US3872604A - Process of treating laundry in laundry driers - Google Patents
Process of treating laundry in laundry driers Download PDFInfo
- Publication number
- US3872604A US3872604A US460528A US46052874A US3872604A US 3872604 A US3872604 A US 3872604A US 460528 A US460528 A US 460528A US 46052874 A US46052874 A US 46052874A US 3872604 A US3872604 A US 3872604A
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- US
- United States
- Prior art keywords
- laundry
- parts
- percent
- agents
- treating
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- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000000203 mixture Substances 0.000 claims abstract description 39
- 238000001035 drying Methods 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 70
- 239000002304 perfume Substances 0.000 claims description 27
- 230000003287 optical effect Effects 0.000 claims description 16
- 239000003380 propellant Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000002781 deodorant agent Substances 0.000 claims description 11
- 239000002216 antistatic agent Substances 0.000 claims description 6
- 125000002091 cationic group Chemical group 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000004902 Softening Agent Substances 0.000 claims description 3
- 230000002070 germicidal effect Effects 0.000 claims description 3
- 238000009955 starching Methods 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims description 2
- 239000000443 aerosol Substances 0.000 abstract description 17
- -1 phenoxy acetyl Chemical group 0.000 description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 14
- 229920000151 polyglycol Polymers 0.000 description 10
- 239000010695 polyglycol Substances 0.000 description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 150000001412 amines Chemical class 0.000 description 7
- 238000005282 brightening Methods 0.000 description 7
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- REZZEXDLIUJMMS-UHFFFAOYSA-M dimethyldioctadecylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC REZZEXDLIUJMMS-UHFFFAOYSA-M 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 5
- 239000004753 textile Substances 0.000 description 5
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 5
- 235000019645 odor Nutrition 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 3
- 239000013543 active substance Substances 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 150000002170 ethers Chemical class 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 3
- 239000008237 rinsing water Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical class NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229940042935 dichlorodifluoromethane Drugs 0.000 description 2
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 238000010409 ironing Methods 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 150000004671 saturated fatty acids Chemical class 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- TXVWTOBHDDIASC-UHFFFAOYSA-N 1,2-diphenylethene-1,2-diamine Chemical class C=1C=CC=CC=1C(N)=C(N)C1=CC=CC=C1 TXVWTOBHDDIASC-UHFFFAOYSA-N 0.000 description 1
- FDCJDKXCCYFOCV-UHFFFAOYSA-N 1-hexadecoxyhexadecane Chemical class CCCCCCCCCCCCCCCCOCCCCCCCCCCCCCCCC FDCJDKXCCYFOCV-UHFFFAOYSA-N 0.000 description 1
- FRPZMMHWLSIFAZ-UHFFFAOYSA-N 10-undecenoic acid Chemical compound OC(=O)CCCCCCCCC=C FRPZMMHWLSIFAZ-UHFFFAOYSA-N 0.000 description 1
- BKKCHPZQDBOJLI-UHFFFAOYSA-N 3-amino-6-[2-(4-aminophenyl)ethenyl]cyclohexa-2,4-diene-1,1-disulfonic acid Chemical class NC1=CC(C(C=C1)C=CC1=CC=C(C=C1)N)(S(=O)(=O)O)S(=O)(=O)O BKKCHPZQDBOJLI-UHFFFAOYSA-N 0.000 description 1
- UMNWFDSXJVFCBQ-UHFFFAOYSA-N 7-amino-3-phenyl-1h-quinolin-2-one Chemical class O=C1NC2=CC(N)=CC=C2C=C1C1=CC=CC=C1 UMNWFDSXJVFCBQ-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical class O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- 244000178870 Lavandula angustifolia Species 0.000 description 1
- 235000010663 Lavandula angustifolia Nutrition 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 229920003171 Poly (ethylene oxide) Chemical class 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical class C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 1
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical class [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 description 1
- HVWGGPRWKSHASF-UHFFFAOYSA-N Sulfuric acid, monooctadecyl ester Chemical class CCCCCCCCCCCCCCCCCCOS(O)(=O)=O HVWGGPRWKSHASF-UHFFFAOYSA-N 0.000 description 1
- XEFQLINVKFYRCS-UHFFFAOYSA-N Triclosan Chemical compound OC1=CC(Cl)=CC=C1OC1=CC=C(Cl)C=C1Cl XEFQLINVKFYRCS-UHFFFAOYSA-N 0.000 description 1
- 241000219793 Trifolium Species 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000003851 azoles Chemical class 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- CADWTSSKOVRVJC-UHFFFAOYSA-N benzyl(dimethyl)azanium;chloride Chemical compound [Cl-].C[NH+](C)CC1=CC=CC=C1 CADWTSSKOVRVJC-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KHAVLLBUVKBTBG-UHFFFAOYSA-N caproleic acid Natural products OC(=O)CCCCCCCC=C KHAVLLBUVKBTBG-UHFFFAOYSA-N 0.000 description 1
- 125000001951 carbamoylamino group Chemical group C(N)(=O)N* 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- SXPWTBGAZSPLHA-UHFFFAOYSA-M cetalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SXPWTBGAZSPLHA-UHFFFAOYSA-M 0.000 description 1
- 229960000228 cetalkonium chloride Drugs 0.000 description 1
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 239000008395 clarifying agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 150000001893 coumarin derivatives Chemical class 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- IKJFYINYNJYDTA-UHFFFAOYSA-N dibenzothiophene sulfone Chemical class C1=CC=C2S(=O)(=O)C3=CC=CC=C3C2=C1 IKJFYINYNJYDTA-UHFFFAOYSA-N 0.000 description 1
- PFKRTWCFCOUBHS-UHFFFAOYSA-N dimethyl(octadecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[NH+](C)C PFKRTWCFCOUBHS-UHFFFAOYSA-N 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical compound Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007786 electrostatic charging Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002979 fabric softener Substances 0.000 description 1
- 125000000373 fatty alcohol group Chemical group 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol group Chemical group C(CCCCCCCCCCCCCCC)O BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 150000002462 imidazolines Chemical class 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 239000001102 lavandula vera Substances 0.000 description 1
- 235000018219 lavender Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000000051 modifying effect Effects 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 1
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical class CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- FTMKAMVLFVRZQX-UHFFFAOYSA-N octadecylphosphonic acid Chemical class CCCCCCCCCCCCCCCCCCP(O)(O)=O FTMKAMVLFVRZQX-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000005471 saturated fatty acid group Chemical group 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- ICUTUKXCWQYESQ-UHFFFAOYSA-N triclocarban Chemical compound C1=CC(Cl)=CC=C1NC(=O)NC1=CC=C(Cl)C(Cl)=C1 ICUTUKXCWQYESQ-UHFFFAOYSA-N 0.000 description 1
- 229960002703 undecylenic acid Drugs 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0043—For use with aerosol devices
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/001—Softening compositions
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/30—Drying processes
-
- C11D2111/12—
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/203—Laundry conditioning arrangements
Definitions
- the novel and advantageous process of treating laundry comprises predrying the washed and rinsed laundry to a predetermined degree of dryness such as to a moisture content between 5 and 70 percent and preferably to a moisture content of about 15 percent, subjecting the predried laundry, preferably in a laundry drier, to the action of laundry treating agents, such as brighteners, antistatic, softening, aromatizing, and the like agents, preferably by spraying said agents thereon. and completing drying of the laundry. Thereby. any moldy smell of the laundry and/or its becoming electrostatically charged are eliminated and/or the properties of the finished laundry are considerably improved. Drying is preferably effected in laundry dryers of the tumbler type and the treating composition is preferably sprayed on the laundry in aerosol form.
- a predetermined degree of dryness such as to a moisture content between 5 and 70 percent and preferably to a moisture content of about 15 percent
- laundry treating agents such as brighteners, antistatic, softening, aromatizing, and the like agents
- the present invention relates to a process of treating laundry in laundry driers and more particularly to a process of treating the laundry in such driers in order to eliminate the undesired moldy, typical laundry smell and/or electrostatic charging of the laundry.
- laundry driers socalled tumblers, which are controlled, regulated, and operated electronically and/or in dependence on the drying time, have been marketed.
- tumblers which are controlled, regulated, and operated electronically and/or in dependence on the drying time.
- the washed laundry can be dried so that, after being centrifuged in the automatic washing machine, it is ready for ironing or can be placed into the linen closets or storage rooms.
- the laundry was additionally subjected, after having been washed and rinsed usually four to five times in the wash ing machine to a so-called softening rinsing procedure.
- softening rinsing procedure preferably cation active and/or nonionogenic agents, emulsifiers, perfumes, optical brighteners or clarifying agents, deodorants, and coloring agents were added to the rinsing water.
- cation active and/or nonionogenic agents, emulsifiers, perfumes, optical brighteners or clarifying agents, deodorants, and coloring agents were added to the rinsing water.
- Part of said agents get on or become attached to the laundry and are supposedto prevent the above-described disadvantages on subsequently drying the laundry in the laundry drier.
- no satisfactory results could be achieved by proceeding in this manner because said agents most of which are readily volatile were separated and removed from the laundry during drying by the air current which passes through the tumbler.
- Another object of the present invention is to provide a simple and effective device for carrying out said process.
- the process according to the present invention comprises the step of applying the treating solutions or emulsions of agents for treating laundry as they are known per se in the laundry drier or turn bler after the laundry has attained a predetermined degree of dryness.
- the above-described disadvantages of the known processes are avoided.
- solutions or emulsions of the laundry treating agents are sprayed upon the laundry whereby the spraying operation is automatically initiated by a timing impulse or as soon as a predetermined degree of dryness of the laundry is attained.
- an aerosol can or container at any place readily accessible to the operator.
- Said aerosol can is connected by means of a suitable pipeline with a nozzle which is in direct connection with the inner space of the drying drum.
- a valve is actuated at a predetermined moment by means of an electrical or mechanical impulse so that the treating agents are sprayed into the rotating or tumbling laundry.
- the moisture content of the laundry should amount to between about 5 percent and about 70 percent and most advantageously to about 15 percent.
- the process according to the present invention has the great advantage in contrast to the heretofore known processes that the agents used for treating the laundry are directly applied in the desired concentration to the laundry without any loss of active agent. As a result thereof, the effectiveness of the treating agents is fully preserved and the disadvantages of the known processes are not encountered.
- All agents can be used in the process of the present invention that are able and required to improve the quality of the laundry, such as cation-active and/or non-ionogenic agents, antistatic agents, perfumes, deodorants, optical brighteners, dyestuffs, and others.
- the cationactive and/or non-ionogenic agents used in the treatment of textiles according to the present invention cause formation of layers and preferably of monomolecular layers of said agents on the textile fibers and thus produce a sliding effect of the fibers with respect to each other. Said layers improve also sliding of the textile fibers on the skin of the person wearing the laundered lingerie 0r garment. As a result thereof, a positive feel and a pleasing fall of the textile material will be achieved and subsequent ironing will be facilitated.
- the layers have a pronounced cl feet of dissipating static electricity and the textiles can be more readily laundered.
- Numerous cation-active and/or non-ionogenic agents can be used for this purpose.
- Especially suitable agents of this type are: 5
- R is preferably a higher saturated fatty acid such as stearic acid or palmitic acid.
- Fatty acid sarkosides (this agent is an anionic agent but can also be used in the claimed process) of the formula RCO-N(CH3)CH COONa wherein R preferably is higher alkyl derived from a saturated fatty acid.
- R is higher alkyl
- Suitable optical brightening agents are, for instance. derivatives of 4,4'-diamino stilbene-2,2-disulfonic acid, in which the amino groups are substituted by triazinyl or other basic groups or by acyl groups. such as acetyl, phenoxy acetyl or alkoxybenzoyl groups. Ureido substituted diamino stilbene disulfonic acids are also useful for this purpose.
- Azoles such as monoazoles in the form of their sulfonic acids or bisazoles, such as bis-naphthotriazolyl compounds are also useful optical brighteners, likewise coumarin derivatives. Such optical brighteners are described, for instance, in Kirk-Othmer Encyclopedia of Chemical Technology Second Edition, volume 3, pages 737 to 749.
- Especially useful quaternary ammonium compounds are, for instance, dimethyl benzyl cetyl ammonium chloride, dimethyl distearyl ammonium chloride, and the like compounds which in aqueous solution have not only a germicidal effect but also act as deodorants because they inhibit the production of malodors due to the action of micro-organisms and, therefore, are useful odor cont rolling agents.
- Perfumes act as malodor counteracting and masking agents without involving any chemical changes. They also have a deodorizing and/or odor modifying effect. Any suitable perfume may be used, whereby, of course; the preferred perfumes are those which do not stain and do not cause discoloration of the laundry. Especially useful are the perfumes of the floral group, imparting flower odors to the laundry, as well as those of the herbal group imparting thereto the odor of hay and grass, clover, and the like. Lavender fragrances or the fragrances of citrus fruits may, of course, also be applied to the laundry.
- Suitable deodorants are, for instance, phenolic polyoxymethylene derivatives, quaternary ammonium compounds, formaldehyde derivatives, 2,4,4 -trichloro-2- hydroxy diphenyl ether, 3,4,4-trichloro carbanilide, alkylolamides of undecylenic acid, and others.
- Antistatic agents are added especially when washing synthetic fiber materials.
- antistatic agents know, such as polyhydric alcohols, for instance, glycerol; amines, for instance, triethanolamine; amides, for instance, N,N-bis-(2-hydroxy ethyl) stearyl amide; polyoxy ethylene derivatives, for instance, hexadecyl ethers of polyethylene 'glycols; amine soaps, for instance, the soaps of stearic acid and octadecyl amine; amine salts of alkyl sulfates, for instance, the salts of guanidine and octadecyl sulfate; quaternary ammonium compounds, for instance, octadecyl trimethyl ammonium chloride; alkyl phosphates, for instance, bisdodecyl hydrogen phosphates; amine salts of alkyl phosphonic acids, for instance, the salts of
- An aerosol composition which has proved to be useful for carrying out the present invention may have the following composition:
- pecially a lower alcohol or a halogenated alkane pecially a lower alcohol or a halogenated alkane.
- the preparations used for treating the partly dried laundry need not contain all the above mentioned groups of active agents. Their composition can be varied considerably; for instance, if a special softening effect is to be achieved, the predominant component of the preparation is the softening agent while the other agents may be omitted or added only in relatively small amounts.
- the preparations may specifically contain a perfume or an aromatizing agent if a pronounced aromatizing effect is desired, or such agents may be omitted completely, for instance, when laundering hospital linen.
- the treatment with the treating solution should be effected as early as possible, i.e., with laundry of a relatively high moisture content because then optimum distribution of the active agents over and throughout the laundry will be achieved due to the extended drying and thus treatment time.
- the treating solution should be applied as late as possible, i.e., when the moisture content of the laundry is very low and thus its degree of dryness is high. Thereby optimum utilization of the treating agents will be achieved and, at the same time, the optimum amount of perfume will adhere to the laundry.
- the treating solution is applied to the laundry at a moisture content between about 5 percent and about percent and preferably at a moisture content of about 15 percent in order to meet both above mentioned requirements.
- a moisture content corresponds to a degree of dryness between 95 percent and 30 percent and preferably of percent.
- compositions according to the present invention without a propellant and to spray them into the dryer by the action of compressed air.
- a solvent is then added to the composition such as, for instance, FREON TF" i.e., l,l,2-trichloro-l,2,2-trifluoro ethane and the like.
- FIG. 1 illustrates a dosing device introducing an aerosol composition into the laundry drier by means of a nozzle and valve controlled by a timer.
- the aerosol can 1 is placed into the holding device 2 with an opening at its bottom through which the outlet 4 of the aerosol can 1 can be conneeted by means of adapter 3 to pipe 5.
- the adapter 3 is designed so that it opens the valve of the aerosol can 1.
- the electrically controlled valve 6 is provided in said pipe 5. Pipe 5 thus is under permanent pressure.
- Pipe 10 leads from valve 6 to nozzle 7.
- Valve 6 is also connected with timing device 8 which is either controlled by the moisture content of the air leaving the drier or by the moisture content of the laundry tumbling in said drier.
- valve 7 is actuated for a certain period of time by an impulse issued from said timing device 8 so that a predetermined amount of active treating agent is sprayed into the dryer and onto the tumbling laundry through nozzle 7. If the aerosol can 1 becomes exhausted, it can easily be replaced by a new aerosol can. The entire dosing device is attached to door 9 of the drier.
- the aerosol composition in the aerosol can 1 may be composed as described hereinafter in the Examples although it is not limited thereto.
- EXAMPLE 1 6 percent of dimethyl distearyl ammonium chloride, 0.5 percent of nonyl phenol polyglycol ether (with 9 moles of ethylene oxide),
- BTC 776 i.e., an alkyl dimethyl benzyl ammonium chloride, of Organon of Duesseldorf, West-Germany,
- UVITEX SEB thiophene-2,5- bisbenzoxazole of Ciba-Geigy of Basel, Switzerland
- FRlGEN 12A i.e., dichlorodifluoro methane of Farbwerke Hoechst, West- Germany.
- This composition for the treatment of laundry is compounded by heating the dimethyl stearyl ammonium chloride and the nonyl phenol polyglycol ether to about 60 C.
- the quaternary ammonium compound is then added thereto and the mixture is thoroughly emulsified in water of 60 C.
- the optical brightening agent and the perfume are admixed thereto. Thereafter, 80 parts of said mixture are then filled with 20 parts of the propellant into suitable aerosol cans.
- An aerosol can with about 350 g. of said mixture is sufficient for treating an average amount of laundry (35 kg. of dry laundry) in a laundry drier about 20 times.
- the aerosol has a softening, bactericidal, and antistatic effect.
- EXAMPLE 2 Composition which has an aromatizing and softening effect and, at the same time, acts as an optical brightener:
- propellant mixture FRIGEN 11/12 i.e., a mixture of 37 parts of trichloro fluoro methane and 63 parts of dichloro difluoro methane of Farbwerke Hoechst, West-Germany.
- EXAMPLE 3 Composition with a softening and bactericidal effect, low in perfume and not containing any brightening agent:
- alkyl C C dimethyl benzyl ammonium chloride 1.00 percent of nonyl phenol polyglycol ether
- EXAMPLE 4 Composition with a good softening and antistatic effect for natural and synthetic fibers:
- C C polyglycol ether 2.0 percent of cetyl trimethyl ammonium chloride, 1.0 percent of dialkyl (C Cm) dimethyl ammonium chloride, 15.0 percent of isopropanol, 0.5 percent of perfume. This mixture is used with 70.0 percent of the propellant FRIGEN 11/12.
- EXAMPLE 5 Composition with a satisfactory softening effect for natural and artificial fibers and an excellent bactericidal effect.
- This mixture is used with 70.0 percent of the propellant FRIGEN 11/12.
- step (a) 4. The process of claim 1, in which the laundry is predried in step (a) to a moisture content of about 15 percent.
- composition consists of 10 parts to 50 parts of a non-combustible aerosol propellant
- At least one of said treating agents being present in said composition.
- finishing agents selected from the group consisting of a cationic surface active treating agent, a non-ionogenic surface active treating agent, an antistatic agent, a perfume. a deodorant, an optical brightener, a dyestuff, a germicidal agent, a starching agent, and a softening agent
- the improvement which consists in the steps of a. predrying the washed and rinsed laundry to a moisture content between about 5 percent and about percent b. spraying upon the predried laundry a composition containing at least one of said finishing agents, and
- step (a) The process of claim 11, in which the rinsed laundry is predried in step (a) to a moisture content of about 15 percent.
Abstract
The novel and advantageous process of treating laundry comprises predrying the washed and rinsed laundry to a predetermined degree of dryness such as to a moisture content between 5 and 70 percent and preferably to a moisture content of about 15 percent, subjecting the predried laundry, preferably in a laundry drier, to the action of laundry treating agents, such as brighteners, antistatic, softening, aromatizing, and the like agents, preferably by spraying said agents thereon, and completing drying of the laundry. Thereby, any moldy smell of the laundry and/or its becoming electrostatically charged are eliminated and/or the properties of the finished laundry are considerably improved. Drying is preferably effected in laundry dryers of the tumbler type and the treating composition is preferably sprayed on the laundry in aerosol form.
Description
United States Patent [191 Keller [4 1 Mar. 25, 1975 PROCESS OF TREATING LAUNDRY IN LAUNDRY DRIERS [75] Inventor: Herbert Keller,
Ludwigshafen/Rhein, Germany [73] Assignee: Joh. A. Benckiser GmbH,
Ludwigshafen/Rhein. Germany 221 Filed: Apr. 12, 1974 21 Appl. No.: 460,528
[30] Foreign Application Priority Data Apr. 13. 1973 Germany 2318596 [52] U.S. Cl 34/9. 34/17, 34/133 51 Int. Cl. F261) 3/()() Field of Search 34/9, 17, 133
[56] References Cited UNITED STATES PATENTS 1,676.786 7/1928 Lissauer 34/17 2.941.309 6/1960 Cobb H 34/133 X 3.180.037 4/1965 Kenreich et a1. 34/133 X 3,698,095 10/1972 Grand et a1 34/9 Primary Examiner-John J. Camby Attorney, Agent, or FirmErich M. H. Radde [57] ABSTRACT The novel and advantageous process of treating laundry comprises predrying the washed and rinsed laundry to a predetermined degree of dryness such as to a moisture content between 5 and 70 percent and preferably to a moisture content of about 15 percent, subjecting the predried laundry, preferably in a laundry drier, to the action of laundry treating agents, such as brighteners, antistatic, softening, aromatizing, and the like agents, preferably by spraying said agents thereon. and completing drying of the laundry. Thereby. any moldy smell of the laundry and/or its becoming electrostatically charged are eliminated and/or the properties of the finished laundry are considerably improved. Drying is preferably effected in laundry dryers of the tumbler type and the treating composition is preferably sprayed on the laundry in aerosol form.
12 Claims, 1 Drawing Figure PROCESS OF TREATING LAUNDRY IN LAUNDRY DRIERS BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process of treating laundry in laundry driers and more particularly to a process of treating the laundry in such driers in order to eliminate the undesired moldy, typical laundry smell and/or electrostatic charging of the laundry.
2. Description of the Prior Art During the last few years laundry driers, socalled tumblers, which are controlled, regulated, and operated electronically and/or in dependence on the drying time, have been marketed. In such laundry driers or tumblers the washed laundry can be dried so that, after being centrifuged in the automatic washing machine, it is ready for ironing or can be placed into the linen closets or storage rooms.
However, when drying the laundry in such driers, it frequently takes on an undesired moldy, typical laundry smell and/or it becomes electrostatically charged. Especially laundry consisting of or containing synthetic fiber material has the tendency to be electrostatically charged.
in order to overcome these disadvantages the laundry was additionally subjected, after having been washed and rinsed usually four to five times in the wash ing machine to a so-called softening rinsing procedure. Thereby, preferably cation active and/or nonionogenic agents, emulsifiers, perfumes, optical brighteners or clarifying agents, deodorants, and coloring agents were added to the rinsing water. Part of said agents get on or become attached to the laundry and are supposedto prevent the above-described disadvantages on subsequently drying the laundry in the laundry drier. However, no satisfactory results could be achieved by proceeding in this manner because said agents most of which are readily volatile were separated and removed from the laundry during drying by the air current which passes through the tumbler. Thus the losses in such agents were considerable. Furthermore, rather large amounts of said agents added to the rinsing liquor, did not adhere to the laundry but went along together with the rinsing water. As a result thereof the rinsing water containing such agents represents a rather considerable burden upon sewage or waste water purification. This is highly undersirable in view of the attempts to protect the environment.
In addition thereto such softening rinsing procedure followed automatically the rinsing procedures in the washing machine. As a result thereof, the entire laundry present in the washing machine is by necessity treated although this is not always required and sometimes even not desired, for instance, with laundry which is to be starched subsequently.
Also cartridges filled with concentrated perfume solutions have been placed at a predetermined position into the air current circulating through the tumbler in order to transfer by vaporization the perfume upon the laundry. Proceeding in this manner, however, is accompanied by two rather important disadvantages. On the one hand, only readily volatile perfumes can be applied in this manner to-the laundry and, on the other hand, such application of the perfume takes place during the entire drying procedure. As a result thereofa large proportion of the vaporized perfume is carried along by the air current and is carried away and thus is not absorbed by the laundry.
SUMMARY OF THE INVENTION It is one object of the present invention to provide a simple and effective process of treating laundry in laundry driers so as to eliminate, for instance, the moldy smell ofdried laundry and that it becomes electrically charged.
Another object of the present invention is to provide a simple and effective device for carrying out said process.
Other objects of the present invention and advantageous features thereof will become apparent as the description proceeds.
In principle the process according to the present invention comprises the step of applying the treating solutions or emulsions of agents for treating laundry as they are known per se in the laundry drier or turn bler after the laundry has attained a predetermined degree of dryness. When proceeding in this manner the above-described disadvantages of the known processes are avoided.
Preferably the solutions or emulsions of the laundry treating agents are sprayed upon the laundry whereby the spraying operation is automatically initiated by a timing impulse or as soon as a predetermined degree of dryness of the laundry is attained.
For this purpose there is installed in the tumbler, for instance, an aerosol can or container at any place readily accessible to the operator. Said aerosol can is connected by means of a suitable pipeline with a nozzle which is in direct connection with the inner space of the drying drum. A valve is actuated at a predetermined moment by means of an electrical or mechanical impulse so that the treating agents are sprayed into the rotating or tumbling laundry.
Thereby, it is of advantage if spraying with the treating agents takes place shortly before the laundry is completely dried. Preferably the moisture content of the laundry should amount to between about 5 percent and about 70 percent and most advantageously to about 15 percent.
The process according to the present invention has the great advantage in contrast to the heretofore known processes that the agents used for treating the laundry are directly applied in the desired concentration to the laundry without any loss of active agent. As a result thereof, the effectiveness of the treating agents is fully preserved and the disadvantages of the known processes are not encountered.
All agents can be used in the process of the present invention that are able and required to improve the quality of the laundry, such as cation-active and/or non-ionogenic agents, antistatic agents, perfumes, deodorants, optical brighteners, dyestuffs, and others.
In addition to their brightening effect, the cationactive and/or non-ionogenic agents used in the treatment of textiles according to the present invention cause formation of layers and preferably of monomolecular layers of said agents on the textile fibers and thus produce a sliding effect of the fibers with respect to each other. Said layers improve also sliding of the textile fibers on the skin of the person wearing the laundered lingerie 0r garment. As a result thereof, a positive feel and a pleasing fall of the textile material will be achieved and subsequent ironing will be facilitated.
3 Furthermore, usually the layers have a pronounced cl feet of dissipating static electricity and the textiles can be more readily laundered. Numerous cation-active and/or non-ionogenic agents can be used for this purpose. Especially suitable agents of this type are: 5
a. Fatty acid polyglycol esters of the formula R (UU HIll- FH ()),,H.
wherein R is preferably a higher saturated fatty acid such as stearic acid or palmitic acid.
b. Fatty alcohol polyglycol ethers of the formula RO(C H O) H in which R-O preferably stands for a higher saturated fatty alcohol group such as a stearyl or palmityl alcohol group.
R C l N c. Fatty acid alkanol amides of the formula q RCONHCH CH OH wherein RCO indicated preferably a higher saturated fatty acid group.
d. Fatty acid amide polyglycol ethers of the formula ea -c -o-(ca cn -o) H R-co-u 2 H2 2 2 n CH CH 0 (ca cs o) n wherein R-CO is preferably a higher saturated fatty 3 acid group. 5
e. Fatty amine polyglycol ethers of the formula wherein R is preferably higher alkyl derived from a sat- 4O urated fatty amine.
f. Fatty acid sarkosides (this agent is an anionic agent but can also be used in the claimed process) of the formula RCO-N(CH3)CH COONa wherein R preferably is higher alkyl derived from a saturated fatty acid.
g. Organic phosphoric acid esters and their salts of the formula 0 P- QR 0H h. Salts of primary, secondary, and tertiary fatty amines of the formulas R NR acid,
CH 3 R N acid /CH R u 3 CH acid,
wherein R is higher alkyl.
4 i. Quaternary ammonium salts of the formula IH R I; R a 501d wherein R is higher alkyl derived from fallow which may be hydrogenated.
j. Amphoteric ammonium compounds ofthe formula R N (CH CH COONa) k. Cation-active imidazoline compounds of the formula F CH CH NH-CO- R. C H -OSO Such agents serve also as fabric softeners and antistatic agents.
Cation-active and nonionogenic agents for treating laundry are also described, for instance, by K. LIND- NER Tenside-Textilhilfsmittel-Waschrohstoffe vol. II (1964) on pages 1610 to 1625, where numerous agents useful for carrying out the present invention are listed.
Suitable optical brightening agents are, for instance. derivatives of 4,4'-diamino stilbene-2,2-disulfonic acid, in which the amino groups are substituted by triazinyl or other basic groups or by acyl groups. such as acetyl, phenoxy acetyl or alkoxybenzoyl groups. Ureido substituted diamino stilbene disulfonic acids are also useful for this purpose.
Derivatives of di-benzo thiophene-5,5-dioxide of the can also be used.
Azoles, such as monoazoles in the form of their sulfonic acids or bisazoles, such as bis-naphthotriazolyl compounds are also useful optical brighteners, likewise coumarin derivatives. Such optical brighteners are described, for instance, in Kirk-Othmer Encyclopedia of Chemical Technology Second Edition, volume 3, pages 737 to 749.
Especially useful quaternary ammonium compounds are, for instance, dimethyl benzyl cetyl ammonium chloride, dimethyl distearyl ammonium chloride, and the like compounds which in aqueous solution have not only a germicidal effect but also act as deodorants because they inhibit the production of malodors due to the action of micro-organisms and, therefore, are useful odor cont rolling agents.
Perfumes act as malodor counteracting and masking agents without involving any chemical changes. They also have a deodorizing and/or odor modifying effect. Any suitable perfume may be used, whereby, of course; the preferred perfumes are those which do not stain and do not cause discoloration of the laundry. Especially useful are the perfumes of the floral group, imparting flower odors to the laundry, as well as those of the herbal group imparting thereto the odor of hay and grass, clover, and the like. Lavender fragrances or the fragrances of citrus fruits may, of course, also be applied to the laundry.
Suitable deodorants are, for instance, phenolic polyoxymethylene derivatives, quaternary ammonium compounds, formaldehyde derivatives, 2,4,4 -trichloro-2- hydroxy diphenyl ether, 3,4,4-trichloro carbanilide, alkylolamides of undecylenic acid, and others.
Antistatic agents are added especially when washing synthetic fiber materials. There are a number of antistatic agents know, such as polyhydric alcohols, for instance, glycerol; amines, for instance, triethanolamine; amides, for instance, N,N-bis-(2-hydroxy ethyl) stearyl amide; polyoxy ethylene derivatives, for instance, hexadecyl ethers of polyethylene 'glycols; amine soaps, for instance, the soaps of stearic acid and octadecyl amine; amine salts of alkyl sulfates, for instance, the salts of guanidine and octadecyl sulfate; quaternary ammonium compounds, for instance, octadecyl trimethyl ammonium chloride; alkyl phosphates, for instance, bisdodecyl hydrogen phosphates; amine salts of alkyl phosphonic acids, for instance, the salts of triethanolamine and octadecyl phosphonic acid, and others.
An aerosol composition which has proved to be useful for carrying out the present invention may have the following composition:
parts to 50 parts ofa liquified or compressed, noncombustible aerosol propellant agent,
0.0 parts and, if present, at least 0.5 parts to 50 parts of a cationic and/or non-ionogenic rinsing additive,
0.0 parts and, if present, at least 0.1 parts to 5 parts of a deodorant,
0.0 parts and, if present, at least 0.1 parts to 5 parts of an optical brightening agent,
0.0 parts and, if present, at least 0.1 parts to 5 parts of a perfume, and/or 0.5 parts to 80 parts of water or a suitable solvent, es-
pecially a lower alcohol or a halogenated alkane.
It may be mentioned that the preparations used for treating the partly dried laundry need not contain all the above mentioned groups of active agents. Their composition can be varied considerably; for instance, if a special softening effect is to be achieved, the predominant component of the preparation is the softening agent while the other agents may be omitted or added only in relatively small amounts. Likewise, the preparations may specifically contain a perfume or an aromatizing agent if a pronounced aromatizing effect is desired, or such agents may be omitted completely, for instance, when laundering hospital linen.
When applying the treating preparations to the laundry, satisfactory results are achieved only by a compromise between the following facts:
a. On the one hand, the treatment with the treating solution should be effected as early as possible, i.e., with laundry of a relatively high moisture content because then optimum distribution of the active agents over and throughout the laundry will be achieved due to the extended drying and thus treatment time.
b. On the other hand, the treating solution should be applied as late as possible, i.e., when the moisture content of the laundry is very low and thus its degree of dryness is high. Thereby optimum utilization of the treating agents will be achieved and, at the same time, the optimum amount of perfume will adhere to the laundry.
As has been found, satisfactory results are achieved if the treating solution is applied to the laundry at a moisture content between about 5 percent and about percent and preferably at a moisture content of about 15 percent in order to meet both above mentioned requirements. Such a moisture content corresponds to a degree of dryness between 95 percent and 30 percent and preferably of percent.
Instead of subjecting the laundry to a softening, brightening and the like treatment as described hereinabove, it is also possible to subject it to a starching treatment. In this case, those pieces of the laundry which are to be starched must be separated from those pieces which are not to be starched, and must be treated separately, too. Heretofore this was not possible, because the softening rinsing step took place as the last step in the washing machine so that the entire laundry had to be subjected to the treatment with the solftening or other agents, although laundry which subsequently had to be starched needed not be treated therewith.
It is, of course, also possible to use the compositions according to the present invention without a propellant and to spray them into the dryer by the action of compressed air. Preferably a solvent is then added to the composition such as, for instance, FREON TF" i.e., l,l,2-trichloro-l,2,2-trifluoro ethane and the like.
BRIEF DESCRIPTION OF THE DRAWING The attached drawing illustrates a device for introducing the treating agent into the laundry drier. In said drawing FIG. 1 illustrates a dosing device introducing an aerosol composition into the laundry drier by means of a nozzle and valve controlled by a timer.
DESCRIPTION OF THE PREFERRED EMBODIMENTS In said FIG. 1 the aerosol can 1 is placed into the holding device 2 with an opening at its bottom through which the outlet 4 of the aerosol can 1 can be conneeted by means of adapter 3 to pipe 5. The adapter 3 is designed so that it opens the valve of the aerosol can 1. The electrically controlled valve 6 is provided in said pipe 5. Pipe 5 thus is under permanent pressure. Pipe 10 leads from valve 6 to nozzle 7. Valve 6 is also connected with timing device 8 which is either controlled by the moisture content of the air leaving the drier or by the moisture content of the laundry tumbling in said drier. At a predetermined moment valve 7 is actuated for a certain period of time by an impulse issued from said timing device 8 so that a predetermined amount of active treating agent is sprayed into the dryer and onto the tumbling laundry through nozzle 7. If the aerosol can 1 becomes exhausted, it can easily be replaced by a new aerosol can. The entire dosing device is attached to door 9 of the drier.
The aerosol composition in the aerosol can 1 may be composed as described hereinafter in the Examples although it is not limited thereto.
EXAMPLE 1 6 percent of dimethyl distearyl ammonium chloride, 0.5 percent of nonyl phenol polyglycol ether (with 9 moles of ethylene oxide),
percent of the quaternary ammonium compound designated as BTC 776 i.e., an alkyl dimethyl benzyl ammonium chloride, of Organon of Duesseldorf, West-Germany,
percent of the optical brightening agent designated as UVITEX SEB, i.e., thiophene-2,5- bisbenzoxazole of Ciba-Geigy of Basel, Switzerland,
percent of a perfume designated as HERPYL 495/72 of the firm UOP of Paris-Colombes, France, and 90.5 percent of water.
Eighty parts of said mixture are mixed with parts of the propellant designated as FRlGEN 12A i.e., dichlorodifluoro methane of Farbwerke Hoechst, West- Germany.
This composition for the treatment of laundry is compounded by heating the dimethyl stearyl ammonium chloride and the nonyl phenol polyglycol ether to about 60 C. The quaternary ammonium compound is then added thereto and the mixture is thoroughly emulsified in water of 60 C. After cooling the mixture to 40 C., the optical brightening agent and the perfume are admixed thereto. Thereafter, 80 parts of said mixture are then filled with 20 parts of the propellant into suitable aerosol cans.
An aerosol can with about 350 g. of said mixture is sufficient for treating an average amount of laundry (35 kg. of dry laundry) in a laundry drier about 20 times. The aerosol has a softening, bactericidal, and antistatic effect.
EXAMPLE 2 Composition which has an aromatizing and softening effect and, at the same time, acts as an optical brightener:
13.0 percent of dimethyl distearyl ammonium chloride,
1.5 percent of nonyl phenyl polyglycol ether,
14.9 percent of isopropanol,
0.5 percent of perfume,
0.1 percent of the optical brightener Blankophor FBO" of Farbwerke Bayer, i.e., a derivative of 3- phenyl-7-amino carbostyril.
As propellant there is admixed thereto 70.0 percent of the propellant mixture FRIGEN 11/12," i.e., a mixture of 37 parts of trichloro fluoro methane and 63 parts of dichloro difluoro methane of Farbwerke Hoechst, West-Germany.
EXAMPLE 3 Composition with a softening and bactericidal effect, low in perfume and not containing any brightening agent:
12.0 percent of dimethyl distearyl ammonium chloride,
1.75 percent of alkyl (C C dimethyl benzyl ammonium chloride 1.00 percent of nonyl phenol polyglycol ether,
15.00 percent of isopropanol,
0.25 percent of perfume.
This mixture is used together with 70.0 percent of the propellant FRIGEN 11/12."
EXAMPLE 4' Composition with a good softening and antistatic effect for natural and synthetic fibers:
9.5 percent of dimethyl distearyl ammonium chloride, 2.0 percent of a fatty amine polyglycol ether. i.e., a
tallow amine (C C polyglycol ether 2.0 percent of cetyl trimethyl ammonium chloride, 1.0 percent of dialkyl (C Cm) dimethyl ammonium chloride, 15.0 percent of isopropanol, 0.5 percent of perfume. This mixture is used with 70.0 percent of the propellant FRIGEN 11/12.
EXAMPLE 5 Composition with a satisfactory softening effect for natural and artificial fibers and an excellent bactericidal effect.
12.75 percent of a fatty acid (C Cm) ethanolamide,
1.50 percent of nonyl phenyl polyglycol ether,
0.25 percent of a perfume,
15.25 percent of isopropanol,
0.25 percent of IRGASAN DP 300" (2,4,4-
trichloro-2-hydroxy diphenyl ether of the firm Ciba-Geigy, Basel, Switzerland, as bactericidal agent.
This mixture is used with 70.0 percent of the propellant FRIGEN 11/12.
While the process according to the present invention has proved to be especially useful when applied to laundry dried in laundry tumbler driers, it can also be employed for the treatment of laundry in drying chambers or other drying apparatus.
lt has been found that at least small amounts of water or solvent must be present in the treating solution or aerosol because otherwise no homogeneous solution would be formed.
Of course, many changes and variations in the composition of the treating agents to be applied to the laundry, in the apparatus used for applying them thereto, in the manner of applying them thereto, in the degree of dryness of the laundry on application of the treating agent, and the like may be made by those skilled in the art in accordance with the principles set forth herein and in the claims annexed hereto.
I claim:
1. In a process of subjecting laundry to a finishing treatment, the improvement which consists in the steps of a. predrying the laundry to a moisture content between about 5 percent and about percent subsequently to the rinsing step,
b. spraying upon the predried laundry a composition containing at least one conventional agent for treating laundry to improve its properties, and
c. completing drying.
2. The process of claim 1, in which solutions of such agents are sprayed upon the predried laundry.
3. The process of claim 1, in which emulsions of such agents are sprayed upon the predried laundry.
4. The process of claim 1, in which the laundry is predried in step (a) to a moisture content of about 15 percent.
S. The process of claim 1, in which the treating composition is sprayed automatically upon the laundry, said spraying being initiated by an impulse controlled by and dependent on the drying time.
6. The process of claim 1, in which the spraying step is automatically initiated at a predetermined degree of dryness.
7. The process of claim 1, in which the composition consists of 10 parts to 50 parts of a non-combustible aerosol propellant,
0.5 parts to 80 parts of water,
0.0 parts to 50 parts ofa cationic surface active treating agent, 0.0 parts to parts of a deodorant,
0.0 parts to 5 parts of an optical brightener, and 0.0
parts to 5 parts of a perfume,
at least one of said treating agents being present in said composition.
8. The process of claim 1, in which the composition consists of parts to 50 parts of a non-combustible aerosol propellant,
0.5 parts to 80 parts of water,
0.0 parts to 50 parts of a non-ionogenic treating agent,
0.0 parts to 5 parts of a deodorant,
0.0 parts to 5 parts of an optical brightener, and
0.0 parts to 5 parts of a perfume, at least one of said treating agents being present in said composition.
9. The process of claim 7, in which at least part of the water is replaced by an organic solvent.
10. The process of claim 8, in which at least part of the water is replaced by an organic solvent.
11. In a process of subjecting laundry to a finishing treatment with at least one of the finishing agents selected from the group consisting of a cationic surface active treating agent, a non-ionogenic surface active treating agent, an antistatic agent, a perfume. a deodorant, an optical brightener, a dyestuff, a germicidal agent, a starching agent, and a softening agent, the improvement which consists in the steps of a. predrying the washed and rinsed laundry to a moisture content between about 5 percent and about percent b. spraying upon the predried laundry a composition containing at least one of said finishing agents, and
b. completing drying of the thus treated laundry.
12. The process of claim 11, in which the rinsed laundry is predried in step (a) to a moisture content of about 15 percent.
* =l= =l l
Claims (12)
1. IN A PROCESS OF SUBJECTING LAUNDRY TO A FINISHING TREATMENT, THE IMPROVEMENT WHICH CONSISTS IN THE STEPS OF A. PREDRYING THE LAUNDRY TO A MOISTURE CONTENT BETWEEN ABOUT 5 PERCENT AND ABOUT 70 PERCENT SUBSEQUENTLY TO THE RINSING STEP, B. SPRAYING UPON THE PREDRIED LAUNDRY A COMPOSITION CONTAINING AT LEAST ONE CONVENTIONAL AGENT FOR TREATING LAUNDRY TO IMPROVE ITS PROPERTIES, AND C. COMPLETING DRYING.
2. The process of claim 1, in which solutions of such agents are sprayed upon the predried laundry.
3. The process of claim 1, in which emulsions of such agents are sprayed upon the predried laundry.
4. The process of claim 1, in which the laundry is predried in step (a) to a moisture content of about 15 percent.
5. The process of claim 1, in which the treating composition is sprayed automatically upon the laundry, said spraying being initiated by an impulse controlled by and dependent on the drying time.
6. The process of claim 1, in which the spraying step is automatically initiated at a predetermined degree of dryness.
7. The process of claim 1, in which the composition consists of 10 parts to 50 parts of a non-combustible aerosol propellant, 0.5 parts to 80 parts of water, 0.0 parts to 50 parts of a cationic surface active treating agent, 0.0 parts to 5 parts of a deodorant, 0.0 parts to 5 parts of an optical brightener, and 0.0 parts to 5 parts of a perfume, at least one of said treating agents being present in said composition.
8. The process of claim 1, in which the composition consists of 10 parts to 50 parts of a non-combustible aerosol propellant, 0.5 parts to 80 parts of water, 0.0 parts to 50 parts of a non-ionogenic treating agent, 0.0 parts to 5 parts of a deodorant, 0.0 parts to 5 parts of an optical brightener, and 0.0 parts to 5 parts of a perfume, at least one of said treating agents being present in said composition.
9. The process of claim 7, in which at least part of the water is replaced by an organic solvent.
10. The process of claim 8, in which at least part of the water is replaced by an organic solvent.
11. In a process of subjecting laundry to a finishing treatment with at least one of the finishing agents selected from the group consisting of a cationic surface active treating agent, a non-ionogenic surface active treating agent, an antistatic agent, a perfume, a deodorant, an optical brightener, a dyestuff, a germicidal agent, a starching agent, and a softening agent, the improvement which consists in the steps of a. predrying the washed and rinsed laundry to a moisture content between about 5 percent and about 70 percent b. spraying upon the predried laundry a composition containing at least one of said finishing agents, and b. completing drying of the thus treated laundry.
12. The process of claim 11, in which the rinsed laundry is predried in step (a) to a moisture content of about 15 percent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US04/809,443 US3956396A (en) | 1974-04-12 | 1969-03-21 | Safe diacyl peroxide solution compositions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2318596A DE2318596B2 (en) | 1973-04-13 | 1973-04-13 | Method for treating laundry in tumble dryers |
Publications (1)
Publication Number | Publication Date |
---|---|
US3872604A true US3872604A (en) | 1975-03-25 |
Family
ID=5877909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US460528A Expired - Lifetime US3872604A (en) | 1973-04-13 | 1974-04-12 | Process of treating laundry in laundry driers |
Country Status (9)
Country | Link |
---|---|
US (1) | US3872604A (en) |
BE (1) | BE813690A (en) |
CA (1) | CA1020307A (en) |
CH (1) | CH586308A5 (en) |
DE (1) | DE2318596B2 (en) |
FR (1) | FR2225565B3 (en) |
GB (1) | GB1472601A (en) |
IT (1) | IT1003570B (en) |
NL (1) | NL7405026A (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4236320A (en) * | 1978-05-29 | 1980-12-02 | Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa) | Method and apparatus for conditioning and drying laundry |
US4707414A (en) * | 1984-04-09 | 1987-11-17 | General Dynamics, Pomona Division | Electrostatic-free package |
US5749163A (en) * | 1995-03-08 | 1998-05-12 | Haggar Clothing Co. | Apparatus and method for imparting wrinkle-resistant properties to garments and other articles |
US6077318A (en) * | 1994-08-12 | 2000-06-20 | The Procter & Gamble Company | Method of using a composition for reducing malodor impression |
US6093374A (en) * | 1998-10-26 | 2000-07-25 | Bukowsky; Clifton R. | Potpourri stirrer and refresher device |
US6146621A (en) * | 1994-08-12 | 2000-11-14 | The Procter & Gamble Company | Composition for reducing malodor impression on inanimate surfaces |
US20030224965A1 (en) * | 2002-05-28 | 2003-12-04 | Johnsondiversey, Inc. | Apparatus, methods, and compositions for adding fragrance to laundry |
US6682694B2 (en) | 1994-08-12 | 2004-01-27 | The Procter & Gamble Company | Uncomplexed cyclodextrin solutions for odor control on inanimate surfaces |
US20040025368A1 (en) * | 2002-04-22 | 2004-02-12 | The Procter & Gamble Company | Fabric article treating method and apparatus |
US20040123489A1 (en) * | 2002-04-22 | 2004-07-01 | The Procter & Gamble Company | Thermal protection of fabric article treating device |
US20040134090A1 (en) * | 2002-04-22 | 2004-07-15 | The Procter & Gamble Company | Fabric article treating device comprising more than one housing |
US20040143994A1 (en) * | 2002-04-22 | 2004-07-29 | The Proctor & Gamble Company | Fabric article treating apparatus with safety device and controller |
US20040259750A1 (en) * | 2002-04-22 | 2004-12-23 | The Procter & Gamble Company | Processes and apparatuses for applying a benefit composition to one or more fabric articles during a fabric enhancement operation |
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US20050022311A1 (en) * | 2002-04-22 | 2005-02-03 | The Procter & Gamble Company | Fabric article treating system and method |
WO2005010269A1 (en) * | 2003-07-22 | 2005-02-03 | Deotexis Inc. | Method for the application of fragrances to textile materials and fragrant substance |
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US20050076532A1 (en) * | 2002-04-22 | 2005-04-14 | Ward Thomas Edward | Fabric article treating device and system with anti-microbial agent |
US20050076453A1 (en) * | 2002-04-22 | 2005-04-14 | Lucas Michelle Faith | Method of enhancing a fabric article |
US20050091879A1 (en) * | 2002-04-22 | 2005-05-05 | The Procter & Gamble Company | Volatile material delivery method |
US20050120584A1 (en) * | 2002-04-22 | 2005-06-09 | Duval Dean L. | Fabric article treating device and system |
US20050251924A1 (en) * | 2002-04-22 | 2005-11-17 | Du Val Dean L | Uniform delivery of compositions |
US20060080860A1 (en) * | 2004-08-26 | 2006-04-20 | Clark Melissa D | Fabric article treating device and system |
US20070180728A1 (en) * | 2006-01-25 | 2007-08-09 | Kim Young S | Laundry dryer |
EP1852539A1 (en) * | 2006-05-02 | 2007-11-07 | Electrolux Home Products Corporation N.V. | Drying program with anti-crease phase and dryer |
US20080155756A1 (en) * | 2006-12-29 | 2008-07-03 | Ogden J Michael | Method and apparatus for delivering liquid fabric treatment compositions in washing machines |
EP2072658A1 (en) * | 2007-12-21 | 2009-06-24 | Indesit Company, S.P.A. | Electric device for washing and/or drying articles |
US7645746B1 (en) | 2000-11-13 | 2010-01-12 | The Procter & Gamble Company | Composition for reducing malodor impression on inanimate surfaces |
US20110138541A1 (en) * | 2009-12-15 | 2011-06-16 | Whirlpool Corporation | Method for dispensing an enzyme in a laundry treating appliance |
US20110209293A1 (en) * | 2010-02-26 | 2011-09-01 | Whirlpool Corporation | Method for treating laundry in a clothes dryer |
US8881330B2 (en) | 2010-12-14 | 2014-11-11 | Whirlpool Corporation | Method of operating a laundry treating appliance |
US20220054888A1 (en) * | 2020-08-18 | 2022-02-24 | Depco, Inc. | Therapeutic or exercise putty specially formulated to reduce transmission of harmful viruses, bacteria and microbial pathogens |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1596791A (en) * | 1977-02-15 | 1981-08-26 | Unilever Ltd | Deodorant detergent composition |
DE4411810A1 (en) * | 1994-04-06 | 1995-10-12 | Sulzenbacher Textilpflege Gmbh | Method and device for perfuming laundry |
GB2346900A (en) * | 1999-02-18 | 2000-08-23 | Reckitt & Colman Inc | Deodorizing compositions for fibrous substrates |
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US2941309A (en) * | 1956-12-13 | 1960-06-21 | Whirlpool Co | Clothes dampener for clothes driers |
US3180037A (en) * | 1962-05-07 | 1965-04-27 | Whirlpool Co | Apparatus for bleaching fabrics and the like |
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-
1973
- 1973-04-13 DE DE2318596A patent/DE2318596B2/en not_active Ceased
-
1974
- 1974-02-20 IT IT48621/74A patent/IT1003570B/en active
- 1974-04-09 CH CH493474A patent/CH586308A5/xx not_active IP Right Cessation
- 1974-04-11 NL NL7405026A patent/NL7405026A/xx not_active Application Discontinuation
- 1974-04-12 FR FR7413026A patent/FR2225565B3/fr not_active Expired
- 1974-04-12 US US460528A patent/US3872604A/en not_active Expired - Lifetime
- 1974-04-12 BE BE143180A patent/BE813690A/en not_active IP Right Cessation
- 1974-04-13 GB GB1438274A patent/GB1472601A/en not_active Expired
- 1974-04-16 CA CA197,558A patent/CA1020307A/en not_active Expired
Patent Citations (4)
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US1676786A (en) * | 1926-04-17 | 1928-07-10 | Louisville Drying Machinery Co | Drier control |
US2941309A (en) * | 1956-12-13 | 1960-06-21 | Whirlpool Co | Clothes dampener for clothes driers |
US3180037A (en) * | 1962-05-07 | 1965-04-27 | Whirlpool Co | Apparatus for bleaching fabrics and the like |
US3698095A (en) * | 1970-10-20 | 1972-10-17 | Colgate Palmolive Co | Fiber conditioning article |
Cited By (64)
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US4236320A (en) * | 1978-05-29 | 1980-12-02 | Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa) | Method and apparatus for conditioning and drying laundry |
US4707414A (en) * | 1984-04-09 | 1987-11-17 | General Dynamics, Pomona Division | Electrostatic-free package |
US6077318A (en) * | 1994-08-12 | 2000-06-20 | The Procter & Gamble Company | Method of using a composition for reducing malodor impression |
US6146621A (en) * | 1994-08-12 | 2000-11-14 | The Procter & Gamble Company | Composition for reducing malodor impression on inanimate surfaces |
US6248135B1 (en) | 1994-08-12 | 2001-06-19 | The Procter & Gamble Company | Composition for reducing malodor impression on inanimate surfaces |
US6682694B2 (en) | 1994-08-12 | 2004-01-27 | The Procter & Gamble Company | Uncomplexed cyclodextrin solutions for odor control on inanimate surfaces |
US5749163A (en) * | 1995-03-08 | 1998-05-12 | Haggar Clothing Co. | Apparatus and method for imparting wrinkle-resistant properties to garments and other articles |
US5980583A (en) * | 1995-03-08 | 1999-11-09 | Haggar Clothing Co. | Apparatus and method for imparting wrinkle-resistant properties to garments and other articles |
US6093374A (en) * | 1998-10-26 | 2000-07-25 | Bukowsky; Clifton R. | Potpourri stirrer and refresher device |
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US7645746B1 (en) | 2000-11-13 | 2010-01-12 | The Procter & Gamble Company | Composition for reducing malodor impression on inanimate surfaces |
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US20110016643A1 (en) * | 2002-04-22 | 2011-01-27 | Duval Dean Larry | Processes and apparatuses for applying a benefit composition to one or more fabric articles during a fabric enhancement operation |
US20050076534A1 (en) * | 2002-04-22 | 2005-04-14 | Kofi Ofosu-Asante | Fabric article treating device and system with static control |
US20050076533A1 (en) * | 2002-04-22 | 2005-04-14 | Huston Eric Joseph | Fabric article treating device and system with suggestive scent |
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US20050076453A1 (en) * | 2002-04-22 | 2005-04-14 | Lucas Michelle Faith | Method of enhancing a fabric article |
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US20110209293A1 (en) * | 2010-02-26 | 2011-09-01 | Whirlpool Corporation | Method for treating laundry in a clothes dryer |
US8974546B2 (en) * | 2010-02-26 | 2015-03-10 | Whirlpool Corporation | Method for treating laundry in a clothes dryer |
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Also Published As
Publication number | Publication date |
---|---|
CA1020307A (en) | 1977-11-08 |
NL7405026A (en) | 1974-10-15 |
BE813690A (en) | 1974-07-31 |
DE2318596A1 (en) | 1974-11-28 |
IT1003570B (en) | 1976-06-10 |
FR2225565A1 (en) | 1974-11-08 |
GB1472601A (en) | 1977-05-04 |
FR2225565B3 (en) | 1977-02-18 |
DE2318596B2 (en) | 1980-04-03 |
CH586308A5 (en) | 1977-03-31 |
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