CA2042287A1 - Non-woven fabric construction for detergent pouch - Google Patents
Non-woven fabric construction for detergent pouchInfo
- Publication number
- CA2042287A1 CA2042287A1 CA002042287A CA2042287A CA2042287A1 CA 2042287 A1 CA2042287 A1 CA 2042287A1 CA 002042287 A CA002042287 A CA 002042287A CA 2042287 A CA2042287 A CA 2042287A CA 2042287 A1 CA2042287 A1 CA 2042287A1
- Authority
- CA
- Canada
- Prior art keywords
- fibers
- detergent pouch
- laundry detergent
- pouch
- binder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- 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
- C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
- C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/2481—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including layer of mechanically interengaged strands, strand-portions or strand-like strips
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2904—Staple length fiber
- Y10T428/2905—Plural and with bonded intersections only
Abstract
IR#4687 NON-WOVEN FIBRIC CONSTRUCTION
FOR DETERGENT POUCH
ABSTRACT OF THE DISCLOSURE
A laundry detergent pouch comprising a non-woven web of non-woven sensitive material normally having interstices capable of passing laundry detergent powder. The web is compressed and bonded, while compressed, to hold the fibers in compressed condition filling the interstices to prevent passage of detergent powder outwardly thereof.
FOR DETERGENT POUCH
ABSTRACT OF THE DISCLOSURE
A laundry detergent pouch comprising a non-woven web of non-woven sensitive material normally having interstices capable of passing laundry detergent powder. The web is compressed and bonded, while compressed, to hold the fibers in compressed condition filling the interstices to prevent passage of detergent powder outwardly thereof.
Description
~2~7 RACKGROUND OF T~E IN~ENTION
FTELD OF T~E INVENTION
This invention relates to a non-woven fabric construction and, more particular]y, to a non-woven material especially adaptable Eor use as a detergent pouch~
~ESCRIPTION OF THE PRIOR ART
r~any users of au-toma-tic laundry machines prefer to use pouches of detergent because such provides ease of use, reduces waste of detergent hy providing a pre-measured amount oE detergent compatlble with the capacity of the average washing machine, while also e].imlnating contact of the detergent with the hands of the user, and facjlitates general neatness of the laundry area~
~ owe~er, in the past, variolls difEiclJlties have arisen with the pouches of the prior art since the fahric of some pouches fail to hold detergent powder therein, while others have openings too small to allow ~or {ull passage of the detergent into the washing liquid.
~ .f~ 7 Unite(l States Patent No. 4,188,30~ discloses the use of ].aundry pouches having water sensi-tive slde seals whjcl- cause the construction to open at one or more seams when immersed.
In another Unite~l States Patent, No~
d, ~C ,~5~, there i.s taught the use o~ mechani.cally weak I seals l~hich become urlsealed d~le -to the agjtating action o~
I the washing machjne. Rough handling of th;s prodllct during transportati.on and merchandising can lead to failure of the seals prematurely.
United States Patent No. 4,.~48,7.93 rel.ates to water soluble sheets or coatings adl-ered to the porous non-woven substrate which, when dissolved, permit the transport o~ the detergent powders through the intersticed spacings.
SUMMARY OF Tll~ INV}~_TION
~ he present invention overcomes the disadvantages of prior art pouches by util;zjng an advantageous non-woven material, whi.ch is mechanicall.y and chemically treated to preven-t outward passage of even the smal'est partic]es of conventi.onal detergents while dry, yet i.n whicll the interstitial spacing is wi.dely enlarged when disposed in laundry l-quid.
._ ~' , ,~
2D/122~37 To this end, a non-woven sheet of non-water sensitive material or hydrophobic material, sucll as polyester or polypropylene, is provided. Then, this rnaterial is compressed an~ flattened, while being simultaneo-lsly bonded, to maintain this shape by a water sensi-tive bin(3er. The material is then manuFacture~ into a pouch, which is filled with detergent powder. I~hen immersed in the liquid of a laundering machine, the hinder dissolves and the compressed and flattened materi2l resumes substantially its original shape permitting passage of detergent powder outwardly of the pOUC}l.
P,RlEF ~ESC~IPTION OF Tll~ AWIN~S
Fig. 1 is a p]an view of a portion of the non-woven material during an in;tial stage in the manufacture thereof;
Fig. 2 is a sectional detail view taker a~ong the plane of l;ne 2-2 in Fig. l;
Fig. 3 is a view, simi]ar to Fig. 2, after the non-woven material o-f Fig. 2 has been compressed and ~onded; and, Fi~ is a perspective vieW of a pouch llsed in the lnv~ tion Dr E~ ~FSCRTPTION OF T~IE INV~TION
lYith continu;ng reference to the accompanving dral~ing, wherein like reference numerals des;gnate si.m;.]ar parts ln the various v;ews, reference numera]. 10 generally designates a non-woven material forme(l o~ non-water sensj.tive f;.bers, s~lch as those hydrophobic materials including polyester and polypropylene. The filers 12 are of staple length and are arranged into a web of sheet constructlon using techniques, such as flber carding, air lay;.ng, needle punching, felting or the ].ike. The sheet thlckness Of in-ter~iber spacing is adjusted so that .the larges-t particles encountered jn ].aundry detergent powder wil]
pass through the material 10. The fihers comprisi.ng the sl~eet are then bonded -together by chemical pri.nt bonding, heat pa-ttern bonding, sheet saturation bondi.ng or the like, so that the fibers 12 are flattened and compressed to fill the interstices, which honding materi.al, such as a conventi.onal water-sensitive or soluble gum or adhesive, including casein, fill all remalning interstices~ Thus~
sufficient dry strength is achieved so that product integrity is attained during all stages of manufacturing of the pouch generally indicated at 20.
The non-~ater sensitive fihers are selected.
frorn any of those fi.hers which, when wetted, do not lose their abi.lity to hold their high to mediuM cri.mping and are selected from po]yester, polypropylene or any combination or blends of the aforesaid fibers.
The web i.s compressed through compress;.on roll.s or 'belts so that the fiber spacings are reduced to such a degree that detergent powder of the smallest particle si~e to be encountered are effecti.vely preventecl frorn passlng through the material 10. The sheet is then bonded in the compressed state with the water sensitive h;nder or a hinder which can be mechanically disrupted.
~ 'hen a pouch constrlJcted of this materi.a]. is wetted or subJected to agitation, respective]v, the forces and binder holding the web in its compressed state are then el.iminated in the laundering machine dur;n~ the washing cycle allowing the material to expand to i.ts original state, as in Fig. 1, thus permitting the enclosecl detergent powder to be di.spersed into the washing liquid.
Thus, no separate use o-F costly glues or adhesives Eor bonding the seams of the pouch 20 are required, the pouch being constructed by heat sea].ing~
sonic welding, bonding or other simple means of manufact~re.
FTELD OF T~E INVENTION
This invention relates to a non-woven fabric construction and, more particular]y, to a non-woven material especially adaptable Eor use as a detergent pouch~
~ESCRIPTION OF THE PRIOR ART
r~any users of au-toma-tic laundry machines prefer to use pouches of detergent because such provides ease of use, reduces waste of detergent hy providing a pre-measured amount oE detergent compatlble with the capacity of the average washing machine, while also e].imlnating contact of the detergent with the hands of the user, and facjlitates general neatness of the laundry area~
~ owe~er, in the past, variolls difEiclJlties have arisen with the pouches of the prior art since the fahric of some pouches fail to hold detergent powder therein, while others have openings too small to allow ~or {ull passage of the detergent into the washing liquid.
~ .f~ 7 Unite(l States Patent No. 4,188,30~ discloses the use of ].aundry pouches having water sensi-tive slde seals whjcl- cause the construction to open at one or more seams when immersed.
In another Unite~l States Patent, No~
d, ~C ,~5~, there i.s taught the use o~ mechani.cally weak I seals l~hich become urlsealed d~le -to the agjtating action o~
I the washing machjne. Rough handling of th;s prodllct during transportati.on and merchandising can lead to failure of the seals prematurely.
United States Patent No. 4,.~48,7.93 rel.ates to water soluble sheets or coatings adl-ered to the porous non-woven substrate which, when dissolved, permit the transport o~ the detergent powders through the intersticed spacings.
SUMMARY OF Tll~ INV}~_TION
~ he present invention overcomes the disadvantages of prior art pouches by util;zjng an advantageous non-woven material, whi.ch is mechanicall.y and chemically treated to preven-t outward passage of even the smal'est partic]es of conventi.onal detergents while dry, yet i.n whicll the interstitial spacing is wi.dely enlarged when disposed in laundry l-quid.
._ ~' , ,~
2D/122~37 To this end, a non-woven sheet of non-water sensitive material or hydrophobic material, sucll as polyester or polypropylene, is provided. Then, this rnaterial is compressed an~ flattened, while being simultaneo-lsly bonded, to maintain this shape by a water sensi-tive bin(3er. The material is then manuFacture~ into a pouch, which is filled with detergent powder. I~hen immersed in the liquid of a laundering machine, the hinder dissolves and the compressed and flattened materi2l resumes substantially its original shape permitting passage of detergent powder outwardly of the pOUC}l.
P,RlEF ~ESC~IPTION OF Tll~ AWIN~S
Fig. 1 is a p]an view of a portion of the non-woven material during an in;tial stage in the manufacture thereof;
Fig. 2 is a sectional detail view taker a~ong the plane of l;ne 2-2 in Fig. l;
Fig. 3 is a view, simi]ar to Fig. 2, after the non-woven material o-f Fig. 2 has been compressed and ~onded; and, Fi~ is a perspective vieW of a pouch llsed in the lnv~ tion Dr E~ ~FSCRTPTION OF T~IE INV~TION
lYith continu;ng reference to the accompanving dral~ing, wherein like reference numerals des;gnate si.m;.]ar parts ln the various v;ews, reference numera]. 10 generally designates a non-woven material forme(l o~ non-water sensj.tive f;.bers, s~lch as those hydrophobic materials including polyester and polypropylene. The filers 12 are of staple length and are arranged into a web of sheet constructlon using techniques, such as flber carding, air lay;.ng, needle punching, felting or the ].ike. The sheet thlckness Of in-ter~iber spacing is adjusted so that .the larges-t particles encountered jn ].aundry detergent powder wil]
pass through the material 10. The fihers comprisi.ng the sl~eet are then bonded -together by chemical pri.nt bonding, heat pa-ttern bonding, sheet saturation bondi.ng or the like, so that the fibers 12 are flattened and compressed to fill the interstices, which honding materi.al, such as a conventi.onal water-sensitive or soluble gum or adhesive, including casein, fill all remalning interstices~ Thus~
sufficient dry strength is achieved so that product integrity is attained during all stages of manufacturing of the pouch generally indicated at 20.
The non-~ater sensitive fihers are selected.
frorn any of those fi.hers which, when wetted, do not lose their abi.lity to hold their high to mediuM cri.mping and are selected from po]yester, polypropylene or any combination or blends of the aforesaid fibers.
The web i.s compressed through compress;.on roll.s or 'belts so that the fiber spacings are reduced to such a degree that detergent powder of the smallest particle si~e to be encountered are effecti.vely preventecl frorn passlng through the material 10. The sheet is then bonded in the compressed state with the water sensitive h;nder or a hinder which can be mechanically disrupted.
~ 'hen a pouch constrlJcted of this materi.a]. is wetted or subJected to agitation, respective]v, the forces and binder holding the web in its compressed state are then el.iminated in the laundering machine dur;n~ the washing cycle allowing the material to expand to i.ts original state, as in Fig. 1, thus permitting the enclosecl detergent powder to be di.spersed into the washing liquid.
Thus, no separate use o-F costly glues or adhesives Eor bonding the seams of the pouch 20 are required, the pouch being constructed by heat sea].ing~
sonic welding, bonding or other simple means of manufact~re.
Claims (9)
1. A laundry detergent pouch comprising a web of non-water sensitive non-woven fibers said fibers normally having interstices therebetween which pass detergent particles, said fibers being compressed to fill said interstices and bonded to hold said fibers in the compressed condition until utilized in a laundry machine.
2. The laundry detergent pouch of claim 1 wherein the binder used is a water sensitive binder.
3. The laundry detergent pouch of claim 1.
wherein said binder is frangible when agitated in a laundry machine.
wherein said binder is frangible when agitated in a laundry machine.
4. The laundry detergent pouch of claim 1, wherein said fibers are of polyester.
5. The laundry detergent pouch of claim 1, wherein said fibers are of polypropylene.
6. The laundry detergent pouch of claim 1, wherein said fibers are a blend of polyester and polypropylene.
7. The laundry detergent pouch of claim 1, wherein the binder used is a water sensitive binder, said fibers being of polyester.
8. The laundry detergent pouch of claim 1, wherein the binder used is a water sensitive binder, said fibers being a blend of polyester and polypropylene.
9. The laundry detergent pouch of claim 1, wherein the binder used is a water sensitive binder, said fibers being of a blend of polyester fibers and polypropylene fibers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/525,788 US5053270A (en) | 1990-05-18 | 1990-05-18 | Non-woven fabric construction for detergent pouch |
| US525,788 | 1990-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2042287A1 true CA2042287A1 (en) | 1991-11-19 |
Family
ID=24094601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002042287A Abandoned CA2042287A1 (en) | 1990-05-18 | 1991-05-10 | Non-woven fabric construction for detergent pouch |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5053270A (en) |
| CA (1) | CA2042287A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3813773A1 (en) * | 1988-04-23 | 1989-11-02 | Henkel Kgaa | DETERGENT PRODUCTS |
| US6783294B2 (en) | 2000-02-14 | 2004-08-31 | Johnson & Johnson Consumer Companies, Inc. | Solid cleanser holder |
| US6957924B1 (en) | 2000-02-14 | 2005-10-25 | Johnson & Johnson Consumer Companies, Inc. | Textured film devices |
| GB0507404D0 (en) * | 2005-04-13 | 2005-05-18 | Reckitt Benckiser Nv | Emanator blister |
| US20080060741A1 (en) * | 2006-09-07 | 2008-03-13 | Privitera Marc P | Ultrasonically Bonded Nonwoven Permeable Pouch |
| US8008247B2 (en) * | 2008-06-18 | 2011-08-30 | The Clorox Company | Tumble dryer bleach and fabric treatment |
| EP2800803A1 (en) | 2012-01-04 | 2014-11-12 | The Procter and Gamble Company | Active containing fibrous structures with multiple regions |
| CN104040061B (en) * | 2012-01-04 | 2019-11-08 | 宝洁公司 | Fibre structure and its manufacturing method comprising particle |
| RU2690000C2 (en) | 2013-09-06 | 2019-05-30 | Дзе Проктер Энд Гэмбл Компани | Capsules containing water-soluble fibrous materials of walls, and methods for their production |
| US10723983B2 (en) | 2013-09-06 | 2020-07-28 | The Procter & Gamble Company | Pouches comprising apertured film wall materials and methods for making same |
| US11268053B2 (en) | 2019-08-21 | 2022-03-08 | Henkel IP & Holding GmbH | Unit dose packs with non-water soluble covers |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX150317A (en) * | 1978-11-17 | 1984-04-16 | Unilever Nv | IMPROVEMENTS IN CLOSED STOCK MATERIAL BAG FOR PARTICULATE DETERGENTS |
| US4830904A (en) * | 1987-11-06 | 1989-05-16 | James River Corporation | Porous thermoformable heat sealable nonwoven fabric |
-
1990
- 1990-05-18 US US07/525,788 patent/US5053270A/en not_active Expired - Lifetime
-
1991
- 1991-05-10 CA CA002042287A patent/CA2042287A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US5053270A (en) | 1991-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |