CA2354788A1 - Ink, ink-jet recording process, recorded article, recording unit, ink cartridge, ink-jet recording apparatus, fluorescence enhancing method and method of elongating life time of fluorescence - Google Patents

Ink, ink-jet recording process, recorded article, recording unit, ink cartridge, ink-jet recording apparatus, fluorescence enhancing method and method of elongating life time of fluorescence Download PDF

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Publication number
CA2354788A1
CA2354788A1 CA 2354788 CA2354788A CA2354788A1 CA 2354788 A1 CA2354788 A1 CA 2354788A1 CA 2354788 CA2354788 CA 2354788 CA 2354788 A CA2354788 A CA 2354788A CA 2354788 A1 CA2354788 A1 CA 2354788A1
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CA
Canada
Prior art keywords
ink
fluorescence
holding member
coloring material
ink according
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.)
Granted
Application number
CA 2354788
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French (fr)
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CA2354788C (en
Inventor
Akira Nagashima
Shinichi Hakamada
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Canon Inc
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Canon Inc
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Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Publication of CA2354788A1 publication Critical patent/CA2354788A1/en
Application granted granted Critical
Publication of CA2354788C publication Critical patent/CA2354788C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/32—Inkjet printing inks characterised by colouring agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J32/00—Ink-ribbon cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/36—Inkjet printing inks based on non-aqueous solvents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/50—Sympathetic, colour changing or similar inks

Abstract

Disclosed herein is an ink comprising (i) first and second organic compounds which are incompatible with each other;
(ii) at least one of a compound exhibiting fluorescence properties and a coloring material exhibiting fluorescence properties; and (iii) a liquids medium dissolving or dispersing the components (i) and (ii) therein.

Claims (84)

1. An ink comprising (i) first and second organic compounds which are incompatible with each other;
(ii) at least one of a compound exhibiting fluorescence properties and a coloring material exhibiting fluorescence properties; and (iii) a liquid medium dissolving or dispersing the components (i) and (ii) therein.
2. The ink according to Claim 1, wherein the ink is a water-based ink.
3. The ink according to Claim 1 or 2, wherein the liquid medium is water.
4. The ink according to any one of Claims 1 to 3, which is applied to a recording medium from an ink applying means, wherein there is a gap between the ink applying means and the recording medium.
5. The ink according to any one of Claims 1 to 4, wherein the content of the component (ii) in the ink is at most 1.5 % by weight.
6. The ink according to Claim 5, wherein the content of the component (ii) in the ink is at most 1.0 % by weight based on the total weight of the ink.
7. The ink according to any one of Claims 1 to 6, wherein the component (ii) is water-soluble or hydrophilic.
8. The ink according to any one of Claims 1 to 7, wherein the content of the component (ii) in the ink is at least a concentration sufficient to exhibit the maximum fluorescence intensity in the ink.
9. The ink according to Claim 8, wherein the content of the component (ii) in the ink is at least a concentration sufficient to exhibit the maximum fluorescence intensity in a state dissolved in water.
10. The ink according to Claim 1, wherein the component (i) dissolves, disperses, or dissolves and disperses the component (ii) therein.
11. The ink according to any one of Claims 1 to 10, wherein one of the first and second organic compounds of the component (i) has a solubility parameter value of at least 15, and the other has a solubility parameter value of at most 13.
12. The ink according to any one of Claims 1 to 11, wherein the first and second organic compounds of the component (i) are nonpolar compounds.
13. The ink according to any one of Claims 1 to 12, wherein the first and second organic compounds of the component (i) are both water-soluble.
14. The ink according to Claim 13, wherein the first and second organic compounds of the component (i) are both liquid.
15. The ink according to any one of Claims 1 to 14, wherein one of the first and second organic compounds of the component (i) has a glycerol group.
16. The ink according to Claim 15, wherein the organic compound having a glycerol group has at least 3 hydroxyl groups.
17. The ink according to Claim 15 or 16, wherein the organic compound having a glycerol group is liquid at normal temperature.
18. The ink according to Claim 1, wherein one of the first and second organic compounds of the component (i) is a nonionic surfactant.
19. The ink according to Claim 18, wherein the nonionic surfactant is liquid at normal temperature.
20. The ink according to Claim 18, wherein HLB of the nonionic surfactant is at most 13.
21. The ink according to Claim 18 or 19, wherein the nonionic surfactant has a cloud point.
22. The ink according to Claim 20, wherein the nonionic surfactant is contained in an amount that the nonionic surfactant is not separated at an interface of an aqueous solution in a state of the aqueous solution.
23. The ink according to Claim 22, wherein the nonionic surfactant is contained in an amount that the nonionic surfactant is not separated at an interface of the ink in a state of an ink from which the component (ii) has been removed.
24. The ink according to Claim 18, wherein the nonionic surfactant has an acetylene group.
25. The ink according to Claim 24, wherein the nonionic surfactant has a structure represented by the following general formula (I) wherein A and B are, independently of each other, C n H2n+1 (n being an integer of 1 to 10), and X and Y are, independently of each other, a ring-opening ethylene oxide unit and/or a ring-opening propylene oxide unit.
26. The ink according to any one of Claims 18 to 25, wherein the nonionic surfactant is contained in a proportion of at least 1 % by weight based on the total weight of the ink.
27. The ink according to any one of Claims 1 to 26, which further comprises a monohydric alcohol.
28. The ink according to any one of Claims 1 to 27, which further comprises a coloring material exhibiting no fluorescence.
29. The ink according to Claim 28, wherein the coloring material exhibiting no fluorescence is a coloring material having water solubility.
30. The ink according to Claim 28, wherein the coloring material exhibiting no fluorescence is a coloring material directly coloring a recording medium.
31. The ink according to Claim 28, wherein the coloring material exhibiting no fluorescence is an azo dye.
32. The ink according to Claim 28, wherein the content of the coloring material exhibiting no fluorescence in the ink is not lower than the content of the coloring material exhibiting fluorescence in the ink.
33. The ink according to Claim 28, wherein the coloring material exhibiting no fluorescence has a carboxyl group or its salt group.
34. The ink according to Claim 28, wherein the counter ion to the hydrophilic group of the coloring material exhibiting no fluorescence contains at least one ammonium ion.
35. The ink according to any one of Claims 1 to 34, which further comprises at least one selected from the group consisting of urea and urea derivatives.
36. The ink according to Claim 35, wherein the urea derivative is not a cyclic compound.
37. The ink according to Claim 35, wherein the urea derivative is at least one selected from the group consisting of alkyl derivatives of urea and ethylene oxide and/or propylene oxide adducts of urea.
38. The ink according to any one of Claims 1 to 37, which further comprises a compound having a solubility parameter value between the solubility parameter values of the 2 organic compounds incompatible with each other.
39. The ink according to any one of Claims 1 to 38, which further comprises a compound having a vapor pressure not higher than that of triethylene glycol.
40. The ink according to any one of Claims 1 to 39, which further comprises a compound having a vapor pressure not lower than that diethyleneglycol.
41. The ink according to Claim 40, wherein the compound having a vapor pressure not lower than that diethyleneglycol has a solubility parameter between the solubility parameters of the 2 organic compounds incompatible with each other.
42. The ink according to Claim 40 or 41, wherein the compound having a vapor pressure not lower than that diethyleneglycol is at least one of diethylene glycol and ethylene glycol.
43. The ink according to any one of Claims 1 to 42, wherein the ink from which the compound exhibiting fluorescence and/or the coloring material exhibiting fluorescence, additives and the other coloring material have been removed is nonionic.
44. The ink according to any one of Claims 1 to 43, wherein the surface tension of the ink is at most 40 mN/m (dyn/cm).
45. The ink according to any one of Claims 1 to 44, wherein the pH of the ink is at least 8.
46. The ink according to any one of Claims 1 to 45, wherein an ammonium ion and an alkali metal ion are used in combination as counter ions of the coloring material(s) in the ink.
47. The ink according to any one of Claims 1 to 46, which has a maximunm wavelength has excitation and a fluorescence maximum wavelength, and the maximum wavelength for excitation is shorter than the fluorescence maximum wavelength.
48. The ink according to any one of Claims 1 to 47, which is an ink for ink-jet recording.
49. An ink-jet recording process, comprising the step of ejecting the ink according to Claim 48 from an orifice in response to recording signals.
50. The ink-jet recording process according to Claim 49, wherein the step comprises a sub-step of applying thermal energy to the ink to eject the ink from an orifice.
51. A recorded article obtained by the ink-jet recording process according to Claim 50, wherein the fluorescence intensity of a recorded portion formed on wood-free paper has a proportional relationship to the water content in the wood-free paper.
52. The recorded article according to Claim 51, which has a maximum wavelength for excitation and a fluoresecnce maximum wavelength, maximum wavelength for excitation is shoter than the fluorescence maximum wavelength.
53. A recorded article having a colored portion exhibiting fluorescence on a recording medium, wherein the colored portion contains at least one of a compound exhibiting fluorescence and a coloring material exhibiting fluorescence and has an interface at which incident light on the colored portion is reflected, the interface being between the outermost surface thereof and the surface of t:he recording medium.
54. A recording unit comprising an ink container containing the ink according to Claim 48 and a head portion for ejecting the ink.
55. The recording unit according to Claim 54, wherein the head portion has a construction that thermal energy is applied to the ink to eject the ink.
56. The recording unit according to Claim 54, wherein the ink container comprises polyolefin.
57. The recording unit according to Claim 54, wherein the ink container has an ink holding member therein.
58. The recording unit according to Claim 57, wherein the ink holding member is formed of at least one selected from the group consisting of polyurethane, cellulose, polyvinyl acetate and polyolefin.
59. The recording unit according to Claim 57, wherein the ink holding member comprises of a polymer formed by a condensation or polymerization reaction of organic compound.
60. The recording unit according to Claim 57, wherein the ink holding member has of a porous structure.
61. The recording unit according to Claim 60, wherein the ink holding member has a contact surface with the ink container.
62. The recording unit according to Claim 57, wherein the ink holding member has a multi-layer structure.
63. The recording unit according to Claim 62, wherein the direction of the multi-layer arrangement of the multi-layer structure is aligned in an ink discharging direction of the ink container.
64. The recording unit according to Claim 62, wherein the ink holding member has a contact surface with the ink container.
65. The recording unit according to Claim 57, wherein the ink holding member is composed of fiber flocculate.
66. The recording unit according to Claim 65, wherein the fiber flocculate is aligned in an ink discharging direction of the ink container.
67. The recording unit according to Claim 66, wherein the ink holding member has a contact surface with the ink container.
68. An ink cartridge comprising an ink container containing the ink according to any of Claims 1 to 48.
69. The ink cartridge according to Claim 68, wherein the ink container comprises polyolefin.
70. The ink cartridge according to Claim 68, wherein the ink container has an ink holding member therein.
71. The ink cartridge according to Claim 70, wherein the ink holding member comprises at least one selected from the group consisting of polyurethane, cellulose, polyvinyl acetate and polyolefin.
72. The ink cartridge according to Claim 70, wherein the ink holding member comprises a polymer formed by a condensation or polymerization reaction of organic compound.
73. The ink cartridge according to Claim 70, wherein the ink holding member has a porous structure.
74. The ink cartridge according to Claim 73, wherein the ink holding member has a contact surface with the ink container.
75. The ink cartridge according to Claim 70, wherein the ink holding member has a multi-layer structure.
76. The ink cartridge according to Claim 75, wherein the direction of the multi-layer arrangement of the multi-layer structure is aligned in an ink discharging direction of the ink container.
77. The ink cartridge according to Claim 76, wherein the ink holding member has a contact surface with the ink container.
78. The ink cartridge according to Claim 70, wherein the ink holding member is composed of fiber flocculate.
79. The ink cartridge according to Claim 78, wherein the fiber flocculate is aligned in an ink discharging direction of the ink container.
80. The ink cartridge according to Claim 79, wherein the ink holding member has a contact surface with the ink container.
81. An ink-jet recording apparatus comprising an ink container containing the ink according to Claim 48 and a head portion for ejecting the ink.
82. A method of enhancing fluorescence of a fluorescent colored portion of a recorded article comprising a recording medium and the colored portion provided thereon, wherein the colored portion is formed by an ink-jet recording process comprising the step of applying an ink to a recording medium by an ink-jet system, and an ink comprising (i) first and second organic compounds which are incompatible with each other;
(ii) at least one of a compound exhibiting fluorescence properties and a coloring material exhibiting fluorescence properties; and (iii) a liquid medium dissolving or dispersing the components (i) and (ii) therein is used as said ink.
83. A method of enhancing fluorescence of a fluorescent colored portion of a recorded article comprising a recording medium and the colored portion provided thereon, which comprises providing a reflecting interface for incident light on the colored portion from the outside between the outermost surface of the colored portion and the surface of the recording medium at the colored portion.
84. A method of elongating the life time of fluorescence of a fluorescent colored portion of a recorded article comprising a recording medium and the colored portion provided thereon, wherein the colored portion is formed by an ink-jet recording process comprising the step of applying an ink to a recording medium by an ink-jet system, and an ink comprising (i) first and second organic compounds which are incompatible with each other;
(ii) a compound having a vapor pressure not lower than that of diethyleneglycol ;
(iii) at leash one of a compound exhibiting fluorescence properties and a coloring material exhibiting fluorescence properties; and (iv) a liquid medium dissolving or dispersing the components (i), (ii) and (iii) therein is used as said ink.
CA 2354788 2000-08-08 2001-08-07 Ink, ink-jet recording process, recorded article, recording unit, ink cartridge, ink-jet recording apparatus, fluorescence enhancing method and method of elongating life time of fluorescence Expired - Lifetime CA2354788C (en)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP240314/2000 2000-08-08
JP240492/2000 2000-08-08
JP2000240492 2000-08-08
JP2000240314 2000-08-08
JP2000354169 2000-11-21
JP354185/2000 2000-11-21
JP2000354185 2000-11-21
JP354169/2000 2000-11-21
JP232931/2001 2001-07-31
JP2001232931 2001-07-31
JP232792/2001 2001-07-31
JP2001232792 2001-07-31

Publications (2)

Publication Number Publication Date
CA2354788A1 true CA2354788A1 (en) 2002-02-08
CA2354788C CA2354788C (en) 2010-02-02

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CA 2354788 Expired - Lifetime CA2354788C (en) 2000-08-08 2001-08-07 Ink, ink-jet recording process, recorded article, recording unit, ink cartridge, ink-jet recording apparatus, fluorescence enhancing method and method of elongating life time of fluorescence

Country Status (12)

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US (3) US6676734B2 (en)
EP (2) EP1862512B1 (en)
JP (1) JP2012126907A (en)
KR (1) KR100556651B1 (en)
CN (1) CN100393824C (en)
AT (1) ATE409731T1 (en)
AU (1) AU784608B2 (en)
CA (1) CA2354788C (en)
DE (1) DE60135958D1 (en)
DK (1) DK1180541T3 (en)
ES (1) ES2309023T3 (en)
SG (1) SG99936A1 (en)

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US20020047884A1 (en) 2002-04-25
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US6676734B2 (en) 2004-01-13
US7144105B2 (en) 2006-12-05
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US7220301B2 (en) 2007-05-22
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CA2354788C (en) 2010-02-02
US20040074419A1 (en) 2004-04-22
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ATE409731T1 (en) 2008-10-15

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