Patent US5952401A successfully refreshed from Google Patents.
US5952401A
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US
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Ink for use in ink-jet recording
Assignee: Canon Inc
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Filing: 1997-02-18
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Granted: 1999-09-14
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Expires: 2017-02-18
Abstract
Abstract Disclosed herein is an ink comprising a pigment, a water-soluble resin, a water-soluble monomer to be set by application of energy and a photopolymerization initiator in an aqueous liquid medium.
Inventors
- 👤 Makiko Kimura
- 👤 Hiroshi Sugitani
- 👤 Masami Ikeda
- 👤 Kiyomi Aono
- 👤 Hiromichi Noguchi
- 👤 Yoshie Nakata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:49
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/322; C09D11/02; C09D11/10; C09D11/101
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
An ink for use in ink-jet recording, comprising an aqueous medium, a coloring material containing a pigment and a dye, a water-soluble resin having a weight average molecular weight in a range of from 3,000 to 30,000 for dispersing the pigment, a water-soluble monomer to be set by application of energy selected from the group consisting of radical-polymerizable acrylic esters of polyols with (meth)acrylic acid and epoxyacrylic esters of polyols with (meth)acrylic acid in an amount ranging from 1% to 10% by weight based on the total weight of the ink, and a photopolymerization initiator, wherein the viscosity of the ink is adjusted to 10 cP or lower, and wherein the weight ratio of the pigment to the dye is in a range of 8:2 to 2:8.
Claim 2
Dependent Claim
127 words
An ink for use in ink-jet recording, comprising an aqueous medium, a coloring material containing a pigment and a dye, a water-soluble resin having a weight average molecular weight in a range of from 3,000 to 30,000 for dispersing the pigment, a water-soluble monomer to be set by application of energy selected from the group consisting of radical-polymerizable acrylic esters of polyols with (meth)acrylic acid and epoxyacrylic esters of polyols with (meth)acrylic acid in an amount ranging from 1% to 10% by weight based on the total weight of the ink, and a photopolymerization initiator, wherein the viscosity of the ink is adjusted to 10 cP or lower, and wherein the weight ratio of the pigment to the dye is in a range of 8:2 to 2:8.
Claim 3
Dependent Claim
10 words
The ink according to claim 1, further comprising a dye.
Claim 4
Dependent Claim
14 words
The ink according to claim 1, wherein the pigment is in a dispersed state.
Claim 5
Dependent Claim
16 words
The ink according to claim 1, wherein the energy is ultraviolet light, heat or electron rays.
Claim 6
Dependent Claim
22 words
The ink according to claim 1, wherein the pH of the ink is adjusted within a range of from 7 to 10.
Claim 7
Dependent Claim
27 words
The ink according to claim 1, wherein water is contained in an amount of at least 50% by weight based on the total weight of the ink.
Claim 8
Dependent Claim
57 words
The ink according to claim 1, wherein the water-soluble resin is selected from the group consisting of styrene-acrylic acid copolymers, styrene-acrylic acid-alkyl acrylate copolymers, styrene-maleic acid copolymers, styrene maleic acid-alkyl acrylate copolymers, styrene-methacrylic acid copolymers, styrene-methacrylic acid-alkyl acrylate copolymers, styrene-maleic half ester copolymers, vinylnaphthalene-acrylic acid copolymers, vinylnaphthalene-maleic acid copolymers, styrene-maleic anhydride-maleic half ester copolymers and salts thereof.
Claim 9
Dependent Claim
25 words
The ink according to claim 1, wherein the weight ratio of the pigment to the dye is in a range of from 7:3 to 3:7.
Claim 10
Dependent Claim
83 words
An aqueous ink-jet ink comprising: a coloring material containing a pigment and a dye, a water-soluble resin for dispersing the pigment, a water-soluble monomer to be polymerized by applying energy, the water-soluble monomer being selected from the group consisting of radical-polymerizable acrylic esters of polyols with (meth)acrylic acid and epoxyacrylic esters of polyols with (meth)acrylic acid, and a photopolymerization initiator for polymerizing the water-soluble monomer, wherein the weight ratio of the pigment to the dye is in a range of 8:2 to 2:8.
Claim 11
Dependent Claim
83 words
An aqueous ink-jet ink comprising: a coloring material containing a pigment and a dye, a water-soluble resin for dispersing the pigment, a water-soluble monomer to be polymerized by applying energy, the water-soluble monomer being selected from the group consisting of radical-polymerizable acrylic esters of polyols with (meth)acrylic acid and epoxyacrylic esters of polyols with (meth)acrylic acid, and a photopolymerization initiator for polymerizing the water-soluble monomer, wherein the weight ratio of the pigment to the dye is in a range of 8:2 to 2:8.
Claim 12
Dependent Claim
27 words
The aqueous ink-jet ink according to claim 9, wherein the weight ratio of the pigment to the dye is in a range of from 7:3 to 3:7.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-09-13 | 2003-03-15 | 2003-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-13 | 2007-03-15 | 2007-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-13 | 2011-03-15 | 2011-09-14 | $7700.00 | Window Closed / Lapsed |