Patent EP0791473A2 successfully refreshed from Google Patents.
EP0791473A2
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Ink jet recording ink and recording method
Assignee: Seiko Epson Corp
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Filing: 1997-02-21
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Granted: —
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Expires: 2017-02-21
Abstract
Abstract An ink jet recording method comprising the step of printing two solutions of a first solution and an ink composition is provided which, even in the case of printing on a recycled paper, can realize a good printed image, especially an image having no significant feathering and free from unevenness of printing and an image free from color bleeding. A first solution containing a polyvalent metal salt and/or a polyallylamine is used in combination with an ink composition containing an inorganic oxide colloid, and optionally an epoxy-containing compound. Specifically, the first solution is deposited onto a recording medium, and the ink composition is then deposited by ink jet printing to perform printing.
Inventors
- 👤 Kazuhide Kubota
- 👤 Kazuaki Watanabe
- 👤 Kiyohiko Takemoto
- 👤 Toshiyuki Miyabayshi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 18:48
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2107; B41M; B41M3/00; B41M3/001; C09D11/32; C09D11/322; C09D11/54; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
53 words
An ink jet recording method comprising the step of: depositing a reaction solution and an ink composition onto a recording medium to perform printing, wherein the reaction solution contains a polyvalent metal salt and/or a polyallylamine, wherein the ink composition comprises at least a colorant, an inorganic oxide colloid, and an aqueous solvent.
Claim 2
Dependent Claim
14 words
The method according to claim 1, wherein the ink composition further comprises a saccharide.
Claim 3
Dependent Claim
14 words
The method according to claim 1 or 2, wherein the colorant is a pigment.
Claim 4
Independent Claim
19 words
The method according to any one of claims 1 to 3, wherein the inorganic oxide colloid is colloidal silica.
Claim 5
Independent Claim
42 words
The method according to any one of claims 1 to 4, wherein the ink composition further comprises an epoxy-containing compound having a functional group reactive with an epoxy group and/or an epoxy-containing compound having no functional group reactive with an epoxy group.
Claim 6
Independent Claim
25 words
The method according to any one of claims 1 to 5, wherein the epoxy-containing compound is an epoxy-containing resin emulsion and/or a water-soluble epoxy compound.
Claim 7
Dependent Claim
56 words
The method according to claim 5, wherein the epoxy-containing resin emulsion comprises a copolymer comprising recurring units represented by the following formulae (I) and (II): wherein R 1 and R 3 independently represent H or CH 3 , R 2 represents a group containing at least one member selected from alkyl, hydroxyl, carboxyl, and sulfonic groups.
Claim 8
Dependent Claim
27 words
The method according to claim 6, wherein the water-soluble epoxy compound is represented by the following formula: wherein n is a natural number of 4 to 9.
Claim 9
Independent Claim
20 words
The method according to any one of claims 1 to 8, wherein the ink composition further comprises a resin emulsion.
Claim 10
Independent Claim
33 words
The method according to any one of claims 1 to 9, wherein the polyvalent metal salt is composed of nitric acid ion or a salt of carboxylic acid ion and polyvalent metal ion.
Claim 11
Dependent Claim
61 words
The ink jet recording method according to claim 10, wherein the carboxylic acid ion is derived from a saturated aliphatic monocarboxylic acid having 1 to 6 carbon atoms where a hydrogen atom(s) on the saturated aliphatic hydrocarbon residue of the monocarboxylic acid may be substituted by a hydroxyl group; or a carbocyclic monocarboxylic acid having a 6 to 10 carbon atoms.
Claim 12
Independent Claim
20 words
The method according to any one of claims 1 to 11, wherein the reaction solution further comprises an epoxy-curing agent.
Claim 13
Dependent Claim
14 words
The method according to claim 12, wherein the epoxy-curing agent is a water-soluble polyamine.
Claim 14
Independent Claim
31 words
The method according to any one of claims 1 to 13, wherein the reaction solution is deposited onto a recording medium followed by printing the ink composition on the recording medium.
Claim 15
Independent Claim
32 words
The method according to any one of claims 1 to 13, wherein the ink composition is deposited onto a recording medium followed by deposition of the reaction solution onto the recording medium.
Claim 16
Independent Claim
41 words
The method according to any one of claims 1 to 13, wherein the reaction solution and the ink composition are mixed together immediately before or immediately after ejection from an ink jet recording apparatus followed by printing on a recording medium.
Claim 17
Independent Claim
31 words
The method according to any one of claims 1 to 16, wherein the reaction solution is a color ink containing a yellow ink dye, a cyan dye, or a magenta dye.
Claim 18
Dependent Claim
16 words
A printed medium obtained by the method according to any one of claims 1 to 17.
References Cited (Backward Citations)
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