Patent EP0724968A1 successfully refreshed from Google Patents.
EP0724968A1
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Image forming method employing ink-jet recording system
Assignee: Canon Inc
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Filing: 1996-01-31
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Granted: —
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Expires: 2016-01-31
Abstract
Abstract Provided is an image forming method that forms an image using an ink and a liquid composition by a process comprising the steps of; (A) imparting a black ink to an image forming area of a recording medium by ink-jet recording; said black ink comprising a water-soluble black dye and a black pigment as coloring matters, and a liquid medium in which the coloring matters are dissolved or dispersed; and (B) imparting a liquid composition different from said ink to said image forming area.
Inventors
- 👤 Shinichi Sato
- 👤 Shinichi Tochihara
- 👤 Yutaka Kurabayashi
- 👤 Katsuhiko Takahashi
- 👤 Masashi Ogasawara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 20:14
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2107; B41J2/2114; B41M; B41M5/00; B41M5/0011; B41M5/0017; B41M5/0023; B41M7/00; B41M7/0018; B41J2/135; B41J2/165; B41J2/16505; B41J2/16508
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
82 words
An image forming method that forms an image using an ink and a liquid composition by a process comprising the steps of; (A) imparting a black ink to an image forming area of a recording medium by ink-jet recording; said black ink comprising a water-soluble black dye and a black pigment as coloring matters, and a liquid medium in which the coloring matters are dissolved or dispersed; and (B) imparting a liquid composition different from said ink to said image forming area.
Claim 2
Dependent Claim
16 words
The image forming method according to claim 1, wherein said liquid composition contains no coloring matter.
Claim 3
Dependent Claim
20 words
The image forming method according to claim 1, wherein said water-soluble black dye is a dye having an anionic group.
Claim 4
Dependent Claim
18 words
The image forming method according to claim 1, wherein said liquid composition contains at least one cationic substance.
Claim 5
Dependent Claim
14 words
The image forming method according to claim 1, wherein said liquid composition contains polyallylamine.
Claim 6
Dependent Claim
20 words
The image forming method according to claim 1, wherein said liquid composition contains a cationic surface active agent and polyallylamine.
Claim 7
Dependent Claim
18 words
The image forming method according to claim 1, wherein said step (B) is carried out by ink-jet recording.
Claim 8
Dependent Claim
32 words
The image forming method according to claim 1, wherein said water-soluble black dye and said black pigment in said ink are in a proportion ranging from 1:1 to 5:1 in weight ratio.
Claim 9
Dependent Claim
19 words
The image forming method according to claim 1, wherein said step (B) is carried out before the step (A).
Claim 10
Dependent Claim
19 words
The image forming method according to claim 1, wherein said step (B) is carried out after the step (A).
Claim 11
Dependent Claim
25 words
The image forming method according to claim 1, wherein said step (A), said step (B) and said step (A) are carried out in this order.
Claim 12
Dependent Claim
29 words
A recorded article on which black images are formed on a recording medium by means of an image forming method according to any one of claims 1 to 11.
References Cited (Backward Citations)
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