EP0663299A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Liquid composition and ink set, and image-forming process and apparatus using the same
Assignee: Canon Inc
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Filing: 1994-12-19
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Granted: —
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Expires: 2014-12-19
Abstract
Abstract Disclosed herein is a colorless or pale-colored liquid composition comprising a cationic substance, wherein the liquid composition contains in combination a cationic substance and a nonionic polymeric substance. A process of forming an image, which comprises the steps of (A) applying the liquid composition to at least an image-forming region of a recording medium and (B) applying an ink comprising an anionic to the recording medium by an ink-jet system. An image forming apparatus comprising the first recording unit equipped with a container part containing the liquid composition and an ejection means therefore, and the second recording unit equipped with container parts separately containing inks comprising an anionic compound and ejection means therefor.
Inventors
- 👤 Yutaka C/O Canon Kabushiki Kaisha Kurabayashi
- 👤 Keiichi C/O Canon Kabushiki Kaisha Murai
- 👤 Katsuhiro C/O Canon Kabushiki Kaisha Shirota
- 👤 Katsuhiko C/O Canon Kabushiki Kaisha Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 20:10
CPC Classifications
B; B41; B41M; B41M5/00; C; C09; C09D; C09D11/00; C09D11/30; C09D11/40; B41M5/0011; B41M5/0017; B41M7/00; B41M7/0018; Y; Y10; Y10S; Y10S260/00; Y10S260/38
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
22 words
A liquid composition comprising a cationic substance, wherein the liquid composition contains in combination a cationic substance and a nonionic polymeric substance.
Claim 2
Dependent Claim
37 words
A liquid composition comprising a cationic substance, wherein the liquid composition contains in combination a cationic oligomer having a molecular weight distribution in which a peak exists in a molecular weight region, and a nonionic polymeric substance.
Claim 3
Dependent Claim
32 words
The liquid composition according to Claim 1, wherein the cationic substance has a molecular weight of at most 1,000 and the nonionic polymeric substance has a molecular weight of at least 2,000.
Claim 4
Dependent Claim
39 words
The liquid composition according to Claim 2, wherein the peak in the molecular weight distribution exists in a molecular weight region of not higher than 1,000, and the nonionic polymeric substance has a molecular weight of at least 2,000.
Claim 5
Dependent Claim
31 words
The liquid composition according to Claim 1, wherein the cationic substance and the nonionic polymeric substance are contained in a range of from 0.05 to 20 % by weight in total.
Claim 6
Dependent Claim
31 words
The liquid composition according to Claim 2, wherein the cationic oligomer and the nonionic polymeric substance are contained in a range of from 0.05 to 20 % by weight in total.
Claim 7
Dependent Claim
14 words
The liquid composition according to Claim 1, wherein the cationic substance is a surfactant.
Claim 8
Dependent Claim
12 words
The liquid composition according to Claim 2, further comprising a cationic surfactant.
Claim 9
Dependent Claim
29 words
The liquid composition according to Claim 1, wherein the mixing ratio of the cationic substance to the nonionic polymeric substance is within a range of from 10:1 to 1:10.
Claim 10
Dependent Claim
29 words
The liquid composition according to Claim 2, wherein the mixing ratio of the cationic oligomer to the nonionic polymeric substance is within a range of from 10:1 to 1:10.
Claim 11
Dependent Claim
28 words
A liquid composition comprising a cationic substance, wherein the cationic substance has a molecular weight distribution in which at least one peak exists in two molecular weight regions.
Claim 12
Dependent Claim
36 words
The liquid composition according to Claim 11, wherein at least one peak exists in two molecular weight distribution regions of not higher than 1,000 and of not lower than 1,500 when measured by means of GPC.
Claim 13
Dependent Claim
24 words
The liquid composition according to Claim 11, wherein the cationic substance is contained in a range of from 0.05 to 20 % by weight.
Claim 14
Dependent Claim
18 words
The liquid composition according to Claim 11, wherein the cationic substance is composed of at least two compounds.
Claim 15
Dependent Claim
18 words
The liquid composition according to Claim 11, wherein at least one of the cationic substance is a surfactant.
Claim 16
Dependent Claim
68 words
The liquid composition according to Claim 12, wherein the mixing ratio of the cationic substance having a molecular weight distribution in which at least one peak exists in two molecular weight regions of not higher than 1,000 to the cationic polymeric substance in which at least one peak exists in the molecular weight region of not lower than 1,500 is within a range of from 10:1 to 1:10.
Claim 17
Dependent Claim
32 words
An ink set comprising in combination the liquid composition according to any one of Claims 1 to 16 and at least one of yellow, magenta, cyan, black, red, blue and green inks.
Claim 18
Dependent Claim
27 words
An ink set comprising in combination the liquid composition according to any one of Claims 1 to 16 and three inks of yellow, magenta and cyan colors.
Claim 19
Dependent Claim
28 words
An ink set comprising in combination the liquid composition according to any one of Claims 1 to 16 and four inks of yellow, magenta, cyan and black colors.
Claim 20
Dependent Claim
20 words
The ink set according to any one of Claims 17 to 19, wherein the inks contain further an anionic compound.
Claim 21
Dependent Claim
24 words
The ink set according to any one of Claims 17 to 19, wherein the inks contain further a water-soluble dye having an anionic group.
Claim 22
Dependent Claim
23 words
The ink set according to any one of Claims 17 to 19, wherein the inks contain further a pigment and an anionic compound.
Claim 23
Dependent Claim
23 words
The ink set according to Claim 20, wherein the anionic compound is a polymeric substance having a molecular weight of at least 1,000.
Claim 24
Dependent Claim
14 words
The ink set according to Claim 20, wherein the anionic compound is a surfactant.
Claim 25
Dependent Claim
52 words
A process of forming an image, which comprises the steps of (A) applying the liquid composition according to any one of Claims 1 to 16 to at least an image-forming region of a recording medium and (B) applying an ink comprising an anionic compound to the recording medium by an ink-jet system.
Claim 26
Dependent Claim
17 words
The image-forming process according to Claim 25, wherein the ink-jet system is an On-Demand type ink-jet system.
Claim 27
Dependent Claim
21 words
The image-forming process according to Claim 25, wherein the liquid composition is applied to the recording medium by an ink-jet system.
Claim 28
Dependent Claim
29 words
The image-forming process according to any one of Claims 25 to 27, wherein the ink-jet system is an ink-jet system in which thermal energy is applied to the ink.
Claim 29
Dependent Claim
18 words
The image-forming process according to Claim 25, wherein the step (A) is conducted prior to the step (B).
Claim 30
Dependent Claim
18 words
The image-forming process according to Claim 25, wherein the step (A) is conducted subsequently to the step (B).
Claim 31
Dependent Claim
21 words
An image forming apparatus comprising the ink set according to any one of Claims 17 to 24 and an ink-jet means.
Claim 32
Dependent Claim
52 words
An image forming apparatus comprising the first recording unit equipped with a container part containing the liquid composition according to any one of Claims 1 to 16 and an ejection means therefor, and the second recording unit equipped with container parts separately containing inks comprising an anionic compound and ejection means therefor.
Claim 33
Dependent Claim
16 words
The image forming apparatus according to Claim 32, wherein the ejection means is an ink-jet means.
Claim 34
Dependent Claim
32 words
The image forming apparatus according to Claim 31 or 33, wherein the ink-jet means is a means in which thermal energy is applied to the ink to form droplets of the ink.
Claim 35
Dependent Claim
18 words
Use of the liquid composition according to any one of Claims 1 to 10 for formation of images.
Claim 36
Dependent Claim
17 words
Use of the liquid composition according to any one of Claims 1 to 10 for ink-jet recording.
Claim 37
Dependent Claim
18 words
Use of the ink set according to any one of Claims 17 to 24 in image forming apparatus.
Claim 38
Dependent Claim
18 words
Use of the ink set according to any one of Claims 17 to 24 in ink-jet recording apparatus.
References Cited (Backward Citations)
No citation records indexed.
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