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Patent US6511534B1 successfully refreshed from Google Patents.
US6511534B1
Expired / Lapsed
US
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Ink, ink set, ink cartridge, printing unit, image printing apparatus, ink-jet printing method, and coloring material
Assignee: Canon Inc
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Filing: 2000-09-12
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Granted: 2003-01-28
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Expires: 2020-09-12
Abstract
Abstract An ink is provided which is capable of giving higher density of the printed image and has improved color developability with the light fastness and image stability maintained, and suppressing occurrence of bleeding in color image formation. The ink contains a capsuled coloring material constituted of a water-insoluble coloring material and an organic polymer covering the coloring material, the capsuled coloring material containing the organic polymer at a content ranging from 1% by weight to 20% by weight.
Inventors
- 👤 Shinya Mishina
- 👤 Shinichi Sato
- 👤 Mikio Sanada
- 👤 Koichi Osumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:13
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14016; B41J2002/14169; B41J2002/14475
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
43 words
An aqueous ink comprising a water insoluble coloring material encapsulated with an organic polymer, wherein the coloring material encapsulated with the organic polymer contains the organic polymer in an amount of from 1 to 20% by weight to the water insoluble coloring material.
Claim 2
Dependent Claim
43 words
An aqueous ink comprising a water insoluble coloring material encapsulated with an organic polymer, wherein the coloring material encapsulated with the organic polymer contains the organic polymer in an amount of from 1 to 20% by weight to the water insoluble coloring material.
Claim 3
Dependent Claim
23 words
An aqueous ink comprising a coloring material encapsulated with an organic polymer, wherein a part of the coloring material's surface is substantially exposed.
Claim 4
Dependent Claim
23 words
An aqueous ink comprising a coloring material encapsulated with an organic polymer, wherein a part of the coloring material's surface is substantially exposed.
Claim 5
Dependent Claim
46 words
An aqueous ink comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the encapsulated pigment or encapsulated carbon black contains the organic polymer in an amount of from 1 to 20% by weight to the pigment or the carbon black.
Claim 6
Dependent Claim
46 words
An aqueous ink comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the encapsulated pigment or encapsulated carbon black contains the organic polymer in an amount of from 1 to 20% by weight to the pigment or the carbon black.
Claim 7
Dependent Claim
34 words
An aqueous ink comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein a part of the self-dispersible pigment's surface or the self-dispersible carbon black's surface is substantially exposed.
Claim 8
Dependent Claim
34 words
An aqueous ink comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein a part of the self-dispersible pigment's surface or the self-dispersible carbon black's surface is substantially exposed.
Claim 9
Dependent Claim
60 words
An aqueous ink comprising a self-dispersible organic pigment or a self-dispersible carbon black encapsulated with an organic polymer, wherein the pigment or the carbon black encapsulated with an organic polymer has an absorption peak in an infrared absorption spectrum, the peak being assigned to a functional group attached to the surface of the self-dispersible pigment or the self-dispersible carbon black.
Claim 10
Dependent Claim
60 words
An aqueous ink comprising a self-dispersible organic pigment or a self-dispersible carbon black encapsulated with an organic polymer, wherein the pigment or the carbon black encapsulated with an organic polymer has an absorption peak in an infrared absorption spectrum, the peak being assigned to a functional group attached to the surface of the self-dispersible pigment or the self-dispersible carbon black.
Claim 11
Dependent Claim
62 words
An aqueous ink comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the self-dispersible organic pigment or the self-dispersible carbon black encapsulated with an organic polymer has an absorption peak in an infrared absorption spectrum, and no new peaks appear even when the organic polymer encapsulating the self-dispersible polymer or the self-dispersible carbon black is removed.
Claim 12
Dependent Claim
62 words
An aqueous ink comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the self-dispersible organic pigment or the self-dispersible carbon black encapsulated with an organic polymer has an absorption peak in an infrared absorption spectrum, and no new peaks appear even when the organic polymer encapsulating the self-dispersible polymer or the self-dispersible carbon black is removed.
Claim 13
Dependent Claim
48 words
The aqueous ink according to any one of claims 3 to 6 , wherein the self-dispersible organic pigment or the self-dispersible carbon black has at least one hydrophilic group at the surface thereof, and the hydrophilic group is bonded directly or through another atomic group to the surface.
Claim 14
Dependent Claim
53 words
The aqueous ink according to claim 7 , wherein the hydrophilic group is at least one selected from the group consisting of —COOM 1 , —SO 3 M 1 , and —PO 3 H(M 1 ) 2 , where M 1 is a hydrogen atom, an alkali metal, ammonium, or an organic ammonium.
Claim 15
Dependent Claim
42 words
The aqueous ink according to claim 7 , wherein the atomic group is selected from the group consisting of an alkylene group of 1-12 carbons, a substituted phenylene group, an unsubstituted phenylene group, a substituted naphthylene group, and an unsubstituted naphthylene group.
Claim 16
Dependent Claim
26 words
The aqueous ink according to claim 7 , wherein the hydrophilic group of the self-dispersible organic pigment or the self-dispersible carbon black is a carboxylic group.
Claim 17
Dependent Claim
23 words
The aqueous ink according to any one of claims 1 to 6 , wherein the organic polymer has a nonionic or anionic group.
Claim 18
Dependent Claim
22 words
The aqueous ink according to claim 1 , wherein the organic polymer has a number-average molecular weight of not lower than 2000.
Claim 19
Dependent Claim
41 words
The aqueous ink according to any one of claims 1 to 6 , wherein the coloring material, self-dispersible organic pigment or self-dispersible carbon black encapsulated with the organic polymer has an average particle diameter of from 50 nm to 180 nm.
Claim 20
Dependent Claim
89 words
The aqueous ink according to any one of claims 1 to 6 , wherein the ink contains at least one salt selected from the group consisting of (M 2 ) 2 SO 4 , CH 3 COO(M 2 ), Ph—COO(M 2 ), (M 2 )NO 3 , (M 2 )Cl, (M 2 )Br, (M 2 )I, (M 2 ) 2 SO 3 , and (M 2 ) 2 CO 3 , where M 2 is an alkali metal, ammonium, or an organic ammonium, and Ph is a phenyl group.
Claim 21
Dependent Claim
34 words
The aqueous ink according to claim 14 , wherein the ink contains the salt at a content ranging from 0.05% by weight to 10% by weight based on the total weight of the ink.
Claim 22
Dependent Claim
34 words
The aqueous ink according to claim 15 , wherein the ink contains the salt at a content ranging from 0.1% by weight to 5% by weight based on the total weight of the ink.
Claim 23
Dependent Claim
43 words
An ink set for color printing comprising inks of a black ink, a yellow ink, a magenta ink, and a cyan ink, wherein at least one of the inks is the aqueous ink stated in any one of claims 1 to 6 .
Claim 24
Dependent Claim
20 words
An ink cartridge, comprising an ink tank holding an ink stated in any one of claims 1 to 6 .
Claim 25
Dependent Claim
34 words
A printing unit having a holder for holding an ink, and a head for ejecting the ink, wherein the holder holds the ink set forth in any one of claims 1 to 6 .
Claim 26
Dependent Claim
27 words
An image printing apparatus having a container containing the ink according to any one of claims 1 to 6 , and a head for ejecting the ink.
Claim 27
Dependent Claim
34 words
An ink-jet printing method, comprising the steps of ejecting the ink according to any one of claims 1 to 6 toward a printing medium surface and attaching the ink onto the printing medium surface.
Claim 28
Dependent Claim
17 words
The ink-jet printing method according to claim 21 , wherein the ink is ejected by thermal energy.
Claim 29
Dependent Claim
17 words
The ink-jet printing method according to claim 21 , wherein the ink is ejected by mechanical energy.
Claim 30
Dependent Claim
52 words
A capsulated coloring material comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the capsulated coloring material has a peak in an infrared absorption spectrum, the peak being assigned to a functional group attached to the surface of the self-dispersible pigment or the self-dispersible carbon black.
Claim 31
Dependent Claim
52 words
A capsulated coloring material comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the capsulated coloring material has a peak in an infrared absorption spectrum, the peak being assigned to a functional group attached to the surface of the self-dispersible pigment or the self-dispersible carbon black.
Claim 32
Dependent Claim
55 words
A capsulated coloring material comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the capsulated coloring material has an absorption peak in an infrared absorption spectrum, and no new absorption peak appears even when the organic polymer encapsulating the self-dispersible organic pigment or the self-dispersible carbon black is removed.
Claim 33
Dependent Claim
55 words
A capsulated coloring material comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the capsulated coloring material has an absorption peak in an infrared absorption spectrum, and no new absorption peak appears even when the organic polymer encapsulating the self-dispersible organic pigment or the self-dispersible carbon black is removed.
References Cited (Backward Citations)
US4740796A
Cited
US4723129A
Cited
JPS5456847A
Cited
US4459600A
Cited
JPS5565269A
Cited
JPS5566976A
Cited
US4345262A
Cited
US4463359A
Cited
US4313124A
Cited
US4558333A
Cited
JPS59123670A
Cited
JPS59138461A
Cited
JPS6071260A
Cited
US4608577A
Cited
JPS6295366A
Cited
US4692188A
Cited
JPH01170672A
Cited
JP2783647B2
Cited
US5218376A
Cited
US5395434A
Cited
US5485188A
Cited
US5451251A
Cited
US5482545A
Cited
US5571313A
Cited
US5835116A
Cited
JPH09151342A
Cited
US5911815A
Cited
US5976233A
Cited
US5961704A
Cited
US6280513B1
Cited
US6203603B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-01-27 | 2006-07-29 | 2007-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-01-27 | 2010-07-29 | 2011-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-01-27 | 2014-07-29 | 2015-01-28 | $7700.00 | Window Closed / Lapsed |