US6460987B1
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US
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Ink set for ink-jet recording, ink-jet recording method, recording unit, ink-jet recording apparatus and bleeding reducing method
Assignee: Canon Inc
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Filing: 2000-10-04
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Granted: 2002-10-08
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Expires: 2020-10-04
Abstract
Abstract An ink set for use in an ink-jet recording method for recording a color image on a recording medium using four colors or more of ink, each ink includes a coloring material and a liquid medium, wherein any combination of two different inks causes aggregation of the coloring material by a chemical reaction on mutual contact on a recording medium.
Inventors
- 👤 Ryuji Katsuragi
- 👤 Koromo Shirota
- 👤 Teruo Ozaki
- 👤 Masahiko Kubota
- 👤 Hidehiko Kanda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:51
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/40; B; B41; B41M; B41M5/00; B41M5/0011; B41M5/0017; B41M7/00; B41M7/0018
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
86 words
An ink set for ink-jet recording of a color image on a recording medium, comprising: (1) a first ink comprising a monohydric alcohol and an anionic dye which aggregates on contact with a liquid containing a polyvalent metal salt; (2) a second ink comprising a polyvalent metal ion and an anionic dye which does not aggregate even when coexisting with the polyvalent metal salt; and (3) a third ink comprising an aqueous liquid, a pigment and an anionic dispersant for dispersing the pigment in the liquid.
Claim 2
Dependent Claim
86 words
An ink set for ink-jet recording of a color image on a recording medium, comprising: (1) a first ink comprising a monohydric alcohol and an anionic dye which aggregates on contact with a liquid containing a polyvalent metal salt; (2) a second ink comprising a polyvalent metal ion and an anionic dye which does not aggregate even when coexisting with the polyvalent metal salt; and (3) a third ink comprising an aqueous liquid, a pigment and an anionic dispersant for dispersing the pigment in the liquid.
Claim 3
Dependent Claim
110 words
An ink set for ink-jet recording of a color image on a recording medium, comprising: (1) a first ink comprising a self-dispersible carbon black with a cationic hydrophilic group bonded directly or through another atomic group to the surface thereof; (2) a second ink comprising a monohydric alcohol and an anionic dye which aggregates when the second ink contacts a liquid containing a polyvalent metal ion; (3) a third ink comprising a polyvalent metal ion and an anionic dye which does not aggregate even when coexisting with the polyvalent metal ion; and (4) a fourth ink comprising a pigment and an anionic dispersant for dispersing the pigment in the liquid.
Claim 4
Dependent Claim
110 words
An ink set for ink-jet recording of a color image on a recording medium, comprising: (1) a first ink comprising a self-dispersible carbon black with a cationic hydrophilic group bonded directly or through another atomic group to the surface thereof; (2) a second ink comprising a monohydric alcohol and an anionic dye which aggregates when the second ink contacts a liquid containing a polyvalent metal ion; (3) a third ink comprising a polyvalent metal ion and an anionic dye which does not aggregate even when coexisting with the polyvalent metal ion; and (4) a fourth ink comprising a pigment and an anionic dispersant for dispersing the pigment in the liquid.
Claim 5
Dependent Claim
100 words
An ink set for ink-jet recording of a color image on a recording medium, comprising: (1) a first ink comprising a self-dispersible carbon black with a cationic hydrophilic group bonded to the surface thereof directly or through another atomic group; (2) a second ink comprising an anionic dye which aggregates when the second ink contacts a liquid containing a polyvalent metal ion; (3) a third ink comprising a polyvalent metal salt and an anionic dye which does not aggregate even when coexisting with a polyvalent metal ion; and (4) a fourth ink comprising a cationic dye and a monohydric alcohol.
Claim 6
Dependent Claim
100 words
An ink set for ink-jet recording of a color image on a recording medium, comprising: (1) a first ink comprising a self-dispersible carbon black with a cationic hydrophilic group bonded to the surface thereof directly or through another atomic group; (2) a second ink comprising an anionic dye which aggregates when the second ink contacts a liquid containing a polyvalent metal ion; (3) a third ink comprising a polyvalent metal salt and an anionic dye which does not aggregate even when coexisting with a polyvalent metal ion; and (4) a fourth ink comprising a cationic dye and a monohydric alcohol.
Claim 7
Dependent Claim
48 words
The ink set according to claim 2 or 3 , wherein the cationic hydrophilic group in the first ink is one selected from the following formulas: wherein R denotes a C1 to C12 alkyl group, a substituted or unsubstituted phenyl group or a substituted or unsubstituted naphthyl group.
Claim 8
Dependent Claim
39 words
The ink set according to claim 2 or 3 , wherein the other atomic group is a C1 to C12 alkyl group, a phenylene group which may have a substituent or a naphthalene group which may have a substituent.
Claim 9
Dependent Claim
47 words
An ink-jet recording method for forming a multi-color image comprising a step of: ejecting three color inks by an ink-jet process, wherein the three inks respectively correspond to the first ink, the second ink and the third ink constituting the ink set according to claim 1 .
Claim 10
Dependent Claim
52 words
An ink-jet recording method for forming a multi-color image comprising a step of: ejecting four color inks by an ink-jet process, wherein the four inks respectively correspond to the first ink, the second ink, the third ink and the fourth ink constituting the ink set according to claim 2 or 3 .
Claim 11
Dependent Claim
21 words
The ink-jet recording method according to claim 6 , wherein the ink is ejected by applying thermal energy to the ink.
Claim 12
Dependent Claim
21 words
The ink-jet recording method according to claim 7 , wherein the ink is ejected by applying thermal energy to the ink.
Claim 13
Dependent Claim
22 words
The ink-jet recording method according to claim 6 , wherein the ink is ejected by application of mechanical energy to the ink.
Claim 14
Dependent Claim
22 words
The ink-jet recording method according to claim 7 , wherein the ink is ejected by application of mechanical energy to the ink.
Claim 15
Dependent Claim
50 words
A recording unit comprising: a first ink container, a second ink container and a third ink container respectively containing the first ink, the second ink and the third ink constituting the ink set according to claim 1 and an ink-jet head for ejecting the ink contained in each ink container.
Claim 16
Dependent Claim
58 words
A recording unit comprising: a first ink container, a second ink container, a third ink container and a fourth ink container containing the first ink, the second ink, the third ink and the fourth ink constituting the ink set according to claim 2 or 3 and an ink-jet head for ejecting the ink contained in each ink container.
Claim 17
Dependent Claim
51 words
An ink-jet recording apparatus comprising: a first ink container, a second ink container and a third ink container respectively containing the first ink, the second ink and the third ink constituting the ink set according to claim 1 and an ink-jet head for ejecting the ink contained in each ink container.
Claim 18
Dependent Claim
60 words
An ink-jet recording apparatus comprising: a first ink container, a second ink container, a third ink container and a fourth ink container respectively containing the first ink, the second ink, the third ink and the fourth ink constituting the ink set according to claim 2 or 3 and an ink-jet head for ejecting the ink contained in each ink container.
Claim 19
Dependent Claim
56 words
A method for alleviating bleeding in a multi-color image in which different color regions are adjacent to each other, wherein the images are formed with at least two color inks among three color inks respectively corresponding to the first ink, the second ink and the third ink constituting the ink set according to claim 1 .
Claim 20
Dependent Claim
59 words
A method for alleviating bleeding in a multi-color image in which different color regions are adjacent to each other, wherein the images are formed with at least two of four color inks respectively corresponding to the first ink, the second ink, the third ink and the fourth ink constituting the ink set according to claim 2 or 3 .
References Cited (Backward Citations)
JPS5565269A
Cited
US4804411A
Cited
US4864324A
Cited
US5059246A
Cited
US5135571A
Cited
US5074914A
Cited
US5139573A
Cited
US5216437A
Cited
US5135570A
Cited
US5123960A
Cited
US5141558A
Cited
US5190581A
Cited
US5220347A
Cited
US5248991A
Cited
US5329305A
Cited
US5296022A
Cited
US5258066A
Cited
US5427611A
Cited
JPH0657192A
Cited
US5198023A
Cited
EP0586079A1
Cited
US5640187A
Cited
US5734403A
Cited
US5451251A
Cited
US5696182A
Cited
US5614007A
Cited
US5700314A
Cited
US5540764A
Cited
US5781216A
Cited
US5658376A
Cited
US5792249A
Cited
US5536306A
Cited
US6074052A
Cited
US5900899A
Cited
US6084006A
Cited
US5976233A
Cited
US6247808B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-10-07 | 2006-04-08 | 2006-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-10-07 | 2010-04-08 | 2010-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-10-07 | 2014-04-08 | 2014-10-08 | $7700.00 | Window Closed / Lapsed |