US4864324A
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Color image forming method and ink used therefor
Assignee: Canon Inc
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Filing: 1987-08-11
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Granted: 1989-09-05
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Expires: 2007-08-11
Abstract
Abstract There is disclosed a method for forming a color image by use of a plurality of color inks containing a cyan ink, wherein there is used an ink as the cyan ink which contains a metallophthalocyanine dye and/or a metal-free phthalocyanine dye and which contains free ions of divalent or higher metals at the concentration of 15 ppm or less, the methallophthalocyanine dye having a coordination metal selected from the metal atoms of the groups, IIA, IVB, VA, VIIA and VIII of the periodic Table of The Elements at the center of its skeleton, and the metal-free phthalocyanine dye having no coordination metal at the center of its skeleton, and also an ink to be used therefor.
Inventors
- 👤 Katsuhiro Shirota
- 👤 Tsuyoshi Eida
- 👤 Yuko Suga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; C09D11/40
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
106 words
A method for forming a color image by use of a plurality of color inks including a cyan ink, comprising the steps of forming at least a mixed color portion on a recording medium, wherein there is used an ink as the cyan ink which contains (i) 0.1-20 wt. % of a water-soluble metallophthalocyanine dye having a coordination metal selected from the group consisting of Ni, Co and V at the center of its skeleton, and which contains free ions of the metal at the concentration of 15 ppm or less, (ii) 5-95 wt. % of a water-soluble organic solvent; and (iii) 10-90 wt. % water.
Claim 2
Independent Claim
106 words
A method for forming a color image by use of a plurality of color inks including a cyan ink, comprising the steps of forming at least a mixed color portion on a recording medium, wherein there is used an ink as the cyan ink which contains (i) 0.1-20 wt. % of a water-soluble metallophthalocyanine dye having a coordination metal selected from the group consisting of Ni, Co and V at the center of its skeleton, and which contains free ions of the metal at the concentration of 15 ppm or less, (ii) 5-95 wt. % of a water-soluble organic solvent; and (iii) 10-90 wt. % water.
Claim 3
Dependent Claim
22 words
A method according to claim 1, wherein the concentration of the free metal ions in the ink is 3 ppm or less.
Claim 4
Dependent Claim
26 words
A method according to claim 1, wherein at least a magenta ink or a black ink is used as the ink other than the cyan ink.
Claim 5
Dependent Claim
14 words
A method according to claim 4, wherein the magenta ink contains a monoazo dye.
Claim 6
Dependent Claim
40 words
A method according to claim 3, wherein the magenta ink contains a dye represented by the following formula: Q.sub.1 -N=N-Q.sub.2 wherein Q 1 represents a substituted or unsubstituted phenyl or naphthyl group and Q 2 represents a substituted naphthyl group.
Claim 7
Dependent Claim
48 words
A method according to claim 3, wherein the black ink contains a dye represented by the following formula: Q.sub.3 -N=N-Q.sub.4 -N=N-Q.sub.5 wherein Q 3 represents a substituted phenyl or naphthyl group, Q 4 represents a substituted phenylene or naphthylene group and Q 5 represents a substituted naphthyl group.
Claim 8
Dependent Claim
164 words
A method according to claim 1, wherein the cyan ink includes at least one phthalocyanine dye represented by the following formula: ##STR4## wherein [ph] represents a phthalocyanine skeleton which has a coordination metal atom selected from the group consisting of Ni, Co and V; Q represents --SO 2 OR 1 or --SO 2 NR 2 R 3 ; X represents an alkali metal or NH 4 ; a and b independently represent an integer of 0 to 4, provided that the relationship of 2≦a+b≦4 is satisfied; R 1 represents a straight or cyclic alkyl or aralkyl group which may have a branch; R 2 and R 3 independently represent a --(CH 2 CH 2 O) n --R 4 , --(CH 2 CHOH) n --R 4 group, a straight or cyclic alkyl or aralkyl group which may have a branch, or an amino acid residue; n represents an integer of 0 to 12; and R 4 represents H, CH 3 , or CH 2 OH.
Claim 9
Dependent Claim
18 words
A method according to claim 1, wherein image formation is effected according to the ink jet recording system.
Claim 10
Dependent Claim
59 words
An ink comprising a dye and a liquid medium for dissolving or dispersing the dye therein, wherein said dye is a metallophthalocyanine dye having a coordination metal selected from the group consisting of Ni, Co and V at the center of its skeleton and which contains free ions of the metal at the concentration of 15 ppm or less.
Claim 11
Dependent Claim
59 words
An ink comprising a dye and a liquid medium for dissolving or dispersing the dye therein, wherein said dye is a metallophthalocyanine dye having a coordination metal selected from the group consisting of Ni, Co and V at the center of its skeleton and which contains free ions of the metal at the concentration of 15 ppm or less.
Claim 12
Dependent Claim
22 words
An ink according to claim 9, wherein the concentration of the free metal ions in the ink is 3 ppm or less.
Claim 13
Dependent Claim
26 words
An ink according to claim 9, wherein at least a magenta ink or a black ink is used as the ink other than the cyan ink.
Claim 14
Dependent Claim
14 words
An ink according to claim 11, wherein the magenta ink contains a monoazo dye.
Claim 15
Dependent Claim
40 words
An ink according to claim 11, wherein the magenta ink contains a dye represented by the following formula: Q.sub.1 -N=N-Q.sub.2 wherein Q 1 represents a substituted or unsubstituted phenyl or naphthyl group and Q 2 represents a substituted naphthyl group.
Claim 16
Dependent Claim
48 words
An ink according to claim 11, wherein the black ink contains a dye represented by the following formula: Q.sub.3 -N=N-Q.sub.4 -N=N-Q.sub.5 wherein Q 3 represents a substituted phenyl or naphthyl group, Q 4 represents a substituted phenylene or naphthylene group and Q 5 represents a substituted naphthyl group.
Claim 17
Dependent Claim
13 words
An ink according to claim 9, wherein the ink is an aqueous ink.
Claim 18
Dependent Claim
173 words
An ink according to claim 9, wherein said phthalocyanine dye includes at least one phthalocyanine dye represented by the following formula: ##STR5## where [ph] represents a phthalocyanine skeleton which has a coordination metal atom selected from the group consisting of Ni, Co and V; Q represents --SO 2 OR 1 or --SO 2 NR 2 R 3 ; X represents an alkali metal or NH 4 ; a and b independently represent an integer of 0 to 4, provided that the relationship of 2≦a+b≦4 is satisfied; R 1 represents a straight or cyclic alkyl or aralkyl group which may have a branch; R 2 and R 3 independently represent a --(CH 2 CH 2 O) n --R 4 , --(CH 2 CHOH) n --R 4 or --(CHCH 3 CH 2 O) n --R 4 group, a straight or cyclic alkyl or aralkyl group which may have a branch, or an amino acid residue; n represents an integer of 0 to 12; and R 4 represents H, CH 3 , or CH 2 OH.
Claim 19
Dependent Claim
27 words
An ink according to claim 9, wherein the content of said dye is within the range of from 0.1 to 20 wt.% of the total ink weight.
Claim 20
Independent Claim
111 words
A method for forming a color image by use of a plurality of color inks including a cyan ink, comprising forming at least a mixed color portion on a recording medium, wherein at least one of the color inks contains a UV-ray absorber and there is used an ink as the cyan ink which contains (i) 0.1-20 wt.% of a water-soluble metallophthalocyanine dye having a coordination metal selected from the group consisting of Ni, Co and V at the center of its skeleton which contains free ions of the metal at the concentration of 15 ppm or less; (ii) 5-95 wt.% of a water-soluble organic solvent; and (iii) 10-90 wt.% water.
Claim 21
Independent Claim
111 words
A method for forming a color image by use of a plurality of color inks including a cyan ink, comprising forming at least a mixed color portion on a recording medium, wherein at least one of the color inks contains a UV-ray absorber and there is used an ink as the cyan ink which contains (i) 0.1-20 wt.% of a water-soluble metallophthalocyanine dye having a coordination metal selected from the group consisting of Ni, Co and V at the center of its skeleton which contains free ions of the metal at the concentration of 15 ppm or less; (ii) 5-95 wt.% of a water-soluble organic solvent; and (iii) 10-90 wt.% water.
Claim 22
Dependent Claim
22 words
A method according to claim 18, wherein the concentration of the free metal ions in the ink is 3 ppm or less.
Claim 23
Dependent Claim
26 words
A method according to claim 18, wherein at least a magenta ink or a black ink is used as the ink other than the cyan ink.
Claim 24
Dependent Claim
14 words
A method according to claim 20, wherein the magenta ink contains a monoazo dye.
Claim 25
Dependent Claim
40 words
A method according to claim 20, wherein the magenta ink contains a dye represented by the following formula: Q.sub.1 -N=N-Q.sub.2 wherein Q 1 represents a substituted or unsubstituted phenyl or naphthyl group and Q 2 represents a substituted naphthyl group.
Claim 26
Dependent Claim
48 words
A method according to claim 20, wherein the black ink contains a dye represented by the following formula: Q.sub.3 -N=N-Q.sub.4 -N=N-Q.sub.5 wherein Q 3 represents a substituted phenyl or naphthyl group, Q 4 represents a substituted phenylene or naphthylene group and Q 5 represents a substituted naphthyl group.
Claim 27
Dependent Claim
164 words
A method according to claim 18, wherein the cyan ink includes at least one phthalocyanine dye represented by the following formula: ##STR6## wherein [ph] represents a phthalocyanine skeleton which has a coordination metal atom selected from the group consisting of Ni, Co and V; Q represents --SO 2 OR 1 or --SO 2 NR 2 R 3 ; X represents an alkali metal or NH 4 ; a and b independently represent an integer of 0 to 4, provided that the relationship of 2≦a+b≦4 is satisfied; R 1 represents a straight or cyclic alkyl or aralkyl group which may have a branch; R 2 and R 3 independently represent a --(CH 2 CH 2 O) n --R 4 , --(CH 2 CHOH) n --R 4 group, a straight or cyclic alkyl or aralkyl group which may have a branch, or an amino acid residue; n represents an integer of 0 to 12; and R 4 represents H, CH 3 , or CH 2 OH.
Claim 28
Dependent Claim
16 words
A method according to claim 18, wherein said UV-ray absorber is soluble in the ink medium.
Claim 29
Dependent Claim
28 words
A method according to claim 18, wherein the content of said UV-ray absorber is within the range of from 0.1 to 5 wt.% of the total ink weight.
Claim 30
Independent Claim
120 words
A method for forming a color image by use of a plurality of color inks including a cyan ink, comprising the steps of forming at least a mixed color portion on a recording medium, wherein the color image is coated with a transparent protective member containing at least a UV-ray absorber and there is used an ink as the cyan ink which contains (i) 0.1-20 wt.% of a water-soluble metallophthalocyanine dye having a coordination metal selected from the group consisting of Ni, Co and V at the center of its skeleton and which contains free ions of the metal at the concentration of 15 ppm or less; (ii) 5-95 wt.% of a water-soluble organic solvent; and (iii) 10-90 wt.% water.
Claim 31
Independent Claim
120 words
A method for forming a color image by use of a plurality of color inks including a cyan ink, comprising the steps of forming at least a mixed color portion on a recording medium, wherein the color image is coated with a transparent protective member containing at least a UV-ray absorber and there is used an ink as the cyan ink which contains (i) 0.1-20 wt.% of a water-soluble metallophthalocyanine dye having a coordination metal selected from the group consisting of Ni, Co and V at the center of its skeleton and which contains free ions of the metal at the concentration of 15 ppm or less; (ii) 5-95 wt.% of a water-soluble organic solvent; and (iii) 10-90 wt.% water.
Claim 32
Dependent Claim
22 words
A method according to claim 27, wherein the concentration of the free metal ions in the ink is 3 ppm or less.
Claim 33
Dependent Claim
26 words
A method according to claim 27, wherein at least a magenta ink or a black ink is used as the ink other than the cyan ink.
Claim 34
Dependent Claim
14 words
A method according to claim 29, wherein the magenta ink contains a monoazo dye.
Claim 35
Dependent Claim
40 words
A method according to claim 29, wherein the magenta ink contains a dye represented by the following formula: Q.sub.1 -N=N-Q.sub.2 where Q 1 represents a substituted or unsubstituted phenyl or naphthyl group and Q 2 represents a substituted naphthyl group.
Claim 36
Dependent Claim
48 words
A method according to claim 29, wherein the black ink contains a dye represented by the following formula: Q.sub.3 -N=N-Q.sub.4 -N=N-Q.sub.5 wherein Q 3 represents a substituted phenyl or naphthyl group, Q 4 represents a substituted phenylene or naphthylene group and Q 5 represents a substituted naphthyl group.
Claim 37
Dependent Claim
173 words
A method according to claim 29, wherein the cyan ink includes at least one phthalocyanine dye represented by the following formula: ##STR7## wherein [ph] represents a phthalocyanine skeleton which has a coordination metal atom selected from the group consisting of Ni, Co and V; Q represents --SO 2 OR 1 or --SO 2 NR 2 R 3 ; X represents an alkali metal or NH 4 ; a and b independently represent an integer of 0 to 4, provided that the relationship of 2≦a+b≦4 is satisfied; R 1 represents a straight or cyclic alkyl or aralkyl group which may have a branch; R 2 and R 3 independently represent a -(CH 2 CH 2 O) n -R 4 , -(CH 2 CHOH) n -R 4 or --(CHCH 3 CH 2 O) n -R 4 group, a straight or cyclic alkyl or aralkyl group which may have a branch, or an amino acid residue; n represents an integer of 0 to 12; and R 4 represents H, CH 3 , or CH 2 OH.
Claim 38
Dependent Claim
34 words
A method according to claim 1, wherein said color image is formed using an ink-jet recording system wherein droplets of recording liquid are ejected from a fine opening by the application of heat energy.
Claim 39
Dependent Claim
34 words
A method according to claim 18, wherein said color image is formed using an ink-jet recording system wherein droplets of recording liquid are ejected from a fine opening by the application of heat energy.
Claim 40
Dependent Claim
34 words
A method according to claim 27, wherein said color image is formed using an ink-jet recording system wherein droplets of recording liquid are ejected from a fine opening by the application of heat energy.
Claim 41
Dependent Claim
14 words
A method according to claim 1, wherein said recording medium is a coated paper.
Claim 42
Dependent Claim
14 words
A method according to claim 18, wherein said recording medium is a coated paper.
Claim 43
Dependent Claim
14 words
A method according to claim 27, wherein said recording medium is a coated paper.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-04 | 2001-03-06 | 2001-09-05 | $7700.00 | Window Closed / Lapsed |