US20020005884A1
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US
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Ink set and ink cartridge and recording method, recording material and recording apparatus
Assignee: Seiko Epson Corp
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Filing: 2001-03-05
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Granted: —
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Expires: 2021-03-05
Abstract
Abstract The present invention provides an ink set and ink cartridge which allow color printing of an image having an excellent color reproduction with a plurality of inks using an ink jet recording apparatus and provide a good discoloration resistance, color developability and water fastness, a recording method using the ink set and ink cartridge, a recorded material thus obtained, and a recording apparatus therefor. The ink set according to the invention is an “ink set comprising a dye ink and a pigment ink in combination, characterized in that there are contained a plurality of inks having the same hue but different densities for at least one hue and at least one of the inks having a low density comprises a pigment incorporated therein as a colorant”. Thus, the use of an “ink having a low density (light-colored ink)” comprising a pigment incorporated therein as a colorant makes it possible to provide improvements in properties such as light fastness and water fastness in a low image density range (highlight range) in particular. Further, the ink cartridge, recording method, recorded material thus obtained, and recording apparatus therefor according to the invention are characterized by the use of the foregoing ink set.
Inventors
- 👤 Hiroyuki Onishi
- 👤 Yuko Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:29
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/40
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
54 words
1 . An ink set comprising a dye ink and a pigment ink in combination, wherein there are contained a plurality of inks having the same hue but different densities for at least one hue and at least one of the inks having a low density comprises a pigment incorporated therein as a colorant.
Claim 2
Dependent Claim
54 words
1 . An ink set comprising a dye ink and a pigment ink in combination, wherein there are contained a plurality of inks having the same hue but different densities for at least one hue and at least one of the inks having a low density comprises a pigment incorporated therein as a colorant.
Claim 3
Dependent Claim
65 words
2 . The ink set according to claim 1 , wherein said plurality of inks having the same hue but different densities are magenta ink, at least a light-colored magenta ink among said plurality of magenta inks comprises a pigment incorporated therein as a colorant and the other inks having hue different from the magenta inks each comprise a dye incorporated therein as a colorant.
Claim 4
Dependent Claim
25 words
3 . The ink set according to claim 2 , wherein said light-colored magenta ink comprises C.I. pigment red 122 incorporated therein as a colorant.
Claim 5
Dependent Claim
51 words
4 . The ink set according to claim 2 , wherein said light-colored magenta ink comprises C.I. pigment red 122 incorporated therein as a colorant, the colorants for yellow ink are C.I. direct yellow 132 and/or C.I. direct yellow 86, and the colorant for cyan ink is C.I. direct blue 199.
Claim 6
Dependent Claim
24 words
5 . The ink set according to claim 4 , wherein said cyan ink comprises a dark-colored cyan ink and a Iight-colored cyan ink.
Claim 7
Dependent Claim
53 words
6 . The ink set according to claim 1 , wherein said plurality of inks having the same hue but different densities are magenta inks, and said magenta ink comprises a dark-colored magenta ink and a light-colored magenta ink and said two magenta inks each comprise a pigment incorporated therein as a colorant.
Claim 8
Dependent Claim
65 words
7 . The ink set according to claim 1 , wherein said plurality of inks having the same hue but different densities are cyan inks, at least a light-colored cyan ink among said plurality of cyan inks comprises a pigment incorporated therein as a colorant and the other inks having hue different from the cyan inks each comprise a dye incorporated therein as a colorant.
Claim 9
Dependent Claim
24 words
8 . The ink set according to claim 7 , wherein said cyan ink comprises C.I. pigment blue 15:3 incorporated therein as a colorant.
Claim 10
Dependent Claim
27 words
9 . The ink set according to claim 7 or 8 , wherein said light-colored cyan ink comprises a pigment and a dye incorporated therein as colorants.
Claim 11
Dependent Claim
37 words
10 . The ink set according to any one of claims 7 to 9 , which is an ink set for recording on an ink jet recording medium having a porous ink-receiving layer provided on a substrate.
Claim 12
Dependent Claim
72 words
11 . The ink set according to claim 1 , wherein said plurality of inks having the same hue but different densities are a magenta ink and a cyan ink, at least a light-colored magenta ink and a light-colored cyan ink among said plurality of magenta inks and cyan inks each comprise a pigment incorporated therein as a colorant and the other inks each comprise a dye incorporated therein as a colorant.
Claim 13
Dependent Claim
66 words
12 . An ink cartridge comprising a plurality of magenta inks having different densities and other inks received therein integrally or independently at least partly, wherein at least a light-colored magenta ink among said plurality of magenta inks comprises a pigment incorporated therein as a colorant and the other inks having hue different from the magenta inks each comprise a dye incorporated therein as a colorant.
Claim 14
Dependent Claim
66 words
12 . An ink cartridge comprising a plurality of magenta inks having different densities and other inks received therein integrally or independently at least partly, wherein at least a light-colored magenta ink among said plurality of magenta inks comprises a pigment incorporated therein as a colorant and the other inks having hue different from the magenta inks each comprise a dye incorporated therein as a colorant.
Claim 15
Dependent Claim
25 words
13 . The ink cartridge according to claim 12 , wherein said light-colored magenta ink comprises C.I. pigment red 122 incorporated therein as a colorant.
Claim 16
Dependent Claim
51 words
14 . The ink cartridge according to claim 12 , wherein said light-colored magenta ink comprises C.I. pigment red 122 incorporated therein as a colorant, the colorants for yellow ink are C.I. direct yellow 132 and/or C.I. direct yellow 86, and the colorant for cyan ink is C.I. direct blue 199.
Claim 17
Dependent Claim
24 words
15 . The ink cartridge according to claim 14 , wherein said cyan ink comprises a dark-colored cyan ink and a light-colored cyan ink.
Claim 18
Dependent Claim
43 words
16 . The ink cartridge according to any one of claims 12 to 15 , wherein said magenta ink comprises a dark-colored magenta ink and a light-colored magenta ink and said two magenta inks each comprise a pigment incorporated therein as a colorant.
Claim 19
Dependent Claim
66 words
17 . An ink cartridge comprising a plurality of cyan inks having different densities and other inks received therein integrally or independently at least partly, wherein at least a light-colored cyan ink among said plurality of cyan inks comprises a pigment incorporated therein as a colorant and the other inks having hue different from the cyan inks each comprise a dye incorporated therein as a colorant.
Claim 20
Dependent Claim
66 words
17 . An ink cartridge comprising a plurality of cyan inks having different densities and other inks received therein integrally or independently at least partly, wherein at least a light-colored cyan ink among said plurality of cyan inks comprises a pigment incorporated therein as a colorant and the other inks having hue different from the cyan inks each comprise a dye incorporated therein as a colorant.
Claim 21
Dependent Claim
25 words
18 . The ink cartridge according to claim 17 , wherein said light-colored cyan ink comprises C.I. pigment blue 15:3 incorporated therein as a colorant.
Claim 22
Dependent Claim
27 words
19 . The ink cartridge according to claim 17 or 18 , wherein said light-colored cyan ink comprises a pigment and a dye incorporated therein as colorants.
Claim 23
Dependent Claim
71 words
20 . An ink cartridge comprising a plurality of magenta inks and cyan inks having different densities and other inks received therein integrally or independently at least partly, wherein at least a light-colored magenta ink and a light-colored cyan ink among said plurality of magenta inks and cyan inks each comprise a pigment incorporated therein as a colorant and the other inks each comprise a dye incorporated therein as a colorant.
Claim 24
Dependent Claim
71 words
20 . An ink cartridge comprising a plurality of magenta inks and cyan inks having different densities and other inks received therein integrally or independently at least partly, wherein at least a light-colored magenta ink and a light-colored cyan ink among said plurality of magenta inks and cyan inks each comprise a pigment incorporated therein as a colorant and the other inks each comprise a dye incorporated therein as a colorant.
Claim 25
Dependent Claim
63 words
21 . A recording method for effecting color printing with an ink set comprising a plurality of magenta inks having different densities and other inks of a different hue, wherein at least a light-colored magenta ink among said plurality of magenta inks comprises a pigment incorporated therein as a colorant and said other inks each comprise a dye incorporated therein as a colorant.
Claim 26
Dependent Claim
63 words
21 . A recording method for effecting color printing with an ink set comprising a plurality of magenta inks having different densities and other inks of a different hue, wherein at least a light-colored magenta ink among said plurality of magenta inks comprises a pigment incorporated therein as a colorant and said other inks each comprise a dye incorporated therein as a colorant.
Claim 27
Dependent Claim
62 words
22 . A recording method for effecting color printing with an ink set comprising a plurality of cyan inks having different densities and other inks of a different hue, wherein at least light-colored cyan ink among said plurality of cyan inks comprises a pigment incorporated therein as a colorant and said other inks each comprise a dye incorporated herein as a colorant.
Claim 28
Dependent Claim
62 words
22 . A recording method for effecting color printing with an ink set comprising a plurality of cyan inks having different densities and other inks of a different hue, wherein at least light-colored cyan ink among said plurality of cyan inks comprises a pigment incorporated therein as a colorant and said other inks each comprise a dye incorporated herein as a colorant.
Claim 29
Dependent Claim
79 words
23 . A recording method for effecting color printing with an ink set comprising a plurality of magenta inks and cyan inks having different densities and other ink or inks of a different hue, wherein at least a light-colored magenta ink and a light-colored cyan ink among said plurality of magenta inks and cyan inks each comprise a pigment incorporated therein as a colorant and said other ink or inks each comprise a dye incorporated therein as a colorant.
Claim 30
Dependent Claim
79 words
23 . A recording method for effecting color printing with an ink set comprising a plurality of magenta inks and cyan inks having different densities and other ink or inks of a different hue, wherein at least a light-colored magenta ink and a light-colored cyan ink among said plurality of magenta inks and cyan inks each comprise a pigment incorporated therein as a colorant and said other ink or inks each comprise a dye incorporated therein as a colorant.
Claim 31
Dependent Claim
63 words
24 . A recorded material obtained by color printing with an ink set comprising a plurality of magenta inks having different densities and other inks of a different hue, wherein at least a light-colored magenta ink among said plurality of magenta inks comprises a pigment incorporated therein as a colorant and said other inks each comprise a dye incorporated therein as a colorant.
Claim 32
Dependent Claim
63 words
24 . A recorded material obtained by color printing with an ink set comprising a plurality of magenta inks having different densities and other inks of a different hue, wherein at least a light-colored magenta ink among said plurality of magenta inks comprises a pigment incorporated therein as a colorant and said other inks each comprise a dye incorporated therein as a colorant.
Claim 33
Dependent Claim
63 words
25 . A recorded material obtained by color printing with an ink set comprising a plurality of cyan inks having different densities and other inks of a different hue, wherein at least a light-colored cyan ink among said plurality of cyan inks comprises a pigment incorporated therein as a colorant and said other inks each comprise a dye incorporated therein as a colorant.
Claim 34
Dependent Claim
63 words
25 . A recorded material obtained by color printing with an ink set comprising a plurality of cyan inks having different densities and other inks of a different hue, wherein at least a light-colored cyan ink among said plurality of cyan inks comprises a pigment incorporated therein as a colorant and said other inks each comprise a dye incorporated therein as a colorant.
Claim 35
Dependent Claim
79 words
26 . A recorded material obtained by color printing with an ink set comprising a plurality of magenta inks and cyan inks having different densities and other ink or inks of a different hue, wherein at least a light-colored magenta ink and a light-colored cyan ink among said plurality of magenta inks and cyan inks each comprise a pigment incorporated therein as a colorant and said other ink or inks each comprise a dye incorporated therein an a colorant.
Claim 36
Dependent Claim
79 words
26 . A recorded material obtained by color printing with an ink set comprising a plurality of magenta inks and cyan inks having different densities and other ink or inks of a different hue, wherein at least a light-colored magenta ink and a light-colored cyan ink among said plurality of magenta inks and cyan inks each comprise a pigment incorporated therein as a colorant and said other ink or inks each comprise a dye incorporated therein an a colorant.
Claim 37
Dependent Claim
54 words
27 . A recording apparatus arranged such that an ink set according to any one of claims 1 to 11 and/or an ink cartridge according to any one of claim 12 s to 20 can be mounted thereon and said plurality of inks constituting said ink set and/or said ink cartridge can be ejected.
References Cited (Backward Citations)
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