INK COMPOSITION FOR INKJET PRINTING
First Claim
Patent Images
1. An ink composition for ink-jet printing consisting of:
- a pigment in an amount of 0.1 to 15 mass %,a binder resin in an amount of 0.5 to 15 mass %,a pigment dispersant in an amount of 0.1 to 15 mass %, anda solvent in an amount of 60 to 99 mass %,wherein,the solvent consists of;
(i) γ
-butyrolactone in an amount of 5 to 25 mass %, and(ii) diethylene glycol dialkyl ether in an amount of 57 to 88 mass %,the binder resin is a vinyl chloride copolymer resin, andthe pigment dispersant is a polyester-polyamide resin having two or more amido groups in the one molecule thereof and a number average molecular weight of 2,000 to 15,000.
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Accused Products
Abstract
The invention provides an ink composition for ink-jet printing which does not cause clogging of nozzles of an ink-jet printer during printing, to thereby provide a print of desired printing quality; which ensures an appropriate drying rate of printed images; and which attains excellent color development. The ink composition for ink-jet printing, containing a pigment, a binder resin, a pigment dispersant, and a solvent, wherein the solvent is formed of (1) at least one glycol ether and at least one of a lactone compound and 2-pyrrolidone, or (2) at least one glycol ether acetate and at least one of cyclohexane and isophorone.
12 Citations
6 Claims
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1. An ink composition for ink-jet printing consisting of:
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a pigment in an amount of 0.1 to 15 mass %, a binder resin in an amount of 0.5 to 15 mass %, a pigment dispersant in an amount of 0.1 to 15 mass %, and a solvent in an amount of 60 to 99 mass %, wherein, the solvent consists of; (i) γ
-butyrolactone in an amount of 5 to 25 mass %, and(ii) diethylene glycol dialkyl ether in an amount of 57 to 88 mass %, the binder resin is a vinyl chloride copolymer resin, and the pigment dispersant is a polyester-polyamide resin having two or more amido groups in the one molecule thereof and a number average molecular weight of 2,000 to 15,000. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification
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Current AssigneeDAI Nippon Toryo Company Limited
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Original AssigneeDAI Nippon Toryo Company Limited
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InventorsSHIOTANI, Toshihiko, SUGAWA, Tetsuo, KOTERA, Takehiro, MIZUTAKI, Yusuke, KUWAHARA, Mikio, HAYASHI, Kenji, HAYASHI, Hiroki, SANO, Shuji, SHIROTA, Tsuneo, NAKATSU, Katsutaka
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Application NumberUS13/948,575Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current524/111CPC Class CodesC09D 11/30 Inkjet printing inksC09D 11/322 Pigment inksC09D 11/36 based on non-aqueous solvents
