发明名称 |
ORGANIC SOLVENT-BASED CONCENTRATED INK COMPOSITION FOR GRAVURE PRINTING AND GRAVURE PRINTING METHOD |
摘要 |
The present invention provides an organic solvent-based concentrated ink composition for gravure printing which shows good print density, printability, and laminatability even in gravure printing using a shallow cylinder. The organic solvent-based concentrated ink composition for gravure printing mainly includes a pigment; binder resin; and an organic solvent. The pigment includes at least one of an organic pigment and an inorganic pigment. The binder resin includes polyurethane resin. A solution obtainable by dissolving 30 parts by mass of the polyurethane resin in 70 parts by mass of the organic solvent has a viscosity of 100 to 500 mPa·s/25° C. The concentrated ink composition has a viscosity of 10 to 1000 mPa·s/25° C. and has a viscosity in gravure printing of 12 to 23 s/25° C. in terms of the efflux time from a Zahn cup #3. The concentrated ink composition satisfies one of the following conditions 1 to 3:;Condition 1: the pigment being an organic pigment; the amount of the organic pigment being 5 to 20% by mass and the amount of the polyurethane resin being 3 to 20% by mass each in the organic solvent-based concentrated ink composition for gravure printing; and the amount of the polyurethane resin being 60 to 200 parts by mass for 100 parts by mass of the organic pigment;;Condition 2: the pigment being an inorganic pigment; the amount of the inorganic pigment being 5 to 70% by mass and the amount of the polyurethane resin being 3 to 20% by mass each in the organic solvent-based concentrated ink composition for gravure printing; and the amount of the polyurethane resin being 5 to 60 parts by mass for 100 parts by mass of the inorganic pigment; and;Condition 3: the pigment including both an organic pigment and an inorganic pigment; the amount of the organic pigment being 5 to 20% by mass in the organic solvent-based concentrated ink composition for gravure printing; the ratio by mass ((mass of inorganic pigment)/(mass of organic pigment)) of the organic pigment to the inorganic pigment satisfying 0<(mass of inorganic pigment)/(mass of organic pigment)<7.0; the amount of the polyurethane resin being 3 to 20% by mass; and the amount of the polyurethane resin being 20 to 200 parts by mass for 100 parts by mass of the whole pigments. |
申请公布号 |
US2015090143(A1) |
申请公布日期 |
2015.04.02 |
申请号 |
US201314396307 |
申请日期 |
2013.04.26 |
申请人 |
SAKATA INX CORP. |
发明人 |
Inoue Takahiko;Ogawa Toru;Harada Junichi |
分类号 |
C09D11/102;C09D7/12;B41F13/11 |
主分类号 |
C09D11/102 |
代理机构 |
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代理人 |
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主权项 |
1. An organic solvent-based concentrated ink composition for gravure printing, mainly comprising
a pigment; binder resin; and an organic solvent, the pigment comprising at least one of an organic pigment and an inorganic pigment, the binder resin comprising polyurethane resin, a solution obtainable by dissolving 30 parts by mass of the polyurethane resin in 70 parts by mass of the organic solvent having a viscosity of 100 to 500 mPa—s/25° C., the concentrated ink composition having a viscosity of 10 to 1000 mPa—s/25° C. and having a viscosity in gravure printing of 12 to 23 s/25° C. in terms of the efflux time from a Zahn cup #3, and the concentrated ink composition satisfying one of the following conditions 1 to 3: Condition 1: the pigment being an organic pigment; the amount of the organic pigment being 5 to 20% by mass and the amount of the polyurethane resin being 3 to 20% by mass each in the organic solvent-based concentrated ink composition for gravure printing; and the amount of the polyurethane resin being 60 to 200 parts by mass for 100 parts by mass of the organic pigment; Condition 2: the pigment being an inorganic pigment; the amount of the inorganic pigment being 5 to 70% by mass and the amount of the polyurethane resin being 3 to 20% by mass each in the organic solvent-based concentrated ink composition for gravure printing; and the amount of the polyurethane resin being 5 to 60 parts by mass for 100 parts by mass of the inorganic pigment; and Condition 3: the pigment comprising both an organic pigment and an inorganic pigment; the amount of the organic pigment being 5 to 20% by mass in the organic solvent-based concentrated ink composition for gravure printing; the ratio by mass ((mass of inorganic pigment)/(mass of organic pigment)) of the organic pigment to the inorganic pigment satisfying 0<(mass of inorganic pigment)/(mass of organic pigment)<7.0; the amount of the polyurethane resin being 3 to 20% by mass; and the amount of the polyurethane resin being 20 to 200 parts by mass for 100 parts by mass of the whole pigments. |
地址 |
Osaka-shi, Osaka JP |