公开(公告)号：EP2843012A1

公开(公告)日：2015-03-04

申请号：EP13781692.2

申请日：2013-04-26

Applicant: Sakata INX Corp.

Inventor： INOUE Takahiko ,  OGAWA Toru ,  HARADA Junichi

IPC: C09D11/10 ,  B41M1/10 ,  B41M1/30

CPC classification number: C09D11/102 ,  B41F13/11 ,  B41M1/10 ,  B41M1/30 ,  C09D7/63 ,  C09D11/033 ,  C09D11/037

Abstract: 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

Abstract translation: 本发明提供了用于凹版印刷其中示出了即使在凹版印刷良好的打印密度，印刷性，和层压能力使用浅圆筒基于有机溶剂的浓缩油墨组合物。 用于凹版印刷的基于有机溶剂的浓缩油墨组合物主要包括颜料; 粘合剂树脂; 和溶剂在有机的。 所述颜料包括有机颜料和颜料以无机中的至少一个。 粘合剂树脂包括聚氨酯树脂。 通过在70份由有机溶剂的质量聚氨酯树脂的质量溶解30份的溶液可获得的具有100至500毫帕·秒/时的粘度25℃下 浓缩的油墨组合物具有10至1000毫帕·秒/ 25℃下的粘度，并且具有从一个齿杯＃3中的流出时间而言在12到23秒/ 25℃下凹版印刷的粘度。 浓缩的油墨组合物SATIS外资企业一个满足下列条件1至3：条件1：所述颜料为有机颜料; 有机颜料是5质量％至20％和聚氨酯树脂为3〜20质量％在每一个用于凹版印刷的基于有机溶剂的浓缩墨液组合物的量的量; 和聚氨酯树脂为60〜200质量份为100质量份的有机颜料的质量; 条件2：颜料是无机颜料; 该无机颜料是5质量％至70％和聚氨酯树脂为3〜20质量％在每一个用于凹版印刷的基于有机溶剂的浓缩墨液组合物的量的量; 和聚氨酯树脂为5〜60质量份为100质量份的无机颜料的质量; 和条件3：颜料既包括有机颜料和无机颜料的; 有机颜料为5至20％在凹版印刷的基于有机溶剂的浓缩油墨组合物质量的量; 的质量比（（无机颜料的质量）/（有机颜料的质量））的有机颜料以满足0 <（无机颜料的质量）/（有机颜料的质量）<7.0的无机颜料; 所述聚氨酯树脂为3〜20质量％的量; 和聚氨酯树脂的量按质量计为100质量份的整个颜料的质量为20〜200重量份。