公开(公告)号：EP3112428A4

公开(公告)日：2017-09-20

申请号：EP15754605

申请日：2015-02-25

申请人： DNP FINE CHEMICALS CO LTD

发明人： OOGAKI MEGUMI ,  YOSHIMITSU SHINICHI ,  WATANABE KATSUMI ,  OKA RYOHEI ,  ISHIMA YUKIKO ,  IWASAWA KARUNA

IPC分类号： B41J2/01 ,  B41M5/00 ,  C09D11/106 ,  C09D11/107 ,  C09D11/36

CPC分类号： C09D11/033 ,  B41J2/01 ,  C09D11/106 ,  C09D11/107 ,  C09D11/17 ,  C09D11/30 ,  C09D11/36 ,  C09D11/50

摘要： The present invention provides an ink composition for inkjet recording with which high-speed printing is possible while maintaining the quality of a printed material. An ink composition for inkjet recording, including: a color material, a binder resin, and an organic solvent, wherein the binder resin contains at least an acrylic-based resin (A), and a copolymer (B) having a constitutional unit derived from a hydroxyalkyl (meth)acrylate, a constitutional unit represented by the following general formula (I), and a constitutional unit represented by the following general formula (II), a content ratio by mass of the acrylic-based resin (A) to the copolymer (B) ((A)/(B)) is 25/75 or more and 70/30 or less, and wherein the organic solvent contains at least a polyalkylene glycol dialkyl ether and a cyclic ester, a content ratio of the cyclic ester is 3 parts by mass or more and 10 parts by mass or less relative to 100 parts by mass of the ink composition, and a content ratio of the polyalkylene glycol dialkyl ether is 5 parts by mass or less relative to 100 parts by mass of the ink composition: wherein each symbol in the general formula (I) and the general formula (II) is as described in the description).

摘要翻译： 本发明提供一种喷墨记录用油墨组合物，其能够维持印刷物的品质并且高速印刷。 一种喷墨记录用油墨组合物，其含有：着色材料，粘合剂树脂和有机溶剂，其中所述粘合剂树脂至少包含丙烯酸类树脂（A）和具有衍生自其的结构单元的共聚物（B） （甲基）丙烯酸羟烷基酯，下述通式（I）所示的结构单元和下述通式（II）所示的结构单元中的至少1种丙烯酸类树脂（A）与 （B）（（A）/（B））的重量比为25/75以上且70/30以下，所述有机溶剂至少含有聚亚烷基二醇二烷基醚和环状酯， 酯的含量相对于油墨组合物100质量份为3质量份以上且10质量份以下，且聚亚烷基二醇二烷基醚的含量比例相对于100质量份的聚亚烷基二醇二烷基醚为5质量份以下 该油墨组合物：其中通式（I）中的每个符号和属 式（II）如描述中所述）。