公开(公告)号：EP4129689A1

公开(公告)日：2023-02-08

申请号：EP21780248.7

申请日：2021-03-31

申请人： DNP Fine Chemicals Co., Ltd.

发明人： OKA, Ryouhei ,  MAEGAWA, Yoshiya ,  YOSHIYUKI, Keita ,  IWASAWA, Karuna ,  ORIKASA, Yuka ,  YOSHIMORI, Keishiro

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

摘要： Provided is a non-aqueous ink composition which has superior printing performance, such as continuous discharge stability, and also has excellent storage stability and excellent coloring properties, and with which printed matter having superior durability can be obtained. A non-aqueous ink composition discharged using an inkjet method, the composition containing an organic solvent, a colorant, and a resin, wherein: the resin contains at least one resin selected from the group consisting of acrylic resins, vinyl chloride-vinyl acetate copolymer resins, and cellulose resins; and a resin having intrinsic viscosity at 25°C of 90 mL/g or more accounts for up to 5 mass% of the entire resin.

公开(公告)号：EP4249564A1

公开(公告)日：2023-09-27

申请号：EP21894606.9

申请日：2021-11-15

申请人： DNP Fine Chemicals Co., Ltd.

发明人： INUMARU, Masaki ,  SAITO, Yasuma ,  UTAKA, Koujun ,  IWASAWA, Karuna

IPC分类号： C09D11/38 ,  B41J2/01 ,  B41M5/00 ,  C09D11/30

摘要： Provided is an ink composition able to yield a printed adherend having high weathering resistance. This ink composition is an active energy ray curing type ink composition that is discharged using an inkjet method. The ink composition contains a polymerizable compound, an ultraviolet radiation absorber and an antioxidant. The ultraviolet radiation absorber has a maximum absorption wavelength within the range 315-400 nm. A medium containing the ultraviolet radiation absorber at a concentration of 20 ppm has an absorbance area Ab of 25.0 or more at wavelengths within the range of 315-400 nm.

公开(公告)号：EP3112428B1

公开(公告)日：2018-08-29

申请号：EP15754605.2

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 ,  C09D11/36 ,  C09D11/107

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).

公开(公告)号：EP3112428A1

公开(公告)日：2017-01-04

申请号：EP15754605.2

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： C09D11/30 ,  B41J2/01 ,  B41M5/00

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： 对本发明的油墨组合物提供用于与哪个高速打印是可能的，同时保持打印材料的质量的喷墨记录。 用于喷墨记录的油墨组合物，其中包括：一个色材料，粘合剂树脂，以及有机溶剂，worin该粘合剂树脂包含至少在丙烯酸系树脂（A）和具有从衍生的结构单元的共聚物（B） 羟烷基（甲基）丙烯酸酯，下述通式（I）表示的结构单元，和由以下通式（II），由丙烯酸系树脂（A）的质量含量比为所述表示的结构单元 共聚物（B）（（A）/（B））是25/75以上且70/30或更小，并且worin所述有机溶剂包含至少一个聚亚烷基二醇二烷基醚和环状酯，环状的含量比 酯是3质量份以上至10质量份或相对于100份以下的油墨组合物的质量，和聚亚烷基二醇二烷基醚的含量比为5质量份或相对于100份以下的质量 油墨组合物：worin通式（I）中的每个符号和属 升式（II）是如在说明书中所描述的）。