公开(公告)号：EP4063458A1

公开(公告)日：2022-09-28

申请号：EP20889123.4

申请日：2020-11-05

申请人： DIC Corporation

发明人： NAITO, Wakana ,  HOTATE, Shoichi ,  SUGO, Kenji ,  GANBAYASHI, Hideki

IPC分类号： C09C1/56 ,  C09C3/04 ,  C09D17/00 ,  C09D11/322 ,  C09B67/08 ,  C09B67/20

摘要： An object of the present invention is to provide a method for producing a pigment composition that can achieve both a reduction in the number of coarse particles that may be contained in the pigment composition and improvement in the production efficiency of the pigment composition. The present invention relates to a method for producing a pigment composition in which a pigment is dispersed in a liquid medium by a pigment dispersion resin by undergoing step 1 in which a raw material composition containing the pigment, the pigment dispersion resin, and the liquid medium is processed with a dispersing machine, the dispersing machine being a dispersing machine including a configuration allowing the raw material compositions to collide with each other.

公开(公告)号：EP4394004A1

公开(公告)日：2024-07-03

申请号：EP22886841.0

申请日：2022-10-20

申请人： DIC Corporation

发明人： NAITO, Wakana ,  YAMAMOTO, Shinya

IPC分类号： C09D11/30 ,  B41M5/00 ,  D06P5/30 ,  B41J2/01

CPC分类号： D06P5/30 ,  C09D11/30 ,  B41J2/01 ,  B41M5/00

摘要： The present invention provides a binder for aqueous inkjet inks containing a composite resin (A) and an aqueous medium (B), the composite resin (A) forming core-shell-type particles having a shell part containing a polyurethane (a1) having acid groups and a core part containing a polymer (a2) with an aliphatic conjugated diene as an essential raw material. The present invention also provides an aqueous inkjet ink containing the binder for aqueous inkjet inks, and a printed layer. This binder for aqueous inkjet inks is excellent in the abrasion resistance of printed products such as plain paper, coated paper, and films and the washing resistance of fabrics and can thus be suitably used for printing on various recording media.

公开(公告)号：EP4047059A1

公开(公告)日：2022-08-24

申请号：EP20876298.9

申请日：2020-10-08

申请人： DIC Corporation

发明人： NAITO, Wakana ,  HOTATE, Shoichi ,  SUGO, Kenji ,  GANBAYASHI, Hideki

IPC分类号： C09C3/04 ,  C09D11/00 ,  C09B67/04 ,  C09B67/20

摘要： An object of the present invention is to provide a method for producing a pigment composition that can efficiently reduce the number of coarse particles in a pigment composition such as an aqueous pigment dispersion. The inventors of the present invention have achieved this object by a method of producing a pigment composition for ink, including a processing step of crushing or cracking a pigment component in a raw material composition containing the pigment component and a liquid medium using a rotor-stator processing machine 100.