公开(公告)号：DE102004032488A1

公开(公告)日：2005-01-27

申请号：DE102004032488

申请日：2004-07-05

Applicant: KAO CORP TOKIO TOKYO

Inventor： AZUMA KOJI ,  TSUTSUMI TAKEHIRO ,  MIZUSHIMA RYUMA ,  TAKENO HIROTAKA ,  IWASAKI TOSHIYA

IPC: C09D11/00 ,  C09D11/10 ,  C09B67/36 ,  C09B69/10

Abstract: The invention provides a process for producing a water dispersion for ink jet recording,which comprises the following steps 1 and 2: (Step 1) a step of obtaining a pigment treated with (a) a water-insoluble vinyl polymer particles by making a pigment and (a) a water-insoluble vinyl polymer particles present in an aqueous solvent and then removing the solvent; and (Step 2) a step of obtaining a water dispersion of a pigment-containing water-insoluble vinyl polymer particles by dispersing a mixture comprising the water-insoluble vinyl polymer particle (a)-treated pigment obtained in step 1, an organic solvent, (b) a water-insoluble vinyl polymer and water and then removing the organic solvent.