- 专利标题: METHOD FOR PRODUCING AQUEOUS PIGMENT DISPERSION
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申请号: US17295175申请日: 2019-11-07
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公开(公告)号: US20210387149A1公开(公告)日: 2021-12-16
- 发明人: Kohei Hayakawa , Kenji Sugo , Yoshihiro Sato , Yutaro Ueda , Hiroyuki Oominato , Shinichi Okada
- 申请人: DIC Corporation
- 申请人地址: JP Tokyo
- 专利权人: DIC Corporation
- 当前专利权人: DIC Corporation
- 当前专利权人地址: JP Tokyo
- 优先权: JP2018-219376 20181122
- 国际申请: PCT/JP2019/043609 WO 20191107
- 主分类号: B01F3/12
- IPC分类号: B01F3/12 ; C09D17/00 ; B01F9/22 ; B04B1/02 ; B04B15/02
摘要:
The problem to be solved by the present invention is to provide a method for producing an aqueous pigment dispersion that has certain dispersion stability with which the formation of coarse particles with time and the settling of a pigment and the like with time can be reduced and that can be used for producing an ink having excellent discharge stability. The present invention relates to a method for producing an aqueous pigment dispersion, the method including kneading a composition including a pigment including one or more materials selected from the group consisting of a violet pigment, a green pigment, and an orange pigment and a resin, the composition having a nonvolatile content of 50% by mass or more, under predetermined conditions and subsequently performing a centrifugation treatment.
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