发明名称 |
Feste Pigmentzusammensetzung für Pigmenttinte, Pigmenttinte, die diese enthält sowie Herstellungsverfahren für die Zusammensetzung und die Tinte |
摘要 |
<p>The present invention provides a process for preparing a solid pigment composition for pigment ink comprising the steps of (a) dissolving polyvinyl alcohol in water, and dispersing pigments in the resulting solution; (b) adding aldehyde derivatives to the resulting pigment dispersion and allowing the polyvinyl alcohol to react with the aldehyde derivatives to prepare polyvinyl acetal; and (c) drying the acetalated pigment dispersion. The pigment ink resulted from the process, employs water-soluble solvents (for example, alcohol solvent, glycol solvent or other non-toxic solvents), contains sufficient amount of pigments, has low concentration with good pigment dispersion and storage stability, and shows good writing or recording ability with improved color-development.</p> |
申请公布号 |
DE60300884(T2) |
申请公布日期 |
2006.05.11 |
申请号 |
DE2003600884T |
申请日期 |
2003.07.25 |
申请人 |
ORIENT CHEMICAL INDUSTRIES, LTD. |
发明人 |
NAGASAWA, TOSHIYUKI;UEDA, YOICHI |
分类号 |
B41J2/01;C09B67/20;B41M5/00;C09B67/00;C09B67/02;C09B67/04;C09B67/08;C09D11/00;C09D11/18;C09D11/322;C09D11/324 |
主分类号 |
B41J2/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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