发明名称 |
Process for the production of copper phthalocyanine pigment composition |
摘要 |
A process for the production of a copper phthalocyanine pigment composition from 70 to 99% by weight of a crude copper phthalocyanine and 30 to 1% by weight of a phthalocyanine derivative, the crude copper phthalocyanine being converted to a pigment without a large amount of energy and the treatment of exhaust water, the copper phthalocyanine pigment composition having excellent fluidity, tinting strength and stability with time when used in a coating composition or a printing ink, the copper phthalocyanine pigment composition showing almost no "strike-through" when used for gravure printing on low-quality paper, the process comprising dry milling the entirety of the crude copper phthalocyanine and the phthalocyanine derivative in an amount of 0.5 to 10% by weight of a final composition in the absence of a milling auxiliary until the content of an alpha -form phthalocyanine in the crude copper phthalocyanine is at least 20% by weight, and adding and mixing the remaining phthalocyanine derivative to/with the dry-milled product.
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申请公布号 |
US5427616(A) |
申请公布日期 |
1995.06.27 |
申请号 |
US19940251964 |
申请日期 |
1994.06.01 |
申请人 |
TOYO INK MANUFACTURING CO., LTD. |
发明人 |
TSUJI, KOSAKU;MURAMATSU, YOSHIO;KATO, SHIGEKI |
分类号 |
C09B67/20;C09B47/16;C09B47/20;C09B47/26;C09B67/00;C09B67/04;C09B67/22;(IPC1-7):C09B67/50 |
主分类号 |
C09B67/20 |
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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