发明授权
US4832698A Aqueous liquid composition of vinylsulfone type reactive dyes in lithium
salt form and buffer
失效
乙烯砜型活性染料的锂盐形式和缓冲液的液体组合物
- 专利标题： Aqueous liquid composition of vinylsulfone type reactive dyes in lithium salt form and buffer
- 专利标题（中）： 乙烯砜型活性染料的锂盐形式和缓冲液的液体组合物
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申请号： US35864申请日： 1987-04-08
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公开(公告)号： US4832698A公开(公告)日： 1989-05-23
- 发明人: Shinei Ikeou , Takemi Tokieda , Noriaki Yamauchi , Kunihiko Imada , Yutaka Kayane
- 申请人： Shinei Ikeou , Takemi Tokieda , Noriaki Yamauchi , Kunihiko Imada , Yutaka Kayane
- 申请人地址： JPX Osaka
- 专利权人： Sumitomo Chemical Company, Limited
- 当前专利权人： Sumitomo Chemical Company, Limited
- 当前专利权人地址： JPX Osaka
- 优先权： JPX61-90242 19860418
- 主分类号： C09B67/26
- IPC分类号： C09B67/26
摘要：
An aqueous liquid dye composition comprising a dye represented by the following formula in a free acid form, ##STR1## wherein Y is --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 X in which X is a group splittable by the action of an alkali, and a pH buffer, the dye being in the form of a lithium salt, and the liquid dye composition having a pH value of from 3 through 7 and a dye content of from 5 through 50% by weight based on the weight of the liquid dye composition, which can be stored stably for a long period of time even at a low temperature such as 0.degree. C. or lower, and a high temperature such as 40.degree. C. or higher.
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