申请人:Everlight USA, Inc.
公开号:US07232895B1
公开(公告)日:2007-06-19
The present invention relates to a disazo red reactive dyestuff containing quaternary ammonium group of the following formula (1):
wherein R′, R″, m, n, Y1 and Y2 are defined the same as in the specification. The disazo red reactive dyestuff of the present invention has a good dye uptake while dyeing cellulose fibers, which satisfies the economical demand of high build up in the market.
本发明涉及一种含有以下式(1)中季铵基团的偶氮红色活性染料,其中R′、R″、m、n、Y1和Y2的定义与规范中相同。本发明的偶氮红色活性染料在染色纤维素纤维时具有良好的染料吸收性能,满足市场对高建筑物需求的经济要求。