The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.
本发明涉及新的偶氮染料、其制备工艺及其在纤维材料染色或印花中的用途,以生产出带褐色色调的材料。
Trisazo dyes for paper dyeing
申请人:Kemira Oyj
公开号:EP2457955B1
公开(公告)日:2017-08-09
AZO DYES
申请人:Meier Helmut-Martin
公开号:US20130255007A1
公开(公告)日:2013-10-03
The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.