Reactive black dye compositions for cellulose fibers
AssigneeKorea Research Institute of Chemical Technology
InventorsSea Wha Oh, Myeong Nyeo Kang, Tae Kyung Kim, Mi Kyoung Song
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Abstract
The present invention relates to a reactive black dye composition for cellulose fiber and more particularly, to the reactive black dye composition with excellent several fastnesses, dyeing levelness, reproducibility and dyeing yield, comprising a mixture with a certain amount ratio of an orange reactive dye expressed in formula (1) and black dye expressed in formula (2), wherein Z is —OSO3M or OC(O)CH3; and M is an alkaline metal atom.
Claims1
A reactive black dye composition for cellulose fiber comprising a mixture characterized in that an orange reactive dye expressed in the following formula 1 and black dye expressed in the following formula 2 is mixed in the range of 15-35 wt %:
- 65-85 wt %:
- wherein Z is —OSO3M or OC(O)CH3;
- and M is an alkaline metal atom.
Dependencies are inferred from the claim text.