Sumitomo Chemical Company, Limited

Katsumasa Ohtake

Kunihiko Imada

Yoshihisa Sueda

Taizo Ohshima

Katsunobu Sato

Yoshiro Izutsutani

Sanae Sakaguchi

A hydrophobic fiber material is dyed in a dye bath containing at least nine disperse dyes having different chemical structures from one another within a short period of time with a good levelness.

Method for dyeing hydrophobic fiber material with disperse dye

A mixture of at least two members selected from the group consisting of compounds represented by the formula, ##SPC1## Wherein Z represents hydrogen atom or methyl, ethyl, methoxy or ethoxy group, each R.sub.1 and R.sub.2 represents methyl or ethyl group, R.sub.3 represents methyl, ethyl or phenyl group or a phenyl group substituted by methyl, ethyl, methoxy or ethoxy group. The mixture is useful for dyeing hydrophobic fibers such as polyester fibers, and has good dyeabilities, particularly, build-up property.

Azo disperse dye mixtures

Growing community of inventors

Nara, Japan

Katsumasa Ohtake