Disperse dyes can be classified into the following three groups:
1) Subzero type: dyes, which show excellent leveling property, and are applied mainly to high temperature dyeing and carrier dyeing.
2) Medium temperature type: dyes, which show high fastness properties, especially light fastness, and are applied to any dyeing process.
3) High temperature type: dyes which show excellent sublimation fastness and can sufficiently stand heat treatment process after dyeing, such as pleat and permanent press finishing, and are applied mainly to high temperature dyeing, thermosol dyeing and printing.

Dyes of our corporation are a series of disperse dyes, which have been marketed for synthetic fibers, especially polyester fibers.