What is the polyester degreasing dyeing process in the same bath?

The same-bath process for polyester degreasing and dyeing can replace part of the traditional alkaline degreasing pretreatment process, transforming the two-step degreasing dyeing method into a one-step method, saving energy and water, and shortening the processing time, becoming the current mainstream processing technology .

Little knowledge of dyeing

Have you ever encountered such a problem?

After the polyester fabric is degreasing and dyed, dot-shaped oil circles and small dye black spots appear on the fabric surface; these problems are mainly due to the lack of emulsification of oil stains and the lack of dye dispersing ability, resulting in oil stains and dyes. Cohesion, eventually causing various problems on the cloth.

Main source of oil pollution

1. Chemical fiber oils added to spinning and weaving, mainly including white oil and mineral oil, etc.

2. Contaminated with oil on the equipment and oil in transit

Oil removal mechanism

Relying on the washing performance of the degreaser, that is, wetting, penetration, emulsification, and finally by the mechanical action of external force, the dirt is detached from the surface of the fabric, and finally it is completely washed.

Dye Dispersion

In the process of polyester processing in the same bath, disperse dyes are directly added to the industrial liquid. It must be considered that the degreaser needs to have good dispersing ability for dyes, and it can help improve levelness and help customers reduce color patterns, color points and other problems. .

Therefore, the degreasing agent used in the same bath of dyeing needs to have the functions of degreasing and decontamination, emulsifying oil, disperse dyes, etc., so we recommend using the same bath degreasing agent CY-115.