Dyeing and finishing process of polyester-cotton blended fabric

Or dyed cloth as an example, polyester/cotton blended fabric dyeing and finishing process flow: Turn cloth - seam head - Singe - boil - oxygen bleach - set - mercerizing - dyeing - finishing - Product testing

When polyester-cotton blended fabrics are just popular, there is much controversy in the printing and dyeing industry about whether the shaping process is put on mercerizing or before mercerizing. The consensus reached is that the shaping process is more favorable to the quality of the dyed fabric before it is placed on the mercerizing process. Now the polyester-cotton blended fabric can also be completely processed by the cold-rolling reactor technology, and the effect is also very good.

The process flow of polyester-cotton blended bleached fabric differs from that of pure cotton bleached fabrics. In the process flow, the two fiber components need to be whitened (brightened). The cotton fiber whitening agent can be used in the same bath as the oxygen bleaching liquid, or it can be placed in the same bath after the finishing process and the softener. And the addition of white polyester can be used as a separate process, and some manufacturers will dip the polyester finishing solution for a long time and then pull the hair color with high temperature heat. Take oxygen bleaching cotton fiber plus white one-bath process as an example, the process flow of polyester-cotton blend bleaching is as follows:

Turn cloth - seam head - singe - boil - oxygen bleaching cotton fiber plus white - set - mercerized - polyester plus white - finishing - Finished product inspection

There are also manufacturers of polyester-cotton blended bleached cloth using the following process:

Twist cloth--stitching--singeing--cooking--oxygen bleaching cotton fiber plus white--polyester plus white setting hair color--silk light--finishing--finished product inspection

This process is characterized by a clear and clean polyester-whitening agent that does not exhibit coloration after the polyester is added to white, making the fabric of the polyester-cotton blended bleached fabric more white and beautiful. It used to be a classic process for creating a famous brand in a printing and dyeing factory in Shanghai.