Printing And Dyeing Technology

Also known as dyeing and finishing.

It is a kind of processing method, also is the general term of pretreatment, dyeing, printing, finishing, washing water, etc.

The dyeing and finishing major of undergraduate course has been incorporated into the light chemical engineering major now;

As early as the Neolithic Age, six or seven thousand years ago, our ancestors were able to dye linen red with hematite powder.

The primitive tribes living in Nomehong area of Qaidam Basin, Qinghai, can dye their wool into yellow, red, brown, blue and other colors to weave cloth with color stripes.

During the Shang and Zhou dynasties, dyeing techniques were constantly improved.

In the palace handcraft workshop, there were full-time officials named "dyers" to "handle the dyeing of grass" to manage the dyeing production.

The colors are also increasing.

By the Han Dynasty, dyeing technology had reached a very high level.