纺织品的染色

The raw materials used for coloring in ancient China can be divided into mineral pigments and plant dyes, among which the latter was the main dye in ancient times. Mineral pigments are colored by using adhesives to adhere to the surface of the fabric, but the colors easily fall off when exposed to water. This is not the case with vegetable dyes. During dyeing, the melanin molecules change the color of the fibers by binding to the fabric fibers. Even if the dyed color is washed in the sun, it will not fall off easily or very rarely.

There were indeed too many common mineral and plant dyes in ancient times. The coloring techniques developed by ancient people based on the characteristics of different dyes include: direct dyeing, mordant dyeing, recovery dyeing, resist dyeing, overprint dyeing, etc. The diversity of dye types and process methods made the chromatographs used in printing and dyeing factories in ancient times very rich. There are more than a hundred commonly described in ancient books, especially in one color, dozens of similar ones are clearly separated. Color, this can only be achieved by mastering the composition and secret recipes of various dyes and changing the process standards.