Classification of digital printing dyes and processes
1. Distributed digital printing
At present, more than 50% of the printing inks in my country are disperse dye inks, which are used for printing chemical fiber fabrics such as polyester fibers; A nonionic dye that exists in a dispersed state.
2. Reactive digital printing
Reactive dye ink accounts for about 29%, mainly used for silk, cotton, rayon and linen fabric printing; reactive dyes, also known as reactive dyes. The color separation of this kind of dyes contains genes that can chemically react with fibers. When printing, the dyes react with the fibers, and form a covalent bond between the two to form a whole, which improves the fastness to washing and rubbing.
3. Acid digital printing
Acid dye ink has a small specific gravity and is mainly used for printing wool, nylon, silk and other fabrics. Acid dyes are a kind of water-soluble dyes with acidic groups in their structure, which are printed in acidic medium. Acid dyes are bright in color and complete in color spectrum. It is mainly used for dyeing and printing of wool, silk and nylon, and can also be used for leather, paper, ink, etc.
4. Pigment digital printing
The amount of pigment ink used in my country is relatively small, less than 2%, mainly including paint, latex, uv, etc.
