The content of normal temperature dyeing machine in processing

1. Dyes - commonly used acid dyes, disperse dyes and reactive dyes. Acid dyes mainly dye nylon, disperse dyes mainly dye polyester, and reactive dyes mainly dye cotton. Nylon is dyed with acid dyes, dyed with disperse dyes, the combination of dark polyester and light nylon is dirty, and the combination of dark nylon and light polyester is clean. Polyester uses disperse dyes with many active molecules, while nylon uses acid dyes with high stability, so polyester is easier to dye than nylon fabrics.

2. Additives

3. PH value - usually 4.5-5.5

4. Coloring curve, that is, temperature curve - temperature and time of alkali amount, time and temperature of dye addition, speed and time of heating, time and temperature of heat preservation, speed and time of cooling. From the dyeing point of view, the dyeing temperature is low, the dye is difficult to penetrate into the dispersed dye, the stability of the dye is improved, the color tone is changed, and the dyeing is uniform.

5. Mechanical equipment - commonly used are flat dyeing normal temperature jet hank dyeing machines (flat drum, beam drum, high drum), crepe dyeing (overflow drum, O drum). Appropriate dyeing equipment should be selected according to the surface effect and dyeing quality requirements of various fabrics