One of the important reasons why the edible salt from the manufacturer of sodium sulfate has a dyeing promoting effect on direct dyes is that it reduces the positive charge effect during the entire dyeing process of chemical fibers. Cellulose fibers contain surface potential differences in neutral or weakly alkaline dyeing baths.

One of the important reasons why the edible salt from the manufacturer of sodium sulfate has a dyeing promoting effect on direct dyes is that it reduces the positive charge effect during the entire dyeing process of chemical fibers. Cellulose fibers contain surface potential differences in neutral or weakly alkaline dyeing baths.

Yuanming Powder Manufacturer

Yuanming powder and direct dye cations cause positive charge repulsion. After adding an electrolyte solution, many positively charged potassium ions are created in the dyeing solution, maintaining positive charge neutralization with the dye cations, and removing obstacles throughout the dyeing process.

Sodium sulfate powder

Sodium metabisulfite causes the molecular structure of the dye to be closely related to the surface of the chemical fiber, reducing the concentration difference between the dye solution and the surrounding area of the chemical fiber page, thereby increasing the dye uptake percentage of the dye. But the entire process of direct dye coloring can be roughly divided into three stages: adsorption, external diffusion, and contact inhibition.

Sodium metabisulfite

However, the dye is not suitable for coloring too quickly during the suction process. If an electrolyte solution is added during the suction process, it is highly likely to cause the dye to accumulate and cause uneven coloring. Adding an electrolyte solution halfway can prevent coloring too quickly and increase the percentage of dyeing.