Printing And Dyeing Industry

The Printing And Dyeing Industry is the textile dyeing and finishing processing industry

The demand for chemicals mainly involves dyes with good uniformity, bright color, and excellent fastness, as well as various auxiliary agents for auxiliary dyeing and processing.

RELATED PRODUCTS

Soda Ash Light

Strong alkalinity, can adjust pH value, soften water quality, and participate in chemical reactions

Specific Scenario

Used for desizing cotton fabrics (removing starch slurry during the weaving process).

Product Function

Under alkaline conditions, starch slurry is expanded and hydrolyzed, making it easy to remove by subsequent water washing. In addition, light soda ash has good solubility and can quickly dissolve in the desizing tank, ensuring uniform solution concentration.

Specific Scenario

Used for dyeing cotton and linen fabrics with reactive dyes (such as dyeing T-shirts and curtain fabrics).

Related Value

Reduce dye costs for printing and dyeing factories, especially suitable for high concentration dyeing scenarios of dark fabrics such as black and navy blue.

Anhydrous sodium sulfate

As a dye promoter, it improves the adsorption rate of dyes on fibers (reduces dye solubility, promotes its transfer to fibers), reduces dye waste, and enhances dyeing uniformity.

FAQ

What is the role of Anhydrous sodium sulfate in reactive dye dyeing?

Neutralize the negative charges on the surface of fibers, reduce the repulsion between dyes and fibers, and improve the dye uptake rate

Why is Soda Ash added in stages in reactive dye dyeing?

Risk of one-time addition: pH sudden rise>11.5
Correct operation: Add in 3 times, with a 10 minute interval between each time, and control the pH between 10.5-11.0.

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