Casditol Acid: acid neutralizer and textile sequestrant
Acid Neutralizer · Sequestrant · Dispersant
Acid Neutralizer and Sequestrant-Dispersant for scouring and bleaching of cotton, nylon/spandex, and their blends. Free of acetic acid and other volatile weak acids, preventing the formation of salts such as sodium acetate that yellow the fiber.
Properties
- Facilitates the removal of metal and hardness ions in a substoichiometric ratio, meaning small amounts of CASDITOL ACID sequester large quantities of ions present in water, cotton, pipes, and/or electrolytes
- Hydrolytically stable at acidic and strongly alkaline pHs.
- Neutralizes alkalinity deep within the fiber
- After peroxide bleaching, enables the neutralization of caustic soda and the elimination of peroxide with TERMINOX Ultra in a single step, ensuring the absence of metal ions and hardness before dyeing
- Minimizes subsequent yellowing of Nylon/spandex blends when applied as an auxiliary in the final rinse after bleaching.
Uses
- Scouring of cotton, nylon/spandex, and their blends
- Bleaching of cotton, nylon/spandex, and their blends
Specifications
Related technical articles
Cotton Mercerizing: What It Is, What It Does to the Fiber and How to Control the Process
Mercerizing treats cotton yarn or fabric with concentrated caustic soda under tension. It gives luster, strength, dimensional stability and higher dye uptake when concentration, temperature, time, tension and washing are under control. The process variables, the difference from causticizing, how to check the result and the usual defects.
Read more →Water Hardness in Textile Dyeing: Why Shades Do Not Repeat and What a Sequestrant Does
Calcium, magnesium, iron and copper in the water and in the cotton itself precipitate surfactants, decompose peroxide, cause pinholes and shift shades from lot to lot. What hardness is, what it does in each process step, the types of sequestrants and where to dose them.
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