Dyes that are insoluble in water but can be applied as a fine colloidal dispersion to synthetic fabrics like polyester are called:
Correct answer: C. Disperse dyes
- A. Acid dyes
- B. Basic dyes
- C. Disperse dyes
- D. Vat dyes
Explanation
Disperse dyes are specifically designed for dyeing synthetic fibers such as polyester, due to their insolubility in water and ability to be applied as a fine colloidal dispersion. This property allows them to penetrate the hydrophobic fibers and bond effectively. Acid dyes and basic dyes, being water-soluble, are unsuitable for polyester. Vat dyes require a reduction process to become soluble and are usually used for cellulose fibers like cotton, not synthetic ones.
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About Industrial Chemistry
Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
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