Home Science · Textiles and Dyeing
Which of the following statements accurately describes the technical requirements and objectives of the textile dyeing process as a value-added treatment?
- 1Dyeing is an aesthetic process primarily conducted on raw, untreated fibers using only insoluble pigments in cold water to ensure that the natural impurities of the fabric are preserved for a rustic and unique finish.
- 2The dyeing process relies exclusively on the natural attraction between negatively charged dye molecules and textile fibers, requiring no external chemicals or temperature adjustments to achieve consistent shades across different fiber types.
- 3Textile coloring is a mechanical procedure where pigments are dissolved in oil-based mediums and applied to untreated fabrics to minimize the environmental impact of chemical preparatory stages like scouring and bleaching.
- 4Dyeing is a value-added treatment utilizing either insoluble microscopic pigments or aqueous dye liquors, combined with heat, electrolytes, and auxiliary chemicals, to produce appealing, level, and fast colors on properly pre-treated textiles.✓
Correct answer
Dyeing is a value-added treatment utilizing either insoluble microscopic pigments or aqueous dye liquors, combined with heat, electrolytes, and auxiliary chemicals, to produce appealing, level, and fast colors on properly pre-treated textiles.
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