Correct option is A
Thermasol, carrier, high temperature, and high dye pressure are specific methods used in the dyeing process involving
disperse dyes. Disperse dyes are used primarily for synthetic fibers such as polyester. These dyes are dispersed in a carrier medium to achieve deep color penetration into the fibers, typically under high temperature and pressure conditions. Thermasol dyeing involves the use of a carrier to aid in the dispersion of dye molecules onto synthetic fabrics.
Information Booster: Disperse dyes are widely used for dyeing synthetic fabrics like polyester, acetate, and nylon because these fibers are hydrophobic and do not absorb water-soluble dyes. Disperse dyes, therefore, are used in a carrier or high-temperature system to help the dye molecules enter the fibers. These dyes are typically applied in the form of a dispersion in water, where heat and pressure are key factors in achieving the dyeing process.
Additional Knowledge:
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Mineral dye: Mineral dyes are not used with high pressure or temperature methods. They are naturally occurring colorants, often derived from minerals and metals, and have different properties from synthetic dyes like disperse dyes.
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Vegetable dye: Vegetable dyes, derived from plants, require different dyeing methods that usually involve the use of mordants and may not require the high pressure or temperature used for synthetic dyes.
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Animal dye: Animal dyes, derived from sources like insects (e.g., cochineal), are generally used in traditional dyeing and also don't require the high pressure and temperature typically associated with disperse dyeing.