WASHING, DYEING OR FUNCTIONAL PROCESSING FOR FIBER PRODUCT AND SEWED PRODUCT BY HIGH-PRESSURE CARBON DIOXIDE UTILIZING COEXISTING EFFECT OF ADDED AUXILIARY SOLVENT

摘要

PROBLEM TO BE SOLVED: To provide a method for subjecting a synthetic fiber, a natural fiber and a blended yarn woven fabric to washing, dyeing, water-repellent processing, softening and antimicrobial processing by using supercritical, critical or liquid carbon dioxide and a polar organic solvent. SOLUTION: Washing, dyeing and a functional processing can be carried out by utilizing a specific coexisting effect for exhibiting an extremely high dissolving power only when a mixture of supercritical, critical or liquid carbon dioxide and a polar solvent such as ethanol, acetic acid, etc., is blended.