| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing water-repellent processed cloth having moist absorption and desorption property, excellent in hygroscopicity and moist desorption property and having water repellency too. SOLUTION: This water-repellent processed cloth having moist absorption and desorption property is produced by the after processing where cloth subjected to graft copolymerization with an acidic unsaturated monomer is treated with an alkali, followed by forming a polyion complex with an aqueous solution of a dialkylammonium salt to introduce hydrophobic groups onto the surface of the cloth and by the water repellent treatment. The water-repellent processed cloth has the water repellency of <=350μN/cm surface tension, and has moist absorption and desorption property where fiber shows >=5 wt.% moisture content after being left for 60 min at 30 deg.C and 95% RH from bone dry condition and >=80% decreasing rate of moisture content after being left for 60 min at 25 deg.C and 40% RH from the condition at 30 deg.C and 95% RH.
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