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CATALYSTS AND PROCESSES FOR FORMALDEHYDE-FREE DURABLE PRESS FINISHING OF COTTON TEXTILES WITH POLYCARBOXYLIC ACIDS
CATALYSTS AND PROCESSES FOR FORMALDEHYDE-FREE DURABLE PRESS FINISHING OF COTTON TEXTILES WITH POLYCARBOXYLIC ACIDS
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机译:聚丙烯酸酯对棉纺织物进行无甲醛无醛持久加压精制的催化剂和方法
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摘要
Catalysts for the rapid esterification and crosslinking of fibrous cellulose in textile form by polycarboxylic acids at elevated temperatures are disclosed. The catalysts are acidic or weakly basic salts selected from the alkali metal dihydrogen phosphates and alkali metal salts of phosphorous, hypophosphorous, and polyphosphoric acids. Suitable polycarboxylic acids include saturated, unsaturated and aromatic acids, as well as alpha-hydroxy acids. The textiles so treated exhibit high levels of wrinkle resistance and smooth drying properties durable to repeated laundering in alkaline detergents, and do not contain or release formaldehyde.
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