Catalysts and processes for formaldehyde-free durable press fini

Details Catalysts and processes for formaldehyde-free durable press fini Catalysts and processes for formaldehyde-free durable press fini

1988-06-16

1989-04-11

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Cellulose fibers

81271, 81161, D06M 4300

Patent

active

048203076

ABSTRACT:
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.

REFERENCES:
patent: 3526048 (1970-01-01), Rowland et al.
patent: 3575960 (1971-04-01), Tesoro

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