Bleaching and dyeing; fluid treatment and chemical modification – Chemical modification of textiles or fibers or products thereof – Cellulose fibers
Patent
1975-02-27
1976-04-06
Knight, III, John
Bleaching and dyeing; fluid treatment and chemical modification
Chemical modification of textiles or fibers or products thereof
Cellulose fibers
8183, 8185, 8186, 8187, D06M 1556
Patent
active
039486001
ABSTRACT:
In mild cure finishing, strong catalysts are required because of the modest curing conditions employed in the process. Suitable catalysts for mild cure finishing include strong inorganic acids, strong organic acids, active inorganic complexes, salt/acid combinations, and salts that are strong Lewis acids (i.e, certain metal salts). Ammonium salts of inorganic acids, although often used in other types of treatments for producing wrinkle resistant textiles, are not satisfactory catalysts for mild cure finishing. Unexpectedly and surprisingly, it has been discovered that ammonium salts of certain, but not all, sulfonic acids can serve as effective catalysts for mild cure finishing of cellulose-containing fabrics to produce wrinkle resistance and durable press properties. Among ammonium sulfonates which provide the catalysis needed for mild cure finishing are ammonium methanesulfonate, ammonium carboxymethanesulfonate (NH.sub.4 O.sub.3 SCH.sub.2 COOH), ammonium benzenesulfonate, and ammonium p-toluenesulfonate.
REFERENCES:
patent: 2315128 (1943-03-01), Newkirk
patent: 3617195 (1971-11-01), Moyse
patent: 3854866 (1974-12-01), Franklin et al.
Kullman Russell M. H.
Reinhardt Robert M.
Hensley Max D.
Knight, III John
Silverstein M. Howard
The United States of America as represented by the Secretary of
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