Alkaline enzyme scouring of cotton textiles

Bleaching and dyeing; fluid treatment and chemical modification – Cleaning or laundering – Scouring – degreasing or bowking

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8137, 8107, 8111, 435263, 162 72, 162 78, 162 91, 162 95, 162 98, 162 99, D06M 1600

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active

059124075

ABSTRACT:
The invention relates to a process for treatment of cellulosic material, as for example, knitted or woven cotton fabric, comprising the steps of preparing an aqueous enzyme solution comprising pectinase, treating the cellulosic material with an effective amount of the aqueous enzyme solution under alkaline scouring conditions; e.g., pH of 9 or above and a temperature of 50.degree. C. or above, in a low calcium or calcium-free environment, yielding a modification of the cellulosic material such that exhibits an enhanced respond to a subsequent chemical treatment.

REFERENCES:
patent: 4658739 (1987-04-01), Kaskowski
patent: 5487812 (1996-01-01), Thornton et al.
Bach et al. (1992) "Kinetische Untersuchungen zum enzymatischen Abbau von Baumwollpektin" Textilveredlung 27(1) :2-6 (Month Unknown).
Rossner, U. (1993) "Enzymatischer Abbau von Baumwollbegleitsubstanzen" Melliand Textilberichte, Int'l. Textile Reports 74(2):144-148 (Month Unknown).
Abstract--Database WPI Wk. 7706 Derwent Publ. Ltd. London, Class D16, An 77-10262Y XP002059813, for JP 51149976 A, Dec. 1976.
Abstract--Database WPI WK 9248 Derwent Publ. Ltd. London, Class D16, An 92-392407 XP002059814, for JP 04289206 A, Oct. 1992.

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