RU93015347A - METHOD OF BLEACHING VISCOSE HARNESS, FIBER AND VISCOSE THREAD - Google Patents

METHOD OF BLEACHING VISCOSE HARNESS, FIBER AND VISCOSE THREAD

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Publication number
RU93015347A
RU93015347A RU93015347/04A RU93015347A RU93015347A RU 93015347 A RU93015347 A RU 93015347A RU 93015347/04 A RU93015347/04 A RU 93015347/04A RU 93015347 A RU93015347 A RU 93015347A RU 93015347 A RU93015347 A RU 93015347A
Authority
RU
Russia
Prior art keywords
viscose
bleaching
fiber
harness
thread
Prior art date
Application number
RU93015347/04A
Other languages
Russian (ru)
Inventor
Н.А. Дорофеев
Н.Б. Васильева
Н.В. Наумова
Х.И. Виллемсон
П.Н. Зернов
Л.И. Безверхая
N.A. Dorofeev
N.B. Vasil'eva
N.V. Naumova
Kh.I. Villemson
P.N. Zernov
L.I. Bezverkhaja
Original Assignee
Н.А. Дорофеев
N.A. Dorofeev
Filing date
Publication date
Application filed by Н.А. Дорофеев, N.A. Dorofeev filed Critical Н.А. Дорофеев
Publication of RU93015347A publication Critical patent/RU93015347A/en

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Claims (1)

Изобретение относится к области производства химических волокон и позволяет улучшить эксплуатационные свойства путем расширения технологических возможностей с одновременным сокращением удельных расходов химикалий за счет того, что процесс отбеливания вискозного волокна, жгута и вискозных нитей при непрерывном способе производства проводится в две стадии: сначала путем пропитки волокна водным раствором хлорита натрия при pH 7,2-7,8 или 10,5-11,5 и невысокой температуре 20<199>25<198>С в течение короткого времени 5<199>10 секунд, затем последующей операции по обработке волокна раствором серной кислоты при повышенной температуре не менее 70<198>С в течение 9 <199> 12 секунд. Данный способ отбеливания обеспечивает получение вискозного волокна, жгута, вискозных нитей высокого качества со степенью белизны 80 <199> 85%.The invention relates to the field of production of chemical fibers and allows to improve the performance properties by expanding technological capabilities while reducing the specific consumption of chemicals due to the fact that the bleaching process of viscose fiber, tow and viscose yarn in a continuous production method is carried out in two stages: sodium chlorite solution at a pH of 7.2-7.8 or 10.5-11.5 and a low temperature of 20 <199> 25 <198> C for a short time of 5 <199> 10 seconds, then a subsequent ation of fibers treated with a solution of sulfuric acid at an elevated temperature of at least 70 <198> C for 9 <199> 12 seconds. This bleaching method provides viscose fiber, tow, high quality viscose yarn with a whiteness of 80 <199> 85%.
RU93015347/04A 1993-03-23 METHOD OF BLEACHING VISCOSE HARNESS, FIBER AND VISCOSE THREAD RU93015347A (en)

Publications (1)

Publication Number Publication Date
RU93015347A true RU93015347A (en) 1996-08-10

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