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2 031 990

(13)

(51)

IPC

(21) (22)

Application

92014638/12, 1992-12-25

(22)

Actual filing date

1992-12-25

(45)

Published

1995-03-27

(72)

Inventor

Rakitkina V.M.Ivanova M.G.

(73)

Holder

Tsentral'Nyj Nauchno-Issledovatel'Skij Institut Kompleksnoj Avtomatizatsii Legkoj Promyshlennosti

METHOD OF PREPARATION OF FLAX ROVING FOR THE WET SPINNING Russian patent published in 1995 - IPC

Abstract RU 2031990 C1

FIELD: chemical technology of textile materials treatment. SUBSTANCE: flax roving is boiled in aqueous liquid. Liquid has sodium hydroxide and/or soda ash 10-25 g/l, meta-nitrobenzenesulfonate sodium 5-25 g/l, wetting agent 0.1-0.3, and water - the rest up to 1 l. Material is washed with sodium tripolyphosphate solution, treated with alkaline solution of hydrogen peroxide, washed with hot water, acidified and washed with cold water. EFFECT: improved method of flax roving preparation. 2 tbl

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RU 2 031 990 C1

Authors

Rakitkina V.M.

Ivanova M.G.

Dates

1995-03-27—Published

1992-12-25—Filed