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2 096 466

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C1

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IPC

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Application

96112990/12, 1996-06-25

(22)

Actual filing date

1996-06-25

(45)

Published

1997-11-20

(72)

Inventor

Kochetova S.P.Shimenovich B.S.Zykova N.V.Studenikin S.I.

(73)

Holder

Tsentral'Nyj Nauchno-Issledovatel'Skij Institut Kozhevenno-Obuvnoj Promyshlennosti

METHOD OF LEATHER RAW TREATMENT Russian patent published in 1997 - IPC

Abstract RU 2096466 C1

FIELD: leather industry. SUBSTANCE: leather raw is subjected for unwinding and treated with hydrogen peroxide in the presence of electrolyte. Unwinding is carried out in the presence of neutral or acid protease taken at amount 0.1-0.8% of raw mass. Treatment with hydrogen peroxide is carried out in the presence of heavy metal salt at their consumption 0.5-1.5% and 0.05-0.25% of raw mass, respectively. Acid is used as an electrolyte at amount 0.6-1.0% of raw mass. EFFECT: improved method of treatment. 1 tbl

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RU 2 096 466 C1

Authors

Kochetova S.P.

Shimenovich B.S.

Zykova N.V.

Studenikin S.I.

Dates

1997-11-20—Published

1996-06-25—Filed

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