METHOD OF PREPARING TANNING AGENT Russian patent published in 1998 - IPC

Abstract RU 2103373 C1

FIELD: leather industry. SUBSTANCE: vegetable tanning agent is prepared by extracting buckwheat pod with hot water in presence of sulfurous acid in quantity 5-10% based on raw material weight, after which extract is filtered off, concentrated, and dried. EFFECT: improved procedure. 2 tbl

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RU 2 103 373 C1

Authors

Chechenev L.A.

Uvarova N.N.

Klenovskaja N.V.

Dates

1998-01-27—Published

1996-08-22—Filed