FIELD: processing leather. SUBSTANCE: leather wastes are wetted in aqueous medium within 2-6 h, 0.5-3 mass of hydrolyzing agent being added. Salt of alkali metal is used as said hydrolyzing agent. Then drying at 130-150 C within 20-80 min and grinding are carried out. EFFECT: improves efficiency of the method. 1 tbl
Title | Year | Author | Number |
---|---|---|---|
METHOD OF PROCESSING LEATHER WASTES INTO LEATHER POWDER | 1998 |
|
RU2146714C1 |
METHOD OF PROCESSING LEATHER WASTE INTO LEATHER POWDER | 1995 |
|
RU2094466C1 |
COMPOSITION FOR PREPARING SHEET CRYOCROSS-LINKED COLLAGEN-CONTAINING MATERIAL | 1992 |
|
RU2035472C1 |
LEATHER WASTE DECHROMATION PROCESS | 2001 |
|
RU2182930C1 |
METHOD OF PROCESSING LEATHER WASTE INTO LEATHER POWDER | 0 |
|
SU1527264A1 |
PROCESS FOR PREPARING COLLAGEN SPONGE | 1993 |
|
RU2039766C1 |
LEATHER WASTE DECHROMATION PROCESS | 2001 |
|
RU2182931C1 |
HOT-STAMPING FOIL, METHOD AND APPARATUS FOR MANUFACTURING THEREOF | 1995 |
|
RU2103178C1 |
METHOD FOR PROCESSING CATTLE HIDES TO OBTAIN COLLAGEN-CONTAINING FOOD-PURPOSE MATERIAL | 2022 |
|
RU2795059C1 |
PROCESS FOR PREPARING COLLAGEN CONTAINING MATERIAL | 1992 |
|
RU2018540C1 |
Authors
Dates
1995-08-09—Published
1993-03-01—Filed