METHOD OF LEATHER TANNING

摘要

FIELD: leather industry; applicable in production of leathers of vegetable tannage. SUBSTANCE: hide placed into holder is treated with solution of vegetable extract for 12-16 h with periodic exposure to ultrasonic vibrations with frequency of 16-50 kHz and field intensity of 0.5-1.0 W/sq.cm. Treatment is carried out under conditions of sounding for 1.5-2.0 h and 1.5-2.0 h in silence. EFFECT: improved quality of leather; extended process potentialities. 3 tbl