METHOD OF SPLIT HIDE WITH EMULSION COATING PRODUCING Russian patent published in 1995 - IPC

FIELD: leather industry. SUBSTANCE: tanning split hide is shaven, washed, greased, tanned additionally, neutralized, greased for two stages, tanned additionally, washed, lain, squeezed out, separated, dried overglueing, stretched, polished, dust removed, and nonpigmented priming of the following composition is applied, mas. p. emulsion M-1 100-200; latex ДММА-65 10-90; lederpriming F 10-90; wax emulsion 30-90; casein 20-60; thickening agent ПАП 10-30, and water 30-70. Then polishing and dust removal, application of the first layer of pigmented priming of the following composition were carried out, mas. p. pigment 50-90; slin-40 30-60; emulsion M-1 40-70; akremos 80-120; wax emulsion 40-80; 10% casein 20-40; ethylcellosolve 20-40; thickening agent ПАП 10-25, and water 50-90. Then the following stages were carried out: the first pressing, the second application of pigmented priming, the second pressing and covering dye of the following composition is applied, mas. p. pigments 120-180; 10% casein 20-40; wax emulsion 20-40; emulsion M-1 40-60; slin-40 30-60; akremos 80-120; ethylcellosolve 20-30; thickening agent ПАП 20-30, and water 120-180. After this the third pressing, the second application of covering dye, the fourth pressing, fixing and the fifth pressing were carried out. EFFECT: improved method of split hide production. 2 tbl