FIELD: tannery engineering. SUBSTANCE: method involves using water solution or polymer dispersion in the form of foam possessing 10-60 min stability. The treatment is carried out at foam consumption rate of 1-10 l per 1 kg of the semifinished product. Polymer water solution has in by mass dicyandiamide resin 10-30, surface active substance 1-15, water the rest. Polymer water dispersion has in by mass: acrylic emulsion (with respect to the dry residue) 10-40 and water the rest. Prevocell, OP-10, necal are usable as surface active substances. EFFECT: lower water consumption; improved filler usage. 3 cl, 3 tbl
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