METHOD OF PROCESSING AND HARDENING SKINS OF BIRDS FOR PRODUCTION OF FUR OUT WEAR Russian patent published in 2010 - IPC C14C1/00 C14B1/02 C14B15/00 

FIELD: personal effects.

SUBSTANCE: all materials used in tanning and hardening of skins of birds are used in the food industry. In this regard, the production is clean and safe. Hardening of the scrapings of birds skins tanned and further strengthening of their material from the tissue adhesive on the basis provides an opportunity for making and sewing finished fur products from virtually any species of birds. Method of tanning and hardening of skins of birds includes strict observance of processing operations pelts. The method includes shooting skins, then impregnation of pen cover is carried out with absorbent powder, degreasing and cleaning of skin by mechanical means with addition of absorbent mixtures. After these operations skins are washed in a solution of detergent powder and degreaser. Then skins are wringed in a centrifuge with subsequent drying inn the drum with use of medium powder drier, preservation of skins with pickle is made and fixing of skins with nails and preservation with acid-saline. As the absorbent powder mixture of sawdust and powder-dryer is used, as a powder-dryer starch is used. As the tannins in the skins harden tanning a decoction of oak bark is used.

EFFECT: exclusion of contact with the pen cover of fats and other contaminants and ensuring of drying skins of birds in certain conditions with the use of powder-dryer and hardening of tanning with an additional enhancement of the skin material, higher rates of physical and mechanical properties compared to tanned skins of fur-bearing animals known methods and possibility to keep a pen cover from in original appearance, form and direction of the pen and its natural colour; experienced wearability of these products for several years has shown great strength of their tear.

2 cl, 13 dwg