Any real owner who lives completely at the expense of the economy wants to use as much as possible products which he receives. Growing up the cattle, it is insufficiently correct to process meat, skins should not go to waste too. Get acquainted with method of manufacture of skins which can be applied in house conditions.
Instruction
1. Otmachivaniye. It is necessary to prepare skin right after osvezhevaniye while it is steam room. If the skin has dried without processing, it is necessary to otmochit it. Do it for softening and removal of inner side. At first skins are examined, put away large garbage from skin and turned out inner side up. Now it is necessary to prepare solution for otmachivaniye. It is necessary to proceed from liquid coefficient of skin. For example, the rabbit abrasive paper dry preserved has ZhK 20, it means that 50 gr skins 1 liter of liquid is necessary. Mokrokonservirovanny abrasive paper of rabbit has ZhK 8-9, for sukhokonservirovanny skin of sheep – ZhK 10. Calculation of liquid on the basis of ZhK allows to reduce costs of chemicals and also guarantees uniform maceration of skins. If ZhK is unknown, then solution is prepared so that skins in it easily rotated and did not nestle to each other. Solution is prepared from table salt and antiseptics. Its role can carry out ZnCl (2g/l), Furacilin (1 tablet) or formalin (1g/l). Perhaps, instead of antiseptics to use acetic acid (5-7g/l). Everyone selects amount of salt individually, on average it is 30-50 g/l. In solution lower skins and take out in 12 hours. If skins did not become softer, are not similar to steam rooms, it is necessary to leave them for some time.
2. Mezdreniye. This process is directed to disposal of abrasive paper of the remains of meat and fat and also excess layer of the skin. Processing is done on the mezdrilny machine or pack, having turned skin stocking inside out. The inner side is torn off by iron brushes or blunt knife. Their surface has to be leveled not to injure skin. Process since rump, moving ahead to the head.
3. Washing. Mosle of mezdreniye, skins wash in solution. That to prepare it, it is necessary to take cleaning agent (privotset) or laundry detergent of 3g/l and 20g/l salt. Skins submerge in solution for 5 minutes, wring out and immediately put in pickle solution.
4. Pickling. This process assumes immersion of skins in solution from salt and acid. Acid loosens skin fibers, doing them flexible and viscous. After pickling the skin can be stretched in any party. Generally use acetic, formic or lactic acid which yield the best results. Solution of pickle consists of 50 g of salt and 15 g of acetic acid (or 5 g of formic acid) on 1 liter of water. Skins submerge in solution and in 12 hours pull out. Skins mix all the time. Check readiness of skin bending skin and squeeze. After deployment on the place of bend there has to be white strip.
5. Tanning. It is necessary for giving to durability skin. As tanning agents use compounds of aluminum, chrome, titanium, iron, tannins, formaldehydes, etc. Chromic solution is used most often, for its preparation take 50 g of salt, 6 gr the chromic tanning agent on 1 liter and dissolved in very hot water. Skins in the tanning agent leave for 12-24 hours, constantly warming up.
6. Greasing. It adds to skin gloss. Greasing 25 g glitserina20 prepare from 100 g of salt, of sal ammoniac and 70 g of yolk on 1 l of water. Solution is heated and put with brushes, then skins are put inner side to inner side.
7. Drying. Skins wring out in the centrifuge, then finally dry in heat chambers for drying at t 40-45oC. In the conclusion of skin roll away in the centrifuge with sawdust, fur at the same time is ground, then skins rumple in special drums, skins at the same time stretch a little.