The processing of sheepskin is usually started from the autumn. Sheepskin processing procedures include: First, slaughtered in the sheep's neck, the skin first longitudinal incision, the incision is about 7-10 cm long, then the knife into the incision to pick the trachea and blood vessels, or pull out the blood vessels in the throat to cut blood. When slaughtered and bleeding, it is necessary to pay attention to the fixation of the sheep, to avoid contaminating the skin with sheep blood, and to complete the bloodletting, and then peeling. 2. When peeling and peeling, put the sheep's limbs upside down on a clean board or on the ground. Use the tip of the knife to pick up the cortex at the midline of the abdomen, continue to pick up the lip along the midline of the chest to the lower lip, and then return. Pick back along the midline to the outside of the rectum, and then cut two horizontal lines from the inside of the two forelimbs and the two hind limbs, straight to the hoof, perpendicular to the longitudinal line of the chest and abdomen. Then use a knife to peel 5-10 cm into the cortex, which is picked up along the chest and abdomen. Afterwards, peel off all the sheepskin with a boxing method. At any time during the skinning process, use a knife to scrape the scraps and grease remaining on the sheepskin. Drop it. The peeled fur must be well-formed and must not be short of any part. In particular, the skin of the kiwi, seeking to maintain its head, ears and legs, and removing the ear bones, leg bones and coccyx, should keep the skin of the male lamb as much as possible. When peeling, try to avoid human disability. Third, the drying of the stripped sheepskin nailed to the wall or on a clean ground to dry, but not under the sun exposure. Fresh skin monotonous optimum temperature is 20-30 °C. Temperature below 20°C, slow evaporation of water, and long monotonous time may cause the skin to suffer bacterial attack and erosion. When the temperature exceeds 30°C, the moisture of the outer surface of the skin evaporates quickly, which causes skin contraction or gelation of the collagen. This prevents moisture from evaporating from the inner layer and causes the skin to become wet inside and outside. If the inner layer is damaged by bacteria, it is Layering occurs when immersed. In addition, the monotony of high temperature may also cause irreversible denaturation of collagen, monotonous non-uniform, it will make the skin soaked uneven, and inconvenient after the cooked. Usually, when the moisture content of raw hides drops to about 15%, the bacteria will not be able to breed. This can temporarily inhibit the activity of microorganisms and achieve anti-corrosion goals. Fourth, the cooking process of cooked sheepskin is: check the skin soaked in the skin and clean the next time the water is stuffy and scrape the meat in the second time. (1) Inspect the skins. Spread the skins to be cooked. See if the skin has cracks. Wrinkles will smash the hairs and remove any debris that has been stuck on the sheepskin. If the skin has cracks, it will increase the crack during the cooking process, affecting the quality of the skin, so the crack should be sewn before soaking. If there is any blemishes on the skin, it should be cut off at the smashed area and then soaked and cooked. (b) soak the sheepskin into a large cylinder, add water soaking. Soak in 1 day in summer and 2-3 days in winter. (c) In the scraping meat, place the inside of the skin upwards and spread it horizontally on a wooden pole, scraping the residual meat and grease from the skin with a knife. (D) After cleaning the meat and scraping it, wash it with clean water, then add alkali, soap, detergent and other detergents to wash the fur until all are washed. (5) The lower cylinder adds salt, Glauber's salt, flour and water in the cylinder and soaks the skin in the cylinder. The role of salt is to protect the wool. The effect of adding Glauber's salt is to soften the skin. The effect of adding flour is to protect the skin and to act as an adsorption oil. A sheep's skin needs 50 grams of Glauber's salt, 100 grams of salt, and 1 kg of noodles (preferably yellow rice noodles, which can also be replaced with cornmeal). Salt and nitrate must be re-dissolved in the tank, and water is added to flood the skin. Soaking time is 7-8 days in summer and 20-30 days in winter. When the inside of the limbs of the skin is close to the hairless body of the body, when the epidermis is removed by hand, the skin can be removed and dried in the sun. (6) Water suffocation Spread the dry skin, spray a little water on the skin, and moisturize the skin. Do not spray too much water. Afterwards, every two skins are put together and put in a cool place for 1-2 hours. (7) In the second scraping of meat, the second scraping of meat is to make the skin soft, and a blunt knife must be used. Dry the clothes after the shovel to cut the clothes. 4 Ply Face Mask,4 Ply N95 Face Mask,N95 Respirator Mask,White N95 Face Mask GULF STAR MEDICAL MANUFACTURING FZE , https://www.gulfstarmedical.com