Cooking method of fur

Preparation of 1. Nitrate solution: dissolve 10 kg sodium sulfate (mirabilite) in 100 kg water, then add 25 kg flour and stir evenly. The dosage of nitrate solution is about 10 times the weight of fur.

2. Nitrification: soak the softened fur in nitrate solution, stir and soak it evenly, press the organism to immerse it under the liquid surface, and turn it once a day. The curing time depends on the temperature. When the temperature is 15 ~ 20℃ in spring and autumn, it is generally soaked for 16 ~ 22 days, and when the temperature reaches 30℃ in summer, it can be soaked for about 15 days.

3. The inspection method of the finished product is to fold the leather board in half or squeeze the nitrate solution by hand. If the hide is white and dehydrated well, it means it has been nitrated. Don't touch raw water after the finished product is taken out of the tank, then dry it and shovel it.

4. This method is a traditional wool ripening method in China. This method has the advantages of convenient materials, soft products, white fur color and high tensile strength of leather board. However, the product has poor water resistance and heat resistance, and has an unpleasant smell. For families with small output, this method can still be used.

Extended data:

Fresh skin processing

1, it is generally impossible to deal with it in time after peeling, because there is a process of collection and concentration. Pretreatment of fresh fish skin is the key to prevent fish skin from rotting and ensure cooked quality.

2. Clean the peeled fresh skin in time, that is, cut off hooves, ears, lips and tails. Peel off the residual meat and fat on the skin by hand, and then wash away dirt, feces, blood, etc. Stick to the skin with clear water. Don't use too much force when scraping the leftover meat, in case you scratch the leather board. In addition, because the plush grows backwards on the leather board, it should be scraped from the head of the leather to the buttocks along the hairy roots to reduce the disability of the leather board.

3. After the fresh skin is cleaned, hang it in a ventilated place or in a weak light to dry, turn it to 80% dry, fold it, flatten it with wooden boards and finishing things, and continue to dry it the next day.

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