Freshly peeled hides are called fresh skin (blood skin). Fresh skin contains a large amount of water, protein, fat, inorganic salts, enzymes, etc. It is a good medium for the growth of various microorganisms. If it is not timely preserved, it will easily become spoiled and deteriorated and lose its use value. The main method of antisepsis is the monotonous method, which is a kind of antiseptic method that drops the skin moisture and intercepts the bacterial activity most easily. There are three main situations:
After peeling off the rabbit skin with a nail plate method, use a knife to cut the skin along the ventral midline (can not use scissors to cut off the coat), trim off irregular corners, scrape off the fat, and then put on the plate. When on the leather board, the hair is facing the board, and the inside is facing outwards, nailed with a nail, first nailed the neck and then nailed to the tail, after which the skin is stretched and laid flat on both sides by hand, and the nails on both sides are nailed and placed in a ventilated place to dry. dry.
"Several" frame method will strip the skin, the meat facing outwards, set on the "few" shaped support frame, placed in a ventilated place to dry.
After the flat drying method is performed, the skin is cut along the midline of the ventral abdomen, and the skin is turned down, the skin is facing upwards, the skin is facing upwards, and the skin is put on the straw mat or the wood board. Dry it. Do not place on wet ground or grass.
The monotonic method has the advantages of easy method, low cost, clean skin, and easy transportation. Defects are only suitable for monotonous regions and monotonous seasons. If the monotony is improper, it is easy to damage the skin. The fracturing or insect damage is likely to occur during the retention process.
In addition, the use of salting in repellant rabbit skins is also common. The salting method is more reliable than the monotonous method. It not only has strong anti-corrosion power, but also can avoid the sticking and breaking of rabbit skin, and it is convenient for transportation and storage. The salting method is divided into dry salting and brine salting.
Dry salting method to take dry fine salt surface solve raw hides. For a wider range of solutions, the amount of salt used is about one-fifth the weight of raw hides, and some also add 1% to 1.5% of p-chlorodiphenyl and 2% to 3% of naphthalene in terms of salt content. To solve the problem, sprinkle a salty surface or a mixture of chlorinated diphenyl and naphthalene on the surface of the fresh skin. Spread a thick layer of skin and spread the skin as much as possible. After that, another piece of raw hides was laid on the surface of the skin for the same solution. Piled up to a height of about 1 meter in the skin, after 1 week, the concentration of salt in the rabbit skin is balanced. However, if the summer temperature is too high, it should not be piled up. Instead, use a monotonous method.
Salt water shall be used to remove meat, fat, and connective tissue adhering to fresh flesh-meat, and then immersed in salt water at a concentration of not less than 25%. The temperature of the salt water shall be maintained at 15°C, removed on the 1st of the night, and drained for 2 hours for deposition. , And then sprinkle dry salt equivalent to 25% of tare weight.
The salt dry method combines the salting method with the monotonous method to gradually monotonize the skin after being salted. This method is suitable for hot areas. Because the high temperature effect easily causes the raw hides to rapidly monotonous and break, and gradually make the salt liquid thicken, it can protect the raw hides, avoid breakage, and inhibit bacterial activity.
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