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1. Remove the debris from the collected waste animals, place it in a cylinder and soak it in warm alkaline water (the ratio of alkaline water is 100 parts of water and 1 part of a 30% concentration of caustic soda solution, the temperature is 40°C). Soak 4 ~ 6 hours. If you stir, the time can be shortened.
2. After soaking, the animal hairs are allowed to dry to the surface without moisture, and then they are sent to the fluffy machine for preliminary processing according to different types and become fluffy. The animal hairs are then rolled into cotton wool with a ginning machine.
3. According to the different processed products, such as the size of the curtain mat, tent felt, shoe felt and other specifications, expand the bamboo curtain of the corresponding size, and evenly spread the wool floc of the specified thickness by hand. At the same time spray a little water to make it wet, check the thickness consistent. After flattening, the bristles are rolled into a bundle with bamboo curtains, and a number of ropes are fastened.
4. Roll the bamboo wool-wrapped bales on the felting machine. The rolling time depends on the type and thickness of the batting. After the wool fibers are sufficiently involved in the felting process, they are put into the felt. The mat was then removed from the bamboo curtain and soaked in hot water at 80-90°C for half an hour to wash off dirt on the surface.
5. The washed felt is hanged and spread, and both surfaces are coated with an industrial starch paste with a suitable amount of preservative. Felt again, so that the paste goes deep inside. Then wash to remove surface laitance.
6. After 2 times of felting and washing, the felt is basically formed. Hang it, dry it in the sun. If there is a partial shrinkage or deformation, it is finished by hand; then the inner layer is obtained by drying the dryer.
Author: No. 028 Heilongba, Kailu, Inner Mongolia
Waste animal hair making felt technology
The use of waste animal hair to make blankets is simple and practical, with considerable benefits. The production technique is as follows.