After the fur has been wet processed by tanning, dyeing, and fatliquoring, it needs to be transferred to the drying and finishing stages of the fur. The main processes are: drying, resurgence, rolling soft, hook soft, grinding, skin degreasing, rinsing, carding, dust removal, repair, scale, acceptance and so on. Different from the processing method and the processing method, the increase, decrease, sequence, and repetition of the process should be adjusted accordingly. The skin is made light, thin and soft by means of recruitment, and the hair is loose, flexible, bright, clean, with no hook hair, and no quicksand.
1 . After drying the tanned and fatliquored pelts, the water content is generally above 60%, and the moisture content of the pelt finished products is between 12% and 18%. Wet skin has a large plasticity, and the skin fibers are not shaped, and mechanical operations are not possible. After drying, the fibrous tissue is shaped to facilitate the finishing and beautification. There are four commonly used drying methods.
(l) Natural Drying The fur is laid flat on the ground or suspended on a rod or rope, and the skin is dried by the natural flow of air.
(2) Drying in the drying room and drying tunnel In the drying room or in the drying tunnel, there are facilities for adding heat, cooling air, exhaust air and heat, which are not affected by the environmental climate, and have the characteristics of fast drying speed and high efficiency.
(3) Fixed drying The fur is fixed to a wooden board or frame and dried. The moisture content of the skin before drying is controlled at 30% to 40%.
(4) Drying of the tumbler The hot air is blown into the rotating drum while being rotated and dried, both for rolling and softening, and for the purpose of drying.
No matter which method is used for drying, the water content in the skin should be evenly distributed. After drying, the skin should be stacked for more than 12 hours to balance the skin moisture.
2. The rehydrated skin that has dried out needs to be re-absorbed due to processing needs, which is called regain or softening.
After the wet skin is dried, the fibers are in a bonded state, the area is shrunk, and the skin is hard. The purpose of the rejuvenation is to make the dried fur obtain proper moisture and become soft, so as to facilitate the process of shoveling and softening. The correct rejuvenation requires that the skin should not be too dry or over-floating. The entire skin is evenly hydrated, and the skin plate can be opened after rejuvenation, and the white color is appropriate. The water content is 18%~20%. Optional drum rejuvenation method, direct water rejuvenation method
3. Soft and soft-sweeping fur-recovered fur with blade, soft-knife soft-cutter, shovel-softener, and grinding machine apply certain mechanical operations to the leather plate to loosen and stretch the skin fibers and remove scum from the skin. , Soften, thin, and lighten the skin as much as possible by shoveling, grinding, etc., clean the skin, and be careful not to expose the hair roots and not to lose hair
4. Degreasing and rinsing of skins For some greasy hides such as sheep hides and skins, degreasing before preparation alone is not enough, because the preparation section can only remove grease from the surface, and there is a lot of fat in the dermis. If you do not remove the net, it will affect the use of fur. In the finishing stage, the skin plate is skimmed, and the dry cleaning machine is often used for dry cleaning.
The peeled skin is put into a detergent solution and washed to further remove the dirt, impurities and greasy dirt on the fur, so that the finished product is soft and plump, and the extensibility and air permeability are improved, and the gloss of the hair is increased. The main equipment used for rinsing is the slotting. Technical conditions: liquid ratio 30 litres/sheet, detergent 4 g/l, soda ash 0.5 g/l, temperature 50°C, time 1 hour, pH 9.5 to 10.
5. Rolling, stretching In order to make the skin soft, the hair is loose, flexible, bright, clean, remove the floating color on the dyed fur, increase the luster of the hair, need to roll on the fur.
Rolling and stretching operations can be repeated many times. In order to enhance the rolling effect, you can add washed Xihe sand and a suitable amount of organic solvents such as light gasoline or turpentine in sawdust.
6. The hair is played on a hair-trimming machine to remove dust, sawdust, etc. from the hair.
7. Combing is generally performed on a carding machine, and the bonded hair is combed to make the hair toward a certain direction while removing the sawdust, dust and floating hair remaining in the hair, so that the finished product has a beautiful appearance. Requires careful operation, minimize hair loss, and do not hurt skin.
8. The shearing is carried out on a shearing machine for some low-grade imitation leathers. After shearing, the hair is flattened and the required hair length is achieved.
9. Dust and dust removal is to remove dust from the fur. The fur is required to shake in the sun, and it is better not to see dust. Dust removal can be done using a cage. The precious fur is best dusted with a vacuum cleaner.
10. After passing the quality inspection, the scale measures the area of ​​the skin, which provides the basis for the cutting section. When measuring the amount of skin, its area error does not require more than 2%.
1 . After drying the tanned and fatliquored pelts, the water content is generally above 60%, and the moisture content of the pelt finished products is between 12% and 18%. Wet skin has a large plasticity, and the skin fibers are not shaped, and mechanical operations are not possible. After drying, the fibrous tissue is shaped to facilitate the finishing and beautification. There are four commonly used drying methods.
(l) Natural Drying The fur is laid flat on the ground or suspended on a rod or rope, and the skin is dried by the natural flow of air.
(2) Drying in the drying room and drying tunnel In the drying room or in the drying tunnel, there are facilities for adding heat, cooling air, exhaust air and heat, which are not affected by the environmental climate, and have the characteristics of fast drying speed and high efficiency.
(3) Fixed drying The fur is fixed to a wooden board or frame and dried. The moisture content of the skin before drying is controlled at 30% to 40%.
(4) Drying of the tumbler The hot air is blown into the rotating drum while being rotated and dried, both for rolling and softening, and for the purpose of drying.
No matter which method is used for drying, the water content in the skin should be evenly distributed. After drying, the skin should be stacked for more than 12 hours to balance the skin moisture.
2. The rehydrated skin that has dried out needs to be re-absorbed due to processing needs, which is called regain or softening.
After the wet skin is dried, the fibers are in a bonded state, the area is shrunk, and the skin is hard. The purpose of the rejuvenation is to make the dried fur obtain proper moisture and become soft, so as to facilitate the process of shoveling and softening. The correct rejuvenation requires that the skin should not be too dry or over-floating. The entire skin is evenly hydrated, and the skin plate can be opened after rejuvenation, and the white color is appropriate. The water content is 18%~20%. Optional drum rejuvenation method, direct water rejuvenation method
3. Soft and soft-sweeping fur-recovered fur with blade, soft-knife soft-cutter, shovel-softener, and grinding machine apply certain mechanical operations to the leather plate to loosen and stretch the skin fibers and remove scum from the skin. , Soften, thin, and lighten the skin as much as possible by shoveling, grinding, etc., clean the skin, and be careful not to expose the hair roots and not to lose hair
4. Degreasing and rinsing of skins For some greasy hides such as sheep hides and skins, degreasing before preparation alone is not enough, because the preparation section can only remove grease from the surface, and there is a lot of fat in the dermis. If you do not remove the net, it will affect the use of fur. In the finishing stage, the skin plate is skimmed, and the dry cleaning machine is often used for dry cleaning.
The peeled skin is put into a detergent solution and washed to further remove the dirt, impurities and greasy dirt on the fur, so that the finished product is soft and plump, and the extensibility and air permeability are improved, and the gloss of the hair is increased. The main equipment used for rinsing is the slotting. Technical conditions: liquid ratio 30 litres/sheet, detergent 4 g/l, soda ash 0.5 g/l, temperature 50°C, time 1 hour, pH 9.5 to 10.
5. Rolling, stretching In order to make the skin soft, the hair is loose, flexible, bright, clean, remove the floating color on the dyed fur, increase the luster of the hair, need to roll on the fur.
Rolling and stretching operations can be repeated many times. In order to enhance the rolling effect, you can add washed Xihe sand and a suitable amount of organic solvents such as light gasoline or turpentine in sawdust.
6. The hair is played on a hair-trimming machine to remove dust, sawdust, etc. from the hair.
7. Combing is generally performed on a carding machine, and the bonded hair is combed to make the hair toward a certain direction while removing the sawdust, dust and floating hair remaining in the hair, so that the finished product has a beautiful appearance. Requires careful operation, minimize hair loss, and do not hurt skin.
8. The shearing is carried out on a shearing machine for some low-grade imitation leathers. After shearing, the hair is flattened and the required hair length is achieved.
9. Dust and dust removal is to remove dust from the fur. The fur is required to shake in the sun, and it is better not to see dust. Dust removal can be done using a cage. The precious fur is best dusted with a vacuum cleaner.
10. After passing the quality inspection, the scale measures the area of ​​the skin, which provides the basis for the cutting section. When measuring the amount of skin, its area error does not require more than 2%.
Car Blanket is also called as auto blanket, as it is normally used for keeping warm in the car.
As a result, it is normally used in the open air. When people go out for a picnic and want to have a snap in the daylight or even spend the whole night outside, then the car blanket would be a best choice for you.
It uses 12V voltage, rather than AC power.
You just need to plug it into cigarette lighter of your car, and it the blanket will keep you warm.
Below image as a reference:
Car Blanket
Car Blankets, Heated Car Blanket, Car Electric Blanket, Car Heating Blanket
Ningbo JustLive Electrical Appliance Co., Ltd , https://www.makeheat.net