The leather is loved by people because of its abrasion resistance, tensile strength, soft leather, and good breathability. Nowadays, there are many finished products made of leather, leather shoes, belts, leather bags, leather sofas, etc.
The difference between leather and true two layers of skin
The leather is loved by people because of its abrasion, tensile strength, soft leather, and good breathability. Nowadays, there are many finished products made of leather, leather shoes, belts, leather bags, leather sofas, etc.Leather products, layman consumers often do not know how to identify authenticity. In addition, the leather is divided into the leather level, and it is divided into the head layer leather and the second layer of leather. So, is the two layer of leather leather?The editor will explain it in detail.China
Different leather skin and leather head layer skin difference
The raw material of the tone is animal skin. Although the most common in our lives is pork skin, cowhide, and sheepskin, in fact, most animal skin can be used for tingling.Its just that the quality of cowhide, pig skin and sheepskin is good and large in yield.The leather is divided according to the level of the leather, with the head layer and the second layer of leather. What is the difference between the second layer of leather and the leather head layer?
1. The meaning of leather
The "leather" is a common word in the leather products market, and it is a habit name for people to distinguish the synthetic leather.In the concept of consumers, "leather" also has non -false meaning.It is mainly processed by animal skin.There are many types of leather, variety, different structures, different quality, and different prices.Therefore, leather is not only a collective name for all natural leather, but also a vague logo in the commodity market.From a physiological point of view, any animal skin has hair, epidermis and dermis.Because the leather contains a small fiber bundle, it is quite powerful and breathable.The epidermis is located under the hair, clinging to the leather, consisting of different shapes of epidermal cells.The thickness of the epidermis varies with the animal.
2. The head layer skin and the second layer of skin
Head layer skin: directly processed from the original skin of various animals, or cut into two layers up and down after the skin and other animals such as beef, pigs, and horses with thicker cortex.Layer skin.The head layer is covered with grain, and the skin surface has natural scars and blood marks. Occasionally, there are knife injuries during processing and the belly parts with a very low utilization rate.The head layer skin is also divided into facial leather, facial leather, and half -faced leather.Facial leather: Among the many leather varieties, the full -scale leather is topped, because it is processed from the top raw materials that are less disabled, and the complete natural state is retained on the leather surface.An animal skin is natural.It is not only wear -resistant, but also has good breathability.
Repair leather: It is made of lighting the surface with a leather machine and then painted, and then pressed on the corresponding pattern.In fact, it was "cosmetic" on a natural leather with disability or rough.This kind of revolutionary flexibility and good breathability can also be regarded as a full -grained high -end leather.
Half -grain leather: During the production process, it was processed and grinded into only half of the noodles through the equipment, which maintained part of the style of natural leather. The pores were flat and oval.Ingredients.So it is a mid -range leather.Because of the particularity of the craftsmanship, there is no disability and scar on the surface, and the utilization rate is high. Its finished products are not easy to deform, so it is generally used for large -scale large -scale box products.
Two layers of skin: It is a two -layer part of the fibrous tissue, which is processed by the spraying or covering PVC and PU film by chemical materials.It makes its leather feel thicker. Although it maintains the characteristics of the cowhide of the head layer, after all, it is not the first layer of leather, which makes the breathability and wearing resistance not as good as the head layer of cowhide.The leather is the same, and the price is only one -third of the first layer of cowhide.The two -layer cowhide is prone to cracks when the leather surface is worn for a long time.When the weather is cold, the non -full -layer cowhide products will cause hard hair and cracking; when the weather is hot, the non -full -layer cowhide products can easily accumulate air, causing the film to soften the foam.Uncomfortable use also reduces the life of the product.
Division of the head layer leather and the second layer of leather: observe the vertical cut surface fiber density of the skin.The head layer is composed of a dense and thin fiber layer and a slightly loose excessive layer with it tightly connected. It has the characteristics of good strength, elasticity, and craftsmanship.The second layer of leather is only a loose fiber tissue layer. It can only be used to make leather products after spraying chemical raw materials or polishing. It maintains a certain characteristics of natural elasticity and craftsmanship.The skin is the same.There are also various leather used in todays popularity. The leather processing process is somewhat different, but the division method is the same.
Artificial Revolution: Artificial Revolution is a substitute for leather fabrics. It uses PVC to add plasticizers and other auxiliary pressures to delay on the cloth.In other words, it is completely different from the head layer leather and the second layer of leather, and it is not a leather itself.Its advantages are cheap, rich colors, and many patterns. The disadvantage is that it is easy to harden and become brittle.The two -layer PU leather mentioned above is used to replace PVC artificial leather. Its price is higher than the PVC artificial revolution.In terms of chemical structure, it is closer to leather fabrics. It does not use plasticizers to achieve soft properties, so he will not harden and become crispy. At the same time, he has the advantages of rich colors and many patterns. The price is cheaper than the leather fabric.So it is welcomed by consumers.
Leather identification method
1. Hand touch: that is, touch the surface of the leather with your hands. If you have a smooth, soft, plump, and elastic feeling, it is the leather; and the general synthetic leather surface is astringent, rigid, and poor.Pore ??wrinkles.If there are wrinkles after pressing, it will not disappear obviously, it is leather.
2. Seeing: The leather surface has clearer pores and patterns, the orange leather has relatively well -proportioned fine pores, the yak leather has thick and sparse pores, and sheep skin has fish -like pores.There is no pores of the leather, which is an important feature of identifying the authenticity of the leather.
3. Smell: Every leather has the smell of leather; and the artificial leather has a more irritating plastic smell.
4. Lift: Lift a little fiber from the back of the leather and artificial leather. After litting, the pungent smell is made, and the artificial leather that forms a pimple; all the hair smells of hair, the dermis is the dermis.Cut the corners and burn, taste, but not the burnt smell of hair.
5. Water -absorbing identification: The water absorption on the surface of the leather is better, and the fake skin is the opposite. It has good water resistance.You can use your fingers to dip some water and apply it on the surface of the clothing to observe its water absorption. If the water absorption is good, it is leather, poor water absorption or no water absorption, most of which are fake skin.
Leather maintenance method
1. After the dermis has been in contact with the outside world for a long time, it will cause humidity in the inside. It should often be placed in a ventilated place to prevent the breeding of bacteria, and it can also be stored in an appropriate amount of moisture -proof beads.
2. The leather is accidentally moisture, apply dry cloth to suck water, and then placed in a cool and cool place. It is naturally dry. Do not place it under the hot sun or blow dry with hair dryers to avoid explosive, deformation and hardening.
3. The leather should not be placed in an environment with high temperature, too low temperature, and excessive humidity, otherwise it is prone to wear.
4. Do not rinse with water or wipe it with a chemical reagent, and apply cotton cloth with a soft brush to wipe.

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