Leather Common Sense: Teach You The Skin Of The Division, The Two Layers, The Skin, The Skin, The Skin.

< p > < strong > genuine leather cowhide > /strong > /p >

< p > > a href= "//www.sjfzxm.com/news/index_c.asp" > dermis < /a > there are many kinds of the following kinds: first, the first layer of cowhide.

Two, two layers of cowhide.

Three, household skin, broken skin, skin binding.

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< p > these three layers of cowhide are the most expensive.

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< p > < strong > how to analyze whether or not the head layer has several points: < /strong > < /p >

< p > < a target= "_blank" href= "//www.sjfzxm.com/" > leather < /a > level, there are two layers of leather, including the first layer leather, the grain leather, the shaving leather, the embossed leather, the special effect leather and the embossed leather. The two layer leather is divided into two layers of pig and two layers of leather.

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< p > two layers of leather characteristics: the reverse is cowhide's second layer leather material, and the surface is coated with a layer of PU resin, so it is also called the film skin.

Its price is cheaper and its utilization rate is high.

With the change of the process, it is also made into various grades. The surface of the two layers of leather is much coarser than the top layer.

Therefore, the surface coating should be used in some brands of bags.

Because of the resin and color, the general customers can not see the top two stories, plus the top layer price is high.

As a result, the cost is saved so that customers can be cheaply.

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< p > three, furniture.

Broken skin.

Skin binding.

This is finished, the product will have some leftover bits and pieces, then paddle it into a paddle and press it into a whole skin, just like making a paper paddle, and how to distinguish it, because it is all kinds of colors together, there will be a string of threads, or a joint, like the joint that we sometimes use very bad paper. Generally, most of the broken leather is made into some purses or little things. < /p >

What is the meaning of "P > < strong > the top layer of cow hide? < /strong > < /p >

< p > (1) genuine leather is a common term in the leather products market. It is a customary way for people to distinguish synthetic leather from natural leather.

It is mainly made of animal skin.

The dermis is divided into two types: head skin and two skin.

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< p > (2) the skin of the first layer is made directly from the raw skins of various animals, or the skins of cattle, pigs, horses and other animal skins with thicker cortex are sliced up and down to two layers, and the upper part of fibrous tissue is processed into various kinds of skin.

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< p > < strong > how to identify the skin and two layers of hide of the cowhide? < /strong > < /p >

< p > an effective way to distinguish head and two skin is to observe the longitudinal density of skin.

The skin of the first layer is composed of a dense thin fibrous layer and a slightly loose overlayer which is closely connected with it. It has good strength, elasticity and process plasticity.

The two layer of leather is only a loose fibrous tissue layer. Only after spraying chemical raw materials or polishing can it be used to make leather products. It maintains certain natural elasticity and process plasticity, but its strength is poor. The general products will wear or crack for 3-6 months.

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< p > dermis knowledge < a href= "//www.sjfzxm.com/news/index_c.asp" > handicraft < /a > good leather can be cut into eight layers.

The outermost is called the first layer skin, the texture is the best, it is stretched and breathable.

Two layers of leather, which need to be first polished and then painted, can be used, but with poor elasticity and easy to remove paint.

First, observe the longitudinal section, the number of layers determines the quality of the first layer of leather, there are 3 layers, the top is the dense coloring layer, the middle is a dense thin fiber layer, the lower is the fiber layer and slightly loose overlayer; the top layer leather has good strength, elasticity and process plasticity.

The two layer skin has only 2 layers -- dense coloring layer and loose pition layer, which maintain certain natural elasticity and process plasticity, but the strength is poor.

Second, near nose smell, taste determines the quality of two layers of skin will often have a strong pungent odor.

This is because there is chemical residue in the process of making leather.

The skin of the first layer is only light and fragrant, and it will never make people headache.

Third, cut a gap, the hand tear determines the quality of the first layer of yellow cattle skin can withstand 50 to 60 kilograms of pulling force, can be used for more than 3 years; two layers of leather can only withstand 15 to 20 kilograms of tension, about a year or so the leather will be broken.

Cut a piece of real leather, cut a 1 cm wide mouth, and open your hands to two layers of skin.

Fourth, tensile strength test, coloring determines the quality of the first layer of leather will not appear uneven skin condition, stretching the surface will not appear no stain.

Two layers of skin will be opened after the white line, because the color did not enter.

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