Knowledge Of Leather Is Great.

< p > the English name Nubuck of Niu Ba leather is also called buffalo skin or Niu Bago.

The Niba leather is wet PU and PU slurry forms an upright bubble in the curing process, and it has a fluffy touch after grinding.

Because of its upright bubble, it is called "Niu Ba leather" -NUBUCK. Because it needs to be ground, it is also known as "abrasive skin". Because of its unique touch, it is also called "suede leather".

Niu Bago has a suede feel. The skin is thick and soft, its surface is color, and its fur and skin veins are natural. It does not care about symmetry and consistency. It is mainly used for casual shoes.

Keep away from corrosive objects and oily objects, gently pat dust and mud in the direction of sponges, and then wipe clean with semi dry towels, and the same color grind sanding agent is artificial sanding skin, it looks a bit like reverse skin, but it is more smooth and interesting to see some knowledge about leather.

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< p > 1, < a href= "http://www.91se91.com/news/index_c.asp" > Leather > /a > classification: < /p >

< p > leather is mainly divided into two categories: natural leather and substitute leather.

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< p > two, leather general characteristics: < /p >

* P > (1) natural leather: cowhide, sheepskin, pig skin, leather, shaving leather, etc. < /p >

< p > 1, cowhide < /p >.

< p > (1) yellow cattle skin: pores are small and shallow, round and evenly distributed, and the pores are straight and extended to the inside. The handle is full, smooth, soft, thin, solid and elastic.

(can be used in six levels) < /p >

< p > (2) buffalo skins: coarse, deep, thick skins, rough skins and poor texture.

Generally used for soles.

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< p > 2, sheepskin < /p >.

< p > (1) goat skin: the leather leather veins are semicircular arc, with 2 to 4 needle pores arranged on the arc, surrounded by a large number of fine hair pores, the pores are arranged in a fish scale, and the handle is full of elongation; < /p >

< p > (2) sheep skin: leather surface is smooth and smooth, thin skin plate, pores are small, flat, round, composed of a number of pores, a row of row, uniform color, leather is full, soft, extensible, leather clean, no greasy feeling, but low intensity.

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< p > 3, pig skin: rough leather, with obvious hair holes, triangular arrangement, poor elasticity, poor aesthetic effect, durable and firm.

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< p > 4, mixed skin (horse skin, donkey skin, etc.): slightly similar to cattle hide, pores are oval, pores are shallow, not obvious, grain surface is more delicate than cowhide, but slightly larger than the pores of cattle skin.

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< p > 5, shaving leather: leather made of cowhide, horse skin and donkey skin is made of modified leather without any original characteristics, but its color is uniform, beautiful and soft, but the pores are cracked.

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< p > (two) substitute leather: < /p >

< p > 1, regenerated leather: the leftover bits and pieces of the leather are crushed into fibrous form, together with plant fiber adhesive and various kinds of compounding agents, pressed and molded, used for touring shoes and belts.

Because the raw material of regenerated leather is mainly the waste of natural leather, regenerated leather has certain hygroscopicity, permeability and permeability, and also has certain heat resistance, abrasion resistance and elasticity, but its strength is small and tear property is poor.

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< p > 2, artificial leather: synthetic resin based on textile or knitted materials, which belongs to imitation leather products. The coating material is mainly PVC resin, its luster is brighter, its color is bright and varied, and its surface has no scar marks.

Imitation sheep skin looks like sheep skin, and looks carefully without pores.

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< p > 3, synthetic leather: made of non-woven fabrics and coated with new resin material.

Hygroscopicity and breathability are excellent. The coating is a new material, polyurethane, with good handle, abrasion resistance, bending resistance and better strength than artificial leather.

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< p > 4, PU leather: (Gao Ji) the exterior coating is highly emulation, and can emit various patterns and bright colors, but it has poor hygroscopicity, poor temperature difference and tear. It is easy to expand when incisions, but the quality is uniform, and the surface is free from disability and moldy. It has certain resistance to water and solvent.

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< p > three, all kinds of leather products should meet the quality standard < /p >.

< p > adhesive shoes: QB/T1002 - 97 Leather Sandals: QB/T2307 - 97 < /p >

< p > leather clothing: QB/T1615 - 97 back pack: QB/T1333 - 97 < /p >

< p > briefcase: QB/T2277 - 96 leather tape: QB/T1618 - 92 < /p >

< p > Leather Wallet: QB/T1619 - 92 leather gloves: QB/T1584 - 92 < /p >

< p > > a href= "http://www.91se91.com/news/index_x.asp" > travel shoes < /a >: QB/T1507 - 94 < /p >

< p > four, dermis sign < /p >.

< p > 1, concept: it refers to the trademark registered by the China Leather Industry Association in the State Administration for Industry and commerce. It is a special sign of natural leather products.

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< p > 2, meaning < /p >.

< p > (1) the product is made of natural leather.

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< p > (2) the product is a high quality medium and high grade commodity. Its quality is not only in line with the relevant industry standards and national standards, but also must comply with the relevant provisions of the technical manual of leather labels.

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< p > (3) the production enterprise has a good after-sale service system.

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< p > it is not a genuine leather product that is not made of genuine leather. It is not allowed to wear a genuine leather logo. If you want to wear a genuine leather logo, you need to pass the rigorous examination and approval of the China Leather Industry Association before you can hang it up.

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< p > 3, pattern: the registered trademark of the genuine leather logo is an artistic deformable pattern consisting of a sheep, a pair of horns and a leather shape.

The overall pattern is round and drum shaped, with three letters in the center of the design. It is the abbreviation of the real leather product. The color of the main body is black with white background, and only three letters are red. GLP

Design implication: cattle, sheep and pigs are the three main natural leather materials of leather products, and their designs are round and drum shaped. They symbolize the drum of the main processing equipment of leather industry, and on the other hand, symbolize the development of leather industry.

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< p > 4, < a href= "http://www.91se91.com/news/index_f.asp" > Genuine Leather > /a > sign: Genuine Leather signs are the only signs of genuine leather logo products. Leather products are labeled with genuine leather signs, indicating that this product is a genuine leather logo product.

Consumers can only enjoy the after-sales service of distributors, manufacturers and China Leather Industry Association after buying only leather products with leather labels attached to them.

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< p > 5, leather logo plate specifications: < /p >

< p > A is 3.5CM * 5CM, commonly used for leather shoes and small leather parts.

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< p > B is 7CM * 5CM, generally used for fur clothing and large leather parts.

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< p > the book type leather logo sign: the cover is printed with the registered logo of the genuine leather logo, the blue and false shading on the front cover and the bottom cover. The third seal introduces the anti fake technology of the real leather mark, and how the consumer protects the legitimate rights and interests of the real leather sign and the telephone of the Management Office of the leather mark.

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< p > 6, in order to prevent counterfeit, the genuine logo signs have adopted the following anti-counterfeiting measures in printing: at the same time, two kinds of anti-counterfeiting technology are printed by fluorescence and laser; the signs are printed by two factories, and then combined into genuine products; there are six confidential measures on the front and the front of the signs.

The simplest way to distinguish is to use the ultraviolet lamp (ticket identifier) to irradiate the front of the sign, and the words "red leather" and "HQ" will appear.

The number under the reverse side of the sign will be changed from light red to yellow under the irradiation of ultraviolet lamp. The other four confidential measures will not be announced, which will serve as the basis for the identification of arbitration.

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