Fabric Knowledge And Identification Course - Leather Fabric Chapter

Identification

"Genuine leather" is a common word in the leather products market. It is a habit used to distinguish natural leather from synthetic leather. In the consumer's concept, "real leather" also has a false meaning.

In fact, leather is leather, which is mainly made from mammal skins.

There are many kinds of dermis, different varieties, different structures, different quality and equal price.

Therefore, leather is both a general term for all natural leather and a vague logo on the commodity market.

The natural leather is mainly classified into pig leather, cow leather, sheep leather, horse leather, donkey leather and kangaroo leather, and a small amount of fish leather, reptile leather, amphibian leather, etc.

And so on.

Cattle leather is also divided into cattle leather, buffalo leather, yak leather and calf leather. Sheepskin leather is divided into sheep leather and goat leather.

According to their layers, there are top layer leather and two layer leather, of which the top layer leather is full grain leather and shaving leather, and the two layer leather has two layers of leather and two layers of leather.

In the main types of leather, yellow cattle leather and sheep leather have a flat surface, small fur eyes, and tight inner structure. The leather has good plump and elastic properties, and has good physical properties.

Therefore, top grade yellow cattle leather and sheep leather are generally used as leather products of high-grade products, and their prices are higher than that of bulk leather.

Among all kinds of leather, full grain leather should be top of the list, because it is made from the superior raw material of less damaged skin. The leather surface is kept in good natural condition, and the coating is thin, which can show the natural flower pattern of animal skin.

It is not only wearable, but also has good air permeability.

Shaving leather is made by grinding the leather surface after grinding, and then pressing the corresponding pattern.

In fact, it is "cosmetic" for the natural leather surface with disability or roughness.

This kind of leather almost loses its original surface state, the coating layer is thicker, and its wear resistance and permeability are worse than full grain leather.

It is made of thick skinned leather machine. The top layer is used to make full grain leather or shaving leather. The two layer is made of two layers of leather after finishing or laminating. Its fastness and wear resistance are poor. It is the cheapest kind of leather.

Now let's introduce some commonly used methods.

First, touch: that is to touch leather surface with hand, if it is slippery, soft, plump and elastic, it is genuine leather. Generally, synthetic leather surface is harsh, rigid and soft.

Two, see: look at the leather leather has more clear pores, patterns, yellow cattle skin has more symmetrical pores, yak skin has coarse and sparse pores, goats skin has scaly pores, pig skin has triangular thick pores, and artificial leather, although also imitate the pores, but not clear.

The following are the characteristics and identification methods of pig leather, Ma Ji, cow leather and sheep leather: cow leather is thin, high strength, and most suitable for making leather shoes; sheepskin leather is light, thin and soft, and is the ideal fabric for leather garments; pig leather has good breathability and moisture permeability, and is suitable for making underwear and children's articles; horse leather has stronger fiber structure and higher strength, and it has better effect for making leather trousers and leather boots.

Generally speaking, the size, density and distribution of pores on leather surface are the main basis for distinguishing cattle leather, pig leather, horse leather and sheep leather.

Pigskin leather: the pores on the surface of the leather are round and thick, and are sloped into the leather.

The pores are arranged in three groups, with many small triangular patterns on the leather surface.

Cattle leather: yellow cattle leather and buffalo leather are called cow leather, but there are some differences between the two.

The pores on the surface of the yellow cattle leather are round, straight into the leather, and the pores are dense and uniform, arranged irregularly, and appear to be full of stars.

The surface of buffalo leather is larger than that of yellow cattle leather, and its pores are less than that of yellow cattle leather.

Leather: the pores on the leather surface are oval, larger than the pores of yellow cattle leather, and arranged regularly.

The pores of the grain surface are oblate, and the pores are clear.

Three, smell: all real leather has the smell of leather, and artificial leather has strong pungent odor.

Four, lighting: from the back of the real leather and artificial leather, a little fiber is torn off. After burning, all the pungent odour is made of artificial leather, and the real leather is the one that sends out the smell of hair and does not knot hard lumps.

Dermal marker

The genuine leather logo is a certification mark registered by the State Administration for Industry and commerce. The leather products with genuine leather logo have three characteristics: 1, the product is made of high quality leather; 2, the product is a well made medium and high grade product; 3, consumers buy leather products with genuine leather signs and enjoy good after-sale service.

Products that are not made of genuine leather can not be labeled with genuine leather. If you want to wear genuine leather labels, you must pass the rigorous examination and approval of the China Leather Industry Association before you can hang them.

Every year, China leather industry association carries out quality inspection to ensure product quality.

The registered trademark of the genuine leather logo is an artistic distortion consisting of a sheep, a pair of horns and a leather shape.

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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.