The Distinction And Performance Of Leather And Leather

The distinction and performance of leather and leather

At present, the market is popular.

There are two main categories of leather and artificial leather. Synthetic leather and synthetic leather are made of textile base or non-woven fabric base, respectively coated with polyurethane and treated with special foam. They have a superficial feel like leather, but they are not as good as air permeability, wear resistance and cold resistance.

How to distinguish genuine and fake leather products?

1. leather surface: natural leather has its own special natural pattern, leather surface luster is natural, when hand pressing or kneading leather surface, the leather surface has no dead wrinkle or dead wrinkle, no cracks, and the leather of artificial leather is very similar.

But carefully look at the pattern is not natural, the gloss is brighter than natural leather, the color is more bright.

2. leather: natural leather, soft and tough handle, while imitation leather is soft, but tough. It is hard to wear when the weather is cold.

When the leather is tortuous by hand, the natural leather will return to the natural and the elasticity is better, while the imitation leather is stiff and elastic.

3. incision: the color of natural leather cuts is uniform and the fibers are clear and visible.

The cut of imitation leather has no sense of natural leather fiber, or the fiber and resin at the bottom can be seen, or the two layers of the base cloth and resin are seen from the incision.

4. leather inside: natural leather is smooth, smooth with pores and patterns.

The reverse side of the leather has obvious fiber bundles, which are plush and even.

In the imitation leather products, some of the synthetic leather is the same with the opposite side. The gloss inside and outside the leather is good and smooth. Some artificial leather is also different from the reverse side, and the leather can see the obvious bottom cloth. However, some leather faces are similar to natural leather, and the leather has the natural like leather fluff, so we should carefully observe the difference between the genuine and the fake varieties.

Sheep leather: it is characterized by its granules, pores, oblate, deeply sloping into the leather, and several pores arranged in a group, arranged like scales or serrated.

The features of the pattern are "water ripples".

Sheep leather is also divided into sheep leather and goat leather.

Sheep leather: there are more fat in the cortex. The fiber of the leather is slack, very soft, and its grain is fine, and its elongation is large, but it is not strong.

Goat leather: fat content in the cortex is less, fiber structure is more plump than sheep leather, solid and durable.

The difference between the two is that sheep leather is smooth and smooth, and the pores of goat leather are clear and elastic.

No matter what kind of clothing made of sheep leather products has beautiful patterns, the luster is soft and natural, light, soft and elastic, but the strength is not as good as cattle leather and pig leather.

The epidermis is located under the hair and is closely attached to the upper part of the dermis, and is composed of different epidermal cells.

The thickness of the epidermis varies from animal to animal, for example, the thickness of the skin of the cowhide is 0.5 to 1.5% of the total thickness, and that of sheep skins and goat skins is 2 to 3%, while that of pigskin is 2 to 5%.

The dermis is located under the epidermis, between the epidermis and the subcutaneous tissue, and is the main part of the skin.

Its weight or thickness accounts for more than 90% of raw skins.

The raw material of leather making is animal skins. Although the most common products in our life are pig skins, cowhide and sheepskin, most animal skins can be used for tanning.

Only cowhide, pig skin and sheepskin are of good quality and large yield. They are the main raw materials for leather making.

Although there are many kinds of raw materials for leather making, according to a series of laws and regulations issued by the International Animal Protection Ordinance, the raw materials used for production are restricted to a certain extent. The commonly used leather is cattle leather, sheep leather, pig leather and horse leather.

Characteristics and differences of leather materials

The first layer of leather and two layers of leather: according to the leather layer, there are first and two layers of leather. The top layer leather is grain leather, shaving leather, embossed leather, special effect leather and embossed leather. The two layer leather is divided into two layers of pig and two layers of leather.

Grain leather: in many leather varieties, full grain leather tops 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: it is made by grinding the 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 lost its original surface state.

Full grain leather characteristics: soft leather, wrinkled leather, front leather and so on.

Its characteristics are complete retention of granules, clear pores, fine, tight, irregular arrangement, and full, meticulous and rich appearance.

Half grain leather characteristics: in the production process, the equipment is processed and grinded into only half of the grain surface, so it is called half grain leather.

Maintain the natural leather part of the style, the pores are flat and oval, irregular arrangement, hard feel, the general selection of poor grade of raw material skin.

So it belongs to mid-range leather.

Due to the particularity of the process, its surface has no disability and scars, and its utilization rate is high. Its finished products are not easy to deform, so they are generally used in large box products.

Shaving cowhide characteristics: also known as "smooth cowhide", the market is also known as fog surface, bright surface cowhide.

It is characterized by smooth, smooth surface, no pores and skin veins. In the process of making, the surface of the surface is slightly grind and modified, and a coloured resin is sprayed on the leather to hide the surface texture of the leather, and then spray the waterborne light penetrating resin, so it is a high-grade leather.

In particular, the bright, elegant and gorgeous style of bright leather is the popular leather of fashion leather.

Special effect leather characteristics: the manufacturing process requires the same finishing cowhide. Only the colored resin is coated with beads, metal aluminum or metal copper elements to spray the leather synthetically, and then roll a layer of waterborne pparent resin. The finished products have various luster, bright colors, beautiful and luxurious villages, and are currently popular leather, which belongs to mid-range leather.

Characteristics of embossed cowhide: use patterned flower plates (aluminum and copper) to warm the leather surface to suppress various patterns and make them into a style of leather.

At present, the market is popular with "litchi pattern cowhide", which is to use a flower plate with a litchi pattern, and the name is also called "litchi pattern cowhide".

Two layers of leather: thick skins are made from split 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.

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

With the change of technology, it has also been made into various grades, such as imported two layers of cowhide. Because of its unique technology, stable quality and novel varieties, the price and grade of the top grade leather are no less than that of the top layer of leather.

Also known as Napa cowhide soft upper leather, the English Name: NAPPA NAPPA. came from the South Korean current. At that time, Chinese tannery technology was still very backward, and Napa leather was just like a product, so the name of Napa leather was left behind for a long time.

The technical revolution of Napa leather in South Korea in the early 70s and early 80s, the Korean garment industry reached a certain peak. The leather industry soft leather Napa leather has also been well applied. Soft touch is the biggest feature of Napa leather. Surface skid is also one of the characteristics of Napa leather. Later, adding the thickness of cowhide to the Napa leather, it used to make shoes as well as all the advantages of Napa leather. Therefore, Napa leather has gradually become popular in the footwear industry. Napa Ge is actually used in China in the late 80s and early 90s.

The popularity of Napa leather in the footwear industry is in Wenzhou, Zhejiang. Since 90s, Napa leather has been used as a casual ingredient for casual shoes.