What Is The Definition Of Synthetic Leather Industry?

What is the definition of the industry? In 1980s, there were many varieties of synthetic leather. Besides the common characteristics of synthetic fiber non-woven fabric base and polyurethane micro porous surface layer, there were also differences among varieties.

The definition and classification of synthetic leather industry are as follows.

Such as non-woven fabrics and processing technology are different; other base base impregnation solution, such as butadiene or acrylonitrile butadiene latex, in order to get a special combination of non-woven fabric and polymer; different levels of structure, three layers, two tier structure coexist, and also used for making single layer structure of clothing.

In order to obtain different surface styles, in addition to producing smooth leather with flower roller and rubbing leather, the surface of the microporous layer is also made into velvet, called suede synthetic leather.

In order to avoid the destruction of the microporous structure by rolling grain, pfer and coating method is also used to make dry wet combination leather.

And accessories.

Definition of synthetic leather industry

The market research and analysis report of synthetic leather shows that the composition and structure of the simulated natural leather can be used as its substitute material.

Usually, the impregnated non-woven fabric is reticular layer, and the microporous polyurethane layer is used as the granular layer.

Its positive and negative surfaces are very similar to leather and have certain air permeability, which is closer to natural leather than ordinary leather.

Widely used in making shoes.

Bags and balls.

Classification of synthetic leather industry

1. Waterborne surface treatment synthetic leather.

This kind of water based leather is to replace the surface treatment layer with water-based surface treatment agent only.

Although this synthetic leather can not be called the water-based synthetic leather in the complete sense, its significance is also very significant.

Because the style of synthetic leather depends mainly on surface treatment, the solvents used in surface treatment agents are not only various, but also difficult to recycle, and even destroy the environment even more than DMF.

If this part is fully realized, its influence will also be enormous.

In addition, there are ten kinds of synthetic leather, such as crazy horse, sheep bar, polishing and so on, which is the key link of synthetic leather matching. Only the rich and colorful water treatment agent can match the market demand better.

It is understood that this will be the most urgent and fastest developing aspect of synthetic leather in recent years.

2, water-based dry synthetic leather

The key of this kind of waterborne leather is to change the dry surface layer and adhesive layer to the surface and adhesive layer of the waterborne resin.

This type of water based leather is relatively easy to achieve.

Although such problems will be encountered in the application of technology, we can basically overcome them.

This is also one of the most widely used products in water-based synthetic leather.

3, waterborne semi PU synthetic leather

The key of this kind of waterborne leather is the PVC foaming layer as the bottom layer, and the surface layer adopts waterborne PU resin.

Compared with water-based dry synthetic leather, this kind of waterborne leather has a PVC foam layer, so it has better hand feel than synthetic dry synthetic leather. It is also one of the best water-based synthetic leather at present.

It has some advantages of PVC leather and PU leather.

This is also one of the most widely used products in water-based synthetic leather, mainly used in sofa leather.

4. Water-based wet imitation synthetic leather

This kind of waterborne leather can be divided into two kinds in essence. One is the use of waterborne foaming resin to replace the traditional DMF foam layer.

This technique is essentially a dry process, but it is a foaming layer with a porous structure (spherical obturator bubble) made of a physical method of mechanical foaming by water based resin instead of a solvent type foaming layer.

Because it is a foaming layer, but the base cloth has not been impregnated, nor has it formed a vertical bubble structure similar to that formed after DMF precipitation.

However, because of physical foaming, there are some problems in the uniformity and stability of the foams in mass production.

At present, this kind of waterborne synthetic leather has been produced in a large quantity, but it still needs further exploration and improvement for mass application. However, some companies claim that the technology has made a breakthrough.

The other is to use solvent free PU resin as foaming layer and waterborne resin as the surface layer.

This is also a future development prospect of a larger category.

5. All wet synthetic leather.

This type of waterborne leather is the highest level of synthetic leather product.

The key is to solidify the waterborne synthetic leather Base containing foam layer by using waterborne resin soaked base cloth.

This kind of waterborne synthetic leather is currently developing very little, such as Lanzhou Ke Tian has been successfully developed, but the market needs to be popularized and tested. It still takes a while.

Market participants still have many doubts about whether the product can achieve the performance of synthetic leather made from traditional DMF wet process.

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The world's first water-based wet base production line

Structurally speaking, waterborne synthetic leather can be divided into five main categories. According to the difference of base cloth and the processing technology of the latter, there are different kinds of water-based synthetic leather products with different styles in the market. There are three examples:

1, water-based suede synthetic leather (also known as water-based imitation microfiber synthetic leather).

The product is coated with waterborne polyurethane slurry on the knitted base fabric. The surface of the coated product is scraped and smoothed through the scraper, and then the drying machine is used for drying and shaping. Then, the double side grinding is used to make the suede synthetic leather, which can be used for all kinds of sports shoes and leisure shoes, and can also be used for bags, garments and various decorative materials.

It also has a single face pile that can be used as a dry product instead of wet bass. It can be used for shoe leather, luggage leather, sofa, automobile leather and so on. At the same time, various types of flowers can be pressed on the surface.

This is a kind of waterborne synthetic leather product which has been developed successfully. It has been widely applied in Jinjiang, Fujian and other places. The products were developed most successfully by Haining Da Hong Ma company and have already obtained patent for invention.

2, waterborne microfiber synthetic leather

The product is water based dry microfiber and water-based wet microfiber.

Among them, the highest technical content is water based wet spinning microfiber, that is, waterborne wet resin resin impregnated microfiber cloth.

It is understood that this product will surpass the ordinary microfiber leather in terms of performance, physical properties and hand feeling. However, it is still difficult to achieve mass production. Many domestic companies are carrying out research and development work.

3, water-based orange petal microfiber synthetic leather -- truly comprehensive environmental protection

Such products are undoubtedly the most prominent concept of environmental protection at present.

Traditional microfiber is toluene reduction and alkali decrement technology. Organic solvents are still used and residues in the production process and finished products, while orange petal microfiber is used for producing waterborne synthetic leather products by physical method and water based resin.

It can be seen that water-based synthetic leather has gradually penetrated into all aspects of synthetic leather products and gradually entered the market. A number of forerunners, such as Baolong Industrial, Warren leather plastic, Changfeng artificial leather, Ming Chuan technology, Hongxing Ricky, Haining red horse, Jinshan plastic and Wuzhou industrial, have gradually emerged in the domestic market, such as Baolong industry, Warren leather plastic, Changfeng artificial leather, Hongfeng, Jinshan plastic and Wuzhou industries. Although there are still some such problems, but technology is improving and the market is expanding, we have reason to believe that the future of environment-friendly synthetic leather such as water will be bright.