What is the material of pu leather? PU leather is made by treating the second and third layers of inner leather and defective leather of natural leather through a special film-making process, and covering the surface of the leather with a polyurethane PU surface layer, which makes the surface of the leather appear various colors and multi-colored. Various patterns, without losing the advantages of leather breathability and folding resistance, it has its own uniqueness in appearance and waterproof performance. The emergence of microfiber PU synthetic leather is the third generation of artificial leather. The non-woven fabric of its three-dimensional structure network creates the conditions for synthetic leather to catch up with natural leather in terms of substrate. Combining the newly developed PU slurry impregnation with open-pore structure and the processing technology of composite surface layer, this product exerts the huge surface area and strong water absorption of ultra-fine fibers, making the ultra-fine PU synthetic leather have a beam-like ultra-fine The inherent hygroscopic properties of natural leather of collagen fibers are comparable to high-grade natural leather in terms of internal microstructure, appearance texture, physical properties, and people's wearing comfort.

To avoid contact with oil, acid and alkaline substances, put the leather jacket in a ventilated place when you take it off, but do not expose it to the sun.  Wipe off water stains with a soft dry cloth, but be careful not to use water or gasoline. If you encounter rain, don't use gasoline to rub, because water will make the leather hard, gasoline can make the leather oil evaporate and dry, accelerating aging.  Leather jacket before the seasonal collection must be cleaned and polished, to the leather supplement "nutrition", so that the leather jacket to maintain a soft and smooth luster, to extend the life. The varnish available leather varnish, with a cloth dipped in some varnish on the leather jacket gently coated - two times. You can also send a professional store for better maintenance.  Collection is best to hang up, leather jacket outside cover a piece of cloth, do not fold, to prevent wrinkles in the leather jacket. If you put it in a box, it must be spread flat and do not put clothes on it.  If a leather jacket is torn or torn, it should be repaired in time. As a very seasonal fashion, leather coats are stored for a correspondingly longer period of time than other garments. Therefore, the correct maintenance and storage is particularly important. Leather clothing in the collection before preservation to dry a little, can not be exposed to the sun, hanging in a cool dry place through ventilation can be, can also turn out the lining to dry. In order to make leather clothing in a longer period of time to maintain the color beautiful, before the collection can be coated with a layer of milk or glycerin on the leather surface, so that long-term storage without discoloration. It is best to use hangers to hang in the closet to keep the leather jacket in good shape and prolong the life of the leather jacket, but do not hang with other tweed, chemical fiber clothing, available cotton cloth with the separation. It is also possible to put it in a box, but it is advisable to put it flat and not folded. This is because if you fold it for a long time, the wrinkle marks will be difficult to recede.  

Simulation leather is artificial leather, simulation leather with PVC, PU, PE and other film processing made of materials, with texture color gloss a wide range, good waterproof performance, wind and cold resistance, high utilization rate and cost-effective features, according to different strength, wear resistance, cold resistance and color, luster, pattern pattern made of simulation leather is widely used in the manufacture of clothing, shoes, leather goods, car floor rubber and other industries. Because of the innovation of the production process, in recent years the surface of the imported imitation leather on the market and almost similar to the real leather, made of it clothing, shoes, leather goods are also very popular with the public, but the cost is more expensive than the general artificial leather. Simulated leather in windproof, waterproof, wear-resistant performance better than genuine leather, and texture color gloss a wide range of clothing, shoes, leather goods and other industries have been widely used.    

Microfiber leather is the third generation of synthetic leather, compared with PVC leather and PU leather, its internal structure, performance, appearance and texture are better, compared with the real leather, its price is only 1/4-1/5 of the real leather, so in the past few years the microfiber leather industry has developed at a high speed, its application areas from the initial travel shoes, sports shoes to bags, shoes, car interiors, apparel and other fields, the consumption compound growth rate in the past 10 years In the past 10 years, the compound growth rate of consumption is more than 30%, and in the past 4 years, it is more than 20%. Microfiber leather is a low carbon economy product of chemical science progress, it adopts advanced chemical science in the production process, not only save energy, and excellent product performance. And through a variety of technological innovation upgrade, microfiber leather in the production process can effectively control pollution emissions. With the strengthening of environmental awareness, and the protection of animal concept, the supply of natural leather will be greatly restricted. In addition, because the chemical science is also progressing, microfiber leather will carry out more process improvement in the future, microfiber leather is not going to be infinitely close to the real leather, but in more performance indicators to go beyond it. It is expected that in the near future, microfiber leather will occupy a broader market space!

The distinction between PU and PVC is still relatively easy. Judging from the corners, PU base cloth is much thicker than PVC, and the hand feel is different; PU has a softer hand feel, while PVC is harder; it can also be burned with fire, and PU has a much lighter smell than PVC. It can be distinguished by the method of soaking in gasoline: use a small piece of fabric, put it in gasoline for half an hour, and then take it out. If it is PVC artificial leather, it will be hard and brittle; if it is PU synthetic leather, it will not be hard and brittle. There are also some differences in the range of applications of the two materials. In footwear, PVC leather is mainly used for linings or non-load-bearing parts, or in the manufacture of children's shoes. PU leather can be used for footwear fabrics or load-bearing parts. For luggage, PVC leather is used more. This is because the items in the bag, unlike the feet worn by the shoes, do not radiate heat and do not carry personal weight.

Vegan leather mainly refers to synthetic products. Most vegan leather is not processed cowhide or sheepskin, but is made of PVC and PU. Of course, there are some innovative products based on natural ingredients, such as leather made from cork, tree bark, pineapple leaves or apple peel. Manufacturers of high-quality vegan leather argue that most of it looks exactly like the real thing, but it doesn't perfect over time like animal leather does. Why is vegan leather growing in popularity? Because environmentally conscious consumers don't just worry about food, they think about food, clothing, housing and transportation. There is a strong attraction to having an alternative that is almost identical to animal leather products and thus avoids causing animal suffering. Some companies are already making products that avoid animal skins, and Tesla is even launching a "completely vegetarian" car. They are turning to synthetic and natural materials to make leather.

Dermis  Genuine leather refers to all kinds of original skins stripped from animals, such as cow skin, pig skin, sheep skin, crocodile skin, etc. The head skin is directly processed from the raw skin of various animals, or the thick skin of cattle, pigs, horses and other animals is cut into upper and lower layers after depilation, and the upper part with tight fibrous tissue is processed into various head skin. For example, the most common cowhide in life is divided into the first layer and the second layer. The second layer of leather, also known as film covered leather, is composed of the second layer of animal skin or leftover material broken and PU resin. The second layer of leather is generally weaker than the first layer of cow leather in toughness, feel and wear resistance. Although it has the quality of leather, it has no real leather.    Faux Leather Faux leather refers to artificial leather, or artificial leather. Common products include PU, PVC and microfiber. Sometimes some businesses like to add the word "leather" after these names when writing ingredients on the label to confuse the public. For example, PU leather and microfiber leather, but they are not genuine leather. Ultrafiber leather, ordinary PU and PVC are products of artificial synthetic leather at different development stages and different technical levels. The surface layer of microfiber leather and ordinary PU is polyurethane resin, Ordinary PU is made of knitted fabric, woven fabric or non-woven fabric as the base fabric, and then coated with polyurethane resin. The microfiber skin is made of superfine fiber non-woven fabric with three-dimensional structure as the base cloth, coated with high-performance polyurethane resin. The super fiber leather is generally superior to other artificial leather in the sense of imitation leather and practical performance.   In general, the price of leather products is higher than that of imitation leather products, especially the first layer of leather, which tends to give people the feeling that leather is better than artificial leather. In fact, this is not the case. In many cases, the price of leather is due to the scarcity of its sources and the cumbersome treatment process of animal skin. However, with the development of technology, many excellent properties of artificial leather can not be achieved by leather, such as WINIW microfiber leather, because it is firm and wear-resistant, Low loss, non killing, highly respected in Europe and the United States, has gradually become the preferred material to replace leather.  

The fundamental reason for the softness of leather is that during leather making, a leather simulation oil with a good degree of bonding with the leather fibers is introduced into the interior of the animal skin to form an oil film that fully covers the surface of the fibers in the leather, that is, between the surface of the fibers in the leather. It is separated by a layer of leather of suitable thickness to simulate an oil film, so that the friction between the fibers inside the leather is equivalent to the friction of oil molecules, so the leather will be very soft. The principle is similar to that of a sponge, except that the inner surface fibers of the dermis are separated by an oil film, so that there are slidable pores between the inner dermis, but its pores are smaller than those of a sponge, and the distribution of fibers on the inner surface of the dermis is not as good as that of a sponge. There are rules.    However, in the natural state, the oil introduced into the leather will gradually volatilize and lose over time, or the oil film will be damaged due to other reasons. If it is hydrolyzed in water or in a high temperature environment, the leather simulates the oil film of oil. If it is destroyed, the oil will be volatilized and lost, so the fibers inside the leather will stick to each other, making the leather hard and brittle. Therefore, when the inner oil film of the leather is destroyed or the oil is lost, the surface between the inner fibers of the leather should be re-injected with high-quality oil that forms an oil film.   If you are intested in PU Leather, please contact WiniwPULeather at www.winiwpuleather.com.  

As we all know, the microfiber skin is made by coating, impregnating resin or laminating film on the microfiber base cloth and finishing it. Then the base cloth, as the base cloth of the microfiber skin, has a great influence on the performance of the microfiber skin, and the base cloth occupies the main part of the cost of the microfiber skin. The early PVC artificial leather and PU synthetic leather are basically made of knitted fabric, woven fabric, or synthetic fiber non-woven fabric as the base fabric. The important reason why the microfiber skin is different from PVC and ordinary PU is that it has a three-dimensional microfiber non-woven fabric as the base fabric. The core technology of this base fabric is the island-type microfiber processing technology invented by Japan's Toray. . Because it is very similar to the superfine collagen fibers of natural leather, the microfiber leather made of this base fabric is similar to natural leather in appearance, feel and physical properties. Then in order to ensure the product quality of microfiber leather, there are also very strict requirements for the base fabric. First of all, in terms of organizational structure, the microfiber skin base fabric is required to have a dense three-dimensional structure, the fibers are tightly intertwined with each other, and the structure is uniform. Secondly, in terms of appearance and feel, the surface of the microfiber base cloth should be smooth, without various stitches and holes. In addition, in terms of performance, the base fabric is required to be soft and comfortable, breathable and breathable, with high wear resistance and high strength. Microfiber leather is now widely used, and different application fields have different requirements for microfiber base cloth. For example, the microfiber leather base fabric used in shoemaking is the most demanding in terms of performance, because the microfiber shoe material is required to withstand extremely high permanent deformation, as well as high wear resistance and mechanical strength. WINIW's microfiber leather is deeply loved by everyone. Our products are of good quality, tear-resistant and wear-resistant.

Driven by the increasingly upgraded concept of quality life, consumers have higher and higher requirements for sofas. Traditional PU leather can no longer meet the quality requirements of high-end sofas. Sofa microfiber leather can effectively make up for this vacancy. In fact, it is not uncommon for microfiber leather to be used on sofas, but the old type of lychee pattern microfiber leather seems to be more and more popular, which is incompatible with the exquisite quality. And traditional PU leather, although there are many styles, but the quality has made more and more manufacturers and consumers lose confidence. The market needs high-quality, durable, low-key and luxurious sofa leather, so WINIW microfiber oil wax microfiber leather was born. As we all know, the leather used on the sofa must be soft to the touch and high in comfort; it must also be resistant to aging, friction, and torsion; tear strength and peel strength must also pass the test. This oil-waxed microfiber leather of WINIW microfiber leather has outstanding physical properties. It is produced in accordance with stricter shoe material standards than sofa materials. It can be said that the quality of sofas is very guaranteed. What is even more rare is that this microfiber leather imitates the style of an oily leather, which is shiny and retro, as if a layer of oil wax has been rubbed into the surface of the leather, giving people a feeling of nostalgia and vicissitudes. Many customers saw this material on our website and were attracted by the appearance, but when they actually got it, they were shocked by the strong imitation leather and silky feel, and sighed, this is a good product. material! At present, the thickness of this microfiber leather material is optional, there are more than a dozen popular colors, and the door width is 1.37 meters. The sofa technology is different, and the thickness of the microfiber leather also has different requirements, of course, it can also be customized. Say goodbye to expensive top layer leather and inferior PU leather, WINIW microfiber sofa leather is worth having.

What is the Material of Boxing Gloves? Boxing gloves are an indispensable tool in boxing games. They are generally composed of two parts: the outer skin and the inner core. The materials of the two parts are different: Skin Material The outer skin of boxing gloves is generally made of leather. There are three materials: PU, microfiber and genuine leather. PU is light and comfortable but not resistant to grinding, but it is cheaper than the price. Many non-professional boxers generally like to buy PU materials; microfiber is wear-resistant, soft, and breathable, which is the material that many big brands like to use; leather is more expensive, so most professional players will choose it.  Inner Liner Material In terms of the inner material of boxing gloves, there are mainly horsehair, compressed sponge, EV small foam material, latex, silicone and other materials. Many professional players choose horsehair, because horsehair is very hard and almost inflexible, and it is very painful to fight.

Leather: There is no harmful gas when burning itself, but a large amount of aniline dyes, chromium salts and other chemical reagents are used in the processing of leather. During the combustion process, there will be compounds that release nitrogen (nitrogen monoxide, nitrogen dioxide), sulfur dioxide and other harmful substances. Irritating gas, and the dermis is easy to chapped. PU Leather: burning will produce some harmful and irritating plastic gases such as hydrogen cyanide, carbon monoxide, ammonia, nitrogen compounds (nitric oxide, nitrogen dioxide, etc.) PVC Leather: Dioxin and hydrogen chloride are produced in the combustion process and production process. Dioxins and hydrogen chloride are highly toxic substances that can cause cancer and other conditions, and produce a pungent plastic odor. (The main odor comes from solvents, finishing agents, fatliquors, plasticizers and mildew inhibitors, etc.) Silicone Leather: no harmful gas is released, and the burning process is refreshing and odorless.