How to make skin?
Manufacturers of the whole world, in pursuit of profit, have achieved incredible similarities between artificial and genuine leather. In order not to make a mistake when buying, you need to know the differences between these materials. Once it was believed that the cover of natural leather is warm to the touch and with a rather characteristic aroma. At the moment, these differences do not make sense, since the way the skin is made of artificial materials can completely imitate natural. For example, eco-leather is also warm to the touch. And many manufacturers produce synthetic leather with a natural smell. Usually, all products of well-known companies have labels with characteristic symbols. The presence of a label says a lot, i.e. that the manufacturer - firm meets world standards, and you, in any case, will not be disappointed in the acquisition.
Such label as "rhombus" means that the product is made of artificial material. In the case when there are no labels, then use this method: you need to consider a section of the skin, such places where the inner surface is not closed.In the event that it is an artificial leather, its basis will be visible - fabric or polyamide.
How the skin is made from artificial materials is a complex process. Technologically, the manufacture of soft artificial leather is quite diverse, but occurs in three main stages: the preparation of a fibrous base, the application of a polymer coating and final finishing. Usually, knitted fabric, paper and fabrics, a variety of non-woven materials of synthetic or natural fibers are used for fiber bases. The properties of artificial leather are very much determined by the base. It is from the base material that the quality of the skin will depend, such as: the ability to drape, strength, stretchability in different directions, etc.
To increase the density and strength of the base, the fibers are usually impregnated with polymer compositions. After that, a coating is applied to the surface of such a base - from solutions and dispersions of polymers or melts. The technology of polymer processing in dispersions or solutions is especially popular. While using the reverse portable method, on a special paper lining, which has a embossed relief,the polymer dispersion or solution is applied in succession in the reverse order, starting with the outer finishing layer.
Types of basics
How the skin is made depends on which base for the artificial skin is used.
- Polyurethane. For the basis of PU leather using cotton fabric, resistant to mechanical tension and stress. Polyurethane can imitate natural leather, thanks to a soft and porous polyurethane coating. The advantages of such leather are - frost resistance, durability, and at the same time, polyurethane is able to pass air, which increases its hygroscopicity. The upper polyurethane layer is easy to paint, you can also apply a variety of drawings on it. And this, in turn, increases the possibility of design decisions.
- Polyvinyl chloride Or PVC. This material basis for artificial leather is incredibly resistant to environmental influences. It is even used in the manufacture of plastic windows. Such properties are very useful for the production of artificial leather. How to make leather from PVC or PVC has a difference from the base of polyurethane. The basis for PVC leather is not so resistant to cold, but it is more waterproof. Also, PVC in the base of artificial leather ensures its durability.
- Microfiber.Excellently helps in the production of microfiber, a synthetic substitute for skin, created on the basis of microfibers. The basis for artificial leather made of microfiber allows increasing moisture absorption, softness and color fastness, even distribution of static electricity. An incredible advantage of microfiber, according to manufacturers, is an excellent opportunity to pass air through micropores. Such material perfectly allows to keep heat, and in a heat it is very hygienic. The basis for artificial leather made of microfiber is commonly used in the manufacture of sports shoes.
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