Waterproof and breathable membrane (also known as Puwei waterproof and breathable membrane) is a new type of polymer waterproof material. In terms of production process, the technical requirements of waterproof and breathable membranes are much higher than those of ordinary waterproof materials; at the same time, in terms of quality, waterproof and breathable membranes also have functional characteristics that other waterproof materials do not have.

Polyethylene foamed cotton has a non-cross-linked closed-cell structure and is a new type of environmentally friendly packaging material. The PE film is composed of low-density polyethylene fat through physical foaming to produce countless independent bubbles.

With the maturity of the primary processing technology of non-woven fabrics, more and more enterprises are turning their attention to the deep processing of non-woven fabrics, so as to increase the added value of products and the profits of enterprises as much as possible.

Composite cloth, or composite fabric, is a new type of material formed by bonding one or more layers of textile materials, non-woven materials and other functional materials. Suitable for making sofas, clothing and other textiles, it is one of the indispensable fabrics for people’s home life.

The degree to which the ink covers its base color, the better the hiding power, the worse the transparency. Transparency High and low shadow II The efficiency of ink registration and the degree of influence by the printing substrate.

First of all, we need to understand the so-called breathability, which is generally understood to be two types: breathability and vapor permeability, which are two completely different types of indicators. The former refers to ordinary air permeability, also known as windproof or air permeability; the latter refers to water vapor transmission rate, also called moisture permeability.

Plastic film gravure printing is a common printing method. Because of good color reproducibility, realism, strong three-dimensional effect, easy to carry and beautiful finished bags, it is widely used in various flexible packaging, such as food packaging, pharmaceutical packaging and other fields.

Breathable membranes in various fields of human life contain a large proportion of ultra-fine density inorganic fillers. After being processed by casting micro-embossing stretching process, micropores are formed, and the density of micropore distribution is large, which makes the breathable membrane have higher Moisture permeability, only gas and no leakage of liquid.

PE, the full name of which is Polyethylene, is the simplest polymer organic compound and the most widely used polymer material in the world today. PE protective film is based on special polyethylene (PE) plastic film, which can be divided into high-density polyethylene protective film, medium-density polyethylene and low-density polyethylene according to different densities.

Breathable film is an environmentally friendly functional material that is breathable (steam) and water-proof (liquid, bacteria, dust). The emergence of microporous breathable membrane has a history of more than 20 years, and it has developed rapidly in the past 10 years.