Technical Parameters Of Fabric For Assault Clothing

　　 Waterproofing property The standard of waterproofing is water resistance. How much MM of water per square centimeter can bear is not permeated by water for one hour. The standard of breathability is the amount of water that can be permeated through 24 hours per square centimeter area. General waterproof nylon waterproof degree is only 1000-2000mm, can withstand a short time of rain; 5000mm for a long time to rain; the US military department standard is 7000mm.

The key point of all waterproof indicators is not how much water is prevented, but the pressure and time of water. A simple understanding is that in natural conditions, the size and speed of raindrops and the time exposed to rain will cause different waterproofing effects. In addition, the actual individual differences in actual use and the difference in clothing design will be different. According to different types of sports, the influence of natural environment and physical condition is the biggest. It is also considered differently when making and designing garments. All soaking through static long time is a wrong test method. Too long time and too much pressure will cause waterproofing failure. I understand that the long time soaking and watertight products are definitely not breathable. Now we have to understand why many times the first thing to wear is the back and shoulders.

Breathability: Air permeability The specifications are g/m/24hr (steam volume per unit area in fixed time). Therefore, TPU.PES composite fabrics have advantages (mainly cost advantages) in the casual wear market, while e-PTFE can meet more requirements in any harsh environment, especially in aerospace, military operations, high temperature and cold operations, outdoor sports and other advantages. It is known as the "century fabric", and the general waterproof and breathable fabric is only 2000-3000g/m/24hr. Look at the fleece again. At present, there are many kinds of fleece fabrics in China, and the price varies greatly. There are many kinds of sweaters. Large areas can be divided into windbreaks and fleece.

The PTFE fabric is made of compound membrane. It is a waterproof and breathable coating on the outer surface of the fabric to achieve waterproof and breathable effect. This fabric is characterized by excellent stability. Even at low temperatures, the performance is not easy to change, so it is often used in a variety of harsh environments. PU and TPU fabrics are mostly made of coating technology. They are coated with a waterproof and breathable layer under the outer fabric. This material will decrease its air permeability when it is low temperature, but its price is cheap and its durability and washability are better than that of PTFE. So we often see that some big brands will use GTX and other fabrics to make professional money, and use their own fabrics (actually buy PU, TPU fabrics) to do some cheap low altitude sportswear.

So when we choose to catch the down garments, we need to see what kind of clothing it is. Fleece catching Materials, windbreak, fleece, or ordinary fleece, to compare the thickness of this fleece and other fleece (Beek weight). The two is to see its brand, POLARTEC (also a lot of different products). At present, it is used to produce the best fleece fabrics in the world, and of course the price is also expensive. Three to see the overall production process of this garment, it can be seen from the e-PTFE microporous film electron microscope photograph that the surface of e-PTFE microporous membrane has spider meshed microporous structure. The morphology of micropores is conventional fiber structure. The e-PTFE microporous membrane belongs to the asymmetric membrane. For example, there are many other technologies that can be compared to other brands, so the overall price is very high.