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What are the functions of outdoor sportswear fabrics

Update:11-09-2020
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Although FR Combined Fabric there are many types of out […]

Although FR Combined Fabric there are many types of outdoor sports, professional outdoor sports clothing such as assault suits are mainly for alpine sports such as mountaineering and skiing. In addition to the physical abilities and skills of the participants, outdoor sports also require outdoor clothing that can adapt to harsh weather and complex geographic environments to ensure the personal safety of the athletes. Although there is no essential difference between outdoor sportswear and home clothing, due to the two characteristics of outdoor and sports, the requirements for clothing are relatively strict and demanding: outdoor sports generate high heat and evaporate sweat, which requires good heat dissipation and ventilation performance. It is inevitable to encounter wind, rain, snow and fog in the wild, clothing must have a certain degree of waterproof performance, so it has excellent heat preservation and heat storage performance. Of course, the far-infrared ceramic powder, binder and crosslinking agent can be formulated into finishing agents, and the woven fabric can be coated, and then dried and baked to make the nano ceramic powder adhere to the surface of the fabric and the yarn between.

 

WR and blackout taffeta fabric for umbrella

 

This finishing agent emits far-infrared rays with a wavelength of 8 to 14 μm, and also has health-care functions such as antibacterial, deodorant, and blood circulation promotion. In addition, according to the principle of bionics, referring to the structure of polar bear hair, the polyester fiber is made into a porous hollow shape, so that the fiber contains a large amount of uncirculated air, and the outside is made into a spiral crimp shape to maintain the fluffy, which can ensure the lightness of the texture. Play a good thermal insulation effect. Of course, making clothes and even fabrics into double or even three layers to increase the air-impermeable layer is also one of the most traditional thermal insulation measures. Sports will emit a lot of sweat, and it is inevitable to encounter wind and rain outdoors. This is a contradiction in itself: it is necessary to prevent rain and snow from getting wet, but also to discharge the sweat from the body in time. Fortunately, the human body emits water vapor in a single-molecule state, while rain and snow are liquid droplets in an aggregated state, and their sizes are very different.

 

In addition, liquid water has a characteristic called surface tension, which is the characteristic of gathering its own volume. The water we see on the lotus leaf is a granular water drop instead of a flat water stain. This is Because there is a layer of waxy hairy tissue on the surface of the lotus leaf, water droplets cannot diffuse and penetrate this layer of waxy hair due to surface tension. If you dissolve a drop of detergent or washing powder into the water droplets, since the detergent can greatly reduce the surface tension of the liquid, the water droplets will immediately disintegrate and spread on the lotus leaf. Water-proof and moisture-permeable clothing uses the surface tension characteristics of water to coat the fabric with a layer of  the same chemical composition as the but the physical structure is different) to enhance the fabric surface tension.

 

The chemical coating makes the water droplets as tight as possible without spreading and infiltrating the surface of the fabric, and thus cannot penetrate the pores in the fabric. At the same time, the coating is porous, and the water vapor in the monomolecular state can be smoothly transmitted to the surface of the fabric through the capillary channels between the fibers. After a large amount of exercise, if you stop to rest in the wild, it is possible that water droplets will form on the inner layer of the clothes because the outside temperature is low and the sweat cannot escape in time, making people feel very uncomfortable. This is the so-called " Condensation" phenomenon. There is a special moisture permeability finishing process called "low condensation", which uses polyurethane  and hydrophilic nano ceramic powder to coat the fabric, which can be absorbed when the body evaporates a lot of sweat More sweat vapor, so as to avoid the phenomenon that the water vapor inside the clothes exceeds the saturated vapor pressure and turns into water droplets.

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