Functional finishing of outdoor sports clothing fabric

Functional finishing of outdoor sports clothing fabric
Although the types of outdoor sports are very wide, professional outdoor sports clothing, such as rush clothes, are mainly aimed at high and cold sports such as mountaineering and skiing. Outdoor sports not only require the participants' physical skills and skills, but also need outdoor clothing to adapt to bad weather and complex geographical environment, so as to ensure the safety of the sportswear. Outdoor sports clothing and home clothing although there is no essential difference between what, but because of the two characteristics of outdoor and sports, clothing requirements are relatively strict and harsh outdoor heat and sweat evaporation, cooling and ventilation requirements of clothing performance is good; the snow free field to meet the fog, clothing should have certain waterproof performance the outdoor sports; hope to reduce weight, clothing to light; the wild wind, the mountain cold, warm high performance requirements; outdoor washing conditions, antibacterial and anti staining clothing requirements; working in the field of rock climbing through the woods, clothing requires good tensile and tear resistant...... The requirements of these properties are very harsh from the point of view of the textile technology, and even a lot of indicators are conflicting. Any single natural or chemical fiber can not meet these requirements. We must try to achieve these functions through multiple fiber combinations and multi-channel chemical finishing.
1. Heat preservation:
Although warmth is closely related to fabric thickness, outdoor sports do not allow clothing to be too heavy. Therefore, it is necessary to keep warm and light to meet the special requirements of outdoor sportswear. The most common method is containing chromium oxide, zirconium oxide, Magnesium Oxide and other special ceramic powder in polyester and other synthetic fiber spinning solution, especially micro nano ceramic powder, it can absorb the sun light visible light and converted into heat energy, far infrared ray can also emit reflection of human body, so it has excellent heat preservation and heat storage performance. Of course, we can also make far-infrared ceramic powders, adhesives and crosslinking agents into finishing agents, and coat the processed fabrics, then dry and bake them, so that nanoscale ceramic powders can be attached to the fabric surface and yarns. The wavelength of this kind of finishing agent is far infrared of 8~14 mu m, and it also has the health function of bacteriostasis, odor prevention and promoting blood circulation.
In addition, according to the principle of bionics, the polar bear hair structure made of polyester fiber internal porous hollow shape, the fiber contains a large number of external circulation air, made of spiral curl to keep fluffy, can guarantee the light texture has good insulation effect. Of course, the clothes and even the fabric are made into double layers or three layers, so that the non circulation air layer is increasing. It is also one of the most traditional heating measures.
2. Waterproofing and moisture permeability:
Sports will emit a lot of sweat, and outdoor is also hard to avoid rain and wind, which is a contradiction in itself: it must be able to prevent rain and snow soaking, and also timely release sweat from the body. Fortunately, the human body emanates a single molecule state of water vapor, while the rain and snow are the liquid droplets of the aggregation state, and their size is very different. In addition, liquid water has a known as surface tension characteristics, also is to gather characteristics of their size, we see in the water on the lotus leaf is granular water rather than the spread of water, this is because the lotus leaf surface with a layer of wax with hairs, drops due to the action of surface tension not in this layer of wax hairs on diffusion and osmosis. If you drop a drop of detergent or laundry powder into the water, because the detergent can greatly reduce the surface tension of the liquid, the water will immediately disintegrate and spread on the lotus leaf. Waterproof breathable clothing is the use of surface tension of water, coated with a layer of PTFE on the fabric (chemical composition and corrosion resistance of PTFE fiber king PTFE same and different physical structure) enhanced chemical coating fabric surface tension, so that water can not spread out as far as possible to tighten, infiltration of fabric surface thus, not through the fabric on the pore. At the same time, the coating is porous, and the water vapor of single molecule state can be easily transmitted to the surface of the fabric through the capillary channel between the fibers.
After a large amount of exercise, if you stop in the field to rest, it is possible because the outside temperature is low, unable to escape and sweat in the clothes inside the formation of water droplets, make people have a very uncomfortable feeling, this is the so-called "dew" phenomenon. Is known as a "special low permeability condensation finishing process, it adopts polyurethane (PU) and nano ceramic powder hydrophilic fabric coating, the body sweat evaporation can absorb excessive perspiration vapor, thus avoiding the clothes over the internal water vapor saturated vapor pressure into water droplets phenomenon.
In addition to the method of fiber and coating, the fabric structure can also be as moisture absorption and perspiration as possible. For example, using the double structure, close inner layer with hydrophobic fibers, and the outer layer of hydrophilic fibers, so that sweat can rely on capillary action, from the skin to the inner fibers, again due to the combination of outer hydrophilic fibers and water molecules in strong inner hydrophobic fibers, water molecules again from the inner fabric the transfer to the outer layer, finally emitted to the atmosphere.
3. Antiseptic and odorability:
A lot of sweat and sebaceous glands are secreted because of the characteristics of the movement. And outdoor conditions can't change clothes frequently. Under suitable temperature and humidity environment, microbes will also propagate in large quantities, resulting in an exorting smell on human body.