Judgement on the quality of outdoor sports clothing

Release time：2016-6-20 8:49:08        Click times：555

Although the category of outdoor sports is very wide, but professional outdoor sports clothing, such as the charge is mainly for mountaineering, skiing and other Alpine sports purposes. Outdoor sports in addition to the requirements of the body and skills of the participants, but also the need for outdoor clothing can adapt to harsh weather and complex geographical environment, in order to protect the sport's personal safety.
Outdoor sports clothing and home clothing, although there is no any essential difference, but because of the two outdoor and sports characteristics, requirements of clothing is also relatively strict and harsh: calorific value of outdoor sports, evaporation of sweat more, requirements of clothing heat dissipation and good air permeability field will inevitably encounter wind sleet fog, clothing should be waterproof performance of outdoor sports to try to reduce weight, suit to be as light as possible in the wild wind, the mountain cold, warm and windproof performance requirements of high washing outdoor conditions are limited, clothing antibacterial deodorant and stain resistant requirements of high.
Working in the field of rock climbing through the woods, clothing requires good tensile and tear resistant...... , the requirements of these properties from the perspective of textile technology is very harsh, and even a lot of indicators are conflicting. Any single natural or chemical fiber can not meet these requirements, can only be through a variety of fiber composite and multi way chemical finishing to achieve these functions as far as possible.
1, thermal insulation:
Although thermal insulation is closely related to the thickness of the fabric, but outdoor sports does not allow clothing is too heavy, so it is not only to keep warm and light to meet the special requirements of outdoor sports clothing. The most common method is in polyester and other synthetic fibers in the spinning solution containing chromium oxide, magnesium oxide, zirconia and other special ceramic powder, especially fine ceramic powder of nano scale. It can absorb the sun visible and will be transformed into heat energy, but also reflecting the body's own hair emit far infrared, so it has excellent thermal insulation and thermal properties. Of course, can also be the far infrared ceramic powder, a binder, and a crosslinking agent to prepare finishing agent, of woven fabric coating, drying and baking treatment, nano ceramic powder attached to the surface of the fabric and yarn. This finishing agent emission wavelength of 8-14 m of the far infrared, but also has antibacterial, deodorant, promote blood circulation and health function.
In addition, according to the principle of bionics and reference in polar bear hair structure of the polyester fiber make porous hollow, the fiber contains a large number of non circulation of air, external made spiral curl to keep fluffy, under the premise of guarantee the texture light to good thermal insulation effect. Of course, the clothes and even fabrics are made into a double layer and three layer, so that the increase in the air layer does not flow, but also one of the most traditional way to keep warm.
2, waterproof and moisture permeability:
Exercise will emit large amounts of sweat and outdoor and inevitably encounter rain, which in itself is a contradiction: it is necessary to can prevent rain soaked, but also can in a timely manner to the body exudes sweat discharged out. Fortunately, the body exudes a single molecule of water vapor, and rain and snow is aggregation state of liquid water droplets and their size differ very far. In addition, the liquid water has a known as the characteristics of the surface tension is to gather their size characteristics, we see on the lotus leaf water is showed granular beads and not flat open water stains. This is because the lotus leaf surface layer attached to the organization of waxy hairs drops due to the role of surface tension cannot in this layer of wax hairs diffusion and osmosis. If you put a drop of detergent or washing powder dissolved in water droplets, the detergent can reduce the surface tension of the liquid, water droplets will immediately disintegrated spread flat on the lotus leaves. Waterproof and moisture permeable clothing is the use of the surface tension properties of water, in the fabric material coated with a layer of PTFE (and resistance to corrosion fiber king "PTFE same chemical composition and physical structure is different) reinforcing textile chemical coating of surface tension, so that water droplets as far as possible to tighten and cannot be parted, infiltration fabric surface, and not through the pores of the fabric. At the same time, the coating is porous, and the water vapor in the single molecule state can be distributed to the fabric surface smoothly through the capillary channel between the fibers.
After large amount of exercise if you stop to have a rest in the field, there is possible because the outside temperature is low, sweat can not be timely dissipation and the clothes inside water droplets are formed, so that people have a very uncomfortable feeling, this is the so-called "dew" phenomenon. Known as the "low condensation" special moisture permeability finishing process, which uses poly urethane (PU) and the hydrophilic nano ceramic powder on fabric coating finishing, in the body a lot of sweat evaporation can absorb too much sweat vapor, thus avoiding the clothes the internal water vapor over saturated vapor pressure and transformed into the phenomenon of water droplets.

Apart from the fiber and coating to outside, in the fabric structure can also try wicking. Such as the use of a double-layer structure, the inner layer of the personal with hydrophobic fiber and outer hydrophilic fibers, so that sweat can rely on capillary action, the transfer from the skin to the inner fibers, again due to the outer hydrophilic fibers and water molecules binding ability to the hydrophobic fiber layer, water molecules again from the fabric inner layer transfer to the outer. Finally, sporadic into the atmosphere.

3, antibacterial deodorant:
Due to the motion characteristics caused by sweat and sebaceous gland secretion. Outdoor conditions and can not often change clothes, in the appropriate temperature and humidity environment, microorganisms are also a large number of reproduction, resulting in the body exudes a sense of smell and cause itching. Therefore, regular outdoor sports clothing are antibacterial deodorant chemical finishing. Finishing way is generally will have a bactericidal effect of organic quaternary amine, imidazoline type surface active agent or silver, copper and other heavy metal ions by resin and cross linking agent fixed on the fiber, it has a good fastness to washing. Of course, choose one of the important principles of fungicides must be non-toxic or low toxic, or is the trifles. In recent years Japan in natural antibacterial finishing agent research done a lot of exploration, such as the use of aloe, Artemisia argyi, eucalyptus, roses, has a bactericidal effect of aromatic oil extract. The coating is in porous organic micro capsule or porous ceramic powder attached to the fabric, and crosslinked resin fixed, through friction, the backlog and other mechanical action slow release of fungicides to achieve durable antibacterial finishing. This kind of natural antibacterial agent is not only non-toxic and harmless, but also has certain health care function, it should be the development direction of antibacterial finishing. However, due to the fixed antimicrobial agents are currently very limited, so the antimicrobial agent is not good enough to wash, washing once a few times the performance of the antibacterial will drop some, usually after a few times completely disappeared.
The United States Dow Corning aegis mouldproof antibacterial agent by molecular bond will eighteen long carbon chain uniform distribution in fabric surface, and fabric combination as a whole, after relying on physical effect of sterilization, and different from other by chemical sterilization, to achieve a permanent anti-bacterial effect.
4, pollution and ease of decontamination:
Outdoor sports often walk to shuttle back and forth in the wet and muddy mountain forest, wiping the dirty clothes is inevitable, which requires the clothing appearance to try not to easily stain stains, and once after the contamination but also easy to be washed to remove. Change fiber surface properties, greatly improve the fabric surface tension, so that oil and other stains difficult to penetrate to the interior fabric to and removed with slight stains with a damp cloth to wipe can be. Heavier stains are easy to clean. And stainproofing can not only prevent the oil pollution, it also has the performance of waterproof and moisture permeable, generally known as "finishing" (oil and water repellent, anti soil, which belongs to a practical and effective advanced chemical finishing methods, commonly used in the finishing of the fabric of the outer garments and bags, shoes, tents.

5, anti-static and anti radiation finishing
Mountain climbing is the core content of outdoor sports, in addition to the virgin forest, at an altitude of 3000 meters above the mountain and plateau areas due to low air pressure, water is easy to volatilize, environment is generally dry, and outdoor clothing are basically chemical fiber fabric, so electrostatic problem is more prominent. The electrostatic damage is generally expressed as the clothes easy pilling, easy contamination of dirt, close to the skin have electric shocks and sticky feeling and so on. If carry such as electronic compass, altimeter, GPS navigation systems, such as precision electronic instruments, it is possible to clothing electrostatic interference and generate errors, bring the serious consequence.
Friction between any object may produce static electricity, but only dry insulating objects will cause the accumulation of static electricity. Therefore the best antistatic fabric, of course, is a natural fiber fabric, but as mentioned earlier, pure natural fiber incompetent the special requirements of outdoor sports and even is a natural fiber, in very dry conditions will electrostatic phenomena because of the lack of water molecules. Fabric antistatic finishing ways mainly have two points: one is simply in the fabric woven into wire, made of conductive fabric (also electromagnetic wave shielding fabric and anti electromagnetic radiation fabric), the static electricity generated by the friction of the timely conduction dissipation to the outside world. But this kind of fabric is not suitable for sports wear, it is not good enough, not comfortable enough. Another method is the use of block polyether and polyacrylate etc with moisture absorption effect of antistatic agent, to fabric surface coated with a layer can be adsorbed water molecules of chemical film, make the fabric surface to form a continuous layer of conductive water film, the electrostatic conduction dissipation.
High altitude area due to the relatively thin atmosphere, the UV blocking filtering effect is greatly reduced, the intensity of ultraviolet radiation is much higher than the low altitude area. Ultraviolet rays can effectively promote the formation of vitamins, has a bactericidal effect, but too strong radiation will give the person's skin damage. The penetration of ultraviolet light is very strong, the general fiber fabric and can not completely shield its exposure. The nanoscale inorganic titanium dioxide (TiO2), nanometer zinc oxide (ZnO) such as UV shielding agent and organic salicylic acid system, cyanoacrylate, second benzophenone, benzo triazole ultraviolet absorbent, the resin crosslinking method of fixation on the fabric, it can play a certain role in radiation protection.
So to speak, outdoor sports apparel represents today's textile science development in the forefront of the latest technology, this is a seemingly insignificant mountaineering clothes, trousers of hundreds of thousands, or even thousands of yuan a important reason (of course, does not rule out brand value and function of styles and other factors). Although the price does not low, but a set of wind, ventilation, moisture resistance, heat insulation, anti radiation and other properties as one of professional outdoor sports clothing, for a climber may sometimes has the meaning of life with the same! However, due to the outdoor sports of diversity, complexity and unpredictability, the function of clothing due to the different environment and the movement of May there will be many different requirements. Therefore, current science and technology, the overall performance of the outdoor sports apparel or difficult to do exhaustive perfect.

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