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ePaper created 2015-02-09, 10:01:54 | version 1.34.01
P|14 Progress The requirements to be met by thermal clothing change according to the respective field of use. Even if the heat exposure is extreme, for instance exposure to sparks, open flame or hot gases and liquids, the temperature of the skin inside the clothing may not rise above 44°C. This requires a low heat conductivity of the clothing, and the use of materials which do not undergo defor- mation even at high temperatures, and which also are self-extinguishing and liquid-repellent. For a textile compound to safely withstand hot environ- ments where temperatures may short-term rise up to 1000 °C, adhesives are needed that have a high heat resistance. They should also be compounded with fire- protective additives, so that in case the garment cat- ches fire, the adhesive will not continue to burn. Impact protection In sports activities like skateboarding and motorcy- cling, a body that experiences a fall is exposed to huge forces. In the case of skateboarding, protective gear and helmet may be enough, but for the motorcyclist, the garments must be much stronger. Usually, the en- tire energy of an accident impacts the body of the bi- ker. Studies prove that the most frequent injuries are head injuries and serious injuries of the lower limbs. These are caused by collisions and the sliding of the biker over the asphalt. When plastic elements that have a protector effect are integrated into a garment, this requires a high mechanical strength of the bonded materials. To prevent heavy friction chafing on the skin caused by the body slipping over the road, a multilayer textile compound provides the necessary abrasive pro- tection. This is where high-strength wovens are used, for instance of aramide fibres. Another aspect is the protection of the biker against chill and extreme heat, apart from the mechanical ex- posures. The selection of the most suitable material combination and also of the laminating adhesive are equally important. Protection in critical situations The components of modern military clothing protect the wearer in critical situations. This not only refers to ca- mouflage but also to the comfort of wear. Bonded com- pounds are also of major importance when bulletproof vests are manufactured. These come in a variety of impact resistance classes, and all of them use flexible adhesive-laminated compounds. Protection against contamination by chemicals in mili- tary as well as in non-military environments, is provided by hazmat suits (hazardous material protection suits). Against chemical contamination, a activated carbon filter medium is most often used.Various chemical sub- stances can be absorbed by this filter and prevented from coming into contact with the wearer‘s skin. This requires safe bonding of the activated charcoal inside Fire-resistant suits Modern combat clothes provide protection in dangerous situations Industry Automotive | Textile | Electrical