< p > it is learnt that most domestic enterprises use moisture absorbing and heating fibers as raw materials to develop knitted fabrics through different proportions and processes, changing the traditional "a href=" //m.pmae.cn/news/index_c.asp "warm fabric > /a > heavy and bloated form, so that the thermal fabric has the characteristics of light, thin, soft and warm. < /p >
< p > it is understood that there are mainly four ways to improve the moisture absorption and heating properties of fibers: 1., high hydrophilic treatment of fibers, introducing hydrophilic groups such as amino and carboxyl groups in molecular chains, and cross-linking treatment to obtain fibers with strong hygroscopicity. 2. increasing the surface area of fiber by increasing the cracks and micropores of the fibers, thereby increasing the surface energy and improving the hygroscopicity. 3. the combination of cellulose fiber and ultra fine denier synthetic fiber has high moisture absorption and capillary effect, and can absorb sweat quickly and spread. 4. add or put some substance on the surface of the fiber, which absorbs water and produces chemical reactions and releases heat. < /p >
< p > < strong > heating underwear is not < a href= > //m.pmae.cn/news/index_f.asp > warm underwear > /a > /strong > /p >
< p > Xing Zhigui said that the mechanism of moisture absorption and heating is different from that of thermal underwear. Moisture absorption and heating are the effects of moisture absorption and active heating. Underwear means that underwear can achieve warmth retention by controlling heat conduction, and they can not be replaced each other, but they can complement each other. < /p >
< p > Zhang Yi further explained that the underwear is not a thermal underwear, and the concepts and principles are different. Heating underwear usually takes moisture absorption and heating fibers as raw materials, and absorbs the moisture emitted by the human body to generate fever voluntarily, that is, the heat is generated by the underwear. Thermal underwear is heat insulation, through increasing thickness, reducing air permeability, reducing the loss of body heat, to achieve the effect of warmth, its fabric itself has no heating function, that is, heat is not generated by underwear. < /p >
No matter what kind of material, consumers can observe that underwear is mostly made of double-layer fabric, and its surface is relatively clean and bright. It uses cotton, wool, tin and modle, and the inner layer is short fiber, which is acrylic fiber fleece. The structure is designed to lock the air well and increase the volume of static air in the fiber assembly as much as possible because the thermal conductivity of the air is very low. Static air can reduce heat conduction and radiation, thereby reducing the heat loss of the human body and achieving the goal of P long term thermal insulation. The thicker and thicker the fabric is, the better the thermal performance is, but the bad thing is that the permeability of underwear is generally poor. < /p >
< p > heating underwear is not only "feverish". Moisture absorption and heating fibers are more accurately referred to as "air conditioning fibers". This kind of fiber can be adjusted according to the ambient temperature. When the environment is cold, it can absorb moisture and generate heat. Moisture absorption and heating underwear is also suitable for clothing in spring and autumn. It is not exclusive winter. Therefore, simply emphasizing "fever" is a gimmick that businessmen attract to consumers in order to seize the winter underwear market. < /p >
< p > < strong > choose a href= "http://m.pmae.cn/news/index_h.asp" > fever underwear < /a > three tips: /strong > /p >
< p > the hot underwear on the market attracts the eyeballs because of its unique function of light but warm, and its price is as high as 3~4 times of ordinary thermal underwear. However, because of its wide variety of publicity and authenticity, it is difficult to distinguish between true and false. In order to prevent shoddy businesses from being shoddy, consumers should be reminded to pay attention to the following points when purchasing hot underwear: < /p >
< p > look at the logo. See if the logo is marked with the material of the manufacturer, factory site and clothing, and check whether the label of the hot underwear is posted on the box. The logo indicates the name of the heating fiber, the heating effect and the addition ratio. < /p >
< p > see standard. At present, the moisture absorption and heating underwear already has the national industry standard "moisture absorption and heating knitted underwear", and the product quality should meet the requirements of this standard. Therefore, when buying, we should not only look at the commodity name, but also pay attention to the execution standard number on the tag, and the standard number of the moisture absorption underwear is FZ/ T73036-2010. < /p >
< p > choose brand. The best way to buy hot underwear is to go to regular shopping malls, supermarkets, buy large brands of underwear, and make invoices. Once disputes arise, they can also be guaranteed. < /p >
< p > < strong > the sensitivity of heated underwear varies from person to person < /strong > < /p >
< p > Wang Zhi said that for people with skin allergy, it is not possible to determine whether they are suitable for wearing hot underwear because they are different from each other. Because different heating underwear has different raw material composition, individual skin adaption ability is different, different people have different allergens, such as some people are allergic to chemical fiber and acrylic fiber. Therefore, consumers with skin allergy history should pay attention to whether the materials on their labels contain their own allergy materials when choosing hot underwear. < /p >