The second category: fiber thermal underwear. Cotton, wool, acrylic, polyester and other fabrics are mostly used, and flocs such as cotton, wool and camel hair are used as fillers in the interlayer. It has good air permeability and moisture conductivity; The disadvantage is that it looks bloated and heavy.
The third category: space cotton thermal underwear. Its fabric is made of cotton, wool and chemical fiber. The inner floc is plated with a metal film. Its advantages are relatively warm and radiation-proof; The disadvantage is that the air permeability and moisture conductivity are poor, and it has a silky sound when worn.
The fourth category: thermal underwear with ICCP interlayer. It uses cotton, wool, silk, lycra and other fabrics, and the ICCP material in the interlayer has also developed from the initial non-porous to porous to reticulated membrane. The fixation between fabric and interlayer is also from gluing to special process compounding.
Category V: Comfortable and healthy thermal underwear. This kind of product claims to contain far infrared fiber and more than 20 kinds of trace elements. Far infrared ray can transform energy in the body and mediate the immunity of the body.
Category VI: Silk thermal underwear. Traditional silk thermal underwear (commonly known as silk cotton-padded jacket) is filled with silk, which is green and healthy, light and soft, smooth and warm.
Thermal underwear is different from ordinary cotton underwear. If it is washed improperly, it will not only damage the fibers inside, but also greatly shorten its wearing life.
Thermal underwear can't be dry-cleaned. The ideal method is gentle machine washing or hand washing.
The water temperature should not exceed 40℃, and it is better to control it at around 30℃.
Neutral detergent must be selected, and washing soap or detergent containing whitening agent is not allowed. Detergent should be appropriate, too much detergent will bring burden to the fabric, thus affecting the texture of underwear.
Everyone's clothes should be washed separately, at least children's and adults' clothes, healthy and sick clothes, underwear and coats, and different types of clothes should be washed separately, so as to ensure that laundry detergent can play its respective role.
Baidu encyclopedia-thermal underwear