What is a cool-feeling fabric? Are cool-feeling fabrics an IQ tax? In order to avoid various gimmicks of businesses from deceiving consumers, various hype behaviors, and standardize market behavior, in 2017, the China Textile and Apparel Industry Federation formulated the national standard for cool-feeling fabrics - GB/T 35263-2017. According to the standard, textiles with contact cooling coefficient qmax ≥ 0.15 are cooling fabrics (note: the unit of qmax is joules per square centimeter second [J/(cm².s)]).

With the progress of society, people have higher and higher requirements for the comfort and functionality of clothing. The demand for cool-feeling fabrics is increasing year by year, and the market prospects are broad. The market demand has stimulated the research interest of scientific and technological R&D personnel in personal thermal management and cooling fabrics.

According to research, the heat dissipation of the human body is mainly carried out in the form of sweat evaporation and heat conduction inside and outside the fabric. Generally, the thermal conductivity of fabrics is low. The traditional heat dissipation solution design mainly uses liquid cooling, air cooling technology and phase change materials. However, this kind of technology and Clothes produced from these materials have problems such as heavy weight, short working hours, and certain requirements for the working environment. The design of some clothes also has safety issues. If the thermal conductivity of the fabric can be increased and its heat dissipation performance can be improved through formula formulation, the heat generated by the human body can be transferred from the body to the environment, which will not only meet people's cooling needs, but also reduce people's dependence on electrical equipment for refrigeration, effectively Save energy and achieve low-carbon life. Therefore, fabrics with moisture absorption, moisture wicking, cooling functions and good heat dissipation properties are more in line with practical needs. Research and preparation of cooling fabrics with excellent cooling and heat dissipation properties are of great significance for energy saving and diversified human body temperature regulation.

Why does the introduction of hexagonal boron nitride into cooling fabrics attract so much attention?

First of all, hexagonal boron nitride (h-BN) has the characteristics of looseness, lightness, and smoothness. Adding it to the silk fabric formula can improve comfort without increasing the overall weight; secondly, h-BN has extremely stable chemical properties and is safe. It is non-toxic and can be safely used on silk fabrics to contact the skin (it is one of the formula raw materials of high-end cosmetics, which shows its safety); in addition, h-BN has a pure white and flawless appearance and is color-adjustable, which will not affect subsequent products. Colorful design; the most important thing is that h-BN has excellent thermal conductivity. After being introduced, it can effectively improve the thermal conductivity and cooling coefficient of silk fabrics, greatly improving the comfortable experience of the product, allowing related products to be prepared in the hot summer. favored.
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