Tempering fiber mainly refers to the fiber using phase change temperature regulating function material. It is a high technology product developed by combining phase change energy storage material technology with fiber manufacturing technology.

When the temperature of the environment increases, the phase change material absorbs heat from solid to liquid and reduces the surface temperature.

On the contrary, when the ambient temperature decreases, the phase change material releases heat, which changes from liquid to solid state, reducing the heat released by the human body to the surrounding area, so as to maintain the normal body temperature of the human body, and provide a comfortable "micro climate inside the clothing" environment for the human body, so that the human body is always in a comfortable state.

This kind of fiber material can control the ambient temperature actively and intelligently, so it is called intelligent temperature regulating fiber.

Its main manufacturing processes include coating finishing process, composite spinning process and microcapsule spinning process.

Among them, the fiber produced by microcapsule spinning is the best in appearance and feel, and attracts the most attention because it is the same as ordinary fiber.

Application field of tempering fiber

The clothing made of intelligent temperature tempering fiber, because of the existence of phase change material with energy conversion function, uninterruptedly absorbs and releases energy to adjust the temperature, so its clothing can be kept in a comfortable temperature range, so a variety of comfortable clothing can be made with intelligent temperature tempering fiber.

The intelligent temperature regulating fiber can be pure spinning, and can be blended with cotton, wool, silk, hemp and other kinds of fibers, and can be knitted or knitted.

It is widely used in outdoor clothing, underwear, sweater, shirt, hat, gloves, bedding and so on. It has good effect.

Their costumes are very popular in the USA, Europe and Japan.

Especially in outdoor sports and temperature sensitive elderly, infants and young children are more popular.

At present, most of the countries that use phase change materials as the main temperature regulating fibers are mainly in the United States and Switzerland. The temperature regulating fibers produced by them are mainly microcapsule spinning technology, while Japan's chemical industry is developing the technology of microcapsule slurry coating.

Market development of temperature regulating fibers

The temperature regulating fiber in China is still in the stage of research and development and trial production, and the product market is not yet mature.

Mainly include: Beijing Saussurea cashmere Limited by Share Ltd and Shanxi Heng Tian New Fiber Technology Development Co., Ltd. jointly developed in March 2007 the intelligent milk protein temperature regulating fiber, its pressure resistance, high temperature resistance performance is excellent.

Because of its nutritious material containing natural milk protein, its skin affinity is excellent. It has created sufficient conditions for downstream customers to develop and develop high-grade new functional fabrics.

With this fiber blended with wool, camel hair and cotton in 40% ratio, the fabric with good handle and temperature adjustment is obtained.

In addition, the Beijing Saussurea cashmere Limited by Share Ltd has also launched the silk silk fabric with intelligent heat regulation and temperature regulation.

In October 2003, Baoding Xiong Ya Textile Group, under the guidance of the "technician" technician, produced the space phase change temperature control fiber yarn.

It is a high-tech phase change temperature regulating fiber developed by the US space agency for space suits, and is made from imported high-level Locke.

This temperature regulating fiber has been tested and approved by the Japan Textile Inspection Association, the China cotton spinning product quality supervision and inspection center and the Shanghai entry exit inspection and Quarantine Bureau.

The product also has long effect sterilization and disinfection effect.

The automatic temperature regulating fiber developed by Tianjin University of Technology is a kind of intelligent fiber which has the function of absorbing, storing and releasing heat energy by adding 20wt% phase change material in polymer fiber.

The fabric made of this fiber has the function of temperature adjustment, which can significantly improve the comfort of taking.

The project conquered the problems of heat resistance improvement and scale synthesis of phase change materials. The automatic temperature adjusting fiber made by the project has remarkable temperature regulation function, and its comprehensive heat preservation performance is better than that of wool floc.

The wool like lint is developed with the intelligent temperature regulating fiber as the main raw material and combined with three dimensional four hole crimp polyester fiber and a small amount of fine denier fiber. Its comprehensive heat preservation performance is better than wool floc. Compared with wool floc, its heating temperature difference and cooling temperature difference are all above 3.7 degrees Celsius.

Jinhua Xin Jia Textile Co., Ltd. developed an automatic temperature regulating core in September 2007. The product is called "Tian Fu cotton" and has applied for national invention patent.

It mainly changes the spatial structure of cotton fibers by physical means, and improves the properties of elasticity, strength and shrinkage.

At room temperature, "Tian Fu cotton" is in a dormant state. After the body temperature is passed, the volume of the cotton fabric begins to expand, the volume of the fiber increases, the permeability increases, and the excess moisture and heat are discharged to achieve the effect of temperature regulation.

Our institute and Hebei JJG Chemical Fiber Co., Ltd. jointly developed the "intelligent temperature regulating viscose fiber" and passed the appraisal of scientific and technological achievements organized by the National Textile Industry Association.

The technology was first developed in China and reached the advanced level in China.

At the same time, the quality test report shows that all physical performance indicators reach the first grade standard of viscose fiber.

Recently, it was recommended by the China Textile Industry Association to popularize technology for the "11th Five-Year" textile industry.

Some products such as quilts, towels, T-Shirts, thermostat and non-woven fabrics have been developed.

Tempering fiber has become a research hotspot in textile functional products both at home and abroad. In Europe and America, there has already been a mature market for tempering textile products and has been trusted and accepted by consumers.

In China, the research and application of temperature regulating fibers is still in its infancy, and there are no mature products in the market.

However, we believe that because the temperature regulating fiber has the function of heat storage and temperature regulation, and has excellent blending ability with other kinds of fibers, and the application scope is very broad, it will surely have broad market development space.

In addition, the temperature regulating fiber needs to be further solved to reduce the cost and improve the temperature regulation two problems, so as to be more conducive to market acceptance.