There is "money" view: warm heat fiber

Polyester, polyester, viscose and other fiber blended warm yarn is becoming a popular new material at home and abroad.

Traditional upgrade function is stable

The space for research and development of thermal insulation materials is also very large, not only to achieve breakthroughs in new areas, but also to upgrade in the original field. For example, an alternative to down is achieved. Last year, Yizheng Rong produced from Jiangsu Yizheng Chemical Fiber was officially put on the market. Yizheng Rong products are proposed by downstream users. The synthetic fiber division of Huadong Branch of Chemicals Sales Co., Ltd. takes the lead, Yizheng Chemical Fiber Co., Ltd. and Changshu Jinyu jointly develop new pearl cotton products, which are mainly used for the filling of high-end apparel and toys. The pearl beads which are processed by special production techniques are full of particles, soft and smooth, and the quality is far better than ordinary pearl cotton products. After filling down, the product has good dispersibility, and the rebound warming effect is more superior. To a certain extent, it has reached the feel of natural feather and its substitution effect. The added value of the product is higher, and the price per ton is higher than the several thousand yuan of Yizheng Chemical Fiber's similar hollow products.

Infrared heat storage fiber is also a good material for making warm textiles. Infrared heat storage fiber is mainly used to absorb sunlight, light and the human body's own lifeline to store heat, so as to achieve the purpose of keeping warm, so the infrared heat storage is long-lasting, not hot and cold Feeling, this is very suitable for making warm clothing.

Corresponding to this is hygroscopic heat-generating fiber. The main principle of this type of fiber is to absorb water vapor in the gaseous state and make it into a liquid state, thereby converting its kinetic energy into heat energy and causing the fabric to generate heat, but when the fabric absorbs moisture, it is in liquid state. When water becomes vaporized, it absorbs heat and cools the fabric. Therefore, the hygroscopic heat itself is not a prolonged heat-generating process. In the specific spinning and weaving process, attention should be paid to the damage of the phase change material (microcapsule) of the hygroscopic heat-generating fiber, and the temperature, time, and number of times of dyeing and finishing should be reduced as much as possible, otherwise the phase change material may be damaged. . In addition, hygroscopic heating fabrics are not easy to store for a long time, and the phase change times of moisture absorption and evaporation are also reduced during use, so as to reduce the damage of phase change materials.

New warm self-heating

In fact, the earliest warmth and heat-generating functional fibers were added with far-infrared ray ceramic particles in the yarn, and the ceramic particles were attached to the yarn after post-processing to achieve the thermal effect. Unitika Fibers has recently upgraded this technology, and the newly introduced Thermotron, a heat-storage moisture-retentive fiber material, can absorb sunlight and convert the absorbed light energy into heat energy, while also having the function of reflecting far infrared rays emitted by the human body. Through the "absorption-heat conversion" and "thermal reflection mechanism", the human body obtains the desired comfort and warmth temperature. The core of each single fiber is dissolved with tiny particles of zirconium carbide, which emits heat under the influence of solar thermal energy and reflects far-infrared rays with longer wavelengths to warm the interior of the garment. When this fiber material was first introduced, it was mainly used as a ski suit, and it is currently attracting attention as an inner material for knitting products.

It is worth mentioning that some companies will also make powders from seabed or volcanic eruption of natural ore, and then add fabric fibers, which can produce far-infrared, play a role in keeping warm. For example, Triumph's fluffy thermal underwear is the natural mineral ingredients added to the fiber, this product is characterized by a soft wearing body feeling and the use of absorption of far infrared heat to obtain good warmth. In addition, the underwear uses delicate micro-propylene and fluffing materials to obtain a soft and smooth wearing feel. This underwear is made of fluffy material that looks warm from the outside.

Jilin Chemical Fiber Group can be said to keep improving in the research and development of warm-keeping materials. In the cooperation with the downstream, they creatively combined their various thermal products such as heat-accumulating acrylic fiber, fine denier acrylic fiber + modal, heat accumulating acrylic fiber + cotton + bamboo , Siever + Tencel and other species, to achieve a leap in the effect of warmth.

Siever is a phase change energy storage viscose fiber developed by Jilin Chemical Fiber, and Shandong Yinying Chemical Fiber also broke through this technology. The representatives of Yinying Chemical Fiber Company believe that phase change energy storage viscose fiber will shift from the traditional passive defense warm-up mode to active thermal heating mode, and the most important thing is not to consume other energy sources.

In general, there are two main ways to achieve thermal performance: one is to keep the heat as much as possible, and one is to use some method to obtain heat. The warmth of textile and clothing is affected by the following factors: fiber materials and yarns; yarn structure, fabric structure, weaving structure; post-processing processing, etc. When the thermal effect is obtained by the fiber material and the yarn, the material is related to the air content, skin feel, moisture absorption, heat absorption, heat absorption, and far-infrared radiation. The more air contained in the fiber material and yarn, the better the insulation effect. The thickness of fabrics processed by wool and cotton fiber materials is related to warmth, and the thicker the warmth is. The traditional insulation is based on preventing the body from dissipating heat, while the heating fiber is a brand-new material that self-heats and warms the body, and its water absorption is far more than other fiber varieties.

Global epidemic health environmental protection

In recent years, the international market is also keen on the development of new products of heat-generating fibers in Japan, China Taiwan and other countries and regions. The important reason is that these products have far more physical effects and water absorption than other fibers. If the clothes worn in the winter are insulated from the outside air by only focusing on the insulation performance, the body will be very uncomfortable once people exercise and sweat. If the wearer wears good water absorption, consumers will feel more comfortable even if they exercise and sweat. This is also the reason why many consumers like cotton products. It is also the reason why many chemical fiber companies are striving to research and develop imitation cotton products.

From the beginning of the emergence of heating fibers, most of the heating fibers such as EKS fibers and new Soft warm fibers were developed in Japan. The new Soft warm fibers processed by Japanese companies are combined with special artificial wood pulp fibers and Toray's ultra-fine fibers. The advantages of anti-pilling acrylic are the advantages of heat, humidity, warmth, and soft touch. The human body breathes at all times and emits mild moisture at any time. The new Soft warm fiber absorbs the moisture and converts it into heat through chemical reactions to achieve fever. In the new Soft warm fiber, the ultra-fine denier anti-pilling acrylic and flat adhesive cross-sections inherently have a double gap between them, preventing heat loss and achieving excellent thermal retention. At the same time, thanks to the capillary phenomenon, the new Soft warm fiber removes excess moisture from the body and leaves the body in a dry state, ensuring optimum wearing comfort. The new Soft warm fiber yarn can now reach 64 public branches. It is suitable for the production of thermal underwear, scarves, and sweaters in warp knitting.

In addition, the popular coffee fiber in recent years has also been continuously optimistic about the market. Coffee grounds are super-high-temperature carbonized and transformed into coffee carbon fiber. The underwear made can heat up and keep warm, and it is also more environmentally friendly. This kind of coffee carbon fabric is most suitable for making hot underwear, so the natural environmental protection of underwear is not easy to be deformed.