The emergence of milk protein fiber has changed the traditional definition of animal protein fiber. It has the advantages of natural fiber and the characteristics of chemical fiber, with better quality. So some people ask, what is the advantage of milk fiber? In this issue, the author compares the following aspects:
First, in terms of green and environmentally friendly properties, milk fiber does not use formaldehyde and azo additives or raw materials, and the formaldehyde content in the fiber is zero. Soy protein fiber is produced through vinylon formaldehyde and contains a small amount of formaldehyde. Milk protein has broad-spectrum antibacterial function, strong durability, and is more mold-proof and moth-proof than wool and cashmere. It has a natural antibacterial function of more than 99% and an antibacterial rate of more than 80%. These are natural fibers such as cotton, silk, wool, and cashmere. What it doesn’t have.
Second, in terms of fiber comfort, milk fiber has a cashmere-like feel. Milk fiber monofilament has finer fineness, greater strength than bamboo fiber, pearl fiber, etc., and lighter specific gravity than wool, cotton, silk, etc., while its elongation at break, curl elasticity, and curl recovery rate are close to cashmere and wool. Corn fiber introduces lactic acid bacteria on the basis of polyester, while milk fiber introduces animal protein on the basis of acrylic fiber, making the fiber more fluffy and soft, so the touch is as soft, comfortable and smooth as cashmere; the fiber is white and silky Natural luster and elegant appearance. After testing, Zhengjia’s milk fiber’s anti-sun fastness and anti-sweat fastness reached level 3 to 4, and its anti-pilling and pilling resistance reached level 3.
Third, in terms of moisture absorption and moisture conductivity, the air permeability of milk protein fiber is far better than that of other chemical fibers, such as polypropylene, polyester, acrylic, and even silk, because the cross-section of milk fiber is irregular and round, and the cross-section is full of gaps. There are many grooves, and protein molecules are distributed on the surface of the fiber. It contains natural protein moisturizing factors and a large number of hydrophilic groups, which can quickly absorb human sweat and quickly introduce it into the air through the grooves to keep people’s skin dry.
Fourth, in terms of heat absorption and release, the three-dimensional porous microporous structure of milk fiber and the groove structure on the longitudinal surface determine its characteristics of being warm in winter and cool in summer. Because of the introduction of animal protein, the warmth of milk fiber is better than traditional acrylic fiber, close to the performance of natural fiber cotton, and slightly lower than wool. Combined with the excellent moisture absorption and breathability of milk fiber, it is made into a light fabric in summer, which quickly absorbs the moisture and sweat emitted by the skin, and quickly diffuses it into the air, keeping the skin dry and breathable; in winter, it is made into a thick fabric, with micropores that absorb the heat emitted by the body. , effectively blocks air circulation, prevents the intrusion of cold air, and is lightweight and warm.
Other characteristics of milk fiber include: dyeing at room temperature and pressure, the same as cotton fiber, using cotton-type reactive dyes, bright, soft and shiny colors, high dye uptake rate, color fastness up to level 4 (sample is Shanghai Zhengjia Milk (Produced by Silk Technology), the product still maintains its original performance after dyeing, and has excellent safety for consumption; the fiber has high dry and wet strength, and its wet fastness is greater than modal, Tencel, pearl fiber and other viscose fibers, and it is durable and durable. Washable, easy to store, easy to dry after washing, and the product can still maintain permanent performance after washing.
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