The formation of milk protein fiber
Milk protein fiber is based on milk as the basic raw material. It is dehydrated, deoiled, skimmed, separated and purified to become a cheese with a linear macromolecular structure. Protein; then blended, cross-linked, and grafted with polyacrylonitrile using high-tech means to prepare a spinning solution; finally, wet spinning is used to form fibers, solidification, drafting, drying, crimping, shaping, and short fiber cutting. (Filament winding). It is a new type of animal protein fiber that is different from natural fibers, regenerated fibers and synthetic fibers. People also call it milk silk or milk fiber.
Identification of milk protein fibers
1. Microscopy
Vertical form
Horizontal form
2. Combustion method
3. Dissolution method
Characteristics of milk protein fiber
Green and environmentally friendly properties
Does not use formaldehyde, azo and other additives or raw materials, and the formaldehyde content of the fiber is zero; it is rich in 18 kinds of amino acids that are beneficial to the body of human milk fiber products and can promote the growth of the human body. Cell metabolism, prevents skin aging and itching, and nourishes the skin; it has natural moisturizing factors, so it can maintain the skin’s moisture content, make the skin soft and smooth, and reduce wrinkles. It has broad-spectrum antibacterial functions, strong durability, and an antibacterial rate of more than 80%. .
Fiber comfort
It has a cashmere-like feel. Its single filament fineness is thin and its specific gravity is light. Its breaking elongation, curl elasticity and curl recovery rate are closest to those of cashmere and cashmere. Wool has fluffy and fine fibers that feel as soft, comfortable and smooth as cashmere; the fibers are white, with a silky natural luster and an elegant appearance.
Hygroscopicity and moisture conductivity
The cross-section of the milk protein fiber is irregular and circular. The cross-section is full of gaps and there are many grooves in the longitudinal direction. The protein molecules are distributed on the surface of the fiber. Containing natural protein moisturizing factors and a large number of hydrophilic groups, it can quickly absorb human sweat and quickly dissipate it into the air through grooves, keeping human skin dry at all times.
Endothermic and exothermic properties
The three-dimensional porous microporous structure of the fiber and the groove structure on the longitudinal surface determine the fiber’s characteristics of being warm in winter and cool in summer: made in summer The light and thin fabric can quickly absorb the moisture and sweat emitted by the skin and quickly diffuse it into the air, keeping the skin dry and breathable; in winter, it is made of thick fabric, with micropores absorbing the heat emitted by the body, effectively blocking air circulation and preventing the intrusion of cold air. Lightweight and warm. </p
