It is learned that the method of quantitative chemical analysis of milk protein modified polyacrylonitrile blended products has been completed. In the future, the inspection of milk fiber has a scientific and normative basis. The product standard of milk fiber is being drafted jointly by China Textile Industry Association, national Fiber Inspection Bureau and Shanghai Zheng Jia Milk Technology Co., Ltd., and is expected to be formally promulgated and implemented this year.

Milk fiber is known as milk protein modified polyacrylonitrile fiber. It is a kind of milk protein with a linear macromolecular structure, which is prepared by blending, cross-linking and grafting with polyacrylonitrile.

Zheng Yu, general manager of Shanghai Zheng Jia milk Yarn Technology Co., Ltd., said that since a period of time, due to the lack of uniform standards, there have been many problems in the production, marketing and testing of milk fiber.

For example, how much protein content of milk fiber accounts for can be called milk protein fiber; for example, the basis of consumer identification of milk fiber is not clear, resulting in blindness in safeguarding rights and counterfeiting, which will adversely affect the normal development of milk fiber industry. This situation is more or less the same problem in many new fibers, such as soybean protein fiber, bamboo fiber, bamboo charcoal fiber and other new fibers. Now, the introduction of milk fiber testing standards will completely change the milk fiber no standard situation, improve the market competitiveness of milk fiber, and lay the foundation for the certification of China's new fiber by the international authoritative inspection institution.