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Silk as a natural protein fiber is an excellent textile materials. Its fiber is thin and soft, smooth, flexible, good gloss, good strength and elongation, the Fiber Queen said. The silk spinning raw materials scouring remove some sericin, oil and impurities, and silk fiber is soft, fluffy, smooth and elastic. Scouring their quality silk production, quality and cost is directly related to the impact of the economic efficiency of enterprises. Requirements: (1) does not damage or as little as possible of the original mechanical and physical properties of the fiber damage; (2) the process is simple, short process to facilitate process automation and continuous; (3) the amount of chemicals less energy consumption is low. Silk spinning raw materials refined after years of exploration and research, has formed a relatively mature technology, but in a certain lack of surviving chemical usage or production environment, and therefore it is necessary to explore new methods of refining. Ultrasonic cavitation effect can be due to the role of the dispersion, emulsification, washed and depolymerization, the use of cavitation to the dirt on the surface tension in the fiber can be reduced, so that sericin and fats can be emulsified, clear; cavitation can also make the increasing specific surface area of ??the inside of the fiber, thereby increasing the specific surface area of ??the fiber adsorption of chemicals, the medicine sufficient contact with the fibers, and enhance the reaction rate; cavitation also help to destroy the hair color system decoloring thus play the role of . Therefore, the use of ultrasound technology scouring may become efficient low pollution-free new the silk spinning refining methods, research of this subject is of great significance. The main topic of research Lag head long spit two main raw material of the ultrasonic scouring process, first to explore the feasibility of Ultrasonic scouring, followed discussed Lag head feedstock ultrasonic bleaching scouring process, affect the scouring and bleaching effect of the ultrasonic frequency, chemical concentration time scouring and scouring temperature test discussion, came to the conclusion ultrasonic bleaching, scouring instead of conventional bleaching, scouring the basis, and derived the optimal ultrasonic scouring process and ultrasonic bleaching scouring. The results are as follows: 1. Hysteresis header class the long spit feedstock ultrasonic scouring (1) In the case of the same other process conditions, the the 23kHz ultrasonic scouring effect superior to 40kHz. (2) Compared to the traditional process, the use of ultrasonic scouring scouring low-temperature, short time, the decrease in drug use, it is a cost-efficient scouring process. (3) stagnation head higher oil content of raw materials, the best of its ultrasonic scouring process: prepreg temperature, time and amount of alkali in the ultrasonic frequency 23kHz conditions were 40 ° C, 40min, 0.2 g / l, scouring The temperature, time and the amount of alkali, respectively 80 ℃, 20min, 0g / l. (4) the long spit classes raw materials containing gum ultrasonic scouring the optimum: in ultrasonic frequency 23kHz conditions, prepreg temperature, time and amount of alkali were 40 ° C, 40min, 0.4g / l Refine temperature, time and the amount of alkali, respectively 80 ℃, 60min, 0.8g / l. 2 the stagnation head ultrasonic bleaching scouring raw materials (1) ultrasonic technology used in the silk spinning raw materials bleaching scouring practicable, its bleaching effect was significantly superior to conventional bleaching scouring. (2) in the case to achieve the same whiteness using ultrasonic bleaching scouring the desired hydrogen peroxide concentration was significantly lower than a conventional bleach scouring. (3) is a cost-efficient compared to conventional bleaching scouring process, the use of ultrasound technology can reduce scouring temperature, shorten the refining time, bleaching scouring process. (4) Ultrasonic bleaching refining process more ultrasonic scouring process, the amount of alkali required slightly higher, the desired scouring a temperature of 60 ° C below the ultrasonic scouring the desired 80 ° C. (5) stagnation head the raw ultrasonic bleaching scouring the best process: in the the 23kHz ultrasonic frequency conditions, scouring temperature of 60 ℃, concise 20min, alkali dosage of 0.4 g / l, hydrogen peroxide concentration 6ml / l.
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