| Recent years, as Chinese economic rapidly development, and the improvement of people's living standard, fashion and health have become the mainstream consciousness. The development of new textile products which are environment friendly and good for human health has become one of the biggest projects in textile industry.Though many kinds of synthetic fiber have been developed, silk fibers, with the properties of fine and soft, elegant luster, good moisture absorption, still are the best in the aspect of aesthetics and comfort. The soft and light weight silk woven fabrics, which are very comfortable to wear, have always been high-end products in the market and are very popular all over the world. Now after years of research and development, silk knitted fabric has become a large class of silk products and formed a new industry. But as an emerging technology of the textile processing, the non-woven technology, has rarely been researched or developed in the silk industry.Currently, the dominating materials used for non-woven are synthetic fibers, non-woven products made from silk fiber materials are very little. In this project, the silk fiber was used as spunlace non-woven material to produce medical used silk products which can be used as women's sanitary napkins, pads and so on.there will be a broad prospects.The process of spunlace non-woven silk fabric is:loose silk fibers-opening and picking-carding-spunlace-nonwoven fabric. With the preliminary experiment, the following production problems were found:in the production process of spunlace non-woven, owing to the speed of carding too fast,the silk fiber was easy to produce static electricity. Then serious card fly appeared on the work roller and stripping roller and a large number of fibers winding in the output above the stripping roller brush roller which would bring down the web quality. During the spunlace process, the poor rapid wetting property made it difficult to move forward with the drum to spunlace, so the production could not proceed smoothly and the rapid wetting property of products was also poor to use.This paper studied how to improve the fiber's rapid wetting and anti-static property to achieve production requirements through the silk fibers hydrophilic and antistatic treatment. The main contents of this paper are:(1) improve the hydrophilic property test:find out the best hydrophilic agent, and discuss the effect of the concentration, soaking temperature and soaking time on the hydrophilic property, respectively. Choose the best hydrophilic agent and determine a better process parameter by comparing the time needed to be fully wetted, friction performance and handle property after adding hydrophilic agent. The best hydrophilic agent was NW-344/NW-269, process parameters were:concentration of 0.25%, dipping temperature 75℃, soaking time 15min. (2) improve the antistatic property test:find out the best antistatic agentand discuss the effects of concentration, soaking temperature, soaking time on property of anti-static, respectively. Antistatic agent selected was Henkel-G. Process parameters were:the concentration of 0.2%, 0.3% sodium acetate electrolyte, soaking temperature 75℃, soaking time 15min. (3) Hydrophilic agent and antistatic agent could affect each other in the hydrophilic property and antistatic property during the treatment of fiber. This work considerated these two factors together and designed the orthogonal test to find out the optimal process parameters:concentration of anti-static agent Henkel-G was 0.2%, concentration of hydrophilic agent NW-344/NW-269 was 0.25%, dipping temperature 80℃, soaking time 10min.The experimental results obtained by these optimal parameters were:full wetting time was 13.7s; the mass specific resistance was 2.2×108Ω·g/cm2.These results have reached the target of this paper and the production could proceed smoothly through the production department test. |
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