| Nowadays, the intersection with other fields brings vitality to the traditional textile. People pay more and more attention to the combination of textile engineering and cell biology, engineering, material science as well as clinical medicine, etc. Therefore, we focus on the research of medical silk braided suture in this paper.Medical silk braided suture is one of the most popular products in medical marketing all over the world. Most of people like it, for silk must be de-gummed and the braided construction gives suture better properties. China can make medical silk braided suture for several years, but the products still have a lot of drawbacks comparing with that from abroad.This article pay the focus on the the properties of materials , the structure of the suture and the finishing process in order to find out the optimum.Firstly, we analyzed the silk's structure and properties and described the process. In addition, the mechanical properties of the material used in this research are introduced in order to be sure that the material will not be damaged in the braiding process. Secondly, the content of core silk and shell silk and the braiding density are two main factors we study in this paper. The change of each factor will affect the properties of loop strength, abrasion resistance and bending rigidity of the braided suture. We hope to find the regularities.Thirdly, coating is also an important factor and its process can make suture more smooth and keep back capillarity. We choose two different kinds of coating methods and analyze the advantages and disadvantages separately. And the changing of concentration ratio of coating will affect the properties of loop strength, abrasion resistance and bending rigidity of the braided suture.Finally, the finishing of silk braided suture is heat setting. The result of orthogonal test shows that time and temperature of heating setting can remarkably influence the loop strength and the bending rigidity, but not the abrasion resistance. |
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