| The normal raw silk's demand is steady, the price of it is not high, and the market competition is high in and out of home recently. So if we can develop differentiate raw silks,the high quality and the high added value raw silks, it will be of special significance for the sericulture industry to increase the economic efficiency. The differentiate raw silk based on filature technical was simple and easy, it became one of the primary research at present.The raw silk of round cross-section is developed based on filature; the primary valued index of raw silk of round cross-section is roundness. The cross-section's making and extracting was very difficult. Firstly, the operation of the Hardy's microtome was modified, and a clamp with a notch was made for fixation of Hardy's slicer, then the fine slice can be made with the Hardy's microtone. After several different embedding fibers and embedding mediums slicing experiments, a method of Advance embedding was proposed, this method can minish the deformation of the raw silk's cross section. The epoxy resin and the collodion were used as the embedding medium, after several slicing experiments, the results indicate that the raw silk's cross section will not deform markedly if the epoxy resin was as the embedding medium, and the collodion as embedding medium after advanced embedded can improve the quality of the raw silk's cross section.When extracting the cross-section of raw silk, the raw silk was dyed into red firstly, which was different with the color with the embedding fibers and medium, the article proposed a new method to extract the cross-section of raw silk based on color model. This method used the characteristic of HSI color model, extracted the cross-section of raw silk from the slice by the Hue. The result indicated this method was useful to extract the color region. There were image noise and defects in the extracted image; the mathematical morphology was used to analyze the extracted image by image dilation and erosion, finally the cross-section of the raw silk is basic integrity.At the last, the characteristics parameters of the cross-section were calculated and statistics, the reeling devices was improved after analyzing the cross section features of reeling processing. The article made some recommendations to promote the development of roundness of raw silk. |