摘要
The multi-hollow three dimensional(3-D)crimp sta-ple were prepared by the non-symmetrical cooling spin-ning technology.The material properties,spinneret shape,drawing conditions,heat-setting conditions and silicon finishing conditions that influence the compression elasticity of the staple have been investigated.It is found that the compression elasticity of 3-D crimp PET staple is larger than that of 3-D crimp PP staple.The com-pression elasticity of the 5-hollow staple is much
The multi - hollow three dimensional (3 - D) crimp staple were prepared by the non - symmetrical cooling spinning technology. The material properties, spinneret shape, drawing conditions, heat - setting conditions and silicon finishing conditions that influence the compression elasticity of the staple have been investigated. It is found that the compression elasticity of 3 - D crimp PET staple is larger than that of 3 - D crimp PP staple. The compression elasticity of the 5 - hollow staple is much larger than that of the 4 - hollow staple. The compression elasticity of the 3 - D crimp staple decreases with the increase of the draw temperature, and increases with increasing the heat - setting temperature and silicon oil concentration.
