| 摘要 |
Disclosed herein is an ultrafine polytrimethylene terephthalate conjugate fiber for artificial leather, which is obtained by mixing polytrimethylene terephthalate and alkali-soluble polyester using a distribution plate of a bi-component spinning pack, followed by spinning through a spinnerette, to obtain a spun grey yarn, which is then processed into a nonwoven fabric or woven/knit fabric, in which only the soluble polyester is dissolved in an aqueous alkali solution. The polytrimethylene terephthalate conjugate fiber of the current invention is advantageous of having alkali resistance and softness to the touch similar to nylon due to having a low Young's modulus, and also, can be uniformly dyed at a low temperature under atmospheric pressure. Therefore, the artificial leather resulting from such an ultrafine conjugate fiber can exhibit high softness to the touch and deep dyeability. In addition, a method of manufacturing the ultrafine polytrimethylene terephthalate conjugate fiber is provided. |
