| 摘要 |
The present invention relates to polyurethane-urea elastomeric fiber with low-temperature workability, and more specifically to polyurethane-urea elastomeric fiber prepared by forming a prepolymer by means of a primary polymerization of polyol and diisocyanate, and then a secondary polymerization of the prepolymer, a first chain extender, and a second chain extender, wherein the first chain extender is one or more types selected from among aromatic, aliphatic and alicyclic amines, and the second chain extender is one or more types selected from among aromatic, aliphatic and low molecular-weight diols. The polyurethane-urea elastomeric fiber according to the present invention has improved fiber uniformity and workability and enhanced heat-set efficiency, thus allowing heat-setting to be carried out at a low temperature to keep thermal embrittlement from occurring to the fiber under treatment, and therefore the touch of the fabric can be improved and the edge-curling of the processed fabric can be prevented. |
