Dyeable fabric comprising melt-spun thermoplastic polyurethane fibers
By preparing a thermoplastic polyurethane composition containing polyols, hydroxyl-terminated chain extenders, and isocyanate components, and employing a melt spinning method and an isocyanate-functional crosslinking agent, the problems of high cost, time-consuming preparation, and poor high-temperature dyeing resistance of existing TPU fibers are solved. This enables the high-heat-resistant TPU fibers to be dyed at high temperatures and combined with other fibers, making them suitable for a variety of textile products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LUBRIZOL ADVANCED MATERIALS INC
- Filing Date
- 2021-10-26
- Publication Date
- 2026-07-03
AI Technical Summary
Existing thermoplastic polyurethane fibers have problems such as high production cost, time consumption and environmental pollution during melt spinning, and they are not resistant to high temperature dyeing, making it difficult to combine with other fibers, which affects the tensile and recovery properties of fabrics.
A thermoplastic polyurethane composition comprising polyol components, hydroxyl-terminated chain extenders, and isocyanate components is used to prepare fibers via melt spinning, and then cross-linked using an isocyanate-functional cross-linking agent to form high-heat-resistant melt-spun TPU fibers that can be dyed at high temperatures and combined with other fibers.
It enables high heat-resistant melt-spun TPU fibers to be dyed at high temperatures, maintain good tensile and recovery properties, and can be used in combination with other fibers, making it suitable for the manufacture of a variety of textile products.
Smart Images
Figure BDA0004201024830000111 
Figure BDA0004201024830000121 
Figure BDA0004201024830000122