Thermoplastic polyurethane elastomer fiber and method for manufacturing the same, and fabric thereof

Abstract

A thermoplastic polyurethane elastomer fiber and a method for manufacturing the same, and a fabric thereof are provided. The method for manufacturing the thermoplastic polyurethane elastomer fiber includes steps as follows. A thermoplastic polyurethane elastomer particle having a Shore hardness ranging from 45D to 80D is provided. The thermoplastic polyurethane elastomer particle is melted to manufacture the thermoplastic polyurethane elastomer fiber.

What is claimed is: 
     
         1 . A method for manufacturing a thermoplastic polyurethane elastomer fiber, comprising:
 providing a thermoplastic polyurethane elastomer particle which has a Shore hardness ranging from 45D to 80D; and   melting the thermoplastic polyurethane elastomer particle to manufacture the thermoplastic polyurethane elastomer fiber.   
     
     
         2 . The method according to  claim 1 , wherein the thermoplastic polyurethane elastomer fiber is manufactured at a production speed ranging from 1200 m/minute to 6000 m/minute. 
     
     
         3 . The method according to  claim 1 , further comprising:
 stretching the thermoplastic polyurethane elastomer fiber at a temperature ranging from 50° C. to 150° C. in a drawing process.   
     
     
         4 . The method according to  claim 3 , wherein a draw ratio of the drawing process ranges from 1 to 4. 
     
     
         5 . The method according to  claim 3 , further comprising:
 setting the thermoplastic polyurethane elastomer fiber at a temperature ranging from 50° C. to 150° C. in a setting process after the drawing process.   
     
     
         6 . The method according to  claim 5 , wherein the temperature of the setting process is higher than the temperature of the drawing process by 5° C. to 20° C. 
     
     
         7 . The method according to  claim 1 , wherein the thermoplastic polyurethane elastomer particle contains 0.1 wt % to 4 wt % of a pigment based on a total weight of the thermoplastic polyurethane elastomer particle being 100 wt %. 
     
     
         8 . The method according to  claim 7 , wherein the thermoplastic polyurethane elastomer particle includes a normal thermoplastic polyurethane elastomer particle and a color thermoplastic polyurethane elastomer particle, and the color thermoplastic polyurethane elastomer particle contains the pigment. 
     
     
         9 . The method according to  claim 1 , wherein the thermoplastic polyurethane elastomer particle is extruded by an extruder to form the thermoplastic polyurethane elastomer fiber after being melted, and a temperature of the extruder is set to range from 150° C. to 250° C. 
     
     
         10 . The method according to  claim 1 , wherein a main component of a material forming the thermoplastic polyurethane elastomer particle is thermoplastic polyurethane 
     
     
         11 . The method according to  claim 1 , wherein the thermoplastic polyurethane elastomer particle is formed from thermoplastic polyurethane that has a weight average molecular weight ranging from 30000 to 450000. 
     
     
         12 . A thermoplastic polyurethane elastomer fiber manufactured by the method as claimed in  claim 1 , wherein a Shore hardness of the thermoplastic polyurethane elastomer fiber ranges from 45D to 80D. 
     
     
         13 . The thermoplastic polyurethane elastomer fiber according to  claim 12 , wherein fiber strength of the thermoplastic polyurethane elastomer fiber is higher than 2.0 cN/F. 
     
     
         14 . The thermoplastic polyurethane elastomer fiber according to  claim 12 , wherein an extensibility of the thermoplastic polyurethane elastomer fiber is lower than or equal to 80%. 
     
     
         15 . The thermoplastic polyurethane elastomer fiber according to  claim 12 , wherein a boiling water shrinkage of the thermoplastic polyurethane elastomer fiber is lower than or equal to 30%. 
     
     
         16 . A thermoplastic polyurethane elastomer fabric manufactured from the thermoplastic polyurethane elastomer fiber as claimed in  claim 12 .