Fiber assembly including cellulose water-repellent fiber, method for manufacturing same, and fiber product

Abstract

A fiber assembly including cellulose water-repellent fibers of the present invention is at least one selected from cotton, a fiber bundle, a yarn, and a gray fabric. A water-repellent agent is in a cross-linked state and fixed to the surface of cellulose fibers. A method for producing a fiber assembly including cellulose water-repellent fibers of the present invention includes applying a water-repellent agent to at least one fiber assembly selected from cotton, a fiber bundle, a yarn, and a gray fabric, and cross-linking the water-repellent agent to the surface of cellulose fibers by drying and then heat curing. Thus, the present invention provides a fiber assembly including cellulose water-repellent fibers that has durable water repellency, can be used for resist dyeing, and does not cause color transfer, a method for producing the fiber assembly, and a fiber product using the fiber assembly.

1 . A fiber assembly comprising cellulose water-repellent fibers,
 wherein the fiber assembly is at least one selected from cotton, a fiber bundle, a yarn, and a gray fabric, and   a water-repellent agent is in a cross-linked state and fixed to a surface of cellulose fibers.   
     
     
         2 . The fiber assembly according to  claim 1 , wherein the fiber assembly comprising the cellulose water-repellent fibers is a fiber assembly for resist dyeing. 
     
     
         3 . The fiber assembly according to  claim 1 , wherein the cellulose fibers are natural cellulose fibers. 
     
     
         4 . The fiber assembly according to  claim 1 , wherein the water-repellent agent is a fluorine-based water-repellent agent. 
     
     
         5 . The fiber assembly according to  claim 4 , wherein the cellulose water-repellent fibers have a fluorine content of 0.01 to 1.4% by mass. 
     
     
         6 . A method for producing the fiber assembly comprising the cellulose water-repellent fibers,
 the method comprising:   applying a water-repellent agent to at least one fiber assembly selected from cotton, a fiber bundle, a yarn, and a gray fabric; and   cross-linking the water-repellent agent to a surface of cellulose fibers by drying and then heat curing.   
     
     
         7 . The method according to  claim 6 , wherein heat curing is performed at a temperature of 150 to 190° C. for 2 to 20 minutes. 
     
     
         8 . The method according to  claim 6 , wherein when the water-repellent agent is cross-linked to the surface of the cellulose fibers in the cotton or the fiber bundle, the cotton or the fiber bundle is opened. 
     
     
         9 . The method according to  claim 6 , wherein the fiber assembly comprises cellulose fibers before piece dyeing. 
     
     
         10 . A fiber product comprising the fiber assembly comprising the cellulose water-repellent fibers, wherein the fiber assembly is at least one selected from cotton, a fiber bundle, a yarn, and a gray fabric, and a water-repellent agent is in a cross-linked state and fixed to a surface of cellulose fibers. 
     
     
         11 . The fiber product according to  claim 10 , wherein the fiber product is a piece dyed denim-like fabric. 
     
     
         12 . The method according to  claim 6 , wherein the cellulose fibers are natural cellulose fibers. 
     
     
         13 . The method according to  claim 6 , wherein the water-repellent agent is a fluorine-based water-repellent agent. 
     
     
         14 . The method according to  claim 6 , wherein the cellulose water-repellent fibers have a fluorine content of 0.01 to 1.4% by mass. 
     
     
         15 . The fiber product according to  claim 10 , wherein the cellulose fibers are natural cellulose fibers. 
     
     
         16 . The fiber product according to  claim 10 , wherein the water-repellent agent is a fluorine-based water-repellent agent. 
     
     
         17 . The fiber product according to  claim 10 , wherein the cellulose water-repellent fibers have a fluorine content of 0.01 to 1.4% by mass.