Fiber for artificial hair, and hair accessory

Abstract

A fiber for artificial hair, having a base fiber, a cationic polymer, a cationic surfactant, and a nonionic surfactant, in which the cationic polymer, the cationic surfactant, and the nonionic surfactant are present in at least a part of a surface of the base fiber, the cationic polymer has, as a monomer unit, a monomer having at least one selected from the group consisting of a primary amino group, a secondary amino group, a tertiary amino group, acid-neutralized groups of these groups, and a quaternary ammonium group, the cationic surfactant has a carbon chain having 12 to 22 carbon atoms, the nonionic surfactant has a carbon chain having 10 to 20 carbon atoms, an HLB value of the nonionic surfactant is 13.0 or more, and a content of the cationic polymer is 0.005% by mass or more based on a total amount of the fiber for artificial hair.

1 . A fiber for artificial hair, comprising: a base fiber; a cationic polymer; a cationic surfactant; and a nonionic surfactant, wherein
 the cationic polymer, the cationic surfactant, and the nonionic surfactant are present in at least a part of a surface of the base fiber,   the cationic polymer has, as a monomer unit, a monomer having at least one selected from the group consisting of a primary amino group, a secondary amino group, a tertiary amino group, acid-neutralized groups of these groups, and a quaternary ammonium group,   the cationic surfactant has a carbon chain having 12 to 22 carbon atoms,   the nonionic surfactant has a carbon chain having 10 to 20 carbon atoms,   an HLB value of the nonionic surfactant is 13.0 or more, and   a content of the cationic polymer is 0.005% by mass or more based on a total amount of the fiber for artificial hair.   
     
     
         2 . The fiber for artificial hair according to  claim 1 , wherein the base fiber contains at least one selected from the group consisting of a homopolymer of vinyl chloride, a vinyl chloride-acrylonitrile copolymer, polyethylene terephthalate, a polyamide-based resin, polypropylene, and an acrylonitrile-styrene copolymer. 
     
     
         3 . The fiber for artificial hair according to  claim 1 , wherein the cationic polymer further has an alkyl (meth)acrylate as a monomer unit. 
     
     
         4 . The fiber for artificial hair according to  claim 1 , wherein the cationic surfactant includes a quaternary ammonium salt having a cation with a structure represented by General Formula (1) below: 
       
         
           
           
               
               
           
         
       
       [in Formula (1), R 11  represents a group containing a carbon chain having 12 to 22 carbon atoms, and R 12 , R 13 , and R 14  each independently represent a monovalent group]. 
     
     
         5 . The fiber for artificial hair according to  claim 1 , wherein the number of carbon atoms of the carbon chain of the cationic surfactant is 18 to 22. 
     
     
         6 . The fiber for artificial hair according to  claim 1 , wherein the HLB value of the nonionic surfactant is 13.0 to 19.0. 
     
     
         7 . The fiber for artificial hair according to  claim 1 , wherein the nonionic surfactant includes polyoxyalkylene alkyl ether. 
     
     
         8 . The fiber for artificial hair according to  claim 1 , wherein the content of the cationic polymer is 0.005 to 0.2% by mass based on the total amount of the fiber for artificial hair. 
     
     
         9 . The fiber for artificial hair according to  claim 1 , wherein a mass ratio of a total amount of the cationic surfactant and the nonionic surfactant with respect to the content of the cationic polymer is 3 to 160. 
     
     
         10 . The fiber for artificial hair according to  claim 1 , wherein a total amount of the cationic polymer, the cationic surfactant, and the nonionic surfactant is 0.1 to 4% by mass based on the total amount of the fiber for artificial hair. 
     
     
         11 . A headdress article comprising the fiber for artificial hair according to  claim 1 .