Colored organic fiber, cloth, and garments, and method for producing cloth

Abstract

A problem of the invention is to provide a colored organic fiber that has a deep color and excellent flame retardancy, a cloth and garments each composed of the foregoing organic fiber, and a method for producing a cloth. To solve this problem, a colored organic fiber having a content of a carrier agent of 1.8% by mass or less relative to the fiber mass is provided. A cloth or garments are obtained, if desired.

1 . A colored organic fiber having a content of a carrier agent of 1.8% by mass or less relative to the fiber mass. 
     
     
         2 . The colored organic fiber according to  claim 1 , wherein the content of the carrier agent is 0.1 to 1.8% by mass relative to the fiber mass. 
     
     
         3 . The colored organic fiber according to  claim 1 , wherein the carrier agent is any one or more selected from the group consisting of DL-β-ethylphenethyl alcohol, 2-ethoxybenzyl alcohol, 3-chlorobenzyl alcohol, 2,5-dimethylbenzyl alcohol, 2-nitrobenzyl alcohol, p-isopropylbenzyl alcohol, 2-methylphenethyl alcohol, 3-methylphenethyl alcohol, 4-methylphenethyl alcohol, 2-methoxybenzyl alcohol, 3-iodobenzyl alcohol, cinnamic alcohol, p-anisyl alcohol, benzhydrol, benzyl alcohol, propylene glycol phenyl ether, ethylene glycol phenyl ether, and N-methylformanilide. 
     
     
         4 . The colored organic fiber according to  claim 1 , wherein the organic fiber is any one selected from the group consisting of a meta-type wholly aromatic polyamide fiber, a para-type wholly aromatic polyamide fiber, a polybenzoxazole (PBO) fiber, a polybenzimidazole (PBI) fiber, a polybenzthiazole (PBTZ) fiber, a polyimide (PI) fiber, a polysulfonamide (PSA) fiber, a polyetheretherketone (PEEK) fiber, a polyether imide (PEI) fiber, a polyarylate (PAr) fiber, a melamine fiber, a phenol fiber, a fluorine-based fiber, and a polyphenylene sulfide (PPS) fiber. 
     
     
         5 . The colored organic fiber according to  claim 1 , wherein the organic fiber is a meta-type wholly aromatic polyamide fiber having a crystallinity of 15 to 25%. 
     
     
         6 . The colored organic fiber according to  claim 1 , wherein the organic fiber is a meta-type wholly aromatic polyamide fiber having a content of residual solvent of 1.0% by mass or less. 
     
     
         7 . The colored organic fiber according to  claim 1 , wherein the organic fiber is a meta-type wholly aromatic polyamide fiber having a content of residual solvent of 0.1% by mass or less. 
     
     
         8 . The organic fiber according to  claim 6 , wherein the residual solvent is any one selected from the group consisting of N,N-dimethylformamide, N,N-dimethylacetamide, N-methyl-2-pyrrolidone, and dimethyl sulfoxide. 
     
     
         9 . The colored organic fiber according to  claim 1 , wherein the organic fiber is a meta-type wholly aromatic polyamide fiber; and a meta-type wholly aromatic polyamide forming the a meta-type wholly aromatic polyamide fiber is an aromatic polyamide in which in an aromatic polyamide skeleton containing a repeating structural unit represented by the following formula (1), an aromatic diamine component or aromatic dicarboxylic acid halide component that is different from a main structural unit of the repeating structure is copolymerized as a third component such that a proportion of the third component is 1 to 10 mol % relative to the whole amount of the repeating structural units of the aromatic polyamide:
   —(NH—Ar1—NH—CO—Ar1—CO)—  (1)
   wherein Ar 1 is a divalent aromatic group having a linking group in a position other than the meta position or an axially parallel direction.   
     
     
         10 . The colored organic fiber according to  claim 9 , wherein the third component is an aromatic diamine represented by the following formula (2) or (3) or an aromatic dicarboxylic acid halide represented by the following formula (4) or (5):
   H 2 N—Ar2—NH 2    (2)
     H 2 N—Ar2—Y—Ar2—NH 2    (3)
     XOC—Ar3—COX   (4)
     XOC—Ar3—Y—Ar3—COX   (5)
   wherein Ar2 is a divalent aromatic group different from Ar1; Ar3 is a divalent aromatic group different from Ar1; Y is at least one atom or functional group selected from the group consisting of an oxygen atom, a sulfur atom, and an alkylene group; and X is a halogen atom.   
     
     
         11 . A cloth comprising the colored organic fiber according to  claim 1 . 
     
     
         12 . The cloth according to  claim 11 , wherein the cloth contains any one or more selected from the group consisting of a polyester fiber, a cellulose fiber, a polyamide fiber, a polyolefin fiber, an acrylic fiber, a rayon fiber, a cotton fiber, an animal hair fiber, a polyurethane fiber, a polyvinyl chloride fiber, a polyvinylidene chloride fiber, an acetate fiber, and a polycarbonate fiber. 
     
     
         13 . The cloth according to  claim 11 , wherein any one of fibers constituting the cloth contains a flame retarder. 
     
     
         14 . The cloth according to  claim 11 , wherein any one of fibers constituting the cloth contains a UV absorber or a UV reflector. 
     
     
         15 . The cloth according to  claim 11 , wherein an areal weight of the cloth is 300 g/m 2  or less. 
     
     
         16 . The cloth according to  claim 11 , wherein an LOI is 26 or more. 
     
     
         17 . The cloth according to  claim 11 , wherein an afterflame time in the vertical flame test (JIS L1091A-4: three second flame contact) is 1 second or less. 
     
     
         18 . The cloth according to  claim 11 , wherein a brightness index L value is 80 or less. 
     
     
         19 . Garments comprising the cloth according to  claim 11 . 
     
     
         20 . A method for producing the cloth containing the colored organic fiber according to  claim 11 , comprising
 dyeing a cloth containing an organic fiber with a carrier agent and then washing the cloth with hot water at a temperature of 90 to 140° C. for 10 to 30 minutes, thereby controlling a content of the carrier agent contained in the organic fiber to 1.8% by mass or less relative to the fiber mass.