Treatment agent for fibers, first treatment agent for fibers, second treatment agent for fibers, composition containing first treatment agent for fibers, diluent for treatment agent for fibers, treatment method for fibers, and fibers

Abstract

The present invention addresses the problem of improving friction characteristics, when wet, of fibers to which a treatment agent for fibers is adhered. The treatment agent for fibers contains the fatty acid (A) below, an organic phosphate compound (B), and a (poly)oxyalkylene derivative (C). The fatty acid (A) is at least one fatty acid selected from C1-6 fatty acids, C1-6 hydroxy fatty acids, and salts of the aforementioned fatty acids.

1 . A fiber treatment agent for treating a fiber, comprising a fatty acid (A), an organic phosphoric acid ester compound (B), and a (poly)oxyalkylene derivative (C), wherein
 the fiber treatment agent includes a first fiber treatment agent, which contains the organic phosphoric acid ester compound (B), and a second fiber treatment agent, which contains the (poly)oxyalkylene derivative (C), the fatty acid (A) being contained in either or both of the first fiber treatment agent and the second fiber treatment agent,   an acid value measured for the first fiber treatment agent by a potentiometric titration method is not less than 0.01 mg KOH/g and not more than 60 mg KOH/g,   the first fiber treatment agent is used as a first fiber treatment agent-containing composition containing the first fiber treatment agent and water, and   the fatty acid (A) is at least one selected from the group consisting of a fatty acid alkali metal salt with 1 to 4 carbon atoms and a hydroxy fatty acid alkali metal salt with 1 to 4 carbon atoms having a hydroxy group in its molecule.   
     
     
         2 . The fiber treatment agent according to  claim 1 , wherein if the sum of the contents of the fatty acid (A), the organic phosphoric acid ester compound (B), and the (poly)oxyalkylene derivative (C) in the fiber treatment agent is taken as 100% by mass, the fiber treatment agent contains the fatty acid (A) at a ratio of not less than 0.001% by mass and not more than 20% by mass. 
     
     
         3 . (canceled) 
     
     
         4 . The fiber treatment agent according to  claim 1 , wherein
 if the sum of the contents of the organic phosphoric acid ester compound (B) and the fatty acid (A) in the first fiber treatment agent is taken as 100% by mass, the first fiber treatment agent contains the organic phosphoric acid ester compound (B) at a ratio of not less than 90% by mass and not more than 100% by mass and the fatty acid (A) at a ratio of not less than 0% by mass and not more than 10% by mass, and   if the sum of the contents of the (poly)oxyalkylene derivative (C) and the fatty acid (A) in the second fiber treatment agent is taken as 100% by mass, the second fiber treatment agent contains the (poly)oxyalkylene derivative (C) at a ratio of not less than 90% by mass and not more than 100% by mass and the fatty acid (A) at a ratio of not less than 0% by mass and not more than 10% by mass.   
     
     
         5 - 7 . (canceled) 
     
     
         8 . The fiber treatment agent according to  claim 1 , wherein the organic phosphoric acid ester compound (B) contains at least one selected from the group consisting of an alkyl phosphoric acid ester and a salt thereof, the alkyl phosphoric acid ester having in its molecule a residue in which a hydroxyl group is removed from an aliphatic alcohol with 12 to 22 carbon atoms or a residue in which a hydroxyl group is removed from an aliphatic alcohol with 12 to 22 carbon atoms added with an alkylene oxide with 2 to 3 carbon atoms. 
     
     
         9 . The fiber treatment agent according to  claim 1 , wherein the fiber is a synthetic fiber. 
     
     
         10 . The fiber treatment agent according to  claim 1 , wherein the fiber is a polyester short fiber. 
     
     
         11 . The fiber treatment agent according to  claim 1 , wherein the fiber is a polyethylene terephthalate fiber. 
     
     
         12 . The fiber treatment agent according to  claim 1 , wherein the fiber is a short fiber. 
     
     
         13 . A first fiber treatment agent, comprising an organic phosphoric acid ester compound (E), wherein
 the first fiber treatment agent is used in combination with a second fiber treatment agent, which contains a (poly)oxyalkylene derivative (F),   a fatty acid (D) is further contained in either or both of the first fiber treatment agent and the second fiber treatment agent,   an acid value measured for the first fiber treatment agent by a potentiometric titration method is not less than 0.01 mg KOH/g and not more than 60 mg KOH/g,   the first fiber treatment agent is used as a first fiber treatment agent-containing composition containing the first fiber treatment agent and water, and   the fatty acid (D) is at least one selected from the group consisting of a fatty acid alkali metal salt with 1 to 4 carbon atoms and a hydroxy fatty acid alkali metal salt with 1 to 4 carbon atoms having a hydroxy group in its molecule, and a salt thereof.   
     
     
         14 . (canceled) 
     
     
         15 . The first fiber treatment agent according to  claim 13 , wherein
 when the first fiber treatment agent contains the organic phosphoric acid ester compound (E) and the fatty acid (D) and if the sum of the contents of the organic phosphoric acid ester compound (E) and the fatty acid (D) in the first fiber treatment agent is taken as 100% by mass,   the first fiber treatment agent contains the organic phosphoric acid ester compound (E) at a ratio of not less than 90% by mass and not more than 99.999% by mass and the fatty acid (D) at a ratio of not less than 0.001% by mass and not more than 10% by mass.   
     
     
         16 . The first fiber treatment agent according to  claim 15 , wherein
 when the first fiber treatment agent contains the organic phosphoric acid ester compound (E) and the fatty acid (D) and if the sum of the contents of the organic phosphoric acid ester compound (E) and the fatty acid (D) in the first fiber treatment agent is taken as 100% by mass,   the first fiber treatment agent contains the organic phosphoric acid ester compound (E) at a ratio of not less than 95% by mass and not more than 99.999% by mass and the fatty acid (D) at a ratio of not less than 0.001% by mass and not more than 5% by mass.   
     
     
         17 . The first fiber treatment agent according to  claim 13 , wherein
 when the first fiber treatment agent contains the organic phosphoric acid ester compound (E) and the fatty acid (D) and the second fiber treatment agent contains the (poly)oxyalkylene derivative (F) and the fatty acid (D) and if the sum of the contents of the organic phosphoric acid ester compound (E) and the fatty acid (D) in the first fiber treatment agent is taken as 100% by mass,   the first fiber treatment agent contains the organic phosphoric acid ester compound (E) at a ratio of not less than 90% by mass and not more than 99.999% by mass and the fatty acid (D) at a ratio of not less than 0.001% by mass and not more than 10% by mass.   
     
     
         18 . The first fiber treatment agent according to  claim 17 , wherein
 when the first fiber treatment agent contains the organic phosphoric acid ester compound (E) and the fatty acid (D) and the second fiber treatment agent contains the (poly)oxyalkylene derivative (F) and the fatty acid (D) and if the sum of the contents of the organic phosphoric acid ester compound (E) and the fatty acid (D) in the first fiber treatment agent is taken as 100% by mass,   the first fiber treatment agent contains the organic phosphoric acid ester compound (E) at a ratio of not less than 95% by mass and not more than 99.999% by mass and the fatty acid (D) at a ratio of not less than 0.001% by mass and not more than 5% by mass.   
     
     
         19 . A second fiber treatment agent, comprising a (poly)oxyalkylene derivative (F), wherein
 the second fiber treatment agent is used in combination with a first fiber treatment agent, which contains an organic phosphoric acid ester compound (E),   an acid value measured for the first fiber treatment agent by a potentiometric titration method is not less than 0.01 mg KOH/g and not more than 60 mg KOH/g,   the first fiber treatment agent is used as a first fiber treatment agent-containing composition containing the first fiber treatment agent and water,   a fatty acid (D) is further contained in either or both of the first fiber treatment agent and the second fiber treatment agent, and   the fatty acid (D) is at least one selected from the group consisting of a fatty acid alkali metal salt with 1 to 4 carbon atoms and a hydroxy fatty acid alkali metal salt with 1 to 4 carbon atoms having a hydroxy group in its molecule, and a salt thereof.   
     
     
         20 . The second fiber treatment agent according to  claim 19 , wherein
 when the second fiber treatment agent contains the (poly)oxyalkylene derivative (F) and the fatty acid (D) and if the sum of the contents of the (poly)oxyalkylene derivative (F) and the fatty acid (D) in the second fiber treatment agent is taken as 100% by mass,   the second fiber treatment agent contains the (poly)oxyalkylene derivative (F) at a ratio of not less than 90% by mass and not more than 99.999% by mass and the fatty acid (D) at a ratio of not less than 0.001% by mass and not more than 10% by mass.   
     
     
         21 . The second fiber treatment agent according to  claim 20 , wherein
 when the second fiber treatment agent contains the (poly)oxyalkylene derivative (F) and the fatty acid (D) and if the sum of the contents of the (poly)oxyalkylene derivative (F) and the fatty acid (D) in the second fiber treatment agent is taken as 100% by mass,   the second fiber treatment agent contains the (poly)oxyalkylene derivative (F) at a ratio of not less than 95% by mass and not more than 99.999% by mass and the fatty acid (D) at a ratio of not less than 0.001% by mass and not more than 5% by mass.   
     
     
         22 . The second fiber treatment agent according to  claim 19 , wherein
 when the first fiber treatment agent contains the organic phosphoric acid ester compound (E) and the fatty acid (D) and the second fiber treatment agent contains the (poly)oxyalkylene derivative (F) and the fatty acid (D) and if the sum of the contents of the (poly)oxyalkylene derivative (F) and the fatty acid (D) in the second fiber treatment agent is taken as 100% by mass,   the second fiber treatment agent contains the (poly)oxyalkylene derivative (F) at a ratio of not less than 90% by mass and not more than 99.999% by mass and the fatty acid (D) at a ratio of not less than 0.001% by mass and not more than 10% by mass.   
     
     
         23 . The second fiber treatment agent according to  claim 22 , wherein
 If the sum of the contents of the (poly)oxyalkylene derivative (F) and the fatty acid (D) in the second fiber treatment agent is taken as 100% by mass,   the second fiber treatment agent contains the (poly)oxyalkylene derivative (F) at a ratio of not less than 95% by mass and not more than 99.999% by mass and the fatty acid (D) at a ratio of not less than 0.001% by mass and not more than 5% by mass.   
     
     
         24 . A composition containing first fiber treatment agent, comprising the first fiber treatment agent according to  claim 13  and water. 
     
     
         25 . A dilute liquid of fiber treatment agent, comprising the fiber treatment agent according to  claim 1  and water. 
     
     
         26 . A dilute liquid of fiber treatment agent, comprising the first and second fiber treatment agents according to  claim 13 . 
     
     
         27 . The dilute liquid of fiber treatment agent according to  claim 26 , wherein the dilute liquid of fiber treatment agent has a ratio between the contents of the first fiber treatment agent and the second fiber treatment agent of such that the first fiber treatment agent/the second fiber treatment agent is not less than 1/9 and not more than 9/1. 
     
     
         28 . A method for treating a fiber, comprising applying to a fiber a dilute liquid of fiber treatment agent, obtained by adding the first and second fiber treatment agents according to  claim 13  to water. 
     
     
         29 . A fiber to which the first and second fiber treatment agents according to  claim 13  are adhered.