Processing agent for polyester fiber structure and production method for polyester fiber structure using same

Abstract

A terminal blocking processing agent of a polyester-based fiber structure allows a treated product to efficiently take up a terminal blocking agent. A method of producing a polyester-based fiber structure having hydrolysis-resistant properties using the terminal blocking processing agent, is characterized in that terminal blocking treatment is carried out with the terminal blocking processing agent in which a carbodiimide-based terminal blocking agent and a carrier containing alkyl phthalimide and benzoate as essential components are emulsified or dispersed in water or a solvent using a surfactant

1 .- 9 . (canceled) 
     
     
         10 . A finishing agent for a polyester-based fiber structure comprising a carbodiimide compound and a carrier agent, emulsified or dispersed in water or a solvent, said carrier agent containing a benzoic acid compound and a phthalimide compound as essential components. 
     
     
         11 . The finishing agent according to  claim 10 , wherein said carbodiimide compound is a compound represented by formula (I): 
       
         
           
           
               
               
           
         
       
       wherein R1 represents one selected from an alkyl group with 1 to 20 carbon atoms, a cycloalkyl group with 5 to 12 carbon atoms, an aryl group with 6 to 20 carbon atoms, an allyl group and an aralkyl group with 7 to 20 carbon atoms. 
     
     
         12 . The finishing agent according to  claim 10 , wherein said carbodiimide is at least one selected from N,N′-di-2,6-diisopropylphenyl carbodiimide, N,N′-di-cyclohexyl carbodiimide and N,N′-diisopropyl carbodiimide. 
     
     
         13 . The finishing agent according to  claim 10 , wherein said carrier agent comprises benzyl benzoate and N-butyl phthalimide as said essential components. 
     
     
         14 . A method of producing a polyester-based fiber structure comprising taking up said finishing agent according to  claim 10  into an inside portion of said polyester-based fiber structure. 
     
     
         15 . A method of producing a polyester-based fiber structure comprising taking up said finishing agent according to  claim 11  into an inside portion of said polyester-based fiber structure. 
     
     
         16 . A method of producing a polyester-based fiber structure comprising taking up said finishing agent according to  claim 12  into an inside portion of said polyester-based fiber structure. 
     
     
         17 . A method of producing a polyester-based fiber structure comprising taking up said finishing agent according to  claim 13  into an inside portion of said polyester-based fiber structure. 
     
     
         18 . A method of producing a polyester-based fiber structure comprising, in the order mentioned, applying a treatment solution containing said finishing agent according to  claim 10  to a polyester-based fiber(s); a drying step; and a heat treatment step. 
     
     
         19 . A method of producing a polyester-based fiber structure comprising, in the order mentioned, applying a treatment solution containing said finishing agent according to  claim 11  to a polyester-based fiber(s); a drying step;.and a heat treatment step. 
     
     
         20 . A method of producing a polyester-based fiber structure comprising, in the order mentioned, applying a treatment solution containing said finishing agent according to  claim 12  to a polyester-based fibers(s); a drying step; and a heat treatment step. 
     
     
         21 . A method of producing a polyester-based fiber structure comprising, in the order mentioned, applying a treatment solution containing said finishing agent according to  claim 13  to a polyester-based fiber(s); a drying step; and a heat treatment step. 
     
     
         22 . A method of producing a polyester-based fiber structure comprising supplying a polyester-based fiber(s) into a treatment solution containing said finishing agent according to  claim 10  to process the fiber(s) in a bath while circulating said treatment solution. 
     
     
         23 . A method of producing a polyester-based fiber structure comprising supplying a polyester-based fiber(s) into a treatment solution containing said finishing agent according to  claim 11  to process the fiber(s) in a bath while circulating said treatment solution. 
     
     
         24 . A method of producing a polyester-based fiber structure comprising supplying a polyester-based fiber(s) into a treatment solution containing said finishing agent according to  claim 12  to process the fiber(s) in a bath while circulating said treatment solution. 
     
     
         25 . A method of producing a polyester-based fiber structure comprising supplying a polyester-based fiber(s) into a treatment solution containing said finishing agent according to  claim 13  to process the fiber(s) in a bath while circulating said treatment solution. 
     
     
         26 . A method of producing a polyester-based fiber structure comprising applying a treatment solution containing said finishing agent according to  claim 10  to a polyester-based fiber(s); and then subjecting: said polyester-based fiber(s) to a wet heat treatment. 
     
     
         27 . A method of producing a polyester-based fiber structure comprising applying a treatment solution containing, said finishing agent according to  claim 11  to a polyester-based fiber(s); and then, subjecting said polyester-based fiber(s) to a wet heat treatment. 
     
     
         28 . A method of producing a polyester-based fiber structure comprising applying a treatment solution containing said finishing agent according to  claim 12  to a polyester based fiber(s) and then subjecting said polyester-based fiber(s) to a wet heat treatment. 
     
     
         29 . A method of producing a polyester-based fiber structure comprising applying a treatment solution containing said finishing agent according to  claim 13  to a polyester-based fiber(s); and then subjecting said polyester-based fiber(s) to a wet heat treatment. 
     
     
         30 . A polyester-based fiber structure obtained by said method according to  claim 14 , wherein a concentration of said, finishing agent becomes lower from an outer layer toward an inner layer in the cross section of a single fiber of said polyester-based fiber(s).