Treatment agent for polyester synthetic fibers, composition containing treatment agent for polyester synthetic fibers, and polyester synthetic fibers

Abstract

Disclosed is a polyester synthetic fiber treatment agent that contains silicones (A), (B), and (D), an anionic ingredient, and optionally a silicone (C). The amount of the silicone (C) contained in the treatment agent is less than 10% by mass. The silicone (A) is a modified silicone having an amino group. The silicone (B) is a silane coupling agent having at least one functional group selected from a methoxy group, ethoxy group, amino group, and isocyanate group but not including an epoxy group. The silicone (C) is at least one selected from silicone resins, dimethyl silicones, and alkyl-modified silicones but excluding those corresponding to being the silicone (A) and silanol-modified silicones with a number average molecular weight of not less than 20,000 but less than 200,000. The silicone (D) is a silanol-modified silicone with a number average molecular weight of not less than 20,000 but less than 200,000.

1 . A polyester synthetic fiber treatment agent comprising a silicone (A) described below, a silicone (B) described below, an anionic ingredient, a silicone (D) described below, and optionally a silicone (C) described below, wherein
 the amount of the silicone (C) contained in the treatment agent is less than 10% by mass,   the silicone (A) is a modified silicone having an amino group in the molecule,   the silicone (B) is a silane coupling agent having at least one functional group selected from the group consisting of a methoxy group, an ethoxy group, an amino group, and an isocyanate group but not including an epoxy group in the molecule,   the silicone (C) is at least one selected from the group consisting of silicone resins, dimethyl silicones, and alkyl-modified silicones but excluding those corresponding to being the silicone (A) and silanol-modified silicones with a number average molecular weight of not less than 20,000 but less than 200,000, and   the silicone (D) is a silanol-modified silicone with a number average molecular weight of not less than 20,000 but less than 200,000.   
     
     
         2 . A polyester synthetic fiber treatment agent comprising a silicone (A) described below, a silicone (B) described below, an anionic ingredient, a nonionic surfactant described below, and optionally a silicone (C) described below, wherein
 the amount of the silicone (C) contained in the treatment agent is less than 10% by mass,   the silicone (A) is a modified silicone having an amino group in the molecule,   the silicone (B) is a silane coupling agent having at least one functional group selected from the group consisting of a methoxy group, an ethoxy group, an amino group, and an isocyanate group but not including an epoxy group in the molecule,   the silicone (C) is at least one selected from the group consisting of silicone resins, dimethyl silicones, and alkyl-modified silicones but excluding those corresponding to being the silicone (A) and silanol-modified silicones with a number average molecular weight of not less than 20,000 but less than 200,000, and   the nonionic surfactant is at least one selected from the group consisting of compounds in which not less than 3 moles and not more than 50 moles in total of an alkylene oxide with not less than 2 and not more than 3 carbon atoms are added to 1 mole of a monohydric or higher and tetrahydric or lower alcohol with not less than 2 and not more than 18 carbon atoms, and block copolymers of a polyoxyethylene chain and a polyoxypropylene chain.   
     
     
         3 . The polyester synthetic fiber treatment agent according to  claim 1 , wherein assuming that the amount of the silicone (A) contained in the polyester synthetic fiber treatment agent is 100 parts by mass, the amount of the silicone (B) contained in the polyester synthetic fiber treatment agent is not less than 5 parts by mass and not more than 200 parts by mass. 
     
     
         4 . The polyester synthetic fiber treatment agent according to  claim 1 , wherein the anionic ingredient includes at least one selected from the group consisting of organic acids, alkyl sulfonic acids, alkyl phosphoric acid esters, polyoxyalkylene alkyl phosphoric acid esters, and metal salts thereof. 
     
     
         5 . The polyester synthetic fiber treatment agent according to  claim 1 , further comprising a nonionic surfactant, wherein
 the nonionic surfactant is at least one selected from the group consisting of compounds in which not less than 3 moles and not more than 50 moles in total of an alkylene oxide with not less than 2 and not more than 3 carbon atoms are added to 1 mole of a monohydric or higher and tetrahydric or lower alcohol with not less than 2 and not more than 18 carbon atoms, and block copolymers of a polyoxyethylene chain and a polyoxypropylene chain.   
     
     
         6 . The polyester synthetic fiber treatment agent according to  claim 5 , wherein in the polyester synthetic fiber treatment agent, the silicone (A) is contained at an amount of not less than 5% by mass and not more than 80% by mass, the silicone (B) is contained at an amount of not less than 1% by mass and not more than 25% by mass, the silicone (C) is contained at an amount of not less than 0% by mass but less than 10% by mass, the silicone (D) is contained at an amount of not less than 5% by mass and not more than 90% by mass, the nonionic surfactant is contained at an amount of not less than 1% by mass and not more than 25% by mass, and the anionic ingredient is contained at an amount of not less than 0.1% by mass and not more than 25% by mass. 
     
     
         7 . A composition containing a polyester synthetic fiber treatment agent comprising the polyester synthetic fiber treatment agent according to  claim 1  and a solvent. 
     
     
         8 . A polyester synthetic fiber to which the polyester synthetic fiber treatment agent according to  claim 1  is adhered. 
     
     
         9 . The polyester synthetic fiber according to  claim 8 , wherein the polyester synthetic fiber is applied to wadding.