Swimsuit

Abstract

The present invention relates to a swimsuit 23 including an elastic polyurethane yarn. The elastic polyurethane yarn contains; 0.5 to 10 mass % of a cationic high-molecular-weight compound A having a number-average molecular weight of 2000 or more; and an inorganic chlorine deterioration inhibitor B. The mass ratio of the cationic high-molecular-weight compound A to the inorganic chlorine deterioration inhibitor B ranges from 0.3 to 3, and a silicone oil is applied to the elastic polyurethane yarn. A fabric for the swimsuit is treated with water repellent finishing. The swimsuit 23 preferably includes an elastic polyurethane yarn whose ratio of fluorine (F) to carbon (C) on the elastic polyurethane yarn is 0.030 or more in an elemental mass concentration according to scanning electron microscope-energy dispersive X-ray spectroscopy (SEM-EDX). Thereby, it is possible to provide a swimsuit with high water repellency, low water retention rate, and high buoyancy.

1 . A swimsuit comprising an elastic polyurethane yarn,
 wherein the elastic polyurethane yarn comprises:   0.5 to 10% by mass of a cationic high-molecular-weight compound A having a number-average molecular weight of 2000 or more; and   an inorganic chlorine deterioration inhibitor B,   a mass ratio of the cationic high-molecular-weight compound A to the inorganic chlorine deterioration inhibitor B ranges from 0.3 to 3,   a silicone oil is applied to the elastic polyurethane yarn, and   a fabric for the swimsuit is treated with water repellent finishing.   
     
     
         2 . The swimsuit according to  claim 1 , wherein the swimsuit comprises an elastic polyurethane yarn whose ratio of fluorine (F) to carbon (C) on the elastic polyurethane yarn is 0.030 or more in an elemental mass concentration according to scanning electron microscope-energy dispersive X-ray spectroscopy (SEM-EDX). 
     
     
         3 . The swimsuit according to  claim 1 , wherein the swimsuit comprises 5 to 70% by mass of the elastic polyurethane yarn. 
     
     
         4 . The swimsuit according to  claim 1 , wherein the fabric for the swimsuit has a water repellency of grade 4 or higher in the spray test according to JIS L 1092. 
     
     
         5 . The swimsuit according to  claim 1 , wherein the fabric for the swimsuit has a water retention rate after 60 minutes of 50% by mass or less of the mass of the swimsuit. 
     
     
         6 . The swimsuit according to  claim 1 , wherein the elastic polyurethane yarn is covered with another synthetic fiber yarn. 
     
     
         7 . The swimsuit according to  claim 1 , wherein the fabric for the swimsuit comprises a polyamide fiber yarn or a polyester fiber yarn. 
     
     
         8 . The swimsuit according to  claim 1 , wherein the fabric for the swimsuit has a tearing strength of 8 N or more according to JIS L 1096. 
     
     
         9 . The swimsuit according to  claim 1 , wherein the fabric for the swimsuit has a bursting strength of 200 kPa or more according to JIS L 1096. 
     
     
         10 . The swimsuit according to  claim 1 , wherein the fabric for the swimsuit is at least one of a woven fabric or a knitted fabric. 
     
     
         11 . The swimsuit according to  claim 1 , wherein the fabric for the swimsuit has a buoyancy of 1.70 g or more per 1 g of the fabric. 
     
     
         12 . The swimsuit according to  claim 1 , wherein the swimsuit has a buoyancy of 1.45 g or more per 1 g of the swimsuit.