Woven fabric for swimwear and swimwear using same

Abstract

There is provided swimwear which satisfies the stretchability, strength, ease of movement, and the like desired for swimwear, has superior water repellency, and reduces friction resistance between a surface of the swimwear and water. The woven fabric for swimwear according to the present invention has a weave structure in which covering coated threads are arranged in at least a part of a warp or weft yarn, the covering coated threads each including an elastic fiber as a core yarn and a synthetic fiber filament as a sheath yarn, where, in a woven fabric structure, one of the warp yarn and the weft yarn has a larger number of float yarns. A direction with a large number of float yarns is defined as a body length (height) direction of the swimwear, a ratio of resistance yarn in a direction perpendicular to the body length (height) direction is 40% or less. The woven fabric is suitably used for swimwear.

1 . A woven fabric for swimwear that is a stretch woven fabric in which covering coated threads are arranged in at least a part of a warp or weft yarn, the covering coated threads each including an elastic fiber as a core yarn and a synthetic fiber filament as a sheath yarn,
 the woven fabric comprising a weave structure in which one of the warp yarn and the weft yarn has a large number of float yarns on a surface of the woven fabric,   wherein a direction with a large number of float yarns is defined as a body length (height) direction of the swimwear, a ratio of resistance yarn in a direction perpendicular to the body length (height) direction is 40% or less, and the ratio is represented by the following Formula (I):
     Rr =( F/P )×100  (I)
 
   Rr: the ratio of resistance yarn (%)   F: the number (pieces) of squares of float yarns in the direction perpendicular to the body length (height) direction of swimwear in one weave repeat   P: the number (pieces) of squares of one weave repeat   
     
     
         2 . The woven fabric for swimwear according to  claim 1 , wherein the woven fabric for swimwear is the stretch woven fabric, a total cover factor represented by the following Formula (II) is 2800 or more, and a cover factor in a direction with a large number of float yarns in either the warp yarn or the weft yarn and a cover factor in a direction with a small number of float yarns in either the warp yarn or the weft yarn on the surface of the woven fabric satisfy the following Formula (III):
     cf =[√ Dx×Mx ]+[√ Dy×My ]  (II)
       cfx≥cfy   (III)
   cf: total cover factor   cfx=[√Dx×Mx]: cover factor in the direction with a large number of float yarns   cfy=[√Dy×My]: cover factor in the direction with a small number of float yarns   Dx: fineness (dtex) of weaving yarns in the direction with a large number of float yarns   Dy: fineness (dtex) of weaving yarns in the direction with a small number of float yarns   Mx: weaving density in the direction with a large number of float yarns (counts/2.54 cm)   My: weaving density in the direction with a small number of float yarns (counts/2.54 cm)   
     
     
         3 . The woven fabric for swimwear according to  claim 1 , wherein the covering coated threads are arranged in at least the direction with a large number of float yarns in the warp yarn or the weft yarn on the surface of the woven fabric. 
     
     
         4 . The woven fabric for swimwear according to  claim 1 , wherein the synthetic fiber filament is a synthetic fiber filament having a plurality of grooves in a surface in a fiber length direction. 
     
     
         5 . The woven fabric for swimwear according to  claim 4 , wherein the grooves of the synthetic fiber filament have a depth of 1.0 μm to 10.0 nm, inlets of the grooves have a width of 1.0 μm to 10.0 μm, and protrusions have a width of 10.0 μm or less. 
     
     
         6 . The woven fabric for swimwear according to  claim 4 , wherein in a transverse sectional shape of the synthetic fiber filament, a groove portion is a groove having a wide part and satisfying the following Formulae (IV) and (V):
   (SWmax)/(SWmin)≥1.3  (IV)
     0.15≤( SH/D )≤0.25  (V)
   (SWmin): width of the inlet of groove (μm)   (SWmax): width of the wide part of groove (μm)   D: fiber diameter (μm)   SH: groove depth (μm)   
     
     
         7 . The woven fabric for swimwear according to  claim 1 , wherein the synthetic fiber filament is a polyamide fiber. 
     
     
         8 . The woven fabric for swimwear according to  claim 1 , wherein at least a part of the weave structure is a stretch woven fabric of ½ weft twill weave. 
     
     
         9 . The woven fabric for swimwear according to  claim 1 , wherein at least a part of the weave structure is a stretch woven fabric of 5-harness satin weave. 
     
     
         10 . The woven fabric for swimwear according to  claim 1 , wherein the woven fabric for swimwear is subjected to water repellent finishing. 
     
     
         11 . Swimwear comprising the woven fabric for swimwear according to  claim 1 ,
 wherein the direction with a large number of float yarns is a body length (height) direction of the swimwear.   
     
     
         12 . The woven fabric for swimwear according to  claim 5 , wherein in a transverse sectional shape of the synthetic fiber filament, a groove portion is a groove having a wide part and satisfying the following Formulae (IV) and (V):
   (SWmax)/(SWmin)≥1.3  (IV)
     0.15≤( SH/D )≤0.25  (V)
   (SWmin): width of the inlet of groove (μm)   (SWmax): width of the wide part of groove (μm)   D: fiber diameter (μm)   SH: groove depth (μm)