Waterproof moisture-permeable underwear and waterproof moisture-permeable liner

Abstract

Disclosed is a waterproof moisture-permeable underwear by which the scope of choices for a material can be widened, and the waterproofness in junction areas can be improved so that staining of an outer garment with urine or menstrual blood leaked from undergarment can be surely prevented. A waterproof moisture-permeable underwear to be worn between undergarment and the outer garment worn on the lower body is constructed by joining a plurality of two-layered fabric pieces (A), each comprising a base fabric (B) disposed facing the undergarment and a waterproof moisture-permeable membrane (C) laminated on a surface of the base fabric (B) facing the outer garment, in junction areas; wherein a material superior to the membrane (C) in texture is selected for the base fabric (B); a material superior to the base fabric (B) in welding property is selected for the membrane (C); and the junction areas (21A-21F) are formed by welding.

1 . A waterproof moisture-permeable underwear to be worn between undergarment and an outer garment worn on the lower body, characterized in that:
 the waterproof moisture-permeable underwear is constructed by joining, in junction areas, a plurality of two-layered fabric pieces, each comprising,
 a base fabric disposed such that it faces the undergarment, and 
 a membrane laminated such that it faces the outer garment and having waterproof moisture-permeability, 
   wherein a material superior to the membrane in texture is selected for the base fabric, and   a material superior to the base fabric in welding property is selected for the membrane, and   at least one of the junction areas is formed by welding.   
     
     
         2 . The waterproof moisture-permeable underwear according to  claim 1  characterized in that the junction area formed by welding is formed by welding in such a condition that respective junction allowances of the fabric pieces being adjacent to each other are folded inward and the membranes in the respective junction allowances are brought into contact with each other. 
     
     
         3 . The waterproof moisture-permeable underwear according to  claim 1  characterized in that the junction area formed by welding is formed by welding in such a condition that respective junction allowances of the fabric pieces being adjacent to each other are extended outward and the base fabrics in the respective junction allowances are brought into contact with each other. 
     
     
         4 . The waterproof moisture-permeable underwear according to  claim 1  characterized in that the junction area formed by welding is formed by welding in such a condition that one junction allowance of respective junction allowances of the fabric pieces being adjacent to each other is overlaid on the other junction allowance such that the membrane in the one junction allowance is brought into contact with the base fabric in the other junction allowance. 
     
     
         5 . The waterproof moisture-permeable underwear according to  claim 1  characterized in that the junction area formed by welding is formed by welding in such a condition that respective junction allowances of the fabric pieces being adjacent to each other are folded inward and the membranes in the respective junction allowances are brought into contact with each other, or in such a condition that respective junction allowances of the fabric pieces being adjacent to each other are extended outward and the base fabrics in the respective junction allowances are brought into contact with each other,
 wherein when the fabric pieces being joined in the junction area are joined in another junction area that intersects with these junction areas in such a condition that one of the junction areas and the other junction area continuously converge each other, 
 the one junction area is joined to the another junction area with its edge portion being folded, and the other junction area is joined to the another junction area with its edge portion being folded in a direction opposite to that of the one junction area. 
 
     
     
         6 . The waterproof moisture-permeable underwear according to  claim 1  characterized in that the junction area formed by welding is formed by aligning respective end edges of the fabric pieces being adjacent to each other, and welding a band of sealing material on the end edges. 
     
     
         7 . The waterproof moisture-permeable underwear according to  claim 6  characterized in that the sealing material is formed of a cloth same as the fabric piece. 
     
     
         8 . The waterproof moisture-permeable underwear according to  claim 6  characterized in that the sealing material is formed of a cloth to which hot-melt is applied. 
     
     
         9 . The waterproof moisture-permeable underwear according to  claim 1  characterized in that the junction area of the plurality of fabric pieces to be welded includes a crotch line and a crotch portion. 
     
     
         10 . The waterproof moisture-permeable underwear according to  claim 1  characterized in that the moisture-permeability of the membrane increases as temperature rises. 
     
     
         11 . The waterproof moisture-permeable underwear according to  claim 1  characterized in that the fabric piece has a degree of stretch in one direction and a different degree of stretch in another direction orthogonal to the one direction, and the fabric piece is disposed such that a direction having a higher degree of stretch is horizontal. 
     
     
         12 . A waterproof moisture-permeable liner attached to an inner portion of an outer garment to be worn outside of undergarment worn on the lower body, characterized in that:
 the waterproof moisture-permeable liner is constructed by joining, in junction areas, a plurality of two-layered fabric pieces, each comprising,
 a base fabric disposed such that it faces the undergarment, and 
 a membrane laminated such that it faces the outer garment and having waterproof moisture-permeability, 
   wherein a material superior to the membrane in texture is selected for the base fabric, and   a material superior to the base fabric in welding property is selected for the membrane, and   at least one of the junction areas is formed by welding.   
     
     
         13 . The waterproof moisture-permeable liner according to  claim 12  is characterized in that the junction area formed by welding is formed by welding in such a condition that respective junction allowances of the fabric pieces being adjacent to each other are folded inward and the membranes in the respective junction allowances are brought into contact with each other. 
     
     
         14 . The waterproof moisture-permeable liner according to  claim 12  is characterized in that the junction area formed by welding is formed by welding in such a condition that respective junction allowances of the fabric pieces being adjacent to each other are extended outward and the base fabrics in the respective junction allowances are brought into contact with each other. 
     
     
         15 . The waterproof moisture-permeable liner according to  claim 12  is characterized in that the junction area formed by welding is formed by welding in such a condition that one junction allowance of respective junction allowances of the fabric pieces being adjacent to each other is overlaid on the other junction allowance such that the membrane in the one junction allowance is brought into contact with the base fabric in the other junction allowance. 
     
     
         16 . The waterproof moisture-permeable liner according to  claim 12  is characterized in that the junction area formed by welding is formed by welding in such a condition that respective junction allowances of the fabric pieces being adjacent to each other are folded inward and the membranes in the respective junction allowances are brought into contact with each other, or in such a condition that respective junction allowances of the fabric pieces being adjacent to each other are extended outward and the base fabrics in the respective junction allowances are brought into contact with each other,
 wherein when the fabric pieces being joined in the junction area are joined in another junction area that intersects with these junction areas in such a condition that one of the junction areas and the other junction area continuously converge each other, 
 the one junction area is joined to the another junction area with its edge portion being folded, and the other junction area is joined to the another junction area with its edge portion being folded in a direction opposite to that of the one junction area. 
 
     
     
         17 . The waterproof moisture-permeable liner according to  claim 12  is characterized in that the junction area formed by welding is formed by aligning respective end edges of fabric pieces being adjacent to each other and welding a band of sealing material on the end edges. 
     
     
         18 . The waterproof moisture-permeable liner according to  claim 17  characterized in that the sealing material is formed of a cloth same as the fabric piece. 
     
     
         19 . The waterproof moisture-permeable liner according to  claim 17  characterized in that the sealing material is formed of a cloth to which hot-melt is applied. 
     
     
         20 . The waterproof moisture-permeable liner according to  claim 12  is characterized in that the junction area of the plurality of fabric pieces to be welded includes a crotch line and a crotch portion. 
     
     
         21 . The waterproof moisture-permeable liner according to  claim 12  is characterized in that the moisture-permeability of the membrane increases as temperature rises. 
     
     
         22 . The waterproof moisture-permeable liner according to  claim 12  is characterized in that the fabric piece has a degree of stretch in one direction and a different degree of stretch in another direction orthogonal to the one direction, and the fabric piece is disposed such that the direction having a higher degree of stretch is horizontal.