Stretchable laminated sheet

Abstract

A stretchable laminated sheet with hydrophilic properties, which particularly has an excellent feeling and stability in wearing and is capable of efficiently enhancing the effect and efficacy brought about by a liquid component on a skin or other object, when the stretchable laminated sheet is impregnated with the liquid component and wet and then used on the skin or other object. A stretchable laminated sheet, which is obtained by partially thermocompression-bonding and laminating a hydrophilic short fiber layer extensible in at least one direction and an microfiber layer having a elastomer long fiber of a fiber diameter of 15 μm or less at 50% or more by weight, wherein discontinuous and regular concave and convex parts caused by the partial thermocompression bonding are formed on a surface of the hydrophilic short fiber layer that is exposed on one surface of the stretchable laminated sheet, the total area of the concave parts is in a range of 3 to 40% of the area of the surface of the hydrophilic short fiber layer, and at least the elastomer long fiber of the microfiber layer is softened and consequently joined to a fiber constituting the hydrophilic short fiber layer in a sheet thickness direction of a section where the concave parts exist, whereby the hydrophilic short fiber layer and the microfiber layer are integrated with each other.

1 . A stretchable laminated sheet, which is obtained by partially thermocompression-bonding to laminate a hydrophilic short fiber layer extensible in at least one direction and a microfiber layer having an elastomer long fiber of a fiber diameter of 15 μm or less at 50% or more by weight based on the microfiber layer, wherein discontinuous and regular concave and convex parts caused by the partial thermocompression bonding are formed on a surface of the hydrophilic short fiber layer that is exposed on one surface of the stretchable laminated sheet, the total area of the concave parts is in a range of 3 to 40% of the area of the surface of the hydrophilic short fiber layer, and at least the elastomer long fiber of the microfiber layer is softened and consequently joined to a fiber constituting the hydrophilic short fiber layer in a sheet thickness direction of a section where the concave parts exist, whereby the hydrophilic short fiber layer and the microfiber layer are integrated with each other. 
     
     
         2 . The stretchable laminated sheet according to  claim 1 , wherein a surface of the microfiber layer that is exposed on the other surface of the stretchable laminated sheet is smooth. 
     
     
         3 . The stretchable laminated sheet according to  claim 1 , wherein when 100 parts by weight of the stretchable laminated sheet is impregnated with 100 to 1500 parts by weight of a liquid component an elongation recovery ratio is in a range of 30 to 100% after the stretchable laminated sheet is extended by 30% in the at least one direction. 
     
     
         4 . The stretchable laminated sheet according to  claim 1 , wherein the hydrophilic short fiber layer has at least 30% by weight of a short fiber comprising cotton, rayon, cuprammonium, pulp, or two or more of them. 
     
     
         5 . The stretchable laminated sheet according to  claim 1 , wherein the hydrophilic short fiber layer is a spunlace non-woven fabric or a wetlaid web. 
     
     
         6 . The stretchable laminated sheet according to  claim 1 , wherein the microfiber layer is a fiber layer obtained by randomly accumulating long fibers produced by a melt blow method. 
     
     
         7 . A stretchable laminated sheet, wherein 100 parts by weight of the stretchable laminated sheet described in  claim 1  is impregnated with 100 to 1500 parts by weight of drug solution or cosmetics. 
     
     
         8 . A product, which is obtained by using the stretchable laminated sheet described in  claim 1 .