Absorber product

Abstract

In an absorbent product such as a diaper comprising a back sheet, an absorber, and a skin contact sheet, the skin contact sheet is disposed on the absorber as the uppermost layer which comes in contact with the skin of the wearer and has openings which allow the passage of excretions. The absorber and the skin contact sheet are joined only at both ends of the absorbent product in the longitudinal directions.

1 . An absorbent product comprising a portion which is constituted of a liquid-impervious back sheet and an absorber superposed upon the back sheet and which extends to a back body portion positioned on a back side from a front body portion positioned on a front side of a wearer in a wearing state, 
 wherein a skin contact sheet as an uppermost layer in contact with a wearer's skin is disposed on the absorbent product,    the skin contact sheet includes at least one opening to allow passage of excretions from the wearer, and    the absorbent product and skin contact sheet are joined to each other in opposite ends in a longitudinal direction of the absorbent product, and are kept in a non-contact state so that a gap can be formed between the absorbent product and skin contact sheet in portions other than the opposite ends.    
     
     
         2 . The absorbent product according to  claim 1 , further comprising a liquid-pervious top sheet with which the absorber is covered and which is disposed between the absorber and skin contact sheet and which is in a contact joined state with the skin contact sheet in the opposite ends of the longitudinal direction of the absorbent product and is kept in a non-contact state so that the gap can be formed between the top sheet and skin contact sheet in the portions other than the opposite ends.  
     
     
         3 . The absorbent product according to  claim 1  or  2 , wherein the skin contact sheet is disposed in a portion extending to a back body region from at least a crotch region of the absorbent product in the wearing state of the absorbent product.  
     
     
         4 . The absorbent product according to  claim 1  or  2 , wherein the skin contact sheet is disposed in a portion extending to a back body region from a front body region of the absorbent product in the wearing state of the absorbent product, and includes a cutout portion in a middle portion of the front body region in a width direction.  
     
     
         5 . The absorbent product according to any one of  claims 1  to  4 , wherein the skin contact sheet is a mesh state material.  
     
     
         6 . The absorbent product according to any one of  claims 1  to  5 , wherein the skin contact sheet is constituted of a foamed state resin.  
     
     
         7 . The absorbent product according to any one of  claims 1  to  6 , wherein the skin contact sheet is constituted of an elastic member.  
     
     
         8 . The absorbent product according to any one of  claims 1  to  7 , wherein the absorber is disposed in at least the front body region.  
     
     
         9 . The absorbent product according to any one of  claims 1  to  8 , further comprising an elastic member joined to the skin contact sheet in an extended state so as to surround the opening formed in the skin contact sheet.  
     
     
         10 . The absorbent product according to any one of  claims 1  to  8 , further comprising at least four elastic members which are joined to the skin contact sheet in an extended state so as to surround the opening formed in the skin contact sheet and which are disposed to extend to the back body region from the front body region of the absorbent product and to pass in the vicinity of the opening.  
     
     
         11 . The absorbent product according to any one of  claims 1  to  8 , further comprising elastic members which are arranged in a crossed form in the skin contact sheet so as to surround the opening of the skin contact sheet and to intersect with each other.  
     
     
         12 . The absorbent product according to any one of  claims 1  to  8 , further comprising 
 at least two elastic members extending to reach one side edge of the back body region from one side edge of the front body region of the absorbent product through opposite side edges of the opening of the skin contact sheet, and  
 at least two elastic members extending to reach the other side edge of the back body region from the other side edge of the front body region of the absorbent product through the opposite side edges of the opening of the skin contact sheet.  
 
     
     
         13 . The absorbent product according to any one of  claims 1  to  8 , further comprising 
 at least two elastic members extending from one side edge of the front body region of the absorbent product to the other side edge of the front body region through opposite side edges of the opening and crotch region, and  
 at least two elastic members extending from one side edge of the back body region of the absorbent product to the other side edge of the back body region through the opposite side edges of the opening and crotch region.  
 
     
     
         14 . The absorbent product according to any one of  claims 10  to  13 , wherein the elastic members are arranged in such a manner that a tensile force functions uniformly in mutual approach directions of edges of the opening disposed opposite to each other.  
     
     
         15 . The absorbent product according to any one of  claims 1  to  14 , wherein a cutout portion is formed in a middle portion of the skin contact sheet in a width direction in a portion corresponding to the front body region.  
     
     
         16 . The absorbent product according to  claim 15 , wherein the skin contact sheet includes a liquid-impervious portion.  
     
     
         17 . The absorbent product according to any one of  claims 1  to  15 , wherein a second absorber is disposed in the skin contact sheet in a portion corresponding to the front body region.  
     
     
         18 . The absorbent product according to any one of  claims 1  to  17 , 
 wherein the back sheet forms a pair of longitudinal side flaps with which a wearer's waist part is covered,  
 opposite edges of the respective side flaps are joined to or overlapped with each other to form a waist surrounding opening and a pair of leg surrounding openings, and  
 the absorbent product further comprises a stretchable band member with which the wearer's waist is surrounded, the skin contact sheet is connected to the stretchable band member at the ends of the skin contact sheet in the longitudinal direction, and thereby the skin contact sheet can elastically be displaced with respect to a wearer's body in an appropriate range.  
 
     
     
         19 . The absorbent product according to  claim 18 , 
 wherein the stretchable band member is constituted of front and back end flaps which have stretchable properties,    the skin contact sheet is joined to the respective end flaps at opposite ends of the sheet in the longitudinal direction, and    a dimension of the skin contact sheet between the end flaps in the longitudinal direction is set to be shorter than an extension dimension between the end flaps.    
     
     
         20 . The absorbent product according to  claim 18  or  19 , wherein the opening of the skin contact sheet is a cutout portion.  
     
     
         21 . The absorbent product according to  claim 19  or  20 , wherein the skin contact sheet includes a cutout portion formed in the middle portion of the front body region in the width direction, and an opening formed in the crotch region.  
     
     
         22 . The absorbent product according to any one of  claims 19  to  21 , wherein the end flap is formed by turning back the back sheet on an absorber side.  
     
     
         23 . The absorbent product according to  claim 22 , wherein the end flap includes a stretchable elastic member which is disposed along the waist surrounding opening and which has a length to obtain an extended state in the wearing state.  
     
     
         24 . The absorbent product according to any one of  claims 18  to  23 , 
 wherein the stretchable band member includes a pair of front and back slits formed along the waist surrounding opening, and elastic members attached to positions disposed opposite to each other via each slit so as to obtain an extended state in the wearing state,  
 each of the opposite ends of the skin contact sheet in the longitudinal direction is joined to the stretchable elastic band member in the vicinity of each of the pair of slits, and  
 a dimension of the skin contact sheet positioned between the pair of slits in the longitudinal direction is set to be shorter than an extension dimension between the pair of slits.  
 
     
     
         25 . The absorbent product according to any one of  claims 18  to  24 , wherein the opening of the skin contact sheet is a cutout portion.  
     
     
         26 . The absorbent product according to any one of  claims 18  to  25 , wherein each of opposite ends of the skin contact sheet in the longitudinal direction is joined to the elastic band member in the vicinity of each of the pair of slits, 
 a cutout portion is formed in the middle portion of the front body region of the skin contact sheet in the width direction, an opening is formed in the crotch region, and  
 a longitudinal dimension of the skin contact sheet positioned between the pair of slits is set to be shorter than an extension dimension between the pair of slits.  
 
     
     
         27 . The absorbent product according to any one of  claims 18  to  26 , wherein at least one of opposite ends of the skin contact sheet in the longitudinal direction is joined to the elastic band member on a side of the slit close to an opening end of the waist surrounding opening, or on a side close to the crotch region from the slit.  
     
     
         28 . The absorbent product according to any one of  claims 18  to  27 , wherein a stretchable elastic member which has a length sufficient to obtain an elongated state in a wearing state is attached to a position adjacent to the absorber so as to extend along the waist surrounding opening in at least a part of the front and back body regions of the back sheet.  
     
     
         29 . The absorbent product according to any one of  claims 18  to  28 , wherein a second absorber is attached to the skin contact sheet.  
     
     
         30 . The absorbent product according to  claim 29 , wherein the skin contact sheet is coated with the second absorber, and the absorber includes a mixture of a super absorbent polymer (SAP) and micro-fibrillated cellulose.