Disposable absorbent article employing odor reduction layer containing metalphthalocyanine material

Abstract

The present invention is directed to a disposable absorbent article. The disposable absorbent article of the present invention includes a fluid storage layer disposed between the topsheet and backsheet and having a body-facing surface and a garment-facing surface opposing the body-facing surface. The fluid storage layer contains a superabsorbent material. The disposable absorbent article further includes an odor reduction layer disposed at either the body-facing surface side or the body-facing surface side of the fluid storage layer. The odor reduction layer contains a metalphthalocyanine material. The disposable absorbent article further includes an isolation means disposed between the superabsorbent material and the odor reduction layer for isolating the metalphthalocyanine material from contacting at least a part of the superabsorbent material.

1 . A disposable absorbent article, comprising: 
 a topsheet,    a backsheet combined with the topsheet,    a fluid storage layer disposed between the topsheet and backsheet and having a body-facing surface and a garment-facing surface opposing the body-facing surface, the fluid storage layer containing a superabsorbent material;    an odor reduction layer disposed at the body-facing surface side of the fluid storage layer, the odor reduction layer containing a metalphthalocyanine material; and    an isolation means disposed between the superabsorbent material and the odor reduction layer for isolating the metalphthalocyanine material from contacting at least a part of the superabsorbent material.    
     
     
         2 . The disposable absorbent article of  claim 1 , wherein the metalphthalocyanine material has the central metal selected from the transition elements.  
     
     
         3 . The disposable absorbent article of  claim 2 , wherein the central metal is Ni(II), Fe(III), Co(II), Mn(II), Cu, or Zn(II).  
     
     
         4 . The disposable absorbent article of  claim 1 , wherein the odor reduction layer includes at least about from 0.001% to about 10%, by weight, of the metalphthalocyanine material, and from about 90% to about 99.999% of a carrier means.  
     
     
         5 . The disposable absorbent article of  claim 1 , wherein the odor reduction layer disposed adjacent to the body-facing surface of the fluid storage layer.  
     
     
         6 . The disposable absorbent article of  claim 4 , wherein the carrier means is a nonwoven material.  
     
     
         7 . The disposable absorbent article of  claim 1 , wherein the isolation means is a tissue layer or a nonwoven layer disposed between the fluid storage layer and the odor reduction layer.  
     
     
         8 . The disposable absorbent article of  claim 1 , wherein the odor reduction layer further comprises a viscosity control agent.  
     
     
         9 . The disposable absorbent article of  claim 1 , wherein the topsheet includes the odor reduction layer.  
     
     
         10 . The disposable absorbent article of  claim 1 , further comprising a barrier cuff having a proximal edge and a distal edge, the proximal edge being joined to the topsheet and the distal edge being away from the body-facing surface of the topsheet, 
 wherein the barrier cuff includes the odor reduction layer.    
     
     
         11 . The disposable absorbent article of  claim 1 , further comprising a waistband which includes the odor reduction layer.  
     
     
         12 . The disposable absorbent article of  claim 1 , further comprising a side panel which includes the odor reduction layer.  
     
     
         13 . A disposable absorbent article, comprising: 
 a topsheet,    a backsheet combined with the topsheet,    a fluid storage layer disposed between the topsheet and backsheet and having a body-facing surface and a garment-facing surface opposing the body-facing surface, the fluid storage layer containing a superabsorbent material;    an odor reduction layer disposed at the body-facing surface side of the fluid storage layer    which envelops at least a part of the fluid storage layer, the odor reduction layer containing a metalphthalocyanine material; and    an isolation means disposed between the superabsorbent material and the odor reduction layer for isolating the metalphthalocyanine material from contacting at least a part of the superabsorbent material.