Fabric sheet assemblies for delivering malodor control in wash liquor and methods for forming the same

Abstract

Fabric sheet assemblies for delivering malodor control in wash liquor during a laundering process and methods for forming such fabric sheet assemblies are provided. In one example, a fabric sheet assembly includes one or more substrate layers including a first substrate layer. The first substrate layer is configured to absorb and/or adsorb malodor compounds from the wash liquor. An odor controlling composition is carried by the one or more substrate layers and is configured to be released into the wash liquor.

What is claimed is: 
     
         1 . A fabric sheet assembly for delivering malodor control in wash liquor during a laundering process, the fabric sheet assembly comprising:
 one or more substrate layers including a first substrate layer configured to absorb and/or adsorb malodor compounds from the wash liquor; and   an odor controlling composition carried by the one or more substrate layers and configured to be released into the wash liquor.   
     
     
         2 . The fabric sheet assembly of  claim 1 , wherein the first substrate layer is a hydrophobic substrate layer. 
     
     
         3 . The fabric sheet assembly of  claim 1 , wherein the first substrate layer is an oleophilic substrate layer. 
     
     
         4 . The fabric sheet assembly of  claim 1 , wherein the first substrate layer comprises non-woven fibers. 
     
     
         5 . The fabric sheet assembly of  claim 1 , wherein the first substrate layer comprises polypropylene fibers. 
     
     
         6 . The fabric sheet assembly of  claim 1 , wherein the first substrate layer comprises micro-porous fibers. 
     
     
         7 . The fabric sheet assembly of  claim 1 , wherein the odor controlling composition comprises a fragrance, bacteria, an enzyme, zeolites, bleach, a bleach activator, metal, a metal oxide, or a combination thereof. 
     
     
         8 . The fabric sheet assembly of  claim 7 , wherein the odor controlling composition is arranged in a pattern on the one or more substrate layers. 
     
     
         9 . The fabric sheet assembly of  claim 1 , wherein the one or more substrate layers includes a backing substrate layer overlying the first substrate layer, and wherein the odor controlling composition is disposed on the backing substrate layer. 
     
     
         10 . The fabric sheet assembly of  claim 9 , wherein the backing substrate layer comprises spunbond non-woven polypropylene fibers. 
     
     
         11 . The fabric sheet assembly of  claim 9 , wherein the first substrate layer is a white color and the backing substrate layer has a relatively bright, conspicuous non-white color. 
     
     
         12 . The fabric sheet assembly of  claim 11 , wherein the relatively bright, conspicuous non-white color is yellow. 
     
     
         13 . The fabric sheet assembly of  claim 9 , wherein the one or more substrate layers includes a permeable substrate layer and the first substrate layer is a core substrate layer that is disposed between the backing substrate layer and the permeable substrate layer. 
     
     
         14 . The fabric sheet assembly of  claim 13 , wherein the permeable substrate layer comprises a polyester mesh. 
     
     
         15 . The fabric sheet assembly of  claim 13 , wherein the first substrate layer is a white color and the permeable substrate layer has a relatively bright, conspicuous non-white color. 
     
     
         16 . The fabric sheet assembly of  claim 15 , wherein the relatively bright, conspicuous non-white color is orange. 
     
     
         17 . The fabric sheet assembly of  claim 13 , wherein the backing substrate layer, the core substrate layer, and the permeable substrate layer are coupled together by a weld. 
     
     
         18 . The fabric sheet assembly of  claim 17 , wherein the fabric sheet assembly has a perimeter edge section and the weld is formed along the perimeter edge section. 
     
     
         19 . A fabric sheet assembly for delivering malodor control in wash liquor during a laundering process, the fabric sheet assembly comprising:
 a backing substrate layer, a permeable substrate layer, and a core substrate layer that is disposed between the backing substrate layer and the permeable substrate layer, wherein the core substrate layer comprises nonwoven, micro-porous polypropylene fibers; and   one or more odor controlling compositions disposed on the backing substrate layer and comprising one or more encapsulated fragrances.   
     
     
         20 . A method for forming a fabric sheet assembly for delivering malodor control in wash liquor during a laundering process, the method comprising the steps of:
 arranging a core substrate layer between a backing substrate layer and a permeable substrate layer, wherein the core substrate layer is configured to absorb and/or adsorb malodor compounds from the wash liquor;   coupling the backing substrate layer, the core substrate layer, and the permeable substrate layer together; and   depositing one or more odor controlling compositions on the backing substrate layer, wherein the one or more odor controlling compositions are configured to be released into the wash liquor.