Wet wipes and methods for making same

Abstract

Wet wipes formed from a fibrous structure and a liquid composition that exhibit novel properties are provided.

1 . A wet wipe comprising a fibrous structure comprising a liquid composition, wherein the liquid composition after extraction from the fibrous structure exhibits a pH of less than 4.55 as measured according to the pH Test Method described herein. 
     
     
         2 . The wet wipe according to  claim 1  wherein the fibrous structure comprises pulp fibers. 
     
     
         3 . The wet wipe according to  claim 2  wherein the fibrous structure comprises greater than 85% by weight on dry basis of pulp fibers. 
     
     
         4 . The wet wipe according to  claim 3  wherein the fibrous structure comprises about 100% by weight on a dry basis of pulp fibers. 
     
     
         5 . The wet wipe according to  claim 2  wherein the pulp fibers comprise fibers selected from the group consisting of: softwood fibers, hardwood fibers, and mixtures thereof. 
     
     
         6 . The wet wipe according to  claim 5  wherein the pulp fibers comprise 100% by weight on a dry basis of softwood fibers. 
     
     
         7 . The wet wipe according to  claim 5  wherein the pulp fibers comprise greater than 50% by weight on a dry basis of softwood fibers and less than 50% by weight on a dry basis of hardwood fibers. 
     
     
         8 . The wet wipe according to  claim 5  wherein the softwood fibers are selected from the group consisting of: Northern Softwood Kraft fibers, Southern Softwood Kraft fibers, and mixtures thereof. 
     
     
         9 . The wet wipe according to  claim 5  wherein the hardwood fibers comprise tropical hardwood fibers. 
     
     
         10 . The wet wipe according to  claim 5  wherein the hardwood fibers are selected from the group consisting of: Acacia, Eucalyptus, Maple, Oak, Aspen, Birch, Cottonwood, Alder, Ash, Cherry, Elm, Hickory, Poplar, Gum, Walnut, Locust, Sycamore, Beech, Catalpa, Sassafras, Gmelina, Albizia, Anthocephalus, and Magnolia fibers, and mixtures thereof. 
     
     
         11 . The wet wipe according to  claim 1  wherein the fibrous structure is a wet-laid fibrous structure. 
     
     
         12 . A wet wipe comprising a fibrous structure comprising a liquid composition, wherein the fibrous structure comprises a temporary wet strength agent. 
     
     
         13 . The wet wipe according to  claim 12  wherein the fibrous structure comprises pulp fibers. 
     
     
         14 . The wet wipe according to  claim 12  wherein the fibrous structure is void of any polymeric binder. 
     
     
         15 . The wet wipe according to  claim 12  wherein the fibrous structure is a wet-laid fibrous structure. 
     
     
         16 . A wet wipe comprising a fibrous structure comprising a surface comprising a surface pattern imparted to the fibrous structure during the fibrous structure making process and a liquid composition. 
     
     
         17 . The wet wipe according to  claim 16  wherein the fibrous structure is a wet-laid fibrous structure. 
     
     
         18 . The wet wipe according to  claim 16  wherein the surface pattern comprises regions of different densities. 
     
     
         19 . The wet wipe according to  claim 18  wherein the surface pattern comprises discrete, high density regions and a continuous or substantially continuous network of a low density region surrounding the discrete, high density regions. 
     
     
         20 . The wet wipe according to  claim 16  wherein the surface pattern comprises a non-random, repeating pattern.