Pre-Moistened Fibrous Structures

Abstract

Fibrous structures containing filaments and optionally, solid additives, wherein the pre-moistened fibrous structures exhibit wet mikroCAD values that are superior to known pre-moistened fibrous structures as measured according to the Wet MikroCAD Test Method described herein and methods for making same are provided.

What is claimed is: 
     
         1 . A pre-moistened fibrous structure comprising at least one surface comprising a plurality of deformations such that the surface exhibits an average absolute wet surface height value (Sa) of greater than 110 μm as measured according to the Wet MikroCAD Test Method. 
     
     
         2 . The fibrous structure according to  claim 1  wherein the filaments are present in the fibrous structure at a level of less than 90% by weight of the fibrous structure on a dry basis. 
     
     
         3 . The fibrous structure according to  claim 1  wherein the solid additives are present in the fibrous structure at a level of greater than 10% by weight of the fibrous structure on a dry basis. 
     
     
         4 . The fibrous structure according to  claim 1  wherein the filaments and solid additives are present in the fibrous structure at a weight ratio of filaments to solid additives of greater than 0 but less than 1. 
     
     
         5 . The fibrous structure according to  claim 1  wherein the filaments and solid additives are commingled together. 
     
     
         6 . The fibrous structure according to  claim 1  wherein at least one of the filaments comprises a thermoplastic polymer. 
     
     
         7 . The fibrous structure according to  claim 1  wherein the solid additives comprise fibers. 
     
     
         8 . The fibrous structure according to  claim 1  wherein at least one common micro-CT intensive property is selected from the group consisting of: micro-CT basis weight, micro-CT thickness, micro-CT density, and combinations thereof as measured according to the Micro-CT Test Method. 
     
     
         9 . A wet wipe comprising a pre-moistened fibrous structure according to  claim 1 . 
     
     
         10 . A pre-moistened fibrous structure comprising at least one surface comprising a plurality of deformations such that the surface exhibits a root mean square average wet surface height value (Sq) of greater than 145 μm as measured according to the Wet MikroCAD Test Method. 
     
     
         11 . The fibrous structure according to  claim 10  wherein the filaments are present in the fibrous structure at a level of less than 90% by weight of the fibrous structure on a dry basis. 
     
     
         12 . The fibrous structure according to  claim 10  wherein the solid additives are present in the fibrous structure at a level of greater than 10% by weight of the fibrous structure on a dry basis. 
     
     
         13 . The fibrous structure according to  claim 10  wherein the filaments and solid additives are present in the fibrous structure at a weight ratio of filaments to solid additives of greater than 0 but less than 1. 
     
     
         14 . The fibrous structure according to  claim 10  wherein the filaments and solid additives are commingled together. 
     
     
         15 . The fibrous structure according to  claim 10  wherein at least one of the filaments comprises a thermoplastic polymer. 
     
     
         16 . The fibrous structure according to  claim 10  wherein the solid additives comprise fibers. 
     
     
         17 . The fibrous structure according to  claim 10  wherein at least one common micro-CT intensive property is selected from the group consisting of: micro-CT basis weight, micro-CT thickness, micro-CT density, and combinations thereof as measured according to the Micro-CT Test Method. 
     
     
         18 . A wet wipe comprising a pre-moistened fibrous structure according to  claim 10 . 
     
     
         19 . A method for making a pre-moistened fibrous structure, the method comprising the steps of:
 a. imparting deformations to at least one surface of a fibrous structure; and   b. applying a liquid composition to the fibrous structure to form a pre-moistened fibrous structure having a surface that exhibits one or more of the following:
 i. an average absolute wet surface height value (Sa) of greater than 110 μm as measured according to the Wet MikroCAD Test Method; and 
 ii. a root mean square average wet surface height value (Sq) of greater than 145 μm as measured according to the Wet MikroCAD Test Method. 
   
     
     
         20 . The method according to  claim 19  wherein the pre-moistened fibrous structure is a wet wipe.