Cleaning sheets comprising a fibrous web of carded staple fibers hydroentangled with a reinforcing fibrous web

Abstract

A cleaning sheet for removing particulate matter from a surface comprises a substrate comprising a first fibrous web comprising carded staple fibers and a reinforcing fibrous web comprising fibers selected from the group consisting of thermal bonded fibers, meltblown fibers, hydroentangled fibers, and spunbonded fibers. The first fibrous web is hydroentangled with the reinforcing fibrous web to form the substrate. The resulting cleaning sheet has a CD elongation of less than about 100% at a load of 500 grams. The cleaning sheet is preferably free of a scrim material and can further comprise an optional additive material. A method of removing particulate matter from a surface comprises contacting the surface with a cleaning sheet of the present invention.

1 . A cleaning sheet for removing particulate matter from a surface, said cleaning sheet comprising a substrate comprising a first fibrous web comprising carded staple fibers and a reinforcing fibrous web comprising fibers selected from the group consisting of thermal bonded fibers, meltblown fibers, hydroentangled fibers, and spunbonded fibers; wherein said first fibrous web is hydroentangled with said reinforcing fibrous web to form said substrate; and wherein said cleaning sheet has a CD elongation of less than about 100% at a load of 500 grams.  
   
   
       2 . The cleaning sheet of  claim 1  wherein said cleaning sheet has a CD elongation of less than about 70% at a load of 500 grams.  
   
   
       3 . The cleaning sheet of  claim 1  wherein said cleaning sheet has a CD elongation of from about 10% to about 100% at a load of 500 grams.  
   
   
       4 . The cleaning sheet of  claim 1  wherein said carded staple fibers are polyester fibers and said reinforcing fibrous web comprises spunbonded fibers.  
   
   
       5 . The cleaning sheet of  claim 4  wherein said spunbonded fibers are selected from the group consisting of polyester fibers, polypropylene fibers, polyethylene fibers, nylon fibers, rayon fibers, and mixtures thereof.  
   
   
       6 . The cleaning sheet of  claim 5  wherein said spunbonded fibers are polypropylene fibers.  
   
   
       7 . The cleaning sheet of  claim 1  wherein said reinforcing fibrous web comprises thermal bonded fibers.  
   
   
       8 . The cleaning sheet of  claim 7  wherein said thermal bonded fibers are selected from the group consisting of polyester fibers, polypropylene fibers, polyethylene fibers, nylon fibers, rayon fibers, and mixtures thereof.  
   
   
       9 . The cleaning sheet of  claim 8  wherein said thermal bonded fibers are polypropylene fibers.  
   
   
       10 . The cleaning sheet of  claim 1  wherein said cleaning sheet has a total aggregate basis weight of from about 20 to about 200 g/m2.  
   
   
       11 . The cleaning sheet of  claim 10  wherein said total aggregate basis weight is from about 40 to about 100 g/m2.  
   
   
       12 . The cleaning sheet of  claim 11  wherein said total aggregate basis weight is from about 45 to about 80 g/m2.  
   
   
       13 . The cleaning sheet of  claim 10  wherein said reinforcing fibrous web has a basis weight of from about 5% to about 70% of said total aggregate basis weight.  
   
   
       14 . The cleaning sheet of  claim 13  wherein said reinforcing fibrous web has a basis weight of from about 10% to about 50% of said total aggregate basis weight.  
   
   
       15 . The cleaning sheet of  claim 14  wherein said reinforcing fibrous web has a basis weight of from about 15% to about 30% of said total aggregate basis weight.  
   
   
       16 . The cleaning sheet of  claim 1  wherein said reinforcing fibrous web comprises fibers having a denier of from about 0.5 to about 12.  
   
   
       17 . The cleaning sheet of  claim 16  wherein said reinforcing fibrous web comprises fibers having a denier of from about 1 to about 6.  
   
   
       18 . The cleaning sheet of  claim 17  wherein said reinforcing fibrous web comprises fibers having a denier of from about 2 to about 4.  
   
   
       19 . The cleaning sheet of  claim 1  wherein said first fibrous web comprises first fibers having a denier of from about 0.5 to about 12 and said reinforcing fibrous web comprises second fibers having a denier of from about 0.5 to about 12; wherein the denier of said second fibers is at least 0.5 greater than the denier of said fibers of said first fibers.  
   
   
       20 . The cleaning sheet of  claim 19  wherein said cleaning sheet has a caliper of from about 0.3 to about 3 mm.  
   
   
       21 . The cleaning sheet of  claim 1  wherein said cleaning sheet is free of a scrim material.  
   
   
       22 . The cleaning sheet of  claim 1  wherein said cleaning sheet further comprises an additive material affixed to said substrate.  
   
   
       23 . The cleaning sheet of  claim 22  wherein said additive material is selected from the group consisting of wax, oil, and mixtures thereof.  
   
   
       24 . A cleaning implement for removing particulate matter from a surface, said cleaning implement comprising: 
 (a) a handle;    (b) a mop head connect to said handle via a joint; and    (c) a cleaning sheet according to  claim 1 , wherein said cleaning sheet is removably attached to said mop head.    
   
   
       25 . A cleaning implement for removing particulate matter from a surface, said cleaning implement comprising: 
 (a) a handle;    (b) a mop head connect to said handle via a joint; and    (c) a cleaning sheet according to  claim 21 , wherein said cleaning sheet is removably attached to said mop head.    
   
   
       26 . A method of removing particulate matter from a surface, said method comprising the step of contacting said surface with a cleaning sheet according to  claim 1 .  
   
   
       27 . A method of removing particulate matter from a surface, said method comprising the step of contacting said surface with a cleaning sheet according to  claim 21.