Cleaning sheets comprising multi-denier fibers

Abstract

A cleaning sheet for removing particulate matter from a surface comprises a substrate comprising first fibers and second fibers having different denier to improve caliper of the cleaning sheet. The first and second fibers will typically have a denier of from about 0.5 to about 15, wherein the difference in denier between the first fibers and the second fibers is at least about 0.5. 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 laminate cleaning sheet for removing particulate matter from surfaces, said cleaning sheet comprising a substrate comprising a first web and a second web, said first web and said second web comprising carded staple fibers, and said sheet further comprising a third web disposed between said first web and said second web, said third web comprising spun bonded or thermal bonded fibers, wherein said first web and said third web have different deniers, said deniers having a difference of at least 0.5.  
   
   
       2 . The cleaning sheet of  claim 1  wherein said cleaning sheet has a caliper of from about 0.5 to about 2 mm.  
   
   
       3 . (canceled)  
   
   
       4 . The cleaning sheet of  claim 1  wherein said first web and said second web have a denier of from about 0.5 to about 15, and wherein the denier of said second web is at least 0.5 greater than the denier of said first web.  
   
   
       5 . The cleaning sheet of  claim 4  wherein said first web has a denier of from about 1 to about 2 and said second web has a denier of from about 2 to about 7, and wherein the denier of said second web is at least 0.7 greater than the denier of said first web.  
   
   
       6 - 8 . (canceled)  
   
   
       9 . The cleaning sheet of  claim 1  wherein said third web comprises polyester fibers and said second web comprises polypropylene fibers.  
   
   
       10 . (canceled)  
   
   
       11 . The cleaning sheet of  claim 10  wherein said ratio of polypropylene fibers to polyester fibers is from about 1:20 to about 10:1.  
   
   
       12 . The cleaning sheet of  claim 11  wherein said ratio of polypropylene fibers to polyester fibers is from about 1:10 to about 1:5.  
   
   
       13 . The cleaning sheet of  claim 1  wherein said cleaning sheet has a total aggregate basis weight of from about 20 to about 200 g/m 2 .  
   
   
       14 . The cleaning sheet of  claim 13  wherein said cleaning sheet has a total aggregate basis weight of from about 40 to about 100 g/m 2 .  
   
   
       15 . The cleaning sheet of  claim 14  wherein said cleaning sheet has a total aggregate basis weight of from about 45 to about 80 g/m 2 .  
   
   
       16 . The cleaning sheet of  claim 1  wherein said webs are hydroentangled to form said substrate.  
   
   
       17 . The cleaning sheet of  claim 16  wherein said cleaning sheet is free of a scrim material.  
   
   
       18 - 21 . (canceled)  
   
   
       22 . The cleaning sheet of claim  21  wherein said ratio of said first fibers to said second fibers is from about 10:1 to about 1:20.  
   
   
       23 . The cleaning sheet of  claim 22  wherein said ratio of said first fibers to said second fibers is from about 1:5 to about 1:10.  
   
   
       24 . The cleaning sheet of  claim 1  wherein said substrate is free of cationic surfactant.  
   
   
       25 . The cleaning sheet of  claim 1  wherein said cleaning sheet further comprises an additive material affixed to said substrate.  
   
   
       26 . The cleaning sheet of  claim 25  wherein said additive material is selected from the group consisting of wax, oil, and mixtures thereof.  
   
   
       27 . 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.    
   
   
       28 - 30 . (canceled)