US2003106568A1PendingUtilityA1

Cleaning sheet, system and apparatus

40
Assignee: KIMBERLY CLARK COPriority: Dec 12, 2001Filed: Dec 12, 2001Published: Jun 12, 2003
Est. expiryDec 12, 2021(expired)· nominal 20-yr term from priority
Inventors:Laura E. KeckBilly Dean Arnold
A47L 13/16D01D 5/253A47L 13/20D04H 3/16D01F 8/06
40
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

The present invention provides a cleaning sheet that has an enhanced dirt, dust and/or debris pick-up and retention characteristics, which can be used in dry applications and/or wet applications. The cleaning sheet is prepared from a nonwoven web containing plurality of multicomponent multilobal filaments, wherein the multicomponent multilobal filaments have a plurality of raised lobal regions separated by depressed regions. The cleaning sheet also has voids between the plurality of multicomponent multilobal filaments which allow for enhanced dirt, dust and/or debris pick-up and retention. The nonwoven web can be a single layer or a layer of a multilayer laminate. The nonwoven web is optionally electret treated. Also disclosed is a cleaning implement and cleaning kit containing the cleaning sheet.

Claims

exact text as granted — not AI-modified
1 . A cleaning sheet having an ability to pick-up and retain dirt, dust and/or other debris, said cleaning sheet comprising 
 a nonwoven web comprising a plurality of thermoplastic multicomponent, multilobal filaments, wherein each of the filaments comprises a plurality of raised lobal regions separated by depressed regions and the nonwoven web comprises voids between the plurality of multilobal filaments which allow for dirt, dust and/or other debris pick-up and retention within the nonwoven web.    
     
     
         2 . The cleaning sheet according to  claim 1 , wherein each multicomponent, multilobal filament comprises between 2 and 10 lobes.  
     
     
         3 . The cleaning sheet according to  claim 2 , wherein each multicomponent, multilobal filament comprises between 2 and 5 lobes.  
     
     
         4 . The cleaning sheet according to  claim 1 , wherein the thermoplastic multicomponent, multilobal filaments comprise a thermoplastic polymer selected from the group consisting of polyolefins, polyesters, polyamides, polycarbonates, polyurethanes, polyvinylchloride, polytetrafluoroethylene, polystyrene, polylactic acid and blends thereof.  
     
     
         5 . The cleaning sheet according to  claim 1 , wherein the multicomponent, multilobal filaments are bicomponent filaments comprising a first polymer component and a second polymer component.  
     
     
         6 . The cleaning sheet according to  claim 5 , wherein the first polymer component comprises polyethylene and the second polymer component comprises polypropylene.  
     
     
         7 . The cleaning sheet according to  claim 6 , wherein the first polymer component and the second polymer component are arranged in a side-by-side configuration.  
     
     
         8 . The cleaning sheet according to  claim 1 , wherein the multicomponent, multilobal filaments are crimped.  
     
     
         9 . The cleaning sheet according to  claim 1 , wherein the bulk density of the sheet is in the range of about 0.015 g/cm 3  to about 0.075 g/cm 3 .  
     
     
         10 . The cleaning sheet according to  claim 1 , wherein the basis weight of the sheet is between about 0.25 osy and about 25 osy.  
     
     
         11 . The cleaning sheet according to  claim 10 , wherein the basis weight of the sheet is between about 0.5 osy and about 10 osy.  
     
     
         12 . The cleaning sheet according to  claim 11 , wherein the basis weight of the sheet is between about 1.0 osy and about 5.0 osy.  
     
     
         13 . The cleaning sheet according to  claim 1 , wherein the nonwoven web further comprises a plurality of pulp fibers intermingled with the plurality of multicomponent, multilobal filaments.  
     
     
         14 . The cleaning sheet according to  claim 1 , wherein the nonwoven web further comprises a plurality of monolobal filaments intermingled with the plurality of the multicomponent, multilobal filaments.  
     
     
         15 . The cleaning sheet according to  claim 14 , wherein the monolobal filaments comprise a thermoplastic polymer selected from the group consisting of polyolefins, polyesters, polyamides, polycarbonates, polyurethanes, polyvinylchloride, polytetrafluoroethylene, polystyrene, polylactic acid and blends thereof.  
     
     
         16 . The cleaning sheet according to  claim 15 , wherein the monolobal filaments comprises monocomponent filaments, multicomponent filaments or a mixture thereof.  
     
     
         17 . The cleaning sheet according to  claim 16 , wherein the monolobal filaments comprise multicomponent, monolobal filaments.  
     
     
         18 . The cleaning sheet according to  claim 17 , wherein the multicomponent, monolobal filaments are bicomponent filaments comprising a first polymer component and a second polymer component.  
     
     
         19 . The cleaning sheet according to  claim 18 , wherein the first polymer component comprises polyethylene and the second polymer component comprises polypropylene.  
     
     
         20 . The cleaning sheet according to  claim 19 , wherein the first polymer component and the second polymer component are arranged in a side-by-side configuration.  
     
     
         21 . The cleaning sheet according to  claim 1 , wherein the nonwoven web comprises a laminate structure having at least two layers, a first layer and a second layer, 
 wherein the first layer comprises the plurality of multicomponent, multilobal filaments; and the second layer comprises a plurality of monolobal filaments.    
     
     
         22 . The cleaning sheet according to  claim 21 , wherein the monolobal filaments comprises monocomponent filaments, multicomponent filaments or a mixture thereof.  
     
     
         23 . The cleaning sheet according to  claim 22 , wherein the monolobal filaments comprise a thermoplastic polymer selected from the group consisting of polyolefins, polyesters, polyamides, polycarbonates, polyurethanes, polyvinylchloride, polytetrafluoroethylene, polystyrene, polylactic acid and blends thereof.  
     
     
         24 . The cleaning sheet according to  claim 22 , wherein the monolobal filaments comprise multicomponent, monolobal filaments.  
     
     
         25 . The cleaning sheet according to  claim 24 , wherein the multicomponent filaments are bicomponent filaments comprising a first polymer component and a second polymer component.  
     
     
         26 . The cleaning sheet according to  claim 25 , wherein the first polymer component comprises polyethylene and the second polymer component comprises polypropylene.  
     
     
         27 . The cleaning sheet according to  claim 26 , wherein the first polymer component and the second polymer component are arranged in a side-by-side configuration.  
     
     
         28 . The cleaning sheet according to  claim 1 , wherein the multicomponent, multilobal fibers comprises a higher melting point polymer component, a lower melting point polymer component and an interface between the higher melting polymer component.  
     
     
         29 . The cleaning sheet according to  claim 1 , wherein the nonwoven web is electret treated.  
     
     
         30 . The cleaning sheet according to  claim 14 , wherein the nonwoven web is electret treated.  
     
     
         31 . The cleaning sheet according to  claim 21 , wherein the nonwoven web is electret treated.  
     
     
         32 . A cleaning implement comprising: 
 a. a handle;    b. a head; and    c. a removable cleaning sheet;    wherein head is connected to the handle, the removable cleaning sheet is removable attached to the head and the removable cleaning sheet comprises the cleaning sheet of  claim 1 .    
     
     
         33 . A cleaning implement comprising: 
 a. a handle;    b. a head; and    c. a removable cleaning sheet;    wherein head is connected to the handle, the removable cleaning sheet is removable attached to the head and the removable cleaning sheet comprises the cleaning sheet of  claim 14 .    
     
     
         34 . A cleaning implement comprising: 
 a. a handle;    b. a head; and    c. a removable cleaning sheet;    wherein head is connected to the handle, the removable cleaning sheet is removable attached to the head and the removable cleaning sheet comprises the cleaning sheet of  claim 21 .    
     
     
         35 . A method of cleaning a surface comprising contacting and wiping the surface with the cleaning sheet of  claim 1 .  
     
     
         36 . A method of cleaning a surface comprising contacting and wiping the surface with the cleaning sheet of  claim 14 .  
     
     
         37 . A method of cleaning a surface comprising contacting and wiping the surface with the cleaning sheet of  claim 21 .  
     
     
         38 . A cleaning kit comprising the cleaning implement according to  claim 32  and a plurality of the cleaning sheets.  
     
     
         39 . The cleaning kit of  claim 38 , wherein the cleaning sheets are premoistened.  
     
     
         40 . The cleaning kit of  claim 38 , wherein the cleaning sheets are dry.

Join the waitlist — get patent alerts

Track US2003106568A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.