Plural Zoned Substrate Usable for Treating a Target Surface

Abstract

A device for treating a target surface, such as occurs when cleaning a window. The device has a substrate. The substrate has plural, alternating zones. One zone may apply a liquid to the target surface, while the immediately succeeding zone removes the liquid from the target surface. The following plural zones may be used to repeat this process.

1 . A device for cleaning a window, said device having a major dimension in the width direction and a longitudinal dimension generally orthogonal thereto, said device comprising:
 a pressure applying member, said pressure applying member having a longitudinal axis disposed in the widthwise direction; and   a sheet movably disposed on said pressure applying member, said sheet having longitudinally and alternatingly spaced apart first and second zones extending in said widthwise direction,   said first zones comprising an absorbent material for removing liquid from a window,   said second zones comprising nonabsorbent material for wiping said window behind said first zone, and   an advance mechanism for longitudinally advancing said sheet relative to said pressure applying member in response to manual actuation thereof by a user.   
     
     
         2 . A device according to  claim 1  wherein said pressure applying member comprises a blade having a proximal end and a distal end opposed thereto, said distal end having said sheet disposed thereacross for pressing said sheet against the window. 
     
     
         3 . A device according to  claim 2  wherein said pressure applying member comprises a steel blade. 
     
     
         4 . A device according to  claim 2  wherein said pressure applying member comprises an axially rotatable roller having a peripheral portion disposed away from said device, said peripheral portion of said roller having said sheet disposed thereon for pressing said sheet against a window. 
     
     
         5 . A polyolefinic film substrate for treating a target surface, said substrate having a longitudinal dimension and a width dimension orthogonal thereto, said substrate comprising:
 longitudinally alternating first zones and second zones, said first zones comprising a polyolefinic film substrate material free of an additive, said second zones comprising a liquid material for application to a target surface, whereby said liquid material can be applied to the target surface by contact of said second zone upon compression against the target surface.   
     
     
         6 . A substrate according to  claim 5  wherein said first zones and said second zones are predominantly oriented in said width direction. 
     
     
         7 . A substrate according to  claim 5  wherein said first zones and said second zones are parallel to said width direction. 
     
     
         8 . A substrate according to  claim 5  wherein said first zones and said second zones are of differential width as taken in the longitudinal direction. 
     
     
         9 . A substrate according to  claim 8  wherein said first zones have a greater width than said second zones. 
     
     
         10 . A substrate according to  claim 6  wherein said second zones are impregnated with a material selected from the group consisting of a cleanser, disinfectant, perfume, lubricant, and combinations thereof. 
     
     
         11 . A polyolefinic substrate for treating a target surface, said substrate having a longitudinal dimension and a width dimension mutually orthogonal thereto, said substrate comprising:
 at least two zones, said at least two zones being disposed in alternating relationship and spaced apart in the longitudinal direction, one of said zones being prewetted to apply a liquid to the target surface, the other of said zones being absorbent to absorb liquid deposited on the target surface by said polyolefinic substrate.   
     
     
         12 . A substrate according to  claim 11  wherein said prewetted zones have a substantially uniform first width and said absorbent zones have a substantially uniform second width, said absorbent zones having a greater width than said prewetted zones. 
     
     
         13 . A substrate according to  claim 11  wherein each of said prewetted zones and said absorbent zones comprises a variable width, as taken in the longitudinal direction. 
     
     
         14 . A substrate according to  claim 11  further comprising a scrubbing zone, said scrubbing zone being disposed intermediate said prewetted zone and said absorbent zone, whereby said scrubbing zone intercepts said target surface after said prewetted zone deposits liquid thereon. 
     
     
         15 . A substrate according to  claim 14  wherein said scrubbing zone comprises scrubbing material selected from the group consisting of microfiber, polyester, nylon, melamine and combinations thereof. 
     
     
         16 . A substrate according to  claim 11  wherein said liquid disposed in said prewetted zone comprises a cleaner. 
     
     
         17 . A substrate according to  claim 11  comprising, in order, three zones, a prewetted zone having liquid therein which can be deposited upon a target surface when placed in contact therewith, an absorbent second zone which can remove liquid deposited by said prewetted zone from the target surface, and a squeegee zone which comprises a polymeric film which can squeegee the target surface upon contact therewith. 
     
     
         18 . A substrate according to  claim 17  having a surface energy less than 25 dynes per centimeter. 
     
     
         19 . A substrate according to  claim 18  wherein said liquid has a surface tension at least 10 dynes per centimeter greater than said surface energy of said substrate. 
     
     
         20 . A method of cleaning a window, said method comprising the step of wiping a window with a sheet, said sheet according to  claim 1 , said sheet being disposed in a device according to  claim 1 .