Abstract:
A repositionable medium includes a base, a paper, and a first repositionable adhesive. The base has a top surface, a bottom surface, a first end edge, and a second end edge. The paper is fixedly coupled to the top surface of the base proximate to the first end edge. The paper has an inner edge and an outer edge. The outer edge is closer to the first end edge than the inner edge is to the first end edge. The inner edge is spaced a first distance from the first end edge of the base. The first repositionable adhesive is fixed to the bottom surface of the base and is not present in a first low adhesion area at a line across a width of the base and spaced a second distance from the second end edge of the base. The second distance equals the length of the first distance.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a divisional of U.S. patent application Ser. No. 13/081,488, filed Apr. 6, 2011, entitled “Repositionable Medium And Stack Thereof”, by Jay K. Sato and Douglas W. Wilson, which is a continuation-in-part of U.S. patent application Ser. No. 12/829,386, filed Jul. 2, 2010, entitled “Note Sheet and Pads Thereof and Related Method” by Jay K. Sato, Eric Kim, Susan L. Broyles, Darren S. Ferris, Cheng-Chung Chang, and Tsun-Rung Hsu, which is a continuation-in-part of U.S. patent application Ser. No. 29/355,485, filed Feb. 8, 2010, entitled “Note Sheets and Related Pads of Note Sheets” by Jay K. Sato, Eric Kim, Susan L. Broyles, Darren S. Ferris, Cheng-Chung Chang, and Tsun-Rung Hsu, and a continuation-in-part of U.S. patent application Ser. No. 29/361,471, filed May 11, 2010, entitled “Note Sheets and Related Pads of Note Sheets” by Jay K. Sato, Eric Kim, Susan L. Broyles, Darren S. Ferris, Cheng-Chung Chang, and Tsun-Rung Hsu. U.S. patent application Ser. Nos. 13/081,488, 12/829,386, 29/355,485, and 29/361,471 are all incorporated by reference herein in their entireties. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates generally to media of the type including a repositionable adhesive and relates more particularly to a novel medium of the aforementioned type, to a plurality of such media arranged in a stack, the method of manufacturing such media, and the method of using such media. 
     BACKGROUND 
     Media of the type including a repositionable adhesive are commonly used in a variety of venues including, but not limited to, homes, workplaces, and schools, and for a variety of applications, such as note-taking. One common type of medium having a repositionable adhesive is often referred to in the art as a repositionable note paper and includes a small sheet of paper having a top surface and a bottom surface, the top surface is receptive to markings, the bottom surface having a repositionable adhesive applied to a portion thereof, typically as a band of adhesive applied alongside one edge of the sheet. 
     In use, a handwritten or machine-printed marking is made on the top surface of the sheet, and the sheet is adhered to a desired object by pressing the adhesive band directly against the object. Often, prior to use, a plurality of identical such media are stacked on top of each other and held together using the adhesive bands to form a pad. The media can be stacked with their respective adhesive bands aligned with one another. For such stacks, markings can be made on the top sheet prior to separating the top sheet from the remainder of the pad, or the top sheet can be separated from the pad prior to applying a marking to the separated sheet. 
     In another type of stack, the media can be arranged in an alternating pattern in which each sheet is rotated 180 degrees relative to its adjacent neighbors with respect to their respective adhesive bands. The aforementioned type of stack is often referred to as an “accordion stack” or as a “Z-stack,” due to the appearance of the stack from its side when the top and bottom sheets of the stack are gently pulled in a direction away from one another. Such stacks can be used in conjunction with a slotted dispenser so that individual sheets can be separated from the stack by pulling the free end of the top sheet up through a narrow slot in the dispenser. Once the sheet has been removed from the dispenser, it can be marked and adhered to a desired substrate. Such stacks can also be used without a dispenser, in which case the marking can be applied to the sheet either before or after separating the sheet from the remainder of the stack. 
     Another common type of repositionable medium is often referred to in the art as a repositionable flag and includes a rectangular strip of polymeric film divided laterally into a first portion and a second portion, the first portion is usually longer than the second portion. The first portion, which can be translucent, has a repositionable adhesive applied to the bottom surface thereof and has a coating applied to the top surface thereof that is receptive to handwritten or machine-printed markings. The second portion can be devoid of adhesive on its bottom surface and can have a coating over its top surface that is receptive to handwritten or machine-printed markings In addition, the top surface of the second portion can be coated with a colored ink and can additionally include pre-printed information. 
     The above-described repositionable flags are often arranged in “Z-stacks,” with individual flags being dispensed from the “Z-stack” using a slotted dispenser. In use, a flag is dispensed from the “Z-stack,” and the flag is adhered to a desired object, such as a sheet of paper. If desired, markings can be made on the first portion and/or the second portion of the tape, either before or after the tape is adhered to a desired object. When the desired object is paper, the tape is can be positioned relative to the sheet of paper so that the second portion of the tape extends outside the boundaries of the sheet of paper, with the first portion of the tape positioned within the boundaries of the sheet. In this manner, the second portion can serve as a flag to identify a portion of the paper of interest, with the first portion of the tape being translucent so as not to obscure any printed matter located therebeneath. 
     Still another common type of repositionable medium includes a sheet of polymeric film divided into a first portion and a second portion, the second portion extending laterally from the first portion as a tab. The first portion, which can be translucent, can have a repositionable adhesive applied to the bottom surface thereof and has a coating applied to the top surface thereof that is receptive to handwritten or machine-printed markings The second portion can be devoid of adhesive on its bottom surface and can have a small sheet of paper, which can be colored, adhered to its top surface, the sheet of paper is receptive to handwritten or machine-printed markings Analogously to the repositionable note flags discussed above, markings can be made on the paper sheet and/or on top of the coated first portion, and the first portion can be adhered to a desired object. 
     However, in contrast with the aforementioned repositionable note flags, these tabbed media are not arranged in a “Z-stack” prior to use, but rather, are stacked so that all of the first portions of the polymeric film are aligned with one another and so that all of the second portions of the polymeric film are aligned with one another. The reason why a “Z-stack” has not been used for this type of medium is that, if a “Z-stack” arrangement were to be used, the adhesive area on the bottom of a first medium would come into direct contact with the paper portion of a second medium located directly beneath the first medium. Such contact between the adhesive area of the first medium and the paper of the second medium would undesirably result in the delamination or splitting of the paper from the second medium as the first medium is pulled away from the second medium. 
     It should, therefore, be appreciated that there is a need for a repositionable medium that can resist delamination when removed from a “Z-stack” arrangement. The present invention satisfies this need. 
     SUMMARY 
     The present invention includes a repositionable medium. The repositionable medium includes a base having a top surface, a bottom surface, a first end edge, and a second end edge. The repositionable medium also includes a paper fixedly coupled to the top surface of the base proximate to the first end edge. The paper has an inner edge and an outer edge, with the outer edge being closer to the first end edge than the inner edge is to the first end edge. The inner edge is spaced from the first end edge of the base by a first distance. The repositionable medium also includes a first repositionable adhesive fixed to the bottom surface of the base. The first repositionable adhesive not being present in a first low adhesion area at a line across a width of the base and spaced from the second end edge of the base by a second distance. The second distance is equal in length to the first distance. 
     In other, more detailed features of the invention, the first low adhesion area extends entirely across the width of the base. Also, the first low adhesion area can be devoid of adhesive. Also, the repositionable medium can further include a second repositionable adhesive. The second repositionable adhesive occupies at least a portion of the first low adhesion area. The second repositionable adhesive is less tacky than the first repositionable adhesive. 
     In other, more detailed features of the invention, the second repositionable adhesive is the same as the first repositionable adhesive and the second repositionable adhesive has a lower coat weight than the first repositionable adhesive. Also, the first low adhesion area can extend entirely across the width of the base and can extend from the second end edge of the base to slightly beyond the line spaced from the second end edge by the second distance. Also, the first low adhesion area can extend entirely across the width of the base from a third distance slightly less than the second distance to a fourth distance slightly greater than the second distance. Also, the first repositionable adhesive can be applied to the bottom surface of the base from the second end edge of the base to the third distance. The first repositionable adhesive can also be applied to the bottom surface of the base from the fourth distance to a fifth distance, with the fifth distance spaced from the first end edge and can be greater than the first distance. 
     In other, more detailed features of the invention, the first repositionable adhesive is not present in a second low adhesion area positioned along the second end edge of the base. The first repositionable adhesive can occupy at least some of the space between the first low adhesion area and the second low adhesion area. Also, the second repositionable adhesive can occupy the first low adhesion area and the second low adhesion area. Also, at least one of the first low adhesion area and the second low adhesion area can be devoid of adhesive. Also, both the first low adhesion area and the second low adhesion area can be devoid of adhesive. 
     In other, more detailed features of the invention, the base can include a polymeric film. Also, the polymeric film can be translucent. Also, at least a portion of the polymeric film can be coated with a marking-receptive coating. Also, at least a portion of the polymeric can be coated with a marking-receptive coating and a writable release coating. 
     In other, more detailed features of the invention, the paper can be coated with a writable release coating. Also, the paper can be fixedly coupled to the base using an adhesive. 
     The present invention also includes a stack of repositionable media including a plurality of repositionable media. Each of the plurality of repositionable media includes a base. The base has a top surface, a bottom surface, a first end edge, and a second end edge. Each of the plurality of repositionable media also includes a paper fixedly coupled to the top surface of the base proximate to the first end edge. The paper has an inner edge and an outer edge. The outer edge is closer to the first end edge than the inner edge is to the first end edge and the inner edge is spaced from the first end edge of the base by a first distance. Each of the plurality of repositionable media also includes a first repositionable adhesive fixed to the bottom surface of the base. The first repositionable adhesive is not present in a first low adhesion area at a line across a width of the base and spaced from the second end edge of the base by a second distance. The second distance is equal in length to the first distance. The plurality of repositionable media is arranged in a Z-stack. The inner edge of the paper of a first repositionable medium is aligned with the first low adhesion area on a second repositionable medium positioned directly thereover. 
     The present invention also includes a repositionable medium. The repositionable medium including a base. The base has a top surface and a bottom surface. The repositionable medium also includes a paper fixed to the top surface of the base, a first repositionable adhesive fixed to the bottom surface of the base in a first high adhesion area, and a second repositionable adhesive fixed to the bottom surface of the base in a first low adhesion area. The first low adhesive is different than the first high adhesion area and the second repositionable adhesive having less adhesive strength than the first repositionable adhesive. Also, the paper can cover a portion of the top surface of the base. 
     The present invention also includes a stack of repositionable media including a plurality of repositionable media. Each of the plurality of repositionable media includes a base, and the base has a top surface and a bottom surface. Each of the plurality of repositionable media also includes a paper fixed to the top surface of the base, a first repositionable adhesive fixed to the bottom surface of the base in a first high adhesion area, and a second repositionable adhesive fixed to the bottom surface of the base in a first low adhesion area. The first low adhesion area is different than the first high adhesion area, and the second repositionable adhesive has less adhesive strength than the first repositionable adhesive. The base has a first end edge and a second end edge. The paper has a first edge proximate to the first end edge of the base and a second edge distal to the first end edge of the base. The second edge of the paper is spaced from the first end edge of the base by a first distance. The plurality of repositionable media is arranged in a Z-stack, with the second edge of the paper of a first repositionable medium aligned with the first low adhesion area of the second repositionable adhesive of a second repositionable medium positioned directly thereover. 
     The present invention also includes a repositionable medium. The repositionable medium includes a base. The base having a top surface and a bottom surface. The repositionable medium also includes a paper fixed to the top surface of the base, and a first repositionable adhesive fixed to the bottom surface of the base in a first high adhesion area and in a second high adhesion area. At least a portion of the first and second high adhesion areas are spaced apart from one another. 
     In other, more detailed features of the invention, the paper can have a first edge proximate to the first end edge of the base and a second edge distal to the first end edge of the base. The second edge of the paper can be spaced from the first end edge of the base by a first distance and the first high adhesion area of the first repositionable adhesive can be spaced from the second end edge of the base by a second distance that can be slightly greater in length than the first distance. The second high adhesion area of the first repositionable adhesive can be positioned over at least a portion of the bottom surface and can extend from the second end edge of the base to a third distance from the second end edge of the base. The third distance can be slightly less in length than the first distance. 
     In other, more detailed features of the invention, the repositionable medium can further include a second repositionable adhesive applied to the bottom surface of the base in a first low adhesion area. Also, the first low adhesion area can be located between the first high adhesion area and the second high adhesion area. 
     The present invention also includes a stack of repositionable media including a plurality of repositionable media. Each of the plurality of repositionable media includes a base. The base has a top surface and a bottom surface. Each of the plurality of repositionable media also includes a paper fixed to the top surface of the base, and a first repositionable adhesive fixed to the bottom surface of the base in a first high adhesion area and in a second high adhesion area. At least a portion of the first and second high adhesion areas are spaced apart from one another. Each of the plurality of repositionable media also includes a second repositionable adhesive applied to the bottom surface of the base in a first low adhesion area. The second repositionable adhesive has less adhesive strength than the first repositionable adhesive. The base has a first end edge and a second end edge. The paper has a first edge proximate to the first end edge of the base and a second edge distal to the first end edge of the base. The second edge of the paper is spaced from the first end edge of the base by a first distance. The second edge of the paper of a first repositionable medium is aligned with the first low adhesion area of the second repositionable adhesive of a second repositionable medium positioned directly thereover. 
     The present invention also includes a repositionable medium. The repositionable medium including a base that has a top surface and a bottom surface, a paper fixed to the top surface of the base, a first repositionable adhesive fixed to the bottom surface of the base, and a release coating applied to a top surface of the paper. 
     In other, more detailed features of the invention, the release coating can be applied to only a portion of the top surface of the paper. Also, the release coating can be applied to the top surface of the paper only along at least one of the inner edge and the outer edge of the paper. Also, the base can have a first end edge and a second end edge and the paper is located closer to the first end edge of the base than to the second end edge of the base. 
     The present invention also includes a stack of repositionable media including a plurality of repositionable media. Each of the plurality of repositionable media includes a base having a top surface and a bottom surface, a paper fixed to the top surface of the base, a first repositionable adhesive fixed to the bottom surface of the base, and a release coating applied to a top surface of the paper. The plurality of repositionable media is arranged in a Z-stack. 
     The present invention also includes a repositionable medium. The repositionable medium includes a base that includes a top surface and a bottom surface, a paper fixed to the top surface of the base, a first repositionable adhesive fixed to the bottom surface of the base, and a non-adhesive layer applied to the top of the paper along at least one edge for adhering the paper to the base. 
     Other features of the invention should become apparent to those skilled in the art from the following description of the preferred embodiments taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention, the invention not being limited to any particular preferred embodiment(s) disclosed. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings, which are hereby incorporated into and constitute a part of this specification, illustrate various embodiments of the invention and, together with the description, serve to explain the principles of the invention. It should be noted that the drawings are not drawn to scale. In the drawings wherein like reference numerals represent like parts: 
         FIGS. 1( a ), 1( b ), and 1( c )  are top plan, side elevational, and bottom plan views, respectively, of a first embodiment of a repositionable medium; 
         FIGS. 2( a ), 2( b ), and 2( c )  are top plan, side elevational, and bottom plan views, respectively, of the base shown in  FIG. 1( a ) ; 
         FIGS. 3( a ) and 3( b )  are top plan and side elevational views, respectively, of the overlay shown in  FIG. 1( a ) ; 
         FIG. 4  is a simplified side elevational view, partly in section, of a plurality of the repositionable media of  FIG. 1( a )  in a “Z-stack,” the “Z-stack” being disposed in a slotted dispenser; 
         FIGS. 5( a ) and 5( b )  are bottom plan and side elevational views, respectively, of a second embodiment of a repositionable medium; 
         FIGS. 6( a ) and 6( b )  are bottom plan and side elevational views, respectively, of a third embodiment of a repositionable medium; 
         FIGS. 7( a ) and 7( b )  are bottom plan and side elevational views, respectively, of a fourth embodiment of a repositionable medium; 
         FIGS. 8( a ) and 8( b )  are bottom plan and side elevational views, respectively, of a fifth embodiment of a repositionable medium; 
         FIGS. 9( a ) and 9( b )  are top and bottom plan views, respectively, of a sixth embodiment of a repositionable medium; 
         FIGS. 10( a ) and 10( b )  are top and bottom plan views, respectively, of a seventh embodiment of a repositionable medium; 
         FIG. 11  is a flowchart for a method of manufacturing a repositionable medium; and 
         FIG. 12  is a flowchart for a method of using a repositionable medium. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     The present invention is embodied in a repositionable medium, a stack of repositionable media, and related methods. The repositionable media come in a multitude of configurations. A few non-limiting examples of repositionable media, stacks thereof, and related methods are discussed below. 
     As noted above, the present invention is directed at the above-described problem of delamination occurring within a “Z-stack” of repositionable media of the type including a paper sheet fixed to a base having a repositionable adhesive. According to one approach of the present invention, this problem can be ameliorated by providing a lower strength repositionable adhesive in one or more low adhesion areas that can be aligned with one or more of the edges of the paper for the medium positioned thereunder, with a higher strength repositionable adhesive provided in one or more high adhesion areas. As used herein, adhesive strength means peel adhesion or tack adhesion as determined by Pressure Sensitive Tape Council test methods PSTC-101 and PSTC-16. According to another approach, this problem can be ameliorated by not providing any adhesive in one or more of the low adhesion areas that can be aligned with one or more of the edges of the paper for the medium positioned thereunder. According to yet another approach, this problem can be ameliorated by providing a release on top of the edges of the paper sheet to inhibit adhesion with the repositionable adhesive of the medium positioned thereover. According to still yet another approach, this problem can be ameliorated by gluing or taping the edges of the paper down to its respective base. 
     Referring now to  FIGS. 1( a ), 1( b ), and 1( c ) , there are shown top plan, side elevational, and bottom plan views, respectively, of a first embodiment of a repositionable medium, the repositionable medium being represented generally by reference numeral  11 . (For illustrative purposes, certain features of medium  11  are not shown in all views.) 
     Medium  11  can include a base  13 , which is also shown separately in  FIGS. 2( a ) through 2( c ) . Base  13 , which can be a one-piece structure having a top surface  13 - 1  and a bottom surface  13 - 2 , can be made of a translucent polymeric film, for example, a translucent (clear or tinted) polyethylene terephthalate (PET) film. Such a PET film can have a thickness, for example, of about 125 μm. Base  13  can be shaped to include a first end portion  15 , a second end portion  17 , and an intermediate portion  19 , first end portion  15  and second end portion  17  are spaced apart from one another, with intermediate portion  19  extending between and interconnecting first end portion  15  and second end portion  17 . 
     The first end portion  15  can have a generally trapezoidal shape when viewed from above and can be shaped to include a first side edge  15 - 1 , a second side edge  15 - 2 , and an end edge  15 - 3 . The corner where end edge  15 - 3  meets first side edge  15 - 1  and the corner where end edge  15 - 3  meets second side edge  15 - 2  can be rounded. In addition, first side edge  15 - 1  can have a slight concavity  16 - 1  just before meeting intermediate portion  19 , and second side edge  15 - 2  can have a corresponding concavity  16 - 2  just before meeting intermediate section  19 . Second end portion  17  can have a generally trapezoidal shape when viewed from above and can be shaped to include a first side edge  17 - 1 , a second side edge  17 - 2 , and an end edge  17 - 3 . The corner where end edge  17 - 3  meets first side edge  17 - 1  and the corner where end edge  17 - 3  meets second side edge  17 - 2  can be rounded. 
     In addition, first side edge  17 - 1  can have a slight concavity  18 - 1  just before meeting intermediate portion  19 , and second side edge  17 - 2  can have a corresponding concavity  18 - 2  just before meeting intermediate portion  19 . Intermediate portion  19  can have a generally rectangular shape when viewed from above and can include a first side edge  19 - 1  and a second side edge  19 - 2 . Base  13  can be symmetric about both its longitudinal centerline and its lateral centerline, and first end portion  15  and second end portion  17  can be mirror-images of one another. 
     Exemplary dimensions for base  13  can include a length l 1  measured from end edge  15 - 3  to end edge  17 - 3  of approximately 38.1 mm and a width w 1  measured from side edge  19 - 1  to side edge  19 - 2  of approximately 25.4 mm. In addition, each of portions  15  and  17  can have a length l 2  of 14.3 mm, and portion  19  can have a length l 3  of approximately 10.3 mm. In other embodiments, length l 1  can range from approximately 28.5 mm to approximately 47.7 mm, lengths l 2  and l 3  can range from approximately 9.5 mm to approximately 15.9 mm, and width w 1  can range from approximately 25.4 mm to approximately 76.2 mm. 
     Referring back to  FIG. 1( b ) , medium  11  can further include a topcoat  23 , which can be applied directly over top surface  13 - 1  of base  13  in at least the areas corresponding to end portion  17  and intermediate portion  19 . Topcoat  23  can be a conventional writing-receptive coating and can be used to render base  13  receptive to handwritten markings, such as those made, for example, by pen, marker and/or pencil, and/or to machine-printed markings, such as those made, for example, by typewriter and/or printer. Writable release coat  25 , which can be applied directly over the entirety of topcoat  23  or a portion of topcoat  23 , can be a conventional writable release coating and can be used to minimize adhesion of base  13  to a repositionable adhesive brought into contact therewith. 
     Medium  11  can also include an overlay  31 , which is also shown separately in  FIGS. 3( a ) and 3( b ) . Overlay  31  can be securely fixed to top surface  13 - 1  of base  13  in first end portion  15  using a suitable adhesive  33 , which adhesive can be, for example, an adhesive coating or a strip of double-sided tape. Overlay  31  can have a generally trapezoidal shape and can include a first side edge  31 - 1 , a second side edge  31 - 2 , an outer edge  31 - 3 , and an inner edge  31 - 4 . Overlay  31  can be dimensioned so that first side edge  31 - 1 , second side edge  31 - 2  and outer edge  31 - 3  lie substantially flush with first side edge  15 - 1 , second side edge  15 - 2 , and end edge  15 - 3 , respectively, of first end portion  15 , with inner edge  31 - 4  of overlay  31  lying inwardly from end edge  15 - 3  a short distance from intermediate portion  19 . Where, for example, base  13  has the dimensions specified above, overlay  31  can have a length l 4 , a first distance, from outer edge  31 - 3  to inner edge  31 - 4  of approximately 12.7 mm. In other embodiments, length l 4  can range from approximately 9.5 mm to approximately 15.9 mm. A phantom line  20  on the medium can be defined extending from first side edge  17 - 1  to second side edge  17 - 2  spaced at a distance equal to length l 4 , a second distance, measured from end edge  17 - 3 . See  FIG. 2( a ) . 
     Overlay  31  can be a non-translucent material and can include, for example, a sheet of paper  35  that is receptive to handwritten markings, such as those made, for example, by pen, marker and/or pencil, and/or to machine-printed markings, such as those made, for example, by typewriter and/or printer. Paper  35  can include colored paper or white paper and can be either coated or uncoated. A writable release coating  37  can be applied to at least a portion of the top surface of paper  35  to minimize adhesion of overlay  31  to a repositionable adhesive of another medium  11  brought into contact therewith. 
     Referring back to  FIG. 1( c ) , medium  11  can further include a plurality of adhesive patches  41 ,  43  and  45  located on bottom surface  13 - 2  of base  13 . As used herein, the term “plurality” means two or more. Adhesive patch  41 , which can include, for example, a coating of a relatively low-tack repositionable, ultraremovable adhesive, a low coat weight adhesive, a pattern-coated adhesive, or a detackified adhesive, can have boundaries including a first side edge  41 - 1 , a second side edge  41 - 2 , an outer edge  41 - 3 , and an inner edge  41 - 4 . First side edge  41 - 1  can lie substantially flush with a portion of first side edge  17 - 1  of base  13 , and second side edge  41 - 2  can lie substantially flush with a portion of second side edge  17 - 2  of base  13 . Outer edge  41 - 3  can be located at a distance, a third distance, from end edge  17 - 3  that is slightly less than the length l 4  of overlay  31  as measured from outer edge  31 - 3  to inner edge  31 - 4 , and inner edge  41 - 4  can be located at a distance, a fourth distance, from end edge  17 - 3  that slightly exceeds the length l 4  of overlay  31  as measured from outer edge  31 - 3  to inner edge  31 - 4 . The locations of first side edge  41 - 1 , second side edge  41 - 2 , outer edge  41 - 3 , and inner edge  41 - 4  define a first low adhesion area. 
     In this manner, as will be seen below, in a “Z-stack” of two or more media  11 , adjacent media  11  will be arranged so that the inner edge  31 - 4  of overlay  31  of the lower medium  11  is aligned between outer edge  41 - 3  and inner edge  41 - 4  of the upper medium  11 . Where medium  11  has the dimensions discussed above, outer edge  41 - 3  and inner edge  41 - 4  can be spaced apart from one another by a distance of, for example, approximately 3.0 mm. In other embodiments, outer edge  41 - 3  and inner edge  41 - 4  can be spaced apart from one another by a distance ranging from approximately 2.0 mm to approximately 5.0 mm. 
     Adhesive patch  43 , which can include a coating of a relatively high-tack repositionable or ultraremovable adhesive, can have boundaries including a first side edge  43 - 1 , a second side edge  43 - 2 , an outer edge  43 - 3 , and an inner edge  43 - 4 . First side edge  43 - 1  can lie substantially flush with a portion of first side edge  17 - 1  of base  13 , second side edge  43 - 2  can lie substantially flush with a portion of second side edge  17 - 2  of base  13 , outer edge  43 - 3  can lie substantially flush with end edge  17 - 3  of base, and inner edge  43 - 4  can lie substantially flush with outer edge  41 - 3  of patch  41 . The first side edge  43 - 1 , second side edge  43 - 2 , outer edge  43 - 3 , and inner edge  43 - 4  also define a first high adhesion area. 
     Adhesive patch  45 , which can be identical in composition to adhesive patch  43  and which can include a coating of a relatively high-tack repositionable or ultraremovable adhesive, can cover a second high adhesion area on the bottom surface of base  13  extending laterally substantially the full width of base  13  and extending longitudinally from inner edge  41 - 4  to a boundary  45 - 1  substantially aligned with inner edge  31 - 4  of overlay  31 . Boundary  45 - 1  is located a distance, a fifth distance, from the first end edge  15 - 3 , and the distance is greater than length l 4 . 
     As discussed above, adhesive patch  43  and adhesive patch  45  can include relatively high-tack repositionable or ultraremovable adhesives, and adhesive patch  41  can include a relatively low-tack repositionable or ultraremovable adhesive. It should be understood that adhesive patches  41 ,  43 , and  45  can include the same repositionable or ultraremovable adhesive that is detackified or pattern-coated to provide the necessary relative tack required for each patch. Alternatively, adhesive patch  41  can be a lower coat weight of the same adhesive used for adhesive patch  43  or adhesive patch  45 . In one embodiment, the coat weight of adhesive patches  43  and  45  can range between approximately 5.5 grams/square meter (gsm) to approximately 6.5 gsm, and the coat weight of adhesive patch  41  can range between approximately 5.5 gsm to approximately 6.5 gsm. In other embodiments, the coat weight of adhesive patches  43  and  45  can range between approximately 3 gsm to approximately 12 gsm, and the coat weight of adhesive patch  41  can range between approximately  3  gsm to approximately 12 gsm. 
     Ultraremovable adhesives are discussed in the following patents and patent publications, all of which are incorporated herein by reference herein in their entireties: U.S. Pat. No. 6,328,518 to Wong, issued Dec. 11, 2001; U.S. Pat. No. 6,315,851 to Mazurek et al., issued Nov. 13, 2001; U.S. Pat. No. 5,656,705 to Mallya et al., issued Aug. 12, 1997; and U.S. Patent Application Publication No. US 2002/0047263 A1 to McCarthy et al., published Apr. 25, 2002. Additionally, a primer can be used with removable or ultraremovable adhesives to increase the anchorage of the adhesive to the base. 
     Referring now to  FIG. 4 , there is shown a simplified side elevational view of three identical media  11 - 1 ,  11 - 2 , and  11 - 3  arranged in a “Z-stack,” the “Z-stack” being represented generally by reference numeral  51 . (For ease of illustration and understanding, certain features of “Z-stack” are not shown.) As can be appreciated, although “Z-stack”  51  is shown including three stacked media, “Z-stack”  51  is not limited to a stack of three stacked media and could include, for example, a greater or lesser number of media. In  FIG. 4 , the uppermost medium  11 - 1  is shown being dispensed from a slotted dispenser  61 , shown partly in section. Dispenser  61  can be similar to conventional dispensers but dimensioned appropriately for “Z-stack”  51 . 
     As can be seen, to dispense the uppermost medium  11 - 1  from dispenser  61 , a user can pull the exposed end of medium  11 - 1  away from the remainder of “Z-stack”  51 , for example, by pulling the combination of end portion  15  of base  13  and overlay  31  of medium  11 - 1  through slot  61 - 1  in the direction indicated by arrow A. Although overlay  31  of middle medium  11 - 2  is in contact with adhesive on the bottom of uppermost medium  11 - 1 , the separation of uppermost medium  11 - 1  from the remainder of “Z-stack”  51  is less likely to result in the delamination of overlay  31  from middle medium  11 - 2  than would otherwise be the case. This is because inner edge  31 - 4  of overlay  31  of middle medium  11 - 2  is in contact with adhesive patch  41  of uppermost medium  11 , adhesive patch  41  is relatively low-tack, as compared to adhesive patches  43  or  45 . Since the initiation of delamination is most likely to occur along inner edge  31 - 4  of overlay  31  when pulling medium  11 - 1  in the direction indicated by arrow A, the reduction in adhesion between  31  and medium  11 - 1  due to the use of adhesive patch  41 , instead of the use of an adhesive similar to that of patches  43  and  45 , is likely to result in a reduction in the occurrence of delamination. 
     Medium  11  can be marked and/or applied to objects in the conventional fashion. Referring now to  FIGS. 5( a ) and 5( b ) , there are shown bottom plan and side elevational views, respectively, of a second embodiment of a repositionable medium, the repositionable medium being represented generally by reference numeral  111 . 
     Medium  111  can be similar in most respects to medium  11 , the principal difference between the two media being that, in medium  111 , the area occupied by patch  43  of medium  11  can be occupied with the combination of an adhesive patch  112 , occupying the first high adhesion area, and an adhesive patch  113 , adhesive patch  113  extending along edge  17 - 3  of base  13  and occupying a second low adhesion area. Adhesive patch  112  can be identical in composition to adhesive patch  43  and can include a relatively high-tack repositionable or ultraremovable adhesive. Adhesive patch  113  can be identical in composition to adhesive patch  41  and can include a relatively low-tack repositionable or ultraremovable adhesive. Patch  113  can serve to inhibit the initiation of delamination along outer edge  31 - 3  of overlay  31 . 
     Medium  111  can be stacked, dispensed, marked, and/or adhered to an object analogously to medium  11 . 
     Referring now to  FIGS. 6( a ) and 6( b ) , there are shown bottom plan and side elevational views, respectively, of a third embodiment of a repositionable medium, the repositionable medium being represented generally by reference numeral  211 . 
     Medium  211  can be similar in most respects to medium  111 , the principal difference between the two media being that, in medium  211 , no adhesive is positioned in the corresponding areas occupied by patches  41  and  113  of medium  111 . Instead, medium  211  can include a first non-adhesive area  213  provided in the area corresponding to patch  41  of medium  11 , and a second non-adhesive area  215  can be provided in the area corresponding to patch  113  of medium  11 . In another embodiment (not shown), second non-adhesive area  215  can be occupied with an adhesive similar to that of patch  41  or similar to that of patches  43  and  45 , with first non-adhesive area  213  remaining unoccupied by adhesive. 
     Medium  211  can be stacked, dispensed, marked, and/or adhered to an object analogously to medium  11 . 
     Referring now to  FIGS. 7( a ) and 7( b ) , there are shown bottom plan and side elevational views, respectively, of a fourth embodiment of a repositionable medium, the repositionable medium being represented generally by reference numeral  311 . 
     Medium  311  can be similar in most respects to medium  11 , the principal difference between the two media being that adhesive patches  41  and  43  of medium  11  can be replaced in medium  311  with an adhesive patch  313 . Adhesive patch  313  can be identical in composition to adhesive patch  41  and can include a relatively low-tack repositionable or ultraremovable adhesive. 
     Medium  311  can be stacked, dispensed, marked, and/or adhered to an object analogously to medium  11 . 
     Referring now to  FIGS. 8( a ) and 8( b ) , there are shown bottom plan and side elevational views, respectively, of a fifth embodiment of a repositionable medium, the repositionable medium being represented generally by reference numeral  411 . 
     Medium  411  can be similar in most respects to medium  211 , the principal difference between the two media being that patches  45 ,  213  and  112  of medium  211  can be replaced in medium  411  with an adhesive patch  413 . Patch  413  can include an adhesive similar to that of patch  45  of medium  211 . 
     Medium  411  can be stacked, dispensed, marked, and/or adhered to an object analogously to medium  11 . 
     Referring now to  FIGS. 9( a ) and 9( b ) , there are shown top and bottom plan views, respectively, of a sixth embodiment of a repositionable medium, the repositionable medium being represented generally reference numeral  511 . 
     Medium  511  can be similar in many respects to medium  11 . One difference between the two media can be that medium  511  can include a single adhesive patch  513  covering the areas corresponding to the areas covered by patches  41 ,  43  and  45  of medium  11 . Patch  513  can include a repositionable or ultraremovable adhesive similar to that of patches  43  and  45  of medium  11 . Another difference between medium  511  and medium  11  can be that medium  511  can further include a strip of non-adhesive coating  517 , for example, a lacquer coating, positioned over inner edge  31 - 4  (shown in phantom) of overlay  31 , with a first edge  517 - 1  of non-adhesive coating  517  adhered to overlay  31  and with a second edge  517 - 2  of non-adhesive coating  517  adhered to base  13 . Non-adhesive coating  517  can serve to inhibit the initiation of delamination of overlay  31  along inner edge  517 - 1 . As can be appreciated, non-adhesive coating  517  could be replaced with other non-adhesive means, such as, for example, a single-sided adhesive tape. 
     Medium  511  can be stacked, dispensed, marked, and/or adhered to an object analogously to medium  11 . 
     Referring now to  FIGS. 10( a ) and 10( b ) , there are shown top and bottom plan views, respectively, of a seventh embodiment of a repositionable medium, the repositionable medium being represented generally reference numeral  611 . 
     Medium  611  can be similar in many respects to medium  11 . One difference between the two media can be that medium  611  can include a single adhesive patch  613  covering the areas corresponding to the areas covered by patches  41 ,  43  and  45  of medium  11 . Patch  613  can include a repositionable or ultraremovable adhesive similar to that of patches  43  and  45  of medium  11 . Another difference between medium  611  and medium  11  can be that medium  611  can include an overlay  615 , instead of overlay  31  of medium  11 . Overlay  615  can differ from overlay  31  in that, whereas overlay  31  can include a writable release coating  37  applied over the entire top surface of paper sheet  35 , overlay  615  does not include a writable release coating applied over the entire top surface of its paper sheet  617 , but rather, can include a first band  619 - 1  of a writable release coating applied to the top surface of paper sheet  617  along an inner edge  617 - 1  of sheet  617  and a second band  619 - 2  of a writable release coating applied to the top surface of paper sheet  617  along an outer edge  617 - 2  of sheet  617 . Bands  619 - 1  and  619 - 2  of the release coating can reduce adhesion between the overlay  615  of a first medium  611  and adhesive patch  613  on the bottom of a second medium  611  positioned directly thereover and, in so doing, can serve to inhibit the initiation of delamination of overlay  615  along inner edge  617 - 1  and/or along outer edge  617 - 2 . 
     As can be appreciated, additional bands of the release coating can also be applied to the top surface of paper sheet  617  along each of its two side edges, thereby forming a frame around the perimeter of sheet  617 , to inhibit the initiation of delamination of overlay  615  along either of its side edges. 
     Medium  611  can be stacked, dispensed, marked, and/or adhered to an object analogously to medium  11 . 
     Referring now to  FIG. 11 , a flowchart for a method of manufacturing a repositionable medium in a “Z-stack” is shown generally at  700 . At step  702 , a base and an overlay are provided. A first adhesive is coated onto the base at step  704 . In step  706 , the overlay is laminated to the base. After steps  702 - 706 , the material is sheeted into sheets at step  708 . At step  710 , the sheets are stacked in a “Z-stack” manner. The number of sheets in the stack is dependent on the number of tabs in the final stack of repositionable media. After stacking, the tabs are die cut at step  712 . After being die cut, the “Z-stack” is placed into a dispenser at step  714 . 
     In other embodiments of the method of manufacturing, a step of coating the base with a primer before the step of coating the first adhesive can be included. In yet another embodiment, a further step of coating a second adhesive can be included. Additionally, in yet another embodiment, the step of applying a topcoat can be included. In other embodiments, the step of applying a release coating or writable release coating to the overlay, the top surface of the base, or both the overlay and the top surface of the base can be included. In yet another embodiment, before the sheeting step, the unsheeted material can be rolled into roll form. The steps of sheeting, stacking, die cutting, and placing the “Z-stacks” into dispensers can be performed at different location than the coating steps. 
     Referring now to  FIG. 12 , a flowchart for a method of using a repositionable medium is shown generally at  750 . In step  752 , a first medium is removed from the dispenser, whereupon the second medium becomes accessible. In another step  754 , the first medium is adhered to a substrate, and in another step  756 , the first medium is written upon. 
     In any event, it is to be appreciated that in connection with the particular exemplary embodiment(s) presented herein certain structural and/or functional features are described as being incorporated in defined elements and/or components. However, it is contemplated that these features can, to the same or similar benefit, also likewise be incorporated in other elements and/or components where appropriate. It is also to be appreciated that different aspects of the exemplary embodiments can be selectively employed as appropriate to achieve other alternative embodiments suited for desired applications, the other alternative embodiments thereby realizing the respective advantages of the aspects incorporated therein. 
     Additionally, it is to be appreciated that certain elements described herein as incorporated together can under suitable circumstances be stand-alone elements or otherwise divided. Similarly, a plurality of particular functions described as being carried out by one particular element can be carried out by a plurality of distinct elements acting independently to carry out individual functions, or certain individual functions can be split-up and carried out by a plurality of distinct elements acting in concert. Alternatively, some elements or components otherwise described and/or shown herein as distinct from one another can be physically or functionally combined where appropriate. 
     In short, the present specification has been set forth with reference to preferred embodiments. Obviously, modifications and alterations will occur to others upon reading and understanding the present specification. It is intended that the invention be construed as including all such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.