Patent ID: 7579076
Filing Date: 2009-08-25
Classification: B32B,B41M,B42D,Y10T

Abstract:
1. A unit-piece composite printable sheet comprising: a) a front printable paper base material subdivided into independent sections by slits, with said front printable paper base material being a first layer of said unit-piece composite printable sheet; b) a back printable paper base material subdivided into independent sections by slits opposing said slits in said front printable paper base material, with said back printable paper base material being a second layer of said unit-piece composite printable sheet; c) a thermoplastic resin film adhesive layer located between and being bonded directly to the front and back printable paper base materials, with said thermoplastic resin film adhesive layer being a third layer of said unit-piece composite printable sheet, with said thermoplastic resin film adhesive layer being rigid and breakable, and directly bonding the front and back printable paper base materials; d) wherein the independent sections of the front and back printable paper base materials are laminated and permanently adhered directly to the thermoplastic resin film adhesive layer in abutting continuous arrays on opposite sides of the thermoplastic resin film adhesive layer such that the sections of the front printable paper base material align vertically with the sections of the back printable paper base material and the thermoplastic resin film adhesive layer maintains the sheet structure for the composite; e) wherein the thermoplastic resin film adhesive layer is separable at the points of abutment of the independent sections so as to enable the unit-piece composite printable sheet to be neatly broken into independent sections with clean edges; f) wherein the front printable paper base material and wherein the back printable paper base material define a paper material, thermoplastic resin film adhesive layer, paper material composite; g) wherein the front printable paper base material includes slits that extend only through the front printable paper base material to provide for said independent sections, and wherein the back printable paper base material includes slits that extend only through the back printable paper base material to provide for said independent sections, wherein each of said independent sections is defined by a periphery extending completely around each of said independent sections, and wherein each of said independent sections is independent via said slits defining the periphery of each of said independent sections; h) wherein said thermoplastic resin film adhesive layer is disposed between said slits in the front printable paper base material and back printable paper base material and includes breakable connecting portions in the areas of the slits in the front printable paper base material and the back printable paper base material such that said breakable connecting portions of said thermoplastic resin film adhesive layer define breakable lines in the areas of the slits in the front and back printable paper base materials, and said slits are formed only in the front and back printable paper base material without a reduction in thickness of the connecting portion; and i) wherein, by pressure applied from knives, breakable connecting portions are formed among the unit pieces on the thermoplastic resin film adhesive layer.