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A card sheet including a top material having punched lines, the front side of the top material being printable. A carrier material of at least one polymer layer is directly applied as by extruding to the back side of the top material. The polymer has a stress-at-break in the range of 10 to 30 MPa an

A card sheet including a top material having punched lines, the front side of the top material being printable. A carrier material of at least one polymer layer is directly applied as by extruding to the back side of the top material. The polymer has a stress-at-break in the range of 10 to 30 MPa and an elongation at break in the range of 10 to 120%. From the card sheet individual cards may be broken out to form high quality calling (business) cards, photograph cards, post cards or the like.

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1. A card sheet, comprising: a top sheet having an inkjet or laser print-receptive front side and a back side;a polymer carrier layer attached directly to the back side in a manner so as to prevent separation therefrom;at least one cut line through the top sheet to form at least a portion of a perim

1. A card sheet, comprising: a top sheet having an inkjet or laser print-receptive front side and a back side;a polymer carrier layer attached directly to the back side in a manner so as to prevent separation therefrom;at least one cut line through the top sheet to form at least a portion of a perimeter of a card; andthe polymer carrier layer having stress and elongation properties such that after the card sheet has been passed through a printer or copier and desired indicia printed on the card sheet, the card sheet is capable of snap-breaking with only a single fold such that the polymer carrier layer snap breaks along one of the at least one cut line to form an edge of a separate or separable printed card whose entire bottom surface is defined by a bottom surface of the card sheet. 2. The card sheet of claim 1 wherein the top sheet includes an inkjet or laser print-receptive top coat. 3. The card sheet of claim 1 wherein the polymer carrier layer has an inkjet or laser print-receptive bottom coat. 4. The card sheet of claim 1 wherein the polymer carrier layer has a multi-layer construction. 5. The card sheet of claim 1 wherein the single fold is a single forward fold toward the front side. 6. The card sheet of claim 1 further comprising a bottom sheet attached to a face of the polymer carrier layer opposite to the top sheet. 7. The card sheet of claim 6 wherein the bottom sheet has an inkj et or laser print-receptive surface. 8. The card sheet of claim 6 wherein the polymer carrier layer is extruded on to the bottom sheet. 9. The card sheet of claim 1 wherein the polymer carrier layer includes a crystalline polymer or semi-crystalline polymer. 10. The card sheet of claim 1 wherein the card sheet has a thickness of 7-15 mils. 11. The card sheet of claim 1 wherein the polymer carrier layer includes a nucleating agent. 12. The card sheet of claim 1 wherein the polymer carrier layer includes a polymer having a filler. 13. The card sheet of claim 1 wherein the polymer carrier layer is roughened on a side opposite to the top sheet. 14. The card sheet of claim 1 wherein the top sheet is a paper card sheet. 15. The card sheet of claim 1 wherein the single fold is a single folding action between 45 and 165 degrees. 16. The card sheet of claim 1 wherein the printed card is a business card. 17. The card sheet of claim 1 wherein the polymer carrier layer is extruded directly on the back side. 18. The card sheet of claim 1 wherein the polymer carrier layer includes a polymer selected from the group of polymethylpentene, polyolefins, polyesters, polypropylene, polyethylene, copolymers of propylene and ethylene, polymethyl methacrylate, polystyrene, and compatible mixtures thereof. 19. The card sheet of claim 1 wherein the polymer carrier layer comprises polymethylpentene and the top sheet is cardstock. 20. The card sheet of claim 1 wherein the at least one cut line includes a die cut line. 21. The card sheet of claim 1 wherein the polymer carrier layer has a thickness of between 25 μm and 70 μm. 22. The card sheet of claim 1 wherein the top sheet has a thickness of between 150 μm and 250 μm. 23. The card sheet of claim 1 wherein the polymer carrier layer includes ethylene vinyl acetate or vinyl acetate. 24. The card sheet of claim 1 wherein the polymer carrier layer forms the bottom surface of the separate or separable printed card. 25. The card sheet of claim 1 wherein the at least one cut line does not penetrate the polymer carrier layer. 26. The card sheet of claim 1 wherein the card is a rectangular card, the at least one cut line comprises first and second horizontal cut lines and first and second vertical cut lines, all of the cut lines extend through the top sheet and define the entire perimeter of the rectangular card having card first, second, third and fourth edges, and the stress and elongation properties being such that after the card sheet has been passed through the printer or copier and desired indicia printed on the card sheet, the card sheet is capable of snap-breaking with only a single fold such that the polymer carrier layer snap breaks along a first one of the cut lines to form a first card edge, is capable of snap-breaking with only a single fold such that the polymer carrier layer snap breaks along a portion of a second one of the cut lines to form the card second edge, is capable of snap-breaking with only a single fold such that the polymer carrier layer snap breaks along a portion of a third one of the cut lines to form the card third edge, and is capable of snap-breaking with only a single fold such that the polymer carrier layer snap breaks along a portion of a fourth one of the cut lines to form the card fourth edge. 27. The card sheet of claim 1 wherein the top sheet has a thickness of eight to ten mils. 28. The card sheet of claim 1 wherein the front side is an inkjet print-receptive front side. 29. The card sheet of claim 1 further comprising a printable layer on a back side of the polymer carrier layer, and the printable layer including a bottom inkjet print-receptive surface that is printable by the printer or copier when the card sheet is passed through the printer or copier. 30. The card sheet of claim 1 wherein a bottom surface of the card sheet is formed by a laser or inkjet print-receptive coating. 31. The card sheet of claim 1 wherein the polymer carrier layer is attached directly to the back side without any intervening contact adhesive layer. 32. A card sheet, comprising: a top sheet having an inkjet or laser print-receptive front side and a back side;a polymer carrier layer directly on the back side in a manner so as to prevent separation of the top sheet from the polymer carrier layer;intersecting horizontal and vertical cut lines through the top sheet and defining perimeters of a plurality of cards in a central area of the top sheet and surrounded by a border portion of the top sheet;the polymer carrier layer having stress and elongation properties such that after the card sheet has been passed through a printer or copier and desired indicia printed on the card sheet, the card sheet can be folded with only a single first fold to snap break the polymer carrier layer along one of the cut lines to form an edge of a separate or separable printed card and can be folded with only a single second fold to snap break the polymer carrier layer along a portion of another one of the cut lines to form an edge of a separate or separable printed card;the separate or separable printed card including a portion of the polymer carrier layer and a portion of the top sheet attached to the portion of the polymer carrier layer in a manner so as to prevent separation of the portions; andthe card sheet being contact adhesive free between the top sheet and the polymer carrier layer. 33. The card sheet of claim 32 wherein the top sheet includes an inkjet or laser print-receptive top coat. 34. The card sheet of claim 32 wherein the polymer carrier layer has an inkjet or laser print-receptive bottom coat. 35. The card sheet of claim 32 wherein the polymer carrier layer has a multi-layer construction. 36. The card sheet of claim 32 wherein the single fold is a single forward fold toward the front side. 37. The card sheet of claim 32 further comprising a bottom sheet attached to a face of the polymer carrier layer opposite to the top sheet. 38. The card sheet of claim 32 wherein the polymer carrier layer includes a crystalline polymer or a semi-crystalline polymer. 39. The card sheet of claim 32 wherein the card sheet has a thickness of 7-15 mils. 40. The card sheet of claim 32 wherein the polymer carrier layer includes a nucleating agent. 41. The card sheet of claim 32 wherein the polymer carrier layer includes a polymer having a filler. 42. The card sheet of claim 32 wherein the polymer carrier layer is roughened on a side opposite to the top sheet. 43. The card sheet of claim 32 wherein the top sheet is a paper card sheet. 44. The card sheet of claim 32 wherein the single fold is a single folding action between 45 and 165 degrees. 45. The card sheet of claim 32 wherein the printed card is a business card. 46. The card sheet of claim 32 wherein the polymer carrier layer is extruded directly on the back side. 47. The card sheet of claim 32 wherein the polymer carrier layer includes a polymer selected from the group of polymethylpentene, polyolefins, polyesters, polypropylene, polyethylene, copolymers of propylene and ethylene, polymethyl methacrylate, polystyrene, and compatible mixtures thereof. 48. The card sheet of claim 32 wherein the polymer carrier layer comprises polymethylpentene and the top sheet is cardstock. 49. The card sheet of claim 32 wherein the cut lines include die cut lines. 50. The card sheet of claim 32 wherein the polymer carrier layer has a thickness of between 25 μm and 70 μm. 51. The card sheet of claim 32 wherein the top sheet has a thickness of between 150 μm and 250 μm. 52. The card sheet of claim 32 wherein the polymer carrier layer includes ethylene vinyl acetate or vinyl acetate. 53. The card sheet of claim 32 wherein the polymer carrier layer defines the bottom-most surface of the card sheet. 54. The card sheet of claim 32 wherein the cut lines do not penetrate the polymer carrier layer. 55. The card sheet of claim 32 wherein the cut lines include first and second horizontal cut lines and first and second vertical cut lines, all of the cut lines extending through the top sheet and defining the entire perimeter of a rectangular card having card first, second, third and fourth edges and the stress and elongation properties being such that after the card sheet has been passed through the printer or copier and desired indicia printed on the card sheet, the card sheet is capable of snap-breaking with only a single fold such that the polymer carrier layer snap breaks along a first one of the cut lines to form a first card edge, is capable of snap-breaking with only a single fold such that the polymer carrier layer snap breaks along a portion of a second one of the cut lines to form the card second edge, is capable of snap-breaking with only a single fold such that the polymer carrier layer snap breaks along a portion of a third one of the cut lines to form the card third edge, and is capable of snap-breaking with only a single fold such that the polymer carrier layer snap breaks along a portion of a fourth one of the cut lines to form the card fourth edge. 56. The card sheet of claim 32 wherein the top sheet has a thickness of eight to ten mils. 57. The card sheet of claim 32 wherein the front side is an inkjet print-receptive front side. 58. The card sheet of claim 32 further comprising a printable layer on a back side of the polymer carrier layer, and the printable layer including a bottom inkjet print-receptive surface that is printable by the printer or copier when the card sheet is passed through the printer or copier. 59. The card sheet of claim 32 wherein a bottom surface of the card sheet is formed by a laser or inkjet print-receptive coating.