US Patent:
20010045736, Nov 29, 2001
Inventors:
Marian Gogoana - McLean VA, US
International Classification:
B42D001/00
B42D005/00
B42F013/00
Abstract:
The present invention provides techniques for imparting both flexibility and lamination to leaves or sheets comprising laminate films, including but not limited to leaves or sheets which at least partially enclose or encase printed matter to or between laminate film(s). The first laminate film and the second laminate film may or may not have part of all of a segment of printed matter, e.g., a display content sheet, positioned or sandwiched therebetween. All embodiments have a flex or flexible zone which provides flexibility to the leaf or sheet, the thickness of the flex zone being thinner than the thickness of portions of the leaf or sheet having two laminate films. The flex zone of each sheet or leaf provides flexibility for the leaf at strategic locations, the remainder of the sheet or leaf having durability and stiffness as afforded by the two films of lamination and the adhesive utilized in conjunction with one or both of the two lamination films.