Method and apparatus for embossing foil

Details Method and apparatus for embossing foil Method and apparatus for embossing foil

B - Operations, Transporting

31

F

271/19, 154/37

B31F 1/26 (2006.01) B21D 13/04 (2006.01) B29C 53/22 (2006.01) B31F 1/07 (2006.01)

Patent

CA 1157059

METHOD AND APPARATUS FOR EMBOSSING FOIL Abstract A method and apparatus for embossing foil to produce warp-free, textured packaging sheet. The method comprises the forming of bosses in the foil while firmly supporting the foil clamped on rigid lands at the perimeter of the boss to be formed. Drawing the foil between rigid male and female walls of a forming cavity while so held, and interposing a sheet of yieldable material between the surface of the female portion of the cavity and the sheet of foil to produce a yieldable matrix against which the foil comes to rest.

375163

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