B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 51/42 (2006.01)
Patent
CA 2266217
Process for the selective zonal heating of a thermoformable sheet material or matrix, a process which provides for, in sequence, appropriately identifying at least one marked and/or decorated area having a well-defined perimeter on said sheet material, advancing said sheet material stepwise along a working track, heating the said sheet material along said working track only in relation to one side of one or a group of areas for thermoforming leaving the rest of the sheet material or matrix which is not heated relatively cold and therefore not subject to thermal deformation, and stepwise thermoforming along the said working track only in those areas so heated located in the said cold matrix.
Isap Omv Group Spa
Marks & Clerk
LandOfFree
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