B - Operations – Transporting – 31 – F
Patent
B - Operations, Transporting
31
F
B31F 1/07 (2006.01)
Patent
CA 2610176
The device for satinizing and embossing metallized or surface-treated packaging foils (9) comprises three embossing rolls (R1, R3, R2), all three embossing rolls cooperating with one another and the packaging foil (9) being capable of being passed under pressure between the first and the second and between the first and the third embossing rolls in order to produce a satin-finish and a pattern. The first, driven embossing roll (R1) has a tooth array composed of individual teeth (5) that are arranged in a homogenous grid, and the other two embossing rolls (R3, R2) each have a surface structure (A, B, B, G, H, J; Q, R, S, X, Y, Z) that differs from that of the first embossing roll. At least one (R3) of the additional embossing rolls has structural elements (11) that are arranged individually or in groups but not in the same grid as on the first roll, the structural element (11) being composed of individual teeth (5) and being arranged circularly on the embossing roll. Such an arrangement provides an effective breaking of the paper substrate of the foil and thus a surface having improved properties. Such a surface is particularly suitable for shadow embossing and for embossing authentication and identification features.
Boegli-Gravures S.a.
Fetherstonhaugh & Co.
LandOfFree
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