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US 5,626,966 AGranted
Single-layer laser label
AssigneeBeiersdorf AG
InventorsKlaus Kulper, Ralf Hirsch
Life of this patent
Estimating the term…
Abstract
Single-layer laser label comprising a a) backing layer of plastic, which b) contains an additive which changes color under laser irradiation and which c) is coated on one side with a self-adhesive composition which d) is optionally covered with a release paper or a release film.
Claims5
Single-layer laser label comprising a
- a) backing of an electron beam-cured polyurethane acrylate coating material, which
- b) contains an additive that causes color changes from originally light, pale to dark under laser irradiation and which
- c) is coated on one side with a self-adhesive composition which
- d) is optionally covered with a release paper or a release film.
1 more element
Dependencies are inferred from the claim text.