Laser-marking film
AssigneeToyo Seikan Kaisha, Ltd.
InventorsKeiji Fukue, Atsushi Fukahori, Machiko Sugiyama, Shinji Tanaka, Jun Matsushima
Life of this patent
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Abstract
To provide a laser-marking film having a laser-marking ink layer capable of forming vivid images when it is irradiated with a laser beam for forming laser markings. A laser-marking film comprising a base film 1, a white underlying layer 3 formed on the base film 1, and an ink layer 5 for laser marking formed on the underlying layer 3, wherein the ink layer 5 contains, dispersed therein, an iron oxide as a laser beam-absorbing agent in an amount of 0.1 to 30 parts by weight per 100 parts by weight of a resin binder.
Claims6
A laser-marking film comprising a base film, a white underlying layer formed on the base film, and an ink layer for laser marking formed on the underlying layer, wherein the ink layer for laser marking contains, dispersed therein, an iron oxide as a laser beam-absorbing agent in an amount of 0.1 to 30 parts by weight per 100 parts by weight of a resin binder.
Dependencies are inferred from the claim text.