LAMINATED FILM AND PACKAGING FILM USING THE SAME

Japanese Patent JP2010076180

A

To provide a laminated film, capable of being clearly marked, and providing a printed image with good contrast after printing which is never externally affected and can be prevented from alteration, forgery, or the like.

The laminated resin film includes: a laser color development layer which develops color under laser irradiation; a surface layer provided on the laser-irradiated side of the laser color development layer; and a colored layer provided on the opposite side to the laser-irradiated side. The laser color development layer includes a thermoplastic resin containing a laser color former. The content of the laser color former to the thermoplastic resin is 5-50 wt.%, and the total thickness of the laminated film is 8-120 m.

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KITSUTANI NOZOMI
MITA KOZO
OSONE SATOSHI
UEKI TAKAYUKI

JP2008245494A

April 08, 2010

September 25, 2008

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DAINIPPON PRINTING CO LTD

B32B27/18; B65D65/40

Kenji Yoshitake
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Mari Asano

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