Dai Nippon Printing Co., Ltd.

Other

Canon Kabushiki Kaisha

Kazuyoshi Hayashi

Koji Shimizu

Kozo Mita

Atsuya Ozawa

Masahiro Shimoyamada

Noriko Sugawara

Teruto Isonaga

Norio Endo

Yoji Orimo

A pair of superposed laminated films are fed by a web feed unit, and a longitudinal heat-sealing unit and a lateral heat-sealing unit unite together the pair of films by heat-sealing. A notch and tearing incision forming unit forms notches and tearing incisions in the pair of films. A cutting unit cuts the thus processed pair of united films into packages.

Package, package manufacturing method and package manufacturing system for carrying out the package manufacturing method

A laser-marking laminated structure has at least a base layer ( ), a masking layer ( ) capable of being removed by irradiation with a laser beam, and an OP layer ( ) formed in that order on a support element ( ). The base layer and the masking layer are colored layers having colors distinctly different from each other in lightness. The laser-marking laminated structure is irradiated with a laser beam in a desired pattern including characters to remove portions of the masking layer ( ) and the OP layer ( ) corresponding to the pattern so that the pattern is displayed clearly on the laser-marking laminated structure because of the contrast between the color of the base layer ( ) and that of the masking layer ( ).

Laser-marking laminated structure and laser-marked laminated structure

A laser-marking medium comprises at least a base layer and a masking layer formed on one side of a support element in the stated order. The base layer has laser light absorptivity, and the masking layer contains metal powder and a white pigment. A laser beam applied to the laser-marking medium is absorbed by the base layer having laser light absorptivity, and the base layer heats and breaks, whereby the masking layer in the laser applied region is removed, and a lightness difference is generated between a laser beam non-applied region of the masking layer and the laser beam applied region with the masking layer removed so as to make marks in the laser beam applied region distinctly visible.

Laser-marking medium

The toner supplying opening of a toner container for storing powder toner or the like used in image-forming apparatuses such as copying machine or the like is sealed with a laminated lid material film. This sealing film comprises a base layer having tearing directionality, a guide layer having tearing guide portions formed by laser processing and a laser barrier layer provided between the base layer and the guide layer for shielding laser beams.

Sealing film whose tearing guide is formed by laser processing, and toner container using the same

Package, package manufacturing method and package manufacturing system

The present invention relates to a technique for packaging fresh plants, by which the freshness of the fresh plants can be retained from the time they are shipped by producers, until the time they are consumed by consumers. By controlling the water vapor permeability, and oxygen and carbonic acid gas transmission rates of a film, a package of fresh plant suitable for non-airtight or airtight packaging, a packaging material useful for such a package, and a method for retaining the freshness of fresh plants are provided.

Growing community of inventors

Shinjuku-ku, Japan

Kazuyoshi Hayashi