Title:
FILM FOR PACKAGING BAG, METHOD FOR PRODUCING SAME, PACKAGING BAG, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/042499
Kind Code:
A1
Abstract:
The method for producing a film for a packaging bag according to the present invention comprises a step for printing halftone on a PET layer S11 and providing a printing layer S14, a step for laminating an NY layer S12 and a PE layer S13 on the PET layer with the printing layer interposed therebetween and forming a laminate film, and a step for irradiating the printing layer in the laminate film with laser light from the PET-layer side and forming linear grooves 15, 25 in the laminate film. Close adhesion between two layers is achieved due to the printing layer including ink distributed in a halftone pattern, and irradiating the halftone-pattern ink with the laser light makes it possible to efficiently generate heat at low light intensity, suppress the generation of fumes, and form linear grooves that are readily torn.
More Like This:
| JP4978295 | Strip packaging with child resistance function |
| JP2006076623 | PACKAGED FOOD, AND ITS PACKAGING SHEET |
| JP4043592 | Easy-to-open bag |
Inventors:
HATA MOTOHIDE (JP)
Application Number:
PCT/JP2022/023475
Publication Date:
March 23, 2023
Filing Date:
June 10, 2022
Export Citation:
Assignee:
TOYO SEIKAN CO LTD (JP)
International Classes:
B65D65/30; B31B70/14; B31B70/88; B65D65/40
Foreign References:
| JP2004331087A | 2004-11-25 | |||
| JP2015013670A | 2015-01-22 | |||
| JP2019131287A | 2019-08-08 | |||
| JP2020128250A | 2020-08-27 |
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
Download PDF:
Previous Patent: SOLID-STATE IMAGING ELEMENT AND IMAGING DEVICE
Next Patent: AUTONOMOUS TRAVELING DEVICE AND AUTONOMOUS TRAVELING DEVICE CONTROL METHOD
Next Patent: AUTONOMOUS TRAVELING DEVICE AND AUTONOMOUS TRAVELING DEVICE CONTROL METHOD