Title:
METHOD FOR PRODUCING LAMINATED FILM, LAMINATED FILM, AND PACKAGING CONTAINER
Document Type and Number:
WIPO Patent Application WO/2023/176345
Kind Code:
A1
Abstract:
Provided are: a method for producing a laminated film capable of reducing environmental impact and capable of suppressing the occurrence of air bubbles in the adhesive layer; a laminated film; and a packaging container. In the method for producing a laminated film, the viscosity of the solventless adhesive is 700-2000 mPa∙s at 50°C; the coating device is further equipped with a coating unit having a pair of rolls, a plurality of transfer rolls for sequentially transferring and supplying the solventless adhesive, and an application roll arranged facing, across a tiny clearance, a doctor roll positioned at the solventless adhesive supply start side end of the plurality of transfer rolls; and the circumferential speed of the doctor roll is characterized by being 1.0-10.0 m/min.
Inventors:
GOTOU OSAMU (JP)
SAEKI MAYUMI (JP)
HARA TAKUYA (JP)
ITOU YUSUKE (JP)
SAEKI MAYUMI (JP)
HARA TAKUYA (JP)
ITOU YUSUKE (JP)
Application Number:
PCT/JP2023/006458
Publication Date:
September 21, 2023
Filing Date:
February 22, 2023
Export Citation:
Assignee:
TOYO SEIKAN CO LTD (JP)
International Classes:
B05D1/28; B29C63/02; B29C65/48; B32B27/00; B32B37/12; B65D65/40; C09J11/06; C09J167/00
Domestic Patent References:
| WO2019082683A1 | 2019-05-02 |
Foreign References:
| JP2016129872A | 2016-07-21 | |||
| JP2010031105A | 2010-02-12 | |||
| JP5397584B2 | 2014-01-22 | |||
| JP2008012446A | 2008-01-24 | |||
| JP2014240034A | 2014-12-25 |
Attorney, Agent or Firm:
FUJIMOTO Nobuo et al. (JP)
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