Title:
包装材の製造方法
Document Type and Number:
Japanese Patent JP6948776
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a packaging material capable of improving the productivity while significantly shortening a lead time, and ensuring excellent moldability as well.SOLUTION: The method comprises a baking layer formation step of coating a treating solution 64 containing the acid-modified polyolefin onto one surface of a metal foil 4 and then forming an acid-modified polyolefin baking layer by heating to obtain a first laminate 48, an inner layer formation step of attaching a thermally fusible resin film 3 onto a surface of a baking layer of the first laminate 48 via an extrusion melt resin film 47 extruded from an extruder 40 to obtain a second laminate 49, and an outer layer formation step of attaching the substrate layer resin film 2 onto the other surface of the metal foil 4 of the second laminate 49 via an electron beam curable resin composition 44 to obtain a third laminate 50, and then irradiating the third laminate 50 with an electron beam from the side of a substrate layer resin film 2.SELECTED DRAWING: Figure 1
Inventors:
How way
Terutoshi Kumaki
Takashi Nagaoka
Makoto Karatsu
Terutoshi Kumaki
Takashi Nagaoka
Makoto Karatsu
Application Number:
JP2016200855A
Publication Date:
October 13, 2021
Filing Date:
October 12, 2016
Export Citation:
Assignee:
Showa Denko Packaging Co., Ltd.
International Classes:
B29C65/52; B32B15/08; B32B37/12; B32B38/18; B65D65/40
Domestic Patent References:
| JP2012115994A | ||||
| JP2015135739A | ||||
| JP2006331897A | ||||
| JP2013254195A | ||||
| JP2002197729A |
Foreign References:
| WO2014208518A1 |
Attorney, Agent or Firm:
Yoshihito Shimizu
Hisayoshi Shimizu
Ken Takada
Hisayoshi Shimizu
Ken Takada