Title:
PACKAGING BAG FOR ALCOHOL-CONTAINING SUBSTANCE
Document Type and Number:
WIPO Patent Application WO/2018/021477
Kind Code:
A1
Abstract:
The present invention is a packaging bag for an alcohol-containing substance, the packaging bag being formed of a laminate including at least a base material layer, an adhesion layer, a barrier layer, an anchor coat layer, and a polyolefin resin layer stacked in this order, wherein: the barrier layer is aluminum foil or a deposited film formed by depositing an aluminum oxide or a silicon oxide on a base material film; the anchor coat layer is formed by applying an aqueous dispersion liquid in which a polyolefin copolymer resin is dispersed so that the number average particle diameter thereof becomes 1 μm or less and which is formed without containing a nonvolatile aquosity-imparting aid, to a surface of the barrier layer so that the thickness thereof becomes 0.1-2 μm when dried, followed by heating and drying; the polyolefin copolymer resin contains an unsaturated carboxylic acid or an anhydride thereof and a (meth)acrylic acid ester and has a specific melting point and a specific melt flow rate; and the polyolefin resin layer has good alcohol resistance, heat sealability, and hand-tearability, and is formed by a method in which a polyolefin resin is extruded to coat a surface of the anchor coat layer or by a method in which a polyolefin resin film is extruded and laminated using the same kind of polyolefin resin.
Inventors:
TAKASUGI YUYA (JP)
MATSUZAKI HIROSHI (JP)
ITO KATSUNOBU (JP)
MATSUZAKI HIROSHI (JP)
ITO KATSUNOBU (JP)
Application Number:
PCT/JP2017/027259
Publication Date:
February 01, 2018
Filing Date:
July 27, 2017
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B65D30/02; B32B27/00; B32B27/32; B65D65/40
Domestic Patent References:
| WO2013191191A1 | 2013-12-27 |
Foreign References:
| JP2008094471A | 2008-04-24 | |||
| JP2008162600A | 2008-07-17 | |||
| JP2008120062A | 2008-05-29 | |||
| JP2014091308A | 2014-05-19 | |||
| JP2016028856A | 2016-03-03 | |||
| US20040142182A1 | 2004-07-22 |
Attorney, Agent or Firm:
YUITA, Junji et al. (JP)
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