Title:
FOLD-OPEN PACKAGE AND METHOD FOR MANUFACTURING FOLD-OPEN PACKAGE
Document Type and Number:
WIPO Patent Application WO/2018/025917
Kind Code:
A1
Abstract:
The purpose of this invention is to provide a fold-open package and a method for manufacturing a fold-open package, whereby sealing of an opening part by a sealing material is not removed until folding to a predetermined folding angle or less occurs, and contents enclosed in a package body can be prevented from leaking to the outside. In manufacturing a sheet member (20) used in a fold-open package (10A), when a notch providing step (a) for providing a notch (23) in the surface of a sheet base material (200) and a sealing material press-cutting/pressure-joining step for pressure-joining a sealing material (40) press-cut and separated from a sealing base material (400) to the surface of the sheet base material (200) so as to cover the notch (23) are performed in sequence, a peripheral edge part (40b) of the sealing material (40) is caused to sink into the surface of the sheet member (20) to a predetermined depth D1, and a protruding part (24) lower than the wall thickness E1 of the sealing material (40) protruding outward from the surface of the sheet member (20) is formed along the peripheral edge part (40b) of the sealing material (40) so as to extend along the entire periphery of the peripheral edge part (40b).
Inventors:
HASHIMOTO TADASHI (JP)
HASHIMOTO HISASHI (JP)
HASHIMOTO HISASHI (JP)
Application Number:
PCT/JP2017/028085
Publication Date:
February 08, 2018
Filing Date:
August 02, 2017
Export Citation:
Assignee:
FUTURE LABO CO LTD (JP)
International Classes:
B65D75/62; B65B9/04; B65B47/04; B65B61/18; B65D83/00
Foreign References:
| JP2014198601A | 2014-10-23 | |||
| JPH0577866A | 1993-03-30 | |||
| JP2013184716A | 2013-09-19 | |||
| JP2015020803A | 2015-02-02 |
Other References:
See also references of EP 3348492A4
Attorney, Agent or Firm:
NAGATA Motoaki et al. (JP)
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