Title:
ENVELOPE
Document Type and Number:
Japanese Patent JP2019182439
Kind Code:
A
Abstract:
To provide an envelope allowing quick solidification of a cold seal agent after coating on base material paper, and visual discrimination of an opened state.SOLUTION: In an envelope 1, adhesion layers 4a, 4b of a cold seal agent are provided on two space portions being sealing parts 5 on base material paper of the envelope 1, and the base material paper is folded between the space portions, to seal by pasting the adhesion layers 4a, 4b on the two portions with each other. The cold seal agent is a hot-melt resin, and when the sealing part 5 is opened, the adhesion layers 4a, 4b break the space at least partially and peel.SELECTED DRAWING: Figure 1
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Inventors:
TAKAO YUKIHIRO
YABE HIROSHI
YABE HIROSHI
Application Number:
JP2018071607A
Publication Date:
October 24, 2019
Filing Date:
April 03, 2018
Export Citation:
Assignee:
NIPPON KAGAKU KENKYUSHO KK
International Classes:
B65D27/14
Attorney, Agent or Firm:
Toshio Nishizawa
Taku Ando
Taku Ando