Title:
DEAERATION BAG
Document Type and Number:
WIPO Patent Application WO/2008/075416
Kind Code:
A1
Abstract:
A bag body (2) has a bag front side sheet (21) and a bag back side sheet (22) opposing
each other, and a gore sheet (23) arranged between the respective sheets (21,
22). A deaeration valve (3) fixed to the bag body (2) has opposing wall face sheets
made of a plastic film, is arranged at least between the bag front side sheet (21)
and the bag back side sheet (22) and is fixed to the bag body (2) when an end side seal
(S1) is formed. A seal (S2) for securing a valve is formed on and bonded to the inner
surface of any one of the bag front side sheet (21) and the bag back side sheet (22),
and at least a part of the seal (S2) for securing a valve is formed closely to the
upstream end (3a) of the deaeration valve (3) with reference to the direction
of air flow during deaeration and within a range of one half of the distance (L1)
from the upstream end (3a) to the end side seal (S1).
Inventors:
TANAKA MIKIO (JP)
Application Number:
PCT/JP2006/325347
Publication Date:
June 26, 2008
Filing Date:
December 20, 2006
Export Citation:
Assignee:
TANAKA MIKIO (JP)
International Classes:
B65D33/01; B65D30/24; B65D33/36
Foreign References:
| JP2003034339A | 2003-02-04 | |||
| JPS6062040U | 1985-04-30 | |||
| JPH01294027A | 1989-11-28 | |||
| JPS6299534U | 1987-06-25 | |||
| JPH0672449A | 1994-03-15 |
Attorney, Agent or Firm:
SAMEJIMA, Takenobu (1-2-13 Shinmachi, Nishi-k, Osaka-shi Osaka 13, JP)
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