JP3769283B2 - 包装袋 - Google Patents
包装袋 Download PDFInfo
- Publication number
- JP3769283B2 JP3769283B2 JP2004065041A JP2004065041A JP3769283B2 JP 3769283 B2 JP3769283 B2 JP 3769283B2 JP 2004065041 A JP2004065041 A JP 2004065041A JP 2004065041 A JP2004065041 A JP 2004065041A JP 3769283 B2 JP3769283 B2 JP 3769283B2
- Authority
- JP
- Japan
- Prior art keywords
- packaging bag
- notch
- edge
- packaging
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Package Specialized In Special Use (AREA)
- Bag Frames (AREA)
- Packages (AREA)
Description
まず、上記の本発明において、内層の熱接着性樹脂層に用いる樹脂としては、密封性、自動包装機適性、易剥離性、とりわけ、耐油性、耐熱性の点からポリプロピレン系樹脂とポリエチレン系樹脂とオレフィン系共重合体ゴムとの混合樹脂が好適である。
図1は本発明にかかる包装袋の第1の実施形態の平面図、図2は図1のXーX線の断面図、図3は図1の加熱調理途中のXーX線の断面図、図4は図1の加熱調理完了時のXーX線の断面図、図5は本発明にかかる包装袋の1実施例を示す平面図であり、図中の1,1’,1”は包装袋、2,2’は熱接着部、3,3’,3”は張出部、4,4’,4”は切欠、5は背シール部、6は背部、40は剥離部、50は積層体、51は内層、53は外層をそれぞれ示す。
2 端縁辺熱接着部
3 張出部
4 切欠
40 剥離部
50 積層体
51 内層
53 外層
Claims (4)
- 内層に熱接着性樹脂層からなる包装材の端縁辺の全周に熱接着して密封した平面視上の端縁辺のみに熱接着部を有する包装袋において、前記包装袋の前記熱接着部の内側周縁部に連接して前記包装袋の内側に張り出して熱接着された前記熱接着部と略同じ強さの接着強度を有する張出部を少なくとも1箇所形成し、さらに前記張出部内に未接着部が形成されると共に、該未接着部に加熱時における内部圧力を逃がすための切目もしくは切欠が形成されていることを特徴とする包装袋。
- 前記切目もしくは切欠が前記張出部を構成する包装材を貫通して形成されていることを特徴とする請求項1記載の包装袋。
- 前記切目もしくは切欠が前記張出部を構成する対向した包装材の一方の包装材に形成されていることを特徴とする請求項1記載の包装袋。
- 前記包装袋において、前記張出部が包装袋の辺に形成されていることを特徴とする請求項1〜3のいずれかに記載の包装袋。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004065041A JP3769283B2 (ja) | 1997-11-19 | 2004-03-09 | 包装袋 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33499797 | 1997-11-19 | ||
JP2004065041A JP3769283B2 (ja) | 1997-11-19 | 2004-03-09 | 包装袋 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28761898A Division JP3872603B2 (ja) | 1997-11-19 | 1998-10-09 | 包装袋 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004168429A JP2004168429A (ja) | 2004-06-17 |
JP2004168429A5 JP2004168429A5 (ja) | 2005-05-26 |
JP3769283B2 true JP3769283B2 (ja) | 2006-04-19 |
Family
ID=32715369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004065041A Expired - Lifetime JP3769283B2 (ja) | 1997-11-19 | 2004-03-09 | 包装袋 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3769283B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7157612B2 (ja) * | 2018-10-01 | 2022-10-20 | 株式会社サンエー化研 | 加熱処理包装袋、加熱処理包装袋の製造方法及び電子レンジ用食品 |
-
2004
- 2004-03-09 JP JP2004065041A patent/JP3769283B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2004168429A (ja) | 2004-06-17 |
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