JP2001114296A - Bag - Google Patents
BagInfo
- Publication number
- JP2001114296A JP2001114296A JP28852499A JP28852499A JP2001114296A JP 2001114296 A JP2001114296 A JP 2001114296A JP 28852499 A JP28852499 A JP 28852499A JP 28852499 A JP28852499 A JP 28852499A JP 2001114296 A JP2001114296 A JP 2001114296A
- Authority
- JP
- Japan
- Prior art keywords
- bag
- bottom film
- film
- side seal
- back films
- 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.)
- Pending
Links
Landscapes
- Bag Frames (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は袋に関する。The present invention relates to a bag.
【0002】[0002]
【従来の技術】液体や粉体を収容する袋として、図3に
示す如く、表裏のフィルム1、2の間に2つ折りした底
フィルム3を挟み、表裏のフィルム1、2の内面と底フ
ィルム3の内面とを、底フィルム3の折り目部3Aに沿
う一定範囲(底形成部4)を除く範囲で接着して底シー
ル部5とするとともに、表裏のフィルム1、2の内面同
士を接着してサイドシール部6とするものがある。2. Description of the Related Art As a bag for accommodating a liquid or powder, as shown in FIG. 3, a bottom film 3 folded in two is sandwiched between front and back films 1 and 2, and inner surfaces of the front and back films 1 and 2 and a bottom film are formed. 3 is bonded to the inner surface of the bottom film 3 in a range excluding a certain range (the bottom forming portion 4) along the fold 3A of the bottom film 3 to form the bottom seal portion 5, and the inner surfaces of the front and back films 1 and 2 are bonded together. Side seal portion 6.
【0003】[0003]
【発明が解決しようとする課題】従来技術では、底フィ
ルム3の折り目部3Aに交差する底シール部5の交点P
を、サイドシール部6にも交差させている。このため、
袋を落した際に底形成部4に作用する落下衝撃力Fは直
ちにP点に及ぶが、このP点はサイドシール部6に含ま
れていて剛性が高く、撓みにくいために破損してピンホ
ールを生ずる虞がある。このため、袋の構成フィルムを
薄肉化できない等、構成材料の選定に困難がある。In the prior art, the intersection P of the bottom seal 5 intersecting the fold 3A of the bottom film 3 is known.
Are also intersected with the side seal portion 6. For this reason,
When the bag is dropped, the drop impact force F acting on the bottom forming portion 4 immediately reaches point P. This point P is included in the side seal portion 6 and has high rigidity and is hardly bent, so that the pin is damaged and damaged. There is a possibility that a hole is generated. For this reason, it is difficult to select a constituent material, for example, the thickness of the constituent film of the bag cannot be reduced.
【0004】本発明の課題は、袋の落下強度を向上する
ことにある。An object of the present invention is to improve the drop strength of a bag.
【0005】[0005]
【課題を解決するための手段】請求項1に記載の本発明
は、表裏のフィルムの間に2つ折りした底フィルムを挟
み、表裏のフィルムの内面と底フィルムの内面とを該底
フィルムの折り目部に沿う一定範囲を除く範囲を接着し
て底シール部を形成するとともに、表裏のフィルムの内
面同士を接着してサイドシール部を形成してなる袋であ
って、底フィルムの折り目部に交差する底シール部の交
点を、サイドシール部より袋内側に設定した。According to the first aspect of the present invention, a two-folded bottom film is sandwiched between front and back films, and the inner surface of the front and back films and the inner surface of the bottom film are creased on the bottom film. A bag formed by adhering a part except a certain range along the part to form a bottom seal part and adhering the inner surfaces of the front and back films to form a side seal part, intersecting the fold part of the bottom film. The intersection of the bottom seal part to be set was set inside the bag from the side seal part.
【0006】[0006]
【発明の実施の形態】袋10は、図1に示す如く、表裏
のフィルム11、12の間に2つ折りした底フィルム1
3を挟み、表裏のフィルム11、12の内面と底フィル
ム13の内面とを、底フィルム13の折り目部13Aに
沿う一定範囲(底形成部14)を除く範囲で接着して底
シール部15とするとともに、表裏のフィルム11、1
2の内面同士を接着してサイドシール部16としたもの
である。DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a bag 10 has a bottom film 1 folded in two between front and back films 11 and 12. As shown in FIG.
3, the inner surfaces of the front and back films 11 and 12 and the inner surface of the bottom film 13 are adhered to each other in a range excluding a certain range (bottom forming portion 14) along the fold portion 13A of the bottom film 13 to form a bottom seal portion 15 And the front and back films 11, 1
2 are adhered to each other to form a side seal portion 16.
【0007】図2は、製袋機による袋10の製造手順で
あり、長尺の表裏のフィルム11、12の間に長尺の底
フィルム13を挿入する工程と、相隣る袋10のための
底シール部15とサイドシール部16を連続的に形成す
る工程と、相隣る袋10のサイドシール部16をカット
して各1個の袋10を取出す工程とからなる。FIG. 2 shows a manufacturing procedure of the bag 10 by the bag making machine, in which a long bottom film 13 is inserted between the long front and back films 11 and 12, And a step of continuously forming the bottom seal portion 15 and the side seal portion 16 of each other, and a process of cutting out the side seal portions 16 of the adjacent bags 10 to take out each one bag 10.
【0008】然るに、図1の袋10にあっては、底シー
ル部15とサイドシール部16の形成に際し、底フィル
ム13の折り目部13Aに交差する底シール部15の交
点Rを、サイドシール部16より袋内側に長さLだけ離
隔させている。However, in the bag 10 of FIG. 1, when forming the bottom seal portion 15 and the side seal portion 16, the intersection R of the bottom seal portion 15 intersecting the fold portion 13A of the bottom film 13 is determined by the side seal portion. The length L is spaced apart from the inside of the bag by a length L.
【0009】これにより、本実施形態によれば以下の作
用がある。即ち、袋10を落した際に底形成部14に作
用する落下衝撃力Fは、底フィルム13の折り目部13
Aが表裏のフィルム11、12に接着されて底シール部
15を形成している部分Lの撓みによって緩和され、そ
の後、その折り目部13Aが交差するサイドシール部1
6との交点Pで支持される。P点は剛性が高いが、P点
に作用する力Faは既に緩和されていて、破損を生じに
くい。このため、袋10の構成フィルムを、薄肉化でき
る等、構成材料の選定が容易になる。Thus, according to the present embodiment, the following operations are provided. That is, when the bag 10 is dropped, the drop impact force F acting on the bottom forming portion 14 is equal to the fold 13 of the bottom film 13.
A is adhered to the front and back films 11 and 12 and is alleviated by bending of the portion L forming the bottom seal portion 15, and then the side seal portion 1 at which the fold portion 13A intersects.
6 at the intersection P. Although the point P has high rigidity, the force Fa acting on the point P has already been reduced, and it is unlikely to cause breakage. For this reason, selection of a constituent material becomes easy, for example, the constituent film of the bag 10 can be thinned.
【0010】尚、表裏のフィルム11、12と底フィル
ム13の構成材料は以下の如くである。即ち、表裏のフ
ィルム11、12と底フィルム13とも、外層フィルム
と内層フィルムとをラミネート接着剤にてラミネートし
て構成される。外層フィルムは、耐熱性を備えた樹脂フ
ィルムであり、例えば(2軸)延伸ポリエチレンテレフ
タレート、(2軸)延伸ナイロン或いは(2軸)延伸ポ
リプロピレンが好ましい。また、内層フィルムは、液体
や粉体等の充填物に対する高いシール性を備え、且つ熱
融着性を備えた樹脂フィルムであり、例えば低密度ポリ
エチレンや中密度ポリエチレンが好ましい。The constituent materials of the front and back films 11, 12 and the bottom film 13 are as follows. That is, both the front and back films 11, 12 and the bottom film 13 are formed by laminating an outer layer film and an inner layer film with a laminating adhesive. The outer layer film is a resin film having heat resistance, and is preferably, for example, (biaxially) stretched polyethylene terephthalate, (biaxially) stretched nylon or (biaxially) stretched polypropylene. Further, the inner layer film is a resin film having a high sealing property with respect to a filler such as a liquid or a powder and having a heat-sealing property. For example, low-density polyethylene and medium-density polyethylene are preferable.
【0011】[0011]
【発明の効果】以上のように本発明によれば、袋の落下
強度を向上できる。As described above, according to the present invention, the drop strength of the bag can be improved.
【図1】図1は袋を示す模式図である。FIG. 1 is a schematic view showing a bag.
【図2】図2は袋の製造手順を示す模式図である。FIG. 2 is a schematic view showing a procedure for manufacturing a bag.
【図3】図3は従来例を示す模式図である。FIG. 3 is a schematic diagram showing a conventional example.
10 袋 11、12 表裏のフィルム 13 底フィルム 13A 折り目部 15 底シール部 16 サイドシール部 Reference Signs List 10 bags 11, 12 Front and back films 13 Bottom film 13A Folded part 15 Bottom seal part 16 Side seal part
Claims (1)
ィルムを挟み、表裏のフィルムの内面と底フィルムの内
面とを該底フィルムの折り目部に沿う一定範囲を除く範
囲を接着して底シール部を形成するとともに、表裏のフ
ィルムの内面同士を接着してサイドシール部を形成して
なる袋であって、 底フィルムの折り目部に交差する底シール部の交点を、
サイドシール部より袋内側に設定してなる袋。1. A bottom seal in which a folded bottom film is sandwiched between front and back films, and an inner surface of the front and back films and an inner surface of the bottom film are adhered to each other in a range excluding a certain range along a fold portion of the bottom film. A bag formed by bonding the inner surfaces of the front and back films together to form a side seal portion, wherein the intersection of the bottom seal portion crossing the fold portion of the bottom film is
A bag set inside the bag from the side seal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28852499A JP2001114296A (en) | 1999-10-08 | 1999-10-08 | Bag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28852499A JP2001114296A (en) | 1999-10-08 | 1999-10-08 | Bag |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001114296A true JP2001114296A (en) | 2001-04-24 |
Family
ID=17731362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28852499A Pending JP2001114296A (en) | 1999-10-08 | 1999-10-08 | Bag |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2001114296A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014061915A (en) * | 2012-09-21 | 2014-04-10 | Toppan Printing Co Ltd | Self-supporting packaging bag |
WO2022092237A1 (en) * | 2020-10-30 | 2022-05-05 | 藤森工業株式会社 | Packaging bag |
-
1999
- 1999-10-08 JP JP28852499A patent/JP2001114296A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014061915A (en) * | 2012-09-21 | 2014-04-10 | Toppan Printing Co Ltd | Self-supporting packaging bag |
WO2022092237A1 (en) * | 2020-10-30 | 2022-05-05 | 藤森工業株式会社 | Packaging bag |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050228 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050308 |
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A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050630 |