JPH0633095B2 - Synthetic resin film for zipper bag - Google Patents
Synthetic resin film for zipper bagInfo
- Publication number
- JPH0633095B2 JPH0633095B2 JP63229792A JP22979288A JPH0633095B2 JP H0633095 B2 JPH0633095 B2 JP H0633095B2 JP 63229792 A JP63229792 A JP 63229792A JP 22979288 A JP22979288 A JP 22979288A JP H0633095 B2 JPH0633095 B2 JP H0633095B2
- Authority
- JP
- Japan
- Prior art keywords
- resin film
- chuck
- stretched
- tape
- film
- 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 - Fee Related
Links
- 229920003002 synthetic resin Polymers 0.000 title claims description 8
- 239000000057 synthetic resin Substances 0.000 title claims description 8
- 229920005989 resin Polymers 0.000 claims description 32
- 239000011347 resin Substances 0.000 claims description 32
- 238000003466 welding Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 description 17
- 239000010410 layer Substances 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Bag Frames (AREA)
- Making Paper Articles (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は、各種の物品を包装するチャック付袋体の製造
用合成樹脂製フィルムに関する。TECHNICAL FIELD The present invention relates to a synthetic resin film for producing a bag with a zipper for packaging various articles.
＜従来の技術＞ 開口部に再開閉可能なチャックを備えた合成樹脂製袋体
は周知である。<Prior Art> A synthetic resin bag having a re-openable / closable chuck at its opening is well known.
この袋体を形成するための素材である合成樹脂製フィル
ムは、無延伸フィルム材を押出機のダイスリットよりフ
ラット状フィルムを押出し成形し、他方チャック条を同
一ダイスの別のスリットより押出して両者の保有熱によ
りチャック条をフラット状フィルムの所定個所に溶着し
たものや、無延伸フィルム材とチャック条とを別個に成
形し、無延伸フィルム材の所定個所にチャック条のベー
ス部を加熱手段により加熱して溶着したものが用いられ
ている。Synthetic resin film, which is the material for forming this bag, is a non-stretched film material extruded into a flat film through a die slit of an extruder, while the chuck strip is extruded through another slit of the same die. The chuck strips are welded to the flat film at predetermined locations by the heat of the film, or the unstretched film material and the chuck strips are molded separately, and the base of the chuck strips is heated at the predetermined locations of the unstretched film material by heating means. What is heated and welded is used.
従って、上記何れにおいても無延伸フィルム材にチャッ
ク条が溶着されている。これは、熱収縮性の高い延伸フ
ィルム材にチャック条を溶着した場合は、前記の溶着加
熱温度によりフィルム材が熱収縮を起こしてしまい、ま
たチャック条もその収縮のために歪みやねじれるなど変
形して咬合機能が失われてしまうために延伸フィルム材
にチャック条を溶着することは避けねばならないからで
ある。Therefore, in any of the above, the chuck strip is welded to the non-stretched film material. This is because when a chuck strip is welded to a stretched film material having high heat shrinkability, the film material causes thermal shrinkage due to the above-mentioned welding heating temperature, and the chuck strip is also deformed such as distorted or twisted due to the shrinkage. It is necessary to avoid welding the chuck strip to the stretched film material because the occlusal function is lost.
また、延伸フィルム材と無延伸フィルム材とをラミネー
トしたフィルム材の無延伸フィルム材側にチャック条を
溶着してチャック付袋体を形成するなどの手段もある
が、この場合は極めてコストの高い製品を提供すること
になるのでユーザーにとってもメーカーにとっても不利
益な製品となっている。There is also a means of forming a bag with a chuck by welding a chuck strip to the non-stretched film material side of a film material obtained by laminating a stretched film material and a non-stretched film material, but in this case, the cost is extremely high. Since it provides products, it is a disadvantage for both users and manufacturers.
＜発明が解決しようとする課題＞ 無延伸フィルム材は押出し成形されたままの状態のフィ
ルムであり、一般に透明度，バリヤ性に難点がある。し
かし延伸フィルム材は、押出し成形されたものに対し張
力を付与して延伸したものであるから非常に透明度，バ
リヤ性が良好である。ところが、前記のようにチャック
条を熱溶着すると収縮し、その収縮の影響を受けてチャ
ック条も変形するため、延伸フィルム材によるチャック
付袋体を形成することができなかった。<Problems to be Solved by the Invention> An unstretched film material is a film in an as-extruded state and generally has problems in transparency and barrier properties. However, since the stretched film material is stretched by applying tension to an extruded material, it has very good transparency and barrier properties. However, when the chuck strips are heat-sealed as described above, the chuck strips are deformed and the chuck strips are also deformed under the influence of the shrinkage, so that it is not possible to form a zipper bag with a stretched film material.
＜課題を解決するための手段＞ 本発明は、上記の問題点を解決するためになされたもの
で、その特徴とする構成は、延伸形成された樹脂フィル
ムの長手方向の所定個所に無延伸樹脂フィルムよりなる
２条のテープを超音波または高周波等のマイクロ波接着
手段によりテープ面内において極小スポット接合し、こ
のテープ層に雌雄爪型樹脂製のチャック条の基部を熱溶
着したものである。<Means for Solving the Problems> The present invention has been made to solve the above-mentioned problems, and a characteristic feature thereof is that an unstretched resin is provided at a predetermined position in a longitudinal direction of a stretched resin film. A two-piece tape made of a film is subjected to a minimum spot bonding on the tape surface by means of a microwave bonding means such as ultrasonic waves or high frequencies, and the base of a male / female nail-type resin chuck stripe is heat-welded to this tape layer.
＜作 用＞ 本発明は上記の構成により、無延伸樹脂フィルムのテー
プ層にチャック条を熱溶着してもテープを延伸樹脂フィ
ルムに接合している超音波または高周波等のマイクロ波
による接合面積を制限した極小スポット形態により熱を
分離，分散し延伸樹脂フィルムへの熱伝導を微温，極小
にしているので、延伸樹脂フィルムの熱収縮がなく良好
なチャック付袋体の製造を可能にしたものである。<Operation> With the above-described structure, the present invention has a bonding area by ultrasonic waves or high-frequency microwaves that bonds the tape to the stretched resin film even if the zipper strip is heat-welded to the tape layer of the non-stretched resin film. Since the heat is separated and dispersed by the limited ultra-small spot form and the heat conduction to the stretched resin film is kept at a very low temperature, the stretched resin film does not undergo heat shrinkage, which makes it possible to manufacture a good bag with a chuck. is there.
＜実施例＞ 以下本発明の実施例を図面に基づいて説明する。第１図
において、１は延伸樹脂フィルムである。この延伸樹脂
フィルム１は、その長手方向Ｙ並びに幅方向Ｘの２軸方
向に張力を付与して延伸されたものである。<Examples> Examples of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a stretched resin film. The stretched resin film 1 is stretched by applying tension in the biaxial directions of the longitudinal direction Y and the width direction X.
前記延伸樹脂フィルム１の長手方向Ｙの所定個所に無延
伸樹脂フィルムよりなる２条のテープ２を超音波または
高周波等のマイクロ波接着手段によってスポット接合５
する。Spot joining of two strips of tape 2 made of a non-stretched resin film to a predetermined portion of the stretched resin film 1 in the longitudinal direction Y by means of microwave bonding such as ultrasonic waves or high frequencies
To do.
このマイクロ波接着手段によるスポット接合５の形態は
第４図で示すように、点，筋目，ミシン目，格子状，横
線，丸等の接着面積を極小に制限したスポット的な接着
形状である。As shown in FIG. 4, the form of the spot joining 5 by this microwave adhering means is a spot-like adhering shape in which the adhering area such as dots, streaks, perforations, grids, horizontal lines, circles, etc. is restricted to a minimum.
さらに、このそれぞれのテープ２の層上に雄爪チャック
条３及び雌爪チャック条４の基部3a，4aを熱溶着したも
のである。Further, the base portions 3a, 4a of the male jaw chuck strip 3 and the female jaw chuck strip 4 are heat-welded on the respective layers of the tape 2.
また、前記テープ２の幅Ｂを雄，雌爪チャック条３，４
の基部3a，4aの幅B1に対して同等以上の幅とし、テープ
２を低温シール性フィルムとすることが望ましい。In addition, the width B of the tape 2 is set to the male and female claw chuck strips 3, 4
It is desirable that the tape 2 be a low temperature sealable film with a width equal to or larger than the width B1 of the base portions 3a and 4a.
上記構成のフィルム材により袋体を成形する場合は、延
伸樹脂フィルム１の幅方向Ｘの中央Ｏ−Ｏで二つ折りと
し第２図で示すように長手方向Ｙの所定間隔でＺ−Ｚ線
方向に溶着切断することにより開口部にチャックを備え
た単体の袋体を得る。In the case of forming a bag body with the film material having the above-mentioned configuration, the stretched resin film 1 is folded in two at the center OO in the width direction X, and as shown in FIG. A single bag body having a chuck at the opening is obtained by welding and cutting.
なお、第３図で示すように、テープ２の幅B1を開口端縁
まで延伸し、開口端縁を摘み易くすることも可能であ
る。As shown in FIG. 3, the width B1 of the tape 2 can be extended to the opening edge so that the opening edge can be easily picked.
＜発明の効果＞ 本発明は、以上述べたように延伸された熱収縮性のある
樹脂フィルムにチャック条の加熱による溶着を可能にす
るために、無延伸樹脂フィルムのテープでチャック条に
おける接着基部の幅よりも広幅状の樹脂フィルムを超音
波または高周波のマイクロ波接着手段により接合面積を
限定した極小スポット形態にして接合しているので熱伝
導がなく、延伸樹脂フィルムにおける熱収縮を防止した
接合を可能にしているものである。<Effects of the Invention> The present invention uses a tape of an unstretched resin film to adhere to the stretched heat-shrinkable resin film by heating the chuck strip, as described above, in order to enable welding. The width of the resin film wider than the width is bonded by ultrasonic or high-frequency microwave bonding means in the form of a minimal spot that limits the bonding area, so there is no heat conduction and bonding that prevents thermal contraction in the stretched resin film. Is what makes it possible.
次いで、前記無延伸樹脂フィルムのテープ層にチャック
条の基部を熱溶着するのであるが、この溶着熱はテープ
のフィルム層に止まり、延伸樹脂フィルム層には至らな
いので延伸樹脂フィルム層が熱収縮を起こすようなこと
はない。Next, the base of the chuck strip is heat-welded to the tape layer of the non-stretched resin film, but the heat of welding stops at the film layer of the tape and does not reach the stretched resin film layer, so the stretched resin film layer undergoes heat shrinkage. It does not cause
また、それゆえにチャック条も延伸樹脂フィルム収縮の
影響をうけることなく正常な接着形態が保持されるの
で、変形のない正常な咬合機能を維持することができ
る。Therefore, since the chuck strips also maintain the normal bonding form without being affected by the contraction of the stretched resin film, the normal occlusal function without deformation can be maintained.
また、さらに、接着層である無延伸樹脂のテープの横幅
がチャック条における接着部である基部の幅よりも広幅
であるために、両者を接着する工程においてチャック条
が横振れしたり（押出機よりチャック条を押出した場
合）、あるいは加熱手段の位置が横ずれした場合も前記
それぞれの溶着熱をテープ層内に止めることができるの
で延伸樹脂フィルム層が熱収縮を起こすことはない。Further, since the width of the non-stretched resin tape, which is the adhesive layer, is wider than the width of the base portion, which is the adhesive portion of the chuck strip, the chuck strip may shake sideways in the step of bonding the two (extruder). Even when the chuck strip is extruded), or when the position of the heating means is laterally displaced, the respective heats of welding can be stopped in the tape layer, so that the stretched resin film layer does not cause heat shrinkage.
また、前記のごとく接着ベース部である無延伸樹脂テー
プ層の幅がチャック条における接着基部の幅よりも広い
ので、横振れを伴いがちなスピーディな接着工法を行っ
た場合も溶着熱が延伸樹脂フィルム層に及ぶことがない
ので、延伸樹脂フィルムにおける収縮が防止される。Further, as described above, since the width of the non-stretched resin tape layer which is the adhesive base portion is wider than the width of the adhesive base portion in the chuck strip, the heat of welding does not affect the stretched resin even when the speedy bonding method, which is apt to cause lateral shake, is performed. Since it does not extend to the film layer, shrinkage in the stretched resin film is prevented.
第１図は本発明による合成樹脂フィルムの斜視図、第２
図及び第３図は本発明のフィルムによる製袋の説明図、
第４図はスポット接合形態を示す図である。 １……延伸樹脂フィルム、２……無延伸樹脂フィルムよ
りなるテープ、３……雄爪チャック条、４……雌爪チャ
ック条、3a，4a……基部、５……スポット接合。FIG. 1 is a perspective view of a synthetic resin film according to the present invention, and FIG.
FIG. 3 and FIG. 3 are explanatory views of bag making using the film of the present invention,
FIG. 4 is a diagram showing a spot joining mode. 1 ... Stretched resin film, 2 ... Tape made of non-stretched resin film, 3 ... Male claw chuck strips, 4 ... Female claw chuck strips, 3a, 4a ... Base part, 5 ... Spot joining.
Claims (3)
所定個所に無延伸樹脂フィルムよりなる２条のテープを
超音波または高周波等のマイクロ波接着手段によりテー
プ面内において極小スポット接合し、このテープ層に雌
雄爪型樹脂製のチャック条の基部を熱溶着したことを特
徴とするチャック付袋体用の合成樹脂製フィルム。1. A two-piece tape made of a non-stretched resin film is bonded at a predetermined spot in the longitudinal direction of a stretched resin film by means of ultrasonic or high-frequency microwave adhering to the spot in the tape surface. A synthetic resin film for a bag body with a chuck, characterized in that a base of a zipper strip made of a male and female nail type resin is heat-welded to a tape layer.
幅をチャック条の溶着基部の幅に対して同等以上の幅と
した請求項１記載のチャック付袋体用の合成樹脂製フィ
ルム。2. The synthetic resin film for a bag with a chuck according to claim 1, wherein the width of the tape made of the unstretched resin film is equal to or more than the width of the welding base of the chuck strip.
低温シール性フィルムとした請求項１記載のチャック付
袋体用の合成樹脂製フィルム。3. A synthetic resin film for a bag with a zipper according to claim 1, wherein the tape made of the non-stretched resin film is a low temperature sealable film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63229792A JPH0633095B2 (en) | 1988-09-16 | 1988-09-16 | Synthetic resin film for zipper bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63229792A JPH0633095B2 (en) | 1988-09-16 | 1988-09-16 | Synthetic resin film for zipper bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0285162A JPH0285162A (en) | 1990-03-26 |
| JPH0633095B2 true JPH0633095B2 (en) | 1994-05-02 |
Family
ID=16897744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63229792A Expired - Fee Related JPH0633095B2 (en) | 1988-09-16 | 1988-09-16 | Synthetic resin film for zipper bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633095B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3176484B2 (en) * | 1993-07-09 | 2001-06-18 | 株式会社細川洋行 | Gusseted bag with zipper and method of manufacturing the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2948914A1 (en) * | 1978-12-22 | 1980-06-26 | Union Carbide Corp | CONTAINER |
-
1988
- 1988-09-16 JP JP63229792A patent/JPH0633095B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0285162A (en) | 1990-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |