JPS6221589Y2 - - Google Patents
Info
- Publication number
- JPS6221589Y2 JPS6221589Y2 JP16504079U JP16504079U JPS6221589Y2 JP S6221589 Y2 JPS6221589 Y2 JP S6221589Y2 JP 16504079 U JP16504079 U JP 16504079U JP 16504079 U JP16504079 U JP 16504079U JP S6221589 Y2 JPS6221589 Y2 JP S6221589Y2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- soft plastic
- airtight
- flexible container
- plastic layer
- 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
Links
- 229920003023 plastic Polymers 0.000 claims description 16
- 239000004033 plastic Substances 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 5
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 5
- 239000002759 woven fabric Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 description 14
- 239000007789 gas Substances 0.000 description 8
- 229920006255 plastic film Polymers 0.000 description 5
- 239000002985 plastic film Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 241001474374 Blennius Species 0.000 description 1
- 240000008620 Fagopyrum esculentum Species 0.000 description 1
- 235000009419 Fagopyrum esculentum Nutrition 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Bag Frames (AREA)
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
本考案は、平織布を基布としてその両面に軟質
プラスチツク層を設けたサンドイツチ構造のシー
トを基材として構成される可撓性コンテナーの改
良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a flexible container constructed of a sheet having a sandwich structure in which a plain woven fabric is used as a base fabric and soft plastic layers are provided on both sides.
可撓性コンテナーは、粉粒体のバルク輸送によ
る物流合理化のための包装材として広く使用され
ているが、その材質並びに構造の面から外気との
気密性は期待できず、外気との接触により品質変
化を生ずる被収容物には使用できない欠点があ
る。外気との接触により品質変化を生ずる被収容
物の例としては、吸湿性を有するナイロンチツ
プ、ビニロンチツプ、触媒等の化学物質、茶、の
り、そべ粉等の食品類、そして呼吸作用する米や
麦等の穀物類が挙げられる。 Flexible containers are widely used as packaging materials to streamline the logistics of transporting powder and granular materials in bulk, but due to their material and structure, they cannot be expected to be airtight from the outside air, and may be damaged by contact with the outside air. It has the disadvantage that it cannot be used for objects that change in quality. Examples of contained materials whose quality changes due to contact with outside air are hygroscopic nylon chips, vinylon chips, chemical substances such as catalysts, foods such as tea, seaweed, and buckwheat flour, and rice and other materials that have a respiration effect. Examples include grains such as wheat.
被収容物の品質変化は吸湿、吸着、膨潤等の物
理的作用、酸化、還元、発酵等の化学的作用、被
包装物自体の生理的作用によつて生じ、包装材を
拡散、透過又は漏洩する酸素や水蒸気等のガス、
或いは包装材内からの分子の移行現象等により促
進される。したがつて、被収容物の品質保持機能
を発揮できるようにするためには、可撓性コンテ
ナーは上記各種ガスに対する気密性保持機能をも
つていることが必要となる。 Changes in the quality of the packaged items occur due to physical effects such as moisture absorption, adsorption, and swelling, chemical effects such as oxidation, reduction, and fermentation, and physiological effects of the packaged items themselves, and may occur due to diffusion, permeation, or leakage through the packaging material. gases such as oxygen and water vapor,
Alternatively, it is promoted by the phenomenon of migration of molecules from within the packaging material. Therefore, in order to maintain the quality of the contained material, the flexible container must have the ability to maintain airtightness against the various gases mentioned above.
本考案者等は、軟質複合材料の基本的機能を損
なわずに前述した如き各種ガスに対し気密性を有
するコンテナーとして、平織布を基布としてその
両面に軟質プラスチツク層を説けたサンドイツチ
構造のシート（以下ターポリンシートという）の
少なくとも片面に気密性プラスチツクフイルム
（以下ガスバリア性プラスチツクフイルムとい
う）を積層し、このガスバリア性プラスチツクフ
イルムによつて形成した気密層が内面層となるよ
うに構成した可撓性コンテナーを既に考案（実開
昭56−10089号公報）している。 The inventors of the present invention proposed a sandwich structure with a plain woven fabric as a base fabric and soft plastic layers on both sides as a container that is airtight against the various gases mentioned above without impairing the basic functions of the soft composite material. A flexible sheet (hereinafter referred to as a tarpaulin sheet) in which an airtight plastic film (hereinafter referred to as a gas barrier plastic film) is laminated on at least one side, and the airtight layer formed by this gas barrier plastic film serves as an inner layer. A sex container has already been devised (Utility Model Application Publication No. 10089/1989).
ところが、上記実開昭56−10089号公報に見ら
れる可撓性コンテナーは、ターポリンシートの外
層としてガスバリア性プラスチツクフイルムを積
層してあり、加工時に過溶融によるフイルムの損
傷、他物との接触による損傷（すり切れ）等が危
惧される。また、被収容物との接触や繰り返し使
用による耐久性の低下、或いはコンテナーを作製
する際、包装基材同士を重ね合わせて融着すると
きにターポリンシートとガスバリア性プラスチツ
クフイルムとが異種材料のため、同種材料に比較
して融着強度の低下がある。 However, the flexible container seen in the above-mentioned Japanese Utility Model Publication No. 56-10089 has a gas barrier plastic film laminated as an outer layer of a tarpaulin sheet, and the film is damaged during processing due to over-melting and due to contact with other objects. There is a risk of damage (wearing out), etc. In addition, durability may deteriorate due to contact with stored items or repeated use, or when packaging base materials are stacked and fused together when manufacturing containers, the tarpaulin sheet and gas barrier plastic film may be made of different materials. , there is a decrease in fusion strength compared to similar materials.
本考案はこのような問題を解決したものであつ
て、その要旨とするところはターポリンシートの
構成層であるエチレン−酢酸ビニル共重合体によ
る軟質プラスチツク層の中へ内層として塩化ビニ
ル−塩化ビニリデン共重合体フイルムによつて形
成した気密層を埋設して可撓性コンテナーを構成
した点にあり、この構成によれば、コンテナー作
製に当つては融着面が全て同一材料となるため、
融着強度が向上することは勿論のこと、気密層は
損傷の生ずる心配が完全に解消し、長期使用に亘
るも酸素や水蒸気に対する気密性及び耐久性を十
分に保持できる可撓性コンテナーを低コストで提
供できる。 The present invention has solved these problems, and its gist is to add vinyl chloride-vinylidene chloride copolymer as an inner layer to the soft plastic layer made of ethylene-vinyl acetate copolymer, which is the constituent layer of the tarpaulin sheet. The flexible container is constructed by embedding an airtight layer formed of a polymer film, and with this construction, all the fused surfaces are made of the same material when manufacturing the container.
Not only does the strength of the welding bond improve, but the risk of damage to the airtight layer is completely eliminated, creating a flexible container that maintains sufficient airtightness and durability against oxygen and water vapor even during long-term use. Can be provided at low cost.
以下に、本考案の実施例を添付図面を参照しな
がら説明する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図において、１はターポリンシートであり
このターポリンシート１は平織布を基布１ａとし
てその両面に軟質プラスチツク層１ｂを設けた構
成であつて、軟質プラスチツク層１ｂはエチレン
−酢酸ビニル共重合体によつて形成され、この軟
質プラスチツク層１ｂの中に内層として塩化ビニ
ル−塩化ビニリデン共重合体フイルムによつて形
成した気密層２を設けてある。気密層２は、第２
図に示す如く基布１ａの片面側に位置させて軟質
プラスチツク層１ｂの中に多層化して構成しても
よく、また、第３図に示す如く基布１ａの両面側
に位置させて軟質プラスチツク層１ｂの中にそれ
ぞれ設けて構成することもできる。このように構
成した包装基材を裁断し、その裁断物を第４図に
示す如く各接合部３，３′，４，５の部分で融着
してコンテナーの形態に作製する。 In Fig. 1, reference numeral 1 denotes a tarpaulin sheet, and this tarpaulin sheet 1 has a structure in which a base fabric 1a is made of plain woven fabric and a soft plastic layer 1b is provided on both sides.The soft plastic layer 1b is made of ethylene-vinyl acetate copolymer. An airtight layer 2 made of a vinyl chloride-vinylidene chloride copolymer film is provided as an inner layer in the soft plastic layer 1b. The airtight layer 2 is the second
As shown in the figure, the soft plastic layer 1b may be placed on one side of the base fabric 1a and multi-layered, or as shown in FIG. They can also be configured by being provided in each layer 1b. The packaging base material constructed in this manner is cut and the cut pieces are fused at the joints 3, 3', 4, and 5 to form a container as shown in FIG.
なお、６は充填用の開口部、７は排出用の開口
部である。 Note that 6 is an opening for filling, and 7 is an opening for discharging.
しかして、可撓性コンテナーを作製するに際し
て本包装基材の裁断物を接合するには、その接合
融着部の気密性並びに強度を十分に確保するた
め、融着巾は少なくとも10mm以上とし、高周波ウ
エルダーの金型を使用して隙間の生じないように
連続的に融着作業を行なう。そして、融着ライン
は２列乃至は３列として融着の確実を期する。ま
た端面処理については、軟質プラスチツク層１ｂ
と同一材料乃至はこれらと相溶性を有する封じ材
８を用い、この封じ材８を第５図及び第６図に示
す如く接合部分の端面に融着する。この端面処理
によれば、細い糸の集合体である基布１ａの糸の
間隙に対する端面の気密保持と、基布１ａの切り
口での切りくずの脱落防止とが同時に果される。 Therefore, when joining the cut pieces of this packaging base material when producing a flexible container, the welding width should be at least 10 mm or more in order to ensure sufficient airtightness and strength of the joined fusion part. Using a high-frequency welder mold, welding is carried out continuously so that there are no gaps. The fusion lines are arranged in two or three rows to ensure reliable fusion. In addition, regarding the edge treatment, the soft plastic layer 1b
A sealant 8 made of the same material as or compatible with these is used, and the sealant 8 is fused to the end surface of the joint portion as shown in FIGS. 5 and 6. According to this end face treatment, the end face of the base fabric 1a, which is an aggregate of thin threads, is kept airtight with respect to the gaps between the threads, and the chips at the cut end of the base fabric 1a are prevented from falling off at the same time.
更にまた、充填用及び排出用の開口部６，７は
フランジ、クリツプ、プラグ等を用いて、または
第４図に示す如く気密性フアスナー９，１０を用
いて気密化する。この気密性フアスナー９，１０
自体は公知のものであり、例えばフアスナーの係
合爪が互いに噛み合つた状態のとき、相対向した
縁辺部分が互いに弾性的に強く密接する弾性片を
左右の両爪止め布に添接した構造のものを使用す
る。気密性フアスナーを用いた場合には、該フア
スナーの取付け部分より内方に容易に切り開くこ
とができる薄膜等を補助的に張設し、被収容物で
ある粉粒体等がフアスナーに詰まり、フアスナー
の開閉操作に支障を来たさない工夫を講じること
が好ましい。 Furthermore, the filling and draining openings 6, 7 are airtight by means of flanges, clips, plugs, or the like, or by means of airtight fasteners 9, 10 as shown in FIG.
For example, when the engaging claws of the fastener are in mesh with each other, elastic pieces whose opposing edges come into strong elastic contact with each other are attached to both the left and right claw fastening cloths. When an airtight fastener is used, it is preferable to supplementarily stretch a thin film or the like that can be easily cut open inward from the attachment part of the fastener, so that the powder or granular material contained does not get stuck in the fastener and interfere with the opening and closing operation of the fastener.
なお、ターポリンシート１の厚さは0.3〜２
mm、その中で気密層２の外層となる軟質プラスチ
ツク層１ｂの厚さは0.1〜１mm、気密層２の厚さ
は10〜200μ程度の範囲であり、最適な厚さによ
る組合わせのものを選定する。また、軟質プラス
チツク層１ｂとしてはエチレン−酢酸ビニル共重
合体を主成分とする他材料との混合物を用いるこ
とができる。 In addition, the thickness of tarpaulin sheet 1 is 0.3 to 2
mm, the thickness of the soft plastic layer 1b which is the outer layer of the airtight layer 2 is in the range of 0.1 to 1mm, and the thickness of the airtight layer 2 is in the range of about 10 to 200μ. Select. Further, as the soft plastic layer 1b, a mixture containing ethylene-vinyl acetate copolymer as a main component and other materials can be used.
本考案は上記の如くであつて、塩化ビニル−塩
化ビニリデン共重合体フイルムによる気密層を、
ターポリンシートを構成する軟質プラスチツク層
の中に内層として設けたので、気密層の損傷する
ことは完全に防止できるし、また、本コンテナー
作製時における包装基材同士の融着を強力に行な
うことが可能となる。しかして、本考案は軟質プ
ラスチツク層をエチレン−酢酸ビニル共重合体に
よつて形成したので、柔軟性、耐摩耗性高周波融
着性等に優れ、機械的強度が大であるコンテナー
を提供できるし、また、気密層は塩化ビニル−塩
化ビニリデン共重合体フイルムによつて形成され
ているため、その破断点伸びはターポリンシート
のそれと比較して十分に大きく、気密性及び耐久
性の点で著しく有利となり、特に酸素や水蒸気等
のガスに対する気密性は著しく向上し、収容物の
品質変化を完全に防止できる可撓性コンテナーを
低コストで提供できる等、その実用的価値は極め
て多大である。 The present invention is as described above, and includes an airtight layer made of a vinyl chloride-vinylidene chloride copolymer film.
Since it is provided as an inner layer within the soft plastic layer that makes up the tarpaulin sheet, it can completely prevent damage to the airtight layer, and also strongly fuses the packaging base materials together when producing this container. It becomes possible. Therefore, since the soft plastic layer of the present invention is formed from an ethylene-vinyl acetate copolymer, it is possible to provide a container that has excellent flexibility, abrasion resistance, high frequency weldability, etc., and has high mechanical strength. In addition, since the airtight layer is formed of a vinyl chloride-vinylidene chloride copolymer film, its elongation at break is sufficiently larger than that of tarpaulin sheets, making it extremely advantageous in terms of airtightness and durability. Therefore, the airtightness against gases such as oxygen and water vapor is significantly improved, and a flexible container that can completely prevent changes in the quality of the contents contained therein can be provided at a low cost, and its practical value is extremely large.
図面は本考案の実施例を示すもので、第１図乃
至第３図は構成材の各種変形例の断面図、第４図
は本コンテナーの概略的断面図、第５図及び第６
図は構成材同士の接合部分の断面図である。
図中、１はターポリンシート、１ａは基布、１
ｂは軟質プラスチツク層、２は気密層、６，７は
開口部である。
The drawings show embodiments of the present invention, and FIGS. 1 to 3 are cross-sectional views of various modifications of the constituent materials, FIG. 4 is a schematic cross-sectional view of the container, and FIGS. 5 and 6.
The figure is a sectional view of a joint between constituent members. In the figure, 1 is a tarpaulin sheet, 1a is a base fabric, 1
b is a soft plastic layer, 2 is an airtight layer, and 6 and 7 are openings.
Claims (1)
ク層を設けたサンドイツチ構造のシートにより形
成され、充填用及び排出用の開口部を有する可撓
性コンテナーにおいて、上記軟質プラスチツク層
はエチレン−酢酸ビニル共重合体によつて形成
し、この軟質プラスチツク層の中へ内層として塩
化ビニル−塩化ビニリデン共重合体フイルムによ
り形成した気密層を埋設して成ることを特徴とす
る可撓性コンテナー。 A flexible container is formed of a sandwich-structured sheet with a plain woven fabric as a base fabric and soft plastic layers on both sides, and has openings for filling and discharging.The soft plastic layer is made of ethylene-vinyl acetate. 1. A flexible container characterized by being formed of a polymer and having an airtight layer formed of a vinyl chloride-vinylidene chloride copolymer film embedded as an inner layer in the soft plastic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16504079U JPS6221589Y2 (en) | 1979-11-30 | 1979-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16504079U JPS6221589Y2 (en) | 1979-11-30 | 1979-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5681888U JPS5681888U (en) | 1981-07-02 |
| JPS6221589Y2 true JPS6221589Y2 (en) | 1987-06-01 |
Family
ID=29675966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16504079U Expired JPS6221589Y2 (en) | 1979-11-30 | 1979-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6221589Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002347884A (en) * | 2001-05-24 | 2002-12-04 | Shibata Ind Co Ltd | Method for storing particular material and volatile material |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019433U (en) * | 1983-07-19 | 1985-02-09 | カンボウプラス株式会社 | Moisture-proof laminated sheet material |
| JP2008180489A (en) * | 2006-12-28 | 2008-08-07 | Tonamino Nogyo Kyodo Kumiai | Flexible container and drying method using the same |
| MX2015016738A (en) | 2013-06-05 | 2016-10-13 | Ameriglobe Llc | Method of production of fabric bags or containers using heat fused seams. |
-
1979
- 1979-11-30 JP JP16504079U patent/JPS6221589Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002347884A (en) * | 2001-05-24 | 2002-12-04 | Shibata Ind Co Ltd | Method for storing particular material and volatile material |
| JP4724314B2 (en) * | 2001-05-24 | 2011-07-13 | シバタ工業株式会社 | How to store powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5681888U (en) | 1981-07-02 |
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