JPH0124627B2 - - Google Patents
Info
- Publication number
- JPH0124627B2 JPH0124627B2 JP55153624A JP15362480A JPH0124627B2 JP H0124627 B2 JPH0124627 B2 JP H0124627B2 JP 55153624 A JP55153624 A JP 55153624A JP 15362480 A JP15362480 A JP 15362480A JP H0124627 B2 JPH0124627 B2 JP H0124627B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- thermoplastic synthetic
- gas barrier
- polyethylene
- container
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 16
- 239000000057 synthetic resin Substances 0.000 claims description 16
- 229920001169 thermoplastic Polymers 0.000 claims description 16
- 239000004416 thermosoftening plastic Substances 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 5
- 239000005022 packaging material Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- -1 polypropylene Polymers 0.000 description 12
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000011888 foil Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 235000013555 soy sauce Nutrition 0.000 description 3
- 150000002466 imines Chemical class 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004826 Synthetic adhesive Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明は改良された液体等の紙を素材とした容
器に適した包装材料に関するもので、その特徴と
するところは、ガスバリヤー性を付与するために
アルミニウム等の金属箔を用いず、その代わりに
ポリエステル、ナイロン、ポリプロピレン等のガ
スバリヤー性の優れた合成樹脂を用いた点にあ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved packaging material suitable for containers made of paper for liquids, etc., and is characterized by the fact that it is made of metal such as aluminum to provide gas barrier properties. Instead of using foil, a synthetic resin with excellent gas barrier properties such as polyester, nylon, or polypropylene is used instead.
従来、日本酒、醤油、ジユース等の飲食物、特
に保存期間の長い日本酒、醤油は保存中に空気、
光等が容器を通過して品質が劣化するという問題
がある。そこで容器の素材として、アルミニウム
等の金属箔をポリエチレン等の熱可塑性合成樹脂
と組合わせた積層材料を用いたものがあるが、こ
の従来の積層材料においてはアルミニウム等の金
属箔を用いているために、容器成形時、またはシ
ール時等に割れやピンホールが発生し易く、さら
に、カツプ状の容器本体の開口部に蓋材を接着す
る形式の容器の場合、容器本体開口部のフランジ
部分（蓋材との接着個所）にアルミニウム等の金
属箔が素材として含まれていると、蓋材を接着し
た後、開蓋時に剥離性がなく、紙層間で剥離が発
生してしまうという問題がある。 Traditionally, drinks such as sake, soy sauce, and youth, especially sake and soy sauce that have a long shelf life, have been exposed to air during storage.
There is a problem that light and the like pass through the container, degrading the quality. Therefore, as a material for containers, there are laminated materials that combine metal foil such as aluminum with thermoplastic synthetic resin such as polyethylene. Cracks and pinholes are likely to occur during container molding or sealing.Furthermore, in the case of containers in which the lid is glued to the opening of the cup-shaped container body, the flange portion of the opening of the container body ( If metal foil such as aluminum is included as a material in the adhesive part with the lid material, there is a problem that after the lid material is bonded, there is no peeling property when the lid is opened, and peeling occurs between the paper layers. .
また、製造面について見ると、アルミニウム等
の金属箔を用いると他の素材に比べてコストが高
くなるという問題もある。 In addition, in terms of manufacturing, there is also the problem that the use of metal foil such as aluminum increases the cost compared to other materials.
そこで、上記従来技術の問題点を解消すべく、
金属箔を用いずに、熱可塑性合成樹脂の組合わせ
により優れたガスバリヤー性を付与したものが本
発明であつて、以下、図面の実施例に基いて詳細
に説明する。 Therefore, in order to solve the problems of the above-mentioned conventional technology,
The present invention provides excellent gas barrier properties through a combination of thermoplastic synthetic resins without using metal foil, and will be described in detail below based on embodiments shown in the drawings.
本発明の液体紙容器用包装材料は第１図に示す
ように紙２の一方の面にポリエチレン等の熱可塑
性合成樹脂１を積層し、他方の面にはポリエチレ
ン等の熱可塑性合成樹脂３またはイソシアネート
系、イミン系接着剤を介して、ポリエステル、ナ
イロン、ポリプロピレン等のガスバリヤー性の優
れたフイルム４を積層し、さらにそのガスバリヤ
ー性フイルム４にポリエチレン等の熱可塑性合成
樹脂５を積層して成るものであつて、液体紙容器
の素材として使用する場合には熱可塑性合成樹脂
５が容器の内面となるようにしたものである。 As shown in FIG. 1, the packaging material for liquid paper containers of the present invention is made by laminating a thermoplastic synthetic resin 1 such as polyethylene on one side of paper 2, and a thermoplastic synthetic resin 3 such as polyethylene or the like on the other side. A film 4 with excellent gas barrier properties such as polyester, nylon, or polypropylene is laminated via an isocyanate-based or imine-based adhesive, and a thermoplastic synthetic resin 5 such as polyethylene is further laminated on the gas barrier film 4. When used as a material for a liquid paper container, the thermoplastic synthetic resin 5 forms the inner surface of the container.
なお、各層間の接着性を向上させるために、各
層間にイソシアネート系、イミン系等の接着剤を
施しても良いし、また、ポリエステル系樹脂を接
着補助剤として用いて接着力を強めて包装材料と
しての物性を高めることもできる。 In order to improve the adhesion between each layer, an isocyanate-based or imine-based adhesive may be applied between each layer, or a polyester resin may be used as an adhesion auxiliary agent to strengthen the adhesive strength for packaging. It is also possible to improve the physical properties of the material.
次に本発明の包装材料の一般的製法について簡
単に述べると、紙２の一方または両方の面を、コ
ロナ放電処理、フレーム処理等により活性化して
接着性を付与してポリエチレン等の熱可塑性合成
樹脂１，３をエクストルーダー法により積層し、
別工程でガスバリヤー性フイルム４の一方の面に
ドライラミネーシヨン、またはエクストルーダー
法によりポリエチレン等の熱可塑性合成樹脂５を
積層し、前記熱可塑性合成樹脂３面とガスバリヤ
ー性フイルム４面とを接着して本発明の包装材料
が作成される。 Next, to briefly describe the general manufacturing method of the packaging material of the present invention, one or both sides of the paper 2 are activated by corona discharge treatment, flame treatment, etc. to impart adhesive properties, and then a thermoplastic compound such as polyethylene is formed. Layer resins 1 and 3 using an extruder method,
In a separate process, a thermoplastic synthetic resin 5 such as polyethylene is laminated on one side of the gas barrier film 4 by dry lamination or an extruder method, and the thermoplastic synthetic resin 3 side and the gas barrier film 4 side are laminated. By adhering, the packaging material of the present invention is created.
この場合、ポリエチレン等の熱可塑性合成樹脂
５は低温押出しの方法でガスバリヤー性フイルム
４に積層すれば、紙２がカールしたりすることが
なく、また、低温でポリエチレンの層が形成され
るので酸化臭を生じることもない。 In this case, if the thermoplastic synthetic resin 5 such as polyethylene is laminated on the gas barrier film 4 by low-temperature extrusion, the paper 2 will not curl and the polyethylene layer will be formed at low temperatures. It does not produce any oxidized odor.
本発明は以上のような構成になつているので次
のような優れた実用上の効果を有する。 Since the present invention has the above structure, it has the following excellent practical effects.
(イ) アルミニウム等の金属箔を含んでいないので
容器成形時またはシール時等、熱や大きな外力
を加えたり、素材を折曲げたりすることにも割
れやピンホールが発生するということがない。(a) Since it does not contain metal foil such as aluminum, it will not cause cracks or pinholes even when heat or large external force is applied during container molding or sealing, or when the material is bent.
(ロ) アルミニウム等の金属箔の代わりに、ポリエ
ステル、ナイロン、ポリプロピレン等のガスバ
リヤー性の熱可塑性合成樹脂を含んでいるの
で、酒、醤油等の保存期間の長い内容物の容器
（第２図に示すような切妻型頂部を有する容器
等）に用いるのに適している。(b) Instead of metal foil such as aluminum, it contains a thermoplastic synthetic resin with gas barrier properties such as polyester, nylon, and polypropylene, so it is suitable for containers with long-lasting contents such as sake and soy sauce (see Figure 2). It is suitable for use in containers with gable tops (such as those shown in Figure 1).
(ハ) 第３図に示すようなカツプ状の本体６の開口
部に蓋７を接着する形式の容器の場合、本体は
もちろん、蓋７に本発明の包装材料を用いれば
（このときは紙は省略できる）、開蓋時にポリエ
チレン面から裂けるので剥離性が優れている。(c) In the case of a container in which a lid 7 is glued to the opening of a cup-shaped main body 6 as shown in FIG. (can be omitted), and has excellent removability as it tears from the polyethylene surface when the lid is opened.
図面は本発明の一実施例を示すもので、第１図
は本発明の断面図、第２図、第３図は本発明を用
いた容器のそれぞれ別の態様を示す、一部切除し
た斜視図である。
１，５……熱可塑性合成樹脂、３……熱可塑性
合成樹脂または接着剤、４……ガスバリヤー性フ
イルム、６……本体、７……蓋、Ｃ，C′……容
器。
The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view of the present invention, and FIGS. 2 and 3 are partially cutaway perspective views showing different embodiments of the container using the present invention. It is a diagram. 1, 5... Thermoplastic synthetic resin, 3... Thermoplastic synthetic resin or adhesive, 4... Gas barrier film, 6... Main body, 7... Lid, C, C'... Container.
Claims (1)
他方の面には熱可塑性合成樹脂または接着剤を介
してガスバリヤー性フイルムを積層し、さらに該
ガスバリヤー性フイルムに熱可塑性合成樹脂を積
層して成る液体紙容器用包装材料。1 Layer thermoplastic synthetic resin on one side of paper,
A packaging material for liquid paper containers, comprising a gas barrier film laminated on the other side via a thermoplastic synthetic resin or an adhesive, and a thermoplastic synthetic resin laminated on the gas barrier film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15362480A JPS5775853A (en) | 1980-10-31 | 1980-10-31 | Packing material for liquid vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15362480A JPS5775853A (en) | 1980-10-31 | 1980-10-31 | Packing material for liquid vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5775853A JPS5775853A (en) | 1982-05-12 |
| JPH0124627B2 true JPH0124627B2 (en) | 1989-05-12 |
Family
ID=15566557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15362480A Granted JPS5775853A (en) | 1980-10-31 | 1980-10-31 | Packing material for liquid vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5775853A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238150U (en) * | 1985-08-28 | 1987-03-06 | ||
| US4789575A (en) * | 1987-05-29 | 1988-12-06 | International Paper Company | Non-foil composite structures for packaging juice |
| JPH0655486B2 (en) * | 1990-12-20 | 1994-07-27 | ウェストヴァコ コーポレイション | Paperboard container and manufacturing method thereof |
| JPH0655485B2 (en) * | 1990-12-20 | 1994-07-27 | ウェストヴァコ コーポレイション | Paperboard container and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3239126A (en) * | 1963-12-27 | 1966-03-08 | Ex Cell O Corp | Paperboard container with liquid flavor retaining means |
| JPS5118775A (en) * | 1974-08-08 | 1976-02-14 | Showa Denko Kk | Ramineetofuirumuno seizohoho |
| JPS5141078A (en) * | 1974-08-06 | 1976-04-06 | Int Peepaa Co | |
| JPS52119690A (en) * | 1976-04-01 | 1977-10-07 | Showa Yuka Kk | Laminated materials |
| JPS542501B2 (en) * | 1976-03-15 | 1979-02-08 | ||
| JPS5429296A (en) * | 1977-08-05 | 1979-03-05 | Toppan Printing Co Ltd | Packaging material |
| JPS5413627B2 (en) * | 1972-02-19 | 1979-06-01 | ||
| JPS5549246A (en) * | 1978-10-02 | 1980-04-09 | Tokan Kogyo Co Ltd | Laminated vessel in paper and its preparation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5628995Y2 (en) * | 1976-12-22 | 1981-07-10 | ||
| JPS6134124Y2 (en) * | 1977-04-07 | 1986-10-04 | ||
| JPS542501U (en) * | 1977-06-07 | 1979-01-09 | ||
| JPS5737703Y2 (en) * | 1977-06-28 | 1982-08-19 |
-
1980
- 1980-10-31 JP JP15362480A patent/JPS5775853A/en active Granted
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3239126A (en) * | 1963-12-27 | 1966-03-08 | Ex Cell O Corp | Paperboard container with liquid flavor retaining means |
| JPS5413627B2 (en) * | 1972-02-19 | 1979-06-01 | ||
| JPS5141078A (en) * | 1974-08-06 | 1976-04-06 | Int Peepaa Co | |
| JPS5118775A (en) * | 1974-08-08 | 1976-02-14 | Showa Denko Kk | Ramineetofuirumuno seizohoho |
| JPS542501B2 (en) * | 1976-03-15 | 1979-02-08 | ||
| JPS52119690A (en) * | 1976-04-01 | 1977-10-07 | Showa Yuka Kk | Laminated materials |
| JPS5429296A (en) * | 1977-08-05 | 1979-03-05 | Toppan Printing Co Ltd | Packaging material |
| JPS5549246A (en) * | 1978-10-02 | 1980-04-09 | Tokan Kogyo Co Ltd | Laminated vessel in paper and its preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5775853A (en) | 1982-05-12 |
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