JPH0420786Y2 - - Google Patents
Info
- Publication number
- JPH0420786Y2 JPH0420786Y2 JP1987088798U JP8879887U JPH0420786Y2 JP H0420786 Y2 JPH0420786 Y2 JP H0420786Y2 JP 1987088798 U JP1987088798 U JP 1987088798U JP 8879887 U JP8879887 U JP 8879887U JP H0420786 Y2 JPH0420786 Y2 JP H0420786Y2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- polyethylene
- resin
- tackifier
- inner seal
- 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
- 239000010410 layer Substances 0.000 claims description 69
- 229920005989 resin Polymers 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 22
- -1 polypropylene Polymers 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 19
- 239000004698 Polyethylene Substances 0.000 claims description 16
- 229920000573 polyethylene Polymers 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 11
- 239000003566 sealing material Substances 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000011888 foil Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 3
- 239000011086 glassine Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 235000021539 instant coffee Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Closures For Containers (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本発明は、インスタントコーヒー等を収納した
瓶口に使用されるインナーシール材に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an inner sealing material used at the mouth of a bottle containing instant coffee or the like.
〈従来の技術〉
従来、インスタントコーヒー等の容器の瓶口に
は、内容物を湿気から保護する目的で、インナー
シール材が用いられている。このインナーシール
材は、再封層、剥離層、メンブレン層からなる積
層体であり、キヤツプをはずしたときに再封層と
メンブレン層が剥離層により分離するもので、公
知技術としては、例えば実公昭59−9659がある。<Prior Art> Conventionally, an inner sealing material has been used at the mouth of a container for instant coffee or the like for the purpose of protecting the contents from moisture. This inner seal material is a laminate consisting of a resealing layer, a peeling layer, and a membrane layer, and when the cap is removed, the resealing layer and the membrane layer are separated by the peeling layer. There is Kosho 59-9659.
実公昭59−9659に示されるインナーシール材
は、次の構成からなる。即ち、板紙、接着剤層、
ポリエチレン層からなる再封層、剥離層、及び印
刷絵柄層、金属箔層、ポリエチレン層、グラシン
紙からなるメンブレン層を順次積層したものであ
る。一般に前記構成のうち接着剤層には、マイク
ロワツクス、エチレン−酢酸ビニル共重合体等を
主成分とし、これに松ヤニ等の粘着性付与剤を添
加したものを用いる場合が多い。また、前記剥離
層としては、実公昭59−9659に示されている、ポ
リエチレンに対して親和性の弱い合成樹脂等のほ
か、特公昭56−35544に示されるような界面活性
剤も用いられている。 The inner seal material shown in Utility Model Publication No. 59-9659 has the following configuration. i.e. paperboard, adhesive layer,
A resealing layer made of a polyethylene layer, a peeling layer, a printed pattern layer, a metal foil layer, a polyethylene layer, and a membrane layer made of glassine paper are laminated in this order. In general, the adhesive layer of the above structure is often made of microwax, ethylene-vinyl acetate copolymer, etc. as a main component, to which a tackifying agent such as pine resin is added. Furthermore, as the release layer, in addition to synthetic resins having a weak affinity for polyethylene as shown in Japanese Utility Model Publication No. 59-9659, surfactants as shown in Japanese Patent Publication No. 56-35544 are also used. There is.
〈考案が解決しようとする問題点〉
しかしながら、前記従来のインナーシール材の
構成において、前記接着剤層に、粘着性付与剤を
添加したワツクス等を使用した場合、インナーシ
ール材の保存状態あるいは経時等によつて、再封
層とメンブレン層の分離が行なわれにくくなると
いう現象がしばしば発生してしまつていた。<Problems to be solved by the invention> However, in the structure of the conventional inner sealing material, when wax or the like to which a tackifier is added is used in the adhesive layer, the storage state of the inner sealing material or the aging etc., a phenomenon often occurs in which separation of the resealing layer and the membrane layer becomes difficult.
本考案者らは、この欠点に関し鋭意研究の結
果、前記粘着性付与剤がポリエチレン層を透過し
て剥離層に達し、ポリエチレン層と剥離層の接着
性を高めてしまい、剥離層の機能を損なつている
ことを発見し、本考案を完成するに至つた。 As a result of extensive research into this drawback, the inventors of the present invention found that the tackifier penetrates the polyethylene layer and reaches the release layer, increasing the adhesiveness between the polyethylene layer and the release layer, impairing the function of the release layer. This led to the completion of this invention.
〈問題点を解決するための手段〉
前記問題点を解決するために、本考案は、クツ
シヨン材、粘着性付与剤を含む接着剤層、バリヤ
ー性樹脂層、ポリエチレン層を順次積層してなる
再封層を用いたことを特徴とするインナーシール
材である。<Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention provides a reusable material made by sequentially laminating a cushion material, an adhesive layer containing a tackifier, a barrier resin layer, and a polyethylene layer. This is an inner sealing material characterized by using a sealing layer.
〈作用〉
本考案によるインナーシール材は、接着剤層と
剥離層の間にバリヤー性樹脂層を有しており、接
着剤に含まれる粘着性付与剤が移行して剥離層に
達することを防ぎ、剥離層の機能を損なわない。<Function> The inner seal material according to the present invention has a barrier resin layer between the adhesive layer and the release layer, which prevents the tackifier contained in the adhesive from migrating and reaching the release layer. , does not impair the function of the release layer.
〈実施例〉
本考案によるインナーシール材の実施例につい
て図面に従つて説明する。<Example> An example of the inner seal material according to the present invention will be described with reference to the drawings.
本考案のインナーシール材は、第１図に示すよ
うに、クツシヨン材１、粘着性付与剤を添加した
ワツクス等の接着剤層２、バリヤー性樹脂層３、
ポリエチレン層４からなる再封層Ａ、剥離層Ｂ、
メンブレン層Ｃを積層してなる。 As shown in FIG. 1, the inner seal material of the present invention comprises a cushion material 1, an adhesive layer 2 such as wax containing a tackifier, a barrier resin layer 3,
A resealing layer A consisting of a polyethylene layer 4, a peeling layer B,
It is formed by laminating membrane layers C.
まず、クツシヨン材１は、乳栓ボール紙等の板
紙、発泡ポリエチレンシート、コールゲート紙等
のクツシヨン性を有する材料を使用することがで
きる。 First, the cushion material 1 can be made of a material having cushioning properties such as paperboard such as milk corrugated paper, foamed polyethylene sheet, coal gate paper, or the like.
バリヤー性樹脂層３には、粘着性付与剤に対す
るバリヤー性（不透過性）に優れた、ポリプロピ
レン樹脂を用いる。バリヤー性樹脂層を設ける方
法としては、前記樹脂を溶融してコーテイングす
ることによつても可能であるが、前記樹脂からな
るフイルムを用いる方が、生産上好ましい。 For the barrier resin layer 3, a polypropylene resin having excellent barrier properties (impermeability) to tackifiers is used. Although the barrier resin layer can be provided by melting and coating the resin, it is preferable in terms of production to use a film made of the resin.
剥離層Ｂは、ポリエチレンに対して親和性の低
い樹脂、例えばニトロセルロース系、ポリアミド
系、アクリル系、ゴム系、ポリエステル系、ポリ
ウレタン系、ポリ塩化ビニル系等の樹脂を主成分
とする離型剤、あるいは両イオン系、陰イオン
系、非イオン系、陽イオン系の界面活性剤、また
はこれら界面活性剤を主成分とする剥離剤等を用
いることができる。 The release layer B is a mold release agent whose main component is a resin that has low affinity for polyethylene, such as a nitrocellulose-based, polyamide-based, acrylic-based, rubber-based, polyester-based, polyurethane-based, or polyvinyl chloride-based resin. Alternatively, amphoteric, anionic, nonionic, or cationic surfactants, or stripping agents containing these surfactants as main components, can be used.
メンブレン層Ｃは、必要に応じて印刷を施した
グラシン紙と、必要に応じて印刷を施したアルミ
ニウム箔等の金属箔を、ポリオレフイン系樹脂層
を介して積層して得ることができる。 The membrane layer C can be obtained by laminating optionally printed glassine paper and optionally printed metal foil such as aluminum foil via a polyolefin resin layer.
次に、本考案によるインナーシール材の生産方
法の実施例について若干説明する。 Next, some embodiments of the method for producing an inner seal material according to the present invention will be described.
まず、必要に応じて印刷を施したグラシン紙
と、金属箔を、ポリオレフイン系樹脂を用いて、
押出しラミネーシヨンにより積層し、次いで必要
に応じて金属箔上に印刷を施してメンブレン層Ｃ
を作成する。次にメンブレン層の金属箔上に、剥
離層等をコーテイングして剥離層Ｂを設ける。こ
の後、前記剥離層Ｂを設けた積層体の剥離層Ｂ上
に、ポリエチレン層４、ポリプロピレン樹脂から
なるバリヤー性樹脂層３を順次設けるが、この場
合ポリエチレン樹脂を溶融コーテイングした後バ
リヤー性樹脂を溶融コーテイングすることも可能
であるが、バリヤー性樹脂層を構成するポリプロ
ピレン樹脂はポリエチレンとの接着性がきわめて
良好であるので、ポリプロピレン樹脂フイルム
を、ポリエチレン樹脂を用いた押出しラミネーシ
ヨンにより積層する方が生産性が良く、また、バ
リヤー性樹脂層に接着性改善のための補助層を形
成したり、表面処理を施す必要がないので、好ま
しい。 First, we used glassine paper with printing as necessary, metal foil, and polyolefin resin.
The membrane layer C is laminated by extrusion lamination and then printed on the metal foil if necessary.
Create. Next, a release layer B is provided on the metal foil of the membrane layer by coating a release layer or the like. Thereafter, a polyethylene layer 4 and a barrier resin layer 3 made of polypropylene resin are sequentially provided on the release layer B of the laminate provided with the release layer B. In this case, the barrier resin layer 3 is formed after melt-coating the polyethylene resin. Melt coating is also possible, but since the polypropylene resin that makes up the barrier resin layer has extremely good adhesion to polyethylene, it is better to laminate the polypropylene resin film by extrusion lamination using polyethylene resin. This method is preferable because it has good productivity and there is no need to form an auxiliary layer on the barrier resin layer to improve adhesion or to perform surface treatment.
従来のインナーシール材では、このポリエチレ
ン層４は溶融コーテイングにより設けたいたが、
冷却ロールに溶融ポリエチレンが付着することを
防ぐためには処理速度を落とさなければならなか
つた。これに対し、本考案においてポリエチレン
層４とバリヤー性樹脂層３を設けるに際して、押
出しラミネーシヨンによる方法を採用した場合、
処理速度は従来のインナーシール材の場合に比べ
て約２倍とすることができる。 In conventional inner seal materials, this polyethylene layer 4 was provided by melt coating, but
Processing speeds had to be slowed down to prevent molten polyethylene from adhering to the cooling rolls. On the other hand, in the present invention, when an extrusion lamination method is adopted when providing the polyethylene layer 4 and the barrier resin layer 3,
The processing speed can be approximately twice that of conventional inner seal materials.
最後に、前記バリヤー性樹脂層３を設けた積層
体と、クツシヨン材１を、接着剤層２を介して積
層し、本考案によるインナーシール材が完成され
る。 Finally, the laminate provided with the barrier resin layer 3 and the cushion material 1 are laminated via the adhesive layer 2 to complete the inner seal material according to the present invention.
〈考案の効果〉
本考案によるインナーシール材は、上述のよう
な構成からなつているので、接着剤中の粘着性付
与剤が移行して剥離層に達して剥離層の機能を損
なうことがなく、インナーシール材の保存状態や
経時等により再封層とメンブレン層の分離が行な
われにくくなるという従来のインナーシール材の
問題点を解決した、実用上優れたインナーシール
材である。<Effects of the invention> Since the inner sealing material according to the invention has the above-mentioned structure, the tackifier in the adhesive does not migrate and reach the release layer and impair the function of the release layer. , is a practically excellent inner sealing material that solves the problem of conventional inner sealing materials in which separation of the resealing layer and membrane layer becomes difficult due to storage conditions of the inner sealing material, aging, etc.
第１図は本考案によるインナーシール材の一実
施例を示す断面図である。
１……クツシヨン材、２……接着剤層、３……
バリヤー性樹脂層、４……ポリエチレン層、Ａ…
…再封層、Ｂ……剥離層、Ｃ……メンブレン層。
FIG. 1 is a sectional view showing an embodiment of the inner seal material according to the present invention. 1...Cushion material, 2...Adhesive layer, 3...
Barrier resin layer, 4... polyethylene layer, A...
...Resealing layer, B...Peeling layer, C...Membrane layer.
Claims (1)
ーシール材において、クツシヨン材、粘着性付与
剤を含む接着剤層、ポリプロピレン樹脂からなる
粘着性付与剤バリヤー層、ポリエチレン層を順次
積層してなる再封層を用いたことを特徴とするイ
ンナーシール材。 In an inner sealing material consisting of a resealing layer, a peeling layer, and a membrane layer, a cushioning material, an adhesive layer containing a tackifier, a tackifier barrier layer made of polypropylene resin, and a polyethylene layer are sequentially laminated. An inner seal material characterized by using layers.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6288787U JPS63173729U (en) | 1987-06-09 | 1987-04-25 | |
| JP1987088798U JPH0420786Y2 (en) | 1987-06-09 | 1987-06-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987088798U JPH0420786Y2 (en) | 1987-06-09 | 1987-06-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63197865U JPS63197865U (en) | 1988-12-20 |
| JPH0420786Y2 true JPH0420786Y2 (en) | 1992-05-12 |
Family
ID=30947218
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6288787U Pending JPS63173729U (en) | 1987-06-09 | 1987-04-25 | |
| JP1987088798U Expired JPH0420786Y2 (en) | 1987-06-09 | 1987-06-09 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6288787U Pending JPS63173729U (en) | 1987-06-09 | 1987-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (2) | JPS63173729U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0712305Y2 (en) * | 1988-03-02 | 1995-03-22 | 日本製箔株式会社 | Inner seal material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521977B2 (en) * | 1974-12-20 | 1980-06-13 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836685Y2 (en) * | 1978-07-31 | 1983-08-18 | 大日本印刷株式会社 | Inner seal material for sealing the container mouth |
| JPS60143222A (en) * | 1984-10-24 | 1985-07-29 | Nippon Seiko Kk | Spindle unit |
-
1987
- 1987-04-25 JP JP6288787U patent/JPS63173729U/ja active Pending
- 1987-06-09 JP JP1987088798U patent/JPH0420786Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521977B2 (en) * | 1974-12-20 | 1980-06-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63197865U (en) | 1988-12-20 |
| JPS63173729U (en) | 1988-11-11 |
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