JP2000238846A - Sealed package - Google Patents
Sealed packageInfo
- Publication number
- JP2000238846A JP2000238846A JP11124956A JP12495699A JP2000238846A JP 2000238846 A JP2000238846 A JP 2000238846A JP 11124956 A JP11124956 A JP 11124956A JP 12495699 A JP12495699 A JP 12495699A JP 2000238846 A JP2000238846 A JP 2000238846A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- container
- paper
- flange portion
- sealant
- 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.)
- Granted
Links
- 239000010410 layer Substances 0.000 claims abstract description 67
- 239000000123 paper Substances 0.000 claims abstract description 33
- 239000000565 sealant Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000011101 paper laminate Substances 0.000 claims abstract description 22
- 230000004888 barrier function Effects 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000012790 adhesive layer Substances 0.000 claims abstract description 15
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000005977 Ethylene Substances 0.000 claims abstract description 9
- 229920001577 copolymer Polymers 0.000 claims abstract description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 4
- 229920001897 terpolymer Polymers 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 7
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 7
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 7
- -1 polypropylene Polymers 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000032798 delamination Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 102000006835 Lamins Human genes 0.000 description 2
- 108010047294 Lamins Proteins 0.000 description 2
- 229920001038 ethylene copolymer Polymers 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 210000005053 lamin Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LGXVIGDEPROXKC-UHFFFAOYSA-N 1,1-dichloroethene Chemical compound ClC(Cl)=C LGXVIGDEPROXKC-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 101100293260 Homo sapiens NAA15 gene Proteins 0.000 description 1
- 102100026781 N-alpha-acetyltransferase 15, NatA auxiliary subunit Human genes 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Packages (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はバリア層を含む多層
シートからなる内容器と紙基材からなる外容器とを接着
剤を介して接着してなるフランジ部を有する紙ラミネー
ト容器（以下紙ラミ容器と略する）と少なくともバリア
層を有する蓋材とをシールしてなる易開封性に優れた密
封包装体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper laminate container (hereinafter referred to as a paper laminate) having a flange portion formed by bonding an inner container made of a multilayer sheet including a barrier layer and an outer container made of a paper base with an adhesive. The present invention relates to a hermetically sealed package excellent in easy-opening property, which is formed by sealing at least a container having a barrier layer.
【０００２】[0002]
【従来の技術】近年、冷凍食品、総菜、菓子、漬け物等
の分野で環境、デザイン、意匠性等の問題から紙容器が
クローズアップされ各方面で検討されだしている。しか
しフランジ付き紙単体容器は紙自体の破材強度が一般的
に３００〜５００ｇ／２５ｍｍと弱い為、耐水性、耐熱
性機能を付与するためプラスチックフィルムをラミネー
トした紙ラミネート容器は採用されてはいるが蓋材との
シール強度は５００ｇ／２５ｍｍ以下に設定するとか、
部分的にシールする方法しかなく流通に流せる密封包装
体としては採用されておらず、特にバリア性機能を要求
される用途には採用不可能とされていた。又、従来より
フィルム分野では包装体の機能アップのため、例えば水
蒸気バリア性、耐熱性を有するポリプロピレン（以下Ｐ
Ｐと略する）、ガスバリア性を有するエチレン酢酸ビニ
ル共重合体（以下ＥＶＯＨと略する）、バリアナイロン
（以下ＭＸ−ＮＹと略する）、塩化ビニリデン（以下Ｐ
ＶＤＣと略する）等を主体にしたバリア性樹脂層及び各
種シーラントを主体にした多層シートが各方面で採用さ
れているが、該多層シートを接着層を介して紙基材と接
着して紙ラミ容器を生産、バリア性を有する蓋材と該紙
ラミ容器のフランジ部で流通上必要な５００〜１５００
ｇ／２５ｍｍの開封強度が得られる条件で全面シールし
てバリア性を有する密封包装体を製造した場合、紙層の
破材強度が５００ｇ／２５ｍｍ以下であること、あるい
は接着層の該多層シートと該紙基材との接着強度が弱か
ったりして、開封時に蓋材と多層シートとが袋状になり
易開封包装体とはならない。特開平１０−１１４３２７
号公報にはカルボニル基を含むエチレン系共重合体を接
着剤に使用する紙トレイ状容器が記載されているが、上
記のような開封時に蓋材と多層シートとが袋状になる現
象が見られる。2. Description of the Related Art In recent years, in the fields of frozen foods, prepared foods, confectionery, pickles and the like, paper containers have been taken up due to problems in the environment, design, design and the like, and are being studied in various fields. However, since a single piece of paper container with a flange has a weak strength of the paper itself, generally 300 to 500 g / 25 mm, a paper laminate container in which a plastic film is laminated to impart water resistance and heat resistance function has been adopted. But the sealing strength with the lid material is set to 500g / 25mm or less,
It was only adopted as a partially sealed method and was not adopted as a hermetically sealed package that could be flown in distribution, and could not be adopted especially for applications requiring a barrier function. Conventionally, in the film field, in order to enhance the function of the package, for example, polypropylene having a water vapor barrier property and heat resistance (hereinafter referred to as P
P), an ethylene vinyl acetate copolymer having gas barrier properties (hereinafter abbreviated as EVOH), a barrier nylon (hereinafter abbreviated as MX-NY), vinylidene chloride (hereinafter abbreviated as P).
A multi-layer sheet mainly composed of a barrier resin layer mainly composed of VDC, etc.) and various sealants is employed in each direction, and the multi-layer sheet is adhered to a paper substrate via an adhesive layer to form a paper. Producing a laminating container, 500 to 1500 necessary for distribution in a lid material having a barrier property and a flange portion of the paper laminating container
When a sealed package having a barrier property is produced by sealing the entire surface under the condition that an opening strength of g / 25 mm can be obtained, the broken layer strength of the paper layer is 500 g / 25 mm or less, or the multilayer sheet of the adhesive layer The lid material and the multilayer sheet become bag-like at the time of opening because the adhesive strength with the paper base material is weak, so that the package is not easily opened. JP-A-10-114327
In the publication, a paper tray-like container using an ethylene-based copolymer containing a carbonyl group as an adhesive is described. Can be
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、バリ
ア層を含む多層シートと紙基材とを接着層を介して接着
してなるフランジ付き紙ラミ容器とバリア層を有する蓋
材とをシールしてなる易開封性に優れた密封包装体を提
供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a paper laminating container with a flange formed by bonding a multilayer sheet including a barrier layer and a paper base via an adhesive layer, and a lid material having a barrier layer. An object of the present invention is to provide a hermetically sealed package excellent in openability.
【０００４】[0004]
【課題を解決するための手段】本発明は、厚みが１０μ
ｍ以上のシーラント層、隣接層、バリア層及び基材層を
含む全厚みが３０〜３００μｍの多層シートからなる内
容器と紙基材からなる外容器とをエチレン系共重合体か
らなる接着層を介して接着してなるフランジ部を有する
紙ラミネート容器と、シーラント層及びバリア層を少な
くとも有する蓋材とをシーラント層同士をシールしてな
る包装体において、紙ラミネート容器のシーラント層と
蓋材のシーラント層とのシール部の開封強度が５００〜
１５００ｇ／２５ｍｍ幅であって、紙ラミネート容器と
蓋材とのシール部が紙ラミネート容器フランジ部上の少
なくとも開封部分に該フランジ部の最外部より１ｍｍ以
上の未シール部を有する密封包装体である。好ましい実
施形態としては、紙ラミネート容器と蓋材とのシール部
が紙ラミネート容器フランジ部上に該フランジ部の全周
にわたり最外部より１ｍｍ以上の未シール部を有する上
記密封包装体である。更に好ましくは、前記エチレン系
共重合体がエチレン・アクリル酸エステル・無水マレイ
ン酸三元共重合体である密封包装体である。According to the present invention, a thickness of 10 μm is provided.
m or more of a sealant layer, an adjacent layer, a barrier layer, and an outer container made of a paper base and an inner container made of a multi-layered sheet having a thickness of 30 to 300 μm and an adhesive layer made of an ethylene-based copolymer. In a package formed by sealing a sealant layer between a paper laminate container having a flange portion adhered through a sealant layer and a lid member having at least a sealant layer and a barrier layer, a sealant for the sealant layer of the paper laminate container and a sealant for the lid member The opening strength of the seal part with the layer is 500 to
A sealed package having a width of 1500 g / 25 mm and a seal portion between the paper laminate container and the lid member having an unsealed portion of at least an opening portion on the flange portion of the paper laminate container at least 1 mm from the outermost portion of the flange portion. . In a preferred embodiment, the hermetically sealed package has a seal portion between the paper laminate container and the lid member having an unsealed portion of 1 mm or more from the outermost portion over the entire periphery of the flange portion of the paper laminate container flange portion. More preferably, it is a sealed package wherein the ethylene copolymer is a terpolymer of ethylene / acrylate / maleic anhydride.
【０００５】[0005]
【発明の実施の形態】本発明のシーラント層、隣接層、
バリア層及び基材層を含む多層シートは一般的な共押し
出し法やドライラミネート法や押し出しラミネート法等
によるＰＰ／隣接層／ＥＶＯＨ／隣接層／ＰＰ、ＰＰ／
隣接層／ＥＶＯＨ／ＮＹ／隣接層／ＰＰ等多種の構成の
採用が可能である。隣接層としては無水マレイン酸変性
ポリプロピレン等が用いられる。又紙基材としては１５
０〜６００ｇ／ｍ2好ましくは３００〜４００ｇ／ｍ2程
度の各種の板紙、加工紙、あるいはカップ原反等が好ま
しい。DETAILED DESCRIPTION OF THE INVENTION The sealant layer of the present invention, the adjacent layer,
The multilayer sheet including the barrier layer and the base material layer can be formed by a general co-extrusion method, a dry lamination method, an extrusion lamination method, or the like, PP / adjacent layer / EVOH / adjacent layer / PP, PP /
Various configurations such as adjacent layer / EVOH / NY / adjacent layer / PP can be adopted. As the adjacent layer, a maleic anhydride-modified polypropylene or the like is used. 15 for paper base
Various paperboards, processed papers, or raw cups of about 0 to 600 g / m 2, preferably about 300 to 400 g / m 2 are preferred.
【０００６】本発明の紙ラミ容器の製造方法としては紙
基材に多層シートを接着層にて接着した後プレス成形し
たり、接着層を塗布した紙基材を打ち抜き後組立型にし
てその上に多層シートを圧空、真空、圧空真空の併用等
の成形方法で成形接着したり、又例えばＰＰ／隣接層／
ＥＶＯＨ／隣接層／ＰＰ／接着層の如く多層シート製造
時に接着層を同時にラミネートした後、型にした紙基材
に同様の方法で成形して接着し完成することが可能であ
る。[0006] The method for producing a paper laminate container of the present invention is as follows: a multi-layer sheet is adhered to a paper substrate with an adhesive layer, followed by press molding; The multi-layer sheet is formed and bonded by a forming method such as pressurized air, vacuum, or combined use of pressurized air and vacuum.
It is possible to simultaneously laminate the adhesive layer during the production of a multilayer sheet, such as EVOH / adjacent layer / PP / adhesive layer, and then form and adhere to the molded paper substrate in the same manner to complete it.
【０００７】本発明の接着層はエチレン系共重合体層が
用いられことが多く、低融点であり低温ヒートシール性
に優れ、エチレン−酢酸ビニル共重合体、低密度ポリエ
チレン、アイオノマー等が挙げられる。中でも熱安定性
がよく、臭気が少ないエチレン、アクリル酸エステル及
び無水マレイン酸の３元共重合体が好ましい。As the adhesive layer of the present invention, an ethylene copolymer layer is often used. The adhesive layer has a low melting point and excellent low-temperature heat sealability, and examples thereof include an ethylene-vinyl acetate copolymer, low density polyethylene, and ionomer. . Above all, a terpolymer of ethylene, acrylic acid ester and maleic anhydride having good heat stability and low odor is preferable.
【０００８】本発明の蓋材としては、密封するためのシ
ーラント層及びバリア層を有する。バリア層としては、
ＰＶＤＣ、ＥＶＯＨ，ＮＹ、ＡＬ箔などの採用が可能で
あり最外層にはヒートシール時の熱盤温度に耐える耐熱
性のあるＰＥＴ、ＮＹ等を積層しておくことが好まし
い。又、蓋材は落とし蓋形状に成形して用いることも可
能である。蓋材と紙ラミ容器との密封シールする方法と
しては公知のヒートシール法、超音波シール法、高周波
シール法等が用いられ、又シール時に密封包装体内を炭
酸ガス、窒素ガス、これらの混合ガス等の不活性ガスで
置換することも可能である。又、本発明の密封包装体は
開封時に開封口位置を定めない場合が多いが、内容物に
よっては印刷等の手段により開封後部分の位置を特定す
ることも可能である。[0008] The lid material of the present invention has a sealant layer and a barrier layer for sealing. As a barrier layer,
It is possible to employ PVDC, EVOH, NY, AL foil, and the like, and it is preferable to laminate PET, NY, or the like that has heat resistance to the temperature of the hot platen during heat sealing on the outermost layer. Further, the lid material can be formed into a drop lid shape and used. As a method for hermetically sealing the lid material and the paper laminate container, a known heat sealing method, ultrasonic sealing method, high-frequency sealing method, or the like is used. In the sealing, the inside of the sealed package is carbon dioxide gas, nitrogen gas, or a mixed gas thereof. It is also possible to replace with an inert gas such as. In many cases, the position of the opening of the sealed package of the present invention is not determined at the time of opening. However, depending on the contents, the position of the opened portion can be specified by means such as printing.
【０００９】本発明について図面で説明する。図１は従
来の包装体の概略図であり、図２はそのフランジ部の断
面図である。紙ラミ容器７のフランジ部５の外縁は通常
各層の境界が出ている。図２の如く流通上必要なシール
強度が出る条件で蓋材１をフランジ部５の外縁部までシ
ールすると開封時紙ラミ容器７のフランジ部で紙基材４
が破断したり、多層シート２と紙基材４との間の接着層
３が剥離して、図３の如く蓋材１と多層シート２が袋状
となり、易開封とはならず内容物を取り出すことはでき
ない。図４は本発明の開封口部１０を有する包装体の概
略図であり、図５は本発明の開封口部を特定しない包装
体の包装体の概略図であり、図６はそのフランジ部の断
面図である。フランジ部５の最外部より１ｍｍ以上の幅
の未シール部８を残すことにより開封力がフランジ各層
の境界面に及ばず、紙ラミ容器７のフランジ部５全体に
力を分散して開封可能なため、必要シール強度でシール
していても図７の如く簡単に開封可能となる。このと
き、未シール部の巾が１ｍｍ未満であると、開封する力
は僅かではあるが、層間剥離力として働き、層間剥離が
生じる。従って未シール部８はフランジ外縁から１ｍｍ
以上の外側のフランジの外側部に有することが必要であ
る。またシーラント層が１０μｍ未満の場合は開封力が
シーラント層の破壊力として働き、さらには、層間剥離
につながる場合があり、シーラント層の厚みは１０μｍ
以上であることが必要である。The present invention will be described with reference to the drawings. FIG. 1 is a schematic view of a conventional package, and FIG. 2 is a sectional view of a flange portion thereof. The outer edge of the flange portion 5 of the paper laminate container 7 usually has a boundary between the layers. As shown in FIG. 2, when the cover 1 is sealed to the outer edge of the flange portion 5 under the condition that the necessary sealing strength is obtained for distribution, the paper base material 4 is opened at the flange portion of the paper lamination container 7 when opened.
Or the adhesive layer 3 between the multilayer sheet 2 and the paper base material 4 is peeled off, and the lid material 1 and the multilayer sheet 2 become a bag-like shape as shown in FIG. It cannot be removed. 4 is a schematic view of a package having the opening 10 of the present invention, FIG. 5 is a schematic view of a package of the present invention in which the opening is not specified, and FIG. It is sectional drawing. By leaving the unsealed portion 8 having a width of 1 mm or more from the outermost portion of the flange portion 5, the opening force does not reach the boundary surface of each layer of the flange, and the force can be spread over the entire flange portion 5 of the paper laminate container 7 to be opened. Therefore, even when sealing is performed with the required sealing strength, it can be easily opened as shown in FIG. At this time, if the width of the unsealed portion is less than 1 mm, the opening force is small, but acts as a delamination force, and delamination occurs. Therefore, the unsealed portion 8 is 1 mm from the outer edge of the flange.
It is necessary to have it on the outer part of the above outer flange. When the thickness of the sealant layer is less than 10 μm, the opening force acts as a destructive force of the sealant layer, and may further lead to delamination, and the thickness of the sealant layer is 10 μm.
It is necessary to be above.
【００１０】[0010]
【実施例】３２０ｇ／ｍ2の上質紙を打ち抜き折り曲げ
成形して図８のように上部内径１６０ｍｍ×１４０ｍ
ｍ、下部内径１４０ｍｍ×１２０ｍｍ、高さ３０ｍｍ、
フランジ幅１０ｍｍの紙層容器を作成した。隣接層に無
水マレイン酸変性ポリプロピレンを、接着層にエチレン
・アクリル酸エステル・無水マレイン酸三元共重合体を
用いたＰＰ（厚み５０μｍ）／隣接層／ＥＶＯＨ／隣接
層／ＰＰ／接着層の構成で全厚み１６０μｍの共押出し
多層シートを１８０℃にて７秒加熱した後、紙基材容器
を型に真空成形したところ多層シートは内容器に紙基材
は外容器として接着層を介して完全に接着し紙ラミ容器
を完成した。この時多層シートと紙基材との接着強度は
５００ｇ／２５ｍｍであった。この紙ラミ容器に蓋材と
してシーラント層に変性ポリプロピレンを使用したＰＥ
Ｔ／ＥＶＯＨ／シーラント層の７７μｍを使用し、２種
類の熱盤形状すなわち紙ラミ容器のフランジ部全面をシ
ール可能な形状（１）及びフランジ部最外部より２ｍｍ
内側をシール可能な形状（２）を使用し、熱盤温度１７
０℃で各３秒間加圧シールした。この時の蓋材と紙ラミ
容器との開封強度は８００ｇ／２５ｍｍであったが、
（１）の場合紙層間が破れ易開封とはならず袋状となっ
たのに対し（２）の場合は良好に開封できた。EXAMPLE A high quality paper of 320 g / m 2 was punched out and bent to form an upper inner diameter of 160 mm × 140 m as shown in FIG.
m, lower inner diameter 140 mm × 120 mm, height 30 mm,
A paper layer container having a flange width of 10 mm was prepared. Constitution of PP (thickness: 50 μm) / adjacent layer / EVOH / adjacent layer / PP / adhesive layer using maleic anhydride-modified polypropylene for adjacent layer and ethylene / acrylic ester / maleic anhydride terpolymer for adhesive layer After heating the co-extruded multi-layer sheet having a total thickness of 160 μm at 180 ° C. for 7 seconds, the paper base container was vacuum-formed into a mold. And a paper lamin container was completed. At this time, the adhesive strength between the multilayer sheet and the paper substrate was 500 g / 25 mm. PE using modified polypropylene for the sealant layer as a lid material in this paper laminating container
Using a T / EVOH / sealant layer of 77 μm, two types of hot plate shapes, that is, a shape (1) capable of sealing the entire flange portion of the paper lamin container, and 2 mm from the outermost portion of the flange portion
Use the shape (2) that can seal the inside and heat platen temperature 17
Pressure sealing was performed at 0 ° C. for 3 seconds each. At this time, the opening strength between the lid material and the paper laminate container was 800 g / 25 mm,
In the case of (1), the paper layer was broken and the bag was not opened easily. On the other hand, in the case of (2), the bag could be opened well.
【００１１】[0011]
【発明の効果】本発明の密封包装体は紙基材の材質に関
わらず安定した易開封可能であり、安価な機能付与密封
容器を得ることが可能である。The sealed package of the present invention can be stably opened easily regardless of the material of the paper base material, and can provide an inexpensive sealed container with a function.
【図１】従来の包装体の概略図FIG. 1 is a schematic view of a conventional package.
【図２】従来の包装体のフランジ部の断面図FIG. 2 is a sectional view of a flange portion of a conventional package.
【図３】従来の包装体の開封状態を示すフランジ部の断
面図FIG. 3 is a cross-sectional view of a flange portion showing an open state of a conventional package.
【図４】本発明の開封口部を有する包装体の概略図FIG. 4 is a schematic view of a package having an opening portion of the present invention.
【図５】本発明の開封口部を特定しない包装体の概略図FIG. 5 is a schematic view of a package of the present invention that does not specify an opening portion.
【図６】本発明の包装体のフランジ部の断面図FIG. 6 is a sectional view of a flange portion of the package of the present invention.
【図７】本発明の包装体の開封状態を示すフランジ部の
断面図FIG. 7 is a cross-sectional view of a flange portion showing an opened state of the package of the present invention.
【図８】実施例の紙層容器の概略図FIG. 8 is a schematic view of a paper layer container of an embodiment.
１ 蓋材 ２ 多層シート ３ 接着層 ４ 紙基材 ５ フランジ部 ６ シール部 ７ 紙ラミ容器 ８ 未シール部 ９ シール盤 １０ 開封口部 DESCRIPTION OF SYMBOLS 1 Cover material 2 Multilayer sheet 3 Adhesive layer 4 Paper base material 5 Flange part 6 Seal part 7 Paper lamination container 8 Unseal part 9 Seal board 10 Opening part
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3E067 AA11 AB01 AB16 BB01A BB25A BC07A CA04 CA17 CA24 EA06 EA11 EA35 GA19 4F100 AK04C AK04J AK07 AK24J AK25J AK69 AK80C AL01C AL07 AR00A AR00D AR00E AT00A BA05 BA07 BA10B BA10E DA01 DA03 DA04 DG10B GB16 GB18 JD02A JD02E JK06 JL11C JL12A JL12D JL14 YY00 ──────────────────────────────────────────────────の Continued on the front page F-term (reference) 3E067 AA11 AB01 AB16 BB01A BB25A BC07A CA04 CA17 CA24 EA06 EA11 EA35 GA19 4F100 AK04C AK04J AK07 AK24J AK25J AK69 AK80C AL01C AL07 AR00A AR00 BA05BA10 DA01 BA00 DA01 BA01 DA00 AT00 JD02A JD02E JK06 JL11C JL12A JL12D JL14 YY00
Claims (3)
接層、バリア層及び基材層を含む全厚みが３０〜３００
μｍの多層シートからなる内容器と紙基材からなる外容
器とをエチレン系共重合体からなる接着層を介して接着
してなるフランジ部を有する紙ラミネート容器と、シー
ラント層及びバリア層を少なくとも有する蓋材とをシー
ラント層同士をシールしてなる包装体において、紙ラミ
ネート容器のシーラント層と蓋材のシーラント層とのシ
ール部の開封強度が５００〜１５００ｇ／２５ｍｍであ
って、紙ラミネート容器と蓋材とのシール部が紙ラミネ
ート容器フランジ部上の少なくとも開封口部に該フラン
ジ部の最外部より１ｍｍ以上の未シール部を有すること
を特徴とする密封包装体。1. A total thickness of 30 to 300 including a sealant layer, an adjacent layer, a barrier layer, and a base material layer having a thickness of 10 μm or more.
A paper laminate container having a flange portion obtained by bonding an inner container formed of a μm multilayer sheet and an outer container formed of a paper base via an adhesive layer formed of an ethylene-based copolymer, at least a sealant layer and a barrier layer. In a package formed by sealing a sealant layer between sealant layers having a lid member, the sealing strength between the sealant layer of the paper laminate container and the sealant layer of the lid member is 500 to 1500 g / 25 mm. A hermetically sealed package wherein a seal portion with a lid member has an unsealed portion of at least 1 mm from the outermost portion of the flange portion at least at an opening of the flange portion of the paper laminate container.
ラミネート容器フランジ部上に該フランジ部の全周にわ
たり最外部より１ｍｍ以上の未シール部を有する請求項
１記載の密封包装体。2. The sealed package according to claim 1, wherein the seal portion between the paper laminate container and the lid member has an unsealed portion of 1 mm or more from the outermost portion on the flange portion of the paper laminate container over the entire circumference of the flange portion.
ル酸エステル・無水マレイン酸三元共重合体である請求
項１または２記載の密封包装体。3. The sealed package according to claim 1, wherein the ethylene-based copolymer is an ethylene / acrylate / maleic anhydride terpolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12495699A JP3546940B2 (en) | 1998-12-21 | 1999-04-30 | Sealed package |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36211598 | 1998-12-21 | ||
| JP10-362115 | 1998-12-21 | ||
| JP12495699A JP3546940B2 (en) | 1998-12-21 | 1999-04-30 | Sealed package |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000238846A true JP2000238846A (en) | 2000-09-05 |
| JP3546940B2 JP3546940B2 (en) | 2004-07-28 |
Family
ID=26461516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12495699A Expired - Fee Related JP3546940B2 (en) | 1998-12-21 | 1999-04-30 | Sealed package |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3546940B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002104474A (en) * | 2000-09-28 | 2002-04-10 | Toppan Printing Co Ltd | Lid material and soft packaging member |
| FR2841772A1 (en) * | 2002-07-05 | 2004-01-09 | Alexandre Fata | Package for single use sterile medical substances has capsules heat sealed to driable sheet |
| JP2022113623A (en) * | 2021-01-25 | 2022-08-04 | 大日本印刷株式会社 | Paper-made container, and paper-made container with lid material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62553U (en) * | 1985-06-19 | 1987-01-06 | ||
| JPH05139463A (en) * | 1991-11-12 | 1993-06-08 | Sumitomo Bakelite Co Ltd | Sealed package |
| JPH06219442A (en) * | 1993-01-26 | 1994-08-09 | Dainippon Printing Co Ltd | Container |
| JPH07187169A (en) * | 1993-12-28 | 1995-07-25 | Dainippon Printing Co Ltd | Paper cup |
| JPH08217147A (en) * | 1995-02-13 | 1996-08-27 | Toppan Printing Co Ltd | Lid material |
| JPH10139032A (en) * | 1996-11-07 | 1998-05-26 | Toppan Printing Co Ltd | Cylindrical paper container |
-
1999
- 1999-04-30 JP JP12495699A patent/JP3546940B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62553U (en) * | 1985-06-19 | 1987-01-06 | ||
| JPH05139463A (en) * | 1991-11-12 | 1993-06-08 | Sumitomo Bakelite Co Ltd | Sealed package |
| JPH06219442A (en) * | 1993-01-26 | 1994-08-09 | Dainippon Printing Co Ltd | Container |
| JPH07187169A (en) * | 1993-12-28 | 1995-07-25 | Dainippon Printing Co Ltd | Paper cup |
| JPH08217147A (en) * | 1995-02-13 | 1996-08-27 | Toppan Printing Co Ltd | Lid material |
| JPH10139032A (en) * | 1996-11-07 | 1998-05-26 | Toppan Printing Co Ltd | Cylindrical paper container |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002104474A (en) * | 2000-09-28 | 2002-04-10 | Toppan Printing Co Ltd | Lid material and soft packaging member |
| FR2841772A1 (en) * | 2002-07-05 | 2004-01-09 | Alexandre Fata | Package for single use sterile medical substances has capsules heat sealed to driable sheet |
| JP2022113623A (en) * | 2021-01-25 | 2022-08-04 | 大日本印刷株式会社 | Paper-made container, and paper-made container with lid material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3546940B2 (en) | 2004-07-28 |
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