JP2000062123A - Laminate for paper container and paper container using the laminate - Google Patents
Laminate for paper container and paper container using the laminateInfo
- Publication number
- JP2000062123A JP2000062123A JP10239949A JP23994998A JP2000062123A JP 2000062123 A JP2000062123 A JP 2000062123A JP 10239949 A JP10239949 A JP 10239949A JP 23994998 A JP23994998 A JP 23994998A JP 2000062123 A JP2000062123 A JP 2000062123A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- layer
- paper layer
- density
- laminated
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、シーラント層を超
音波シール法によってシールされる紙容器の製造に用い
る紙層を基材とした積層材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated material having a paper layer as a base material, which is used for manufacturing a paper container in which a sealant layer is sealed by an ultrasonic sealing method.
【０００２】[0002]
【従来の技術】加圧しながら超音波振動を加え、接着部
の機械的な摩擦と粘弾性挙動を利用して溶融、硬化させ
て接着を行う超音波シール法が紙容器の製造において広
く用いられている。紙層を基材にしてシーラント層を超
音波シールで接着させる時、超音波シール装置の出力を
大きくすると、図２に示す様に超音波装置の工具ホーン
に対応する部分の紙層が焦げて変色して、容器の見栄え
を損なうことが生じたり、焦げないように出力を小さく
するとシーラント層の接着性が低下してしまうことがあ
る。このため、紙層に焦げが生じなく且つ接着性を充分
にするには、超音波シール加工条件の発振時間、加圧、
出力の範囲が限定され、少しの条件変動によってヤレ
（不良品）が発生してしまう。2. Description of the Related Art An ultrasonic sealing method in which ultrasonic vibration is applied while applying pressure, and the adhesive is melted and cured by utilizing the mechanical friction and viscoelastic behavior of the bonded portion is widely used in the manufacture of paper containers. ing. When the sealant layer is bonded by ultrasonic sealing using the paper layer as the base material, if the output of the ultrasonic sealing device is increased, the paper layer at the portion corresponding to the tool horn of the ultrasonic device burns as shown in FIG. Discoloration may occur and the appearance of the container may be impaired, or the adhesiveness of the sealant layer may be reduced if the output is reduced to prevent charring. Therefore, in order to prevent the paper layer from being charred and to ensure sufficient adhesiveness, the oscillation time, pressure, and
The output range is limited, and a slight change in the condition causes cracks (defective products).
【０００３】[0003]
【発明が解決しようとする課題】本発明の課題は、紙層
に焦げが生じなく且つ接着性に優れ、超音波シール条件
の範囲が広く安定した紙容器製品が得られることが可能
な紙容器用積層材を提供することである。DISCLOSURE OF THE INVENTION An object of the present invention is to provide a paper container product which is stable in a wide range of ultrasonic sealing conditions without causing charring in the paper layer and having excellent adhesiveness. The present invention is to provide a laminated material.
【０００４】[0004]
【課題を解決するための手段】上記の問題を解決するた
めになされた請求項１に記載の本発明は、超音波シール
法を用いてトップシール、ボトムシールを行う紙製容器
用の材料であり、少なくとも、紙層を基材としてシーラ
ント層が設けられた積層材において、この紙層の密度が
０．９２ｇ／ｃｍ3 以上であることを特徴とする紙容器
用積層材である。The present invention as set forth in claim 1 made to solve the above problems is a material for a paper container which is top-sealed and bottom-sealed by using an ultrasonic sealing method. At least, in the laminated material in which the sealant layer is provided with the paper layer as the base material, the density of the paper layer is 0.92 g / cm 3 or more.
【０００５】紙層の密度が低い場合は、超音波のエネル
ギーが紙層に吸収され紙層が焦げてしまい、また、融着
すべきシーラント層にエネルギーが伝わらないために接
着されない現象が起こっている。When the density of the paper layer is low, the energy of ultrasonic waves is absorbed by the paper layer and the paper layer is burnt, and the energy is not transmitted to the sealant layer to be fused, so that the phenomenon of not being adhered occurs. There is.
【０００６】また、請求項２に記載の本発明は、前記シ
ーラント層がポリエチレン（ＰＥ）、ポリプロピレン
（ＰＰ）、ポリエチレンテレフタレート（ＰＥＴ）、ポ
リ塩化ビニル（ＰＶＣ），ポリビニルアルコール（ＰＶ
Ａ）等の熱可塑性樹脂である請求項１に記載の紙容器積
層材である。Further, in the present invention according to claim 2, the sealant layer is polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyvinyl alcohol (PV).
The paper container laminate according to claim 1, which is a thermoplastic resin such as A).
【０００７】また、請求項３に記載の本発明は、請求項
１又は請求項２のいずれか１項に記載の紙容器用積層材
で作製された紙容器である。The present invention according to claim 3 is a paper container made of the laminated material for paper container according to any one of claims 1 and 2.
【０００８】[0008]
【発明の実施の形態】本発明を図に基づいて説明する。
図１は一実施例である紙容器用積層材の構成断面図を示
す。紙層として密度ｄ＝０．９２ｇ／ｃｍ3 、坪量ｗ＝
２３０ｇ／ｍ 2 である板紙（１２）を基材として、光や
酸素や水分に対するバリア性機能を持たせる為に片面側
にエチレンーメタアクリル酸共重合（ＥＭＭＡ）を接着
剤とし、アルミニウム箔（１４）がラミネート加工され
ているポリエチレンテレフタレート（ＰＥＴ）（１５）
フィルムを貼り合わせ、このＰＥＴ（１５）フィルム上
にシーラント（１６）を、基材のもう一方の片面には容
器の外側となるため光沢性、耐水性等を向上させる機能
を持たせる為に、ポリエチレン（ＰＥ）を積層した構成
になっている。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described with reference to the drawings.
FIG. 1 shows a cross-sectional view of the constitution of a laminated material for paper containers, which is an embodiment.
You Density d = 0.92 g / cm as paper layer3, Basis weight w =
230 g / m 2Using the paperboard (12) which is
One side to provide a barrier function against oxygen and moisture
Adhesion of ethylene-methacrylic acid copolymer (EMMA) to
Aluminum foil (14) is laminated as an agent
Polyethylene terephthalate (PET) (15)
Laminate the film and put it on this PET (15) film
Sealant (16) on the other side of the substrate
Function to improve gloss and water resistance as it is on the outside of the container
A structure in which polyethylene (PE) is laminated in order to have
It has become.
【０００９】超音波シールで接着加工される紙容器用積
層材は、最低限、紙とシーラント層を有していれば構わ
ないが、容器に充填される内容物、商品として要求され
る酸素ガス、炭酸ガス、光線に対するバリア性、耐油
性、耐水性、耐熱性、機械的強度、外観の光沢性や透明
性等を満足させるように多種多様な樹脂、金属、無機酸
化物等の材料を用い、層構成も多様な形態が取られてい
る。The laminated material for a paper container which is adhered by ultrasonic sealing may have at least a paper and a sealant layer, but the contents filled in the container and the oxygen gas required as a product , Carbon dioxide, light barrier, oil resistance, water resistance, heat resistance, mechanical strength, gloss and transparency of appearance, etc., using various kinds of resins, metals, inorganic oxides, etc. The layered structure also takes various forms.
【００１０】用いられる樹脂として、ポリエチレンテレ
フタレート、ポリエチレンブチラート、ポリエチレンナ
フタレート、ポリアミド、ポリカーボネト、ポリプロピ
レン、ポリ塩化ビニール、ポリエチレン、ナイロン等が
汎用されている。また、バリア性を持たせる為に、アル
ミニウム箔、ステンレス箔を貼り合わせたもの、アルミ
ニウム、チタン、珪素等の金属若しくは酸化珪素、酸化
マグネシウム、酸化チタンの無機酸化物、窒化珪素、窒
化チタン等の無機窒化物を蒸着させたフィルムを用いる
こともある。As the resin used, polyethylene terephthalate, polyethylene butyrate, polyethylene naphthalate, polyamide, polycarbonate, polypropylene, polyvinyl chloride, polyethylene, nylon and the like are widely used. Further, in order to provide a barrier property, aluminum foil, stainless steel foil bonded together, aluminum, titanium, metal such as silicon or silicon oxide, magnesium oxide, inorganic oxide of titanium oxide, silicon nitride, titanium nitride, etc. A film obtained by vapor-depositing an inorganic nitride may be used.
【００１１】[0011]
【実施例】紙層である板紙を基材として下記の構成の実
施例及び比較例の紙容器用積層材を作製し、紙の密度に
よってどのような差が生じるか、超音波シールで接着試
験を行い紙層の焦げ及びシーラント層の接着性を調べ
た。[Examples] Using a paperboard, which is a paper layer, as a base material, laminates for paper containers having the following configurations and examples were prepared, and an adhesive test was performed by ultrasonic sealing to see what difference would occur depending on the density of the paper. Then, the charring of the paper layer and the adhesiveness of the sealant layer were examined.
【００１２】［実施例１］シーラントとして、ポリエチ
レンテレフタレート（ＰＥＴ）を用いた場合。
＜層構成＞
Ｍ１６Ｐ(20)／板紙（密度d=0.95) ／ニュークレル(20)
／ＡＬ(7) ／Ｅ５２００(12)／バーリエＳＥ(60)
（ ）内の数値は層厚を示し、単位はμｍである。以
下、同様に表現する。[Example 1] When polyethylene terephthalate (PET) was used as a sealant. <Layer composition> M16P (20) / paperboard (density d = 0.95) / Nucrel (20)
/ AL (7) / E5200 (12) / Vallier SE (60) The numerical value in () indicates the layer thickness, and the unit is μm. Hereinafter, the same expression will be applied.
【００１３】［比較例１］密度ｄ＝０．８６ｇ／ｃｍ3
の板紙を用いた以外は実施例１と同じ構成である。
＜層構成＞
Ｍ１６Ｐ(20)／板紙（密度d=0.86) ／ニュークレル(20)
／ＡＬ(7) ／Ｅ５２００(12)／バーリエＳＥ(60)Comparative Example 1 Density d = 0.86 g / cm 3
The configuration is the same as that of the first embodiment except that the paperboard of No. 1 is used. <Layer composition> M16P (20) / paperboard (density d = 0.86) / Nucrel (20)
/ AL (7) / E5200 (12) / Barrier SE (60)
【００１４】Ｍ１６Ｐは三井化学（株）製の低密度ポリ
エチレン（ＬＤＰＥ）、ニュークレルは三井デュポンポ
リケミカル（株）製のエチレン−メタアクリル酸共重合
体（ＥＭＭＡ）、Ｅ５２００は東洋紡（株）製のポリエ
チレンテレフタレート（ＰＥＴ）、バーリエＳＥはアイ
セロ化学（株）製のホモＰＥＴシーラント剤である。M16P is a low-density polyethylene (LDPE) manufactured by Mitsui Chemicals, Inc., Nucrel is an ethylene-methacrylic acid copolymer (EMMA) manufactured by DuPont Mitsui Polychemicals, and E5200 is manufactured by Toyobo Co., Ltd. Polyethylene terephthalate (PET) and Barrier SE are homo PET sealant agents manufactured by Aicero Chemical Co., Ltd.
【００１５】上記の「実施例１」と「比較例１」の焦げ
度合い、接着性の結果を表１に示す。ここで、焦げ度合
いの〇は焦げ無し、△は若干焦げ有り、×は焦げ著しい
ことを示し、接着性の〇はシーラント層での接着性良
好、×は接着性不良であることを示す。以下、同様に表
現する。Table 1 shows the results of the degree of charring and the adhesiveness of the above "Example 1" and "Comparative Example 1". Here, ◯ of the degree of scorching indicates that there is no scorching, Δ indicates that there is some scorching, and x indicates that the characteristic of scorching is remarkable. Hereinafter, the same expression will be applied.
【００１６】[0016]
【表１】 [Table 1]
【００１７】［実施例２］シーラントとして、ポリエチ
レン（ＰＥ）を用いた場合
＜層構成＞
Ｍ１６Ｐ(20)／板紙（密度d=0.95) ／ニュークレル(20)
／ＡＬ(7) ／Ｅ５２００(12)／Ｍ１６Ｐ(60)[Example 2] When polyethylene (PE) was used as a sealant <Layer constitution> M16P (20) / paperboard (density d = 0.95) / Nucrel (20)
/ AL (7) / E5200 (12) / M16P (60)
【００１８】［比較例２］
＜層構成＞密度ｄ＝０．８６ｇ／ｃｍ3 の板紙を用いた
以外は実施例２と同じ構成である。
Ｍ１６Ｐ(20)／板紙（密度d=0.86) ／ニュークレル(20)
／ＡＬ(7) ／Ｅ５２００(12)／Ｍ１６Ｐ(60)[Comparative Example 2] <Layer constitution> The constitution is the same as that of Example 2 except that the paperboard having the density d = 0.86 g / cm 3 is used. M16P (20) / Paperboard (Density d = 0.86) / Nucrel (20)
/ AL (7) / E5200 (12) / M16P (60)
【００１９】上記の「実施例２」と「比較例２」の焦げ
度合い、接着性の結果を表２に示す。Table 2 shows the results of the degree of scorching and the adhesiveness of the above "Example 2" and "Comparative Example 2".
【表２】 [Table 2]
【００２０】シーラント層がポリエチレンの場合は、融
点が低いので弱い条件でもシール可能であるが、しか
し、紙焦げはポリエチレンテレフタレートの時と同等に
発生する。紙層の密度を高めることで焦げの発生を防止
することができることを確認した。When the sealant layer is made of polyethylene, it has a low melting point and thus can be sealed under weak conditions. However, paper scorching occurs as in the case of polyethylene terephthalate. It was confirmed that the occurrence of charring can be prevented by increasing the density of the paper layer.
【００２１】［実施例３］次の層構成の紙容器用積層材
において、紙層の密度を変化させて超音波シール時の紙
層の焦げ度合いを調べた。
＜層構成＞
Ｍ１６Ｐ(20)／板紙（密度を変化）／ニュークレル(20)
／ＡＬ(7) ／Ｅ５２００(12)／バーリエＳＥ(60)
この結果を表３に示す。[Example 3] In a laminated material for a paper container having the following layer structure, the density of the paper layer was changed to examine the degree of charring of the paper layer during ultrasonic sealing. <Layer composition> M16P (20) / Paperboard (change density) / Nucrel (20)
/ AL (7) / E5200 (12) / Vallier SE (60) The results are shown in Table 3.
【００２２】[0022]
【表３】 [Table 3]
【００２３】上記の表３から紙層の密度が０．９２ｇ／
ｃｍ3 以上であれば紙層の焦げが生じないことが確認さ
れた。From Table 3 above, the density of the paper layer is 0.92 g /
It was confirmed that the paper layer did not scorce if it was at least cm 3 .
【００２４】[0024]
【発明の効果】本発明の紙層の密度が０．９２ｇ／ｃｍ
3 以上の紙容器用積層材で用いることにより、超音波シ
ール加工時に発生する紙層の焦げを無くすることがで
き、且つシーラント層の接着性も良好な紙容器を提供す
ることが可能になる。また、焦げないように、弱い条件
で超音波シール加工を行う必要がなく、シール加工条件
が広いため、安定した製品が得られる。The density of the paper layer of the present invention is 0.92 g / cm.
By using a laminated material for three or more paper containers, it is possible to eliminate the charring of the paper layer that occurs during ultrasonic sealing, and it is possible to provide a paper container with good adhesiveness of the sealant layer. . Further, it is not necessary to perform ultrasonic sealing processing under weak conditions so as not to burn, and since the sealing processing conditions are wide, stable products can be obtained.
【図１】本発明の紙容器用積層材の１例を示す構成断面
図である。FIG. 1 is a structural cross-sectional view showing an example of a laminated material for paper containers of the present invention.
【図２】超音波シール時における紙層の焦げが発生する
状況を説明する紙容器用積層材の断面図である。FIG. 2 is a cross-sectional view of a laminated material for a paper container, which illustrates a situation where charring of a paper layer occurs during ultrasonic sealing.
１０…紙容器用積層材 １１…低密度ポリエチレン １２…紙層 １３…エチレンーメタアクリル酸共重合体 １４…アルミニウム １５…ポリエチレンテレフタレート １６…シーラント層 １８…接着部 ２０…焦げ部 ３０…工具ホーン ３１…台座 10 ... Laminated material for paper containers 11 ... Low density polyethylene 12 ... Paper layer 13 ... Ethylene-methacrylic acid copolymer 14 ... Aluminum 15 ... Polyethylene terephthalate 16 ... Sealant layer 18 ... Adhesive part 20 ... Burning part 30 ... Tool horn 31 ... Pedestal
Claims (3)
トムシールを行う紙製容器用の材料であり、少なくと
も、紙層を基材としてシーラント層が設けられた積層材
において、該紙層の密度が０．９２ｇ／ｃｍ3 以上であ
ることを特徴とする紙容器用積層材。1. A material for a paper container for performing a top seal and a bottom seal by using an ultrasonic sealing method, and at least in a laminated material provided with a sealant layer using a paper layer as a base material, A laminated material for paper containers having a density of 0.92 g / cm 3 or more.
Ｅ）、ポリプロピレン（ＰＰ）、ポリエチレンテレフタ
レート（ＰＥＴ）、ポリ塩化ビニル（ＰＶＣ），ポリビ
ニルアルコール（ＰＶＡ）等の熱可塑性樹脂である請求
項１に記載の紙容器積層材。2. The sealant layer is polyethylene (P
The paper container laminate according to claim 1, which is a thermoplastic resin such as E), polypropylene (PP), polyethylene terephthalate (PET), polyvinyl chloride (PVC), or polyvinyl alcohol (PVA).
載の紙容器積層材で作製された紙容器。3. A paper container made of the paper container laminated material according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23994998A JP4513133B2 (en) | 1998-08-26 | 1998-08-26 | Laminate for paper container and paper container using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23994998A JP4513133B2 (en) | 1998-08-26 | 1998-08-26 | Laminate for paper container and paper container using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000062123A true JP2000062123A (en) | 2000-02-29 |
| JP4513133B2 JP4513133B2 (en) | 2010-07-28 |
Family
ID=17052231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23994998A Expired - Fee Related JP4513133B2 (en) | 1998-08-26 | 1998-08-26 | Laminate for paper container and paper container using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4513133B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2883697A4 (en) * | 2013-10-07 | 2016-05-18 | Nakamoto Packs Co Ltd | Laminate for paper container, and paper container obtained therefrom |
| JP2020116880A (en) * | 2019-01-25 | 2020-08-06 | 大日本印刷株式会社 | Packaging material, and packaging bag including the packaging material, and method for producing the packaging material |
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| JPH06293114A (en) * | 1993-04-09 | 1994-10-21 | Toppan Printing Co Ltd | Laminated material for paper container |
| JPH0724973A (en) * | 1993-07-14 | 1995-01-27 | Mitsubishi Chem Corp | Laminate easy in layer peeling treatment |
| JPH0752339A (en) * | 1993-08-12 | 1995-02-28 | Toppan Printing Co Ltd | Laminated material for paper container |
| JPH0885519A (en) * | 1994-09-19 | 1996-04-02 | Toppan Printing Co Ltd | Sealing method for paper container of liquid |
| JPH08183139A (en) * | 1994-12-28 | 1996-07-16 | Tokyo Seishi Kk | Paper vessel |
| JPH0958650A (en) * | 1995-08-17 | 1997-03-04 | Tokyo Seishi Kk | Cardboard container |
| JPH106463A (en) * | 1996-06-21 | 1998-01-13 | Tokyo Seishi Kk | Paper container |
| JPH10128841A (en) * | 1996-10-28 | 1998-05-19 | Inoac Corp | Plastic sheet with grain pattern, molding method thereof, and vacuum forming mold used therein |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2883697A4 (en) * | 2013-10-07 | 2016-05-18 | Nakamoto Packs Co Ltd | Laminate for paper container, and paper container obtained therefrom |
| US9926101B2 (en) | 2013-10-07 | 2018-03-27 | Nakamoto Packs Co., Ltd. | Laminated material for paper containers and paper containers using it |
| JP2020116880A (en) * | 2019-01-25 | 2020-08-06 | 大日本印刷株式会社 | Packaging material, and packaging bag including the packaging material, and method for producing the packaging material |
| JP7322413B2 (en) | 2019-01-25 | 2023-08-08 | 大日本印刷株式会社 | Packaging material, packaging bag using the packaging material, and method for manufacturing the packaging material |
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| JP4513133B2 (en) | 2010-07-28 |
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