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JP2003200980A - Heat insulating paper cup having barrier property - Google Patents

Heat insulating paper cup having barrier property

Info

Publication number
JP2003200980A
JP2003200980A JP2002000457A JP2002000457A JP2003200980A JP 2003200980 A JP2003200980 A JP 2003200980A JP 2002000457 A JP2002000457 A JP 2002000457A JP 2002000457 A JP2002000457 A JP 2002000457A JP 2003200980 A JP2003200980 A JP 2003200980A
Authority
JP
Japan
Prior art keywords
paper cup
layer
heat insulating
barrier
cup
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.)
Pending
Application number
JP2002000457A
Other languages
Japanese (ja)
Inventor
Katsuhiro Osaki
勝浩 大崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP2002000457A priority Critical patent/JP2003200980A/en
Publication of JP2003200980A publication Critical patent/JP2003200980A/en
Pending legal-status Critical Current

Links

Landscapes

  • Packages (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To package a commodity comprising two packaging vessels of a flexible packaging bag and an heat insulating paper cup by a packaging vessel comprising only one paper cup. <P>SOLUTION: A barrel member to constitute at least a barrel part (11) of a paper cup which comprises the barrel part (11) and a bottom part (12) and has a mouth edge part (13) with a circumferential edge of an opening part curled outwardly is formed of a composite sheet (6) in which an heat insulating layer (1)/a base layer (2)/a barrier layer (3)/a PET film (4)/a sealant layer (5) are successively laminated from a face side, and the heat insulating layer (1) is formed of a foamed polyethylene resin with an LDPE resin formed therein. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は紙カップ本体のみか
らなる断熱紙カップに関するものであり、特には、ガス
バリア性や水蒸気バリア性を有するバリア性断熱紙カッ
プに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating paper cup consisting only of a paper cup body, and more particularly to a barrier heat insulating paper cup having a gas barrier property and a water vapor barrier property.

【0002】[0002]

【従来の技術】従来、例えば、みそ汁、カップスープな
どのような、防湿性、ガス透過性等のバリア機能を必要
とする断熱性を有するカップ用途の商品は、一般的には
粉末状のみそ汁の素やスープの素をアルミニウム箔を積
層した軟包装袋に充填し、その充填した軟包装袋を紙カ
ップと一緒にして販売されている。
2. Description of the Related Art Conventionally, products such as miso soup, cup soup and the like having a heat insulating property requiring a barrier function such as moisture resistance and gas permeability are generally powdered miso soups. It is sold in a soft packaging bag in which aluminum foil and soup stock are laminated with aluminum foil, and the filled soft packaging bag is put together with a paper cup.

【0003】しかしながらこの方式では、紙カップと軟
包装袋の二重包装形式になってしまいコスト高になる。
また、二重包装形式のため使用後に廃棄するゴミの総量
が増す。消費者の手元での調理時に、袋を破り、カップ
に袋内の内容物を移し、それから調理を始める、という
動作を必要とし、調理のための作業が煩雑になる、等の
不具合点がある。
However, in this system, the cost is increased because the paper cup and the soft packaging bag are double-wrapped.
In addition, the double packaging format increases the total amount of waste discarded after use. When the food is cooked by the consumer, the operation of breaking the bag, transferring the contents in the bag to the cup, and then starting the cooking is required, and the work for cooking becomes complicated. .

【0004】[0004]

【発明が解決しようとする課題】本発明は、みそ汁やカ
ップスープのような軟包装袋と断熱性紙カップを一緒に
して販売しているような商品を収納する容器に関する以
上のような問題点を解決するためになされたもので、バ
リア機能を有する断熱紙カップを提供することを課題と
する。
SUMMARY OF THE INVENTION The present invention relates to a container for storing a product such as a miso soup or cup soup, which is sold together with a soft packaging bag and an insulating paper cup. The present invention was made in order to solve the problem, and an object thereof is to provide an insulating paper cup having a barrier function.

【0005】[0005]

【課題を解決するための手段】本発明の請求項1の発明
は、胴部と底部とからなり開口部周縁が外側にカールし
た口縁部を有する紙カップの少なくとも胴部を構成する
胴部材が、表面側より断熱層/基材層/バリア層/ポリ
エチレンテレフタレート(PET)フィルム/シーラン
ト層が順次積層された複合シートから構成され、前記断
熱層が低密度ポリエチレン樹脂を発泡させた発泡ポリエ
チレン樹脂からなることを特徴とするバリア性断熱紙カ
ップである。
According to a first aspect of the present invention, there is provided a body member which forms at least a body portion of a paper cup having a body portion and a bottom portion, and a peripheral edge of the opening portion curled outward. , A composite sheet in which a heat insulating layer / base material layer / barrier layer / polyethylene terephthalate (PET) film / sealant layer are sequentially laminated from the surface side, and the heat insulating layer is made of a foamed polyethylene resin obtained by foaming a low density polyethylene resin. It is a heat insulating paper cup having a barrier property.

【0006】このように請求項1記載の発明によれば、
紙カップを構成する胴部材が表面側より断熱層/基材層
/バリア層/PETフィルム/シーラント層が順次積層
された複合シートから構成され、前記断熱層が低密度ポ
リエチレン樹脂を発泡させた発泡ポリエチレン樹脂から
なるので、本発明の紙カップはバリア機能を有すると共
に断熱性を有する。
Thus, according to the invention of claim 1,
The body member constituting the paper cup is composed of a composite sheet in which a heat insulating layer / base material layer / barrier layer / PET film / sealant layer are sequentially laminated from the front side, and the heat insulating layer is a foamed polyethylene foamed with a low density polyethylene resin. Since it is made of resin, the paper cup of the present invention has a barrier function and heat insulation.

【0007】また、請求項2の発明は、請求項1記載の
発明において、前記複合シートを構成するPETフィル
ムが着色されていることを特徴とするバリア性断熱紙カ
ップである。
The invention of claim 2 is the barrier heat insulating paper cup according to the invention of claim 1, wherein the PET film constituting the composite sheet is colored.

【0008】このように請求項2記載の発明によれば、
前記複合シートを構成するPETフィルムが着色されて
いるので、バリア層の色を消すことができる。例えば、
バリア層としてアルミニウム箔(Al)を使用し、PE
Tフィルムが白色に着色されていれば、Alの色を消し
てより基材層である紙に見せることができる。
Thus, according to the invention of claim 2,
Since the PET film forming the composite sheet is colored, the color of the barrier layer can be erased. For example,
Aluminum foil (Al) is used as a barrier layer and PE
If the T film is colored white, the color of Al can be erased to make it look more like the paper as the base material layer.

【0009】また、請求項3の発明は、請求項1又は2
記載の発明において、前記紙カップの胴部の接合部分の
内側は、先端から所定長さだけ複合シートの厚みの半分
を削除し、削り取った残りの半分を削除面が内側になる
ように折り返した紙端面保護が行われていることを特徴
とするバリア性断熱紙カップである。
The invention of claim 3 is the same as claim 1 or 2.
In the invention described above, the inside of the joint portion of the body portion of the paper cup is a paper obtained by deleting half of the thickness of the composite sheet from the tip by a predetermined length and folding back the remaining half that is scraped off so that the surface to be deleted is on the inside. It is a heat insulating paper cup having a barrier characteristic that end face protection is performed.

【0010】このように請求項3記載の発明によれば、
紙カップの胴部の接合部分の内側は、先端から所定長さ
だけ複合シートの厚みの半分を削除し、削り取った残り
の半分を削除面が内側になるように折り返した紙端面保
護が行われているので、バリア機能をより高度にするこ
とができる。
Thus, according to the invention of claim 3,
The inside of the joint part of the body of the paper cup is protected by removing half of the thickness of the composite sheet from the tip by a predetermined length and folding back the remaining half so that the surface is on the inside. Therefore, the barrier function can be made higher.

【0011】[0011]

【発明の実施の形態】本発明のバリア性断熱紙カップを
一実施形態に基づいて以下に詳細に説明する。本発明の
バリア性断熱紙カップは、例えば、図1(a)、(b)
に示すように、胴部(11)と底部(12)とからなり
開口部周縁が外側にカールした口縁部(13)を有する
紙カップの少なくとも胴部を構成する胴部材が、表面側
より断熱層(1)/基材層(2)/バリア層(3)/P
ETフィルム(4)/シーラント層(5)が順次積層さ
れた複合シート(6)から構成され、前記断熱層(1)
が低密度ポリエチレン樹脂を発泡させた発泡ポリエチレ
ン樹脂からなるバリア性断熱紙カップ(10)である。
BEST MODE FOR CARRYING OUT THE INVENTION The barrier insulating paper cup of the present invention will be described below in detail based on one embodiment. The barrier insulating paper cup of the present invention is, for example, as shown in FIGS. 1 (a) and 1 (b).
As shown in FIG. 5, the body member constituting at least the body portion of the paper cup having the body portion (11) and the bottom portion (12) and having the rim portion (13) in which the peripheral edge of the opening is curled outward is heat-insulated from the surface side. Layer (1) / Base material layer (2) / Barrier layer (3) / P
The heat insulating layer (1) comprises a composite sheet (6) in which an ET film (4) / sealant layer (5) are sequentially laminated.
Is a barrier heat insulating paper cup (10) made of a foamed polyethylene resin obtained by foaming a low density polyethylene resin.

【0012】また、図2に示すように、紙カップの胴部
(11)の接合部分(15)の内側は、先端から所定長
さだけ複合シート(6)の厚みの半分を削除し、削り取
った残りの半分を削除面が内側になるように折り返した
紙端面保護(16)を施すことにより、紙端面が収容す
る内容物に直接触れないようになり、ガスバリア性がさ
らに向上したり、液体を収容した場合など耐水性がさら
に向上する。
As shown in FIG. 2, the inside of the joint portion (15) of the body portion (11) of the paper cup is scraped off by removing a half of the thickness of the composite sheet (6) from the tip by a predetermined length. By applying the paper edge protection (16) in which the other half is folded back so that the deleted surface is on the inside, the paper edge does not come into direct contact with the stored contents, and the gas barrier property is further improved and liquid is protected. Water resistance is further improved when stored.

【0013】つぎに紙カップを構成する複合シート
(6)について詳述する。断熱層(1)は、紙カップの
表面側に配置され、直接使用者の手指に触れる。そのた
め、断熱効果に優れたものである必要がある。断熱層
(1)は、低密度ポリエチレン樹脂からなり、例えば、
成形された紙カップを加熱炉等で加熱して、後記する紙
基材に含有される水分を気化させ、その蒸気を低密度ポ
リエチレン樹脂に抱かせることによって紙カップの表面
側に凹凸状の断熱層を形成させ断熱性を持たせる。この
ため、断熱層に使用する低密度ポリエチレン樹脂は、後
記するシーラント層(5)して使用する低密度ポリエチ
レン樹脂よりも、融点の低い樹脂を使用する必要があ
る。
Next, the composite sheet (6) constituting the paper cup will be described in detail. The heat insulation layer (1) is arranged on the front surface side of the paper cup and directly touches the user's finger. Therefore, it is necessary that the heat insulating effect is excellent. The heat insulation layer (1) is made of a low density polyethylene resin, for example,
By heating the molded paper cup in a heating furnace, etc., the moisture contained in the paper base material described below is vaporized, and the vapor is held in the low density polyethylene resin to form an uneven heat insulating layer on the surface side of the paper cup. It is made to have heat insulation. Therefore, the low density polyethylene resin used for the heat insulating layer needs to have a lower melting point than the low density polyethylene resin used for the sealant layer (5) described later.

【0014】基材層(2)は、カップの保形性を維持す
る紙の層で、成形適性を考慮するとカップ原紙が好適に
使用できる。紙カップの大きさに応じて坪量を変えてい
る。一般的には、100〜450g/m2 程度の坪量の
カップ原紙が使用される。必要に応じて印刷層を設ける
ことができる。
The base material layer (2) is a paper layer which maintains the shape-retaining property of the cup, and in consideration of moldability, cup base paper can be preferably used. The basis weight is changed according to the size of the paper cup. Generally, a cup base paper having a basis weight of about 100 to 450 g / m 2 is used. A printing layer can be provided if necessary.

【0015】バリア層(3)は、紙カップのガスバリア
性、水蒸気バリア性、保香性を維持する層で、Alが好
適に使用できるが、Alのほかに、ナイロンフィルム、
エチレンビニルアルコール共重合樹脂(EVOH)フィ
ルム等のプラスチックフィルム単体、あるいは前記の材
料を適宜に貼り合わせた複合フィルムを使用しても良
い。なお、バリア層(3)を配置した複合シート(6)
を底部材にも使用すると、出来上がった紙カップのバリ
ア性はさらに向上する。
The barrier layer (3) is a layer for maintaining the gas barrier property, the water vapor barrier property and the fragrance retaining property of the paper cup, and Al can be preferably used, but in addition to Al, a nylon film,
A plastic film simple substance such as an ethylene vinyl alcohol copolymer resin (EVOH) film or a composite film obtained by appropriately laminating the above materials may be used. The composite sheet (6) on which the barrier layer (3) is arranged
If is also used as the bottom member, the barrier property of the finished paper cup is further improved.

【0016】PETフィルム(4)は、バリア層(3)
と後記するシーラント層(5)の間に配置される層で、
カップ成形時の絞り加工や折り曲げ加工によって生じる
バリア層への影響を最小限に押さえる効果があり、PE
Tフィルム(4)の層を設けることによりカップ成形に
より発生するピンホールは最小限に押さえられる。
The PET film (4) has a barrier layer (3).
And a layer arranged between the sealant layer (5) described below,
PE has the effect of minimizing the effect on the barrier layer caused by drawing and bending during cup molding.
By providing the layer of T film (4), pinholes generated by cup molding are minimized.

【0017】PETフィルム(4)として着色されたフ
ィルムを使用することにより、PETフィルムの内側に
配置されるバリア層(3)は隠蔽される。このことによ
り、例えば、バリア層としてAlを使用し、白色に着色
されたPETフィルムを用いた場合、あたかもAlは使
用していないように見せることができる。
By using a colored film as the PET film (4), the barrier layer (3) located inside the PET film is hidden. Accordingly, for example, when Al is used as the barrier layer and a PET film colored in white is used, it can be seen as if Al is not used.

【0018】PETフィルムの着色方法としては、透明
PET樹脂に着色ペレットをブレンドするなどして着色
PETフィルムを作製する方法のほかに、透明PETフ
ィルムにインキ等で印刷層を設ける方法でも良い。
As a method of coloring the PET film, a method of forming a colored PET film by blending colored pellets with a transparent PET resin or the like, or a method of providing a printing layer with ink or the like on the transparent PET film may be used.

【0019】シーラント層(5)は複合フィルム(6)
の最内層に配置され、紙カップの胴部を構成する胴部材
の一方の端縁ともう一方の端縁を重ねて接合したり、胴
部材と底部材を接合する際の接着層の役割を担う。その
ため、熱融着性が必要で、一般的には低密度ポリエチレ
ン樹脂、線状低密度ポリエチレン樹脂(L−LDPE)
等が好適に使用できる。なお、底部材に使用する複合シ
ートは、断熱層がシーラント層の役目を果している。
The sealant layer (5) is a composite film (6)
Is placed in the innermost layer of the paper cup and plays a role of an adhesive layer when one end and the other end of the body member forming the body part of the paper cup are overlapped and joined, or when the body member and the bottom member are joined. . Therefore, heat fusion property is required, and generally low density polyethylene resin, linear low density polyethylene resin (L-LDPE)
And the like can be preferably used. In the composite sheet used for the bottom member, the heat insulating layer functions as a sealant layer.

【0020】複合シート(6)は、ドライラミネート
法、溶融樹脂押出しラミネート法等の公知のラミネート
法を用いることにより容易に作製することができる。
The composite sheet (6) can be easily produced by using a known laminating method such as a dry laminating method or a molten resin extrusion laminating method.

【0021】[0021]

【実施例】以下実施例により本発明のバリア性断熱紙カ
ップを詳細に説明する。 〈実施例1〉まず、基材層(2)として水分管理が十分
に施された坪量240g/m2 のカップ原紙を、バリア
層(3)として厚さ12μmのAlを、PETフィルム
(4)として厚さ12μmの透明PETフィルムを、そ
れぞれ準備した。
EXAMPLES The barrier insulating paper cup of the present invention will be described in detail below with reference to examples. Example 1 First, as the base material layer (2), a cup base paper having a basis weight of 240 g / m 2 with sufficient moisture management was applied, and as the barrier layer (3), 12 μm thick Al was used, and the PET film (4) was used. As a result, transparent PET films each having a thickness of 12 μm were prepared.

【0022】つぎに、Alと透明PETフィルムを二液
反応型のポリエステル樹脂系接着剤を介してドライラミ
ネート法により貼り合わせ、積層フィルムとした。この
積層フィルムのAl面と先に準備したカップ原紙を低密
度ポリエチレン樹脂を介して溶融樹脂押出しラミネート
法により貼り合わせ、積層シートとした。
Next, Al and a transparent PET film were bonded together by a dry lamination method via a two-component reaction type polyester resin adhesive to form a laminated film. The Al surface of this laminated film and the previously prepared cup base paper were laminated with a low density polyethylene resin by a molten resin extrusion laminating method to form a laminated sheet.

【0023】ついで、この積層シートのPETフィルム
面にL−LDPE樹脂を溶融樹脂押出しラミネート法に
より30μmの厚さに積層し、第2積層シートとした。
Then, a L-LDPE resin was laminated on the PET film surface of this laminated sheet to a thickness of 30 μm by a molten resin extrusion laminating method to obtain a second laminated sheet.

【0024】最後にこの第2積層シートのカップ原紙面
にLDPE樹脂を溶融樹脂押出しラミネート法により6
0μmの厚さに積層し、60μmLDPE樹脂/240
g/m2 カップ原紙/12μmAl/12μm透明PE
Tフィルム/30μmL−LDPE樹脂の層構成からな
る複合シート(6)を作製した。
Finally, the LDPE resin is extruded on the surface of the cup base paper of the second laminated sheet by molten resin extrusion and laminated by a laminating method.
Layered to a thickness of 0 μm, 60 μmL DPE resin / 240
g / m 2 cup base paper / 12μm Al / 12μm transparent PE
A composite sheet (6) having a layer structure of T film / 30 μmL-LDPE resin was produced.

【0025】この複合シートから所定寸法の胴部材用ブ
ランクと底部材用ロールを作製し、一般的に公知の紙カ
ップ成形機を用いて、所定寸法の断熱層を形成させる前
の紙カップを作製した。
A blank for a body member and a roll for a bottom member having a predetermined size were prepared from the composite sheet, and a paper cup before forming a heat insulating layer having a predetermined size was prepared using a generally known paper cup molding machine.

【0026】この紙カップを加熱炉で加熱してカップ原
紙に含有されている水分を気化させ、その蒸気をLDP
E樹脂に抱かせて発泡させて断熱層(1)である発泡樹
脂層を形成させ、実施例1のバリア性断熱紙カップ(1
0)とした(図1(a)、(b)参照)。
The paper cup is heated in a heating furnace to vaporize the water contained in the base paper of the cup, and the vapor is LDP.
The E resin is held and foamed to form a foamed resin layer which is the heat insulating layer (1), and the barrier heat insulating paper cup (1) of Example 1 is formed.
0) (see FIGS. 1 (a) and 1 (b)).

【0027】このバリア性断熱紙カップは、みそ汁カッ
プとして十分適用可能な紙カップである。
The barrier insulating heat-insulating paper cup is a paper cup that is sufficiently applicable as a miso soup cup.

【0028】[0028]

【発明の効果】上記のように、本発明のバリア性断熱紙
カップは、従来の軟包装袋と断熱紙カップの方式に十分
対抗でき、軟包装袋は不要となって、紙カップに直詰め
充填が可能になり、包装材料の削減が可能になる。ま
た、着色PETフィルムを用いることにより、バリア
層、例えば、Alを消すことが可能になり、紙単独カッ
プに似せることができる。
As described above, the barrier insulating heat-insulating paper cup of the present invention can sufficiently oppose the conventional soft packaging bag and heat-insulating paper cup methods, and the soft packaging bag is not required, and the paper cup can be directly packed and filled. Therefore, it is possible to reduce the packaging material. Also, the use of a colored PET film allows the barrier layer, eg, Al, to be erased, allowing it to resemble a paper-only cup.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のバリア性断熱紙カップの一実施例を示
す、(a)は部分断面説明図であり、(b)は(a)の
A部拡大説明図である。
FIG. 1 shows an embodiment of a barrier insulating paper cup of the present invention, (a) is a partial cross-sectional explanatory view, and (b) is an enlarged explanatory view of A part of (a).

【図2】本発明のバリア性断熱紙カップの胴部の接合部
分(図1(a)のB部)を拡大した説明図である。
FIG. 2 is an enlarged explanatory view of a joint portion (B portion in FIG. 1A) of a body portion of the barrier insulating paper cup of the present invention.

【符号の説明】[Explanation of symbols]

1‥‥断熱層 2‥‥基材層 3‥‥バリア層 4‥‥PETフィルム 5‥‥シーラント層 6‥‥複合シート 10‥‥バリア性断熱紙カップ 11‥‥胴部 12‥‥底部 13‥‥口縁部 15‥‥接合部分 16‥‥紙端面保護 1 ... Insulation layer 2 ... Base material layer 3 ... Barrier layer 4 PET film 5 ... Sealant layer 6 ... Composite sheet 10 ... Insulating paper cup with barrier property 11 ... torso 12 ... bottom 13 rim 15 ... Joined part 16: Paper edge protection

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) B65D 65/40 B65D 65/40 D 81/24 81/24 D Fターム(参考) 3E067 AA05 AB25 BA07A BB01A BB12A BB14A BB25A BC03A CA04 CA05 EA32 EB21 EB27 FC01 GA11 GD02 3E086 AA22 AC07 AC31 AD06 BA04 BA13 BA14 BA15 BA16 BB01 BB02 BB37 BB51 BB62 BB63 CA01 4F100 AK06A AK42D AR00A AR00C AR00E AT00B BA05 BA07 BA10A BA10E DA01 DG10B DJ01A GB16 JD01C JJ02A JL10D JL12E ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) B65D 65/40 B65D 65/40 D 81/24 81/24 DF term (reference) 3E067 AA05 AB25 BA07A BB01A BB12A BB14A BB25A BC03A CA04 CA05 EA32 EB21 EB27 FC01 GA11 GD02 3E086 AA22 AC07 AC31 AD06 BA04 BA13 BA14 BA15 BA16 BB01 BB02 BB37 BB51 BB62 BB63 CA01 4F100 BB01 J10A10CAR00C AR00CAR00E AR10C AR00E AR10CAR00E AR00E AR10E AR10CAR00E AT00BAR10E

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】胴部と底部とからなり開口部周縁が外側に
カールした口縁部を有する紙カップの少なくとも胴部を
構成する胴部材が、表面側より断熱層/基材層/バリア
層/ポリエチレンテレフタレートフィルム/シーラント
層が順次積層された複合シートから構成され、前記断熱
層が低密度ポリエチレン樹脂を発泡させた発泡ポリエチ
レン樹脂からなることを特徴とするバリア性断熱紙カッ
プ。
1. A body member forming at least a body portion of a paper cup having a body portion and a bottom portion and having a rim portion in which an opening peripheral edge is curled to the outside, a body member constituting a heat insulating layer / base material layer / barrier layer / A barrier heat insulating paper cup, comprising a composite sheet in which a polyethylene terephthalate film / sealant layer is sequentially laminated, and the heat insulating layer is made of a foamed polyethylene resin obtained by foaming a low density polyethylene resin.
【請求項2】前記複合シートを構成するポリエチレンテ
レフタレートフィルムが着色されていることを特徴とす
る請求項1記載のバリア性断熱紙カップ。
2. The barrier insulating paper cup according to claim 1, wherein the polyethylene terephthalate film forming the composite sheet is colored.
【請求項3】前記紙カップの胴部の接合部分の内側は、
先端から所定長さだけ複合シートの厚みの半分を削除
し、削り取った残りの半分を削除面が内側になるように
折り返した紙端面保護が行われていることを特徴とする
請求項1又は2記載のバリア性断熱紙カップ。
3. The inside of the joint portion of the body of the paper cup is
3. A paper end face protection in which half of the thickness of the composite sheet is removed from the front end by a predetermined length, and the remaining half that has been scraped off is folded back so that the removal surface is on the inside. Barrier insulating paper cup as described.
JP2002000457A 2002-01-07 2002-01-07 Heat insulating paper cup having barrier property Pending JP2003200980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002000457A JP2003200980A (en) 2002-01-07 2002-01-07 Heat insulating paper cup having barrier property

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002000457A JP2003200980A (en) 2002-01-07 2002-01-07 Heat insulating paper cup having barrier property

Publications (1)

Publication Number Publication Date
JP2003200980A true JP2003200980A (en) 2003-07-15

Family

ID=27640838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002000457A Pending JP2003200980A (en) 2002-01-07 2002-01-07 Heat insulating paper cup having barrier property

Country Status (1)

Country Link
JP (1) JP2003200980A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008087783A (en) * 2006-09-29 2008-04-17 Dainippon Printing Co Ltd Packaging material and its manufacturing method
JP2011001087A (en) * 2009-06-18 2011-01-06 Daishowa Paper Products Co Ltd Insulative foamed paper container
JP2011000835A (en) * 2009-06-22 2011-01-06 Du Pont Mitsui Polychem Co Ltd Heat insulating sheet, heat insulating container
JP2011126560A (en) * 2009-12-16 2011-06-30 Toppan Printing Co Ltd Heat insulating paper container
JP2017159564A (en) * 2016-03-10 2017-09-14 王子ホールディングス株式会社 Paper base material for foamed heat-insulation paper container, sheet for foamed heat-insulation paper container, and foamed heat-insulation paper container
JP2017222937A (en) * 2016-06-14 2017-12-21 王子ホールディングス株式会社 Foam insulation paper container, paper base, foam insulation paper container sheet, and foam insulation paper container
JP2019123251A (en) * 2019-04-16 2019-07-25 王子ホールディングス株式会社 Paper substrate for foam heat insulation paper container, sheet for foam heat insulation paper container and foam heat insulation paper container

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008087783A (en) * 2006-09-29 2008-04-17 Dainippon Printing Co Ltd Packaging material and its manufacturing method
JP2011001087A (en) * 2009-06-18 2011-01-06 Daishowa Paper Products Co Ltd Insulative foamed paper container
JP2011000835A (en) * 2009-06-22 2011-01-06 Du Pont Mitsui Polychem Co Ltd Heat insulating sheet, heat insulating container
JP2011126560A (en) * 2009-12-16 2011-06-30 Toppan Printing Co Ltd Heat insulating paper container
JP2017159564A (en) * 2016-03-10 2017-09-14 王子ホールディングス株式会社 Paper base material for foamed heat-insulation paper container, sheet for foamed heat-insulation paper container, and foamed heat-insulation paper container
JP2017222937A (en) * 2016-06-14 2017-12-21 王子ホールディングス株式会社 Foam insulation paper container, paper base, foam insulation paper container sheet, and foam insulation paper container
JP2019123251A (en) * 2019-04-16 2019-07-25 王子ホールディングス株式会社 Paper substrate for foam heat insulation paper container, sheet for foam heat insulation paper container and foam heat insulation paper container

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