JPH1059437A - Heat insulating paper cup - Google Patents

Heat insulating paper cup

Info

Publication number
JPH1059437A
JPH1059437A JP8234663A JP23466396A JPH1059437A JP H1059437 A JPH1059437 A JP H1059437A JP 8234663 A JP8234663 A JP 8234663A JP 23466396 A JP23466396 A JP 23466396A JP H1059437 A JPH1059437 A JP H1059437A
Authority
JP
Japan
Prior art keywords
paper
paper cup
layer
thermoplastic resin
foamed
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
JP8234663A
Other languages
Japanese (ja)
Inventor
Kazuko Yamase
和子 山勢
Yuichi Hirai
裕一 平井
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP8234663A priority Critical patent/JPH1059437A/en
Publication of JPH1059437A publication Critical patent/JPH1059437A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To impart sufficient heat insulating property and shape retention, provide a printing effect, and manufacture a paper cup at a comparatively low cost by a method wherein a protruding part which is formed at one part of a thermoplastic resin foamed layer on the external surface side of a body part, and a paper rolled part are affixed, and a gap is made between the body part and the paper rolled part. SOLUTION: This paper cup 1 comprises a paper cup main body 2 and a paper rolled part 5, and the paper cup main body 2 comprises a body part 3 and a bottom part 4. A protruding part 6 is formed on the body part 3, and the protruding part 6 and the rear surface of the paper rolled part 5 are bonded. For the body part 3, a paper layer is made a base material, and a printing layer is provided on the surface side, and the printing layer is covered with a thermoplastic resin foamed layer, and on the rear surface side, a thermoplastic resin layer is provided. The thermoplastic resin on the surface is foamed by a steam pressure when the moisture in the paper layer is vaporized, and the protruding part 6 is formed by utilizing a phenomenon wherein the part having the printing layer on the bottom foams more. The paper cup main body 2 has heat insulating property, and in addition, the heat insulating property becomes sufficient by a gap 7 with the paper rolled part 5, and the shape retention is sufficient as well, and has a printing effect, and can be manufactured at a comparatively low cost.

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、ラーメン、スー
プ、味噌汁などの即席食品用の容器として使用される断
熱性を有する紙カップに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-insulating paper cup used as a container for ready-to-eat foods such as ramen, soup and miso soup.

【0002】[0002]

【従来の技術】従来より、ラーメン、スープ、味噌汁な
どの即席食品用の容器として使用される断熱性を有する
容器としては、発泡性を持つ合成樹脂、とくに発泡ポリ
スチレン樹脂を原料とするものが、多く使用されてい
る。また、断熱性を有する紙カップとしては、紙カップ
の全周に波形状などの紙製の胴巻きをした形のもの、あ
るいは内側と外側の二重構造とし、二層間に空間を持た
せた形のもの、そして、紙の両面をポリエチレン樹脂層
で積層された材料を使用した紙カップの表面のポリエチ
レン樹脂層を発泡させたものなどがある。
2. Description of the Related Art Conventionally, as a container having heat insulating properties used as a container for ready-to-eat foods such as ramen, soup, miso soup, etc., a synthetic resin having a foaming property, in particular, a foamed polystyrene resin as a raw material, Many are used. In addition, as a paper cup having heat insulation, a paper cup with a corrugated shape around the entire circumference of the paper cup, or a double-layered inner and outer structure with a space between two layers. There is a paper cup made of a material obtained by laminating a polyethylene resin layer on both sides of a paper, and a foamed polyethylene resin layer on the surface of a paper cup.

【0003】[0003]

【発明が解決しようとする課題】しかし、前述の断熱性
を有する容器において、発泡ポリスチレン樹脂による容
器は、発泡剤を加えた樹脂を成形加工することによって
製造され、断熱性では優れているが、使用後、廃棄物と
して処理しにくく、環境対応の点で問題がある。また、
表面の平滑性が低く、印刷適性に劣るなどの欠点もあ
る。
However, among the above-mentioned containers having heat insulating properties, containers made of expanded polystyrene resin are manufactured by molding a resin to which a foaming agent is added, and are excellent in heat insulating properties. After use, it is difficult to dispose as waste, and there is a problem in terms of environmental measures. Also,
There are also drawbacks such as low surface smoothness and poor printability.

【0004】また、全周に波形状などの紙製の胴巻きを
した形の紙カップは、断熱性、および環境対応の点では
優れているが、製造上、胴巻き部を波形状にし、本体に
巻き付ける工程が必要で、技術的難しさがあり、コスト
高になっている。
[0004] A paper cup having a wavy shape such as a corrugated paper is excellent in terms of heat insulation and environmental friendliness. However, in terms of manufacturing, the corrugated portion is corrugated and wound around the main body. It requires a process, is technically difficult, and is costly.

【0005】これらの断熱性カップに対して、断熱性が
あり、印刷適性があり、使用後は廃棄物として捨てやす
く、そして製造工程が簡単でコストが安いという特徴を
もったものが、表面のポリエチレン樹脂層を発泡させた
紙カップである。この発泡紙カップは、特公昭48−3
2283号公報にある、ポリエチレン樹脂加工紙を加熱
し、紙の含有水分の蒸気圧により、表面のポリエチレン
樹脂層を発泡させ、凹凸模様を製造する方法を応用した
ものである。特開昭57−110439号公報では、胴
部材の片側壁面が熱可塑性合成樹脂フィルムの発泡層が
コーティングまたはラミネートされている胴部材および
底板部材から成る紙製容器として、その紙カップへの応
用が開示されている。さらに、特開平5−50536号
公報、特開平7−232774号公報では、ポリオレフ
ィン系樹脂層と紙を主体とする基材層との間に、着色イ
ンキによる印刷層を有する断熱性紙容器として、印刷部
分で厚い発泡層を持たせる製造方法を開示している。
[0005] These heat-insulating cups are characterized in that they have heat insulating properties, are printable, are easy to be discarded as waste after use, and have a simple and inexpensive manufacturing process. This is a paper cup in which a polyethylene resin layer is foamed. This foamed paper cup is manufactured by
No. 2,283, the method of heating a polyethylene resin-processed paper, foaming the polyethylene resin layer on the surface by the vapor pressure of the water content of the paper, and applying a method of manufacturing an uneven pattern. JP-A-57-110439 discloses an application to a paper cup as a paper container comprising a body member and a bottom plate member in which one side wall surface of a body member is coated or laminated with a foamed layer of a thermoplastic synthetic resin film. Have been. Further, JP-A-5-50536 and JP-A-7-232774 disclose heat-insulating paper containers having a printing layer made of colored ink between a polyolefin-based resin layer and a base layer mainly composed of paper. A manufacturing method for providing a thick foam layer in a printed portion is disclosed.

【0006】しかし、従来の発泡紙カップの断熱性は、
飲料用紙カップにおいては、充分であるが、即席食品用
紙カップにおいては、充分とはいえない。また、即席食
品用紙カップは、一般的に容量も大きく、取り扱い時の
保形性が充分にあることが必要である。発泡紙カップ単
独では、充分な強度を有していない。さらに、印刷され
た絵柄や文字などが、発泡した表面層により若干損なわ
れるという欠点がある。これに対して本発明は、断熱性
が充分あり、取り扱い時の保形性が充分にあり、外観上
の印刷効果もあり、そして比較的安いコストで製造が可
能な断熱性紙カップを提供する。
However, the heat insulation of the conventional foamed paper cup is as follows.
In beverage paper cups this is sufficient, but not in instant food paper cups. In addition, the instant food paper cup generally has a large capacity and needs to have sufficient shape retention during handling. Foamed paper cups alone do not have sufficient strength. Further, there is a disadvantage that printed pictures and characters are slightly impaired by the foamed surface layer. On the other hand, the present invention provides an insulated paper cup which has sufficient heat insulation, has sufficient shape retention during handling, has a printing effect on appearance, and can be manufactured at relatively low cost.

【0007】[0007]

【課題を解決するための手段】本発明は、上記のような
課題を解決すべく検討した結果、胴部と底部とからなる
紙カップ本体と、該紙カップ本体の胴部の外周に貼着さ
れた紙巻き部とから構成された紙カップであって、前記
紙カップ本体は、少なくとも胴部の一部に、外面側から
順次、熱可塑性樹脂が発泡した発泡層、印刷層、紙を主
体とする基材層および熱可塑性樹脂層とを備えてなり、
前記発泡層は、その一部分を他の部分より突出した凸部
に形成し、この発泡層の凸部と前記紙巻き部とを貼着し
て、前記紙カップ本体の胴部と前記紙巻き部との間に間
隙を形成したことを特徴とする断熱性紙カップを要旨と
する。また、前記発泡層の凸部が、前記紙カップ本体の
胴部の前記印刷層の部分に形成されたこと、前記発泡層
の凸部が、前記紙カップ本体の胴部の外周方向に連続状
に形成されたこと、そして前記発泡層の凸部が、前記紙
カップ本体の胴部の上下方向に形成されたことを特徴と
する。さらに、前記発泡層の凸部の数が、複数であるこ
とを特徴とする。
SUMMARY OF THE INVENTION The present invention has been studied to solve the above problems, and as a result, a paper cup body consisting of a body and a bottom and an outer periphery of the body of the paper cup body have been attached. A paper cup comprising a paper winding part, wherein the paper cup main body has a foam layer, in which a thermoplastic resin is foamed, a printing layer, and a base layer mainly made of paper, in order from at least an outer surface of at least a part of the body. And a thermoplastic resin layer,
The foam layer is formed by forming a part of the foam layer into a protrusion projecting from the other part, and sticking the protrusion of the foam layer and the paper winding part to form a gap between the body part of the paper cup body and the paper winding part. A heat-insulating paper cup characterized in that a gap is formed in the paper cup. Also, the convex portion of the foam layer is formed on the portion of the printing layer of the body portion of the paper cup body, and the convex portion of the foam layer is formed continuously in the outer circumferential direction of the body portion of the paper cup body. And the protrusion of the foam layer is formed in the up-down direction of the body of the paper cup body. Further, the number of the convex portions of the foam layer is plural.

【0008】本発明によれば、紙カップ本体にも断熱性
を有し、さらに紙カップ本体と紙巻き部との間に間隙を
設け、空気層を作ることにより、断熱性が充分あり、取
り扱い時の保形性が充分にあり、外観上の印刷効果もあ
り、そして比較的安いコストで製造が可能な断熱性紙カ
ップを得ることができる。
According to the present invention, the paper cup body also has heat insulation properties, and furthermore, a gap is provided between the paper cup body and the paper winding portion to form an air layer, thereby providing sufficient heat insulation properties and preservation during handling. It is possible to obtain an insulated paper cup that is sufficiently shaped, has a printing effect on appearance, and can be manufactured at a relatively low cost.

【0009】[0009]

【発明の実施の形態】以下に、図面を参照しながら、本
発明について、さらに詳しく説明する。本発明による断
熱性紙カップ1は、図1に示すように、紙カップ本体2
と紙巻き部5とから構成されている。また、紙カップ本
体2は、図2に示すように、紙カップ本体胴部3と紙カ
ップ本体底部4とから構成されている。そして、紙カッ
プ本体胴部3には、凸部6が形成されている。この凸部
6の形状については、水平方向に平行に二本以上設ける
形が基本ではあるが、特に限定されない。しかし、凸部
6の形状の設計は、紙カップ本体胴部3と紙巻き部5と
の間に空気層の間隙7を持つことを考慮する必要はあ
る。さらに、紙カップ本体胴部3の外周に紙を巻き紙巻
き部5を形成する。紙カップ本体胴部3に設けられた凸
部6と紙巻き部5の裏面とで接着をし、本発明の断熱性
紙カップ1が完成される。その際に、紙カップ本体胴部
3と紙巻き部5との間にできる空気層の間隙7が、断熱
性紙カップ1に断熱効果を持たせる重要な役割を持って
いる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings. As shown in FIG. 1, a heat-insulating paper cup 1 according to the present invention
And a paper winding unit 5. As shown in FIG. 2, the paper cup body 2 includes a paper cup body 3 and a paper cup body bottom 4. The paper cup body 3 has a projection 6 formed thereon. The shape of the projection 6 is basically provided in a form of two or more parallel to the horizontal direction, but is not particularly limited. However, when designing the shape of the convex portion 6, it is necessary to consider that there is a gap 7 in the air layer between the paper cup body 3 and the paper winding portion 5. Further, paper is wound around the outer periphery of the paper cup body 3 to form a paper winding portion 5. The projection 6 provided on the body 3 of the paper cup body and the back surface of the paper winding part 5 are bonded to each other, and the heat-insulating paper cup 1 of the present invention is completed. At this time, the gap 7 in the air layer formed between the paper cup body 3 and the paper winding part 5 plays an important role in giving the heat insulating paper cup 1 a heat insulating effect.

【0010】さらに、詳しく材料構成について説明す
る。特に、紙カップ本体胴部3に凸部6を設ける方法
が、本発明の主眼となっている。図3の凸部6の拡大断
面図に示すように、紙カップ本体胴部3は、紙層11を
基材として、表面側には印刷層12を設ける。さらに、
この層は熱可塑性樹脂が発泡した発泡層13によって、
被覆されている。裏面側には熱可塑性樹脂層(裏面)1
4を設ける。紙層11と熱可塑性樹脂層(裏面)14と
の間には、バリア性などを上げるためにアルミニウム箔
層などを設けることもできる。
Further, the material constitution will be described in detail. In particular, the method of providing the convex portion 6 on the paper cup body 3 is the main subject of the present invention. As shown in the enlarged sectional view of the convex portion 6 in FIG. 3, the paper cup body 3 has a paper layer 11 as a base material and a print layer 12 on the front side. further,
This layer is formed by a foamed layer 13 in which a thermoplastic resin is foamed.
Coated. On the back side, a thermoplastic resin layer (back side) 1
4 is provided. An aluminum foil layer or the like may be provided between the paper layer 11 and the thermoplastic resin layer (back surface) 14 in order to improve barrier properties and the like.

【0011】基材の紙層11は、本発明の断熱性紙カッ
プ1の主強度材料となっており、坪量が100〜400
g/m2 の範囲が、紙カップの製造上好ましい。また、
この紙の含水率が重要で、3〜10%の範囲が好まし
く、さらに好ましくは、5〜8%の範囲であることが望
ましい。紙の中の水分を蒸発させ、その蒸気圧の力で表
面の熱可塑性樹脂層を発泡させて凸部6を形成する際
に、含水率が3%未満であると発泡不足となって所望の
凸部6の厚さが得られなかったり、含水率が10%を越
えると発泡表面が破裂した状態となることがあるので好
ましくない。
The base paper layer 11 is a main strength material of the heat-insulating paper cup 1 of the present invention, and has a basis weight of 100 to 400.
A range of g / m 2 is preferred for the production of paper cups. Also,
The moisture content of the paper is important, preferably in the range of 3 to 10%, more preferably in the range of 5 to 8%. When the moisture in the paper is evaporated and the thermoplastic resin layer on the surface is foamed by the force of the vapor pressure to form the convex portion 6, if the water content is less than 3%, the foaming becomes insufficient and a desired foaming occurs. If the thickness of the convex portion 6 cannot be obtained, or if the water content exceeds 10%, the foamed surface may be in a ruptured state, which is not preferable.

【0012】印刷層12は、基材の紙層11の表面上に
施され、凸部6を設けようとする目的の位置に印刷す
る。つまり、印刷がされた部分が、その上に設けられる
熱可塑性樹脂が発泡した発泡層13の発泡を促進させ、
紙カップ本体胴部3に凸部6を形成する。印刷の方法と
しては、溶剤乾燥型のインキを使用するグラビア印刷が
好ましい。印刷する色については、特に限定されない。
The printing layer 12 is applied on the surface of the base paper layer 11 and is printed at a target position where the projection 6 is to be provided. That is, the printed portion promotes the foaming of the foamed layer 13 in which the thermoplastic resin provided thereon is foamed,
The projection 6 is formed on the body 3 of the paper cup body. As a printing method, gravure printing using a solvent drying type ink is preferable. The color to be printed is not particularly limited.

【0013】熱可塑性樹脂が発泡した発泡層13および
熱可塑性樹脂層(裏面)14に使用する熱可塑性樹脂
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、中密度ポリエチレン樹脂、高密度ポリエチレン樹
脂、ポリプロピレン樹脂、アイオノマー、エチレン・酢
酸ビニル共重合体、エチレン・アクリル酸共重合体、エ
チレン・アクリル酸エステル共重合体、エチレン・ビニ
ルアルコール共重合体、ポリエステル樹脂、ポリ塩化ビ
ニール樹脂、ポリスチレン樹脂などを用いることができ
る。この熱可塑性樹脂層は、印刷が施された基材の紙層
11の表と裏の両面に積層される。積層する方法として
は、樹脂を熱溶融して塗布する押し出しコーティング
法、あるいはフィルムになったものを貼り合わせるラミ
ネート法などを用いることができる。表面の熱可塑性樹
脂が発泡した発泡層13の発泡前の厚さは、10〜10
0μmの範囲が好ましい。10μm未満、または100
μmを越えると発泡しにくくなる。一方、裏面の熱可塑
性樹脂層(裏面)14の厚さは、特に限定されない。た
だ、裏面を発泡させずに、表面だけを発泡させるため
に、裏面からの水蒸気の蒸発を防ぐ方法として、紙層1
1と熱可塑性樹脂層(裏面)14の間にアルミニウム箔
などの層を設けるか、あるいは裏面の熱可塑性樹脂は表
面の熱可塑性樹脂より軟化点の高い熱可塑性樹脂を使
う。例えば、ポリエチレン樹脂の場合、軟化点の高い高
密度ポリエチレン樹脂を裏面の熱可塑性樹脂として用い
ることができる。
The thermoplastic resin used for the foamed layer 13 and the thermoplastic resin layer (back side) 14 in which the thermoplastic resin is foamed is a low-density polyethylene resin, a linear low-density polyethylene resin, a medium-density polyethylene resin, or a high-density polyethylene resin. , Polypropylene resin, ionomer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-acrylic ester copolymer, ethylene-vinyl alcohol copolymer, polyester resin, polyvinyl chloride resin, polystyrene resin, etc. Can be used. This thermoplastic resin layer is laminated on both the front and back sides of the paper layer 11 of the printed base material. As a method of laminating, an extrusion coating method in which a resin is melted and applied, or a laminating method in which a film is pasted can be used. The thickness before foaming of the foamed layer 13 in which the thermoplastic resin foamed on the surface is 10 to 10
A range of 0 μm is preferred. Less than 10 μm, or 100
If it exceeds μm, foaming becomes difficult. On the other hand, the thickness of the thermoplastic resin layer (back surface) 14 on the back surface is not particularly limited. However, in order to foam only the front surface without foaming the back surface, as a method of preventing evaporation of water vapor from the back surface, a paper layer 1 is used.
A layer such as an aluminum foil is provided between the first resin layer 1 and the thermoplastic resin layer (back surface) 14, or a thermoplastic resin having a softening point higher than that of the front surface thermoplastic resin is used for the rear surface thermoplastic resin. For example, in the case of a polyethylene resin, a high-density polyethylene resin having a high softening point can be used as the thermoplastic resin on the back surface.

【0014】凸部6は、熱可塑性樹脂が発泡した発泡層
13の下に印刷が行なわれている部分がより高く発泡し
て形成される。熱可塑性樹脂が発泡した発泡層13と紙
層11との間に印刷層12があると、熱可塑性樹脂が発
泡した発泡層13を発泡させる場合、印刷層12のイン
キがある部分が他の部分より高く発泡するという現象を
利用している。
The protruding portion 6 is formed by foaming a portion where printing is performed below the foamed layer 13 in which the thermoplastic resin has been foamed. If there is a printing layer 12 between the foamed layer 13 in which the thermoplastic resin is foamed and the paper layer 11, when the foamed layer 13 in which the thermoplastic resin is foamed is foamed, the portion of the printed layer 12 where the ink is present is the other portion. Utilizes the phenomenon of higher foaming.

【0015】紙巻き部5は、紙カップ本体胴部3の外側
周辺に巻かれている。凸部6と接してまかれており、紙
カップ本体胴部3の凸部6以外との間には、間隙7があ
り、空気層を持っている。材料は、坪量が50〜300
g/m2 の紙を主に使用する。表面に美麗な印刷を行な
うことができる。
The paper winding section 5 is wound around the outer periphery of the paper cup body 3. There is a gap 7 between the convex portion 6 and the portion other than the convex portion 6 of the paper cup body 3, and the air cup has an air layer. The material has a basis weight of 50 to 300
g / m 2 paper is mainly used. Beautiful printing can be performed on the surface.

【0016】つぎに、本発明の断熱性紙カップの製造方
法は、印刷が施された基材の紙層11の表と裏の両面に
熱可塑性樹脂層が積層された積層体を、打ち抜きで紙カ
ップ本体胴部3の形状のブランク板に加工し、底部と合
わせて、紙カップ本体に成形する。底部にも、発泡する
熱可塑性樹脂層をもった積層体を使うことができる。こ
の紙カップ本体は、一般的な紙カップ成型機で製造がで
きる。この成型された紙カップ本体を加熱することによ
り、紙の中の水分が蒸発し、その蒸気圧と空気の熱膨張
とが加わって作用し、表面の熱可塑性樹脂の層に発泡構
造を生成させる。その加熱で、印刷がされている部分が
より発泡が促進され、凸部6を形成する。
Next, the method for producing a heat-insulating paper cup according to the present invention comprises the steps of: punching a laminate in which a thermoplastic resin layer is laminated on both the front and back sides of a printed paper layer 11; It is processed into a blank plate having the shape of the main body 3 and is formed into a paper cup main body together with the bottom. A laminate having a foaming thermoplastic resin layer also at the bottom can be used. This paper cup body can be manufactured by a general paper cup molding machine. By heating the molded paper cup body, the moisture in the paper evaporates, and the vapor pressure and the thermal expansion of the air are added to act to generate a foamed structure in the thermoplastic resin layer on the surface. Due to the heating, foaming is further promoted in the printed portion, and the convex portion 6 is formed.

【0017】加熱方法としては、熱風、赤外線、遠赤外
線、マイクロ波、高周波などを使うことができる。静置
して加熱する方法、あるいはコンベアーにより送りなが
ら加熱する方法がある。加熱条件としては、温度が10
0〜200°Cの範囲が好ましく、時間としては、10
秒間〜5分間の範囲が好ましい。
As a heating method, hot air, infrared rays, far infrared rays, microwaves, high frequencies, etc. can be used. There is a method of heating while standing, or a method of heating while feeding by a conveyor. As the heating condition, the temperature is 10
The temperature is preferably in the range of 0 to 200 ° C.
A range from seconds to 5 minutes is preferred.

【0018】紙カップ本体2を加熱し、発泡を行なった
後、紙カップ本体胴部3の外側周辺に紙巻き部5を設け
る。巻き付ける一つの方法には、図4に示すように、テ
ーパーのついた筒状の紙巻き部5を予め別の工程で作成
しておき、この筒状の紙巻き部5に紙カップ本体2を挿
入し、凸部6において一部を接着剤で接着、固定する方
法がある。もう一つの方法には、図5に示すように、紙
カップ本体2に紙巻き部5のブランクを、凸部6におい
て、接着剤で接着しながら巻き込んで、ブランクの両端
を接着し固定する方法がある。
After the paper cup body 2 is heated and foamed, a paper winding section 5 is provided around the outside of the paper cup body 3. As shown in FIG. 4, one method of winding is to form a tapered cylindrical paper winding portion 5 in a separate step in advance, insert the paper cup body 2 into this cylindrical paper winding portion 5, There is a method of bonding and fixing a part of the convex portion 6 with an adhesive. As another method, as shown in FIG. 5, there is a method in which a blank of the paper winding portion 5 is wound around the paper cup body 2 while being bonded to the convex portion 6 with an adhesive, and both ends of the blank are bonded and fixed. .

【0019】[0019]

【発明の効果】本発明によれば、紙カップ本体にも断熱
性を有し、さらに紙カップ本体と紙巻き部との間に間隙
を設け、空気層を作ることにより、断熱性が充分あり、
取り扱い時の保形性が充分にあり、外観上の印刷効果も
あり、そして比較的安いコストで製造が可能な断熱性紙
カップを得ることができる。
According to the present invention, the paper cup main body also has heat insulation properties, and further, a gap is provided between the paper cup main body and the paper winding portion to form an air layer, thereby providing sufficient heat insulation properties.
It is possible to obtain an insulated paper cup that has sufficient shape retention during handling, has a printing effect on appearance, and can be manufactured at relatively low cost.

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

【図1】本発明による断熱性紙カップの一実施例を示す
一部を破断した正面図である。
FIG. 1 is a partially cutaway front view showing an embodiment of a heat insulating paper cup according to the present invention.

【図2】本発明による断熱性紙カップの一実施例を示す
部分断面図である。
FIG. 2 is a partial cross-sectional view showing one embodiment of a heat insulating paper cup according to the present invention.

【図3】本発明による断熱性紙カップの一実施例を示す
凸部周辺の拡大断面図である。
FIG. 3 is an enlarged cross-sectional view of the vicinity of a protrusion showing one embodiment of the heat-insulating paper cup according to the present invention.

【図4】本発明による断熱性紙カップの一実施例におい
て紙カップ本体に紙巻き部を巻き付ける一つの方法を示
す図である。
FIG. 4 is a view showing one method of winding a paper winding part around a paper cup body in one embodiment of the heat insulating paper cup according to the present invention.

【図5】本発明による断熱性紙カップの一実施例におい
て紙カップ本体に紙巻き部を巻き付ける他の方法を示す
図である。
FIG. 5 is a view showing another method of winding the paper winding part around the paper cup body in one embodiment of the heat insulating paper cup according to the present invention.

【符号の説明】[Explanation of symbols]

1 断熱性紙カップ 2 紙カップ本体 3 紙カップ本体胴部 4 紙カップ本体底部 5 紙巻き部 6 凸部 7 間隙 8 トップカール部 11 紙層 12 印刷層 13 熱可塑性樹脂が発泡した発泡層 14 熱可塑性樹脂層(裏面) DESCRIPTION OF SYMBOLS 1 Insulated paper cup 2 Paper cup main body 3 Paper cup main body trunk part 4 Paper cup main body bottom part 5 Paper winding part 6 Convex part 7 Gap 8 Top curl part 11 Paper layer 12 Printing layer 13 Foaming layer in which thermoplastic resin foamed 14 Thermoplastic resin layer (back side) )

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 胴部と底部とからなる紙カップ本体と、
該紙カップ本体の胴部の外周に貼着された紙巻き部とか
ら構成された紙カップであって、前記紙カップ本体は、
少なくとも胴部の一部に、外面側から順次、熱可塑性樹
脂が発泡した発泡層、印刷層、紙を主体とする基材層お
よび熱可塑性樹脂層とを備えてなり、前記発泡層は、こ
の一部分を他の部分より突出した凸部に形成し、その発
泡層の凸部と前記紙巻き部とを貼着して、前記紙カップ
本体の胴部と前記紙巻き部との間に間隙を形成したこと
を特徴とする断熱性紙カップ。
1. A paper cup body comprising a body and a bottom,
And a paper winding portion attached to the outer periphery of the body of the paper cup body, wherein the paper cup body is
At least a part of the body portion, sequentially from the outer surface side, comprises a foamed layer of thermoplastic resin foamed, a printed layer, a base layer mainly made of paper and a thermoplastic resin layer, the foamed layer, A part is formed in a convex part protruding from another part, and the convex part of the foam layer and the paper winding part are adhered to form a gap between the body part of the paper cup body and the paper winding part. A heat insulating paper cup characterized by the following.
【請求項2】 前記発泡層の凸部が、前記紙カップ本体
の胴部の前記印刷層の部分に形成されたことを特徴とす
る請求項1に記載する断熱性紙カップ。
2. The heat-insulating paper cup according to claim 1, wherein the convex portion of the foam layer is formed on a portion of the printing layer on the body of the paper cup body.
【請求項3】 前記発泡層の凸部が、前記紙カップ本体
の胴部の外周方向に連続状に形成されたことを特徴とす
る請求項1又は2に記載する断熱性紙カップ。
3. The heat-insulating paper cup according to claim 1, wherein the convex portion of the foam layer is formed continuously in an outer circumferential direction of a body portion of the paper cup body.
【請求項4】 前記発泡層の凸部が、前記紙カップ本体
の胴部の上下方向に形成されたことを特徴とする請求項
1又は2に記載する断熱性紙カップ。
4. The heat-insulating paper cup according to claim 1, wherein the convex portion of the foam layer is formed in a vertical direction of a body of the paper cup body.
【請求項5】 前記発泡層の凸部の数が、複数であるこ
とを特徴とする請求項1乃至4のいずれか1項に記載す
る断熱性紙カップ。
5. The heat-insulating paper cup according to claim 1, wherein the foam layer has a plurality of convex portions.
JP8234663A 1996-08-19 1996-08-19 Heat insulating paper cup Pending JPH1059437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8234663A JPH1059437A (en) 1996-08-19 1996-08-19 Heat insulating paper cup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8234663A JPH1059437A (en) 1996-08-19 1996-08-19 Heat insulating paper cup

Publications (1)

Publication Number Publication Date
JPH1059437A true JPH1059437A (en) 1998-03-03

Family

ID=16974541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8234663A Pending JPH1059437A (en) 1996-08-19 1996-08-19 Heat insulating paper cup

Country Status (1)

Country Link
JP (1) JPH1059437A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2396288A (en) * 2002-03-05 2004-06-23 Tzer-Huang Guo Insulated paper cup
GB2435255A (en) * 2006-02-17 2007-08-22 T & S Patents Ltd A double wall beverage container
WO2014192723A1 (en) * 2013-05-29 2014-12-04 株式会社イノアックコーポレーション Thermal-insulation cover, and production method therefor
JP2014231885A (en) * 2013-05-29 2014-12-11 株式会社イノアックコーポレーション Heat insulation cover and manufacturing method of the same
JP2015085540A (en) * 2013-10-28 2015-05-07 株式会社イノアックコーポレーション Laminated member and method for manufacturing the same
WO2017006697A1 (en) * 2015-07-03 2017-01-12 株式会社ダイセル Ignition system and gas generator in which same is used
JP2018135131A (en) * 2017-02-22 2018-08-30 株式会社日本デキシー Heat-insulating-paper-made container and manufacturing method of heat-insulating-paper-made container

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07223683A (en) * 1994-02-08 1995-08-22 Nippon Dekishii:Kk Heat insulating paper-made container and production thereof
JPH07232774A (en) * 1993-12-22 1995-09-05 Nippon Dekishii:Kk Heat-insulated paper-made container and manufacture thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07232774A (en) * 1993-12-22 1995-09-05 Nippon Dekishii:Kk Heat-insulated paper-made container and manufacture thereof
JPH07223683A (en) * 1994-02-08 1995-08-22 Nippon Dekishii:Kk Heat insulating paper-made container and production thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2396288A (en) * 2002-03-05 2004-06-23 Tzer-Huang Guo Insulated paper cup
GB2435255A (en) * 2006-02-17 2007-08-22 T & S Patents Ltd A double wall beverage container
US9991481B2 (en) 2013-05-29 2018-06-05 Inoac Corporation Thermal insulating cover
JP2014231885A (en) * 2013-05-29 2014-12-11 株式会社イノアックコーポレーション Heat insulation cover and manufacturing method of the same
CN105229362A (en) * 2013-05-29 2016-01-06 井上株式会社 Thermal shield and manufacture method thereof
WO2014192723A1 (en) * 2013-05-29 2014-12-04 株式会社イノアックコーポレーション Thermal-insulation cover, and production method therefor
JP2015085540A (en) * 2013-10-28 2015-05-07 株式会社イノアックコーポレーション Laminated member and method for manufacturing the same
WO2017006697A1 (en) * 2015-07-03 2017-01-12 株式会社ダイセル Ignition system and gas generator in which same is used
JP2017024429A (en) * 2015-07-03 2017-02-02 株式会社ダイセル Ignition means and gas generator using the same
CN107709102A (en) * 2015-07-03 2018-02-16 株式会社大赛璐 Igniter and use its gas generator
US10336288B2 (en) 2015-07-03 2019-07-02 Daicel Corporation Ignition device and gas generator using same
US10773682B2 (en) 2015-07-03 2020-09-15 Daicel Corporation Ignition device and gas generator using same
JP2018135131A (en) * 2017-02-22 2018-08-30 株式会社日本デキシー Heat-insulating-paper-made container and manufacturing method of heat-insulating-paper-made container

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