JPH09328124A - Paper container - Google Patents
Paper containerInfo
- Publication number
- JPH09328124A JPH09328124A JP8170728A JP17072896A JPH09328124A JP H09328124 A JPH09328124 A JP H09328124A JP 8170728 A JP8170728 A JP 8170728A JP 17072896 A JP17072896 A JP 17072896A JP H09328124 A JPH09328124 A JP H09328124A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- layer
- paper container
- thermoplastic resin
- plate
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/64—Lids
- B65D5/66—Hinged lids
- B65D5/6626—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank
- B65D5/665—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank the lid being held in closed position by self-locking integral flaps or tabs
- B65D5/667—Lids in the form of an inverted tray
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Cartons (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ハンバーガー、フ
ライドチキンなどのファーストフードに用いられる紙容
器に関するものであり、特に、保温性を必要とする食品
を収納するのに適した紙容器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 container used for fast food such as hamburgers and fried chicken, and more particularly to a paper container suitable for storing foods that require heat retention. is there.
【０００２】[0002]
【従来の技術】従来、ファーストフードの店でハンバー
ガー、フライドチキンなどを収納する容器の形体に、身
箱部と蓋カバー部を有し、それらを連結した形のものが
ある。この形体は、開閉する形が貝殻に似ていることか
ら「クラムシェル型」と称されている。ファーストフー
ドの店で用いられるクラムシェル型の容器の材料として
は、板紙あるいは発泡ポリスチレンシートなどがある。2. Description of the Related Art Conventionally, there has been a container for storing hamburgers, fried chicken, etc. in a fast food shop, which has a body box part and a lid cover part and connects them. This form is called the "clamshell type" because it opens and closes like a shell. Materials for clamshell containers used in fast food restaurants include paperboard and expanded polystyrene sheets.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、板紙製
のクラムシェル型の紙容器は、断熱性に乏しく、また容
器としての剛性が充分ではなく、とくに水分を吸収した
時の強度が弱いという問題がある。一方、発泡ポリスチ
レンシート製のクラムシェル型の容器は、使用後の廃棄
処理の問題がある。従って、従来のものより断熱性があ
り、水分を含む内容物をいれても強度が低下しない、そ
して使用後の廃棄が容易である紙容器が望まれている。However, the clamshell type paper container made of paperboard has a problem that it has a poor heat insulating property and the rigidity as a container is not sufficient, and that the strength is particularly weak when absorbing moisture. is there. On the other hand, the clamshell container made of expanded polystyrene sheet has a problem of disposal after use. Therefore, there is a demand for a paper container that is more heat-insulating than conventional ones, does not deteriorate in strength even if it contains a content containing water, and is easy to dispose after use.
【０００４】[0004]
【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、底板を中心にしてその
周りに両側板、前側妻板、裏側妻板およびこれらの妻板
と側板とを連結する貼着片を妻板に設けた身箱部と、蓋
板を中心にしてその周りに両側板、前側妻板、裏側妻板
およびこれらの妻板と側板とを連結する貼着片を妻板に
設けた蓋カバー部とをそれぞれ両方の裏側妻板で連結し
てなる紙容器において、該紙容器が紙を主体とした材料
構成の発泡加工紙のブランクを加工して形成され、前記
発泡加工紙が少なくとも基材層の紙と熱可塑性樹脂を発
泡させた発泡層とを備え、前記発泡層が前記紙容器の表
面側に設けられたことを特徴とする紙容器で、前記基材
層の紙と前記発泡層との間に印刷層が設けられたこと、
前記基材層の紙と前記発泡層との間に透明ニス層が設け
られたこと、そして前記発泡層とは反対側の前記基材層
の紙の面に熱可塑性樹脂層が設けられたことを特徴とす
る紙容器を見出し、完成したものである。また、本発明
の紙容器は、前記熱可塑性樹脂層を構成する熱可塑性樹
脂の軟化点が前記発泡層を構成する熱可塑性樹脂の軟化
点より高いこと、そして前記発泡層の厚さが１０〜１０
０μｍであることを特徴とする。DISCLOSURE OF THE INVENTION As a result of investigations to solve the above problems, the present invention has a bottom plate as a center and a side plate, a front side plate, a back side plate, and these end plates and side plates. The body box part with the sticking pieces to be connected on the gable plate, and the side plates around the lid plate, the front gable plate, the back gable plate, and the sticking pieces to connect these gable plates and the side plates are provided on the gable plate. In a paper container in which a lid cover section is connected to both back side gable plates, the paper container is formed by processing a blank of a foamed paper having a material composition mainly composed of paper, and the foamed paper is at least the base. A paper container comprising a material layer paper and a foam layer obtained by foaming a thermoplastic resin, wherein the foam layer is provided on the surface side of the paper container. A printing layer is provided between the layers,
A transparent varnish layer is provided between the base layer paper and the foam layer, and a thermoplastic resin layer is provided on the side of the base layer paper opposite to the foam layer. It was completed by finding a paper container characterized by. In the paper container of the present invention, the softening point of the thermoplastic resin forming the thermoplastic resin layer is higher than the softening point of the thermoplastic resin forming the foam layer, and the thickness of the foam layer is 10 to 10. 10
0 μm.
【０００５】本発明によれば、従来のものより断熱性が
あり、水分を含む内容物をいれても強度が低下しない、
そして使用後の廃棄が容易である紙容器を得ることがで
きる。According to the present invention, it is more heat insulating than the conventional one, and its strength does not decrease even if the contents containing water are added,
Then, it is possible to obtain a paper container that can be easily discarded after use.
【０００６】[0006]
【発明の実施の形態】以下に、図面を参照しながら、本
発明の紙容器について、詳しく説明する。まず、本発明
の紙容器に用いる発泡加工紙１について説明する。発泡
加工紙１の材料構成は、図１−ａに示すように、基材層
となる紙２の上に印刷層５が設けられ、印刷層５を被覆
するように透明ニス層６が設けられ、さらにその上に、
熱可塑性樹脂が発泡した発泡層３が設けられるととも
に、紙２の他方の面には、熱可塑性樹脂層４が設けられ
たものである。なお、印刷層５と透明ニス層６の設け方
は、図１−ｂに示すように、紙２の上に透明ニス層６を
設け、その上に印刷層５を設けるようにしてもよいもの
であり、さらに、図１−ｃに示すように、紙２の上に設
けられた印刷層５を除く部分に透明ニス層６を設けるよ
うにしてもよいものである。また、紙２と熱可塑性樹脂
層４との間には、バリア性などを上げるためにアルミニ
ウム箔層などのバリア性を有する材料を用いた層を設け
てもよい。BEST MODE FOR CARRYING OUT THE INVENTION The paper container of the present invention will be described in detail below with reference to the drawings. First, the foamed paper 1 used in the paper container of the present invention will be described. As for the material constitution of the foamed paper 1, as shown in FIG. 1-a, the printing layer 5 is provided on the paper 2 serving as the base material layer, and the transparent varnish layer 6 is provided so as to cover the printing layer 5. , And on top of that,
A foamed layer 3 formed by foaming a thermoplastic resin is provided, and a thermoplastic resin layer 4 is provided on the other surface of the paper 2. As for the method of providing the printing layer 5 and the transparent varnish layer 6, as shown in FIG. 1-b, the transparent varnish layer 6 may be provided on the paper 2 and then the printing layer 5 may be provided thereon. Further, as shown in FIG. 1-c, the transparent varnish layer 6 may be provided on the paper 2 except the printing layer 5. Further, a layer made of a material having a barrier property such as an aluminum foil layer may be provided between the paper 2 and the thermoplastic resin layer 4 in order to improve the barrier property.
【０００７】基材層となる紙２は、坪量が１００〜６０
０ｇ／ｍ2 の範囲であることが、本発明の紙容器の製造
上好ましい。また、紙２の含水率は、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発泡層３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
て所望の発泡層３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 paper 2 as the base material layer has a basis weight of 100 to 60.
The range of 0 g / m 2 is preferable for producing the paper container of the present invention. The water content of the paper 2 is preferably in the range of 3 to 10%, more preferably 5 to 8%. When the moisture content 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 foamed layer 3, if the water content is less than 3%, the foaming becomes insufficient and the foaming layer 3 becomes insufficient. If the thickness of the foamed layer 3 cannot be obtained or the water content exceeds 10%, the foamed surface may be in a ruptured state, which is not preferable.
【０００８】印刷層５は、基材層となる紙２の表面、あ
るいは透明ニス層６の上に施される。この印刷層５は、
部分的に着色インキで印刷される場合と、全面的に着色
インキで印刷される場合とがある。印刷の位置、印刷面
積の大小、印刷の方法、使用されるインキなどは、従来
公知の技術を適宜選択して用いることができる。The printing layer 5 is applied on the surface of the paper 2 which is the base material layer or on the transparent varnish layer 6. This print layer 5 is
There are a case where it is partially printed with colored ink and a case where it is entirely printed with colored ink. The printing position, the size of the printing area, the printing method, the ink used, and the like can be appropriately selected from conventionally known techniques and used.
【０００９】透明ニス層６は、基材の紙２の表面、ある
いは印刷層５の上に設けられる。透明ニスを塗布する方
法としては、印刷やコーティングによる方法がある。中
でも、グラビア印刷による方法が好ましい。透明ニスの
組成は、体質顔料を含んだ合成樹脂が主成分となってい
る。合成樹脂としては、硝化綿、ポリウレタン樹脂、ポ
リアミド樹脂、ポリ塩化ビニール樹脂、アクリル樹脂、
これらの２種類以上を混合した樹脂などを用いることが
できる。また、体質顔料としては、酸化チタン、炭酸カ
ルシウム、炭酸マグネシウムや、これらの２種類以上か
らなる混合物などを用いることができる。透明ニスの塗
布量は、塗布後の乾燥状態で２〜３ｇ／ｍ2 が好まし
い。The transparent varnish layer 6 is provided on the surface of the base paper 2 or on the printed layer 5. As a method of applying a transparent varnish, there is a method by printing or coating. Above all, a method by gravure printing is preferable. The composition of the transparent varnish is mainly composed of a synthetic resin containing an extender. As synthetic resin, nitrified cotton, polyurethane resin, polyamide resin, polyvinyl chloride resin, acrylic resin,
A resin obtained by mixing two or more of these may be used. Further, as the extender pigment, titanium oxide, calcium carbonate, magnesium carbonate, a mixture of two or more of these, and the like can be used. The coating amount of the transparent varnish is preferably 2-3 g / m 2 in a dry state after the application.
【００１０】発泡層３、熱可塑性樹脂層４を形成する熱
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・酢酸ビニール共重合体、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。この熱可塑性樹脂は、印刷および透
明ニスが施された基材層となる紙２の表と裏の両面に積
層される。積層する方法には、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がある。発泡層３
となる表面の熱可塑性樹脂の厚さは、１０〜１００μｍ
の範囲が好ましい。１０μｍ未満または１００μｍ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
４の厚さは、特に限定されない。また、図１−ａ、ｂ、
ｃに示すように、裏面の熱可塑性樹脂層４を発泡させず
に、表面の熱可塑性樹脂だけを発泡させて発泡層３を形
成するために、裏面からの水蒸気の蒸発を防ぐ方法とし
て、紙２と熱可塑性樹脂層４の間にアルミニウム箔など
の層を設ける方法や、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用い
る方法がある。後者の場合、例えば、ポリエチレン樹脂
を例にとれば、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 forming the foamed layer 3 and the thermoplastic resin layer 4 is a low-density polyethylene resin, a linear low-density polyethylene resin, a medium-density polyethylene resin, a high-density polyethylene resin, a polypropylene resin, an ionomer, ethylene-acetic acid. A vinyl copolymer, an ethylene / acrylic acid copolymer, an ethylene / acrylic ester copolymer, an ethylene / vinyl alcohol copolymer, a polyester resin, a polyvinyl chloride resin, a polystyrene resin or the like can be used. This thermoplastic resin is laminated on both the front and back sides of the paper 2 which is a base layer on which printing and transparent varnish have been applied. Examples of the laminating method include an extrusion coating method in which a resin is heated and melted and applied, and a laminating method in which a film is adhered. Foam layer 3
The thickness of the thermoplastic resin on the surface is 10-100 μm
Is preferred. If it is less than 10 μm or more than 100 μm, it is difficult to foam. On the other hand, the thickness of the thermoplastic resin layer 4 on the back surface is not particularly limited. 1-a, b,
As shown in FIG. 3c, in order to form the foamed layer 3 by foaming only the thermoplastic resin on the front surface without foaming the thermoplastic resin layer 4 on the rear surface, as a method of preventing evaporation of water vapor from the back surface, There is a method of providing a layer such as an aluminum foil between 2 and the thermoplastic resin layer 4, or a method of using a thermoplastic resin having a higher softening point than the thermoplastic resin of the front surface as the thermoplastic resin of the back surface. In the latter case, for example, if a polyethylene resin is taken as an example, a high-density polyethylene resin having a high softening point can be used as the thermoplastic resin on the back surface.
【００１１】つぎに、発泡加工紙１を使用して紙容器を
作製する方法について説明する。発泡加工紙１を各形態
の紙容器のブランクに打ち抜き、手で組み立てたり機械
で組み立てたりして、それぞれの紙容器を作ることがで
きる。ここで、発泡加工紙１への加熱発泡の加工は、ブ
ランクの状態で発泡させる場合と、紙容器に組み立てた
状態で発泡させる場合とがある。このブランクあるいは
組み立てた紙容器を加熱することにより、紙２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が発泡構造をとり発泡層３が
形成されることになる。Next, a method for producing a paper container using the foamed paper 1 will be described. The foamed paper 1 can be punched into blanks of paper containers of various forms and assembled by hand or machine to make respective paper containers. Here, the processing of heat-foaming the foamed paper 1 may be foaming in a blank state or foaming in a state assembled in a paper container. By heating this blank or the assembled paper container, the water content in the paper 2 evaporates, the vapor pressure and the thermal expansion of the air act together, and the thermoplastic resin on the surface takes on a foam structure to form a foam layer. 3 will be formed.
【００１２】加熱方法としては、熱風、赤外線、遠赤外
線、マイクロ波、高周波などによる方法を使うことがで
きる。また、静置して加熱する方法、あるいはコンベア
ーによって送りながら加熱する方法などを使うこともで
きる。加熱条件としては、温度が１００〜２００°Ｃの
範囲が好ましく、時間としては、１０秒〜５分の範囲が
好ましい。As a heating method, a method using hot air, infrared rays, far infrared rays, microwaves, high frequencies or the like can be used. Further, a method of heating while standing or a method of heating while feeding by a conveyor can also be used. As the heating conditions, the temperature is preferably in the range of 100 to 200 ° C., and the time is preferably in the range of 10 seconds to 5 minutes.
【００１３】図２において、本発明の紙容器のブランク
１１について示している。ブランク１１は、身箱部１２
と蓋カバー部１３とが、それぞれ対象的に形成されてい
る。身箱部１２は、底板１４を中心にして、その上下に
側板１５が連設され、その左右には裏側妻板１６ａと前
側妻板１６ｂとが連設されている。前記裏側妻板１６ａ
と前側妻板１６ｂの両端にはそれぞれ貼着片１７、１８
が突設されている。前側妻板１６ｂの中央部近辺には切
溝２４が設けられている。また、蓋カバー部１３は、蓋
板１９を中心にして、その上下に側板２０が連設され、
その左右には前側妻板２１ａと裏側妻板２１ｂとが連設
されている。前記前側妻板２１ａと裏側妻板２１ｂの両
端には、それぞれ貼着片２２、２３が突設されている。
さらに、前側妻板２１ａの先端には、前記切溝２４に嵌
入しうる係止片２５が形成されている。そして、身箱部
１２の裏側妻板１６ａと蓋カバー部１３の裏側妻板２１
ｂとが連設されている。FIG. 2 shows a blank 11 of the paper container of the present invention. The blank 11 is the body box 12
The lid cover 13 and the lid cover 13 are formed symmetrically. The body box portion 12 has side plates 15 continuously arranged above and below the bottom plate 14 as a center, and a rear side end plate 16a and a front side end plate 16b are connected to the left and right sides of the side plate 15. The back side gable plate 16a
Adhesive pieces 17, 18 are provided on both ends of the front side board 16b, respectively.
Is protruding. A kerf 24 is provided near the center of the front end plate 16b. In addition, the lid cover portion 13 has side plates 20 continuously arranged above and below the lid plate 19 as a center.
A front side gable plate 21a and a back side gable plate 21b are connected to the left and right sides thereof. Adhesive pieces 22 and 23 are provided at both ends of the front side end plate 21a and the back side end plate 21b, respectively.
Further, a locking piece 25 that can be fitted into the cut groove 24 is formed at the tip of the front side end plate 21a. Then, the back side gable plate 16a of the body box part 12 and the back side gable plate 21 of the lid cover part 13
and b are connected.
【００１４】本発明の紙容器３１の組み立てにあたって
は、図３に示すように、まず底板１４を中心にして、そ
の周りに側板１５、裏側妻板１６ａ、前側妻板１６ｂを
それぞれ起立し、貼着片１７、１８をそれぞれ側板１５
の内面に貼着することによって、身箱部１２を形成す
る。つづいて、蓋板１９を中心にして、その周りに側板
２０、前側妻板２１ａ、裏側妻板２１ｂを起立し、貼着
片２２、２３を側板２０の内面に貼着することによって
蓋カバー部１３を形成する。このように構成した身箱部
１２に蓋カバー部１３を被せ、かつ係止片２５を切溝２
４に嵌入係止することによって、全体を組み立て構成す
ることができる。In assembling the paper container 31 of the present invention, as shown in FIG. 3, first, the side plate 15, the back side end plate 16a, and the front side end plate 16b are respectively erected around the bottom plate 14 and the sticking pieces are attached. 17 and 18 are side plates 15
The body box 12 is formed by attaching the body box 12 to the inner surface of the body. Subsequently, with the lid plate 19 at the center, the side plate 20, the front gable plate 21a, and the back gable plate 21b are erected upright, and the attaching pieces 22 and 23 are attached to the inner surface of the side plate 20 to attach the lid cover portion 13. Form. The box cover 12 thus configured is covered with the lid cover 13, and the locking piece 25 is provided with the cut groove 2.
The entire structure can be assembled and configured by fitting and locking in 4.
【００１５】本発明の発泡加工紙１を使用した紙容器の
用途としては、ハンバーガー、フライドチキンなどのフ
ァーストフードの店で食品を包装する紙容器として利用
することができる。The paper container using the foamed paper 1 of the present invention can be used as a paper container for packaging foods in fast food stores such as hamburgers and fried chicken.
【００１６】[0016]
【実施例】つぎに、本発明について実施例をあげて、さ
らに具体的に説明する。まず、発泡加工紙１について説
明する。基材層となる紙２として坪量３４０ｇ／ｍ2 、
含水率８．０％の板紙を用い、その板紙の表面に絵柄を
グラビア印刷で印刷して印刷層５を形成し、さらに、そ
の上に同じくグラビア印刷で、体質顔料を含む硝化綿と
ポリウレタン樹脂を主成分とし、トルエン、酢酸エチ
ル、メチルエチルケトン、イソプロピルアルコールを混
合したものを溶剤とした透明ニスを用いて透明ニス層６
を形成した。透明ニス層６を形成するにあたり、使用し
た版は、線数が１７５線で、深さが３５μであり、塗布
量は、乾燥状態で２．５ｇ／ｍ2 であった。さらに表面
には、４０μの厚さの低密度ポリエチレン樹脂層を、裏
面には、２０μの低密度ポリエチレンと高密度ポリエチ
レンを混合したポリエチレン樹脂層を押し出しコーティ
ング法によって設けた。Next, the present invention will be described more specifically with reference to examples. First, the foamed paper 1 will be described. Paper 2 as a base material layer has a basis weight of 340 g / m 2 ,
Using a paperboard having a water content of 8.0%, a pattern is printed on the surface of the paperboard by gravure printing to form a printing layer 5, and the same is also gravure printing on it, and nitrified cotton containing an extender pigment and polyurethane resin. A transparent varnish layer 6 using a transparent varnish containing as a main component, a mixture of toluene, ethyl acetate, methyl ethyl ketone, and isopropyl alcohol as a solvent.
Was formed. The plate used for forming the transparent varnish layer 6 had a line number of 175 lines, a depth of 35 μm, and a coating amount of 2.5 g / m 2 in a dry state. Furthermore, a low-density polyethylene resin layer having a thickness of 40 μm was provided on the front surface, and a polyethylene resin layer having a mixture of low-density polyethylene and high-density polyethylene 20 μm was provided on the back surface by extrusion coating.
【００１７】このように積層された発泡加工紙１を打ち
抜き加工で、図２に示すように、紙容器のブランク１１
を作製した。この作製した紙容器のブランク１１を、１
２０°Ｃの乾燥機の中で３分間加熱し表面の熱可塑性樹
脂を発泡させて発泡層３を形成した。この発泡層３を有
する紙容器のブランク１１を発泡層３が表面側になるよ
うに、それぞれの罫線で折り畳み、図３に示すように、
身箱部１２と蓋カバー部１３を有した紙容器３１を得
た。The foamed paper 1 laminated in this way is punched to form a blank 11 of a paper container as shown in FIG.
Was produced. The blank 11 of the prepared paper container is 1
The thermoplastic resin on the surface was foamed by heating in a dryer at 20 ° C for 3 minutes to form a foamed layer 3. The blank 11 of the paper container having the foam layer 3 is folded along the respective ruled lines so that the foam layer 3 is on the front side, and as shown in FIG.
A paper container 31 having the body box 12 and the lid cover 13 was obtained.
【００１８】この紙容器３１の身箱部１２に、加熱調理
したハンバーガーを収納し、蓋カバー部１３を被せて、
手で持ったところ、発泡層３の断熱効果により、熱が緩
和され、熱さが感じられなかった。The cooked hamburger is housed in the body box 12 of the paper container 31, and the lid cover 13 is put on the hamburger.
When held by hand, heat was alleviated by the heat insulating effect of the foam layer 3, and the heat was not felt.
【００１９】[0019]
【発明の効果】本発明によれば、従来のものより断熱性
があり、水分を含む内容物を入れても強度が低下しな
い、そして使用後の廃棄が容易である紙容器を得ること
ができる。According to the present invention, it is possible to obtain a paper container which is more heat insulating than the conventional one, the strength of which does not decrease even when the contents containing water are put therein, and which can be easily disposed of after use. .
【図１】本発明による発泡加工紙を使用した紙容器の一
実施例の材料構成を示す図である。FIG. 1 is a diagram showing a material configuration of an embodiment of a paper container using a foamed paper according to the present invention.
【図２】本発明による発泡加工紙を使用した紙容器の一
実施例のブランクを示す展開図である。FIG. 2 is a development view showing a blank of an embodiment of a paper container using the foamed paper according to the present invention.
【図３】本発明による発泡加工紙を使用した紙容器の一
実施例を示す斜視図である。FIG. 3 is a perspective view showing an embodiment of a paper container using the foamed paper according to the present invention.
１ 発泡加工紙 ２ 紙 ３ 発泡層 ４ 熱可塑性樹脂層 ５ 印刷層 ６ 透明ニス層 １１ 紙容器のブランク １２ 身箱部 １３ 蓋カバー部 １４ 底板 １５ 側板 １６ａ裏側妻板 １６ｂ前側妻板 １７ 貼着片 １８ 貼着片 １９ 蓋板 ２０ 側板 ２１ａ前側妻板 ２１ｂ裏側妻板 ２２ 貼着片 ２３ 貼着片 ２４ 切溝 ２５ 係止片 ３１ 紙容器 1 Foamed paper 2 Paper 3 Foam layer 4 Thermoplastic resin layer 5 Printing layer 6 Transparent varnish layer 11 Blank of paper container 12 Body box part 13 Lid cover part 14 Bottom plate 15 Side plate 16a Back gable plate 16b Front gable plate 17 Adhesive piece 18 Adhesion Piece 19 Cover plate 20 Side plate 21a Front side gable plate 21b Back side gable plate 22 Sticking piece 23 Sticking piece 24 Cut groove 25 Locking piece 31 Paper container
Claims (6)
妻板、裏側妻板およびこれらの妻板と側板とを連結する
貼着片を妻板に設けた身箱部と、蓋板を中心にしてその
周りに両側板、前側妻板、裏側妻板およびこれらの妻板
と側板とを連結する貼着片を妻板に設けた蓋カバー部と
をそれぞれ両方の裏側妻板で連結してなる紙容器におい
て、該紙容器が紙を主体とした材料構成の発泡加工紙の
ブランクを加工して形成され、前記発泡加工紙が少なく
とも基材層の紙と熱可塑性樹脂を発泡させた発泡層とを
備え、前記発泡層が前記紙容器の表面側に設けられたこ
とを特徴とする紙容器。1. A body box portion having a bottom plate as a center, a side plate, a front side gable plate, a back side gable plate and sticking pieces for connecting these gable plates and side plates around the bottom plate, and a lid plate as a center. A paper container formed by connecting both side plates, a front gable plate, a back gable plate, and a cover cover provided on the gable plate with sticking pieces for connecting these gable plates and the side plates around each of the back gable plates. The container is formed by processing a blank of a foam-processed paper having a material composition mainly composed of paper, and the foam-processed paper comprises at least a paper of a base material layer and a foam layer in which a thermoplastic resin is foamed, and the foam layer Is provided on the front surface side of the paper container.
層が設けられたことを特徴とする請求項１記載の紙容
器。2. The paper container according to claim 1, wherein a printing layer is provided between the base layer paper and the foam layer.
ニス層が設けられたことを特徴とする請求項２記載の紙
容器。3. The paper container according to claim 2, wherein a transparent varnish layer is provided between the base layer paper and the foam layer.
面に熱可塑性樹脂層が設けられたことを特徴とする請求
項１乃至３のいずれか記載の紙容器。4. The paper container according to claim 1, wherein a thermoplastic resin layer is provided on the paper surface of the base material layer opposite to the foam layer.
脂の軟化点が前記発泡層を構成する熱可塑性樹脂の軟化
点より高いことを特徴とする請求項４記載の紙容器。5. The paper container according to claim 4, wherein the softening point of the thermoplastic resin forming the thermoplastic resin layer is higher than the softening point of the thermoplastic resin forming the foam layer.
ることを特徴とする請求項１乃至５のいずれか記載の紙
容器。6. The paper container according to claim 1, wherein the foam layer has a thickness of 10 to 100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8170728A JPH09328124A (en) | 1996-06-11 | 1996-06-11 | Paper container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8170728A JPH09328124A (en) | 1996-06-11 | 1996-06-11 | Paper container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09328124A true JPH09328124A (en) | 1997-12-22 |
Family
ID=15910298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8170728A Pending JPH09328124A (en) | 1996-06-11 | 1996-06-11 | Paper container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09328124A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007131351A (en) * | 2005-11-11 | 2007-05-31 | Seda Spa | Box-like vessel and blank |
| EP2226259A1 (en) * | 2009-03-05 | 2010-09-08 | SMURFIT KAPPA France | Carton box, in particular for hamburgers and the like |
| JP2010228768A (en) * | 2009-03-26 | 2010-10-14 | Sekisui Plastics Co Ltd | Food packaging sheet material and food packaging container |
| JP4724328B2 (en) * | 2001-08-30 | 2011-07-13 | 積水化成品工業株式会社 | Packaging container |
| JP2012210951A (en) * | 2011-03-30 | 2012-11-01 | Oji Tac Hanbai Kk | Sheet for food packaging board, and food packaging board |
| JP2013032175A (en) * | 2011-08-02 | 2013-02-14 | Sekisui Plastics Co Ltd | Packaging container |
| JP2013180442A (en) * | 2012-02-29 | 2013-09-12 | Sekisui Plastics Co Ltd | Carton making apparatus, and blank sheet for packaging container applied to carton making apparatus |
| JP2015521572A (en) * | 2012-06-25 | 2015-07-30 | エルビーピー マニファクチャリング インコーポレイテッド | Insulation packaging |
| US10144573B2 (en) | 2006-04-03 | 2018-12-04 | Lbp Manufacturing Llc | Thermally activatable insulating packaging |
| US10183458B2 (en) | 2006-04-03 | 2019-01-22 | Lbp Manufacturing Llc | Insulated packaging and method of making same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497026U (en) * | 1991-01-11 | 1992-08-21 | ||
| JPH0550536A (en) * | 1991-08-26 | 1993-03-02 | Honshu Paper Co Ltd | Manufacture of paper container having heat insulation property |
| JPH07232774A (en) * | 1993-12-22 | 1995-09-05 | Nippon Dekishii:Kk | Heat-insulated paper-made container and manufacture thereof |
-
1996
- 1996-06-11 JP JP8170728A patent/JPH09328124A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497026U (en) * | 1991-01-11 | 1992-08-21 | ||
| JPH0550536A (en) * | 1991-08-26 | 1993-03-02 | Honshu Paper Co Ltd | Manufacture of paper container having heat insulation property |
| JPH07232774A (en) * | 1993-12-22 | 1995-09-05 | Nippon Dekishii:Kk | Heat-insulated paper-made container and manufacture thereof |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4724328B2 (en) * | 2001-08-30 | 2011-07-13 | 積水化成品工業株式会社 | Packaging container |
| JP2007131351A (en) * | 2005-11-11 | 2007-05-31 | Seda Spa | Box-like vessel and blank |
| US10144573B2 (en) | 2006-04-03 | 2018-12-04 | Lbp Manufacturing Llc | Thermally activatable insulating packaging |
| US10183458B2 (en) | 2006-04-03 | 2019-01-22 | Lbp Manufacturing Llc | Insulated packaging and method of making same |
| EP2226259A1 (en) * | 2009-03-05 | 2010-09-08 | SMURFIT KAPPA France | Carton box, in particular for hamburgers and the like |
| FR2942779A1 (en) * | 2009-03-05 | 2010-09-10 | Smurfit Kappa France | PACKAGING CARTON IN CARDBOARD OR SEMI-RIGID MATERIAL, IN PARTICULAR FOR SANDWICH OR HAMBURGER-TYPE FOOD PRODUCTS |
| JP2010228768A (en) * | 2009-03-26 | 2010-10-14 | Sekisui Plastics Co Ltd | Food packaging sheet material and food packaging container |
| JP2012210951A (en) * | 2011-03-30 | 2012-11-01 | Oji Tac Hanbai Kk | Sheet for food packaging board, and food packaging board |
| JP2013032175A (en) * | 2011-08-02 | 2013-02-14 | Sekisui Plastics Co Ltd | Packaging container |
| JP2013180442A (en) * | 2012-02-29 | 2013-09-12 | Sekisui Plastics Co Ltd | Carton making apparatus, and blank sheet for packaging container applied to carton making apparatus |
| JP2015521572A (en) * | 2012-06-25 | 2015-07-30 | エルビーピー マニファクチャリング インコーポレイテッド | Insulation packaging |
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