JP3885423B2 - Paper heat insulation cup and its manufacturing method - Google Patents
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Description
【０００１】
【発明の属する技術分野】
本発明は、即席麺などを収容する紙製の断熱カップとその製造方法に関し、特には、熱湯を注いでそのまま飲食することの可能ないわゆるインスタント食品やインスタント飲料用の紙製の断熱カップとその製造方法に関する。
【０００２】
【従来の技術】
従来、即席麺などの収容物に熱湯を注いで食する断熱性カップとしては、例えば、発泡ポリスチレン樹脂などを成形したプラスチックカップ、耐水加工した紙カップ本体の周壁の外側に波状紙を貼着し、さらに、波状紙の上から薄紙を貼着して空気断熱層を形成させた紙カップなどが知られている。
【０００３】
ところが、材質に発泡樹脂を使用したカップは断熱性には優れているものの、燃焼カロリーが高く、焼却、廃棄上の問題があり、さらには消費者の環境意識の高まりに伴う消費行動の変化により発泡樹脂に代わる易廃棄性、易燃焼性の容器が求められている。
【０００４】
また、紙カップに波状紙や薄紙を巻き付け貼着し空気断熱層を形成させた紙カップは、断熱性には問題ないものの、見栄えが悪かったり、作業工程が多くなることにより作業効率が落ちたり、巻き付け貼着しているため紙の剛性による反発によりすぐに接着が剥がれてしまったり、それ故に接着後、一定時間仮止めが必要となるなどの問題があった。
【０００５】
【発明が解決しようとする課題】
本発明は、断熱カップに関する以上のような問題点に着目してなされたもので、紙を主要素材とし、易廃棄性、易焼却性を有し、臭気発生の恐れのない紙製断熱カップとその製造方法を提供することを目的とする。
【０００６】
【課題を解決するための手段】
本発明の第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し、胴部と底部の接合部に環状脚部を形成させた紙カップ本体と、紙カップ本体の胴部外側に嵌め込まれる紙製筒体とから構成される紙製断熱カップであって、紙製筒体の下部は、加圧およびまたは加熱加圧により内方に曲がる彎曲部が形成されると共に、彎曲部の下端には等間隔で凹凸段差を設けた、下方に延び環状脚部の外面に固定される筒状脚部が形成され、該筒体を紙カップ本体の胴部に嵌め込み、筒体の上端は胴部の口縁部の下縁に接触して固定され、彎曲部を形成させた筒体の下端の筒状脚部は紙カップ本体の胴部の下縁の環状脚部の外面に接着して固定され、紙カップ本体の胴部と紙製筒体の間に断熱空間層を設けたことを特徴とする紙製断熱カップである。
【０００７】
また、第２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し、胴部と底部の接合部に環状脚部を有する紙カップ本体を形成する工程、紙カップ本体の胴部の口縁部から環状脚部までを覆う、略扇形のブランクの端縁同士を重ねて接着させ、スリーブ状にして紙製筒体を作製する工程、スリーブ状にした紙製筒体の下部を、周縁を複数に分割して等間隔で凹凸段差を形成させた、互いにかみ合わせ関係にある雄型と雌型により絞り成形して、彎曲面と該彎曲面の下端は下方に延び環状脚部の外面に接着して固定される筒状脚部とを有する筒体とする絞り成形工程、絞り成形を施した紙製筒体を紙カップ本体の胴部に被せると共に、紙カップ本体の環状脚部の外側と紙製筒体の下部とを接着させ、紙カップ本体と彎曲部を有する紙製筒体とを一体化させ、紙カップ本体の胴部と紙製筒体の間に断熱空間層を設けて紙製断熱カップとする一体化工程、以上の各工程を、上記順序で行うことを特徴とする紙製断熱カップの製造方法である。
【０００８】
また、第３の発明は、第１の発明において、前記彎曲部の下端には全周にわたって放射状の縦方向の罫線を設けた、下方に延び環状脚部の外面に固定される筒状脚部が形成されていることを特徴とする紙製断熱カップである。
【０００９】
また、第４の発明は、第２の発明において、前記紙製筒体を作製する工程が、紙カップ本体の胴部の口縁部から環状脚部までを覆う、下部に多数の放射状の罫線を設けた略扇形のブランクの端縁同士を重ねて接着させ、スリーブ状にして紙製筒体を作製する工程であることを特徴とする紙製断熱カップの製造方法である。
【００１０】
上記のように本発明によれば、紙製筒体の下部に内方に曲がる彎曲部を設けているので、紙カップ本体の胴部と紙製筒体の間には断熱空間層が形成される。
また、紙製筒体の下部を、周縁を１０〜６４分割して等間隔で高さ２ｍｍ以下の凹凸段差を形成させた、互いにかみ合わせ関係にある雄型と雌型で絞り成形するので、絞ることにより発生する皺が前記凹凸段差に吸収され、紙製筒体の下部は無理なく見栄えの良い彎曲部と脚部が得られる。
【００１１】
さらに、紙製筒体の下部に、全周にわたって放射状の縦方向の罫線を設けることによって、紙製筒体に雄型と雌型で絞り成形をして彎曲部を設ける際、絞ることによって発生する皺は、規則的に設けた罫線により吸収されるので、無理なく見栄えの良い彎曲部と脚部が得られる。
【００１２】
【発明の実施の形態】
以下実施例により本発明を詳細に説明する。
本発明の紙製断熱カップは、例えば図１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を有し、胴部と底部の接合部に環状脚部１４を形成させた紙カップ本体１０と、紙カップ本体の胴部外側に嵌め込まれる紙製筒体２０とから構成される。
【００１３】
紙カップ本体１０は、胴部を形成する胴部材、底部を形成する底部材とも、坪量が１７０〜３１０ｇ／ｍ2 程度の紙カップ原紙の両面、または片面に低密度ポリエチレン樹脂を２０〜４０μｍ程度塗布したポリエチレン加工紙を一般的な紙カップ成形機にセットして作製することができる。
【００１４】
紙製筒体２０は、坪量が２５０〜３８０ｇ／ｍ2 程度のコートボール、白ライナー、カップ原紙等の板紙を用いて、先ず、所定寸法の扇形に打ち抜き、図２に示すようなブランク２０ａを作製する。
あるいは、所定寸法の扇形に打ち抜くとともに、下部の彎曲部を形成する部分に、図３に示すような放射状に多数の縦方向の罫線ａ、ａ、…を形成させたブランク２０ｂを作製しても良い。
なお、カップ原紙を使用すると、パルプが伸び易く、成形性に富むので彎曲部が成形し易い。
【００１５】
ついで、紙製筒体ブランク２０ａあるいは紙製筒体ブランク２０ｂの両端を重ね合わせ、例えば、エチレン・酢酸ビニル樹脂系のエマルジョン型接着剤を介して接着させ筒状に加工する。
【００１６】
筒状に加工された筒体を雄型と雌型を使用して加圧およびまたは加熱加圧成形して、筒体の下部に内方に曲げた彎曲部２１と彎曲部の下端が下方に延び環状脚部の外面に接着して固定させる筒状脚部２３を有する紙製筒体２０とする。
【００１７】
この際、紙製筒体ブランク２０ａ（ブランクの下部に放射状の罫線を設けていないブランク）を使用する場合には、図４に示すような、周縁を１０〜６４分割して等間隔で高さ２ｍｍ以下の凹凸段差３２、３３を有する雄型３０と雌型３１を使用することにより、絞り成形する際に発生する紙皺を吸収することができ、無理なく綺麗に彎曲部と筒状脚部を形成することができる。
【００１８】
また、紙製筒体ブランク２０ｂ（ブランクの下部に放射状の罫線を設けたブランク）を使用する場合には、図５に示すような、周縁が平滑な雄型４０と雌型４１を使用しても、彎曲部を形成する筒体の下部には、あらかじ多数の放射状の罫線が設けられているので、絞り成形加工によってブランクに生じる皺を吸収することができ、無理なく綺麗に彎曲部と筒状脚部を形成することができる。
【００１９】
紙製筒体２０の紙カップ本体１０への嵌め込みはつぎのように行う。すなわち、紙カップ本体を底の方から紙製筒体の中に嵌め込み、紙製筒体の上端は紙カップ本体の口縁部１３の下に接触させて固定し、紙製筒体の下端は紙カップ本体の環状脚部と接触させて固定し、本発明の紙製断熱カップとする。
紙製筒体と紙カップ本体の固定方法は、紙製筒体の上端と下端のどちらか一方または両方を紙カップ本体と接着剤で接着させる方法が確実である。
【００２０】
【実施例】
以下に本発明の実施例をさらに具体的に説明する。
〈実施例１〉
先ず、坪量２７０ｇ／ｍ2 のカップ原紙の片面に厚さ３０μｍの低密度ポリエチレン樹脂を塗布したポリエチレン加工紙を作製し、所定の寸法に裁断し胴部材とした。
また、坪量２１０ｇ／ｍ2 のカップ原紙の片面に厚さ３０μｍの低密度ポリエチレン樹脂を塗布したポリエチレン加工紙を作製し、所定の寸法に裁断し底部材とした。
【００２１】
この胴部材と底部材を一般的な紙カップ成形機にセットして、高さ：１０４ｍｍ、口径：１３９ｍｍ、底径：１０４ｍｍ、環状脚部の高さ（深さ）：１０ｍｍの紙カップ本体を成形した。
【００２２】
別に、坪量２７０ｇ／ｍ2 のコートボールを用いて、所定寸法の扇形の紙製筒体ブランク２０ａを作製した（図２参照）。
【００２３】
この扇形の筒体ブランク２０ａの両端を重ね、エチレン・酢酸ビニール樹脂系のエマルジョン型接着剤を介して接着させ、スリーブ状に成形した。
【００２４】
続いてスリーブ状に成形した筒体ブランクを、図４に示すような周縁を等間隔で高さ２ｍｍの凹凸段差３２、３３を形成させた雄型３０と雌型３１を使用して加熱加圧し、筒体の下部が内方に曲げた彎曲部２１と彎曲部の下端が下方に延び環状脚部の外面に接着して固定される筒状脚部２３に成形され、紙製筒体２０が形成できた。
なお、雄型と雌型のクリアランスは、紙の厚み±３０％程度が適当である。
【００２５】
ついで、紙カップ本体１０を底の方から紙製筒体２０の中に嵌め込み、紙製筒体の上端は紙カップ本体の口縁部１３の下に接触させて固定し、紙製筒体の下端の筒体脚部２３はエチレン・酢酸ビニール樹脂系接着剤を介して紙カップ本体の環状脚部の外側と接着し、紙カップ本体と紙製筒体の間に断熱空間層２２を有する実施例１の紙製断熱カップとした（図１参照）。
【００２６】
〈実施例２〉
以下に記述する紙製筒体ブランクを用いて紙製筒体を作製した以外は実施例１と同じ素材、方法で、実施例２の紙製断熱カップを作製した。
すなわち、実施例１と同じ、坪量２７０ｇ／ｍ2 のコートボールを用いて、所定寸法の扇形の紙製筒体ブランク２０ｂを作製した。なお、その際、彎曲部を形成する筒体ブランクの下縁から上方に向けて、長さ１２ｍｍの罫線ａを５ｍｍ間隔で下周縁全体に放射状に設けた（図３参照）。
【００２７】
扇形の紙製筒体ブランク２０ｂの両端を重ね、実施例１と同様、エチレン・酢酸ビニール樹脂系のエマルジョン型接着剤を介して接着させ、スリーブ状に成形した。
【００２８】
続いてスリーブ状に成形した筒体ブランクを図５に示すような雄型４０と雌型４１を使用して加熱加圧し、筒体の下部が内方に曲げた彎曲部２１と彎曲部の下端が下方に延び環状脚部の外面に接着して固定される筒状脚部２３に成形され、紙製筒体２０が形成できた。
なお、雄型と雌型のクリアランスは、紙の厚み±３０％程度が適当である。
【００２９】
ついで、実施例１と同様に、紙カップ本体１０を底の方から紙製筒体２０の中に嵌め込み、紙製筒体の上端は紙カップ本体の口縁部１３の下に接触させて固定し、紙製筒体の下端の筒体脚部２３はエチレン・酢酸ビニール樹脂系接着剤を介して紙カップ本体の環状脚部の外側と接着し、紙カップ本体と紙製筒体の間に断熱空間層２２を有する実施例２の紙製断熱カップとした（図１参照）。
【００３０】
こうして作製した実施例１および実施例２の紙製断熱カップに即席麺を入れ、熱湯を注いで３分間放置後、カップの胴部を手指等で握持したが、容易に手で持つことができた。
【００３１】
【発明の効果】
上記のように本発明の紙製断熱カップは、紙カップと紙製筒体の２部品で良く、紙製筒体も貼りと加圧加工のみなので、作業効率も良好で、安定して安価な製造が可能である。
使用する紙の剛度が大きくなった際も、罫線の本数を増やすことや、あるいは周縁に凹凸段差を形成した雄型と雌型を使用することにより見栄えの良い彎曲部を得ることができる。
底側が曲面に成形されているため、剛性に富むと共に美粧性に優れている。
【図面の簡単な説明】
【図１】 本発明の紙製断熱カップの一例を示す部分断面説明図である。
【図２】 本発明の紙製断熱カップに使用する紙製筒体ブランクの一例を示す平面説明図である。
【図３】 本発明の紙製断熱カップに使用する紙製筒体ブランクの別の一例を示す平面説明図であ
る。
【図４】 本発明の紙製断熱カップに使用する紙製筒体の絞り成形に用いる雄型と雌型の形状の一例を示す模式説明図である。
【図５】 本発明の紙製断熱カップに使用する紙製筒体の絞り成形に用いる雄型と雌型の形状の別の一例を示す模式説明図である。
【符号の説明】
１０‥‥紙カップ本体
１１‥‥胴部
１２‥‥底部
１３‥‥口縁部
１４‥‥環状脚部
２０‥‥紙製筒体
２０ａ、２０ｂ‥紙製筒体ブランク
２１‥‥彎曲部
２２‥‥断熱空間層
２３‥‥筒状脚部
３０、４０‥‥雄型
３１、４１‥‥雌型
３２、３３‥‥凹凸段差
ａ‥‥罫線[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a paper insulated cup for storing instant noodles and the like and a method for producing the same, and in particular, a paper insulated cup for so-called instant foods and instant beverages that can be poured and poured as it is with hot water. It relates to a manufacturing method.
[0002]
[Prior art]
Conventionally, as a heat-insulating cup that pours hot water into a container such as instant noodles, for example, a plastic cup formed of foamed polystyrene resin or the like, a corrugated paper is attached to the outside of the peripheral wall of a water-resistant processed paper cup body, Furthermore, a paper cup or the like in which an air heat insulating layer is formed by sticking thin paper on a wavy paper is known.
[0003]
However, although cups made of foamed resin have excellent heat insulation properties, they have high calorie burns, have problems with incineration and disposal, and are also affected by changes in consumer behavior due to increased consumer environmental awareness. There is a need for easily disposable and easily combustible containers that replace foamed resins.
[0004]
In addition, paper cups made by wrapping and pasting corrugated paper or thin paper around paper cups to form an air insulation layer have no problem with heat insulation, but they do not look good or work efficiency decreases due to an increased number of work processes. Because of the sticking, there was a problem that the adhesion was peeled off immediately due to the repulsion due to the rigidity of the paper, and therefore temporary fixing was required for a certain time after the adhesion.
[0005]
[Problems to be solved by the invention]
The present invention was made by paying attention to the above-mentioned problems related to the heat insulating cup, and is made of paper as a main material, and has a paper heat insulating cup that has easy disposal and incineration and does not cause odor generation. It aims at providing the manufacturing method.
[0006]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a paper cup main body comprising a body portion and a bottom portion, having a mouth edge portion whose outer periphery is curled outward, and having an annular leg portion formed at a joint portion between the body portion and the bottom portion. , A paper heat insulation cup configured with a paper tube body fitted on the outside of the body portion of the paper cup body, the lower portion of the paper tube body has a curved portion that bends inward by pressurization and / or heat pressurization A cylindrical leg portion is formed at the lower end of the bent portion with uneven steps at equal intervals and extending downward and fixed to the outer surface of the annular leg portion. The upper end of the tube body is fixed in contact with the lower edge of the mouth edge of the body portion, and the cylindrical leg portion at the lower end of the tube body forming the curved portion is an annular leg on the lower edge of the body portion of the paper cup body. The heat insulating space layer is provided between the body portion of the paper cup body and the paper tube body. It is a manufacturing insulation cup.
[0007]
The second invention is a step of forming a paper cup body having a body part and a bottom part, having a mouth edge whose outer periphery is curled outward, and having an annular leg part at the joint part of the body part and the bottom part. , A process of making a paper tube body in a sleeve form by covering the edges of the body part of the paper cup body from the mouth part to the annular leg part by overlapping and bonding the edges of the substantially fan-shaped blank; The lower part of the cylindrical body is drawn by a male mold and a female mold, which are in mesh with each other, by dividing the periphery into a plurality of parts and forming uneven steps at equal intervals. A drawing process for forming a cylindrical body having a cylindrical leg portion that extends and adheres to the outer surface of the annular leg portion, and covers the body of the paper cup body with the drawn paper cylinder body, Adhere the outside of the annular leg of the paper and the bottom of the paper cylinder to the paper cup body. And the above-mentioned steps for integrating the above-described steps into a paper heat-insulating cup by integrating a paper tube body having a portion and providing a heat-insulating space layer between the body portion of the paper cup body and the paper tube body This is a method for producing a heat insulating paper cup.
[0008]
In addition, the third aspect of the present invention is the cylindrical leg portion according to the first aspect, wherein the lower end of the bent portion is provided with a radial vertical ruled line over the entire circumference, and extends downward and is fixed to the outer surface of the annular leg portion. a paper insulation cup, characterized in that There are formed.
[0009]
Further, in a fourth invention according to the second invention, the step of producing the paper tube body includes a plurality of radial ruled lines in a lower portion that covers from the mouth edge portion of the body portion of the paper cup body to the annular leg portion. It is a manufacturing method of a paper heat insulating cup, characterized in that it is a step of making a paper cylinder by making the edges of the provided substantially fan-shaped blanks overlap and adhere to each other.
[0010]
As described above, according to the present invention, since the bent portion that bends inward is provided at the lower portion of the paper tube body, a heat insulating space layer is formed between the body portion of the paper cup body and the paper tube body. .
In addition, the lower part of the paper cylinder is drawn by a male mold and a female mold having a meshing relationship with each other, with the peripheral edge divided into 10 to 64 and formed with uneven steps with a height of 2 mm or less at equal intervals, so The wrinkles generated by this are absorbed by the uneven steps, and a bent portion and a leg portion having a good appearance can be obtained without difficulty at the lower portion of the paper cylinder.
[0011]
Furthermore, by providing radial vertical ruled lines around the entire circumference at the bottom of the paper cylinder, it is generated when the paper cylinder is drawn with a male mold and a female mold to provide a bent portion. Since the scissors are absorbed by the regular ruled lines, it is possible to obtain a curved part and leg parts that are reasonably attractive.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail by way of examples.
As shown in FIG. 1, for example, the paper heat insulating cup of the present invention includes a
[0013]
The paper cup
[0014]
The
Alternatively, a blank 20b in which a large number of vertical ruled lines a, a,... Are formed radially as shown in FIG. good.
In addition, when a cup base paper is used, since a pulp is easy to extend and it is rich in a moldability, a bending part is easy to shape | mold.
[0015]
Next, both ends of the paper cylinder blank 20a or the paper cylinder blank 20b are overlapped and bonded to each other via, for example, an ethylene / vinyl acetate resin emulsion-type adhesive and processed into a cylinder.
[0016]
The cylinder processed into a cylindrical shape is pressed and / or heat-pressed using a male mold and a female mold, and the
[0017]
At this time, when using a paper cylinder blank 20a (a blank having no radial ruled line at the lower part of the blank), the peripheral edge is divided into 10 to 64 heights as shown in FIG. By using the
[0018]
Moreover, when using the paper cylinder blank 20b (blank which provided the radial ruled line in the lower part of the blank), as shown in FIG. 5, the male mold 40 and the female mold 41 having smooth edges are used. However, since a large number of radial ruled lines are provided at the bottom of the cylindrical body that forms the curved portion, it is possible to absorb the wrinkles that occur in the blank due to the drawing process, so that the curved portion and A cylindrical leg can be formed.
[0019]
The
The method of fixing the paper tube body and the paper cup body is surely the method of adhering either or both of the upper end and the lower end of the paper tube body with the adhesive.
[0020]
【Example】
Examples of the present invention will be described more specifically below.
<Example 1>
First, a polyethylene processed paper in which a low-density polyethylene resin having a thickness of 30 μm was applied to one side of a cup base paper having a basis weight of 270 g / m 2 was produced and cut into a predetermined size to obtain a body member.
Also, a polyethylene processed paper in which a low-density polyethylene resin having a thickness of 30 μm was applied to one side of a cup base paper having a basis weight of 210 g / m 2 was produced and cut into a predetermined dimension to obtain a bottom member.
[0021]
The body member and the bottom member were set in a general paper cup molding machine, and a paper cup body having a height of 104 mm, a diameter of 139 mm, a bottom diameter of 104 mm, and a ring leg height (depth) of 10 mm was formed. .
[0022]
Separately, a fan-shaped paper cylinder blank 20a having a predetermined size was produced using a coated ball having a basis weight of 270 g / m 2 (see FIG. 2).
[0023]
Both ends of this sector-shaped cylindrical blank 20a were overlapped and bonded via an ethylene / vinyl acetate resin emulsion adhesive, and formed into a sleeve shape.
[0024]
Subsequently, the cylindrical blank formed into a sleeve shape is heated and pressurized using a
The clearance between the male mold and the female mold is appropriately about a paper thickness of ± 30%.
[0025]
Next, the
[0026]
<Example 2>
A paper heat insulation cup of Example 2 was produced by the same material and method as in Example 1 except that a paper cylinder was produced using the paper cylinder blank described below.
That is, using the same coated ball having a basis weight of 270 g / m 2 as in Example 1, a fan-shaped paper cylinder blank 20b having a predetermined size was produced. At that time, ruled lines a having a length of 12 mm were radially provided on the entire lower peripheral edge at intervals of 5 mm from the lower edge of the cylindrical blank forming the bent portion upward (see FIG. 3).
[0027]
Both ends of the fan-shaped paper cylinder blank 20b were overlapped and bonded via an ethylene / vinyl acetate resin emulsion adhesive in the same manner as in Example 1 to form a sleeve.
[0028]
Subsequently, the cylindrical blank formed into a sleeve shape is heated and pressurized using a male mold 40 and a female mold 41 as shown in FIG. 5, and the
The clearance between the male mold and the female mold is appropriately about a paper thickness of ± 30%.
[0029]
Next, as in Example 1, the
[0030]
Instant noodles were placed in the paper heat insulation cups of Example 1 and Example 2 prepared in this way, poured hot water and left for 3 minutes, and then the body of the cup was gripped with fingers, etc. did it.
[0031]
【The invention's effect】
As described above, the paper heat insulation cup of the present invention may be composed of two parts, that is, a paper cup and a paper cylinder, and since the paper cylinder is only affixed and pressed, the work efficiency is also good and the manufacturing is stable and inexpensive. Is possible.
Even when the rigidity of the paper to be used is increased, a curved portion having a good appearance can be obtained by increasing the number of ruled lines or by using a male mold and a female mold having irregularities on the periphery.
Since the bottom side is formed into a curved surface, it is rich in rigidity and excellent in cosmetics.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional explanatory view showing an example of a paper heat insulating cup of the present invention.
FIG. 2 is an explanatory plan view showing an example of a paper cylinder blank used in the paper heat insulation cup of the present invention.
FIG. 3 is an explanatory plan view showing another example of a paper cylinder blank used in the paper heat insulation cup of the present invention.
FIG. 4 is a schematic explanatory view showing an example of shapes of a male mold and a female mold used for drawing forming a paper cylinder used in the paper heat insulating cup of the present invention.
FIG. 5 is a schematic explanatory view showing another example of the shape of a male mold and a female mold used for drawing forming a paper cylinder used in the paper heat insulating cup of the present invention.
[Explanation of symbols]
10 ...
Claims (4)
紙製筒体の下部は、加圧およびまたは加熱加圧により内方に曲がる彎曲部が形成されると共に、彎曲部の下端には等間隔で凹凸段差を設けた、下方に延び環状脚部の外面に固定される筒状脚部が形成され、該筒体を紙カップ本体の胴部に嵌め込み、筒体の上端は胴部の口縁部の下縁に接触して固定され、彎曲部を形成させた筒体の下端の筒状脚部は紙カップ本体の胴部の下縁の環状脚部の外面に接着して固定され、紙カップ本体の胴部と紙製筒体の間に断熱空間層を設けたことを特徴とする紙製断熱カップ。A paper cup body consisting of a body part and a bottom part, having a mouth edge whose outer periphery is curled outwardly, and having a ring leg formed at the joint part of the body part and the bottom part, and fitted to the outside of the body part of the paper cup body A paper heat insulation cup composed of a paper cylinder
The lower part of the paper tube body is formed with a curved part that bends inward by pressurization and / or heating and pressurization. A cylindrical leg fixed to the outer surface is formed, the cylinder is fitted into the body of the paper cup body, and the upper end of the cylinder is fixed in contact with the lower edge of the mouth edge of the body to form a curved part The cylindrical leg at the lower end of the cylindrical body is bonded and fixed to the outer surface of the annular leg at the lower edge of the body of the paper cup body, and a heat insulating space layer is formed between the body of the paper cup body and the paper cylinder. A paper heat insulating cup characterized by being provided.
紙カップ本体の胴部の口縁部から環状脚部までを覆う、略扇形のブランクの端縁同士を重ねて接着させ、スリーブ状にして紙製筒体を作製する工程
スリーブ状にした紙製筒体の下部を、周縁を複数に分割して等間隔で凹凸段差を形成させた、互いにかみ合わせ関係にある雄型と雌型により絞り成形して、彎曲面と該彎曲面の下端は下方に延び環状脚部の外面に接着して固定される筒状脚部とを有する筒体とする絞り成形工程
絞り成形を施した紙製筒体を紙カップ本体の胴部に被せると共に、紙カップ本体の環状脚部の外側と紙製筒体の下部とを接着させ、紙カップ本体と彎曲部を有する紙製筒体とを一体化させ、紙カップ本体の胴部と紙製筒体の間に断熱空間層を設けて紙製断熱カップとする一体化工程
以上の各工程を、上記順序で行うことを特徴とする紙製断熱カップの製造方法。A step of forming a paper cup body having a body portion and a bottom portion, the periphery of the opening portion being curled outward, and having an annular leg portion at a joint portion between the body portion and the bottom portion. The process of producing a paper cylinder by making the edges of the substantially fan-shaped blanks covering and covering the annular leg portions overlap and adhere to each other to form a sleeve. The ridged surface and the lower end of the ridged surface are extended downward and bonded to the outer surface of the annular leg part. Drawing process for forming a cylindrical body having a cylindrical leg portion fixed to the body and covering the body of the paper cup body with the paper cylinder body subjected to the drawing, and the outside of the annular leg portion of the paper cup body and the paper cylinder body The paper cup body and the paper cylinder having the curved portion. An integrated process for forming a paper heat insulating cup by providing a heat insulating space layer between the body portion of the paper cup body and the paper cylinder, and performing the above steps in the order described above. Cup manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25143099A JP3885423B2 (en) | 1999-09-06 | 1999-09-06 | Paper heat insulation cup and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25143099A JP3885423B2 (en) | 1999-09-06 | 1999-09-06 | Paper heat insulation cup and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001072038A JP2001072038A (en) | 2001-03-21 |
| JP3885423B2 true JP3885423B2 (en) | 2007-02-21 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25143099A Expired - Fee Related JP3885423B2 (en) | 1999-09-06 | 1999-09-06 | Paper heat insulation cup and its manufacturing method |
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| Country | Link |
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| JP (1) | JP3885423B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5326774B2 (en) * | 2009-04-24 | 2013-10-30 | 有限会社ホクオーパック | Paper container |
| JP5515441B2 (en) * | 2009-06-15 | 2014-06-11 | 有限会社ホクオーパック | Paper container |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595432B2 (en) * | 1976-11-09 | 1984-02-04 | 凸版印刷株式会社 | Container manufacturing method |
| JPH088980Y2 (en) * | 1990-08-03 | 1996-03-13 | 大日本印刷株式会社 | Insulation paper cup |
| JPH05178341A (en) * | 1991-12-27 | 1993-07-20 | Sanyo Shiki Kk | Heat insulating container for precooked food and manufacture thereof |
| JPH061274U (en) * | 1992-06-19 | 1994-01-11 | 日世メリーランドカップ株式会社 | Packaging container |
| JPH07214705A (en) * | 1994-02-04 | 1995-08-15 | Utsui:Kk | Manufacture of molded product of plate made of paper |
| JPH07223683A (en) * | 1994-02-08 | 1995-08-22 | Nippon Dekishii:Kk | Heat insulating paper-made container and production thereof |
| JP3448435B2 (en) * | 1996-07-01 | 2003-09-22 | 東洋アルミホイルプロダクツ株式会社 | Paper container and method of forming paper container |
| JP2000043955A (en) * | 1998-07-24 | 2000-02-15 | Toppan Printing Co Ltd | Thermal insulating paper-made container |
-
1999
- 1999-09-06 JP JP25143099A patent/JP3885423B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| JP2001072038A (en) | 2001-03-21 |
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