JP2003192043A - Paper cup usable for microwave oven - Google Patents
Paper cup usable for microwave ovenInfo
- Publication number
- JP2003192043A JP2003192043A JP2001391145A JP2001391145A JP2003192043A JP 2003192043 A JP2003192043 A JP 2003192043A JP 2001391145 A JP2001391145 A JP 2001391145A JP 2001391145 A JP2001391145 A JP 2001391145A JP 2003192043 A JP2003192043 A JP 2003192043A
- Authority
- JP
- Japan
- Prior art keywords
- paper cup
- microwave oven
- section
- body member
- station
- 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
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- Package Specialized In Special Use (AREA)
- Cookers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電子レンジによる
加熱調理が可能な紙カップに関する。TECHNICAL FIELD The present invention relates to a paper cup which can be cooked by a microwave oven.
【０００２】[0002]
【従来の技術】従来、図８に示すような紙カップの底部
（５２）は、ＰＭＣ汎用紙カップ成型機によって、以下
のような工程を経て成形されていた。2. Description of the Related Art Conventionally, a bottom portion (52) of a paper cup as shown in FIG. 8 has been molded by a PMC general-purpose paper cup molding machine through the following steps.
【０００３】ステーション０：底部材パンチ及びドロー
工程
まず、図９に示すように、底部材用ロールからほぼ円形
状に打ち抜かれた底紙の外周縁部を折り曲げて作成され
た底部材（６１）を、マンドレル（６２）底部へ真空吸
着する。Station 0: Bottom member punching and drawing step First, as shown in FIG. 9, a bottom member (61) formed by bending the outer peripheral edge portion of the bottom paper punched from the bottom member roll in a substantially circular shape. To the bottom of the mandrel (62) by vacuum suction.
【０００４】ステーション１：胴部材巻付け（ウィン
グ）工程
次に、図１０に示すように、プレヒーティングされた胴
部材（６３）をマンドレルに巻付ける。Station 1: Body Member Winding (Wing) Step Next, as shown in FIG. 10, the preheated body member (63) is wound around the mandrel.
【０００５】ステーション２：底部加熱工程
次に、図１１に示すように、胴部材と底部材とが接して
いる部分を、ヒーターノズル（６４）から吹き出される
熱風（６５）で加熱する。Station 2: Bottom heating step Next, as shown in FIG. 11, the portion where the body member and the bottom member are in contact with each other is heated by the hot air (65) blown from the heater nozzle (64).
【０００６】ステーション３：底部インカール工程
次に、図１２に示すように、インカール金型（６８）
で、胴部材を折り返し加工する。Station 3: Bottom Incurl Process Next, as shown in FIG. 12, incurl mold (68)
Then, the body member is folded back.
【０００７】ステーション４：底部完成工程
最後に、図１３に示すように、ガイドリング（６６）
と、ローレット（６７）とで、胴部材の折り返しをシャ
ープに加工すると共に、胴部材と底部材とが接する部分
を加圧シールして、環状脚部（５４）を形成する。Station 4: Bottom Completion Step Finally, as shown in FIG. 13, a guide ring (66).
And the knurling (67) sharply machine the folding back of the body member, and pressure-seal the portion where the body member and the bottom member are in contact with each other to form the annular leg portion (54).
【０００８】[0008]
【発明が解決しようとする課題】ところで、従来の紙カ
ップに、液状の内容物を充填して電子レンジにかけて加
熱調理を行なうと、電磁誘導による紙カップの底部周辺
の端面の焦げが問題となる。これは電磁波の集中による
蓄熱に起因すると推定されている。By the way, when a conventional paper cup is filled with a liquid content and heated in a microwave oven, there is a problem of charring of the end face around the bottom of the paper cup due to electromagnetic induction. It is estimated that this is due to heat storage due to the concentration of electromagnetic waves.
【０００９】紙カップの底部周辺の端面が焦げないよう
にするためには、底部（５２）の内面と胴部（５１）の
下縁との段差ｄ（図８参照）を小さくすれば良いこと
が、実験から判明している。In order to prevent the end face around the bottom of the paper cup from burning, it is sufficient to reduce the step d (see FIG. 8) between the inner surface of the bottom (52) and the lower edge of the body (51). , Proved from experiments.
【００１０】しかしながら、従来の紙カップの成形法
で、底部（５２）の内面と胴部（５１）の下縁との段差
ｄを小さくすると、環状脚部（５４）における胴部材と
底部材との有効接着幅も小さくなってしまい、電子レン
ジ加熱することにより内容物に滲み、漏れ等が発生し易
くなる。However, when the step d between the inner surface of the bottom portion (52) and the lower edge of the body portion (51) is reduced in the conventional method for forming a paper cup, the body member and the bottom member of the annular leg portion (54) are separated from each other. The effective bonding width also becomes small, and the contents are likely to bleed and leak when heated in a microwave oven.
【００１１】図１４のように、底部（５３）の中央部を
外側に張り出すことで、環状脚部（５４）における胴部
材と底部材との有効接着幅を充分に保ちながら、底部
（５２）の中央部内面と胴部（５１）の下縁との段差を
小さくすることも考えられる。しかし、この場合、底部
（５３）の中央部を外側に張り出すための金型と加圧設
備とを新規に導入する必要がある。As shown in FIG. 14, by projecting the central portion of the bottom portion (53) to the outside, the bottom portion (52) is maintained while the effective bonding width between the body member and the bottom member in the annular leg portion (54) is sufficiently maintained. It is also conceivable to reduce the level difference between the inner surface of the central part of () and the lower edge of the body part (51). However, in this case, it is necessary to newly introduce a mold and a pressurizing facility for projecting the central portion of the bottom portion (53) to the outside.
【００１２】本発明は、従来の紙カップ成型用設備を最
大限活用して作成可能で、環状脚部における胴部材と底
部材との有効接着幅を充分に確保し、かつ底部の内面と
胴部の下縁との段差が充分に小さい、電子レンジに対応
した紙カップを提供することを課題とする。The present invention can be produced by making maximum use of conventional paper cup molding equipment, sufficiently secures an effective bonding width between the body member and the bottom member in the annular leg portion, and at the same time, the inner surface of the bottom portion and the body portion. An object of the present invention is to provide a paper cup compatible with a microwave oven, which has a sufficiently small step from the lower edge.
【００１３】[0013]
【課題を解決するための手段】本発明において上記の課
題を達成するために、まず請求項１の発明では、胴部と
底部とからなる紙カップであって、胴部と底部との接合
部分の周縁は内側にカールして環状脚部が形成されてい
ることを特徴とする電子レンジ対応紙カップとしたもの
である。In order to achieve the above object in the present invention, first, in the invention of claim 1, there is provided a paper cup comprising a body portion and a bottom portion, and a joint portion of the body portion and the bottom portion is formed. The paper cup for microwave oven is characterized in that the peripheral edge is curled inwardly to form an annular leg portion.
【００１４】また請求項２の発明では、前記カールは、
隙間が無く密なものであることを特徴とする請求項１に
記載の電子レンジ対応紙カップとしたものである。According to the invention of claim 2, the curl is
The microwave oven-compatible paper cup according to claim 1, wherein the paper cup is dense and has no gaps.
【００１５】[0015]
【発明の実施の形態】本発明の電子レンジ対応紙カップ
を、一実施例に基づいて以下に詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION A microwave oven-compatible paper cup of the present invention will be described below in detail based on an embodiment.
【００１６】本発明の電子レンジ対応紙カップは、図１
に示すように、胴部（１１）と底部（１２）とからな
り、胴部（１１）と底部（１２）との接合部分の周縁
は、内側に隙間無く密にカールした環状脚部（１４）が
形成されている。底部（１２）の内面と胴部（１１）の
下縁との段差ｄは、４．５ｍｍ以下である。The microwave-capable paper cup of the present invention is shown in FIG.
As shown in FIG. 3, the peripheral portion of the joint portion between the body portion (11) and the bottom portion (12) and the joint portion between the body portion (11) and the bottom portion (12) has a ring-shaped leg portion (14) which is densely curled with no gap inside. ) Has been formed. The step d between the inner surface of the bottom portion (12) and the lower edge of the body portion (11) is 4.5 mm or less.
【００１７】また、本発明の電子レンジ対応紙カップ
は、図１に示すように、開口部周縁が外側にカールした
口縁部（１３）を有しても良いし、或いは、図示はして
いないが、上下方向に押しつぶした偏平な口縁部を有し
ても良い。Further, the microwave oven compatible paper cup of the present invention may have an edge portion (13) in which the peripheral edge of the opening portion is curled outward as shown in FIG. 1, or it is not shown. However, it may have a flat lip portion crushed in the vertical direction.
【００１８】紙カップに使用する材料は、胴部（１１）
を形成する胴部材、底部（１２）を形成する底部材と
も、坪量１５０〜３００ｇ／ｍ2程度のカップ原紙の両
面又は片面に、ポリエチレン樹脂、ポリプロピレン樹脂
などのポリオレフィン系樹脂を１０〜５０μｍ程度塗布
したポリオレフィン系樹脂加工紙を用いることが一般的
である。また、底部材の総厚と胴部材の総厚とを同じに
しても良いが、底部材の総厚を胴部材の総厚より３割程
度減らすことにより、胴部材と底部材との接合部分の成
形性が向上する。The material used for the paper cup is the body (11).
Both the body member forming the bottom part and the bottom member forming the bottom part (12) are coated with a polyolefin resin such as a polyethylene resin or a polypropylene resin on the both sides or one side of a cup base paper having a basis weight of about 150 to 300 g / m 2 of about 10 to 50 μm It is common to use coated polyolefin resin paper. Further, the total thickness of the bottom member and the total thickness of the body member may be the same, but by reducing the total thickness of the bottom member by about 30% from the total thickness of the body member, a joint portion between the body member and the bottom member is formed. The moldability of is improved.
【００１９】図１に示すような本発明の紙カップの底部
（１２）は、ＰＭＣ汎用紙カップ成型機によって、以下
のような工程を経て成形される。The bottom portion (12) of the paper cup of the present invention as shown in FIG. 1 is molded by the PMC general-purpose paper cup molding machine through the following steps.
【００２０】ステーション０：底部材パンチ及びドロー
工程
まず、図２に示すように、底部材用ロールからほぼ円形
状に打ち抜かれた底紙の外周縁部を折り曲げて作成され
た底部材（２１）を、マンドレル（２２）底部へ真空吸
着する。Station 0: Bottom member punching and drawing step First, as shown in FIG. 2, a bottom member (21) formed by bending the outer peripheral edge portion of the bottom paper punched from the bottom member roll in a substantially circular shape. To the bottom of the mandrel (22) by vacuum suction.
【００２１】ステーション１：胴部材巻付け（ウィン
グ）工程
次に、図３に示すように、プレヒーティングされた胴部
材（２３）をマンドレルに巻付ける。Station 1: Body Member Winding (Wing) Step Next, as shown in FIG. 3, the preheated body member (23) is wound around the mandrel.
【００２２】ステーション２：底部加熱工程
次に、図４に示すように、胴部材と底部材とが接してい
る部分を、ヒーターノズル（６４）から吹き出される熱
風（６５）で加熱する。Station 2: Bottom heating step Next, as shown in FIG. 4, the portion where the body member and the bottom member are in contact with each other is heated by hot air (65) blown from the heater nozzle (64).
【００２３】ステーション３：底部シール工程
次に、図５に示すように、ガイドリング（６６）と、ロ
ーレット（６７）とで、胴部材と底部材とが接する部分
を加圧シールする。Station 3: Bottom Sealing Step Next, as shown in FIG. 5, the guide ring (66) and the knurling (67) are used to press-seal the portion where the body member and the bottom member are in contact with each other.
【００２４】ステーション４：底部カール工程
次に、図６に示すように、インカール金型（２８）で、
胴部材と底部材との接合部分をインカール加工し、内側
にカールさせる。Station 4: Bottom curling step Next, as shown in FIG. 6, with an in curl mold (28),
The joint portion between the body member and the bottom member is incurled and curled inward.
【００２５】ステーション５：かしめ加工工程
最後に、図７に示すように、かしめ金型（２９）で、胴
部材と底部材との接合部分のカールに、かしめ加工を施
し、隙間が無く密なものにする。Station 5: Caulking process Finally, as shown in FIG. 7, a caulking die (29) is used for caulking the curl of the joint between the body member and the bottom member so that there is no gap and it is dense. Make something.
【００２６】尚、ステーション４での底部カール工程に
よって、底部（１２）の内面と胴部（１１）の下縁との
段差ｄが、４．５ｍｍ以下になったのであれば、ステー
ション５でのかしめ加工工程をしなくても良い。If the step d between the inner surface of the bottom portion (12) and the lower edge of the body portion (11) becomes 4.5 mm or less by the bottom curl process at the station 4, the station 5 at the station 5 It is not necessary to perform the caulking process.
【００２７】また、ステーション５のかしめ加工工程
は、ステーション０〜４の各工程と同機で行なっても良
いし、別機で行なっても良い。Further, the caulking process of the station 5 may be carried out by the same machine as each of the processes of the stations 0-4, or may be carried out by another machine.
【００２８】また、ステーション５のかしめ加工工程
で、かしめ金型が新たに必要になることを除けば、本発
明の電子レンジ対応紙カップの底部成形は、従来の紙カ
ップ成型設備を活用して行なうことができる。Further, except that a caulking die is newly required in the caulking process of the station 5, the bottom portion of the microwave-capable paper cup of the present invention is formed by utilizing the conventional paper cup forming equipment. You can
【００２９】[0029]
【発明の効果】以上、本発明には、従来の紙カップ成型
用設備を最大限活用して作成可能で、環状脚部における
胴部材と底部材との有効接着幅を充分に確保し、かつ底
部の内面と胴部の下縁との段差が充分に小さい、電子レ
ンジに対応した紙カップを提供することが可能になると
いう効果がある。As described above, according to the present invention, it is possible to make the most of the conventional paper cup molding equipment, to secure a sufficient effective bonding width between the body member and the bottom member in the annular leg portion, and to make the bottom portion. There is an effect that it is possible to provide a paper cup compatible with a microwave oven, in which the step between the inner surface of the and the lower edge of the body is sufficiently small.
【図１】本発明の電子レンジ対応紙カップの一例を説明
する部分断面図。FIG. 1 is a partial cross-sectional view illustrating an example of a microwave oven compatible paper cup of the present invention.
【図２】本発明の紙カップの底部成形における、底部材
パンチ及びドロー工程を説明する図。FIG. 2 is a diagram illustrating a bottom member punching and drawing process in the bottom molding of the paper cup of the present invention.
【図３】本発明の紙カップの底部成形における、胴部材
巻付け（ウィング）工程を説明する図。FIG. 3 is a diagram illustrating a body member winding (wing) step in forming the bottom portion of the paper cup of the present invention.
【図４】本発明の紙カップの底部成形における、底部加
熱工程を説明する図。FIG. 4 is a diagram explaining a bottom heating step in the bottom molding of the paper cup of the present invention.
【図５】本発明の紙カップの底部成形における、底部シ
ール工程を説明する図。FIG. 5 is a diagram illustrating a bottom sealing step in the bottom molding of the paper cup of the present invention.
【図６】本発明の紙カップの底辺成形における、底部カ
ール工程を説明する図。FIG. 6 is a diagram illustrating a bottom curl step in the bottom molding of the paper cup of the present invention.
【図７】本発明の紙カップの底辺成形における、かしめ
加工工程を説明する図。FIG. 7 is a diagram illustrating a caulking process in the bottom molding of the paper cup of the present invention.
【図８】従来の紙カップの一例を説明する部分断面図。FIG. 8 is a partial sectional view illustrating an example of a conventional paper cup.
【図９】従来の紙カップの底部成形における、底部材パ
ンチ及びドロー工程を説明する図。FIG. 9 is a diagram illustrating a bottom member punching and drawing process in the conventional bottom molding of a paper cup.
【図１０】従来の紙カップの底部成形における、胴部材
巻付け（ウィング）工程を説明する図。FIG. 10 is a diagram illustrating a body member winding (wing) step in the conventional bottom molding of a paper cup.
【図１１】従来の紙カップの底部成形における、底部加
熱工程を説明する図。FIG. 11 is a diagram illustrating a bottom heating step in the conventional bottom molding of a paper cup.
【図１２】従来の紙カップの底部成形における、底部イ
ンカール工程を説明する図。FIG. 12 is a diagram illustrating a bottom incurl process in the conventional bottom molding of a paper cup.
【図１３】従来の紙カップの底部成形における、底部完
成工程を説明する図。FIG. 13 is a diagram illustrating a bottom completion step in the conventional bottom molding of a paper cup.
【図１４】紙カップの底部を外側に張り出させるアイデ
ィアを説明する図。FIG. 14 is a diagram illustrating an idea of projecting the bottom of the paper cup to the outside.
１１…胴部 １２…底部 １３…口縁部 １４…環状脚部 ２１…底部材 ２２…マンドレル ２３…胴部材 ２４…ヒーターノズル ２５…熱風 ２６…ガイドリング（金型） ２７…ローレット ２８…インカール金型 ２９…かしめ金型 ５１…胴部 ５２…底部 ５３…口縁部 ５４…環状脚部 ６１…底部材 ６２…マンドレル ６３…胴部材 ６４…ヒーターノズル ６５…熱風 ６６…ガイドリング（金型） ６７…ロートレット ６８…インカール金型 ｄ…段差 11 ... Body 12 ... bottom 13 ... rim 14 ... Ring leg 21 ... Bottom member 22 ... Mandrel 23 ... Body member 24 ... Heater nozzle 25 ... hot air 26 ... Guide ring (mold) 27 ... Knurl 28 ... Incurl mold 29 ... Caulking die 51 ... trunk 52 ... bottom 53 ... rim 54 ... Annular leg 61 ... Bottom member 62 ... Mandrel 63 ... Body member 64 ... Heater nozzle 65 ... hot air 66 ... Guide ring (mold) 67 ... Rotoretto 68 ... Incurl mold d ... step
Claims (2)
胴部と底部との接合部分の周縁は内側にカールして環状
脚部が形成されていることを特徴とする電子レンジ対応
紙カップ。1. A paper cup comprising a body and a bottom,
A microwave-compatible paper cup, characterized in that the peripheral edge of the joint between the body and the bottom is curled inward to form an annular leg.
ことを特徴とする請求項１に記載の電子レンジ対応紙カ
ップ。2. The microwave oven compatible paper cup according to claim 1, wherein the curl is dense with no gaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001391145A JP2003192043A (en) | 2001-12-25 | 2001-12-25 | Paper cup usable for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001391145A JP2003192043A (en) | 2001-12-25 | 2001-12-25 | Paper cup usable for microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003192043A true JP2003192043A (en) | 2003-07-09 |
Family
ID=27598822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001391145A Pending JP2003192043A (en) | 2001-12-25 | 2001-12-25 | Paper cup usable for microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003192043A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158929A (en) * | 2011-12-12 | 2013-06-19 | 廖建华 | Heating packaging bag and manufacturing method thereof |
| JP2015101357A (en) * | 2013-11-22 | 2015-06-04 | 凸版印刷株式会社 | Paper cup container and its manufacturing method |
-
2001
- 2001-12-25 JP JP2001391145A patent/JP2003192043A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158929A (en) * | 2011-12-12 | 2013-06-19 | 廖建华 | Heating packaging bag and manufacturing method thereof |
| JP2015101357A (en) * | 2013-11-22 | 2015-06-04 | 凸版印刷株式会社 | Paper cup container and its manufacturing method |
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