JP2004042987A - Paper cup for beverage and production method for the same - Google Patents

Paper cup for beverage and production method for the same Download PDF

Info

Publication number
JP2004042987A
JP2004042987A JP2002205240A JP2002205240A JP2004042987A JP 2004042987 A JP2004042987 A JP 2004042987A JP 2002205240 A JP2002205240 A JP 2002205240A JP 2002205240 A JP2002205240 A JP 2002205240A JP 2004042987 A JP2004042987 A JP 2004042987A
Authority
JP
Japan
Prior art keywords
cup
paper cup
paper
cup rim
rim portion
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
JP2002205240A
Other languages
Japanese (ja)
Inventor
Eishin Miyake
三宅 英信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP2002205240A priority Critical patent/JP2004042987A/en
Publication of JP2004042987A publication Critical patent/JP2004042987A/en
Pending legal-status Critical Current

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper cup for a beverage and the production method for the same which seals a content airtight and gives a smoother touch in drinking. <P>SOLUTION: This paper cup (10) comprises a body part (11) and a bottom part (12), and is provided with a cup rim part (13) formed by curling the peripheral edge of an opening outward. The body member structuring the body part (11) and the bottom member structuring the bottom part (12) are made of a compound paper where a thermoplastic layer is laminated at least on the inner face side. The cup rim part (13) is pressed vertically to be flat, and a tip end part (14) is curved downward. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、飲料用の紙カップとその製造方法に関するものである。
【0002】
【従来の技術】
紙カップのカップリム部を超音波ホーンを用いて圧縮融着させて平らに形成させ、蓋材とのシール時の密封性を向上させることは良く知られている。
しかしながら、該紙カップをカップリム部に口を当てて、例えば、ジュースのような液体飲料を飲むような使い方をした場合には、口当たりが悪いため、そのような用途に使用させることは少ない。
【0003】
また、上述のように平らに形成されたカップリム部を有する紙カップの開口部を蓋材で覆って密封シールした場合、カップリム部におけるシール幅(接着面積)が広くなることから開封する際に非常に強い力が必要になってくると共に、開封した際、カップリム部の先端が蓋材を開封する方向(上方)に捲れ上がってしまうなどして、口当たりの悪いものとなっていた。
【0004】
【発明が解決しようとする課題】
本発明は、カップリム部を上下方向に押圧して偏平に形成させた紙カップに関する以上のような問題点を解決するためになされたもので、内容物の密封性を確保すると共に、飲用時の口当たり性を向上させた飲料用の紙カップとその製造方法を提供することを課題とする。
【0005】
【課題を解決するための手段】
本発明の請求項1の発明は、胴部と底部とからなり、開口部周縁が外側にカールしたカップリム部を有する紙カップであって、前記胴部を構成する胴部材、底部を構成する底部材ともに、少なくとも内面側に熱可塑性樹脂層が積層された複合紙から構成され、前記カップリム部が上下方向より押圧されて偏平に形成されると共に、先端部は曲線を描いて下方に曲がって形成されていることを特徴とする飲料用紙カップである。
【0006】
このように請求項1記載の発明によれば、胴部を構成する胴部材、底部を構成する底部材ともに、少なくとも内面側に熱可塑性樹脂層が積層された複合紙から構成され、カップリム部が上下方向より押圧されて偏平に形成されると共に、先端部分はあたかも帽子のつばの先端部分のように曲線を描いて下方に曲がって形成されているので、カップリム部の上側と下側は熱融着されて偏平に形成され、蓋材との密封性が確保できると同時に口当たり性も良い。
【0007】
また、請求項2の発明は、紙カップを作製後、超音波ホーンを用いて前記紙カップのカップリム部を偏平に押圧して融着させると同時に、カップリム部の先端部分を下方に曲げて成形することを特徴とする飲料用紙カップの製造方法である。
【0008】
このように請求項2記載の発明によれば、紙カップ作製後に、カップリム部を超音波ホーンを用いて押圧加工をしているので、無理なくカップリム部の曲げ加工ができる。
【0009】
【発明の実施の形態】
本発明の飲料用紙カップを一実施形態に基づいて以下に詳細に説明する。
本発明の飲料用紙カップは、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カップリム部(13)を有する紙カップ(10)であり、前記カップリム部(13)が、上下方向より押圧されて偏平に形成されると共に、先端部(14)は、曲線を描いて下方に曲げて形成されているものである。
【0010】
紙カップ(10)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に坪量が170〜310g/m2 程度のカップ原紙の片面、又は両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使用して一般的な紙カップ成形機で作製することができる。
【0011】
つぎにカップリム部(13)を偏平にする押圧方法について説明する。
図2は、開口部周縁が外側にカールしたカップリム部(13)を有する紙カップ(10)を偏平加工するため、超音波ホーンの受け型にセットして偏平加工している状態を示す模式説明図である。
【0012】
図2において、(51)は超音波ホーンの受け型、(52)は超音波ホーンを表す。
カップリム部(13)がドーナツ状の凸部(T)を有する超音波ホーンの受け型(51)およびドーナツ状の凸部を受ける凹部(O)を有する超音波ホーン(52)にセットされる。
ついで、超音波ホーン(52)が下方に下がり、カップリム部(53)を圧縮すると共にホーンの発振熱によってカップリム部(13)の上下を熱融着して偏平に成形すると同時に、カップリム部の先端部分(14)は曲線を描いて下方に曲がって形成される。
【0013】
図3は、このようにして作製した周縁部分のみが曲線を描くように下方に曲がってそれ以外の部分では偏平に加工されたカップリム部(13)を有する紙カップ(10)の開口部に蓋材(20)を被せて熱シールした状態を示す説明図である。
【0014】
図3から明らかなように、蓋材(20)を剥がすとき、カップリム部(13)が上に上がり難くなり、容易に、かつ、確実に蓋材を剥がすことが可能になる。
カップリム部(13)に曲がりがあることで紙カップの保形性が向上する。
さらに、シール幅が狭くなるので、比較的力を加えなくとも蓋材を開封することが可能になる。
【0015】
【発明の効果】
このように、本発明の飲料用紙カップはカップリム部の先端部が曲線を描いて下方に下がって形成されているので、従来のカップリム部を潰さない場合と同様の口当たりの良さを有し、かつ、内容物の密封性にも優れた飲料用の紙カップである。
【図面の簡単な説明】
【図1】本発明の飲料用紙カップの一実施例を示す、部分断面説明図である。
【図2】(a)はカップリム部を超音波ホーンの受け型にセットした状態の一実施例を示す、模式説明図であり、(b)は超音波ホーンが下がってカップリム部を偏平に加工している状態の一実施例を示す、模式説明図である。
【図3】本発明の飲料用紙カップの開口部に蓋材を被せて密封シールした状態を示す、部分断面説明図である。
【符号の説明】
10‥‥紙カップ
11‥‥胴部
12‥‥底部
13‥‥カップリム部
14‥‥カップリム部先端部
20‥‥蓋材
51‥‥超音波ホーンの受け型
52‥‥超音波ホーン
O‥‥凹部
T‥‥凸部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a paper cup for beverages and a method for producing the same.
[0002]
[Prior art]
It is well known that the cup rim portion of a paper cup is compressed and fused using an ultrasonic horn to form a flat shape, thereby improving the sealing performance when sealing with a lid member.
However, in the case where the paper cup is put on the cup rim portion and the liquid drink such as juice is used, for example, the paper cup has a poor mouthfeel and is rarely used for such purposes.
[0003]
In addition, when the opening of the paper cup having the cup rim portion formed flat as described above is covered with the lid material and hermetically sealed, the sealing width (adhesion area) at the cup rim portion is increased, so that it is very difficult to open the cup rim. A strong force is required, and when opened, the tip of the cup rim portion is turned up in the opening direction (upward) of the lid material, and the mouth feel is poor.
[0004]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems relating to a paper cup formed by pressing a cup rim portion in a vertical direction so as to be flat. It is an object of the present invention to provide a paper cup for beverages with improved properties and a method for producing the same.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention is a paper cup comprising a body and a bottom, and a cup rim having a periphery of the opening curled outward, wherein the body and the bottom constitute the body. Both are composed of composite paper in which a thermoplastic resin layer is laminated on at least the inner surface side, and the cup rim portion is pressed from the vertical direction to be formed flat, and the tip portion is formed by bending downward in a curved line. A beverage paper cup characterized in that:
[0006]
As described above, according to the first aspect of the present invention, both the body member forming the body portion and the bottom member forming the bottom portion are made of composite paper having a thermoplastic resin layer laminated on at least the inner surface side, and the cup rim portion is formed. The top and bottom sides of the cup rim are heat-fused because they are pressed flat from the top and bottom to form a flat shape, and the tip is bent downward in a curved line like a tip of a hat brim. It is attached and formed flat, so that the sealing performance with the lid material can be ensured and the mouthfeel is good.
[0007]
The invention according to claim 2 is that, after the paper cup is manufactured, the cup rim portion of the paper cup is pressed flat and fused using an ultrasonic horn, and at the same time, the tip portion of the cup rim portion is bent downward to be formed. A method for producing a beverage paper cup.
[0008]
According to the second aspect of the present invention, since the cup rim is pressed by using the ultrasonic horn after the paper cup is manufactured, the cup rim can be bent without difficulty.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
The beverage paper cup of the present invention will be described in detail below based on one embodiment.
As shown in FIG. 1, for example, a beverage paper cup according to the present invention includes a body (11) and a bottom (12), and has a cup rim (13) whose outer periphery is curled outward. The cup rim portion (13) is pressed flat in the vertical direction and is formed flat, and the tip portion (14) is formed by bending downward in a curved line.
[0010]
The paper cup (10) is made of a low-density polyethylene resin on one or both sides of a cup base paper having a basis weight of about 170 to 310 g / m 2 for both the body member forming the body portion (11) and the bottom member forming the bottom portion (12). Can be produced by a general paper cup molding machine using polyethylene processed paper coated with about 20 to 40 μm.
[0011]
Next, a pressing method for flattening the cup rim portion (13) will be described.
FIG. 2 is a schematic explanatory view showing a state in which a paper cup (10) having a cup rim portion (13) whose outer periphery is curled outward is set in a receiving mold of an ultrasonic horn and flattened. It is.
[0012]
In FIG. 2, (51) represents an ultrasonic horn receiving mold, and (52) represents an ultrasonic horn.
The cup rim portion (13) is set on an ultrasonic horn receiving mold (51) having a donut-shaped convex portion (T) and an ultrasonic horn (52) having a concave portion (O) for receiving the donut-shaped convex portion.
Then, the ultrasonic horn (52) is lowered, compressing the cup rim portion (53) and heat-fusing the upper and lower portions of the cup rim portion (13) by the oscillating heat of the horn to form a flat shape. The part (14) is formed to bend downward in a curved line.
[0013]
FIG. 3 shows a lid material on an opening of a paper cup (10) having a cup rim portion (13) in which only the peripheral portion formed in this way is bent downward so as to draw a curve and the other portion is flattened. It is explanatory drawing which shows the state which covered (20) and was heat-sealed.
[0014]
As is clear from FIG. 3, when the lid member (20) is peeled off, the cup rim portion (13) does not easily rise upward, and the lid member can be peeled off easily and reliably.
The bent shape of the cup rim portion (13) improves the shape retention of the paper cup.
Further, since the seal width is narrowed, the lid can be opened without relatively applying force.
[0015]
【The invention's effect】
As described above, the beverage paper cup of the present invention is formed so that the tip of the cup rim portion is downwardly curved and drawn downward, so that it has the same mouthfeel as the conventional case where the cup rim portion is not crushed, and It is a paper cup for beverages that also has excellent sealing properties.
[Brief description of the drawings]
FIG. 1 is a partially sectional explanatory view showing one embodiment of a beverage paper cup of the present invention.
FIG. 2 (a) is a schematic explanatory view showing an embodiment in which a cup rim portion is set on a receiving mold of an ultrasonic horn, and FIG. 2 (b) is a diagram in which the ultrasonic horn is lowered and the cup rim portion is flattened. FIG. 4 is a schematic explanatory view showing an example of a state in which the operation is performed.
FIG. 3 is a partial cross-sectional explanatory view showing a state in which a lid member is placed over an opening of a beverage paper cup of the present invention and hermetically sealed;
[Explanation of symbols]
10 paper cup 11 body 12 bottom 13 cup rim 14 cup rim tip 20 lid 51 ultrasonic horn receiving mold 52 ultrasonic horn O concave T ‥‥ convex

Claims (2)

胴部と底部とからなり、開口部周縁が外側にカールしたカップリム部を有する紙カップであって、前記胴部を構成する胴部材、底部を構成する底部材ともに、少なくとも内面側に熱可塑性樹脂層が積層された複合紙から構成され、前記カップリム部が上下方向より押圧されて偏平に形成されると共に、先端部は曲線を描いて下方に曲がって形成されていることを特徴とする飲料用紙カップ。A paper cup comprising a body portion and a bottom portion, and having a cup rim portion in which an opening periphery is curled outward, wherein both the body member constituting the body portion and the bottom member constituting the bottom portion have a thermoplastic resin layer at least on the inner surface side. Wherein the cup rim portion is pressed from above and below to form a flat shape, and the leading end portion is formed to be curved downward and bent downward. . 紙カップを作製後、超音波ホーンを用いて前記紙カップのカップリム部を偏平に押圧して融着させると同時に、カップリム部の先端部分を下方に曲げて成形することを特徴とする飲料用紙カップの製造方法。Manufacturing the paper cup, wherein the cup rim portion of the paper cup is pressed flat and fused by using an ultrasonic horn after the paper cup is produced, and the tip portion of the cup rim portion is bent downward and molded. Method.
JP2002205240A 2002-07-15 2002-07-15 Paper cup for beverage and production method for the same Pending JP2004042987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002205240A JP2004042987A (en) 2002-07-15 2002-07-15 Paper cup for beverage and production method for the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002205240A JP2004042987A (en) 2002-07-15 2002-07-15 Paper cup for beverage and production method for the same

Publications (1)

Publication Number Publication Date
JP2004042987A true JP2004042987A (en) 2004-02-12

Family

ID=31710597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002205240A Pending JP2004042987A (en) 2002-07-15 2002-07-15 Paper cup for beverage and production method for the same

Country Status (1)

Country Link
JP (1) JP2004042987A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008030378A (en) * 2006-07-31 2008-02-14 Dainippon Printing Co Ltd Method for manufacturing double container
JP2009184169A (en) * 2008-02-05 2009-08-20 Toppan Printing Co Ltd Ultrasonic adhesion device for paper cup, ultrasonic horn, cup holder mold, and manufacturing method for paper cup using the same
JP2014005000A (en) * 2012-06-21 2014-01-16 Toppan Printing Co Ltd Cup type paper container
WO2016013254A1 (en) * 2014-07-24 2016-01-28 東罐興業株式会社 Container and container manufacturing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008030378A (en) * 2006-07-31 2008-02-14 Dainippon Printing Co Ltd Method for manufacturing double container
JP2009184169A (en) * 2008-02-05 2009-08-20 Toppan Printing Co Ltd Ultrasonic adhesion device for paper cup, ultrasonic horn, cup holder mold, and manufacturing method for paper cup using the same
JP2014005000A (en) * 2012-06-21 2014-01-16 Toppan Printing Co Ltd Cup type paper container
WO2016013254A1 (en) * 2014-07-24 2016-01-28 東罐興業株式会社 Container and container manufacturing method
JPWO2016013254A1 (en) * 2014-07-24 2017-05-18 東罐興業株式会社 Container and container manufacturing method

Similar Documents

Publication Publication Date Title
JPH05201436A (en) Mouth opening device and manufacture thereof
JP2004042987A (en) Paper cup for beverage and production method for the same
JP2505733B2 (en) Sealed package and manufacturing method thereof
JP3746819B2 (en) Composite container, manufacturing method thereof and manufacturing apparatus thereof
JP6315728B2 (en) Container and container manufacturing method
JP3847306B2 (en) Paper container manufacturing method
JP2901474B2 (en) Mouth of medical plastic container and method of manufacturing medical plastic container
JP6822405B2 (en) How to make a paper container
US5165974A (en) Multilayer plastics containers and methods of producing the same
JP2003053858A (en) Method for manufacturing flanged paper container
JP4517446B2 (en) Cup-shaped container
JP2003191941A (en) Paper cup adaptable to sealing lid
CN215591478U (en) Closed cover of direct drinking type paper cup cover
JP4300883B2 (en) Cup-shaped container with a cap with a small lid
CN212074969U (en) Directional easy-tear aluminum-plastic combined cover
JPS594946Y2 (en) Sealed container with opening device
KR200293906Y1 (en) Paper lid
JP4478287B2 (en) Cup-shaped container
JP6478460B2 (en) Beverage paper container
JP3580007B2 (en) Container sealing method
JPH0648436A (en) Container for beverage
JP2001122205A (en) Top sealing method for paper container
JP2003137324A (en) Beverage packaging container and manufacturing method therefor
JPS59142953A (en) Manufacture of hermetically sealable cover
JP6399886B2 (en) Paper container