JPH0272024A - Method for sealing paper container for liquid - Google Patents

Method for sealing paper container for liquid

Info

Publication number
JPH0272024A
JPH0272024A JP63215628A JP21562888A JPH0272024A JP H0272024 A JPH0272024 A JP H0272024A JP 63215628 A JP63215628 A JP 63215628A JP 21562888 A JP21562888 A JP 21562888A JP H0272024 A JPH0272024 A JP H0272024A
Authority
JP
Japan
Prior art keywords
sealed
sealing
cylindrical body
heated
presealed
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.)
Granted
Application number
JP63215628A
Other languages
Japanese (ja)
Other versions
JP2544450B2 (en
Inventor
Hiroaki Yasuda
安田　博昭
Hiroshi Yura
由良　弘
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 JP63215628A priority Critical patent/JP2544450B2/en
Publication of JPH0272024A publication Critical patent/JPH0272024A/en
Application granted granted Critical
Publication of JP2544450B2 publication Critical patent/JP2544450B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B29C66/43122—Closing the top of gable top containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis

Abstract

PURPOSE:To enable complete sealing while preventing a pin hole from being generated on a step at an adhered portion by a method wherein portions to be sealed at the upper or lower ends of a cylindrical body are heated and presealed, and then ultrasonic sealing is performed. CONSTITUTION:In process I, after a vessel 1 which is composed by closing the lower opening end of a cylindrical body formed by adhering the ends of a sheet having a thermal plastic resin layer on the surface of paper is filled with contents, the inner faces of portions 3 to be sealed at an upper opening end 2 are heated in an oven 4. At this time the front of the inner of the portion 3 to be sealed may be heated or only a step portion formed at the adhered portion of the cylindrical body may be heated. Next in process II, portions 3 to be sealed are presealed by adhering fused thermal plastic resin layers by press-heating or pressing. After being carried through processes III and IV, in process V, the portion 3 to be sealed which has been presealed is sealed by an ultrasonic sealing machine 5 to complete sealing.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は液体紙容器に内容物を充填した後、開口端をシ
ールして密封する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method of filling a liquid paper container with contents and then sealing the open end thereof.

〈従来技術〉 従来、この種の容器の開口端をシールして密封する場合
、超音波シール方式が用いられているが、超音波シール
は接着する材料どうしを押え付けた状態で高周波の振動
を与え、材料同士の摩擦熱で接着するため、（イ）圧力
が抜け、摩擦が起こらない部分は発熱しない（ｌ　加圧
状態で振動を与えるため、材料破壊が起こり昌いという
性質がある。<Prior art> Conventionally, when sealing the open end of this type of container, an ultrasonic sealing method has been used. (a) Pressure is released and the parts where no friction occurs do not generate heat (l) Since vibration is applied under pressure, materials are likely to break.

そこで、超音波シール方式を液体紙容器の筒状胴部の貼
合わせ部の段差を存する開口端のシールに採用する場合
、従来は第５図に示すように容器（ａ）の開口端（ｂ）
の内面にホットエアーを吹付けて加熱し、次の工程で仮
折（Ｃ）シて、次いで超音波シール（ｄ）シて密封を行
っている。Therefore, when the ultrasonic sealing method is adopted for sealing the open end of the liquid paper container where there is a step in the bonded part of the cylindrical body, conventionally, as shown in Fig. 5, the open end (b )
The inner surface of the sheet is heated by blowing hot air, and in the next step, it is temporarily folded (C) and then ultrasonically sealed (d) to seal it.

〈発明が解決しようとする課題〉 しかし、上記従来の超音波シールして密封する方法では
、１回の超音波シールだけで密封を行おうとするため、
第２図、又は第３図に示すような筒状胴部（ｅ）の貼合
わせ部（ｆ）が存在する個所においては材料の厚みにば
らつきがあるので超音波シール機の圧力が均一にかから
ず、したがって発熱不良部分が生じる。その結果、容器
の熱可塑性樹脂の流動が不十分で第４図に示す貼合わせ
部（ｆ）の段差（□□□（ロ）の部分で接着不良を起こ
す可能性がある。<Problems to be Solved by the Invention> However, in the conventional ultrasonic sealing method described above, since sealing is attempted with only one ultrasonic seal,
As shown in Figures 2 and 3, where the bonded part (f) of the cylindrical body part (e) is present, there are variations in the thickness of the material, so the pressure of the ultrasonic sealing machine is not applied uniformly. Therefore, a defective part of heat generation occurs. As a result, the flow of the thermoplastic resin in the container is insufficient, which may result in poor adhesion at the step (□□□ (b)) of the bonded portion (f) shown in FIG.

〈課題を解決するための手段〉 本発明は上記課題を解決するために考えられたもので、
−枚のシートの端部どうしを貼合わせて形成される筒状
胴部の天地開口端を封止して成る紙の表面に熱可塑性樹
脂層を有する容器の前記開口端をシールする方法であり
、予め、前記開口端のシール予定個所を加熱して予備シ
ールし、次いで超音波シールすることを特徴とする液体
紙容器の密封方法である。<Means for Solving the Problems> The present invention has been devised to solve the above problems.
- A method of sealing the open end of a container having a thermoplastic resin layer on the surface of paper, which is formed by sealing the top and bottom open ends of a cylindrical body formed by pasting together the ends of two sheets; , a method for sealing a liquid paper container, characterized in that the portion of the opening end to be sealed is preliminarily sealed by heating, and then ultrasonically sealed.

く作用〉 本発明は以上の構成になっており、筒状胴部の開口部の
シール予定個所の熱可塑性樹脂層が加熱され、加熱によ
り溶融した熱可塑性樹脂が超音波シール時に流動し易く
なり、筒状胴部の貼合わせ部の段差にも埋合わされる。Effects> The present invention has the above-described structure, whereby the thermoplastic resin layer at the opening of the cylindrical body at the portion to be sealed is heated, and the thermoplastic resin melted by heating becomes easier to flow during ultrasonic sealing. , it also compensates for the step difference in the bonded portion of the cylindrical body.

〈実施例〉 以下、図面に基づいて本発明の詳細な説明する。第１図
は本実施例の工程を示す説明図であり、まず工程Ｉにお
いて、紙の表面に熱可塑性樹脂層を有する一枚のシート
の端部どうしを貼合わせて形成される筒状胴部の下方開
口端を閉鎖して成る容器Ｈに内容物充填後、上方の開口
端（２）のシール予定個所（３）の内面をオーブン（４
）で加熱する。この場合、加熱するのはシール予定個所
（３）の内面前面でもよいし、面記筒状胴部の貼合わせ
部に生しる段差部だけでもよい。<Example> Hereinafter, the present invention will be described in detail based on the drawings. FIG. 1 is an explanatory diagram showing the steps of this example. First, in step I, a cylindrical body is formed by pasting together the ends of a sheet having a thermoplastic resin layer on the surface of the paper. After filling the container H formed by closing the lower open end of the oven (
). In this case, the area to be heated may be the inner front surface of the area to be sealed (3), or only the stepped portion formed at the bonded portion of the cylindrical trunk portion.

次に工程Ｈにおいて、加圧・加熱、又はカロ圧によって
、シール予定個所（３）の溶融した熱可塑性樹脂どうし
の接着により予備ソールする。次いで工程■、■と搬送
して工程Ｖにおいて前記予備シールしたシール予定個所
（３）を超音波シール機（５）でシールして密封を完了
する。Next, in step H, a preliminary sole is formed by adhering the molten thermoplastic resin at the area (3) to be sealed by applying pressure, heating, or Calo pressure. Next, the product is transported through steps (1) and (2), and in step V, the pre-sealed portion (3) to be sealed is sealed using an ultrasonic sealing machine (5) to complete the sealing.

〈発明の効果〉 本発明は以上の構成になっているので、超音波シールの
段階では、予備シールによりシール予定個所の熱可塑性
樹脂の流動性が良くなり、特に筒状胴部の貼合わせ部に
生しる段差部においても熱可塑性樹脂層にピンホール等
が生じることなく、完全な密封を行うことができる。<Effects of the Invention> Since the present invention has the above-described configuration, the preliminary sealing improves the fluidity of the thermoplastic resin in the area to be sealed, especially in the bonded area of the cylindrical body. Complete sealing can be achieved without pinholes or the like occurring in the thermoplastic resin layer even at stepped portions that occur in the thermoplastic resin layer.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例の工程を示す説明図、第２図
、第３図は本発明に係わる容器の別々の例の筒状胴部を
示す斜視図、第４図は容器の筒状胴部の貼合わせ部に生
じる段差を示す断面図、第５図は従来技術の工程を示す
説明図である。 （１）・・・容器　　　　　　　（２）・・・開口部（
３）・・・シール予定個所　　（４）・・・オーブン（
５）・・・超音波シール機 特　　許　　出　　願　　人 凸版印刷株式会社 代表者　鈴木和夫 ｖｙｍ　　　ＩＩ 第１図 工 第３図FIG. 1 is an explanatory diagram showing the steps of an embodiment of the present invention, FIGS. 2 and 3 are perspective views showing cylindrical bodies of different examples of containers according to the present invention, and FIG. FIG. 5 is a cross-sectional view showing a step formed in the bonded portion of the cylindrical body, and FIG. 5 is an explanatory view showing the process of the prior art. (1)... Container (2)... Opening (
3)...Positions to be sealed (4)...Oven (
5)... Ultrasonic sealing machine patent application Hitotoppan Printing Co., Ltd. Representative Kazuo Suzuki VYM II 1st drawing 3rd drawing

Claims (1)

【特許請求の範囲】[Claims] 一枚のシートの端部どうしを貼合わせて形成される筒状
胴部の天地開口端を封止して成る紙の表面に熱可塑製樹
脂層を有する容器の前記開口端をシールする方法であり
、予め、前記開口端のシール予定個所を加熱して予備シ
ールし、次いで超音波シールすることを特徴とする液体
紙容器の密封方法。A method of sealing the open end of a container having a thermoplastic resin layer on the surface of paper, which is formed by sealing the top and bottom open ends of a cylindrical body formed by pasting together the ends of one sheet. A method for sealing a liquid paper container, characterized in that the opening end portion to be sealed is pre-sealed by heating, and then ultrasonically sealed.
JP63215628A 1988-08-30 1988-08-30 Liquid Paper Container Sealing Method Expired - Fee Related JP2544450B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63215628A JP2544450B2 (en) 1988-08-30 1988-08-30 Liquid Paper Container Sealing Method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63215628A JP2544450B2 (en) 1988-08-30 1988-08-30 Liquid Paper Container Sealing Method

Publications (2)

Publication Number Publication Date
JPH0272024A true JPH0272024A (en) 1990-03-12
JP2544450B2 JP2544450B2 (en) 1996-10-16

Family

ID=16675552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63215628A Expired - Fee Related JP2544450B2 (en) 1988-08-30 1988-08-30 Liquid Paper Container Sealing Method

Country Status (1)

Country Link
JP (1) JP2544450B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2147774A1 (en) * 2008-07-22 2010-01-27 Toyo Jidoki Co., Ltd. Vertical - type bag packaging method and apparatus
CN114746345A (en) * 2020-05-23 2022-07-12 织宽工程株式会社 Film packaging bag with contents, vertical bag-making, filling and packaging machine, and method for manufacturing film packaging bag with contents

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4316053B2 (en) 1999-07-05 2009-08-19 四国化工機株式会社 Ultrasonic sealing device
JP4282179B2 (en) 1999-09-30 2009-06-17 四国化工機株式会社 Ultrasonic sealing device
JP4603122B2 (en) 2000-02-23 2010-12-22 四国化工機株式会社 Ultrasonic sealing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827919A (en) * 1971-08-16 1973-04-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827919A (en) * 1971-08-16 1973-04-13

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2147774A1 (en) * 2008-07-22 2010-01-27 Toyo Jidoki Co., Ltd. Vertical - type bag packaging method and apparatus
JP2010023887A (en) * 2008-07-22 2010-02-04 Toyo Jidoki Co Ltd Vertical-type bag packaging method and apparatus
US8245485B2 (en) 2008-07-22 2012-08-21 Toyo Jidoki Co., Ltd. Vertical-type bag packaging method and apparatus
CN114746345A (en) * 2020-05-23 2022-07-12 织宽工程株式会社 Film packaging bag with contents, vertical bag-making, filling and packaging machine, and method for manufacturing film packaging bag with contents

Also Published As

Publication number Publication date
JP2544450B2 (en) 1996-10-16

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