JPH0788062B2 - Sealing method for paper container spout - Google Patents

Sealing method for paper container spout

Info

Publication number
JPH0788062B2
JPH0788062B2 JP61085018A JP8501886A JPH0788062B2 JP H0788062 B2 JPH0788062 B2 JP H0788062B2 JP 61085018 A JP61085018 A JP 61085018A JP 8501886 A JP8501886 A JP 8501886A JP H0788062 B2 JPH0788062 B2 JP H0788062B2
Authority
JP
Japan
Prior art keywords
spout
paper container
sealing
seal
collar
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.)
Expired - Lifetime
Application number
JP61085018A
Other languages
Japanese (ja)
Other versions
JPS62242526A (en
Inventor
祥雄 飯田
僚一 川尻
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP61085018A priority Critical patent/JPH0788062B2/en
Publication of JPS62242526A publication Critical patent/JPS62242526A/en
Publication of JPH0788062B2 publication Critical patent/JPH0788062B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B29C66/05—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
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
    • B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
    • B29C66/53247—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers said spouts comprising flanges
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7162—Boxes, cartons, cases
    • B29L2031/7166—Cartons of the fruit juice or milk type, i.e. containers of polygonal cross sections formed by folding blanks into a tubular body with end-closing or contents-supporting elements, e.g. gable type containers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は，牛乳，ジュース，酒，その他の清涼飲料等の
内容物を収容する紙容器に，注出口を取付けシールする
方法に関する。TECHNICAL FIELD The present invention relates to a method for attaching and sealing a spout to a paper container that contains contents such as milk, juice, liquor, and other soft drinks.

〔従来の技術〕[Conventional technology]

飲料用液の容器として，従来の瓶に取って代わりつつあ
る紙容器は，その素材としてカートンから一貫して紙容
器を組み立て，これに内容物を充填密封して製品とする
ことにより，生産コストの低減を図ることができると共
に，使用後において容器を押し潰して簡単に廃棄処分す
ることができるという点で近年普及してきたものであ
る。更に，この紙容器の使用に当たって内容物注出の便
を図ると共に開封後の密封性を向上させるために，紙容
器頭部壁面に注出口を取付けることが盛んに行われてい
る。Paper containers, which are being replaced by conventional bottles as beverage liquid containers, are manufactured at a consistent cost by assembling paper containers from the carton as the raw material and filling and sealing the contents into the product to make the product. It has become widespread in recent years in that it can reduce the amount of waste and can easily dispose of it by crushing the container after use. Furthermore, in order to expedite the pouring out of the contents when using this paper container and to improve the sealing property after opening, it is actively practiced to attach a pouring port to the wall surface of the head of the paper container.

第４図は製造された一般的な紙容器を示す。紙容器１の
頭部には一対の傾斜面が形成され、該傾斜面の一側には
第５図に示すような注出口部2Aと円形のつば2Bとを有す
る注出口２が取付けられている。このような注出口２の
取付けは，紙容器１を組み立てる途中において，紙容器
１に形成した穴に，内面側から注出口２の注出口部2Aを
挿入して突き出させ，紙容器の内面側の壁面につば部2B
を押し当て、紙容器の壁面とつば部2Bとを注出口部2Aを
取り囲む環状に，且つ円形のつば部2Bの外周に沿って，
超音波シール等によりシールして行っている。FIG. 4 shows a general paper container manufactured. A pair of inclined surfaces is formed on the head of the paper container 1, and a spout 2 having a spout 2A and a circular collar 2B as shown in FIG. 5 is attached to one side of the inclined surfaces. There is. Such attachment of the spout 2 is made by inserting the spout 2A of the spout 2 from the inner surface side into the hole formed in the paper container 1 during the assembling of the paper container 1 so as to project the inner side of the paper container 1. 2B on the wall of
To press the wall surface of the paper container and the brim portion 2B in an annular shape surrounding the spout 2A, and along the outer circumference of the circular brim portion 2B,
It is done by ultrasonic sealing.

〔発明が解決しようとする課題〕[Problems to be Solved by the Invention]

最近，本出願人は注出口２として，開封口形状が特殊な
形状をしており，従って，注出口２を紙容器１に対して
所定の方向に取付ける必要のあるものを開発した。この
ような取付方向を規制すべき注出口に対しては，第５図
に示す円形のつば部では取付方向の規制が困難であるの
で，第６図に示すように，つば部として直線状のガイド
縁2Cを備えた非円形のつば部2Dを採用した。ところが，
このつば部2Dを紙容器１に取付けるに際して，従来と同
様に注出口2Aを取り囲む環状にシールを行ったところ，
次の問題点が生ずることが判明した。即ち，注出口付の
紙容器に内容物を無菌充填する場合，無菌チャンバー内
で紙容器及び注出口に殺菌液を噴霧する等により殺菌処
理するが，注出口２のつば部2Dの環状のシール部（第６
図にハッチングで示す）2Eの外側に非シール部2Fが存在
し，この部分のつば部と紙容器壁面との間には紙容器内
に通じる微小な隙間が生じており，その隙間に殺菌液が
入りにくく，殺菌不良となることが多く，また，殺菌液
が入った場合には，今度はその殺菌液が紙容器の乾燥操
作を行っても十分乾燥せずにそのまま残留し，内容物充
填後，内容物内に流出してしまう等の問題点を生じてい
た。Recently, the present applicant has developed a spout 2 having a special opening shape, so that the spout 2 needs to be attached to the paper container 1 in a predetermined direction. For such a spout whose mounting direction is to be regulated, it is difficult to regulate the mounting direction with the circular collar portion shown in FIG. 5, so as shown in FIG. A non-circular brim 2D with a guide edge 2C is used. However,
When attaching the collar portion 2D to the paper container 1, a ring-shaped seal surrounding the spout 2A was made as in the conventional case.
The following problems were found to occur. That is, when the contents are aseptically filled in a paper container with a spout, sterilization is performed by spraying a sterilizing solution on the paper container and spout in the aseptic chamber, but the annular seal of the collar 2D of the spout 2 is used. Division (6th
There is a non-sealing part 2F outside 2E (shown by hatching in the figure), and there is a minute gap that communicates with the inside of the paper container between the flange part of this part and the wall surface of the paper container. Is difficult to enter, often resulting in poor sterilization. In addition, when sterilizing liquid enters, this sterilizing liquid does not dry sufficiently even if the paper container is dried, and remains as it is, filling the contents. After that, problems such as leakage into the contents occurred.

本発明は，第６図に示すような新たな注出口を使用する
際の問題点に鑑みて為されたもので，第６図に示すよう
な，非円形部を備えたつば部を有する注出口を紙容器に
取付けた場合においても，殺菌を確実に行うことが可能
で，且つ充填物に殺菌液が混入するというトラブルを生
じない注出口のシール方法を提供することを目的とす
る。The present invention has been made in view of the problems in using a new spout as shown in FIG. 6, and has a collar portion with a non-circular portion as shown in FIG. An object of the present invention is to provide a method for sealing a spout which can surely perform sterilization even when the outlet is attached to a paper container and does not cause a trouble that a sterilizing liquid is mixed in a filling material.

〔課題を解決するための手段〕[Means for Solving the Problems]

上記目的を達成すべくなされた本発明は，注出口部と一
部に非円形外周を有するつば部とを有する注出口の前記
注出口部を紙容器の壁面の穴に内面側から挿入して突き
出させ，前記つば部を紙容器の内面側の壁面に押しつ
け，前記注出口部を取り囲む環状に，前記つば部と紙容
器とをシールし，且つ前記つば部の外周に沿ってつば部
と紙容器とをシールすることを特徴とする紙容器注出口
のシール方法を要旨とする。The present invention made to achieve the above object is to insert the spout portion of the spout having a spout portion and a brim portion having a non-circular outer periphery in part from the inner surface side into the hole of the wall surface of the paper container. It is made to stick out and the said collar part is pressed against the wall surface on the inner surface side of the paper container, the collar part and the paper container are sealed in an annular shape surrounding the spout part, and the collar part and the paper are provided along the outer periphery of the said collar part. A gist is a method of sealing a paper container spout, which is characterized in that a container is sealed.

〔作用〕[Action]

上記したように，本発明では注出口部を取り囲む環状
に，つば部と紙容器の壁面とをシールするので，例え注
出口取付時に注出口の取付角度が所定の角度からずれて
いても環状のシールは確実に行うことができ、注出口部
の周囲が確実に紙容器壁面にシールされ，紙容器内外の
密封が確実となる。更に，つば部の外周に沿ってもつば
部と紙容器とをシールしているので，つば部と紙容器の
壁面との間に非シール部があって隙間が生じていても，
その隙間がつば部の外周に沿うシールによって閉じら
れ，紙容器内に通じることがないので，殺菌不良が生じ
るとか，殺菌液が入りこんで残留し，充填後に流出する
等の問題点を引き起こすことがない。As described above, according to the present invention, the flange portion and the wall surface of the paper container are sealed in an annular shape surrounding the spout, so that even if the spout is mounted at an angle deviating from a predetermined angle, the spout is annular. The sealing can be surely performed, and the periphery of the spout is surely sealed to the wall surface of the paper container, so that the inside and outside of the paper container are securely sealed. Furthermore, since the collar portion and the paper container are sealed along the outer periphery of the collar portion, even if there is a non-sealed portion between the collar portion and the wall surface of the paper container and a gap is created,
Since the gap is closed by a seal along the outer circumference of the brim and does not reach the inside of the paper container, it may cause problems such as sterilization failure or sterilizing liquid entering and remaining and flowing out after filling. Absent.

〔実施例〕〔Example〕

以下，図面を参照して本発明の実施例を説明する。第１
図は紙容器の壁面に注出口を取付けてシールする状態を
示す断面図である。同図において,4は紙容器を構成する
表面に樹脂層を有する壁板,5は樹脂製の注出口である。
この注出口５は第６図に示す注出口２と同様な形状のも
のであり，注出口部5Aとつば部5Bとを有し、注出口部5A
にはキャップ5Cが取付けられている。つば部5Bは第３図
に示すように，片側が方形で反対側が円形をなした非円
形のものであり，その外周は直線部5a,5bと，円弧部5c
とで構成されている。第１図において,6はシール用の超
音波ホーン,7はアンビルである。超音波ホーン６の端面
は，第２図に示すように，環状のシール面6Aとその外側
に位置する外周シール面6Bとを有しており，環状のシー
ル面6Aは注出口５の注出口部5Aを取り囲み，且つつば部
5Bの円弧部5cと同一の外径を有し，外周シール面6Bはつ
ば部5Bの直線部5a,5bに沿った形状を為している。な
お，環状シール面6Aと外周シール面6Bとの接点部分には
微小な，例えば,0.5mm程度の隙間８が形成されている。
この隙間８は，環状シール面6Aと外周シール面6Bとが一
体化していると加工上の制約からこの部分のシール面積
が著しく増加し，単位面積当りの発熱量が低下し，他の
シールに支障を及ぼすために設けたものである。超音波
ホーン６の内部には，注出口５のキャップ5Cのための逃
げが形成され，その内面はテーパー面９となっている。
このテーパー面９は注出口５のキャップ5Cに案内されて
超音波ホーン６を注出口５に対して所定の位置に位置決
めするためのものである。Embodiments of the present invention will be described below with reference to the drawings. First
The figure is a cross-sectional view showing a state in which a spout is attached to the wall surface of a paper container and sealing is performed. In the figure, 4 is a wall plate having a resin layer on the surface constituting the paper container, and 5 is a spout made of resin.
The spout 5 has a shape similar to that of the spout 2 shown in FIG. 6, and has a spout 5A and a collar 5B.
Is equipped with a cap 5C. As shown in FIG. 3, the brim portion 5B is a non-circular shape in which one side is rectangular and the other side is circular, and the outer circumference thereof is straight portions 5a, 5b and arc portion 5c.
It consists of and. In FIG. 1, 6 is an ultrasonic horn for sealing, and 7 is an anvil. As shown in FIG. 2, the end surface of the ultrasonic horn 6 has an annular seal surface 6A and an outer peripheral seal surface 6B located outside thereof, and the annular seal surface 6A is the spout of the spout 5. Surrounding part 5A, and the brim part
It has the same outer diameter as the circular arc portion 5c of 5B, and the outer peripheral sealing surface 6B is formed along the straight portions 5a and 5b of the collar portion 5B. A small gap 8 of, for example, about 0.5 mm is formed at the contact portion between the annular seal surface 6A and the outer peripheral seal surface 6B.
If the annular seal surface 6A and the outer peripheral seal surface 6B are integrated in the gap 8, the sealing area of this portion remarkably increases due to processing restrictions, the heat generation amount per unit area decreases, and other seals are formed. It is provided to hinder the operation. A clearance for the cap 5C of the spout 5 is formed inside the ultrasonic horn 6, and its inner surface is a tapered surface 9.
The tapered surface 9 is for guiding the ultrasonic horn 6 to a predetermined position with respect to the spout 5 by being guided by the cap 5C of the spout 5.

次に，上記超音波ホーンを用いたシール方法を説明す
る。紙容器の組み立て途中において，壁板４の穴に，注
出口５を第１図に示す状態に，すなわち，注出口部5Aが
紙容器の内面側から外部に突出し，つば部5Bが内面側の
壁面に押し付けられるように挿入する。この時，注出口
５のつば部5Bはその直線部5aを利用して，常に一定方向
を向いている。この状態で，つば部5Bの下面をアンビル
７で支持し，壁板４の上方から，従って紙容器の外面側
から超音波ホーン６を押し付け，注出口５のつば部5Bと
壁板４とを超音波シールする。Next, a sealing method using the ultrasonic horn will be described. During the assembling of the paper container, the spout 5 is placed in the hole of the wall plate 4 in the state shown in FIG. 1, that is, the spout 5A projects outward from the inner surface of the paper container and the collar 5B is on the inner surface. Insert so that it can be pressed against the wall. At this time, the collar portion 5B of the spout 5 is always directed in a fixed direction by utilizing the straight portion 5a. In this state, the lower surface of the brim portion 5B is supported by the anvil 7, and the ultrasonic horn 6 is pressed from above the wall plate 4 and thus from the outer surface side of the paper container to bring the brim portion 5B of the spout 5 and the wall plate 4 into contact with each other. Ultrasonically seal.

このシール動作により，第３図にハッチングで示すよう
に，注出口部を取り囲む環状のシール部10とつば部5Bの
方形部の外周に沿った外周シール部11とが形成される。
この際，超音波ホーン６のシール面6A,6Bの間には，微
小な隙間８が形成されているが、隙間８は小さいので，
壁板４とつば部5Bとを超音波シールする際，この部分も
溶融，シールされることとなり，従って，第３図に示す
非シール部12はその周囲を確実にシールされることとな
る。かくして，注出口５はそれを取り囲む環状シール部
10及び外周シール部11により紙容器の壁板４にシールさ
れるため，紙容器内外の密封が確実に行われ，また，外
周シール部11が非シール部12を紙容器内とは遮断してい
るので，この非シール部12による殺菌液の残留や内容物
への汚染，未殺菌部の発生が防止される。By this sealing operation, as shown by hatching in FIG. 3, an annular seal portion 10 surrounding the spout portion and an outer peripheral seal portion 11 along the outer periphery of the square portion of the collar portion 5B are formed.
At this time, a minute gap 8 is formed between the sealing surfaces 6A and 6B of the ultrasonic horn 6, but since the gap 8 is small,
When the wall plate 4 and the brim portion 5B are ultrasonically sealed, this portion is also melted and sealed, so that the non-sealed portion 12 shown in FIG. 3 is surely sealed around its periphery. Thus, the spout 5 is an annular seal surrounding it.
10 and the outer peripheral sealing portion 11 seal the wall plate 4 of the paper container, so that the inside and outside of the paper container are reliably sealed, and the outer peripheral sealing portion 11 blocks the non-sealing portion 12 from the inside of the paper container. Therefore, the non-seal portion 12 can prevent the sterilizing liquid from remaining, the contents to be contaminated, and the non-sterilized portion from being generated.

ここで，注出口の取付，シール動作の際，注出口５のつ
ば部5Bの取付角度が若干狂うことがある。しかし，その
場合にも，環状のシール部10は必ず形成されるので，注
出口の周囲は確実にシールされ、紙容器内外の漏れが確
実に防止される。なお，注出口取付において，紙容器内
外の漏れを防止することが最も重要なことであるので，
外周のシール部11の形成により，注出口部5Aを取り囲む
環状のシール部10の形成が支障を受けることがないよ
う，外周のシール部11の形成を環状のシール部10の形成
よりも弱くすることが好ましい。Here, the mounting angle of the collar portion 5B of the spout 5 may be slightly misaligned during the mounting of the spout and the sealing operation. However, even in that case, since the annular seal portion 10 is always formed, the periphery of the spout is reliably sealed, and leakage inside and outside the paper container is surely prevented. In addition, since it is most important to prevent leakage inside and outside the paper container when installing the spout,
The formation of the outer peripheral seal portion 11 is made weaker than the formation of the annular seal portion 10 so that the formation of the annular seal portion 10 surrounding the spout 5A is not hindered by the formation of the outer peripheral seal portion 11. It is preferable.

〔発明の効果〕〔The invention's effect〕

以上の説明から明らかなように，本発明は注出口部と一
部に非円形外周を有するつば部とを有する注出口を紙容
器に，前記つば部が紙容器内面側に位置するように取付
けるに際し，前記注出口部を取り囲む環状に，前記つば
部と紙容器とをシールし，且つ前記つば部の外周に沿っ
てつば部と紙容器とをシールすることを特徴とするもの
であるので，例え注出口取付時に注出口の取付角度が所
定の角度からずれていても環状のシールは確実に行うこ
とができ，注出口部の周囲が確実に紙容器壁面にシール
され，紙容器内外の密封が確実となり，更に，つば部の
外周に沿ってもつば部と紙容器とをシールしているの
で，つば部と紙容器の壁面との間に非シール部があって
隙間が生じていても，その隙間がつば部の外周に沿うシ
ールによって閉じられ，紙容器内に通じることがないの
で，殺菌不良が生じるとか，殺菌液が入りこんで残留
し，内容物充填後に内容物内に混入して内容物を汚染す
るということがないという効果を有する。As is apparent from the above description, according to the present invention, a spout having a spout and a collar part having a non-circular outer periphery is attached to a paper container so that the spar is located on the inner surface side of the paper container. At this time, the collar portion and the paper container are sealed in an annular shape surrounding the spout portion, and the collar portion and the paper container are sealed along the outer periphery of the collar portion. Even if the installation angle of the spout is deviated from the specified angle when the spout is installed, the ring-shaped seal can be reliably performed, and the periphery of the spout is securely sealed to the wall surface of the paper container, and the inside and outside of the paper container is sealed. Since the flange portion and the paper container are sealed along the outer circumference of the flange portion, even if there is a non-sealed portion between the flange portion and the wall surface of the paper container, a gap is created. ， The gap is closed by a seal along the outer circumference of the collar. Has since no lead in the paper container, Toka sterilization failure occurs, sterilizing solution remaining penetrates, an effect that is not that contaminate the contents were mixed into the contents after contents fill.

【図面の簡単な説明】[Brief description of drawings]

第１図は本発明方法によるシール途中を示す断面図，第
２図は第１図の超音波ホーン６の端面図，第３図は本発
明方法によりシールする注出口の一例を示す平面図，第
４図は一般的な紙容器を示す斜視図，第５図はその紙容
器に使用する注出口の斜視図，第６図は新しい注出口を
示す斜視図である。 １…紙容器,2…注出口,4…壁板,5…注出口,5A…注出口
部,5B…つば部,5C…キャップ,5a,5b…直線部,5c…円弧
部,6…超音波ホーン,6A…環状のシール面,6B…外周シー
ル面,7…アンビル,8…隙間,10…環状シール部,11…外周
シール部,12…非シール部FIG. 1 is a cross-sectional view showing the middle of sealing by the method of the present invention, FIG. 2 is an end view of the ultrasonic horn 6 of FIG. 1, and FIG. 3 is a plan view showing an example of a spout for sealing by the method of the present invention. FIG. 4 is a perspective view showing a general paper container, FIG. 5 is a perspective view of a spout used for the paper container, and FIG. 6 is a perspective view showing a new spout. 1 ... paper container, 2 ... spout, 4 ... wall plate, 5 ... spout, 5A ... spout, 5B ... collar part, 5C ... cap, 5a, 5b ... straight part, 5c ... arc part, 6 ... super Sound wave horn, 6A ... Annular seal surface, 6B ... Outer peripheral seal surface, 7 ... Anvil, 8 ... Gap, 10 ... Annular seal part, 11 ... Outer peripheral seal part, 12 ... Non-seal part

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】注出口部と一部に非円形外周を有するつば
部とを有する注出口の前記注出口部を紙容器の壁面の穴
に内面側から挿入して突き出させ，前記つば部を紙容器
の内面側の壁面に押しつけ，前記注出口部を取り囲む環
状に，前記つば部と紙容器とをシールし，且つ前記つば
部の外周に沿ってつば部と紙容器とをシールすることを
特徴とする紙容器注出口のシール方法。1. A spout of a spout having a spout and a collar part having a non-circular outer periphery is inserted into a hole in a wall surface of a paper container from the inner surface side to project the spout. It is pressed against the inner wall surface of the paper container to seal the brim and the paper container in an annular shape surrounding the spout, and to seal the brim and the paper container along the outer periphery of the brim. A characteristic method for sealing the outlet of a paper container. 【請求項２】前記つば部と紙容器とのシールを，環状シ
ール面と外周シール面とを備え且つ両者の接点部分に微
小な隙間を設けて成る超音波ホーンを，紙容器外面側か
ら押し当てて，行うことを特徴とする特許請求の範囲第
１項記載の紙容器注出口のシール方法。2. An ultrasonic horn, which is provided with a seal between the flange portion and the paper container, is provided with an annular seal surface and an outer peripheral seal surface, and a minute gap is provided at a contact point between the two, and is pushed from the outer surface side of the paper container. The method for sealing a paper container spout according to claim 1, wherein the sealing is performed.
JP61085018A 1986-04-15 1986-04-15 Sealing method for paper container spout Expired - Lifetime JPH0788062B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61085018A JPH0788062B2 (en) 1986-04-15 1986-04-15 Sealing method for paper container spout

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61085018A JPH0788062B2 (en) 1986-04-15 1986-04-15 Sealing method for paper container spout

Publications (2)

Publication Number Publication Date
JPS62242526A JPS62242526A (en) 1987-10-23
JPH0788062B2 true JPH0788062B2 (en) 1995-09-27

Family

ID=13846993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61085018A Expired - Lifetime JPH0788062B2 (en) 1986-04-15 1986-04-15 Sealing method for paper container spout

Country Status (1)

Country Link
JP (1) JPH0788062B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2549496Y2 (en) * 1991-02-06 1997-09-30 凸版印刷株式会社 Spout welding equipment
JP4675549B2 (en) * 2003-02-24 2011-04-27 凸版印刷株式会社 Ultrasonic welding horn
JP2006347573A (en) * 2005-06-14 2006-12-28 Dainippon Printing Co Ltd Flange shape of spout

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171323A (en) * 1982-03-31 1983-10-08 凸版印刷株式会社 Fixture for mouth plug of carton in filling machine

Also Published As

Publication number Publication date
JPS62242526A (en) 1987-10-23

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