JPH03212327A - Sealing method for packaging bag - Google Patents

Sealing method for packaging bag

Info

Publication number
JPH03212327A
JPH03212327A JP2002509A JP250990A JPH03212327A JP H03212327 A JPH03212327 A JP H03212327A JP 2002509 A JP2002509 A JP 2002509A JP 250990 A JP250990 A JP 250990A JP H03212327 A JPH03212327 A JP H03212327A
Authority
JP
Japan
Prior art keywords
sealing
ultrasonic
packaging bag
sealed
width
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
JP2002509A
Other languages
Japanese (ja)
Other versions
JP3079185B2 (en
Inventor
Makoto Ichikawa
誠 依知川
Tokuo Kosuge
小菅　徳雄
Akio Obata
明雄 小幡
Masatoshi Saeki
佐伯　昌俊
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.)
Kikkoman Corp
Fujimori Kogyo Co Ltd
Original Assignee
Kikkoman Corp
Fujimori Kogyo 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 Kikkoman Corp, Fujimori Kogyo Co Ltd filed Critical Kikkoman Corp
Priority to JP02002509A priority Critical patent/JP3079185B2/en
Publication of JPH03212327A publication Critical patent/JPH03212327A/en
Application granted granted Critical
Publication of JP3079185B2 publication Critical patent/JP3079185B2/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
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • 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
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • 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
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • 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
    • B29L2031/7128—Bags, sacks, sachets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)

Abstract

PURPOSE:To make an assured airtight sealing possible by a method wherein after sealing an opening by ultrasonic waves, thermal sealing with a wider width is applied from the top of the sealed part. CONSTITUTION:After filling a content in a gusset bag 1, a sealing part 2 is sealed by ultrasonic waves, e.g., with a width of 3 - 10mm. The part on which ultrasonic waves have been cast and the vicinity there of present a clean condition because a content which was sticking there is removed by the ultrasonic waves. Then, from the top of the ultrasonic wave sealed part, thermal sealing is applied again by hot plate heating or dielectric heating. Sealing in this case is performed for a wider width than the width of the ultrasonic wave sealed part, e.g., for a width of 8 - 15mm.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、包装袋の封緘方法に関する。更に詳しくは、
包装袋に内容物を充填した後の、包装袋開口部内面の封
緘部分に内容物が付着した状態においても、開口部を確
実に封緘する方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for sealing a packaging bag. For more details,
The present invention relates to a method for reliably sealing an opening even when the contents are attached to the sealing portion on the inner surface of the opening of the packaging bag after the packaging bag is filled with contents.

（従来技術及び発明が解決しようとする課題）最内層に
熱接着性樹脂層を有する包装袋に内容物を充填した後、
その開口部を密封封緘する場合には、一般には熱板によ
るシール、誘導加熱シール、インパルスシール等による
熱封緘方法が採用されている。しかしこれらの熱封緘方
法では封緘部分に内容物が付着すると、熱封緘が不完全
となり、保管中に該開口部より内容物が漏洩することが
ある。(Prior art and problem to be solved by the invention) After filling a packaging bag having a thermoadhesive resin layer as the innermost layer,
When sealing the opening, heat sealing methods such as heat plate sealing, induction heating sealing, impulse sealing, etc. are generally employed. However, in these heat sealing methods, if the contents adhere to the sealed portion, the heat seal may be incomplete and the contents may leak from the opening during storage.

また包装袋が襞の付いたガゼツト袋の場合には、襞のあ
る部分が４枚の包装材料が重なった部分で、他の部分は
２枚であるため、同時に熱封緘を行なうと、襞との境の
ところに段差があるため、封緘時の熱圧着に差異を生じ
て空隙（ボイド）を生じやすく、此の部分より内容物が
漏洩することがある。In addition, if the packaging bag is a gusset bag with pleats, the pleated area is where four layers of packaging material overlap, and the other areas are two layers, so if you heat seal them at the same time, the folds and folds will overlap. Because there is a step at the border, there is a difference in thermocompression bonding during sealing, which tends to create voids, and the contents may leak from this area.

このため、これらの熱封緘方法の欠点を防止する目的で
、種々の方法が提案されている。しかし製袋、充填及び
封緘の操作を一つの機械で行なう自動充填方法において
は適切な方法は開発されていない。Therefore, various methods have been proposed in order to avoid the drawbacks of these heat sealing methods. However, no suitable method has been developed for an automatic filling method in which bag making, filling, and sealing operations are performed in one machine.

そこで、上記欠点を解消する一つの方法として、超音波
による封緘方法が試みられた。この超音波による封緘方
法においては、封緘部内面に付着している内容物を超音
波振動により封緘部分から排除するので、封緘部分が清
浄化され、前記の支障がなくなるため、この方法は封緘
部分に内容物が付着したり、或いは内容物を噛み込んで
熱封緘する、いわゆる液中シールには好ましい封緘方法
である長所をもつ。Therefore, as a method to overcome the above-mentioned drawbacks, an ultrasonic sealing method was attempted. In this ultrasonic sealing method, the contents adhering to the inner surface of the sealed part are removed from the sealed part by ultrasonic vibration, so the sealed part is cleaned and the above-mentioned troubles are eliminated. It has the advantage that it is a preferable sealing method for so-called liquid seals, in which the contents adhere to or are caught in the heat seal.

しかし、この超音波による封緘方法は封緘時にかなりの
高圧で圧着するため、主として比較的剛性が大きく、し
かも厚手の包装材料の封緘には適するが、プラスチック
フィルムなどを積層した軟質包装材料の場合には適した
方法とは言い難い。However, this method of sealing using ultrasonic waves is suitable for sealing relatively rigid and thick packaging materials because it is crimped with quite high pressure during sealing, but it is suitable for sealing soft packaging materials such as laminated plastic films. cannot be said to be a suitable method.

すなわち、上記のような軟質包装材料の場合でも、超音
波を適用して封緘することは可能であるが、超音波封緘
を行なうと、内面の熱接着性樹脂層を接着するのみなら
ず、軟包装材料として強度等を保持するための基材、例
えば、ポリエステル、ナイロン等の表面材料まで超音波
１こより発生する熱により溶融し、封緘部分の物理的な
強度を低下させると同時に、封緘部分の端縁を溶融して
包装袋自体の強度を低下し、所謂材は根切れ現象を発３
− 生しやすくなる欠点がある。In other words, even in the case of soft packaging materials such as those mentioned above, it is possible to apply ultrasonic waves to seal them. The base material used to maintain strength as a packaging material, such as surface materials such as polyester and nylon, is melted by the heat generated by a single ultrasonic wave, reducing the physical strength of the sealed portion and at the same time causing damage to the sealed portion. The edges melt, reducing the strength of the packaging bag itself, and causing the so-called root breakage phenomenon.
− It has the disadvantage of making it easier to grow.

本発明は、超音波による封緘方法の前記の長所を活かし
、そして封緘部分やその端縁の強度が低下するという欠
点を解消した、包装袋の封緘方法を提供することを目的
とする。An object of the present invention is to provide a method for sealing a packaging bag, which takes advantage of the above-mentioned advantages of the ultrasonic sealing method and eliminates the drawback of reduced strength of the sealed portion and its edges.

（課題を解決するための手段） 本発明者は、前記の課題を解決すべく種々検討した結果
、超音波による封緘方法で強度が低下した封緘部分やそ
の端縁にもう一度熱封緘処理を、施すことによって、そ
の強度を向上し得ることを知見し、本発明を完成した。(Means for Solving the Problems) As a result of various studies to solve the above-mentioned problems, the inventor of the present invention has determined that a heat sealing treatment is once again applied to the sealed portions and their edges whose strength has been reduced by the ultrasonic sealing method. The present invention was completed based on the finding that the strength can be improved by doing so.

すなわち本発明は、最内層に熱接着性樹脂層を有する包
装袋に内容物を充填した後、その開口部を密封封緘する
方法において、該開口部を超音波により封緘した後、更
に該超音波封緘部の上から、該封緘部より広幅の熱封緘
を行なうことを特徴とする包装袋の封緘方法である。That is, the present invention provides a method of filling a packaging bag having a heat-adhesive resin layer as the innermost layer with contents and then sealing the opening thereof. This method of sealing a packaging bag is characterized in that heat sealing is performed from above the sealing part to a width wider than the sealing part.

本発明によれば、最内層に熱接着性樹脂層を有する包装
袋に内容物を充填し、次いで開口部を密封封緘するに際
し、先ず、その封緘を超音波によ４− る封緘方法で行なったので、封緘部分に内容物が付着し
ていても、この付着した内容物は超音波による振動によ
り、封緘部分或いはその周辺から排除されるため、封緘
そのものが良好に行なえる。According to the present invention, when a packaging bag having a thermoadhesive resin layer as the innermost layer is filled with contents and then the opening is hermetically sealed, the sealing is first performed using an ultrasonic sealing method. Therefore, even if the contents adhere to the sealed portion, the adhered contents are removed from the sealed portion or its surroundings by the ultrasonic vibrations, so that the sealing itself can be performed satisfactorily.

また、ガゼツト袋のように襞のある包装袋についても空
隙を発生させることなく密封封緘することが出来る。Further, packaging bags with pleats such as gusset bags can be hermetically sealed without creating any voids.

そして、この超音波による封緘においては、特に包装袋
が軟質包装材料からなるときには基材そのものが溶融し
たりして封緘部分やその端縁の強度が低下する場合があ
るが、本発明では、この超音波封緘部の上から、更に該
封緘部の幅より広幅に、加熱板、加熱ロール、誘電加熱
等の超音波以外の手段で熱封緘を行ない、超音波封緘部
及びその周辺を再度熱接着することによって、前記低下
した強度を再び向上させ、優れた密封封緘を行なうこと
が出来る。また上記の超音波による封緘時に、付着した
内容物が封緘部及びその周辺から排除されているため、
その後の超音波以外の手段による熱封緘も支障なく行な
うことが出来る。In this ultrasonic sealing process, especially when the packaging bag is made of a soft packaging material, the base material itself may melt, reducing the strength of the sealed portion and its edges. Heat sealing is performed from above the ultrasonic sealing area and further over a width wider than the width of the sealing area using a means other than ultrasonic waves such as a heating plate, heating roll, or dielectric heating, and the ultrasonic sealing area and its surroundings are thermally bonded again. By doing so, the decreased strength can be improved again and excellent sealing can be achieved. In addition, since the contents that adhered to the seal are removed from the sealed area and its surroundings during the sealing process using the ultrasonic wave described above,
Subsequent heat sealing by means other than ultrasonic waves can also be carried out without any problem.

実施例で更に詳しく説明する。This will be explained in more detail in Examples.

第１図は、ポリエステルフィルム、ナイロンフィルム、
必要に応じアルミニウム箔等を複数層積層し、その最内
面にポリエチレン、ポリプロピレン、ポリ塩化ビニル等
の熱接着性樹脂層を設けた包装材を用いてつくったガゼ
ツト袋に、コーヒー飲料、豆乳、ジュース等の液体内容
物を充填し、密封封緘した状態を示す斜視図である。Figure 1 shows polyester film, nylon film,
Coffee drinks, soy milk, and juices are placed in gusset bags made of packaging material made of multiple layers of aluminum foil, etc., and a layer of heat-adhesive resin such as polyethylene, polypropylene, or polyvinyl chloride on the innermost surface. FIG. 2 is a perspective view showing a state in which the container is filled with liquid contents such as the following and sealed.

ここにおいて、ガゼツト袋ｌに内容物を充填するときに
は、封緘部にも内容物が付着する。そこで先ず超音波に
より封緘部２を、例えば３〜１０ｍｍの幅で封緘する。Here, when the contents are filled into the gusset bag 1, the contents also adhere to the sealing portion. Therefore, first, the sealed portion 2 is sealed with a width of, for example, 3 to 10 mm using ultrasonic waves.

超音波が照射された部分及びその周辺は、そこに付着し
ていた内容物が超音波振動により排除され清浄な状態と
なり、したがって最内層の熱接着性樹脂同士の熱融着が
円滑に行なえる。またガゼツト袋の４枚の包装材料が重
なった部分と２枚の包装材料が重なった部分との段差の
箇所も確実に封緘することが出来る。The area where the ultrasonic waves were irradiated and its surroundings become clean as the contents that had adhered there are removed by the ultrasonic vibrations, and therefore the innermost layer of thermal adhesive resin can be thermally bonded smoothly. . Furthermore, it is possible to reliably seal the difference in level between the overlapped part of the four packaging materials and the overlapped part of the two packaging materials of the gazette bag.

次いで上記の超音波封緘部の上から、熱板加熱や誘電加
熱によって再び熱封緘する。この場合の封緘は、超音波
熱封緘部の幅より広幅に例えば８〜１５ｍｍの幅で行な
う。これによって、超音波封緘部の周辺の熱接着性樹脂
が熱融着するとともに、超音波封緘部の熱接着性樹脂も
再融着するので封緘部が強固になる。Next, heat sealing is performed again from above the ultrasonic sealing part by hot plate heating or dielectric heating. In this case, the sealing is performed with a width wider than the width of the ultrasonic heat sealing part, for example, 8 to 15 mm. As a result, the heat-adhesive resin around the ultrasonic sealing part is thermally fused, and the heat-adhesive resin in the ultrasonic sealing part is also fused again, so that the sealing part becomes strong.

（発明の効果） 本発明では、最内層に熱接着性樹脂層を有する包装袋に
内容物を充填した後、先ず、超音波により開口部を封緘
するので、封緘部分に内容物が付着していても、これが
超音波振動により排除されて封緘が行なわれるため、確
実な封緘が行なえる。(Effects of the Invention) In the present invention, after filling a packaging bag having a heat-adhesive resin layer as the innermost layer with contents, the opening is first sealed using ultrasonic waves, so that the contents do not adhere to the sealed portion. However, since this is eliminated by ultrasonic vibration and sealing is performed, reliable sealing can be performed.

そして、次いで、超音波封緘部の上から、超音波封緘部
の幅より広幅に熱封緘するので、超音波封緘部及びその
周辺が熱融着するため、封緘部を強固にすることが出来
る。Then, heat sealing is performed from above the ultrasonic sealing part to a width wider than the width of the ultrasonic sealing part, so the ultrasonic sealing part and its surroundings are thermally fused, so that the sealing part can be strengthened.

したがって、本発明によれば、強固で、漏洩が生じるこ
とのない確実な密封封緘を行なうことが出来る。Therefore, according to the present invention, it is possible to perform a strong and reliable sealing without leakage.

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

第１図は本発明方法で封緘した包装袋の斜視図７− である。 ｌ・・・・・・包装袋 ２・・・・・・封緘部 Figure 1 is a perspective view of a packaging bag sealed by the method of the present invention. It is. l... Packaging bag 2...Sealing section

Claims (1)

【特許請求の範囲】[Claims] １、最内層に熱接着性樹脂層を有する包装袋に内容物を
充填した後、その開口部を密封封緘する方法において、
該開口部を超音波により封緘した後、更に該超音波封緘
部の上から、該封緘部より広幅の熱封緘を行なうことを
特徴とする包装袋の封緘方法。1. A method in which a packaging bag having a thermoadhesive resin layer as the innermost layer is filled with contents and then the opening is hermetically sealed,
A method for sealing a packaging bag, which comprises sealing the opening with ultrasonic waves, and then heat sealing a wider area than the ultrasonic sealing area.
JP02002509A 1990-01-11 1990-01-11 Packaging bag sealing method Expired - Fee Related JP3079185B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP02002509A JP3079185B2 (en) 1990-01-11 1990-01-11 Packaging bag sealing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02002509A JP3079185B2 (en) 1990-01-11 1990-01-11 Packaging bag sealing method

Publications (2)

Publication Number Publication Date
JPH03212327A true JPH03212327A (en) 1991-09-17
JP3079185B2 JP3079185B2 (en) 2000-08-21

Family

ID=11531343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP02002509A Expired - Fee Related JP3079185B2 (en) 1990-01-11 1990-01-11 Packaging bag sealing method

Country Status (1)

Country Link
JP (1) JP3079185B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0635106U (en) * 1992-10-13 1994-05-10 東洋自動機株式会社 Bad bag detection device for packaging machine
US6881287B2 (en) 2002-02-13 2005-04-19 Toyo Jidoki Co., Ltd. Packaging bag sealing method and a filled and sealed packaging bag
FR2941923A1 (en) * 2009-02-12 2010-08-13 Coopex Apifruit PROCESS FOR PACKAGING PERISHABLE FOODS SUCH AS FRUITS, DEVICE FOR CARRYING OUT SAID METHODS AND PACKAGING THUS OBTAINED
US20170008675A1 (en) * 2014-01-24 2017-01-12 Hosokawa Yoko Co., Ltd. Gusset bag, method for manufacturing gusset bag, and method for joining laminated members
JP2018030589A (en) * 2016-08-22 2018-03-01 凸版印刷株式会社 Packaging container and manufacturing method thereof
DE102018214127A1 (en) * 2018-08-21 2020-02-27 Huhtamaki Flexible Packaging Germany Gmbh & Co. Kg Foil packaging with a combination heat-sealing zone formed by different sealing processes and sealing tool therefor
CN111403814A (en) * 2020-03-26 2020-07-10 深圳市量能科技有限公司 Sealing method and device for polymer lithium ion battery

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0635106U (en) * 1992-10-13 1994-05-10 東洋自動機株式会社 Bad bag detection device for packaging machine
US6881287B2 (en) 2002-02-13 2005-04-19 Toyo Jidoki Co., Ltd. Packaging bag sealing method and a filled and sealed packaging bag
EP1338511A3 (en) * 2002-02-13 2006-10-25 Toyo Jidoki Co., Ltd. Packaging bag sealing method and a filled and sealed packaging bag
FR2941923A1 (en) * 2009-02-12 2010-08-13 Coopex Apifruit PROCESS FOR PACKAGING PERISHABLE FOODS SUCH AS FRUITS, DEVICE FOR CARRYING OUT SAID METHODS AND PACKAGING THUS OBTAINED
EP2218644A1 (en) * 2009-02-12 2010-08-18 Coopex Apifruit Method for packaging fruit in a juice, device for implementing same and packaging thus obtained
US20170008675A1 (en) * 2014-01-24 2017-01-12 Hosokawa Yoko Co., Ltd. Gusset bag, method for manufacturing gusset bag, and method for joining laminated members
JP2018030589A (en) * 2016-08-22 2018-03-01 凸版印刷株式会社 Packaging container and manufacturing method thereof
DE102018214127A1 (en) * 2018-08-21 2020-02-27 Huhtamaki Flexible Packaging Germany Gmbh & Co. Kg Foil packaging with a combination heat-sealing zone formed by different sealing processes and sealing tool therefor
CN111403814A (en) * 2020-03-26 2020-07-10 深圳市量能科技有限公司 Sealing method and device for polymer lithium ion battery

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