JP3079185B2 - Packaging bag sealing method - Google Patents

Packaging bag sealing method

Info

Publication number
JP3079185B2
JP3079185B2 JP02002509A JP250990A JP3079185B2 JP 3079185 B2 JP3079185 B2 JP 3079185B2 JP 02002509 A JP02002509 A JP 02002509A JP 250990 A JP250990 A JP 250990A JP 3079185 B2 JP3079185 B2 JP 3079185B2
Authority
JP
Japan
Prior art keywords
sealing
ultrasonic
packaging bag
heat
sealed
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 - Fee Related
Application number
JP02002509A
Other languages
Japanese (ja)
Other versions
JPH03212327A (en
Inventor
誠 依知川
徳雄 小菅
明雄 小幡
昌俊 佐伯
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.)
Fujimori Kogyo Co Ltd
Original Assignee
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 Fujimori Kogyo Co Ltd filed Critical Fujimori Kogyo Co Ltd
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

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。Description: TECHNICAL FIELD The present invention relates to a method for sealing a packaging bag. More specifically, the present invention relates to a method for securely closing an opening even after the contents are attached to a sealed portion inside the opening of the opening of the packing bag after the contents are filled in the packing bag.

（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−ル、誘導加熱シ−ル、インパルスシ−
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。(Problems to be Solved by the Prior Art and the Invention) When the contents are filled into a packaging bag having a heat-adhesive resin layer as the innermost layer, and the opening is hermetically sealed, generally, a seal using a hot plate is used. Seal, induction heating seal, impulse seal
A heat sealing method using a tool or the like is employed. However, in these heat sealing methods, if the content adheres to the sealed portion, the heat sealing becomes incomplete and the content may leak from the opening during storage.

また包装袋が襞の付いたガゼット袋の場合には、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。When the wrapping bag is a gusseted bag with folds, the folds are the portion where the four wrapping materials are overlapped and the other portions are two. Since there is a step at the boundary of, there is a difference in thermocompression bonding at the time of sealing, and a void (void) is easily generated, and contents may leak from this portion.

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。For this reason, various methods have been proposed for the purpose of preventing the disadvantages of these heat sealing methods. However, no suitable method has been developed for an automatic filling method in which the operations of bag making, filling and sealing are performed by 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−ルには好ましい封緘方
法である長所をもつ。Therefore, as one method for solving the above-mentioned disadvantage, a sealing method using ultrasonic waves has been attempted. In this sealing method using ultrasonic waves, the contents adhering to the inner surface of the sealing portion are removed from the sealing portion by ultrasonic vibration, so that the sealing portion is cleaned and the above-mentioned trouble is eliminated. A so-called submerged seal has an advantage that a so-called submerged seal is a preferable sealing method, in which the contents adhere to or are sealed with the contents.

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, since the sealing method using ultrasonic waves is performed at a high pressure during sealing, the rigidity is relatively large,
Moreover, it is suitable for sealing a thick packaging material, but it is hard to say that it is a suitable method for a soft packaging material laminated with a plastic film or the like.

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
波に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、所謂付け根切れ現象を発生
しやすくなる欠点がある。That is, even in the case of the above soft packaging material, it is possible to seal by applying ultrasonic waves. However, when ultrasonic sealing is performed, not only the inner surface of the heat-adhesive resin layer is bonded, but also A base material for maintaining strength and the like as a packaging material,
For example, polyester, nylon and other surface materials are melted by the heat generated by ultrasonic waves, lowering the physical strength of the sealed part and simultaneously melting the edges of the sealed part to lower the strength of the packaging bag itself. However, there is a disadvantage that a so-called root breakage phenomenon easily occurs.

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。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for sealing a packaging bag, which makes use of the above-mentioned advantages of the method for sealing by ultrasonic waves and eliminates the disadvantage that the strength of the sealed portion and its edge is reduced.

（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 problems, the present inventor performs another heat sealing process on the sealed portion and the edge thereof whose strength has been reduced by the sealing method using ultrasonic waves. By
The inventors have found that the strength can be improved, and completed the present invention.

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、超音波封緘以外の手段に
よって、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, after filling the contents into a packaging bag having a heat-adhesive resin layer in the innermost layer, in a method of hermetically sealing the opening, after sealing the opening by ultrasonic,
Further, the present invention provides a method for sealing a packaging bag, wherein heat sealing is performed from above the ultrasonic sealing portion by means other than ultrasonic sealing in a wider area than the sealing portion.

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。また、ガゼッ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。According to the present invention, the contents are filled in a packaging bag having a heat-adhesive resin layer as the innermost layer, and then, when the opening is hermetically sealed, first, the sealing is performed by an ultrasonic sealing method. Even if the content is attached to the portion, the attached content is removed from the sealing portion or its periphery by the vibration of the ultrasonic wave, so that the sealing itself can be performed well. In addition, a foldable packaging bag such as a gusset bag can be hermetically sealed without generating a gap.

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−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 the ultrasonic sealing, particularly when the packaging bag is made of a soft packaging material, the base material itself may be melted or the strength of the sealed portion or the edge thereof may be reduced. From the top of the ultrasonic sealing section, heat sealing is performed by means other than ultrasonic waves such as a heating plate, a heating roll, and dielectric heating to a width wider than the width of the sealing section. By heat bonding, the reduced strength can be improved again, and excellent hermetic sealing can be performed. Further, at the time of the above-described ultrasonic sealing, the adhered contents are removed from the sealing portion and its periphery, so that subsequent thermal sealing by means other than the ultrasonic can be performed without any trouble.

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

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
最内面にポリエステル、ポリプロピレン、ポリ塩化ビニ
ル等の熱接着性材料層を設けた包装材を用いてつくった
ガゼット袋に、コ−ヒ−飲料、豆乳、ジュ−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。FIG. 1 shows a case where a plurality of layers of a polyester film, a nylon film, an aluminum foil and the like are laminated as required, and the innermost surface thereof is provided with a packaging material provided with a heat-adhesive material layer of polyester, polypropylene, polyvinyl chloride or the like. FIG. 4 is a perspective view showing a state in which a liquid content such as coffee drink, soy milk, and juice is filled in a gusset bag, which is then hermetically sealed.

ここにおいて、ガゼット袋１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。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。またガゼット袋の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。Here, when filling the gusset bag 1 with the contents, the contents also adhere to the sealing portion. Therefore, the sealing part 2 is first sealed with a width of, for example, 3 to 10 mm by ultrasonic waves. The portion irradiated with the ultrasonic wave and its surroundings are in a clean state because the contents adhering thereto are removed by the ultrasonic vibration, so that the innermost layer of the thermo-adhesive resin can be thermally fused smoothly. . In addition, the stepped portion between the portion where the four packaging materials overlap in the gusset bag and the portion where the two packaging materials overlap can also be reliably sealed.

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, the above-mentioned ultrasonic sealing portion is heat-sealed again by hot plate heating or dielectric heating. The sealing in this case is performed with a width of, for example, 8 to 15 mm wider than the width of the ultrasonic heat sealing portion. As a result, the thermo-adhesive resin around the ultrasonic sealing portion is thermally fused, and the thermo-adhesive resin in the ultrasonic sealing portion is also re-fused, so that the sealing portion 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。そして、次いで、超音波封緘部
の上から、超音波封緘以外の方法で、超音波封緘部の幅
より広幅に熱封緘するため、超音波封緘部及びその周辺
が熱融着するので、超音波封緘によって所謂付け根切れ
現象など強度低下した封緘部を再び強化することが出来
る。(Effects of the Invention) In the present invention, after filling the contents into a packaging bag having a heat-adhesive resin layer as the innermost layer, first, the opening is sealed by ultrasonic waves, so that the contents adhere to the sealed portion. However, since this is eliminated by ultrasonic vibration and sealing is performed,
Secure sealing can be performed. Then, from the top of the ultrasonic sealing portion, in order to thermally seal the ultrasonic sealing portion wider than the width of the ultrasonic sealing portion by a method other than the ultrasonic sealing portion, the ultrasonic sealing portion and the periphery thereof are heat-sealed. It is possible to reinforce the sealed portion whose strength has been reduced due to the so-called root breaking phenomenon due to the sealing.

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 firm and secure sealing without leakage.

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

第１図は本発明方法で封緘した包装袋の斜視図である。 １……包装袋、２……封緘部 FIG. 1 is a perspective view of a packaging bag sealed by the method of the present invention. 1 ... packaging bag, 2 ... sealing section

───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐伯 昌俊 千葉県柏市明原１―11―５ (56)参考文献 特開 昭62−235003（ＪＰ，Ａ) 特開 昭61−115823（ＪＰ，Ａ) 特開 平２−72024（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Masatoshi Saeki 1-1-5, Akihara, Kashiwa-shi, Chiba (56) References JP-A-62-235003 (JP, A) JP-A-61-115823 (JP, A ) JP-A-2-72024 (JP, A)

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項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、超音波封緘以外の手段によって、
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 of filling the contents into a packaging bag having a heat-adhesive resin layer as an innermost layer, and sealing the opening of the packaging bag by ultrasonically closing the opening and then further removing the ultrasonic wave. From above the sealing part, by means other than ultrasonic sealing,
A method for sealing a packaging bag, wherein heat sealing is performed in a wider area than the sealing portion.
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 JPH03212327A (en) 1991-09-17
JP3079185B2 true 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)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2583590Y2 (en) * 1992-10-13 1998-10-22 東洋自動機株式会社 Detecting device for defective bag of packaging machine
JP3926166B2 (en) 2002-02-13 2007-06-06 東洋自動機株式会社 Packaging bag sealing method and filled and sealed packaging bag
FR2941923B1 (en) * 2009-02-12 2012-03-16 Coopex Apifruit PROCESS FOR PACKAGING PERISHABLE FOODS SUCH AS FRUITS, DEVICE FOR CARRYING OUT SAID METHODS AND PACKAGING THUS OBTAINED
JP6537979B2 (en) * 2014-01-24 2019-07-03 株式会社細川洋行 Gusset bag, method of manufacturing gusset bag, and method of joining laminates
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

Also Published As

Publication number Publication date
JPH03212327A (en) 1991-09-17

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