JPH08324520A - Method for sealing package bag - Google Patents

Method for sealing package bag

Info

Publication number
JPH08324520A
JPH08324520A JP7131526A JP13152695A JPH08324520A JP H08324520 A JPH08324520 A JP H08324520A JP 7131526 A JP7131526 A JP 7131526A JP 13152695 A JP13152695 A JP 13152695A JP H08324520 A JPH08324520 A JP H08324520A
Authority
JP
Japan
Prior art keywords
heat
bag
sealing
packaging material
packaging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7131526A
Other languages
Japanese (ja)
Inventor
Akio Koizumi
明生 小泉
Motoo Shikada
元生 鹿田
Tsugio Kaneoka
継雄 兼岡
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 JP7131526A priority Critical patent/JPH08324520A/en
Publication of JPH08324520A publication Critical patent/JPH08324520A/en
Pending 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
    • 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
    • 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
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C65/18—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
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • 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
    • B29K2069/00—Use of PC, i.e. polycarbonates 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
    • 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
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B29K2305/02—Aluminium
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases
    • B29K2995/0067—Permeability to gases non-permeable
    • 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
    • B29L2009/00—Layered products
    • B29L2009/003—Layered products comprising a metal layer
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding

Landscapes

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

Abstract

PURPOSE: To rigidly seal a bag opening to reliably prevent external contamination or the like by filling contents into a back-lined bag or a gusset bag with an innermost layer formed of a heat-bonded packaging material, then heat-fusing the bag opening, and performing ultrasonic sealing on the heat-fused part CONSTITUTION: A laminate film wherein at least one of faces of a packaging material is a heat-bonded layer so that an innermost layer of a packaging bag 1 has heat-bonding ability is used as the packaging material. In addition a laminate film with an Al foil interposed to keep vapor-proofness, a packaging material for example comprising the Al foil as an intermediate layer, one of faces of a film such as polyester and nylon and the other face of a heat-bonded film such as polyethylene, polypropylene and polycarbonate is preferably used. At the time of sealing, after an opening of a bag filled with contents such as a liquid or viscous substance or powder is fused 2, ultrasonic sealing 3 is performed to re-fuse the heat-bonding resin at the fused part to make a sealed part rigid.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は例えば、醤油、ドレッシ
ング等の液体又は粘稠体或いは薬品などの粉体の調味品
を内容物とする包装袋の開口部を封緘する包装袋の密封
方法である。BACKGROUND OF THE INVENTION The present invention relates to a method of sealing a packaging bag, for example, which seals the opening of a packaging bag containing a seasoning of liquid or viscous material such as soy sauce, dressing, etc., or powder such as chemicals. is there.

【０００２】[0002]

【従来の技術】従来より例えば、醤油、ドレッシング等
の調味品は、内面が熱接着性を有する包装材料で構成さ
れた背貼袋又はガセット袋に充填し、開口部をヒートシ
ール方法によって封緘していた。しかし、背貼袋はその
背貼りの折り返し部分が、またガセット袋は、ガセット
の襞の部分において４枚の包装材料が重なり、他の部分
は２枚であるため、ヒートシールを行うと２枚部分と４
枚部分の段差のある部分は空隙（スルーホール）が生じ
やすく、そのためこの部分より内容物が漏洩したり、或
いは外部より菌が侵入して内容物を汚染させる等欠点が
あった。2. Description of the Related Art Conventionally, for example, seasonings such as soy sauce and dressing are filled in a back-sticking bag or gusset bag whose inner surface is made of a packaging material having a heat adhesive property, and the opening is sealed by a heat sealing method. Was there. However, the back-attached bag has a folded back portion, and the gusset bag has four sheets of wrapping material at the gusset folds, and the other portion has two sheets. Part and 4
Voids (through holes) are likely to occur in the stepped portion of the sheet portion, so that there are drawbacks such as leakage of the contents from this portion or contamination of the contents by invasion of bacteria from the outside.

【０００３】この点を改良するため、このような段差の
ある包装袋の熱封緘方法として、本発明者は先に開口部
をまず超音波によって封緘し、その後この封緘部分の上
より広幅の熱シールを行う方法を開発し（特開平３−２
１２３２７号参照）、漏洩等に関する問題点を解決し一
応の目的は達成できた。しかし、調味料を包装袋に充
填、封緘するに当たっては、調味料の酸化を防止するた
め袋内に空間部分が存在しないようにすることが好まし
く、そのため、調味料を充填した液体部分を噛み込んで
封緘する所謂液中シール方法を採用することが好まし
い。ところがこのような調味料の封緘方法として、上述
の本発明者が先に開発した方法を適用しようとすると開
口部には液体が存在するため熱シールを行うことができ
ず、また、先に超音波シールを行った後熱封緘を行う
と、超音波シールの際にシーラント層が超音波の激しい
振動によって破砕して微粉末が発生し、袋内に飛散して
内容物を汚染する結果となった。In order to improve this point, as a method of heat-sealing a packaging bag having such a step, the present inventor first seals the opening with ultrasonic waves, and then heats wider than the sealed portion. A method for sealing was developed (Japanese Patent Laid-Open No. 3-2
(Refer to No. 12327), the problems related to leakage etc. were solved and the temporary purpose was achieved. However, when filling and sealing the seasoning in the packaging bag, it is preferable that there is no space in the bag to prevent oxidation of the seasoning, and therefore, the liquid portion filled with the seasoning should be bitten in. It is preferable to employ a so-called submerged sealing method in which the sealing is carried out by. However, as a method for sealing such seasonings, when the method developed by the present inventor described above is applied, heat sealing cannot be performed because the liquid is present in the opening portion, and the super-sealing When heat sealing is performed after sonic sealing, the sealant layer is crushed by violent ultrasonic vibration during ultrasonic sealing to generate fine powder, which results in scattering into the bag and contaminating the contents. It was

【０００４】[0004]

【発明が解決しようとする課題】本発明者は背貼袋又は
ガセット袋のような段差を有する包装袋について、液洩
れのない、しかも内容物に汚染を生じない液中シールに
ついて種々検討した結果、本発明を完成したもので、本
発明の目的はスルーホールを完全になくすことである。DISCLOSURE OF THE INVENTION As a result of various investigations by the present inventor on a packaging bag having a step, such as a backing bag or a gusset bag, a liquid submerged seal that does not leak and does not cause contamination of the contents The present invention has been completed, and an object of the present invention is to eliminate the through hole completely.

【０００５】[0005]

【課題を解決するための手段】本発明の要旨は、最内層
が熱接着性の包装材でもって構成された背貼袋又はガセ
ット袋に液体又は粘稠体或いは粉体を充填した後、該袋
の開口部を熱融着し、しかる後、該熱融着部の上に、更
に超音波封緘を行うことを特徴とする包装袋の密封方法
であり、その際、熱融着の幅より狭い幅で超音波封緘で
行うのである。The gist of the present invention is to fill a back-sticking bag or a gusset bag whose innermost layer is made of a heat-adhesive packaging material with a liquid or a viscous material or powder, and then Heat-sealing the opening of the bag, after that, on the heat-sealing portion, is a method of sealing a packaging bag, further characterized by performing ultrasonic sealing, at that time, the width of the heat-sealing Ultrasonic sealing is used with a narrow width.

【０００６】即ち、本発明は背貼袋又はガセット袋の如
き段差を有する包装袋を液中シール又は液が付着した状
態でシールするに当り、まず、熱シールによって開口部
を融着し、しかる後超音波シールによってスルーホール
をなくして密封し、液洩れを生じないようにしたもので
あって、液中シールにより袋内に空間部分が存在するこ
となく、熱封緘方法による融着後、超音波シールするの
で完全に密封でき液漏れを生じることはない。That is, according to the present invention, when a packaging bag having a step, such as a back-applied bag or a gusset bag, is sealed in a liquid or in a state where the liquid is attached, first, the opening is fused by heat sealing. After the through-hole is sealed by the ultrasonic seal to prevent liquid leakage, the in-liquid seal does not have a space inside the bag, and after fusion by the heat sealing method, Since it is sonic sealed, it can be completely sealed without liquid leakage.

【０００７】以下、本発明を詳細に説明する。本発明で
使用する包装材は包装袋の最内層が熱接着性になるよう
に、包装材の少なくとも一方の面を熱接着層となるよう
な積層フィルムである。そして、防湿性を保つためにＡ
ｌ箔を介在させた積層フィルムは好ましく、例えばＡｌ
箔を中間層とし、一方の面は包装袋としての強度を保持
するためポリエステルフィルム、ナイロンフィルム、ポ
リプロピレンフィルム等を、他方の面は熱接着性を付与
するためにポリエチレン、ポリプロピレン、ポリカーボ
ネート等の熱接着性のフィルムを積層した包装材であっ
て、本発明においてはこれらの包装材を用いて包装袋の
内面が熱接着性フィルム層になるように背貼袋又はガセ
ット袋を形成し、この包装袋に液体または粘稠体或いは
粉体の内容物を充填し密封する。Hereinafter, the present invention will be described in detail. The packaging material used in the present invention is a laminated film in which at least one surface of the packaging material has a thermal adhesive layer so that the innermost layer of the packaging bag has thermal adhesiveness. And in order to keep moisture resistance A
A laminated film with an intervening l foil is preferred, for example Al
A foil is used as an intermediate layer, and one surface is made of polyester film, nylon film, polypropylene film or the like to maintain the strength as a packaging bag, and the other surface is made of heat such as polyethylene, polypropylene or polycarbonate to provide thermal adhesion. A packaging material in which an adhesive film is laminated, and in the present invention, a backing bag or a gusset bag is formed such that the inner surface of the packaging bag is a heat-adhesive film layer using these packaging materials, and this packaging is used. Fill the bag with liquid or viscous or powder contents and seal.

【０００８】密封に際しては袋内にエアースペースが存
在しないように熱封緘を行う。そのため袋内に液体また
は粘稠体或いは粉体の内容物を充填し、内容物が噛み込
んだ状態で該袋の開口部を融着する所謂液中シールを行
う。熱融着方法としては熱板加熱や誘電加熱等の通常の
熱封緘に使用する手段で行う。熱封緘の封緘幅は、次ぎ
の工程で行う超音波シールのシール幅より大きな幅であ
って、例えば８ｍｍ〜１５ｍｍ程度の幅で行なうことが
好ましい。この熱封緘では４枚に折り込まれている部分
は完全に融着されず、開口部を融着したこととなる。At the time of sealing, heat sealing is performed so that there is no air space in the bag. Therefore, a so-called submerged seal is performed in which the contents of liquid, viscous material or powder are filled in the bag and the opening of the bag is fused when the contents are bitten. As the heat-sealing method, a means used for ordinary heat-sealing such as hot plate heating or dielectric heating is used. The sealing width of the heat sealing is larger than the sealing width of the ultrasonic sealing performed in the next step, and is preferably about 8 mm to 15 mm, for example. In this heat sealing, the portion folded into four sheets is not completely fused, but the opening is fused.

【０００９】次いで、この熱融着部の上から超音波封緘
を行い、融着部の熱接着性樹脂を再融着させて融着部を
強固にすると共に背貼袋の背貼りの折り返し部分やガセ
ット袋の襞の部分等の包装材料が４枚重なっている部分
のスルーホールを完全に潰し密着を完全にし、これによ
って包装材料の４枚重なり部分よりの液漏れを完全に防
止し、外部よりの汚染を防止するように開口部を密封す
ることができる。超音波封緘は封緘時にかなりの高圧で
圧着するが、本発明においては熱接着により融着されて
いるので超音波封緘に耐えることができ、従って、シー
ラント層が破砕することはない。この封緘部の幅として
は、熱融着部の幅より小さく、例えば３ｍｍ〜６ｍｍ程
度である。本発明にかかる密封状態を図１について説明
する。図１（ａ）は背貼包装袋の正面の斜視図であり、
（ｂ）は背貼包装袋の裏面（背貼がある面）の斜視図で
ある。図１において１は包装袋、２は熱融着部、３は超
音波封緘部で４は背貼部を表わす。Next, ultrasonic sealing is performed from above the heat-sealing portion to re-heat the heat-adhesive resin in the heat-sealing portion to reinforce the heat-sealing portion, and the back portion of the back-sealing bag is folded back. Completely crush the through holes in the area where four packaging materials such as the folds of a gusset bag overlap and completely adhere, thereby completely preventing liquid leakage from the area where the packaging materials overlap four. The opening can be sealed to prevent further contamination. The ultrasonic sealing is pressure-bonded at a considerably high pressure at the time of sealing, but in the present invention, since it is fused by thermal bonding, it can withstand ultrasonic sealing, and therefore the sealant layer does not fracture. The width of the sealing portion is smaller than the width of the heat-sealing portion, and is, for example, about 3 mm to 6 mm. The sealed state according to the present invention will be described with reference to FIG. FIG. 1 (a) is a front perspective view of the back-applied packaging bag,
(B) is a perspective view of the back surface (the surface on which the back is attached) of the back-attached packaging bag. In FIG. 1, 1 is a packaging bag, 2 is a heat-sealing part, 3 is an ultrasonic sealing part, and 4 is a back-sticking part.

【００１０】[0010]

【実施例及び比較例】以下、実施例を以って本発明を具
体的に説明する。 実施例１ 厚さ７μｍのアルミニウム箔を中間層とし、一方の面に
厚さ１２μｍのポリエステルフィルム（Ｅ）を、他方の
面に厚さ１２μｍのポリエステルフィルム（Ｅ）と厚さ
５０μｍのポリエチレンフィルム（ＰＥ）を積層したＥ
／Ａｌ／Ｅ／ＰＥの４層積層フルムを包装材として使用
し、袋の内面がＰＥになるようにガゼット包装袋を形成
した。袋の寸法としては幅２５ｍｍ，長さ１３０ｍｍで
あった。この袋内に約１０ｃｃのソースを充填し、１３
５℃で液中シールによって封緘幅が約１０ｍｍ程度にな
るように熱板によって熱融着した。次いで、この熱融着
した上から超音波シーラーを用い、０．３秒、封緘幅が
約５ｍｍ程度の超音波封緘を行った。得られた包装袋の
開口部は完全に密封され何ら液漏れや内容物の汚染は生
じなかった。EXAMPLES AND COMPARATIVE EXAMPLES The present invention will be specifically described below with reference to Examples. Example 1 An aluminum foil having a thickness of 7 μm was used as an intermediate layer, a polyester film (E) having a thickness of 12 μm was formed on one surface, and a polyester film (E) having a thickness of 12 μm and a polyethylene film having a thickness of 50 μm were formed on the other surface ( E) laminated with PE)
A 4-layer laminated flume of / Al / E / PE was used as a packaging material, and a gusset packaging bag was formed so that the inner surface of the bag was PE. The bag had a width of 25 mm and a length of 130 mm. Fill this bag with about 10 cc of sauce,
It was heat-sealed by a hot plate at 5 ° C. by a liquid seal so that the sealing width was about 10 mm. Then, ultrasonic sealing was performed for 0.3 seconds with a sealing width of about 5 mm using an ultrasonic sealer from the above heat-sealing. The opening of the obtained packaging bag was completely sealed and no liquid leakage or contamination of the contents occurred.

【００１１】[0011]

【発明の効果】以上述べたように、本発明は積層フィル
ムよりなる包装袋の開口部を封緘するに当り、先ず、熱
封緘により融着させ、しかる後、その上より超音波封緘
により封緘したことにより背貼袋又はガセット袋の段差
のある袋の開口部を強固に密着でき、スルーホールを完
全に潰せるので外部からの菌の侵入等による内容物の汚
染を防止することができ、しかも液中シールが可能であ
るので袋内に空間部を存在させることがなく密封でき、
従って内容物を長期間保存できる等の効果を奏する。As described above, according to the present invention, when the opening of the packaging bag made of the laminated film is sealed, first, it is fused by heat sealing, and thereafter, it is sealed by ultrasonic sealing. By doing so, the opening of the back bag or the gusset bag with steps can be firmly adhered and the through hole can be completely crushed, so that it is possible to prevent the contamination of the contents due to the invasion of bacteria from the outside, etc. Since it is possible to seal inside, it can be sealed without creating a space inside the bag,
Therefore, the contents can be stored for a long period of time.

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

【図１】背貼り包装袋の斜視図で（ａ）はその表面、
（ｂ）はその裏面（背貼部のある面）を示す。FIG. 1 is a perspective view of a back-attached packaging bag, (a) shows its surface,
(B) shows the back surface (the surface with the spine sticking portion).

【符号の説明】[Explanation of symbols]

１ 包装袋 ２ 熱融着部 ３ 超音波封緘部
４ 背貼部1 packaging bag 2 heat fusion part 3 ultrasonic sealing part 4 back attachment part

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 最内層が熱接着性の包装材でもって構成
された背貼袋又はガセット袋に液体又は粘稠体或いは粉
体を充填した後、該袋の開口部を熱融着し、しかる後、
該熱融着部の上に、更に超音波封緘を行うことを特徴と
する包装袋の密封方法。1. A back-sticking bag or a gusset bag whose innermost layer is made of a heat-adhesive packaging material is filled with a liquid or a viscous material or powder, and then the opening of the bag is heat-sealed, After that,
A method for sealing a packaging bag, further comprising performing ultrasonic sealing on the heat-sealed portion. 【請求項２】 熱融着部の融着幅が超音波封緘の封緘幅
より大きい請求項１記載の包装袋の密封方法。2. The method for sealing a packaging bag according to claim 1, wherein the fusion bonding width of the heat fusion bonding portion is larger than the sealing width of the ultrasonic sealing.
JP7131526A 1995-05-30 1995-05-30 Method for sealing package bag Pending JPH08324520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7131526A JPH08324520A (en) 1995-05-30 1995-05-30 Method for sealing package bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7131526A JPH08324520A (en) 1995-05-30 1995-05-30 Method for sealing package bag

Publications (1)

Publication Number Publication Date
JPH08324520A true JPH08324520A (en) 1996-12-10

Family

ID=15060134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7131526A Pending JPH08324520A (en) 1995-05-30 1995-05-30 Method for sealing package bag

Country Status (1)

Country Link
JP (1) JPH08324520A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002526283A (en) * 1998-10-06 2002-08-20 マスターフーズ Ultrasonic welding equipment
JP2003237739A (en) * 2002-02-13 2003-08-27 Toyo Jidoki Co Ltd Sealing method for packaging bag and filled and sealed packaging bag
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
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002526283A (en) * 1998-10-06 2002-08-20 マスターフーズ Ultrasonic welding equipment
JP2003237739A (en) * 2002-02-13 2003-08-27 Toyo Jidoki Co Ltd Sealing method for packaging bag and 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
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
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

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