JP4171950B2 - Fusing method for heat fusing a composite film of polyurethane film and polyethylene film to a material to be fused and its heat fusing machine - Google Patents

Fusing method for heat fusing a composite film of polyurethane film and polyethylene film to a material to be fused and its heat fusing machine Download PDF

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JP4171950B2
JP4171950B2 JP28333199A JP28333199A JP4171950B2 JP 4171950 B2 JP4171950 B2 JP 4171950B2 JP 28333199 A JP28333199 A JP 28333199A JP 28333199 A JP28333199 A JP 28333199A JP 4171950 B2 JP4171950 B2 JP 4171950B2
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film
plate
press
heat
frame
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JP2001062917A (en
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武 齋藤
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株式会社ユニテム
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Priority to PCT/JP2001/000441 priority patent/WO2002058914A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C65/76—Making non-permanent or releasable 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
    • 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
    • B29C66/70—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
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/07—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using resilient suspension means
    • B65D81/075—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using resilient suspension means the contents being located between two membranes stretched between opposed sides of the package
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5092—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the tape handling mechanisms, e.g. using vacuum
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes 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
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • B29K2711/123—Coated
    • 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
    • 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
    • B29L2031/7164—Blister packages

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Buffer Packaging (AREA)

Description

【０００１】
［産業上の利用分野］
本発明は、強靭性とスパンデックス性に富むが作業性のよくないポリウレタンフイルムと、剥離性のよいポリエチレンフイルムを積層して構成した複合フイルムを、融着後にポリウレタンフイルムを残してポリエチレンフイルムだけを簡単に剥離させる事ができるように、接着剤を使用せずに、製品梱包用緩衝材として使用する被融着板材に熱融着する融着方法及び熱融着機に関する。
【０００２】
［従来の技術］
従来、一般に行われている樹脂フイルムを他の材質の板材に熱融着する融着方法及び熱融着機は、加熱されて昇降する上部のプレス熱板とプレス台の間に、融着する樹脂フイルムを上側にし、被融着板材を下側にして重ね合わせて配置し、プレス熱板をプレス台に押し下げ、被融着板材に樹脂フイルムを熱融着する融着方法及び熱融着機であった。又、被融着板材に融着する使用樹脂フイルムは単層であり、２種の樹脂フイルムを積層した状態の複合フイルムを使用し、熱融着後の製品の使用時において、１種の樹脂フイルムだけを簡単に剥離できるように融着する技術は無かった。
【０００３】
従って、ポリウレタンフイルムとポリエチレンフイルムを積層した複合フイルムを使用し、接着剤を使用せずに、紙材、樹脂材等で成る被融着板材に熱融着し、かつ、熱融着後に被融着板材を製品梱包用緩衝材として使用する際、ポリエチレンフイルムを簡単に剥離して緩衝力に富むポリウレタンフイルムだけを被融着板材に残すせるように熱融着する融着方法及び熱融着機は未開発である。
【０００４】
［発明が解決しようとする課題］
本発明は、従来未開発の、ポリウレタンフイルムとポチエチレンフイルムを積層して成る複合フイルムを、紙板材、樹脂板材に接着剤を使用せすに熱融着するする事を課題とする融着方法及びその熱融着機である。即ち、２種の樹脂フイルムを積層し、一面をポリウレタンフイルム、他面をポリエチレンフイルムで構成した複合フイルムを、ダンボールシートや厚紙等の紙板材、又は樹脂板材に熱融着し、かつ、融着後にポリエチレンフイルムを剥離させ、ポリウレタンフイルムだけを被融着板材に残す事ができるように熱融着するものである。
【０００５】
熱融着したその被融着板材は、折曲、屈曲などして立体的に組立て、ポリエチレンフイルムを剥離して除去し、視装箱や包装容器等に収納し、ポリウレタンフイルムの特性を活用した製品梱包用の緩衝支持材しすで利用するものである。
【０００６】
［課題を解決するための手段］
本発明は、被融着板材に熱融着する樹脂フイルムを、強靭性とスバンデックス性に富むポリウレタンフイルムと離形しやすいポリエチレンフイルムの複合フイルムに特定し、この複合フイルムは、融着後に梱包支持材として使用する際、ポリウレタンフイルムを残してポリエチレンフイルムだけが簡単に剥離できるように、紙材や樹脂材で成る被融着板材に熱融着する融着方法及び熱融着機である。
【０００７】
従来、一般に行われている熱融着における上下配置関係は、上から、加熱したプレス熱板、樹脂フイルム、被融着板材、プレス台の順であるが、本発明においては、上から、不加熱のプレス定板、被融着板材、複合フイルム、枠状熱板の順であり、一般の重ね方とは逆であり、従来の熱プレス法による融着方法及びその熱融着機とは全く相違するものである。特に、融着時の複合フイルムは、ポリウレタンフイルムを被融着板材に接触する上面側とし、ポリエチレンフイルムを枠状熱板に接触する下面側にする事と、ポリウレタンフイルムとポリエチレンフイルムの長短両特性を相補い、相乗的に活用する事と、融着後においてポリウレタンフイルムだけを被融着板材に残し、ポリエチレンフイルムが簡単に剥離できるように熱融着する事が最大の特徴である。
【０００８】
本発明は、未開発技術の課題を解決するために、昇降するプレス定板の下部に上向きの枠状熱板を装設し、プレス定板と枠状熱板の間に、上面側をポリウレタンフイルム、下面側をポリエチレンフイルムにして積層した複合フイルムを載置するフイルム受け台を設け、このフイルム受け台は受け台支持軸により支持し、フイルム受け台は、上面が前記枠状熱板の上面と略同高以上の位置して枠状熱板の枠内に入るように配設し、このフイルム受け台と前記プレス定板の間に、紙、樹脂等で成る被融着板材を載せてプレス板と共に下降する板材受け部を設け、前記プレス定板の下降により被融着板材と複合フイルムを重ね合わせ、複合フイルムのフイルム受け台の外側部分のポリウレタンフイルムだけを枠状熱板に接触させて溶融し、被融着板材に熱融着する融着方法及びその熱融着機である。
【０００９】
［作用］
本発明は、上部に設けた昇降するプレス定板と下部に設けた上向きの枠状熱板の間に配設され、受け台支持軸により支持されるフイルム受け台の上に、上面側をポリウレタンフイルム、下面側をポリエチレンフイルムにして積層した複合フイルムを載置し、フイルム受け台に載置した複合フイルムとプレス定板の間に、配設された板材受け部に、紙、樹脂等で成る被融着板材を挿入して載置し、、前記プレス定板の下降により、板材受け部上の被融着板材をフイルム受け台上の複合フイルムに押し当てて被融着板材と複合フイルムを重ね合わせて枠状熱板に接触させ、融着後において、ポリエチレンフイルムが容易に剥離できるように複合フイルムのフイルム受け台の外側部分のポリウレタンフイルムだけを被融着板材に熱融着するものである。
【００１０】
本発明は複合フイルムを使用し、その複合フイルムが、ポリウレタンフイルムとポリエチレンフイルムを積層した複合フイルム１であり、両フイルムの特性を活用したものである。ポリウレタンフイルムは約８０℃で溶融するが、ポリエチレンフイルムは約１２０℃で溶融するので、両者の融点は大きく相違し、かつ、両者の溶着性は良くないので、融着時に厳密な温度管理を行って溶融温度の低いポリウレタンフイルムだけを溶融し、接触した被融着板材下面に融着する。融着後のポリエチレンフイルムとポリエチレンフイルムの剥離強度は、ピール剥離強度で５．０〜１５０ｇ／ｃｍを有し、剥離性を維持させる事ができる。
【００１１】
一方、ポリウレタンフイルムはエラストーマの状態であるから、機械又は手動により伸ばしたり、引き込んだりした場合、伸長の方向及長さが一定でないポリウレタンフイルムにポリエチレンフイルムを積層して複合フイルムに構成して使用する事により、フイルムの移動及び送り出しがスムーズになり、融着作業性が格段に向上する。又、複合フイルムの上面側をポリウレタンフイルムにして被融着板材に融着することにより、融着後、ポリエチレンフイルムだけが剥離でき、被融着板材に残ったポリウレタンフイルムの強靭性とスパンデックス性を利用する梱包緩衝部材が製作できる。
【００１２】
ポリウレタンフイルムの強靭性は、引張破断強度が６００ｋｇ／ｃｍ２以上、引張破断伸度が５００％以上の物性を持ち、かつ、突起物に対しても充分伸び、穴があいてもそこから伝破しない弾性回復特性を有する。又、ポリウレタンフイルムは超粘着性があり滑りを防止できるので、熱プレスにより単独融着又は連続自動融着する上で、複合フイルムの位置規制を容易にする事ができる。
【００１３】
［実施例］
図１及び図２に示す実施例について説明する。上部にプレスシリンダー９により昇降するプレス定板１０を設け、下部に加熱器により加熱される上向きの枠状熱板７を設け、その間に、受け台支持軸１６により支持され、上面が前記枠状熱板７の上面と略同高に位置して枠内に配置されるフイルム受け台１を設ける。このフイルム受け台１１の上に、点線図示の通り、上面側をポリウレタンフイルム１ａ、下面側をポリエチレンフイルム１ｂにして積層した複合フイルム１を載置する。複合フイルム１とプレス定板１０の間には、紙、樹脂等で成る被融着板材１２を載せてプレス定板１０と共に下降する板材受け部１３を設ける。図３はその上下関係配置を示した概略図である。図において、移動ハンドル８は枠状熱板７を含む加熱部分の位置を移動させ、プレス架台１５はプレス定板１０を含む熱プレス装置６の架台である。
【００１４】
図３に示す上下配置において、プレス定板１０が下降すると、図４に示す通り、被融着板材１２と複合フイルム１は重合した状態で枠状熱板７に接触し、複合フイルム１のフイルム受け台１１の外側部分のポリウレタンフイルム１ａだけを、枠状熱板７を加熱して被融着板材１２に熱融着する。図５は、複合フイルム１を熱融着した被融着板材１２の部分拡大図を示し、製品収納用の穴部１８の周縁に熱融着された複合フイルム１は、被融着板材１２側がポリウレタンフイルム１ａであり、その外側に容易に剥離できるようにポリエチレンフイルム１ｂが積層されている。
【００１５】
図６は、本発明により被融着板材１２に融着された複合フイルム１の外側にあるポリエチレンフイルム１ｂを剥離した後、被融着板材１２を２枚使用して対向させ、製品梱包用の緩衝支持材として使用する場合の実施例であり、被融着板材１２に設けた製品収納用の穴部１８の位置のポリウレタンフイルム１の間に製品１９を挟み込み、この状態で包装箱２０に収納する。従って、内部の製品１９は全面ポリウレタンフイルム１ａに囲まれて支持されるので、外部からの衝撃を完全に緩和する事ができる。
【００１６】
図７は本発明による熱プレス装置６を連設した自動連続熱融着機械の全体図である。フイルム置き台１４にセツトされたロール状の複合フイルム１は、ポリウレタンフイルム１ａを上面側、ポリエチレンフイルム１ｂを下面側にした状態で送り出される。複合フイルム１が送り出されるフイルム供給部２は、フイルム先端をフイルムキャリヤーにセットする。このフイルムキヤリヤーは、エアシリンダー部に結合されていて、複合フイルムの寸法をセット後、ロール状の複合フイルム１を定格寸法に切断する切断部３に送り込む。切断部３は初期セット寸法に合わせた複合フイルム１を送り出した後、上下動する切断刃によりフイルム余長を切断し、複合フイルム１を定格寸法に切断する。切断後の複合フイルム１は、吸盤でカッター部テーブル４に送り、フイルム送り込み部５のベルト式装置により本発明に係る熱プレス装置６のフイルム受け台１１上に搬送し、溶着位置に正確にセットする。
【００１７】
本発明に係る熱プレス装置６は、上述の通り、枠状熱板７を要素とする加熱部と昇降するプレス定板１０を要素とするプレス部により構成され、上面がポリウレタンフイルム１ａ、下面がポリエチレンフイルム１ｂになっている定格寸法の複合フイルム１がセットされた後、その上部に設けた板材受け部１３に所定のダンボールシート等の紙材や樹脂材で成る被融着板材１２を載置して供給し、プレス定板１０を下降させて複合フイルム１を被融着板材１２に融着する。
【００１８】
図８は、複合フイルム１を載置するフイルム受け台１１を支持する受け台支持軸１６に、スプリング１７を嵌設してフイルム受け台１１を昇降自在に支持すると共に、下降の際に枠状熱板７の枠内に入るように配置し、下部の枠状熱板７より上方に離して位置させた実施例である。この実施例においては、熱融着作動前は図９に示す通り被融着板材１２と複合フイルム１の間に位置しており、プレス定板１０の下降により、被融着板材１２、複合フイルム１、フイルム受け台１１は共に下降し、図１０に示す通り重なった状態で枠状熱板７に接触し、フイルム受け台１１の外側に位置する部分のポリウレタンフイルム１ａだけを溶融してその上側に重なっている被融着板材１２に熱融着する。
【００１９】
［考案の効果］
本発明は、製品梱包用緩衝支持体に最適な強靭性とスパンデックス性に富むが、作業性のよくないポリウレタンフイルムと、剥離性と作業性のよいポリエチレンフイルムを積層して構成した複合フイルムを、限定して使用し、両フイルムの特性を有効に利用し、融着後にポリウレタンフイルムを残してポリエチレンフイルムだけを簡単に剥離させる事ができるように、被融着板材に熱融着する未開発の融着方法及びその熱融着機である。従って、環境保全上好ましくない接着剤等を使用せずに被融着板材に複合フイルムを熱融着する融着方法及び熱融着機であり、ポリウレタンフイルムが残る被融着板材は、強靭性とスパンデックス性に富むポリウレタンフイルムの特性を利用した各種の製品梱包用の緩衝支持材に製造する事ができ、又、熱融着技術分野に広く利用できるものである。
【図面の簡単な説明】
【図１】本発明に係る実施例の被融着板材を挿入する側の正面図である。
【図２】図１に示す実施例の側面図である。
【図３】図１及び図２に示す実施例における熱融着作動前の状態の概略位置図である。
【図４】図１及び図２に示す実施例における熱融着時の状態の概略位置図である。
【図５】本発明により熱融着した被融着板材の部分拡大断面図である。
【図６】本発明により複合フイルムのポリウレタンフイルムを残し、ポリエチレンフイルムを剥離した被融着板材を製品梱包用の緩衝支持材として使用する場合の実施例の縦断面図及び部分切開斜視図である。
【図７】本発明に係る熱融着機を連設した自動連続熱融着機械の全体側面図である。
【図８】本発明において、フイルム受け台をスプリングにより支持した他の実施例の側面図である。
【図９】図８に示す実施例における熱融着作動前の状態の概略位置図である。
【図１０】図８に示す実施例における熱融着時の状態の概略位置図である。
【符号の説明】
１． 複合フイルム
１ａ． ポリウレタンフイルム
１ｂ． ポリエチレンフイルム
２． フイルム供給部
３． 切断部
４． カッター部テーブル
５． フイルム送り込み部
６． 熱プレス装置
７． 枠状熱板
８． 移動ハンドル
９． プレスシリンダー
１０． プレス定板
１１． フイルム受け台
１２． 被融着板材
１３． 板材受け部
１４． フイルム置き台
１５． プレス架台
１６． 受け台支持軸
１７． スプリング
１８． 穴部
１９． 製品
２０． 包装箱[0001]
[Industrial application fields]
The present invention provides a composite film composed of a laminate of a polyurethane film with high toughness and spandex, but poor workability, and a polyethylene film with good peelability. The present invention relates to a fusing method and a heat fusing machine for heat fusing to a material to be fused to be used as a cushioning material for product packing without using an adhesive.
[0002]
[Conventional technology]
2. Description of the Related Art Conventionally, a fusion method and a thermal fusion machine for heat-sealing a resin film generally used to a plate material of another material are fused between an upper press hot plate and a press stand that are heated up and down. Fusing method and heat fusing machine in which a resin film is placed on the upper side, a plate to be fused is placed on the lower side, a press hot plate is pushed down on a press stand, and a resin film is heat-fitted to the plate to be fused Met. Also, the resin film used for fusing to the material to be fused is a single layer, and a composite film in which two types of resin films are laminated is used. There was no technique for fusing so that only the film could be easily peeled off.
[0003]
Therefore, a composite film in which polyurethane film and polyethylene film are laminated is used, and it is heat-sealed to a material to be fused made of paper, resin, etc. without using an adhesive, and is melted after heat-sealing. Fusing method and heat fusing machine for heat fusing so that the polyethylene film can be easily peeled off and only the polyurethane film rich in buffering power can be left on the material to be fused when the plate is used as a cushioning material for product packing Is undeveloped.
[0004]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention provides a fusion method in which a composite film formed by laminating a polyurethane film and a polyethylene film, which has not been developed so far, is heat-sealed so that an adhesive is used for a paper board material and a resin board material. And its heat fusion machine. That is, two types of resin films are laminated, a composite film composed of a polyurethane film on one side and a polyethylene film on the other side is heat-sealed to a paper board material such as cardboard sheet or cardboard, or a resin board material, and then fused. Thereafter, the polyethylene film is peeled off, and heat fusion is performed so that only the polyurethane film can be left on the material to be fused.
[0005]
The heat-bonded plate material is three-dimensionally assembled by bending, bending, etc., removing and removing the polyethylene film, and storing it in a viewing box or packaging container, utilizing the characteristics of polyurethane film. It is used as a cushioning support material for product packaging.
[0006]
[Means for solving problems]
The present invention specifies a resin film that is thermally fused to a material to be fused as a composite film of a polyurethane film that is rich in toughness and subbandex and a polyethylene film that is easy to release, and the composite film is packaged after being fused. When used as a support material, the present invention is a fusing method and a heat fusing machine for heat fusing to a material to be fused made of a paper material or a resin material so that only a polyethylene film can be easily peeled while leaving a polyurethane film.
[0007]
Conventionally, the upper and lower arrangement relationship in general heat fusion is from the top to the heated press hot plate, the resin film, the material to be fused, and the press table in this order. It is the order of the heated press plate, the material to be welded, the composite film, and the frame-shaped hot plate, which is the reverse of the general stacking method. What is the conventional heat press method and its heat fusion machine? It is completely different. In particular, the composite film at the time of fusing is characterized in that the polyurethane film is on the upper surface side in contact with the material to be fused and the polyethylene film is on the lower surface side in contact with the frame-shaped hot plate, and both the long and short characteristics of the polyurethane film and the polyethylene film. The main features are that they are used in a synergistic manner, and only the polyurethane film is left on the material to be fused after fusing and heat-sealed so that the polyethylene film can be easily peeled off.
[0008]
In order to solve the problems of the undeveloped technology, the present invention is provided with an upward frame-shaped hot plate at the lower part of the press fixed plate that moves up and down, and between the press fixed plate and the frame-shaped hot plate, the upper surface side is a polyurethane film, A film cradle is provided on which a composite film laminated with a polyethylene film on the lower surface side is placed. The film cradle is supported by a cradle support shaft, and the upper surface of the film cradle is substantially the same as the upper surface of the frame-shaped heat plate. It is placed so as to be within the frame of the frame-shaped hot plate at a position higher than the same height, and a fusing plate material made of paper, resin, etc. is placed between the film receiving plate and the press plate, and lowered together with the press plate. A plate material receiving portion is provided, and the press-fixed plate is lowered to superimpose the fusion-bonded plate material and the composite film, and only the polyurethane film on the outer side of the film receiving base of the composite film is brought into contact with the frame-shaped hot plate and melted. Fusing plate A fusion method and a heat-sealing machine for heat sealing to.
[0009]
[Action]
The present invention is a polyurethane film on the upper surface side on a film pedestal disposed between a press fixed plate that moves up and down provided on the upper part and an upward frame-like hot plate provided on the lower part, and supported by a cradle support shaft. A composite film laminated with a polyethylene film on the lower surface is placed, and a sheet-to-be-bonded plate made of paper, resin, or the like is placed on the plate material receiving portion disposed between the composite film placed on the film cradle and the press plate. Is inserted and placed, and when the press plate is lowered, the plate material to be fused on the plate material receiving portion is pressed against the composite film on the film cradle and the plate material to be fused and the composite film are overlapped to form a frame. Only the polyurethane film on the outer side of the film pedestal of the composite film is heat-sealed to the material to be welded so that the polyethylene film can be easily peeled after being brought into contact with the heat plate and fused. .
[0010]
In the present invention, a composite film is used, and the composite film is a composite film 1 in which a polyurethane film and a polyethylene film are laminated, and the characteristics of both films are utilized. Polyurethane film melts at about 80 ° C, but polyethylene film melts at about 120 ° C, so the melting points of the two differ greatly and the weldability of the two is not good. Then, only the polyurethane film having a low melting temperature is melted and fused to the lower surface of the contacted material to be fused. The peel strength between the polyethylene film and the polyethylene film after fusion has a peel peel strength of 5.0 to 150 g / cm, and the peelability can be maintained.
[0011]
On the other hand, since polyurethane film is in an elastomeric state, when stretched or pulled in by machine or manually, a polyethylene film is laminated on a polyurethane film whose stretch direction and length are not constant, and used as a composite film. As a result, the film can be moved and fed smoothly, and the fusing workability can be greatly improved. Also, by making the upper surface of the composite film into a polyurethane film and fusing it to the material to be fused, only the polyethylene film can be peeled off after fusing, and the toughness and spandex properties of the polyurethane film remaining on the material to be fused can be reduced. The packing cushioning member to be used can be manufactured.
[0012]
The toughness of the polyurethane film has physical properties such as a tensile breaking strength of 600 kg / cm 2 or more and a tensile breaking elongation of 500% or more. Does not have elastic recovery characteristics. In addition, since the polyurethane film is super-adhesive and can be prevented from slipping, the position of the composite film can be easily regulated when performing single fusion or continuous automatic fusion by hot pressing.
[0013]
[Example]
The embodiment shown in FIGS. 1 and 2 will be described. A press plate 10 that is moved up and down by a press cylinder 9 is provided at the upper part, and an upward frame-like hot plate 7 that is heated by a heater is provided at the lower part. A film cradle 1 is provided that is positioned approximately at the same height as the upper surface of the hot plate 7 and is disposed within the frame. On the film receiving base 11, as shown by dotted lines, a composite film 1 is placed which is laminated with a polyurethane film 1 a on the upper surface side and a polyethylene film 1 b on the lower surface side. Between the composite film 1 and the press plate 10, there is provided a plate material receiving portion 13 on which a to-be-fused plate material 12 made of paper, resin or the like is placed and descends together with the press plate 10. FIG. 3 is a schematic diagram showing the arrangement in the vertical relationship. In the figure, the movable handle 8 moves the position of the heating part including the frame-shaped hot plate 7, and the press pedestal 15 is a pedestal of the hot press device 6 including the press plate 10.
[0014]
In the vertical arrangement shown in FIG. 3, when the press plate 10 is lowered, as shown in FIG. 4, the plate material 12 and the composite film 1 are in contact with the frame-like hot plate 7 in a polymerized state, and the film of the composite film 1 is placed. Only the polyurethane film 1a on the outer portion of the cradle 11 is heat-sealed to the material to be fused 12 by heating the frame-shaped hot plate 7. FIG. 5 is a partially enlarged view of the fusion-bonded plate material 12 to which the composite film 1 is heat-sealed. The composite film 1 heat-fused to the periphery of the hole 18 for storing the product is provided on the side of the fusion-bonded plate material 12. It is a polyurethane film 1a, and a polyethylene film 1b is laminated on the outside so as to be easily peeled off.
[0015]
FIG. 6 shows an example of the product packaging after peeling the polyethylene film 1b on the outer side of the composite film 1 fused to the material 12 to be fused according to the present invention. In this embodiment, the product 19 is sandwiched between the polyurethane films 1 at the positions of the product storage holes 18 provided in the fusion-bonded plate material 12 and stored in the packaging box 20 in this state. To do. Therefore, since the internal product 19 is surrounded and supported by the entire polyurethane film 1a, the impact from the outside can be completely mitigated.
[0016]
FIG. 7 is an overall view of an automatic continuous heat fusion machine provided with a hot press device 6 according to the present invention. The roll-shaped composite film 1 set on the film stand 14 is fed out with the polyurethane film 1a on the upper surface side and the polyethylene film 1b on the lower surface side. The film supply unit 2 to which the composite film 1 is fed sets the film front end to the film carrier. This film carrier is connected to the air cylinder part, and after setting the dimensions of the composite film, the roll-shaped composite film 1 is fed into a cutting part 3 for cutting to a rated dimension. The cutting unit 3 sends out the composite film 1 that matches the initial set size, and then cuts the surplus length of the film with a cutting blade that moves up and down, thereby cutting the composite film 1 to the rated size. The composite film 1 after being cut is fed to the cutter table 4 with a suction cup, conveyed to the film receiving base 11 of the hot press device 6 according to the present invention by the belt type device of the film feeding portion 5, and accurately set at the welding position. To do.
[0017]
As described above, the hot press device 6 according to the present invention is composed of a heating part having the frame-shaped hot plate 7 as an element and a press part having a pressing plate 10 that moves up and down as an element, the upper surface being a polyurethane film 1a, and the lower surface being a lower part. After the composite film 1 having the rated dimensions, which is a polyethylene film 1b, is set, a fusion-bonded plate 12 made of a paper material such as a predetermined cardboard sheet or a resin material is placed on the plate material receiving portion 13 provided on the upper portion. Then, the press plate 10 is lowered, and the composite film 1 is fused to the plate material 12 to be fused.
[0018]
FIG. 8 shows a spring 17 fitted on a cradle support shaft 16 that supports a film cradle 11 on which the composite film 1 is placed to support the film cradle 11 so that it can be raised and lowered. In this embodiment, the heat plate 7 is disposed so as to be within the frame of the hot plate 7 and is located above the lower frame-like hot plate 7. In this embodiment, before the heat fusion operation, as shown in FIG. 9, it is located between the material to be fused 12 and the composite film 1, and when the press plate 10 is lowered, the material to be fused 12 and the composite film are located. 1. The film cradle 11 is lowered and contacts the frame-like hot plate 7 in the overlapping state as shown in FIG. 10, and only the polyurethane film 1a located on the outer side of the film cradle 11 is melted to the upper side. It heat-seal | fuses to the to-be-fused board | plate material 12 which has overlapped.
[0019]
[Effect of device]
The present invention is a composite film constituted by laminating a polyurethane film which is rich in toughness and spandex which is optimal for a cushioning support for product packaging, but has poor workability, and a polyethylene film which has good peelability and workability. Undeveloped and heat-bonded to the material to be welded so that only the polyethylene film can be easily peeled off, leaving only the polyurethane film after fusion, effectively using the properties of both films. A fusing method and a heat fusing machine. Therefore, a fusing method and a heat fusing machine for fusing a composite film to a fusing plate material without using an unfavorable adhesive for environmental conservation, and the fusing plate material in which the polyurethane film remains is tough. It can be produced as a cushioning support material for various product packaging utilizing the characteristics of polyurethane film rich in spandex and can be widely used in the field of heat fusion technology.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a front view of a side into which a material to be fused according to an embodiment of the present invention is inserted.
FIG. 2 is a side view of the embodiment shown in FIG.
FIG. 3 is a schematic position diagram of the state before the heat fusion operation in the embodiment shown in FIGS. 1 and 2;
4 is a schematic position diagram of a state at the time of heat fusion in the embodiment shown in FIGS. 1 and 2. FIG.
FIG. 5 is a partially enlarged cross-sectional view of a fusion-bonded plate material heat-sealed according to the present invention.
FIGS. 6A and 6B are a longitudinal sectional view and a partially cutaway perspective view of an embodiment in which a fusion-bonded plate material from which a polyethylene film is peeled off is used as a cushioning support material for product packaging, leaving a polyurethane film of a composite film according to the present invention. .
FIG. 7 is an overall side view of an automatic continuous heat-sealing machine provided with continuous heat-sealing machines according to the present invention.
FIG. 8 is a side view of another embodiment in which the film cradle is supported by a spring in the present invention.
9 is a schematic position diagram of the state before the heat fusion operation in the embodiment shown in FIG.
10 is a schematic position diagram of a state at the time of heat fusion in the embodiment shown in FIG.
[Explanation of symbols]
1. Composite film 1a. Polyurethane film 1b. 1. Polyethylene film 2. Film supply unit Cutting part 4. 4. Cutter unit table 5. Film feeding section 6. Hot press device Frame-shaped hot plate8. 8. Moving handle Press cylinder 10. Press plate 11. Film cradle 12. 12. Fused plate material Plate material receiving part 14. Film stand 15. Press mount 16. Cradle support shaft 17. Spring 18. Hole 19. Product 20. Packaging box

Claims (3)

プレスシリンダーにより昇降する上部に設けたプレス定板と、加熱器により加熱される下部に設けた上向きの枠状熱板の間に配設されたフイルム受け台の上に、上面側をポリウレタンフイルム、下面側をポリエチレンフイルムにして積層した複合フイルム１を載置すると共に、複合フイルムとプレス定板の間に、紙、樹脂等で成る被融着板材を挿入した後、前記プレス定板の下降により被融着板材と複合フイルムを重ね合わせて枠状熱板７に接触させ、フイルム受け台の外側部分のポリウレタンフイルムだけを被融着板材に熱融着する事を特徴とする、ポリウレタンフイルムとポリエチレンフイルムの複合フイルムを被融着板材に熱融着する融着方法。Polyurethane film on the upper surface side, lower surface side on the film pedestal arranged between the press plate provided at the upper part that moves up and down by the press cylinder and the upward frame-like hot plate heated at the lower part by the heater The composite film 1 laminated with polyethylene film is placed, and a fusion-bonded plate material made of paper, resin or the like is inserted between the composite film and the press plate, and then the plate-to-be-bonded by lowering the press plate. A composite film of a polyurethane film and a polyethylene film, characterized in that the film and the composite film are overlapped and brought into contact with the frame-shaped heat plate 7 and only the polyurethane film on the outer side of the film cradle is heat-sealed to the material to be fused. A method of heat-sealing to the material to be fused. プレスシリンダーにより昇降するプレス定板の下部に、加熱器により加熱される上向きの枠状熱板を装設し、プレス定板と枠状熱板の間に、上面側をポリウレタンフイルム、下面側をポリエチレンフイルムにして積層した複合フイルムが載置される上面を、前記枠状熱板の上面と略同高に配置して枠内に装設したフイルム受け台を、受け台支持軸により支持し、フイルム受け台と前記プレス定板の間に、紙、樹脂等で成る被融着板材を載せ、プレス定板と共に下降する板材受け部を設けた事を特徴とする、ポリウレタンフイルムとポリエチレンフイルムの複合フイルムを被融着板材に熱融着する熱融着機。An upward frame-shaped hot plate heated by a heater is installed under the press plate that is raised and lowered by the press cylinder. Between the press plate and the frame-shaped hot plate, the upper surface is a polyurethane film, and the lower surface is a polyethylene film. The upper surface on which the laminated composite film is placed is arranged at substantially the same height as the upper surface of the frame-shaped hot plate, and the film receiving base installed in the frame is supported by the receiving base support shaft. A composite film of polyurethane film and polyethylene film, which is provided with a plate receiving part made of paper, resin, etc. between the table and the press fixed plate and provided with a plate receiving part that descends with the press fixed plate. A heat-sealing machine that heat-seals to the plate material. プレスシリンダーにより昇降するプレス定板の下部に、加熱器により加熱される上向きの枠状熱板を装設し、プレス定板と枠状熱板の間に、上面側をポリウレタンフイルム、下面側をポリエチレンフイルムにして積層した複合フイルムを載置する上面が、下降時に前記枠状熱板の枠内に配置されるフイルム受け台を、スプリングを嵌設した受け台支持軸により昇降自在に支持し、フイルム受け台と前記プレス板の間に、紙、樹脂等で成る被融着板材を載せ、プレス定板と共に下降する板材受け部を設けた事を特徴とする、ポリウレタンフイルムとポリエチレンフイルムの複合フイルムを被融着板材に熱融着する熱融着機。An upward frame-shaped hot plate heated by a heater is installed under the press plate that is raised and lowered by the press cylinder. Between the press plate and the frame-shaped hot plate, the upper surface is a polyurethane film, and the lower surface is a polyethylene film. The upper surface on which the laminated composite film is placed supports the film cradle, which is placed in the frame of the frame-shaped hot plate when lowered, by a cradle support shaft fitted with a spring so that the film cradle can be raised and lowered. A composite film of polyurethane film and polyethylene film is to be fused, characterized in that a fused sheet material made of paper, resin, etc. is placed between the table and the press plate, and a plate material receiving portion that descends with the press plate is provided. A heat-sealing machine for heat-sealing to plate materials.
JP28333199A 1999-08-27 1999-08-27 Fusing method for heat fusing a composite film of polyurethane film and polyethylene film to a material to be fused and its heat fusing machine Expired - Lifetime JP4171950B2 (en)

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PCT/JP2001/000441 WO2002058914A1 (en) 1999-08-27 2001-01-24 Method and device for fusing film

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