JPH0852802A - Method for bonding of plastic by high frequency induction heating - Google Patents

Method for bonding of plastic by high frequency induction heating

Info

Publication number
JPH0852802A
JPH0852802A JP21072094A JP21072094A JPH0852802A JP H0852802 A JPH0852802 A JP H0852802A JP 21072094 A JP21072094 A JP 21072094A JP 21072094 A JP21072094 A JP 21072094A JP H0852802 A JPH0852802 A JP H0852802A
Authority
JP
Japan
Prior art keywords
high frequency
mold
plastic
frequency
dielectric heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP21072094A
Other languages
Japanese (ja)
Other versions
JP2782415B2 (en
Inventor
Masami Mineshima
正己 峰嶋
Mitsuo Nakamura
光郎 中村
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.)
PIARESU KK
PREMIUM KK
Original Assignee
PIARESU KK
PREMIUM KK
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
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Application filed by PIARESU KK, PREMIUM KK filed Critical PIARESU KK
Priority to JP21072094A priority Critical patent/JP2782415B2/en
Publication of JPH0852802A publication Critical patent/JPH0852802A/en
Application granted granted Critical
Publication of JP2782415B2 publication Critical patent/JP2782415B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—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
    • B29C65/02—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
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/32—Induction
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7441—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B29C66/944—Measuring or controlling the joining process by measuring or controlling the time by controlling or regulating the time
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • B29C66/91655—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the current intensity
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time values or ranges
    • 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
    • B29L2031/48—Wearing apparel
    • B29L2031/4842—Outerwear
    • 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
    • B29L2031/48—Wearing apparel
    • B29L2031/50—Footwear, e.g. shoes or parts thereof
    • B29L2031/504—Soles
    • 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
    • B29L2031/48—Wearing apparel
    • B29L2031/50—Footwear, e.g. shoes or parts thereof
    • B29L2031/507—Insoles
    • 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
    • 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
    • B29L2031/7148—Blood bags, medical bags

Abstract

PURPOSE:To prevent poisonous gas from being produced in incineration by a method wherein plastic is controlled at a temperature capable of being bonded by high frequency induction heating at a melting point of plastic or lower by heating a mold and/or a female mold of a high frequency welder. CONSTITUTION:By using a high frequency welder 1 having a mold 2 wherein a cutter 7 is arranged and a cavity plate 3 controlled at an optimized temperature by heating with a heater, a molded material 4 and a molded material 5 are welded with each other by fusion by high frequency induction heating. Specifically, the molded material 4 and the molded material 5 are placed between the mold 2 and the cavity plate 3. The molded material 4 and the molded material 5 are pressurized by specific pressure with the mold 2 and the cavity plate 3. They are bonded to each other by high frequency induction heating by specific highfrequency output for specific welding time. After welding by fusion, the mold 2 is separated from the cavity plate 3, and a product is taken out. Then, the respective processes are repeated, and the plastics are continuously bonded by high frequency induction heating.

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、高周波誘電加熱による
プラスチックの接着法に関するものであり、さらに詳し
くは構成要素としてハロゲン元素を含まないプラスチッ
ク成形物を高周波誘電加熱により接着する方法に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for adhering plastics by high-frequency dielectric heating, and more particularly to a method for adhering plastic moldings containing no halogen element as a constituent element by high-frequency dielectric heating. .

【０００２】[0002]

【従来の技術】従来、高周波誘電加熱によりポリ塩化ビ
ニルのフィルムやシートを融着して包材などの成形物が
製造されている。しかしポリ塩化ビニルはフィルムやシ
ートの溶融成形時や高周波誘電加熱時に塩酸、塩素など
の酸性有毒ガスが発生して作業環境を悪化する、押出機
などの成形加工機を腐食する、可塑剤の安全性の問題が
ある、又焼却すると上記有害ガスが発生して地球環境を
汚染するなどの問題がある。2. Description of the Related Art Conventionally, a molded product such as a packaging material is manufactured by fusing a polyvinyl chloride film or sheet by high frequency dielectric heating. However, polyvinyl chloride deteriorates the working environment by generating acidic toxic gases such as hydrochloric acid and chlorine during melt molding of films and sheets and high-frequency dielectric heating, corrodes molding machines such as extruders, and safeguards plasticizers. There is also a problem that the harmful gas is generated when incinerated to pollute the global environment.

【０００３】一方、ポリオレフィン樹脂などはポリ塩化
ビニルのような問題が全くなく、焼却しても有毒ガスな
どの発生がなく地球環境に優しい素材であるが、ポリオ
レフィン樹脂などは誘電率や誘電損失が低く高周波誘電
加熱による融着が困難であるため、専ら外部加熱による
熱融着法が用いられてきた。しかし外部加熱による熱融
着法は所要時間が長くなる、加熱が不均一になるなどの
欠点があり満足すべき方法とはいえなかった。そこで、
接着面に鉄などの金属導電素子を散在させ、高周波誘導
加熱により鉄などの金属導電素子を加熱し、その熱でポ
リオレフィン発泡体の接着面を融かして接着する方法
（特開昭５５−６１４３５号公報）、鉄などの表面を変
性ポリオレフィンで被覆したものをポリエチレンなどに
分散し、それを接着しようとするポリエチレンの間に介
在させ、高周波エネルギーを付与して融解せしめ、接着
する方法（特開昭６１−１５８４２７号公報）、ポリオ
レフィン樹脂と炭素粉末を必須成分とする高周波融着材
を接着面間に挟んで、高周波を印加して接着する方法
（特開昭６２−３９２２１号公報）、カーボンブラック
を少量配合したポリオレフィン成形物と成形物を接着す
る際、カーボンブラックを多量配合したポリオレフィン
接着層を介在させ高周波電圧を印加し、接着層を加熱溶
融させて成形物と融着させる方法（特開平３−２１８８
１３号公報）など多くの方法が提案されている。しか
し、いずれの方法も高周波誘導加熱により加熱可能な鉄
や炭素などの粉末を配合するので、色相や外観が悪化す
る、機械的強度が低下するなどの欠点があった。On the other hand, polyolefin resins and the like have no problems like polyvinyl chloride and do not generate toxic gases even when incinerated, and are materials friendly to the global environment. However, polyolefin resins and the like have dielectric constant and dielectric loss. Because of low temperature and difficulty of fusion by high frequency dielectric heating, heat fusion method by external heating has been used exclusively. However, the heat fusion method using external heating is not a satisfactory method because of disadvantages such as a long required time and uneven heating. Therefore,
A method in which metal conductive elements such as iron are scattered on the bonding surface, the metal conductive elements such as iron are heated by high-frequency induction heating, and the bonding surface of the polyolefin foam is melted and bonded by the heat (JP-A-55- No. 61435 gazette), a method of dispersing a surface of iron or the like coated with a modified polyolefin in polyethylene or the like, interposing it between polyethylenes to be adhered, applying high frequency energy to melt and then adhering (special feature (Japanese Patent Laid-Open No. 61-158427), a method in which a high-frequency fusion material containing a polyolefin resin and carbon powder as essential components is sandwiched between bonding surfaces and a high frequency is applied to bond the materials (Japanese Patent Laid-Open No. 62-39221), When adhering a polyolefin molded product containing a small amount of carbon black to a molded product, a polyolefin adhesive layer containing a large amount of carbon black is used for high-frequency bonding. Applying a voltage, a method of molding and fusing the adhesive layer is heated and melted (JP-A 3-2188
Many methods have been proposed such as Japanese Patent No. 13). However, in each of the methods, powders such as iron and carbon that can be heated by high-frequency induction heating are blended, so that there are drawbacks such as deterioration in hue and appearance and reduction in mechanical strength.

【０００４】[0004]

【発明が解決しようとする課題】本発明の目的は、焼却
しても有毒ガスなどの発生がなく地球環境に優しいポリ
オレフィン樹脂などの、構成要素としてハロゲン元素を
含まないプラスチックに対して鉄や炭素などを配合した
り、あるいは成形物間に鉄や炭素などを配合した接着層
を介在させることなく、ポリオレフィン樹脂などの成形
物を高周波誘電加熱により接着する方法を提供すること
である。SUMMARY OF THE INVENTION An object of the present invention is to provide iron and carbon to plastics containing no halogen element as a constituent element such as a polyolefin resin which does not generate toxic gas when burned and is environmentally friendly. It is an object of the present invention to provide a method for adhering a molded product such as a polyolefin resin by high frequency dielectric heating without mixing the above, or without interposing an adhesive layer mixed with iron or carbon between the molded products.

【０００５】[0005]

【問題を解決するための手段】本発明者らは、鋭意検討
の結果、ポリオレフィン樹脂などの成形物を高周波誘電
加熱により接着する際、高周波ウエルダーの金型（一方
の電極）や下板（他方の電極）を特定の温度に加熱する
とともに、望ましくは圧力、ウエルド時間、高周波出力
なども高周波誘電加熱により接着可能な範囲に制御する
ことにより課題を解決することができることを見いだし
本発明を成すに至った。As a result of earnest studies, the present inventors have found that when a molded product such as a polyolefin resin is bonded by high frequency dielectric heating, the mold (one electrode) or the lower plate (the other) of the high frequency welder is bonded. It has been found that the problem can be solved by heating the electrode of (1) to a specific temperature and controlling the pressure, the weld time, the high frequency output, etc. within a range in which they can be bonded by high frequency dielectric heating. I arrived.

【０００６】本発明の請求項１の発明は、構成要素とし
てハロゲン元素を含まず、誘電率２．３以上のプラスチ
ックの成形物同志、あるいは該成形物と、構成要素とし
てハロゲン元素を含まず、誘電率２．３以上の他のプラ
スチックの成形物とを高周波誘電加熱により接着する方
法において、高周波ウエルダーの金型および／または下
板を加熱して、プラスチックの融点以下であって高周波
誘電加熱により接着可能な温度に制御することを特徴と
する高周波誘電加熱によるプラスチックの接着法であ
る。The invention according to claim 1 of the present invention does not include a halogen element as a constituent element, and molded articles made of plastics having a dielectric constant of 2.3 or more, or the molded article and a halogen element as a constituent element are not included. In a method of adhering a molded product of another plastic having a dielectric constant of 2.3 or more by high-frequency dielectric heating, the mold and / or the lower plate of the high-frequency welder is heated to a temperature lower than the melting point of the plastic by high-frequency dielectric heating. It is a method for adhering plastics by high-frequency dielectric heating, which is characterized by controlling the temperature at which adhesion is possible.

【０００７】本発明の請求項２の発明は、圧力および／
またはウエルド時間および／または高周波出力を高周波
誘電加熱により接着可能な範囲に制御することを特徴と
する請求項１記載の高周波誘電加熱によるプラスチック
の接着法である。According to the second aspect of the present invention, the pressure and / or
Alternatively, the welding time and / or the high-frequency output is controlled within a range in which the high-frequency dielectric heating can be used for adhesion, and the method for adhering plastic by high-frequency dielectric heating according to claim 1.

【０００８】本発明の請求項３の発明は、加熱されてい
ない金型あるいは下板を冷却することを特徴とする請求
項１あるいは請求項２記載の高周波誘電加熱によるプラ
スチックの接着法である。The invention according to claim 3 of the present invention is the method for adhering plastic by high frequency dielectric heating according to claim 1 or 2, wherein the mold or the lower plate which is not heated is cooled.

【０００９】本発明の請求項４の発明は、成形物がフィ
ルム、シートあるいはパイプである請求項１ないし請求
項３記載の高周波誘電加熱によるプラスチックの接着法
である。A fourth aspect of the present invention is the method for adhering a plastic by high frequency dielectric heating according to the first to third aspects, wherein the molded product is a film, a sheet or a pipe.

【００１０】本発明の請求項５の発明は、プラスチック
が、ポリオレフィン樹脂、ポリアミド樹脂、ポリエステ
ル樹脂である請求項１ないし請求項４記載の高周波誘電
加熱によるプラスチックの接着法である。The invention of claim 5 of the present invention is the method for adhering plastic by high frequency dielectric heating according to claim 1, wherein the plastic is a polyolefin resin, a polyamide resin or a polyester resin.

【００１１】[0011]

【作用】誘電率２．３以上のポリオレフィン樹脂などの
成形物同志、あるいはそれと他の誘電率２．３以上の成
形物を高周波誘電加熱により接着する際、高周波ウエル
ダーの金型（一方の電極）や下板（他方の電極）をポリ
オレフィン樹脂などの融点以下の特定の温度に加熱する
とともに、望ましくはウエルド圧力、ウエルド時間、高
周波出力なども高周波誘電加熱により接着可能な範囲に
制御することにより、従来、高周波誘電加熱により接着
できなかった該ポリオレフィン樹脂などの成形物を良好
に接着することができる。良好な接着ができるのはウエ
ルド圧力、ウエルド時間、高周波出力などを適宜最適範
囲に制御して高周波誘電加熱により接着を行う際に、加
熱された電極からの熱電導により該成形物が外部から加
熱されるとともに高周波誘電加熱による自己発熱により
該成形物の温度が融点以上になるためであると考えられ
るが、この考えに限定されるものではない。[Function] When a molded product such as a polyolefin resin having a dielectric constant of 2.3 or more is bonded to another molded product or another molded product having a dielectric constant of 2.3 or more by high frequency dielectric heating, a metal mold (one electrode) of a high frequency welder By heating the or lower plate (the other electrode) to a specific temperature below the melting point of the polyolefin resin, etc., and preferably by controlling the weld pressure, weld time, high frequency output, etc. within a range in which they can be bonded by high frequency dielectric heating. It is possible to satisfactorily adhere a molded article such as the polyolefin resin which could not be conventionally adhered by high frequency dielectric heating. Good adhesion can be achieved by controlling the weld pressure, weld time, high-frequency output, etc. to the optimum ranges as appropriate and performing the high-frequency dielectric heating to heat the molded product from the outside by heat conduction from the heated electrode. It is considered that this is because the temperature of the molded product becomes equal to or higher than the melting point due to self-heating due to high frequency dielectric heating, but the invention is not limited to this.

【００１２】本発明に用いるプラスチックは、構成要素
としてハロゲン元素を含まず、誘電率２．３以上のプラ
スチックであればポリオレフィン樹脂、ポリアミド樹脂
あるいはポリエステル樹脂などの熱可塑性樹脂でもエポ
キシ樹脂やフェノール樹脂などの熱硬化性樹脂でも、あ
るいはそれらの混合物であっても差し支えない。しか
し、誘電率２．３以下のプラスチックは誘電加熱による
接着が困難であるので好ましくない。誘電損失は大きい
ことが望ましいが、その値は該プラスチックの種類、高
周波ウエルダーの周波数、ウエルド温度などにより異な
る。The plastic used in the present invention does not contain a halogen element as a constituent element and may be a thermoplastic resin such as polyolefin resin, polyamide resin or polyester resin as long as it has a dielectric constant of 2.3 or more, epoxy resin or phenol resin. The thermosetting resin or the mixture thereof may be used. However, plastics having a dielectric constant of 2.3 or less are not preferable because they are difficult to bond by dielectric heating. It is desirable that the dielectric loss is large, but the value depends on the type of the plastic, the frequency of the high frequency welder, the weld temperature, and the like.

【００１３】本発明において、高周波ウエルダーの金型
や下板を特定の温度に加熱するが、接着するプラスチッ
ク成形物の予熱を行わない。接着するプラスチック成形
物全体を予熱すると、プラスチック成形物自体が反った
り、収縮したりして変形するので好ましくない。成形物
が吸湿していたり、成形物の表面に水分や油などが付着
している場合は、乾燥したり、表面を清浄にするなどの
前処理を行うことが好ましい。In the present invention, the mold and the lower plate of the high-frequency welder are heated to a specific temperature, but the plastic molding to be bonded is not preheated. If the entire plastic molded product to be bonded is preheated, the plastic molded product itself is warped, contracted or deformed, which is not preferable. When the molded product absorbs moisture or when water or oil adheres to the surface of the molded product, it is preferable to perform a pretreatment such as drying or cleaning the surface.

【００１４】高周波ウエルダーの金型や下板の温度はプ
ラスチックスの融点、誘電率、誘電損失などの特性や、
フィルム、シートやパイプなど成形物の形状、大きさ、
厚さなどにより異なるので一義的に決めることはできな
い。プラスチックの融点以下であって高周波誘電加熱に
より接着可能な温度に加熱、制御することが肝要であ
る。金型や下板の温度の具体例としては、ポリアミド樹
脂の場合凡そ９５〜１００℃程度、スチレン系エラスト
マーの場合は凡そ６０〜７０℃程度、ポリオレフィン系
共重合体の場合は凡そ５０℃程度、結晶性ポリプロピレ
ン組成物の場合約１２０℃などの例を挙げることができ
る。The temperature of the mold and lower plate of the high-frequency welder depends on characteristics such as melting point, dielectric constant and dielectric loss of plastics,
The shape and size of molded products such as films, sheets and pipes,
It cannot be uniquely determined because it depends on the thickness. It is important to heat and control to a temperature below the melting point of the plastic and capable of bonding by high frequency dielectric heating. Specific examples of the temperature of the mold and the lower plate are about 95 to 100 ° C. in the case of a polyamide resin, about 60 to 70 ° C. in the case of a styrene elastomer, and about 50 ° C. in the case of a polyolefin copolymer, In the case of a crystalline polypropylene composition, an example of about 120 ° C. can be given.

【００１５】高周波ウエルダーの金型や下板を加熱する
とともに、金型と下板の間にプラスチック成形物を介在
させて高周波誘電加熱により接着させる際、プラスチッ
ク成形物に与える圧力、ウエルド時間、高周波出力など
を高周波誘電加熱により接着可能な範囲に制御すること
が好ましい。高周波発信管とウエルドを行う電極との間
に高周波同調回路を設けて高周波発信管側のインピーダ
ンスとウエルドを行う電極側のインピーダンスとをマッ
チングさせることが好ましい。これらはプラスチックス
の融点、誘電率、誘電損失などの特性や、フィルム、シ
ートやパイプなど成形物の形状、大きさ、厚さなどによ
り変化するので一義的に決めることはできない。圧力、
ウエルド時間の具体例としては、ポリアミド樹脂フィル
ムの場合約３０〜５０Ｋｇ／ｃｍ2 、１〜５秒、スチレ
ン系エラストマーフィルムの場合約１０〜３０Ｋｇ／ｃ
ｍ2 、１〜４秒、ポリオレフィン系共重合体フィルムの
場合約１０〜３０Ｋｇ／ｃｍ2 、１〜３秒、結晶性ポリ
プロピレン組成物フィルムの場合約４０〜６０Ｋｇ／ｃ
ｍ2 、３〜７秒などの例を挙げることができる。通常、
ウエルド時間を経過した後、冷却するのに必要な時間だ
け圧力を保持することが好ましい。高周波出力は高周波
発信管の陽極の電流量を加減して接着するのに最適な出
力とすることができる。高周波同調回路のマッチングコ
ンデンサ容量を加減して陽極の電流量を加減することも
できる。ウエルドを行う際の陽極の電流量の上昇速度や
減少速度を調整できるような回路を設けるなどして、良
好な接着が得られるように上昇速度や減少速度を調整す
ることが好ましい。When the mold or lower plate of the high-frequency welder is heated and the plastic molded product is interposed between the mold and the lower plate and bonded by high-frequency dielectric heating, the pressure applied to the plastic molded product, weld time, high-frequency output, etc. Is preferably controlled by high-frequency dielectric heating within a range where adhesion is possible. It is preferable to provide a high-frequency tuning circuit between the high-frequency transmission tube and the electrode for welding to match the impedance on the high-frequency transmission tube side with the impedance on the electrode side for welding. These cannot be uniquely determined because they vary depending on the melting point, dielectric constant, dielectric loss, and other characteristics of plastics, and the shape, size, and thickness of molded products such as films, sheets, and pipes. pressure,
Specific examples of the weld time are about 30 to 50 Kg / cm 2 and 1 to 5 seconds for a polyamide resin film, and about 10 to 30 Kg / c for a styrene elastomer film.
m 2 , 1 to 4 seconds, about 10 to 30 kg / cm 2 for polyolefin copolymer film, 1 to 3 seconds, about 40 to 60 kg / c for crystalline polypropylene composition film
Examples of m 2 , 3 to 7 seconds and the like can be given. Normal,
After the weld time has elapsed, it is preferable to maintain the pressure for the time required for cooling. The high frequency output can be an optimum output for adhering by adjusting the current amount of the anode of the high frequency transmitting tube. It is also possible to adjust the capacity of the matching capacitor of the high frequency tuning circuit to adjust the current amount of the anode. It is preferable to adjust the rising speed and the decreasing speed so that good adhesion can be obtained by providing a circuit capable of adjusting the rising speed and the decreasing speed of the current amount of the anode during the welding.

【００１６】本発明においては、加熱されていない方の
金型あるいは下板を冷却することにより、連続的に高速
度で接着を行う場合、プラスチック成形物が金型あるい
は下板に付着するのを防止したり、ウエルド速度を向上
させたりすることができる。冷却温度は特に限定される
ものではなくプラスチックスの特性や、フィルム、シー
トやパイプなど成形物の形状、大きさ、厚さなどにより
適宜決めることが好ましい。In the present invention, when the mold or the lower plate which is not heated is cooled and the bonding is continuously performed at a high speed, the plastic molded product is prevented from adhering to the mold or the lower plate. It can be prevented or the weld speed can be improved. The cooling temperature is not particularly limited, and it is preferable to appropriately determine the cooling temperature according to the characteristics of the plastics, the shape, size, thickness, etc. of the molded product such as a film, sheet or pipe.

【００１７】本発明において使用する高周波ウエルダー
は特に限定されるものではなく、出力や周波数などにつ
いても通常ポリ塩化ビニルで用いられている市販の高周
波ウエルダーを使用することができる。金型と下板の間
に高周波ウエルドするフィルムやシートを介在させた
時、下板と高周波ウエルドするフィルムやシートの間に
テフロンコートガラスクロスなどの易剥離性絶縁シート
をさらに介在させると、高周波ウエルドしたフィルムや
シートの引き剥がれ性がよく、スパークを発してフィル
ムやシートが焼けたり、ちじんだりしないので好まし
い。金型の表面を剥離性にすることも好ましい。The high-frequency welder used in the present invention is not particularly limited, and a commercially available high-frequency welder generally used for polyvinyl chloride can be used in terms of output and frequency. When a high-frequency welding film or sheet was interposed between the mold and the lower plate, a high-frequency weld was obtained by further interposing an easily peelable insulating sheet such as Teflon-coated glass cloth between the lower plate and the high-frequency welding film or sheet. It is preferable because the film or sheet has good peeling property and sparks do not cause the film or sheet to burn or crease. It is also preferable to make the surface of the mold releasable.

【００１８】本発明において使用する金型は特に限定さ
れるものではなく、通常ポリ塩化ビニルで用いられてい
る金型を使用することができる。金型は通常、真鍮など
の金属を曲げて、枠部分にハンダ付けあるいはビス留め
した「曲げ型」と真鍮などの金属のブロックを彫って作
られた「彫刻型」があるが、いずれも使用することがで
きる。「曲げ型」は短期間で製作でき、コスト的に安い
長所があるので少量生産に適している一方、耐久性が劣
る欠点があるので、長期に亘り量産するような場合は
「彫刻型」が適している。本発明において金型を加熱し
て所定の温度に制御し、かつ均一な高周波エネルギーを
プラスチック成形物に印加するためには「彫刻型」がよ
り適している。The mold used in the present invention is not particularly limited, and a mold usually used for polyvinyl chloride can be used. There are two types of molds, one is usually a metal such as brass that is bent and then soldered or screwed to the frame part, and the other is a carved block made of metal such as brass. Both are used. can do. The "bending die" can be manufactured in a short time and has the advantages of low cost, so it is suitable for small-scale production, but it has the drawback of poor durability, so the "engraving die" is suitable for mass production over a long period of time. Is suitable. In the present invention, the "engraving mold" is more suitable for heating the mold to control it at a predetermined temperature and for applying uniform high-frequency energy to the plastic molded product.

【００１９】図１は、カッター７を配設した金型２およ
びヒータ６により加熱され最適な温度に制御された下板
３を有する高周波ウエルダー１を用いて、成形物４と成
形物５を本発明の方法により高周波誘電加熱して融着す
る工程を示す説明図である。（１）は、金型２と下板３
の間に成形物４と成形物５を介在させる工程を示す。
（２）は、金型２と下板３により成形物４と成形物５を
所定の圧力に加圧し、所定の高周波出力で所定のウエル
ド時間、高周波誘電加熱して、接着する工程を示す。
（３）は、融着後、金型２と下板３を離し、製品を取り
出す工程を示す。８は接着部を示す。（１）〜（３）の
工程を繰り返して連続的にプラスチックの高周波誘電加
熱による接着を行う。FIG. 1 shows a mold 2 provided with a cutter 7 and a high-frequency welder 1 having a lower plate 3 heated by a heater 6 and controlled to an optimum temperature. It is explanatory drawing which shows the process of high frequency dielectric heating and fusion bonding by the method of invention. (1) is a mold 2 and a lower plate 3
The step of interposing the molded product 4 and the molded product 5 between the steps is shown.
(2) shows a step of pressurizing the molded product 4 and the molded product 5 by the mold 2 and the lower plate 3 to a predetermined pressure, and high-frequency dielectric heating at a predetermined high-frequency output for a predetermined weld time to bond them.
(3) shows a step of separating the mold 2 and the lower plate 3 after the fusion bonding and taking out the product. Reference numeral 8 indicates an adhesive portion. By repeating the steps (1) to (3), the plastic is continuously bonded by high-frequency dielectric heating.

【００２０】図２は、インソールの製造に用いる金型２
の例を示す。図３〜図８に、本発明の方法により製造し
た製品の例を示す。図３は図２に示す金型を用いて製造
したインソール、図４は血液バッグ、図５は保冷剤入り
袋、図６は母乳用袋、図７は衣料包装袋、図８は作業衣
（ジャケットとスラックス）をそれぞれ示す。FIG. 2 shows a mold 2 used for manufacturing an insole.
For example: 3 to 8 show examples of products manufactured by the method of the present invention. FIG. 3 is an insole manufactured using the mold shown in FIG. 2, FIG. 4 is a blood bag, FIG. 5 is a bag containing a cooling agent, FIG. 6 is a breast milk bag, FIG. 7 is a clothing packaging bag, and FIG. Jacket and slacks) respectively.

【００２１】[0021]

【実施例】以下本発明を実施例により、具体的に説明す
るが、本発明はこれら実施例によって限定されるもので
はない。 （実施例１）ナイロンフィルム（誘電率３．５、厚さ１
００μｍ）／スチレン系エラストマーフィルム（誘電率
２．６、厚さ１００μｍ）（日本合成ゴム社製ダイナロ
ンアロイＨＳＢＲ（水添スチレン・ブタジエンラバー）
積層フィルム（厚さ２００μｍ）を用いてナイロンフィ
ルム層を内側にして図４に示すナイロン製口部（内径８
ｍｍ）付血液バッグ（２００ｍｍ×１５０ｍｍ）を作っ
た。高周波ウエルド条件を次に示す。接着部８は十分に
接着しており、製品は血液バッグとしての性能を具備し
ていた。 高周波ウエルド条件； 高周波ウエルダー（精電舎電子工業株式会社製：ＫＷ−
４０００ＴＲ、高周波出力４ＫＷ、発振周波数４０．４
６ＭＨｚ±０．５９９％、最大陽極電流１Ａｍｐ） 金型：曲げ型、温度９５±３℃。 下板：温度常温。 ウエルド圧力：４０ｋｇ／ｃｍ2 。 ウエルド時間：３秒。 陽極電流：０．４Ａｍｐ（１秒で０．４Ａｍｐに上昇す
る）EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples. (Example 1) Nylon film (dielectric constant 3.5, thickness 1)
00 μm) / styrene-based elastomer film (dielectric constant 2.6, thickness 100 μm) (Dynalon alloy HSBR (hydrogenated styrene-butadiene rubber) manufactured by Japan Synthetic Rubber Co., Ltd.)
A nylon film portion (inner diameter 8) shown in FIG. 4 with a nylon film layer inside using a laminated film (thickness 200 μm)
mm) blood bag (200 mm × 150 mm) was prepared. The high frequency weld conditions are shown below. The adhesive portion 8 was sufficiently adhered, and the product had the performance as a blood bag. High-frequency weld condition; high-frequency welder (Seidensha Electronics Co., Ltd .: KW-
4000TR, high frequency output 4KW, oscillation frequency 40.4
6 MHz ± 0.599%, maximum anode current 1 Amp) Mold: bending mold, temperature 95 ± 3 ° C. Lower plate: normal temperature. Weld pressure: 40 kg / cm 2 . Weld time: 3 seconds. Anode current: 0.4Amp (up to 0.4Amp in 1 second)

【００２２】（実施例２）スチレン系エラストマーフィ
ルム（誘電率２．６、厚さ１００μｍ）（日本合成ゴム
社製ダイナロンアロイＨＳＢＲ（水添スチレン・ブタジ
エンラバー）を用いて図５に示す保冷剤入りバック（２
００ｍｍ×１５０ｍｍ）を作った。高周波ウエルド条件
を次に示す。接着部８は十分に接着しており、製品は保
冷剤入りバックとしての性能を具備していた。 高周波ウエルド条件； 高周波ウエルダー：実施例１で使用したものと同じ高周
波ウエルダー。 金型：曲げ型、温度常温。 下板：温度６０±３℃。 ウエルド圧力：２０ｋｇ／ｃｍ2 。 ウエルド時間：２秒。 陽極電流：０．２Ａｍｐ（１秒で０．２Ａｍｐに上昇す
る）(Example 2) Styrene-based elastomer film (dielectric constant 2.6, thickness 100 μm) (Dynalon alloy HSBR (hydrogenated styrene-butadiene rubber) manufactured by Japan Synthetic Rubber Co., Ltd.) was used to provide the cooling agent shown in FIG. Entered bag (2
00 mm x 150 mm) was made. The high frequency weld conditions are shown below. The adhesive portion 8 was sufficiently adhered, and the product had a performance as a bag containing a cooling agent. High frequency weld conditions: High frequency welder: The same high frequency welder as that used in Example 1. Mold: bending mold, temperature normal temperature. Lower plate: temperature 60 ± 3 ° C. Weld pressure: 20 kg / cm 2 . Weld time: 2 seconds. Anode current: 0.2Amp (increases to 0.2Amp in 1 second)

【００２３】（実施例３）ポリオレフィン系共重合体
（エチレン・メチルメタクリレート共重合体、商品名：
アクリフトＷＫ３０７、住友化学（株）製、エチレン７
５重量％、メチルメタクリレート２５重量％）フィルム
（誘電率２．６、厚さ１００μｍ）を用いて図８に示す
大人用作業衣（ジャケットとスラックス）を作った。高
周波ウエルド条件を次に示す。接着部８は十分に接着し
ており、製品は作業衣としての性能を具備していた。 高周波ウエルド条件； 高周波ウエルダー：実施例１で使用したものと同じ高周
波ウエルダー。 金型：曲げ型、温度５０℃。 下板：温度常温。 ウエルド圧力：２０ｋｇ／ｃｍ2 。 ウエルド時間：２秒。 陽極電流：０．２Ａｍｐ（１秒で０．２Ａｍｐに上昇す
る）(Example 3) Polyolefin copolymer (ethylene / methyl methacrylate copolymer, trade name:
Acryft WK307, Sumitomo Chemical Co., Ltd., ethylene 7
An adult work garment (jacket and slacks) shown in FIG. 8 was made by using a film (dielectric constant 2.6, thickness 100 μm) of 5% by weight and 25% by weight of methyl methacrylate. The high frequency weld conditions are shown below. The adhesive portion 8 was sufficiently adhered, and the product had the performance as work clothes. High frequency weld conditions: High frequency welder: The same high frequency welder as that used in Example 1. Mold: bending mold, temperature 50 ° C. Lower plate: normal temperature. Weld pressure: 20 kg / cm 2 . Weld time: 2 seconds. Anode current: 0.2Amp (increases to 0.2Amp in 1 second)

【００２４】（実施例４）スチレン系エラストマーフィ
ルム（誘電率２．６、厚さ１００μｍ）（日本合成ゴム
社製ダイナロンアロイＨＳＢＲ（水添スチレン・ブタジ
エンラバー）を用いて図６に示す母乳用袋（２００ｍｍ
×１５０ｍｍ）を作った。高周波ウエルド条件を次に示
す。接着部８は十分に接着しており、製品は母乳用袋と
しての性能を具備していた。 高周波ウエルド条件； 高周波ウエルダー：実施例１で使用したものと同じ高周
波ウエルダー。 金型：曲げ型、温度６５±３℃。 下板：温度常温。 ウエルド圧力：２０ｋｇ／ｃｍ2 。 ウエルド時間：２秒。 陽極電流：０．２Ａｍｐ（１秒で０．２Ａｍｐに上昇す
る）(Example 4) Styrene-based elastomer film (dielectric constant 2.6, thickness 100 μm) (Dynalon alloy HSBR (hydrogenated styrene-butadiene rubber) manufactured by Japan Synthetic Rubber Co., Ltd.) for breast milk as shown in FIG. Bag (200 mm
X 150 mm) was made. The high frequency weld conditions are shown below. The adhesive portion 8 was sufficiently adhered, and the product had a performance as a bag for breast milk. High frequency weld conditions: High frequency welder: The same high frequency welder as that used in Example 1. Mold: bending mold, temperature 65 ± 3 ° C. Lower plate: normal temperature. Weld pressure: 20 kg / cm 2 . Weld time: 2 seconds. Anode current: 0.2Amp (increases to 0.2Amp in 1 second)

【００２５】（実施例５）プロピレン系ブロック共合体
（住友化学社製）８０重量％、スチレン系エラストマー
［日本合成ゴム社製ダイナロンアロイＨＳＢＲ（水添ス
チレン・ブタジエンラバー）］２０重量％からなるフィ
ルム（誘電率２．３、厚さ１００μｍ）を用いて図７に
示す衣料包装袋（１００ｍｍ×２００ｍｍ）を作った。
高周波ウエルド条件を次に示す。接着部８は十分に接着
しており、下記のように従来のＰＶＣからなる製品と比
較した結果、本発明の方法による製品は衣料包装袋とし
ての性能を十分具備していた。 高周波ウエルド条件； 高周波ウエルダー：実施例１で使用したものと同じ高周
波ウエルダー。 金型：曲げ型、温度１２０℃。 下板：温度常温。 ウエルド圧力：５０ｋｇ／ｃｍ2 。 ウエルド時間：５秒。 陽極電流：０．７Ａｍｐ（１秒で０．７Ａｍｐに上昇す
る） 衣料包装袋の試験結果（対応するＪＩＳの試験方法に準じて試験した）； 測定項目 ＰＶＣ製衣料包装袋 実施例５の衣料包装袋 シール強度（Kg/15mm) ３．３ ２．３ ヘイズ値(%) １．３ ０．９ 光沢(%) １４７ １３６ 衝撃強度(Kg・cm) ２３．７ ＞３０ 貫孔強度(Kg) １．３ ０．５ 引裂強度(g)(MD/TD) ８５／８２ ７９／８３ 引張破断強度(Kg/cm2)(MD/TD) ３２７／２７８ ２０２／１９４ 引張伸度(%)(MD/TD) ２７７／２９４ ６４５／７０８ ヤング率( ×103Kg/cm2)(MD/TD) ２．１２／２．０１ １．７７／１．８２(Example 5) 80% by weight of a propylene block copolymer (manufactured by Sumitomo Chemical Co., Ltd.) and 20% by weight of a styrene elastomer [Dynaron Alloy HSBR (hydrogenated styrene / butadiene rubber) manufactured by Japan Synthetic Rubber Co., Ltd.] A clothing packaging bag (100 mm × 200 mm) shown in FIG. 7 was made using the film (dielectric constant 2.3, thickness 100 μm).
The high frequency weld conditions are shown below. The adhesive portion 8 is sufficiently adhered, and as a result of comparison with a conventional product made of PVC as described below, the product of the method of the present invention has sufficient performance as a clothing packaging bag. High frequency weld conditions: High frequency welder: The same high frequency welder as that used in Example 1. Mold: bending mold, temperature 120 ° C. Lower plate: normal temperature. Weld pressure: 50 kg / cm 2 . Weld time: 5 seconds. Anode current: 0.7Amp (rises to 0.7Amp in 1 second) Test result of clothing packaging bag (tested according to the corresponding JIS test method); Measurement item PVC clothing packaging bag Clothing packaging of Example 5 Bag Seal strength (Kg / 15mm) 3.3 2.3 Haze value (%) 1.3 0.9 Gloss (%) 147 136 Impact strength (Kg · cm) 23.7> 30 Through-hole strength (Kg) 1 3 0.5 Tear strength (g) (MD / TD) 85/82 79/83 Tensile breaking strength (Kg / cm 2 ) (MD / TD) 327/278 202/194 Tensile elongation (%) (MD / TD) 277/294 645/708 Young's modulus (× 10 3 Kg / cm 2 ) (MD / TD) 2.12 / 2.01 1.77 / 1.82

【００２６】（比較例１）実施例１において金型の温度
を６０℃、５０℃、４０℃あるいは常温とした以外は実
施例１と同様にして血液バッグを作った。接着部８は十
分に接着しておらず製品にならなかった。Comparative Example 1 A blood bag was prepared in the same manner as in Example 1 except that the temperature of the mold was changed to 60 ° C., 50 ° C., 40 ° C. or room temperature. The adhesive portion 8 was not sufficiently adhered and did not become a product.

【００２７】（比較例２）実施例１においてウエルド圧
力を２０ｋｇ／ｃｍ2 とした以外は実施例１と同様にし
て血液バッグを作った。接着部は十分に接着しておらず
製品にならなかった。Comparative Example 2 A blood bag was prepared in the same manner as in Example 1 except that the weld pressure was 20 kg / cm 2 . The bonded part was not sufficiently bonded and did not become a product.

【００２８】（比較例３）実施例１においてウエルド時
間を１秒とした以外は実施例１と同様にして血液バッグ
を作った。接着部８は十分に接着しておらず製品になら
なかった。(Comparative Example 3) A blood bag was prepared in the same manner as in Example 1 except that the weld time was changed to 1 second. The adhesive portion 8 was not sufficiently adhered and did not become a product.

【００２９】（比較例４）実施例１において陽極電流を
０．２Ａｍｐ（１秒で０．２Ａｍｐに上昇する）とした
以外は実施例１と同様にして血液バッグを作った。接着
部８は十分に接着しておらず製品にならなかった。Comparative Example 4 A blood bag was prepared in the same manner as in Example 1 except that the anode current in Example 1 was 0.2 Amp (increased to 0.2 Amp in 1 second). The adhesive portion 8 was not sufficiently adhered and did not become a product.

【００３０】（比較例５）実施例２において下板の温度
を４０℃あるいは常温とした以外は実施例２と同様にし
て保冷剤入りバッグを作った。接着部８は十分に接着し
ておらず製品にならなかった。(Comparative Example 5) A bag containing a cooling agent was prepared in the same manner as in Example 2 except that the temperature of the lower plate was set to 40 ° C or room temperature. The adhesive portion 8 was not sufficiently adhered and did not become a product.

【００３１】（比較例６）実施例３において金型の温度
を常温とした以外は実施例３と同様にして作業衣（ジャ
ケットとスラックス）を作った。接着部８は十分に接着
しておらず製品にならなかった。Comparative Example 6 Working clothes (jacket and slacks) were made in the same manner as in Example 3 except that the temperature of the mold was room temperature. The adhesive portion 8 was not sufficiently adhered and did not become a product.

【００３２】（比較例７）実施例４において金型の温度
を５０℃、４０℃あるいは常温とした以外は実施例４と
同様にして母乳用袋を作った。接着部８は十分に接着し
ておらず製品にならなかった。Comparative Example 7 A breast milk bag was made in the same manner as in Example 4 except that the temperature of the mold in Example 4 was changed to 50 ° C., 40 ° C. or room temperature. The adhesive portion 8 was not sufficiently adhered and did not become a product.

【００３３】（比較例８）実施例５において金型の温度
を１００℃、８０℃あるいは常温とした以外は実施例５
と同様にして衣料包装袋を作った。接着部８は十分に接
着しておらず製品にならなかった。(Comparative Example 8) Example 5 except that the temperature of the mold in Example 5 was 100 ° C, 80 ° C or room temperature.
I made a clothing packaging bag in the same way. The adhesive portion 8 was not sufficiently adhered and did not become a product.

【００３４】[0034]

【発明の効果】本発明の方法により、ポリオレフィン樹
脂などの、構成要素としてハロゲン元素を含まないプラ
スチックに対して鉄や炭素などを配合したり、あるいは
成形物間に鉄や炭素などを配合した接着層を介在させる
ことなく、ポリオレフィン樹脂などの成形物を高周波誘
電加熱により容易に接着することができる。EFFECT OF THE INVENTION According to the method of the present invention, a resin such as a polyolefin resin which does not contain a halogen element as a constituent is blended with iron, carbon or the like, or iron or carbon is blended between molded products. A molded product such as a polyolefin resin can be easily adhered by high frequency dielectric heating without interposing a layer.

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

【図１】 本発明の方法により高周波加熱して接着する
工程を示す説明図である。FIG. 1 is an explanatory view showing a process of high-frequency heating and bonding by the method of the present invention.

【図２】 金型の例を示す斜視図である。FIG. 2 is a perspective view showing an example of a mold.

【図３】 本発明の方法により製造したインソールの説
明図である。FIG. 3 is an explanatory view of an insole manufactured by the method of the present invention.

【図４】 本発明の方法により製造した血液バッグの説
明図である。FIG. 4 is an explanatory diagram of a blood bag manufactured by the method of the present invention.

【図５】 本発明の方法により製造した保冷剤入りバッ
グの説明図である。FIG. 5 is an explanatory view of a bag containing a cooling agent produced by the method of the present invention.

【図６】 本発明の方法により製造した母乳用袋の説明
図である。FIG. 6 is an explanatory view of a bag for breast milk produced by the method of the present invention.

【図７】 本発明の方法により製造した衣料包装袋の説
明図である。FIG. 7 is an explanatory view of a clothing packaging bag manufactured by the method of the present invention.

【図８】 本発明の方法により製造した作業衣の説明図
である。FIG. 8 is an explanatory view of a work garment manufactured by the method of the present invention.

【符号の説明】[Explanation of symbols]

１ 高周波ウエルダー ２ 金型 ３ 下板 ４、５ 成形物 ６ ヒータ ７ カッター ８ 接着部 1 High frequency welder 2 Mold 3 Lower plate 4, 5 Molded product 6 Heater 7 Cutter 8 Adhesive part

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 7:00 23:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location B29L 7:00 23:00

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 構成要素としてハロゲン元素を含まず、
誘電率２．３以上のプラスチックの成形物同志、あるい
は該成形物と、構成要素としてハロゲン元素を含まず、
誘電率２．３以上の他のプラスチックの成形物とを高周
波誘電加熱により接着する方法において、高周波ウエル
ダーの金型および／または下板を加熱して、プラスチッ
クの融点以下であって高周波誘電加熱により接着可能な
温度に制御することを特徴とする高周波誘電加熱による
プラスチックの接着法。1. A halogen element is not included as a constituent element,
Molded products of plastics having a dielectric constant of 2.3 or more, or the molded product, and containing no halogen element as a constituent element,
In a method of adhering a molded product of another plastic having a dielectric constant of 2.3 or more by high-frequency dielectric heating, the mold and / or the lower plate of the high-frequency welder is heated to a temperature lower than the melting point of the plastic by high-frequency dielectric heating. A method for adhering plastics by high-frequency dielectric heating, which is characterized by controlling the temperature at which adhesion is possible. 【請求項２】 圧力および／またはウエルド時間および
／または高周波出力を高周波誘電加熱により接着可能な
範囲に制御することを特徴とする請求項１記載の高周波
誘電加熱によるプラスチックの接着法。2. The method for adhering a plastic by high-frequency dielectric heating according to claim 1, wherein the pressure and / or the weld time and / or the high-frequency output is controlled within a range in which it can be adhered by high-frequency dielectric heating. 【請求項３】 加熱されていない金型あるいは下板を冷
却することを特徴とする請求項１あるいは請求項２記載
の高周波誘電加熱によるプラスチックの接着法。3. The method for adhering plastic by high frequency dielectric heating according to claim 1, wherein the mold or the lower plate which is not heated is cooled. 【請求項４】 成形物がフィルム、シートあるいはパイ
プである請求項１ないし請求項３記載の高周波誘電加熱
によるプラスチックの接着法。4. The method for adhering plastic by high frequency dielectric heating according to claim 1, wherein the molded product is a film, a sheet or a pipe. 【請求項５】 プラスチックが、ポリオレフィン樹脂、
ポリアミド樹脂、ポリエステル樹脂である請求項１ない
し請求項４記載の高周波誘電加熱によるプラスチックの
接着法。5. The plastic is a polyolefin resin,
The method for adhering plastic by high frequency dielectric heating according to claim 1, which is a polyamide resin or a polyester resin.
JP21072094A 1994-08-12 1994-08-12 Bonding of plastics by high frequency dielectric heating Expired - Lifetime JP2782415B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21072094A JP2782415B2 (en) 1994-08-12 1994-08-12 Bonding of plastics by high frequency dielectric heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21072094A JP2782415B2 (en) 1994-08-12 1994-08-12 Bonding of plastics by high frequency dielectric heating

Publications (2)

Publication Number Publication Date
JPH0852802A true JPH0852802A (en) 1996-02-27
JP2782415B2 JP2782415B2 (en) 1998-07-30

Family

ID=16593988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21072094A Expired - Lifetime JP2782415B2 (en) 1994-08-12 1994-08-12 Bonding of plastics by high frequency dielectric heating

Country Status (1)

Country Link
JP (1) JP2782415B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0945247A3 (en) * 1998-03-25 2001-04-11 Idemitsu Petrochemical Co., Ltd. Sealing of polyolefin-based resin, and sealed article of the resin
ES2186521A1 (en) * 2001-02-07 2003-05-01 Escudero Plasticas Procedure for obtaining plastic covers for office products involves welding of two external sheets of cover of internal structural component in two parallel lines of welds, between which an all-round flap is formed

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108468A (en) * 1976-03-09 1977-09-10 Hiraoka Shokusen Method of adhesion of themoplastic polymer by fusion using high frfqvency wave
JPS55589U (en) * 1979-06-25 1980-01-05
JPS63183830A (en) * 1987-01-27 1988-07-29 Kyoei Sangyo Kk Method for high frequency welding
JPS63242627A (en) * 1987-03-31 1988-10-07 Popii Sangyo Kk High-frequency welder
JPS63288738A (en) * 1987-05-20 1988-11-25 Tonen Sekiyukagaku Kk High-frequency fusion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108468A (en) * 1976-03-09 1977-09-10 Hiraoka Shokusen Method of adhesion of themoplastic polymer by fusion using high frfqvency wave
JPS55589U (en) * 1979-06-25 1980-01-05
JPS63183830A (en) * 1987-01-27 1988-07-29 Kyoei Sangyo Kk Method for high frequency welding
JPS63242627A (en) * 1987-03-31 1988-10-07 Popii Sangyo Kk High-frequency welder
JPS63288738A (en) * 1987-05-20 1988-11-25 Tonen Sekiyukagaku Kk High-frequency fusion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0945247A3 (en) * 1998-03-25 2001-04-11 Idemitsu Petrochemical Co., Ltd. Sealing of polyolefin-based resin, and sealed article of the resin
ES2186521A1 (en) * 2001-02-07 2003-05-01 Escudero Plasticas Procedure for obtaining plastic covers for office products involves welding of two external sheets of cover of internal structural component in two parallel lines of welds, between which an all-round flap is formed

Also Published As

Publication number Publication date
JP2782415B2 (en) 1998-07-30

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