JPH0596626A - Joint structure of plastic film and plastic film for joint - Google Patents

Joint structure of plastic film and plastic film for joint

Info

Publication number
JPH0596626A
JPH0596626A JP3285731A JP28573191A JPH0596626A JP H0596626 A JPH0596626 A JP H0596626A JP 3285731 A JP3285731 A JP 3285731A JP 28573191 A JP28573191 A JP 28573191A JP H0596626 A JPH0596626 A JP H0596626A
Authority
JP
Japan
Prior art keywords
joint
plastic film
resin
joining
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3285731A
Other languages
Japanese (ja)
Inventor
Shu Mochizuki
周 望月
Kazumi Azuma
一美 東
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.)
Nitto Denko Corp
Original Assignee
Nitto Denko Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nitto Denko Corp filed Critical Nitto Denko Corp
Priority to JP3285731A priority Critical patent/JPH0596626A/en
Publication of JPH0596626A publication Critical patent/JPH0596626A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/5042—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 covering both elements 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
    • B29C66/01—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
    • B29C66/11—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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/304—Joining through openings in an intermediate part of the article
    • 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
    • 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
    • B29C65/48—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
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835—Heat curing 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
    • 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
    • B29C66/9141—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 temperature
    • 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
    • B29C66/924—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
    • B29C66/92—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
    • 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
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/954—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the thickness of the parts to be joined

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To provide a joint-structure having an excellent joint strength of the joint part and capable of being joined relatively readily, and a joint-plastic film for use in this joint. CONSTITUTION:A plurality of openings are provided on the joint-end part of a plastic film 1, and resin 3 is filled successively on the front and rear surface and above mentioned openings of the plastic film 1 in order to be integrated into a joint-part 2. When the resin 3 is made into a film-shape and laminated on the openings and the proximity thereto, a plastic film for joint having an excellent workability can be obtained.

Description

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

【０００１】[0001]

【産業上の利用分野】本発明はプラスチックフィルム同
士の接合構造、および接合に用いられる接合用プラスチ
ックフィルムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining structure of plastic films and a joining plastic film used for joining.

【０００２】[0002]

【従来の技術】従来、プラスチックフィルムを接合する
場合には、接着剤をフィルム間に介在させて接合した
り、プラスチックフィルム自体が熱によって融着性を有
する場合には加熱、加圧する方法が採用されている。し
かしながら、接着剤を介在させた接合方法では接合する
プラスチックフィルムの種類によっては充分な接着力が
得られず、接合部に屈曲や機械的応力が加わった場合に
接合部が剥離する恐れがあり、使用目的によっては接合
信頼性が充分であるとは云い難いものである。一方、熱
による融着によって接合する方法では接合できるプラス
チックフィルムが限られ、特に耐熱性が高く接着性に乏
しいポリイミド樹脂からなるフィルムには上記何れの方
法も適用しがたい。2. Description of the Related Art Conventionally, when a plastic film is joined, an adhesive is interposed between the films for joining, and when the plastic film itself has a fusion property due to heat, a method of heating and pressing is adopted. Has been done. However, in the joining method with an adhesive interposed, sufficient adhesive force cannot be obtained depending on the type of the plastic film to be joined, and the joined portion may be peeled off when bending or mechanical stress is applied to the joining portion, Depending on the purpose of use, it cannot be said that the joining reliability is sufficient. On the other hand, in the method of joining by fusion by heat, the plastic films that can be joined are limited, and it is difficult to apply any of the above methods to a film made of a polyimide resin having high heat resistance and poor adhesiveness.

【０００３】[0003]

【発明が解決しようとする課題】本発明は上記従来の接
合における問題点を一挙に解決すべく検討したものであ
って、プラスチックフィルムの種類に制限されず比較的
容易に接合でき、しかも接合部分の機械的強度に優れた
接合構造を提供することを目的とする。また、このよう
な接合構造を得るための接合用プラスチックフィルムを
提供することを他の目的とするものである。DISCLOSURE OF THE INVENTION The present invention has been made to solve all the problems in the above-mentioned conventional joining, and it is possible to join relatively easily without being limited by the kind of the plastic film, and the joining portion It is an object of the present invention to provide a joint structure having excellent mechanical strength. Another object is to provide a joining plastic film for obtaining such a joining structure.

【０００４】[0004]

【課題を解決するための手段】本発明者らは上記目的を
達成すべく鋭意検討を重ねた結果、プラスチックフィル
ムの接合部に複数の開口部を設け、この開口部を利用し
て接合用樹脂による接合を行なった結果、優れた接合強
度を有する接合構造が得られることを見い出し、本発明
を完成するに至った。Means for Solving the Problems The inventors of the present invention have conducted extensive studies to achieve the above object, and as a result, provided a plurality of openings in a joint portion of a plastic film, and used the joint resin by utilizing the openings. As a result of performing the joining according to, it was found that a joining structure having excellent joining strength was obtained, and the present invention was completed.

【０００５】即ち、本発明は少なくとも一方のプラスチ
ックフィルムの接合部に複数の開口部が設けられ、接合
されるプラスチックフィルムの表裏面および上記開口部
には樹脂が連続状態で介在してプラスチックフィルム同
士が接合されていることを特徴とするプラスチックフィ
ルムの接合構造の提供、および少なくとも一方のプラス
チックフィルムの接合部に複数の開口部が設けられ、開
口部およびその近傍に接合用の樹脂フィルムが積層され
ていることを特徴とする接合用プラスチックフィルムの
提供に関するものである。That is, according to the present invention, a plurality of openings are provided in the joint portion of at least one plastic film, and the resin is interposed between the front and back surfaces of the plastic film to be joined and the opening portion in a continuous state so that the plastic films are joined together. Is provided, and a plurality of openings are provided in the bonding portion of at least one of the plastic films, and a resin film for bonding is laminated in the opening and its vicinity. The present invention relates to the provision of a plastic film for joining, which is characterized in that

【０００６】以下、本発明の接合構造および接合用プラ
スチックフィルムについて、図面を用いて説明する。The joining structure and the joining plastic film of the present invention will be described below with reference to the drawings.

【０００７】図１は本発明の接合構造を得るための工程
を示す接合部近傍の断面図である。図１（Ａ）は接合す
るプラスチックフィルム１の接合部２に開口部（貫通
孔）を設けた状態を示す断面図であり、図１（Ｂ）に示
すように、接合部２に開口部（貫通孔）を設けたプラス
チックフィルム１および１’を突き合わせて接合部２の
表裏面（上下）に樹脂３のフィルムを積層する。次に、
この状態で加熱、加圧することによって樹脂３は流動
し、開口部（貫通孔）に充填されて表裏面の樹脂３は連
続状態として一体化され、図１（Ｃ）に示すような本発
明の接合構造を得ることができる。このように上下の樹
脂３が一体化することによって、アンカー作用を生じて
接合強度が向上する。なお、本発明においてはプラスチ
ックフィルム１の材質は特に限定されないが、従来の接
合方法では接合できないようなポリイミドフィルムを用
いることが望ましい。FIG. 1 is a cross-sectional view of the vicinity of a joint showing a process for obtaining the joint structure of the present invention. FIG. 1 (A) is a cross-sectional view showing a state in which an opening (through hole) is provided in the joint portion 2 of the plastic film 1 to be joined, and as shown in FIG. The plastic films 1 and 1'provided with through holes) are butted against each other and a film of the resin 3 is laminated on the front and back surfaces (upper and lower) of the joint portion 2. next,
By heating and pressurizing in this state, the resin 3 flows, is filled in the openings (through holes), and the resins 3 on the front and back surfaces are integrated as a continuous state, and the resin of the present invention as shown in FIG. A joint structure can be obtained. By thus integrating the upper and lower resins 3 with each other, an anchoring action occurs and the joint strength is improved. In the present invention, the material of the plastic film 1 is not particularly limited, but it is desirable to use a polyimide film that cannot be bonded by the conventional bonding method.

【０００８】上記プラスチックフィルム１の接合部２に
設ける開口部は、機械的加工やレーザー加工、光加工、
化学エッチング加工などの方法によって貫通孔や端部切
り欠き形状に形成することができる。これらのうち、微
細な加工性などの点からはレーザー加工、特に紫外線レ
ーザー加工が好ましいものである。また、開口部の大き
さは数μｍ以上、好ましくはプラスチックフィルム１の
厚みの０．５倍以上とする。開口部の形状が貫通孔の場
合、１０μｍ〜２ｍｍ、特に２５〜５００μｍ程度の直
径の円もしくは一辺の長さとする方形とすることが好ま
しい。上記開口部の接合部２に占める割合（開口率）
は、接合部２の面積の０．０１〜８０％、好ましくは５
〜２５％程度にすることが、後述する樹脂３の充填後の
接合部２の強度の向上の点から好ましい。The opening provided in the joining portion 2 of the plastic film 1 is mechanically processed, laser processed, light processed,
It can be formed into a through hole or an end cutout shape by a method such as chemical etching. Among these, laser processing, particularly ultraviolet laser processing is preferable from the viewpoint of fine workability. The size of the opening is several μm or more, preferably 0.5 times or more the thickness of the plastic film 1. When the shape of the opening is a through hole, it is preferably a circle having a diameter of 10 μm to 2 mm, particularly 25 to 500 μm, or a square having one side length. Ratio of the above-mentioned opening to the joint 2 (opening ratio)
Is 0.01 to 80% of the area of the joint portion 2, preferably 5
It is preferably about 25% from the viewpoint of improving the strength of the joint portion 2 after filling with the resin 3 described later.

【０００９】本発明において上記接合部２に用いる樹脂
３としては、常温で溶融するが硬化後に流動性を失うよ
うな、所謂Ｂステージ状態の樹脂や、高温で熱溶融する
樹脂を用いることができ、熱硬化性でも熱可塑性の樹脂
でもよい。具体的にはエポキシ系樹脂、フェノキシ系樹
脂、ウレタン系樹脂、ポリエチレン系樹脂、ポリエステ
ル系樹脂、ポリアミド系樹脂、ポリイミド系樹脂、ポリ
カーボネート系樹脂、フッ素系樹脂、シリコーン系樹脂
などを単独もしくは二種類以上混合して用いることがで
きる。また、接合部に可撓性を付与する必要がある場合
は、スチレン−ブタジエン共重合体ゴムやフッ素系重合
体ゴムなどのゴム成分を適宜混合することもできる。In the present invention, as the resin 3 used for the joint portion 2, a so-called B-stage resin which melts at room temperature but loses fluidity after curing, or a resin which melts at high temperature can be used. It may be a thermosetting or thermoplastic resin. Specifically, epoxy resin, phenoxy resin, urethane resin, polyethylene resin, polyester resin, polyamide resin, polyimide resin, polycarbonate resin, fluorine resin, silicone resin, etc., alone or in combination of two or more. It can be mixed and used. Further, when it is necessary to impart flexibility to the joint portion, a rubber component such as styrene-butadiene copolymer rubber or fluoropolymer rubber can be appropriately mixed.

【００１０】上記樹脂３は溶融状態で接合部分に注入す
ることもできるが、作業性の点からはプラスチックフィ
ルム１の厚みの１０〜２００％、好ましくは２５〜１０
０％程度の厚みのフィルム状にし、プラスチックフィル
ム１の開口部およびその近傍に積層して接合用のプラス
チックフィルムとすることが好ましい。厚みが１０％に
満たない場合は、樹脂３が充分に開口部を満たさずに樹
脂３の一体化ができない場合があり、また、２００％を
超える厚みでは、厚みによる効果の増大が期待できず経
済的でない。例えば、フィルム状の樹脂３を用いて本発
明の接合構造を得る場合、図１（Ｂ）に示すようにフィ
ルム状の樹脂３をプラスチックフィルム１の両面から挟
着するように形成し、これを加熱（５０〜５００℃、好
ましくは１００〜３５０℃）、加圧（０．５〜５００ｋ
ｇ／ｃｍ2 、好ましくは２〜２０ｋｇ／ｃｍ2 ）を任意
の時間（１０秒〜１時間、好ましくは１分〜３０分）施
して樹脂３を流動させて開口部に充填、一体化させる。The resin 3 can be poured into the joint portion in a molten state, but from the viewpoint of workability, it is 10 to 200% of the thickness of the plastic film 1, preferably 25 to 10%.
It is preferable to form a film having a thickness of about 0% and laminate the plastic film 1 in the opening and its vicinity to form a plastic film for bonding. If the thickness is less than 10%, the resin 3 may not sufficiently fill the opening and the resin 3 may not be integrated, and if the thickness exceeds 200%, the effect due to the thickness cannot be expected to increase. Not economical. For example, when the bonding structure of the present invention is obtained using the film-shaped resin 3, the film-shaped resin 3 is formed so as to be sandwiched from both sides of the plastic film 1 as shown in FIG. Heating (50-500 ° C, preferably 100-350 ° C), pressurization (0.5-500k)
g / cm 2 , preferably 2 to 20 kg / cm 2 ) is applied for an arbitrary time (10 seconds to 1 hour, preferably 1 minute to 30 minutes) to cause the resin 3 to flow and be filled into the opening to be integrated.

【００１１】図２〜図５は本発明の接合構造の他の例を
示す接合部近傍の断面図である。図２はプラスチックフ
ィルム１および１’の接合部分を重ね合わせて接合構造
とした接合部近傍の断面図である。また、図２のように
両端部に形成した各開口部を重ね合わせ時に位置合わせ
しなくとも、プラスチックフィルム１を重ね合わせる際
に樹脂３を接合部２の表裏面だけでなく、フィルム間に
介在させることによって、正確な位置合わせをせずに接
合構造を得ることができるのである。2 to 5 are sectional views showing the vicinity of the joint portion showing another example of the joint structure of the present invention. FIG. 2 is a cross-sectional view of the vicinity of a joint portion in which the joint portions of the plastic films 1 and 1'are overlapped to form a joint structure. Further, as shown in FIG. 2, even if the openings formed at both ends are not aligned at the time of stacking, the resin 3 is interposed not only between the front and back surfaces of the joint 2 but also between the films when the plastic films 1 are stacked. By doing so, it is possible to obtain a bonded structure without performing accurate alignment.

【００１２】図３はプラスチックフィルム１の接合部２
に開口部を設けると共に、全厚みの１０〜４０％程度に
まで厚みを薄くする、所謂ハーフエッチング加工を施
し、このように加工したプラスチックフィルム１および
１’を接合したものであり、接合部２の段差（厚み）を
小さくすることができる。FIG. 3 shows the joint portion 2 of the plastic film 1.
The plastic film 1 and 1'which are processed by the so-called half-etching process, in which the opening is provided and the thickness is reduced to about 10 to 40% of the total thickness, are joined together. The step (thickness) can be reduced.

【００１３】また、図４や図５に図示するようにハーフ
エッチング加工をプラスチックフィルム１の接合部２の
両面に施すことによって、接合部２における厚みをプラ
スチックフィルム１の厚みと略同等にすることができ
る。Further, as shown in FIGS. 4 and 5, half-etching is applied to both sides of the joint portion 2 of the plastic film 1 so that the thickness of the joint portion 2 becomes substantially equal to the thickness of the plastic film 1. You can

【００１４】図６は本発明の接合構造を得るための各種
開口部を設けたプラスチックフィルム１の平面図であ
り、（Ａ）〜（Ｃ）に示すように開口部形状はスリット
状や小孔状、微細孔状、端部切り欠き状などとすること
ができる。FIG. 6 is a plan view of the plastic film 1 provided with various openings for obtaining the joint structure of the present invention. As shown in FIGS. 6A to 6C, the shapes of the openings are slits or small holes. The shape may be a shape, a fine hole shape, an end cutout shape, or the like.

【００１５】なお、図示省略したが、本発明においてプ
ラスチックフィルムを接合する場合、必ずしも各図に示
すように両方のプラスチックフィルム（１および１’）
に開口部を設ける必要はなく、一方のプラスチックフィ
ルムが樹脂との接着性が良好であったり、熱融着性を有
する場合には開口部を設けなくてもよいことは云うまで
もない。Although not shown in the drawings, when joining plastic films in the present invention, both plastic films (1 and 1 ') are not always required as shown in the drawings.
It is needless to say that it is not necessary to provide an opening in the plastic film, and the opening may not be provided in the case where one of the plastic films has a good adhesive property with the resin or has a heat fusion property.

【００１６】[0016]

【実施例】以下、本発明の実施例を示し、さらに具体的
に説明する。EXAMPLES Examples of the present invention will be shown below and described more specifically.

【００１７】実施例１ ２枚のポリイミドフィルム（厚み２５μｍ）の端部に２
５μｍφの貫通孔を開口率２０％となるように形成し、
Ｂステージ状態のエポキシ樹脂フィルム（厚み２０μ
ｍ）を開口部に積層して本発明の接合用プラスチックフ
ィルムを作製し、この２類のポリイミドフィルムを図２
に示す接合構造に接合した。接合条件は温度１８０℃、
圧力２ｋｇ／ｃｍ2 、処理時間２分とした。得られた接
合部の引張強度は２５℃、引張速度５０ｍｍ／分で５．
２ｋｇ／ｃｍであった。Example 1 Two polyimide films (thickness: 25 μm) were provided at the end of each film.
A through hole of 5 μmφ is formed to have an opening ratio of 20%,
Epoxy resin film in B-stage (20μ thick
m) is laminated in the opening to produce the plastic film for bonding of the present invention.
It joined to the joining structure shown in. The bonding conditions are a temperature of 180 ℃,
The pressure was 2 kg / cm 2 and the treatment time was 2 minutes. The tensile strength of the obtained joint was 25 ° C. and the tensile speed was 50 mm / min.
It was 2 kg / cm.

【００１８】実施例２ 実施例１において接合に用いる樹脂をポリエーテルイミ
ドとし、接合条件を温度３２０℃、圧力１８ｋｇ／ｃｍ
2 、処理時間１０分とした以外は、実施例１と同様にし
て図３に示す接合構造に接合した。得られた接合部の引
張強度は２５℃、引張速度５０ｍｍ／分で６．２ｋｇ／
ｃｍであった。Example 2 The resin used for bonding in Example 1 was polyetherimide, and the bonding conditions were a temperature of 320 ° C. and a pressure of 18 kg / cm.
2. Bonded to the bonding structure shown in FIG. 3 in the same manner as in Example 1 except that the treatment time was 10 minutes. The tensile strength of the obtained joint was 25 ° C. and the tensile speed was 6.2 mm / min at a tensile speed of 50 mm / min.
It was cm.

【００１９】実施例３ 実施例１において接合するプラスチックフィルムをポリ
エチレンテレフタレートフィルム（厚み２５μｍ）と
し、接合条件を温度１８０℃、圧力１ｋｇ／ｃｍ2 、処
理時間２分とした以外は、実施例１と同様にして図４に
示す接合構造に接合した。得られた接合部の引張強度は
２５℃、引張速度５０ｍｍ／分で５．７ｋｇ／ｃｍであ
った。Example 3 Example 1 was repeated except that the plastic film to be joined in Example 1 was a polyethylene terephthalate film (thickness: 25 μm), the joining conditions were a temperature of 180 ° C., a pressure of 1 kg / cm 2 , and a treatment time of 2 minutes. Similarly, it joined to the joining structure shown in FIG. The tensile strength of the obtained joint portion was 25 ° C. and the tensile speed was 5.7 kg / cm at a tensile speed of 50 mm / min.

【００２０】比較例 ２枚のポリイミドフィルム（厚み２５μｍ）を接合する
ために、ポリエーテルイミド樹脂フィルム（厚み２０μ
ｍ）を用いて、図７に示す接合構造に接合した。接合条
件は温度３２０℃、圧力２０ｋｇ／ｃｍ2 、処理時間３
０分とした。得られた接合部の引張強度は２５℃、引張
速度５０ｍｍ／分で１．２ｋｇ／ｃｍであった。Comparative Example To bond two polyimide films (thickness: 25 μm), a polyetherimide resin film (thickness: 20 μm)
m) was used to join to the joining structure shown in FIG. The joining conditions are temperature 320 ° C., pressure 20 kg / cm 2 , treatment time 3
It was set to 0 minutes. The tensile strength of the obtained joint portion was 25 ° C., and was 1.2 kg / cm at a pulling speed of 50 mm / min.

【００２１】[0021]

【発明の効果】以上のように、本発明の接合構造は接合
されるプラスチックフィルムの端部接合部に開口部を設
けて樹脂を充填し、表裏面の樹脂を一体化させているの
で、接合部の強度が向上する。特に、従来の接合方法で
は接合し難かったポリイミドなどのフィルムを接合する
場合に有用である。As described above, according to the joining structure of the present invention, the plastic film to be joined has an opening at the end joining portion and is filled with resin, so that the resins on the front and back surfaces are integrated. The strength of the part is improved. In particular, it is useful when joining films such as polyimide, which are difficult to join by the conventional joining method.

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

【図１】 本発明の接合構造を得るための工程を示す接
合部近傍の断面図である。FIG. 1 is a cross-sectional view of the vicinity of a joint showing a process for obtaining a joint structure of the present invention.

【図２】 本発明の接合構造の他の例を示す接合部近傍
の断面図である。FIG. 2 is a cross-sectional view of the vicinity of a joint showing another example of the joint structure of the present invention.

【図３】 本発明の接合構造の他の例を示す接合部近傍
の断面図である。FIG. 3 is a cross-sectional view in the vicinity of a joint showing another example of the joint structure of the present invention.

【図４】 本発明の接合構造の他の例を示す接合部近傍
の断面図である。FIG. 4 is a cross-sectional view of the vicinity of a joint showing another example of the joint structure of the present invention.

【図５】 本発明の接合構造の他の例を示す接合部近傍
の断面図である。FIG. 5 is a cross-sectional view in the vicinity of a joint showing another example of the joint structure of the present invention.

【図６】 本発明の接合構造を得るための各種開口部を
設けたプラスチックフィルムの平面図である。FIG. 6 is a plan view of a plastic film provided with various openings for obtaining the joining structure of the present invention.

【図７】 比較例にて得た接合構造の接合部近傍の断面
図である。FIG. 7 is a cross-sectional view in the vicinity of a joint of a joint structure obtained in a comparative example.

【符号の説明】[Explanation of symbols]

１ プラスチックフィルム ２ 接合部 ３ 樹脂 1 plastic film 2 joint 3 resin

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 少なくとも一方のプラスチックフィルム
の接合部に複数の開口部が設けられ、接合されるプラス
チックフィルムの表裏面および上記開口部には樹脂が連
続状態で介在してプラスチックフィルム同士が接合され
ていることを特徴とするプラスチックフィルムの接合構
造。1. A plurality of openings are provided in a joint portion of at least one of the plastic films, and the plastic films are joined to each other with a resin interposed between the front and back surfaces of the plastic film to be joined and the opening portion in a continuous state. A structure for joining plastic films, which is characterized in that 【請求項２】 開口部が貫通孔または端部切り欠きであ
る請求項１記載のプラスチックフィルムの接合構造。2. The plastic film joining structure according to claim 1, wherein the opening is a through hole or an end notch. 【請求項３】 少なくとも一方のプラスチックフィルム
の接合部に複数の開口部が設けられ、開口部およびその
近傍に接合用の樹脂フィルムが積層されていることを特
徴とする接合用プラスチックフィルム。3. A plastic film for bonding, characterized in that a plurality of openings are provided in a bonding portion of at least one plastic film, and a resin film for bonding is laminated in the opening and its vicinity.
JP3285731A 1991-10-04 1991-10-04 Joint structure of plastic film and plastic film for joint Pending JPH0596626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3285731A JPH0596626A (en) 1991-10-04 1991-10-04 Joint structure of plastic film and plastic film for joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3285731A JPH0596626A (en) 1991-10-04 1991-10-04 Joint structure of plastic film and plastic film for joint

Publications (1)

Publication Number Publication Date
JPH0596626A true JPH0596626A (en) 1993-04-20

Family

ID=17695315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3285731A Pending JPH0596626A (en) 1991-10-04 1991-10-04 Joint structure of plastic film and plastic film for joint

Country Status (1)

Country Link
JP (1) JPH0596626A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015007474A (en) * 2013-05-31 2015-01-15 ザ・ボーイング・カンパニーＴｈｅＢｏｅｉｎｇ Ｃｏｍｐａｎｙ Joint assembly and method of assembling the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015007474A (en) * 2013-05-31 2015-01-15 ザ・ボーイング・カンパニーＴｈｅＢｏｅｉｎｇ Ｃｏｍｐａｎｙ Joint assembly and method of assembling the same

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