JPH0995649A - Heat-sensitive adhesive sheet and adhesion activation - Google Patents
Heat-sensitive adhesive sheet and adhesion activationInfo
- Publication number
- JPH0995649A JPH0995649A JP7276877A JP27687795A JPH0995649A JP H0995649 A JPH0995649 A JP H0995649A JP 7276877 A JP7276877 A JP 7276877A JP 27687795 A JP27687795 A JP 27687795A JP H0995649 A JPH0995649 A JP H0995649A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- sensitive adhesive
- adhesive sheet
- coating film
- 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.)
- Withdrawn
Links
Landscapes
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、加熱ロール等の直接的
な加熱手段を用いることなく接着活性できる感熱接着シ
ートに関し、さらに詳しくは、感熱接着剤皮膜上にさら
に近赤外線吸収剤皮膜を積層した構成を基材面に有する
感熱接着シートとその接着活性方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sensitive adhesive sheet that can be adhesively activated without using a direct heating means such as a heating roll. More specifically, a near-infrared absorber film is laminated on a heat-sensitive adhesive film. The present invention relates to a heat-sensitive adhesive sheet having the above structure on the surface of a base material and an adhesive activation method thereof.
【０００２】[0002]
【従来の技術】従来の感熱接着シートは、基材面に施さ
れた感熱接着剤皮膜はインパクト加熱方式にて接着活性
化せられるものであった。すなわち、シート基材面に感
熱接着剤皮膜が形成されてなる感熱接着シートにおける
当該接着剤皮膜の活性化は、通常、感熱接着シートと被
着体（あるいは感熱接着シート同士）とを当該接着剤皮
膜を介して対接させながら加熱ロール間を通過させ、当
該接着剤皮膜を加熱溶融させることでなされるものであ
った。2. Description of the Related Art In a conventional heat-sensitive adhesive sheet, a heat-sensitive adhesive film formed on a surface of a base material can be adhesively activated by an impact heating system. That is, activation of the adhesive film in a heat-sensitive adhesive sheet having a heat-sensitive adhesive film formed on the surface of a sheet base material is usually performed by connecting the heat-sensitive adhesive sheet and an adherend (or heat-sensitive adhesive sheet) with each other. The adhesive film was made to pass through between the heating rolls while being in contact with each other through the film to heat and melt the adhesive film.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の感熱接着シートの接着活性方法にあっては、
加熱ロールが、感熱接着剤皮膜部分だけでなく、感熱接
着シートの全面を包含しながら加熱押圧するため、その
面上に施された印刷インキやトナーを用いてなされた印
刷・印字部をも溶融させることになり、その結果、印刷
・印字汚れが発生したり、場合によっては判読不能にな
ることもあった。また、感熱接着剤皮膜の全てが一度に
活性化するため、必要な部分のみを接着することはでき
なかった。However, in such a conventional adhesive activation method for a heat-sensitive adhesive sheet,
The heating roll heats and presses not only the heat-sensitive adhesive film portion but also the entire surface of the heat-sensitive adhesive sheet, so that the printing / printing part made by using the printing ink or toner applied on that surface is also melted. As a result, printing and stains may occur, and in some cases, it may be unreadable. Further, since all of the heat-sensitive adhesive film is activated at one time, it was not possible to bond only the necessary part.
【０００４】そこで、部分的に加熱押圧する小型の加熱
ロール組を使用する方法が発案されたが、この方法にあ
っても、必要な熱量を加えるためには、ある程度のロー
ル容積は必要であるため、印刷・印字部に全く影響を与
えないということはなく、あるいは部分的に加熱押圧す
ると感熱接着シートと被接着体に乾燥歪みが生じる不都
合もあった。Therefore, a method of using a small set of heating rolls which is partially heated and pressed has been proposed, but even in this method, a certain roll volume is necessary to add a necessary amount of heat. Therefore, there is no influence on the printing / printing area at all, or there is a disadvantage that drying distortion occurs in the heat-sensitive adhesive sheet and the adherend when partially heated and pressed.
【０００５】したがって、本発明は、このような従来の
感熱接着シートの接着活性方法の欠点を解消し、印刷イ
ンキやトナーによる印刷・印字部、および感熱接着シー
トや被着体に全く影響をおよぼさず、任意部分の感熱接
着剤皮膜を容易に、しかも選択的に接着活性できるよう
にするノンインパクト加熱方式の接着活性方法の提供を
課題とするものである。Therefore, the present invention solves the drawbacks of the conventional adhesive activation method of the heat-sensitive adhesive sheet, and has no influence on the printing / printing portion by the printing ink or toner, the heat-sensitive adhesive sheet and the adherend. It is an object of the present invention to provide a non-impact heating type adhesive activation method that allows the heat-sensitive adhesive film of an arbitrary portion to be easily and selectively activated without being twisted.
【０００６】[0006]
【課題を解決するための手段】本発明者等は、この課題
を解決するための手段として、感熱接着シートの基材面
に施された感熱接着剤皮膜に、さらに近赤外領域の波長
を選択的に吸収する近赤外線吸収剤皮膜を積層させるこ
とにより、当該吸収剤皮膜が選択的に吸収する近赤外領
域の当該所定の波長を有するレーザ光を当該吸収剤皮膜
に照射することにより、当該吸収剤皮膜を発熱させ、同
時に感熱接着剤皮膜を加熱溶融せしめて接着活性できる
ことを見い出し本発明を想到した。Means for Solving the Problem As a means for solving this problem, the inventors of the present invention set a wavelength in the near-infrared region on a heat-sensitive adhesive film applied to a substrate surface of a heat-sensitive adhesive sheet. By laminating a near-infrared absorber film that selectively absorbs, by irradiating the absorber film with laser light having the predetermined wavelength in the near-infrared region that the absorber film selectively absorbs, The present invention has been conceived by finding that the absorbent coating can be heated and, at the same time, the heat-sensitive adhesive coating can be heated and melted to activate the adhesive.
【０００７】すなわち、本発明は、基材面の所定部に、
感熱接着剤皮膜が形成されてなる感熱接着シートにであ
って、当該感熱接着剤皮膜上に、さらに近赤外領域の波
長を選択的に吸収する近赤外線吸収剤皮膜が積層されて
なる感熱接着シートを提供する。That is, according to the present invention, the predetermined portion of the substrate surface is
A heat-sensitive adhesive sheet having a heat-sensitive adhesive film formed thereon, further comprising a near-infrared absorber film that selectively absorbs wavelengths in the near-infrared region laminated on the heat-sensitive adhesive film. Provide the seat.
【０００８】さらに、本発明は、前記近赤外線吸収剤皮
膜に対し、当該吸収剤皮膜が選択的に吸収する前記近赤
外領域の所定の波長を有するレーザ光を照射して、当該
吸収剤皮膜を発熱させることにより、前記感熱接着剤皮
膜を加熱溶融せしめて接着活性させることを特徴とする
前記感熱接着シートの接着活性方法を提供する。Further, according to the present invention, the near-infrared absorbing film is irradiated with a laser beam having a predetermined wavelength in the near-infrared region, which is selectively absorbed by the absorbing film, to thereby obtain the absorbing film. A method for activating the adhesiveness of the heat-sensitive adhesive sheet is provided, in which the heat-sensitive adhesive film is heated and melted to activate the adhesiveness by heating.
【０００９】[0009]
【作用】本発明の感熱接着シートおよびその接着活性方
法によれば、感熱接着剤皮膜上に、さらに近赤外領域の
所定の波長を選択的に吸収する近赤外線吸収剤皮膜が積
層されてなるため、当該吸収剤皮膜が選択的に吸収する
近赤外領域の当該所定の波長を有するレーザ光を照射す
ることにより、当該吸収剤皮膜を発熱させ、同時に感熱
接着剤皮膜を加熱溶融せしめて接着活性させる。According to the heat-sensitive adhesive sheet and the adhesive activation method of the present invention, the heat-sensitive adhesive film is further laminated with a near-infrared absorber film that selectively absorbs a predetermined wavelength in the near-infrared region. Therefore, by irradiating with a laser beam having the predetermined wavelength in the near-infrared region that the absorbent film selectively absorbs, the absorbent film is caused to generate heat, and at the same time, the heat-sensitive adhesive film is heated and melted to bond. Activate.
【００１０】[0010]
【実施例】以下、本発明の感熱接着シートおよびその接
着活性方法について、好適な実施例と添付図面に基づ
き、具体的に詳述する。なお、ここにおいて、図１は本
発明の感熱接着シートの概略的斜視図、図２は図１のＡ
−Ａ線断面図、図３は図１の感熱接着シートの接着活性
方法の概略的説明図である。EXAMPLES The heat-sensitive adhesive sheet of the present invention and its adhesive activation method will be described in detail below with reference to the preferred examples and the accompanying drawings. Here, FIG. 1 is a schematic perspective view of the heat-sensitive adhesive sheet of the present invention, and FIG. 2 is A of FIG.
3 is a cross-sectional view taken along the line A, and FIG. 3 is a schematic explanatory diagram of an adhesive activation method for the heat-sensitive adhesive sheet of FIG.
【００１１】図１および図２に示す感熱接着シート１
は、シート基材２裏面３には、所望のレイアウトで、感
熱接着剤皮膜Ａとその上面に近赤外線吸収剤皮膜Ｂが積
層状態で塗布形成され、一方、その表面４には、宛先情
報、記入欄、注意書等、所定の印刷６が施されてなるも
のであって、感熱接着剤皮膜Ａが接着活性された後に、
挿入紙（図示せず）を内在させながら所定の折り線５で
折り込んで接着させ、封筒形態となるものである。The heat-sensitive adhesive sheet 1 shown in FIGS. 1 and 2.
Is a heat-sensitive adhesive film A and a near-infrared absorbent film B formed on the upper surface of the sheet substrate 2 in a desired layout on the back surface 3 of the sheet substrate 2. On the other hand, on the front surface 4, destination information, Predetermined printing 6 such as entry fields, cautionary notes, etc. is performed, and after the heat-sensitive adhesive film A is activated,
An insert paper (not shown) is folded inside along a predetermined folding line 5 and adhered to form an envelope form.
【００１２】この感熱接着剤皮膜Ａを構成する感熱接着
剤とは、熱接着性樹脂を主組成物とし、必要に応じて粘
着付与剤や可塑剤等を添加してなる感熱接着剤であっ
て、好ましくは、ディレードタック性を有するものであ
る。具体的には、エチレン−エチルアクリル酸共重合
体、エチレン−メチルメタクリル酸共重合体、ポリ酢酸
ビニル、酢酸ビニル−エチレン共重合体、酸エチル共重
合体、スチレン−ブタジエン共重合体、ポリアミド樹
脂、ポリスチレン樹脂、ポリウレア樹脂等の熱接着性樹
脂、ロジンのグリセリンエステル、ペンタエリスリトー
ル変性ロジン、石油樹脂、インデン樹脂、エチルセルロ
ース、αメチルスリレン−ビニルトルエン共重合体、テ
ンぺル油重合体等の粘着付与剤、オルト−フタル酸ジヘ
キシル、オルト−フタル酸ジヒドロアビエチル、オルト
−フタル酸ジフェニル、イソフタル酸ジメチル、安息香
酸ステルロース、ジ安息香酸エチレングリコール、トリ
安息香酸トリメチロールエタン等の可塑剤、および必要
に応じ、ワックス、酸化防止剤、乾燥剤、潤滑剤等の添
加剤を添加してなるものである。The heat-sensitive adhesive constituting the heat-sensitive adhesive film A is a heat-sensitive adhesive which comprises a heat-adhesive resin as a main composition and, if necessary, a tackifier or a plasticizer. , And preferably has a delayed tack property. Specifically, ethylene-ethyl acrylic acid copolymer, ethylene-methyl methacrylic acid copolymer, polyvinyl acetate, vinyl acetate-ethylene copolymer, acid ethyl copolymer, styrene-butadiene copolymer, polyamide resin Adhesion of heat-adhesive resin such as polystyrene resin and polyurea resin, glycerin ester of rosin, pentaerythritol-modified rosin, petroleum resin, indene resin, ethyl cellulose, α-methylthrylene-vinyltoluene copolymer, temper oil polymer, etc. Agents, dihexyl ortho-phthalate, dihydroabietyl ortho-phthalate, diphenyl ortho-phthalate, dimethyl isophthalate, stellulose benzoate, ethylene glycol dibenzoate, trimethylolethane tribenzoate, and other plasticizers, and if necessary According to wax, antioxidant Agents, drying agents, those obtained by adding an additive such as a lubricant.
【００１３】このような感熱接着剤は、従来公知の塗布
手段、例えば、フレキソ方式、ノズルコート方式等によ
り任意の基材、例えば、上質紙、コート紙等の用紙類、
ポリエチレン、ポリプロピレン、ポリエチレンフタレー
ト、ポリ塩化ビニル等のプラスチックフィルム類、ある
いは合成紙等の面上の所定部に塗布され、先ず、感熱接
着剤皮膜Ａが形成されるものである。Such a heat-sensitive adhesive can be applied to any base material such as high-quality paper or coated paper by a conventionally known coating means such as a flexo method or a nozzle coating method.
The heat-sensitive adhesive film A is first formed by applying it to a predetermined portion on the surface of a plastic film such as polyethylene, polypropylene, polyethylene phthalate, or polyvinyl chloride, or synthetic paper.
【００１４】この感熱接着剤皮膜Ａ上にさらに塗布形成
される近赤外線吸収剤皮膜Ｂとは、発熱作用を効率よく
具現するためには、０.８〜３μｍの近赤外領域の波長
を吸収する性質を有する近赤外線吸収剤から選択された
ものが最も好ましい。このような性質を有する近赤外線
吸収剤とは、例えば、ミアニン色素、チオニールニッケ
ル錯体、ビス−〔ミス１,２トルイル〕エチレン−１,２
ジチオレートニッケル、ビス−〔１クロロ−３,４ジチ
オレート〕ニッケル・テトラブチルアンモニウム等の金
属錯体が挙げられ、これらは０.８〜３μｍの近赤外領
域における所定の波長に最大吸収特性を有するものであ
って、具体的には、日本感光色素研究所（株）製のＮＫ
−１２５（７４９ｎｍ）、ＮＫ−７４７（７７８ｎ
ｍ）、ＮＫ−１０４（７９４ｎｍ）、ＮＫ−４２７（８
０３ｎｍ）、ＮＫ−１２３（８１１ｎｍ）、ＮＫ−１１
４４（８１５ｎｍ）、ＮＫ−１７４８（８５９ｎｍ）、
ＮＫ−１１６１（９２９ｎｍ）、三井東圧ファイン
（株）製の近赤外線吸収剤ＰＡ−１００５（８５０ｎ
ｍ）、ＰＡ−１００３（８８０ｎｍ）、ＰＡ−１００６
（８７０ｎｍ）ＰＡ−１００２（８９５ｎｍ）、ＰＡ−
１００１（１１００ｎｍ）等が好適に利用できる。ま
た、８３０ｎｍに最大吸収波長を有するジエチルアミノ
ナフトールスクアリリウム、ジメチルアミノナフトール
スクアリリウム等のスクアリウム色素も利用でき、さら
に、ポリメチン系色素、（ジ）インモニウム系色素、フ
タロシアニン系色素、トリアリルメタン系色素、ナフト
キノン系色素等も好適に利用できる。これらの近赤外線
吸収剤は、可視光部の領域では最大吸収波長の１％程度
の吸収率しか示さず、可視光部をほぼ透明に保ったまま
近赤外領域の吸収のみを高めることができる。The near-infrared absorber film B which is further applied and formed on the heat-sensitive adhesive film A absorbs a wavelength in the near-infrared region of 0.8 to 3 μm in order to efficiently realize the heat generation effect. Those selected from near-infrared absorbers having the property of being most preferable. The near-infrared absorber having such properties includes, for example, myanine dye, thionyle nickel complex, bis- [Miss 1,2 toluyl] ethylene-1,2.
Metal complexes such as dithiolate nickel and bis- [1chloro-3,4 dithiolate] nickel tetrabutylammonium are mentioned, and these have maximum absorption characteristics at a predetermined wavelength in the near infrared region of 0.8 to 3 μm. Specifically, NK manufactured by Japan Photosensitive Dye Research Institute Co., Ltd.
-125 (749 nm), NK-747 (778n
m), NK-104 (794 nm), NK-427 (8
03 nm), NK-123 (811 nm), NK-11
44 (815 nm), NK-1748 (859 nm),
NK-1161 (929 nm), near infrared absorber PA-1005 (850n manufactured by Mitsui Toatsu Fine Co., Ltd.)
m), PA-1003 (880 nm), PA-1006
(870 nm) PA-1002 (895 nm), PA-
1001 (1100 nm) and the like can be preferably used. In addition, squarylium dyes such as diethylaminonaphthol squarylium and dimethylaminonaphthol squarylium having a maximum absorption wavelength at 830 nm can also be used, and further polymethine dyes, (di) immonium dyes, phthalocyanine dyes, triallylmethane dyes, naphthoquinones. A system dye or the like can also be suitably used. These near-infrared absorbers show an absorption rate of only about 1% of the maximum absorption wavelength in the visible light region, and can enhance only the absorption in the near-infrared region while keeping the visible light region almost transparent. .
【００１５】これらの近赤外線吸収剤には、単独で塗布
形成できるものもあるが、通常は、近赤外線を透過する
バインダーに溶解させて感熱接着剤皮膜Ａ面上に、従来
公知の塗布手段、例えば、感熱接着剤皮膜の塗布手段と
同様の方法、すなわち、フレキソ方式、ノズルコート方
式等により塗布され、近赤外線吸収皮膜Ｂが形成される
ものである。Although some of these near-infrared absorbers can be formed by coating alone, they are usually dissolved in a binder that transmits near-infrared rays and then applied on the surface of the heat-sensitive adhesive film A by a conventionally known coating means, For example, the near-infrared absorbing film B is formed by applying the same method as that for applying the heat-sensitive adhesive film, that is, a flexo method, a nozzle coating method, or the like.
【００１６】次に、図３に基づき、感熱接着シート１に
おける感熱接着剤皮膜Ａの接着活性方法について述べ
る。感熱接着シート１は、シート搬送路における所定位
置でレーザ光を受けるものであって、このレーザ光照射
は、以下に述べる如く、レーザ光源、光路変更用の多面
体鏡（ポリゴンミラー）および単面鏡、集光レンズ、制
御部を主要素とする装置によりなされる。Next, the method for activating the adhesion of the heat-sensitive adhesive film A in the heat-sensitive adhesive sheet 1 will be described with reference to FIG. The heat-sensitive adhesive sheet 1 receives laser light at a predetermined position in the sheet conveying path, and this laser light irradiation is performed by a laser light source, a polyhedral mirror (polygon mirror) for changing the optical path, and a single-sided mirror, as described below. , A condensing lens, and a controller as main elements.
【００１７】感熱接着シート１の搬送方向に直交する当
該感熱接着シート１面上の感熱接着剤皮膜Ａと近赤外線
吸収皮膜Ｂとの積層（以下、単に「積層」と称す）に対
するレーザ照射は、レーザ光源Ｓａからのレーザ光の光
路に、駆動系に連結してなる回転自在な多面体鏡ＰＭを
配置して、レーザ光源Ｓａからのレーザ光を、搬送方向
に対して直角状に高速スキャニングするように所定位置
に間欠的に光路変更せしめる機構による。また、当該多
面体鏡ＰＭから所定位置へのレーザ光照射中の焦点距離
補正のための集光レンズＬａを配置することで、「積
層」への焦点距離を絶えず一定とするものである。さら
に、制御部Ｃは、感熱接着シート１の接着位置を知らせ
るためにシート面の所定部に印刷形成されたタイミング
マークＴの光学的検出手段Ｄと連結し、予めインプット
された照射位置の情報により、レーザ光源Ｓａおよびレ
ーザ光源Ｓｂ（後述）のレーザ光照射のタイミングと多
面体鏡ＰＭおよび単面鏡Ｍ（後述）の駆動を制御するも
のである。Laser irradiation of a laminate (hereinafter, simply referred to as "laminate") of the heat-sensitive adhesive film A and the near-infrared absorbing film B on the surface of the heat-sensitive adhesive sheet 1 orthogonal to the conveying direction of the heat-sensitive adhesive sheet 1 is performed by laser irradiation. A rotatable polyhedral mirror PM connected to a drive system is arranged in the optical path of the laser light from the laser light source Sa so that the laser light from the laser light source Sa is scanned at a high speed at a right angle to the transport direction. By a mechanism that intermittently changes the optical path to a predetermined position. Further, by arranging the condenser lens La for correcting the focal length during the irradiation of the laser beam from the polyhedral mirror PM to the predetermined position, the focal length to the “stack” is constantly made constant. Further, the control unit C is connected to the optical detection means D of the timing mark T printed on a predetermined portion of the sheet surface in order to notify the bonding position of the heat-sensitive adhesive sheet 1, and the information on the irradiation position inputted in advance is used. The laser light source Sa and the laser light source Sb (described later) control the timing of laser light irradiation and the driving of the polygon mirror PM and the single-sided mirror M (described later).
【００１８】一方、感熱接着シート１の搬送方向に平行
する当該感熱接着シート１面上の積層に対するレーザ照
射は、レーザ光源Ｓｂからのレーザ光の光路に、光路変
更用の単面鏡Ｍを配置して、レーザ光源Ｓｂからのレー
ザ光を、搬送方向に対して平行に高速スキャニングする
ように所定位置に光路変更せしめる機構による。そし
て、前述の如く、レーザ光照射中の焦点距離補正のため
の集光レンズＬｂを配置し、「積層」への焦点距離を絶
えず一定とするものである。さらに、前述の制御部Ｃを
共有されレーザ光源Ｓｂのレーザ光照射のタイミングが
制御される。On the other hand, in the laser irradiation of the stack on the surface of the heat-sensitive adhesive sheet 1 parallel to the conveying direction of the heat-sensitive adhesive sheet 1, the single-sided mirror M for changing the optical path is arranged in the optical path of the laser light from the laser light source Sb. Then, the optical path of the laser light from the laser light source Sb is changed to a predetermined position so as to perform high-speed scanning parallel to the transport direction. Then, as described above, the condensing lens Lb for correcting the focal length during the laser light irradiation is arranged, and the focal length to the “stack” is constantly made constant. Further, the timing of laser light irradiation of the laser light source Sb is controlled by sharing the control unit C described above.
【００１９】レーザ光源Ｓａ、Ｓｂは、好ましくは、
０.８〜３μｍの近赤外領域における近赤外線吸収剤皮
膜Ｂが選択的に吸収する所定の波長を有するレーザ光を
照射することで、当該吸収剤皮膜Ｂを発熱させると同時
に、感熱接着剤皮膜Ａを加熱溶融せしめて接着活性させ
るものである。このような近赤外領域の近赤外波長を有
するレーザ光としては、半導体レーザ、ヘリウム・ネオ
ンレーザ、ヨウ素レーザ、ＹＡＧ・ガラスレーザ等が該
当するが、とりわけ、レーザ光の主要な波長が近赤外線
領域の７００〜１５００ｎｍにあり、出力が１０ｍＷ〜
１Ｗ程度のものが好ましく、特に、半導体レーザの中に
そのような条件を満たすものがあり、照射装置自体もコ
ンパクトに構成されているので好適に利用できる。例え
ば、本実施例の場合、近赤外線吸収剤皮膜Ｂの吸収波長
が８５０ｎｍにあるため、波長８５０ｎｍ、出力２０ｍ
Ｗの半導体レーザを用いて感熱接着剤皮膜Ａを接着活性
させることができた。The laser light sources Sa and Sb are preferably
By irradiating a laser beam having a predetermined wavelength that the near-infrared absorbent coating B in the near-infrared region of 0.8 to 3 μm selectively absorbs, the absorbent coating B is heated and at the same time, the heat-sensitive adhesive. The coating A is heated and melted to activate the adhesion. Laser light having a near-infrared wavelength in such a near-infrared region corresponds to a semiconductor laser, a helium / neon laser, an iodine laser, a YAG / glass laser, and the like. It is in the infrared region of 700-1500 nm, and the output is 10 mW-
It is preferably about 1 W, and in particular, some semiconductor lasers satisfy such a condition, and the irradiation device itself is also compactly configured, so that it can be suitably used. For example, in the case of this example, since the absorption wavelength of the near infrared ray absorbent film B is 850 nm, the wavelength is 850 nm and the output is 20 m.
It was possible to activate the heat-sensitive adhesive film A by using the W semiconductor laser.
【００２０】[0020]
【発明の効果】本発明の感熱接着シートは、感熱接着剤
皮膜上に、さらに近赤外領域の波長を選択的に吸収する
近赤外線吸収剤皮膜が積層されてなるため、当該吸収剤
皮膜が選択的に吸収する前記近赤外領域の所定の波長を
有するレーザ光を照射することにより、当該吸収剤皮膜
を発熱させ、同時に感熱接着剤皮膜を加熱溶融せしめて
接着活性させることができ、印刷インキやトナーによる
印刷・印字部、および感熱接着シートや被着体に全く影
響をおよぼさず、感熱接着剤皮膜を容易に、しかも選択
的に接着活性できるものである。The heat-sensitive adhesive sheet of the present invention comprises a heat-sensitive adhesive film and a near-infrared absorbent film that selectively absorbs wavelengths in the near-infrared region. By irradiating with a laser beam having a predetermined wavelength in the near-infrared region that selectively absorbs, the absorbent coating can be heated, and at the same time, the heat-sensitive adhesive coating can be heated and melted to activate adhesion, and printing. It has no effect on the printing / printing area by ink or toner, the heat-sensitive adhesive sheet and the adherend, and can easily and selectively activate the heat-sensitive adhesive film.
【図１】 本発明の感熱接着シートの概略的斜視図。FIG. 1 is a schematic perspective view of a heat-sensitive adhesive sheet of the present invention.
【図２】 図１のＡ−Ａ線断面図。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】 図１の感熱接着シートの接着活性方法の概略
的説明図。FIG. 3 is a schematic explanatory view of an adhesive activation method for the heat-sensitive adhesive sheet of FIG.
１ 感熱接着シート ２ シート基材 ３ シート裏面 ４ シート表面 Ａ 感熱接着剤皮膜 Ｂ 近赤外線吸収剤皮膜 Ｓａ、Ｓｂ レーザ光源 ＰＭ 多面体鏡 Ｍ 単面鏡 Ｌａ 集光レンズ Ｃ 制御部 Ｔ タイミングマーク Ｄ 光学的検出手段 1 Heat-sensitive adhesive sheet 2 Sheet base material 3 Sheet back surface 4 Sheet surface A Heat-sensitive adhesive film B Near-infrared absorber film Sa, Sb Laser light source PM Polyhedral mirror M Single-sided mirror La Condensing lens C Control unit T Timing mark D Optical Detection means
Claims (2)
成されてなる感熱接着シートにであって、当該感熱接着
剤皮膜上に、さらに近赤外領域の波長を選択的に吸収す
る近赤外線吸収剤皮膜が積層されてなる感熱接着シー
ト。1. A heat-sensitive adhesive sheet having a heat-sensitive adhesive film formed on a predetermined portion of a base material surface, wherein the heat-sensitive adhesive film further selectively absorbs wavelengths in the near infrared region. A heat-sensitive adhesive sheet formed by laminating a near-infrared absorber film.
収剤皮膜が選択的に吸収する前記近赤外領域の所定の波
長を有するレーザ光を照射して、当該吸収剤皮膜を発熱
させることにより、前記感熱接着剤皮膜を加熱溶融せし
めて接着活性させることを特徴とする請求項１記載の感
熱接着シートの接着活性方法。2. The near-infrared absorber film is irradiated with laser light having a predetermined wavelength in the near-infrared region, which the absorber film selectively absorbs, to heat the absorber film. 2. The method for activating the adhesion of the heat-sensitive adhesive sheet according to claim 1, wherein the heat-sensitive adhesive film is heated and melted to activate the adhesion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7276877A JPH0995649A (en) | 1995-09-30 | 1995-09-30 | Heat-sensitive adhesive sheet and adhesion activation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7276877A JPH0995649A (en) | 1995-09-30 | 1995-09-30 | Heat-sensitive adhesive sheet and adhesion activation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0995649A true JPH0995649A (en) | 1997-04-08 |
Family
ID=17575654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7276877A Withdrawn JPH0995649A (en) | 1995-09-30 | 1995-09-30 | Heat-sensitive adhesive sheet and adhesion activation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0995649A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0978813A2 (en) * | 1998-08-05 | 2000-02-09 | Günter Jenner | Microphone wind-protection device and method of fabrication |
| WO2001085862A1 (en) * | 2000-05-09 | 2001-11-15 | Advanced Photonics Technologies Ag | Method and arrangement for producing a bonded composite structure |
| WO2001046298A3 (en) * | 1999-12-22 | 2002-05-30 | Vantico Ag | Surface treatment of polymer or metal |
| JP2006121795A (en) * | 2004-10-20 | 2006-05-11 | Nitto Shinko Kk | Method of manufacturing interphase insulation paper for motor |
| JP2006143876A (en) * | 2004-11-19 | 2006-06-08 | Seiko Precision Inc | Adhesive process, adhesion apparatus and compound product |
| JP2006143838A (en) * | 2004-11-18 | 2006-06-08 | Seiko Precision Inc | Adhesive process, adhesion apparatus and compound product |
| JP2006184464A (en) * | 2004-12-27 | 2006-07-13 | Canon Inc | Lens fixing method and optical equipment |
| JP2006184780A (en) * | 2004-12-28 | 2006-07-13 | Canon Inc | Optical member fixing method and optical equipment |
| JP2007221034A (en) * | 2006-02-20 | 2007-08-30 | Fujitsu Ltd | Film sticking apparatus and method therefor and manufacturing method of semiconductor device |
| JP2008253516A (en) * | 2007-04-04 | 2008-10-23 | Terumo Corp | Catheter |
| US7760446B2 (en) | 2004-12-27 | 2010-07-20 | Canon Kabushiki Kaisha | Method of fixing optical member and optical unit |
| JP2012024681A (en) * | 2010-07-22 | 2012-02-09 | Toppan Printing Co Ltd | Coating method and coating apparatus of solventless type adhesive composition |
| WO2014119565A1 (en) * | 2013-01-31 | 2014-08-07 | 株式会社クレハ | Sealing material of near-infrared ray irradiation type and use thereof, and method for adhering member |
| DE102014201778A1 (en) * | 2014-01-31 | 2015-08-06 | Henkel Ag & Co. Kgaa | Method for bonding with adhesive layers with the aid of a laser |
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1995
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0978813A2 (en) * | 1998-08-05 | 2000-02-09 | Günter Jenner | Microphone wind-protection device and method of fabrication |
| EP0978813A3 (en) * | 1998-08-05 | 2000-11-08 | Günter Jenner | Microphone wind-protection device and method of fabrication |
| US6451148B1 (en) | 1998-08-05 | 2002-09-17 | Günter Jenner | Microphone wind shield and method for production thereof |
| WO2001046298A3 (en) * | 1999-12-22 | 2002-05-30 | Vantico Ag | Surface treatment of polymer or metal |
| WO2001085862A1 (en) * | 2000-05-09 | 2001-11-15 | Advanced Photonics Technologies Ag | Method and arrangement for producing a bonded composite structure |
| JP2006121795A (en) * | 2004-10-20 | 2006-05-11 | Nitto Shinko Kk | Method of manufacturing interphase insulation paper for motor |
| JP4727205B2 (en) * | 2004-10-20 | 2011-07-20 | 日東シンコー株式会社 | Method for producing interphase insulating paper for motor |
| JP2006143838A (en) * | 2004-11-18 | 2006-06-08 | Seiko Precision Inc | Adhesive process, adhesion apparatus and compound product |
| JP2006143876A (en) * | 2004-11-19 | 2006-06-08 | Seiko Precision Inc | Adhesive process, adhesion apparatus and compound product |
| US7907357B2 (en) | 2004-12-27 | 2011-03-15 | Canon Kabushiki Kaisha | Method of fixing optical member and optical unit |
| JP4612837B2 (en) * | 2004-12-27 | 2011-01-12 | キヤノン株式会社 | Lens fixing method and optical apparatus |
| JP2006184464A (en) * | 2004-12-27 | 2006-07-13 | Canon Inc | Lens fixing method and optical equipment |
| US7760446B2 (en) | 2004-12-27 | 2010-07-20 | Canon Kabushiki Kaisha | Method of fixing optical member and optical unit |
| JP2006184780A (en) * | 2004-12-28 | 2006-07-13 | Canon Inc | Optical member fixing method and optical equipment |
| JP4514722B2 (en) * | 2006-02-20 | 2010-07-28 | 富士通セミコンダクター株式会社 | Film pasting method, film pasting apparatus, and semiconductor device manufacturing method |
| JP2007221034A (en) * | 2006-02-20 | 2007-08-30 | Fujitsu Ltd | Film sticking apparatus and method therefor and manufacturing method of semiconductor device |
| JP2008253516A (en) * | 2007-04-04 | 2008-10-23 | Terumo Corp | Catheter |
| JP2012024681A (en) * | 2010-07-22 | 2012-02-09 | Toppan Printing Co Ltd | Coating method and coating apparatus of solventless type adhesive composition |
| WO2014119565A1 (en) * | 2013-01-31 | 2014-08-07 | 株式会社クレハ | Sealing material of near-infrared ray irradiation type and use thereof, and method for adhering member |
| DE102014201778A1 (en) * | 2014-01-31 | 2015-08-06 | Henkel Ag & Co. Kgaa | Method for bonding with adhesive layers with the aid of a laser |
| US10533077B2 (en) | 2014-01-31 | 2020-01-14 | Henkel Ag & Co. Kgaa | Method for bonding using adhesive layers with the aid of a laser |
| JP2017165865A (en) * | 2016-03-16 | 2017-09-21 | 株式会社アイセロ | Thermoplastic adhesive film |
| US10710349B2 (en) | 2016-03-16 | 2020-07-14 | Aicello Corporation | Thermoplastic adhesive film, bonding method and bonded body |
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