JPH09267575A - Laminated film for heat-sensitive stencil printing original paper and heat-sensitive stencil printing original paper - Google Patents
Laminated film for heat-sensitive stencil printing original paper and heat-sensitive stencil printing original paperInfo
- Publication number
- JPH09267575A JPH09267575A JP8081238A JP8123896A JPH09267575A JP H09267575 A JPH09267575 A JP H09267575A JP 8081238 A JP8081238 A JP 8081238A JP 8123896 A JP8123896 A JP 8123896A JP H09267575 A JPH09267575 A JP H09267575A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- laminated film
- film
- sensitive stencil
- stencil printing
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ハロゲンランプ、
キセノンランプ、フラッシュランプなどによる閃光照射
や赤外線照射、レーザー光線等のパルス的照射、あるい
はサーマルヘッド等によって穿孔製版される感熱孔版印
刷原紙に関し、特に穿孔性、製版性に優れた感熱孔版印
刷原紙用積層フィルムおよび感熱孔版印刷原紙を得るも
のである。The present invention relates to a halogen lamp,
Regarding heat-sensitive stencil printing base paper that is perforated and plate-made by flash irradiation such as xenon lamp or flash lamp, infrared irradiation, pulsed irradiation of laser beam, etc., or thermal head, etc. A film and a heat-sensitive stencil printing base paper are obtained.
【０００２】[0002]
【従来の技術】感熱孔版印刷原紙としては、通常感熱孔
版印刷原紙用フィルムと多孔性支持体とを接着剤で貼り
合わせたものが使用され、感熱孔版印刷原紙用フィルム
としては、塩化ビニリデン、ポリエステル、ポリプロピ
レンフィルムなどの熱可塑性フィルムが使用され、多孔
性支持体としては、天然繊維、化学繊維または合成繊維
あるいはこれらを混抄した薄葉紙、不織布、紗等によっ
て構成された多孔性支持体が使用されてきた（例えば、
特開昭５１−２５１３号公報、特開昭５７−１８２４９
５号公報など）。2. Description of the Related Art As a heat-sensitive stencil printing base paper, a film in which a heat-sensitive stencil printing base paper film and a porous support are bonded with an adhesive is usually used. Examples of the heat-sensitive stencil printing base paper film include vinylidene chloride and polyester. , A thermoplastic film such as polypropylene film is used, and as the porous support, a porous support made of natural fiber, chemical fiber or synthetic fiber or thin paper, non-woven fabric, gauze or the like prepared by mixing them has been used. (For example,
JP-A-51-2513, JP-A-57-18249
No. 5 publication).
【０００３】しかしながら、昨今では、印刷物に対して
高い解像度（階調性）が要求されており、特にカラーで
階調性を出すためには、ヘッドに与えるエネルギー、す
なわちヘッドの温度分布を変えることによってフィルム
の穿孔径が変化できることが必要となってきている。そ
のためには、上記した熱可塑性フィルムに対して、与え
るエネルギー範囲を幅広く変化させる必要があり、低エ
ネルギーでは小さく穿孔し、高エネルギーでは大きく穿
孔し、かつ孔が連結せずに独立状態を保持すること（独
立穿孔）が重要である。However, in recent years, high resolution (gradation) is required for printed matter, and in order to obtain gradation in color in particular, the energy given to the head, that is, the temperature distribution of the head is changed. It has become necessary to be able to change the perforation diameter of the film. For that purpose, it is necessary to widely change the energy range to be applied to the above-mentioned thermoplastic film, small holes are perforated at low energy, large holes are perforated at high energy, and the holes are kept independent without being connected. That (independent perforation) is important.
【０００４】また、孔版原紙が温湿度の変化によりカー
ルしないことが必要である。カールが大きくなると、孔
版印刷機内で原紙の搬送性が不良となり、原紙詰まり等
のトラブルが生じる。Further, it is necessary that the stencil sheet does not curl due to changes in temperature and humidity. If the curl becomes large, the stencil printing machine will not be easily conveyed in the stencil printing machine, and problems such as jamming of the stencil will occur.
【０００５】従来、かかる用途に用いるフィルムとして
は、二軸延伸ポリエステルフィルムの熱的性質を規制す
ることによって印刷特性と耐刷性を改善したフィルム
（特開昭６２−２８２９８４号公報）や熱収縮特性を規
定したフィルム（特開昭６２−２８２９８３号公報、特
開昭６３−１６０８９５号公報、特開平１−９７６９１
号公報、特開平１−１６８４９４号公報、特開平２−３
０７７８８号公報）等が提案されている。また、感熱層
と補強層よりなる積層フィルムの感熱層を剥離して多孔
性支持体と貼り合わせる感熱孔版印刷用原紙の製造方法
（特開平６−４８０５９号公報）や感熱層と非接着層よ
りなる二軸延伸積層フィルムの感熱層に多孔性支持体を
貼り合わせた後に非接着層を剥離除去する感熱孔版印刷
用原紙の製造方法（特開昭６３−５３０９７号公報）等
が提案されている。Conventionally, as a film used for such a purpose, a film having improved printing characteristics and printing durability by controlling the thermal properties of a biaxially stretched polyester film (Japanese Patent Laid-Open No. 62-282984) and heat shrinkage. Films with specified characteristics (Japanese Patent Laid-Open No. 62-282983, Japanese Patent Laid-Open No. 63-160895, Japanese Patent Laid-Open No. 1-97691)
Japanese Patent Laid-Open No. 1-168494, Japanese Patent Laid-Open No. 2-3
No. 07788) has been proposed. In addition, a method for producing a heat-sensitive stencil printing base paper in which a heat-sensitive layer of a laminated film composed of a heat-sensitive layer and a reinforcing layer is peeled off and bonded to a porous support (JP-A-6-48059) or a heat-sensitive layer and a non-adhesive layer are used. A method for producing a heat-sensitive stencil printing base paper in which a porous support is bonded to the heat-sensitive layer of the biaxially stretched laminated film and the non-adhesive layer is peeled off (Japanese Patent Laid-Open No. 63-53097) and the like have been proposed. .
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記の
従来技術では、特に低エネルギー領域においての穿孔感
度が十分ではなく、文字印刷及びベタ印刷の印刷鮮明性
が低下するなどの問題があった。However, in the above-mentioned prior art, there is a problem that the perforation sensitivity is not sufficient especially in the low energy region, and the printing sharpness of character printing and solid printing is lowered.
【０００７】本発明は、かかる従来技術の問題点を解決
し、低エネルギーでも穿孔性が良好で、かつエネルギー
レベルの変化に応じた穿孔径を得ることが可能な感熱孔
版印刷原紙用積層フィルム及び耐刷性と耐カール性に優
れた感熱孔版印刷原紙を提供しようとするものである。The present invention solves the problems of the prior art, has a good perforation property even at low energy, and is capable of obtaining a perforation diameter according to a change in energy level, and a laminated film for heat-sensitive stencil printing paper. It is intended to provide a heat-sensitive stencil printing base paper excellent in printing durability and curling resistance.
【０００８】[0008]
【課題を解決するための手段】本発明は、少なくとも２
層以上のフィルムから構成されてなることを特徴とする
感熱孔版印刷原紙用積層フィルム及び少なくとも２層以
上のフィルムから構成されてなる感熱孔版印刷原紙用積
層フィルムに多孔性支持体が接着されてなることを特徴
とする感熱孔版印刷原紙。SUMMARY OF THE INVENTION The present invention provides at least two
A laminated film for heat-sensitive stencil printing paper, characterized by comprising a film of at least two layers, and a porous support adhered to the laminated film for heat-sensitive stencil printing paper, comprising at least two layers This is a heat sensitive stencil printing base paper.
【０００９】着されてなる感熱孔版印刷原紙とするもの
である。A heat-sensitive stencil printing base paper to be worn is used.
【００１０】[0010]
【発明の実施の形態】以下、本発明を詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.
【００１１】本発明の感熱孔版印刷原紙用積層フィルム
を構成するフィルムとしては、例えばポリエステル、ポ
リアミド、ポリプロピレン、ポリエチレン、ポリ塩化ビ
ニル、ポリ塩化ビニリデンまたはその共重合体など従来
公知のものが用いられるが、穿孔感度の点から少なくと
も１層はポリエステルフィルムが好ましく、特に好まし
くは、全てがポリエステルフィルムで構成されるもので
ある。As the film constituting the laminated film for heat sensitive stencil printing base paper of the present invention, conventionally known films such as polyester, polyamide, polypropylene, polyethylene, polyvinyl chloride, polyvinylidene chloride or copolymers thereof can be used. From the standpoint of perforation sensitivity, at least one layer is preferably a polyester film, and particularly preferably all of them are composed of a polyester film.
【００１２】本発明の感熱孔版印刷原紙用積層フィルム
は、少なくとも２層以上から構成される。ここで層構造
とは、いかなる方法で区別できるものであってもよい
が、例えば積層フィルムを断面方向に切り出し電子顕微
鏡で観察した時に、少なくとも２層以上の層に区別でき
るものを言う。ただし、後述した積層の均一性から、好
ましくは５層以下、さらに好ましくは４層以下である。The laminated film for heat-sensitive stencil printing base paper of the present invention comprises at least two layers. Here, the layer structure may be one that can be distinguished by any method, but refers to one that can be distinguished into at least two or more layers, for example, when a laminated film is cut out in the cross-sectional direction and observed with an electron microscope. However, it is preferably 5 layers or less, and more preferably 4 layers or less, in view of the uniformity of lamination described below.
【００１３】本発明の感熱孔版印刷原紙用積層フィルム
を構成する層のうち、いずれか２層の融点の差が５℃以
上であることが好ましい。さらに好ましくは１０℃以
上、より好ましくは２０℃以上である。ここで融点と
は、いかなる方法によっても測定しうるが、例えば、示
差走査熱量計による吸熱曲線のピークの温度より求める
ことができる。Among the layers constituting the laminated film for heat-sensitive stencil printing base paper of the present invention, it is preferable that any two layers have a melting point difference of 5 ° C. or more. It is more preferably 10 ° C or higher, and even more preferably 20 ° C or higher. Here, the melting point can be measured by any method, but can be determined, for example, from the peak temperature of the endothermic curve by a differential scanning calorimeter.
【００１４】本発明の感熱孔版印刷原紙用積層フィルム
の全体の厚さは、製版性や印刷性から好ましくは０．１
〜１０μｍ、さらに好ましくは０．１〜５μｍ、より好
ましくは０．１〜３μｍである。積層フィルムの厚み
は、いかなる方法によっても測定しうるが、例えば、積
層フィルムを断面方向に切り出し電子顕微鏡で厚みの測
定を行う方法等を採用できる。The total thickness of the laminated film for heat-sensitive stencil printing base paper of the present invention is preferably 0.1 in view of plate making property and printability.
The thickness is from 10 to 10 μm, more preferably from 0.1 to 5 μm, still more preferably from 0.1 to 3 μm. The thickness of the laminated film can be measured by any method. For example, a method of cutting the laminated film in the cross-sectional direction and measuring the thickness with an electron microscope can be adopted.
【００１５】本発明の感熱孔版印刷原紙用積層フィルム
に用いられるポリエステルとは、芳香族ジカルボン酸ま
たは脂肪族ジカルボン酸とジオールを主たる構成成分と
するポリエステルである。ここで、芳香族ジカルボン酸
として例えば、テレフタル酸、イソフタル酸、フタル
酸、１，４−ナフタレンジカルボン酸、１，５−ナフタ
レンジカルボン酸、２，６−ナフタレンジカルボン酸、
４，４′−ジフェニルジカルボン酸、４，４′−ジフェ
ニルエーテルジカルボン酸、４，４′−ジフェニルスル
ホンジカルボン酸等を用いることができる。脂肪族ジカ
ルボン酸成分としては例えばアジピン酸、スベリン酸、
セバシン酸、ドデカンジオン酸等を挙げることができ
る。中でも好ましくは芳香族ジカルボン酸のテレフタル
酸、イソフタル酸を挙げることができる。これらの酸成
分は１種のみ用いてもよく、２種以上併用してもよく、
さらには、ヒドロキシ安息香酸等のオキシ酸等を一部共
重合しても良い。また、ジオール成分としては例えば、
エチレングリコール、１，２−プロパンジオール、１，
３−プロパンジオール、ネオペンチルグリコール、１，
３−ブタンジオール、１，４−ブタンジオール、１，５
−ペンタンジオール、１，６−ヘキサンジオール、１，
２−シクロヘキサンジメタノール、１，３−シクロヘキ
サンジメタノール、１，４−シクロヘキサンジメタノー
ル、ジエチレングリコール、トリエチレングリコール、
ポリアルキレングリコール、２，２−ビス（４−ヒドロ
キシエトキシフェニル）プロパン等を用いることができ
る。中でもエチレングリコールが好ましく用いられる。
これらのジオール成分は１種のみ用いてもよく、２種以
上併用してもよい。The polyester used in the laminated film for heat-sensitive stencil printing base paper of the present invention is a polyester containing an aromatic dicarboxylic acid or an aliphatic dicarboxylic acid and a diol as main constituent components. Here, as the aromatic dicarboxylic acid, for example, terephthalic acid, isophthalic acid, phthalic acid, 1,4-naphthalenedicarboxylic acid, 1,5-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid,
4,4'-diphenyldicarboxylic acid, 4,4'-diphenyletherdicarboxylic acid, 4,4'-diphenylsulfonedicarboxylic acid and the like can be used. Examples of the aliphatic dicarboxylic acid component include adipic acid, suberic acid,
Examples thereof include sebacic acid and dodecanedioic acid. Of these, terephthalic acid and isophthalic acid, which are aromatic dicarboxylic acids, are preferable. These acid components may be used alone or in combination of two or more,
Further, a part of oxyacid such as hydroxybenzoic acid may be copolymerized. Further, as the diol component, for example,
Ethylene glycol, 1,2-propanediol, 1,
3-propanediol, neopentyl glycol, 1,
3-butanediol, 1,4-butanediol, 1,5
-Pentanediol, 1,6-hexanediol, 1,
2-cyclohexanedimethanol, 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol, diethylene glycol, triethylene glycol,
Polyalkylene glycol, 2,2-bis (4-hydroxyethoxyphenyl) propane, etc. can be used. Among them, ethylene glycol is preferably used.
These diol components may be used alone or in combination of two or more.
【００１６】特に好ましいポリエステルとしては、ポリ
エチレンテレフタレート、エチレンテレフタレートとエ
チレンイソフタレートとの共重合体、ヘキサメチレンテ
レフタレートとシクロヘキサンジメチレンテレフタレー
トとの共重合体、ポリエチレンテレフタレートとポリブ
チレンテレフタレートのブレンド体等である。穿孔感度
を向上するために更に好ましくは、エチレンテレフタレ
ートとエチレンイソフタレートとの共重合体、ヘキサメ
チレンテレフタレートとシクロヘキサンジメチレンテレ
フタレートとの共重合体、ポリエチレンテレフタレート
とポリブチレンテレフタレートのブレンド体である。Particularly preferred polyesters are polyethylene terephthalate, copolymers of ethylene terephthalate and ethylene isophthalate, copolymers of hexamethylene terephthalate and cyclohexane dimethylene terephthalate, blends of polyethylene terephthalate and polybutylene terephthalate, and the like. . In order to improve the perforation sensitivity, more preferable are copolymers of ethylene terephthalate and ethylene isophthalate, copolymers of hexamethylene terephthalate and cyclohexane dimethylene terephthalate, and blends of polyethylene terephthalate and polybutylene terephthalate.
【００１７】本発明の感熱孔版印刷原紙用積層フィルム
は好ましくは上記ポリエステルの中から選ばれた少なく
とも２種のポリエステル層を有する。The laminated film for heat-sensitive stencil printing base paper of the present invention preferably has at least two polyester layers selected from the above polyesters.
【００１８】本発明におけるポリエステルは従来公知の
方法で製造することができる。例えば、酸成分をジオー
ル成分と直接エステル化反応させた後、この反応の生成
物を減圧下で加熱して余剰のジオール成分を除去しつつ
重縮合させることによって製造する方法や、酸成分とし
てジアルキルエステルを用い、これとジオール成分とで
エステル交換反応させた後、上記と同様に重縮合させる
ことによって製造する方法等がある。この際、必要に応
じて、反応触媒として従来公知のアルカリ金属、アルカ
リ土類金属、マンガン、コバルト、亜鉛、アンチモン、
ゲルマニウム、チタン化合物を用いることもできる。The polyester in the present invention can be produced by a conventionally known method. For example, a method in which an acid component is directly esterified with a diol component, and then the product of this reaction is heated under reduced pressure to remove the excess diol component and polycondensate to produce a dialkyl acid. There is a method of using an ester, performing a transesterification reaction between the ester and a diol component, and then performing polycondensation in the same manner as described above. At this time, if necessary, a conventionally known alkali metal, alkaline earth metal, manganese, cobalt, zinc, antimony as a reaction catalyst,
Germanium and titanium compounds can also be used.
【００１９】本発明に用いられるポリエステルには、必
要に応じて、難燃剤、熱安定剤、酸化防止剤、紫外線吸
収剤、帯電防止剤、顔料、脂肪酸エステル、ワックス等
の有機滑剤あるいはポリシロキサン等の消泡剤等を配合
することができる。In the polyester used in the present invention, if necessary, a flame retardant, a heat stabilizer, an antioxidant, an ultraviolet absorber, an antistatic agent, a pigment, a fatty acid ester, an organic lubricant such as wax, or a polysiloxane, etc. The defoaming agent, etc. can be added.
【００２０】さらには用途に応じて易滑性を付与するこ
ともできる。易滑性付与方法としては特に制限はない
が、例えば、クレー、マイカ、酸化チタン、炭酸カルシ
ウム、カオリン、タルク、湿式あるいは乾式シリカなど
の無機粒子、アクリル酸系ポリマ類、ポリスチレン等を
構成成分とする有機粒子等を配合する方法、ポリエステ
ル重合反応時に添加する触媒等が失活して形成される、
いわゆる内部粒子による方法、界面活性剤を塗布する方
法等がある。Further, slipperiness can be imparted depending on the use. The method for imparting slipperiness is not particularly limited, but for example, clay, mica, titanium oxide, calcium carbonate, kaolin, talc, inorganic particles such as wet or dry silica, acrylic acid-based polymers, polystyrene and the like as constituent components. A method of blending organic particles and the like, a catalyst added during the polyester polymerization reaction is deactivated and formed,
There are a so-called internal particle method and a method of applying a surfactant.
【００２１】従来公知の感熱孔版印刷原紙用のフィルム
としては、感熱層と保護層よりなる積層フィルムを剥離
して多孔性支持体と貼り合わせる方法や感熱層と非接着
層よりなる積層フィルムの感熱層に多孔性支持体を貼り
合わせた後に非接着層を剥離除去する方法などがある。
しかしながら、いずれも積層フィルムを剥離して使用す
るものであり、積層状態で使用する本発明の感熱孔版印
刷原紙用積層フィルムとは全く異なる。Conventionally known films for heat-sensitive stencil printing base paper include a method in which a laminated film composed of a heat-sensitive layer and a protective layer is peeled off and bonded to a porous support, and a heat-sensitive laminated film composed of a heat-sensitive layer and a non-adhesive layer. There is a method in which a non-adhesive layer is peeled and removed after a porous support is attached to the layer.
However, all of them are used by peeling the laminated film, which is completely different from the laminated film for heat-sensitive stencil printing base paper of the present invention used in a laminated state.
【００２２】本発明の感熱孔版印刷原紙用積層フィルム
は、常法に従って所定の多孔性薄葉紙や合成繊維からな
る不織布を公知の接着剤を用いてラミネートする方法や
合成繊維からなる未延伸不織布を積層フィルムの延伸前
に貼り合わせて共延伸する方法などにより感熱孔版印刷
原紙とすることができる。The laminated film for heat-sensitive stencil printing base paper of the present invention is a method for laminating a predetermined porous thin paper or a nonwoven fabric made of synthetic fibers by a known method using a known adhesive, or an unstretched nonwoven fabric made of synthetic fibers is laminated. A heat-sensitive stencil printing base paper can be obtained by a method of laminating and co-stretching before stretching the film.
【００２３】次に本発明の感熱孔版印刷原紙用積層フィ
ルムの製造方法について説明するが、本発明はこれに限
定されるものではない。Next, the method for producing the laminated film for heat-sensitive stencil printing base paper of the present invention will be explained, but the present invention is not limited to this.
【００２４】融点が５℃以上異なるポリエステルを別々
の押出機を用いて溶融押出して、口金マニホールド部ま
たは口金に入るポリマー管内で積層してポリマーをキャ
ストドラム上に押し出すことによって未延伸積層フィル
ムを製造できる。口金のスリット幅、ポリマーの吐出
量、キャストドラムの回転数を調整することによって、
所望の厚さの未延伸積層フィルムを作ることができる。An unstretched laminated film is produced by melt-extruding polyesters having different melting points of 5 ° C. or more by using different extruders, laminating them in a die manifold section or a polymer tube entering the die and extruding the polymer onto a cast drum. it can. By adjusting the slit width of the die, the discharge amount of the polymer, and the rotation speed of the cast drum,
An unstretched laminated film of desired thickness can be made.
【００２５】本発明の感熱孔版印刷原紙用積層フィルム
の延伸方法は特に限定されないが、フィルムの穿孔感度
向上から二軸延伸が好ましい。二軸延伸は逐次二軸延伸
法または同時二軸延伸法のいずれの方法であっても良
い。逐次二軸延伸法の場合、縦方向、横方向の順に延伸
するのが一般的であるが、逆に延伸しても良い。延伸温
度は積層フィルムを構成するポリエステルのガラス転移
温度（Ｔｇ）と冷結晶化温度（Ｔｃｃ）との間であるの
が好ましい。延伸倍率は特に限定されるものではなく、
用いるポリエステルフィルム用ポリマーの種類や原紙に
要求される感度等によって適宜決定されるが、通常は
縦、横それぞれ２〜５倍程度が適当である。また、二軸
延伸後、縦または横、あるいは縦横に再延伸してもかま
わない。The stretching method of the laminated film for heat-sensitive stencil printing base paper of the present invention is not particularly limited, but biaxial stretching is preferable from the viewpoint of improving the perforation sensitivity of the film. The biaxial stretching may be any of a sequential biaxial stretching method and a simultaneous biaxial stretching method. In the case of the sequential biaxial stretching method, stretching is generally performed in the order of the longitudinal direction and the horizontal direction, but may be performed in the opposite direction. The stretching temperature is preferably between the glass transition temperature (Tg) and the cold crystallization temperature (Tcc) of the polyester constituting the laminated film. The draw ratio is not particularly limited,
It is appropriately determined depending on the kind of the polymer for polyester film to be used, the sensitivity required for the base paper, etc., but usually about 2 to 5 times in each of the length and the width is suitable. After biaxial stretching, the film may be stretched longitudinally or horizontally, or vertically and horizontally again.
【００２６】合成繊維からなる未延伸不織布を積層フィ
ルムの延伸前に貼り合わせて共延伸して一挙に原紙とす
る場合は、上記の未延伸積層フィルムが得られたところ
で未延伸不織布と重ね合わせ共延伸する方法が好ましく
用いられる。When an unstretched non-woven fabric made of synthetic fibers is laminated and co-stretched before stretching the laminated film to form a base paper all at once, when the unstretched laminated film is obtained, the unstretched nonwoven fabric is overlaid with the unstretched nonwoven fabric. A stretching method is preferably used.
【００２７】また、原紙として使用するにおいては、原
紙を構成するフィルム面には穿孔時のスティック防止の
ため離型剤を塗布するのが好ましい。離型剤としては、
シリコーンオイル、シリコーン系樹脂、フッ素系樹脂、
界面活性剤等からなる従来公知のものを用いることがで
きる。When used as a base paper, it is preferable to apply a release agent to the film surface of the base paper to prevent sticking during punching. As a release agent,
Silicone oil, silicone resin, fluorine resin,
It is possible to use a conventionally known one such as a surfactant.
【００２８】また、離型剤中には、帯電防止剤、耐熱
剤、耐酸化防止剤、有機粒子、無機粒子、顔料など各種
添加剤を混合して併用することができる。Further, various additives such as antistatic agents, heat-resistant agents, antioxidants, organic particles, inorganic particles and pigments can be mixed and used in the release agent.
【００２９】[0029]
（１）積層フィルムの融点（℃） 積層フィルムから５ｍｇを採取し、セイコー電子工業
（株）製示差走査熱量計ＲＤＣ２２０型を用い、室温よ
り昇温速度２０℃／分で昇温した時の吸熱曲線のピーク
の温度より求めた。(1) Melting point (° C.) of laminated film Endotherm when 5 mg was sampled from the laminated film and using a differential scanning calorimeter RDC220 type manufactured by Seiko Denshi Kogyo Co., Ltd. at a heating rate of 20 ° C./minute from room temperature. It was determined from the temperature at the peak of the curve.
【００３０】（２）積層フィルムの厚み（μｍ） 積層フィルムの任意の１０箇所を断面方向に切り出し電
子顕微鏡で倍率２０００倍で１０枚の写真撮影を行い、
フィルムの厚みを測定した。これを１０枚の写真につい
て行い、その平均値で表わした。(2) Thickness of laminated film (μm) 10 arbitrary places of the laminated film were cut out in the cross-sectional direction, and 10 photographs were taken with an electron microscope at a magnification of 2000 times.
The thickness of the film was measured. This was performed for 10 photographs and expressed as the average value.
【００３１】（３）印刷性評価 作成した積層フィルムに薄葉紙を接着剤により貼り合わ
せて原紙を作成し、理想科学工業（株）製“ＲＩＳＯＧ
ＲＡＰＨ”ＧＲ２７５に供給して、サーマルヘッドのエ
ネルギーを２４μＪ／ドットにして製版し、ＪＩＳ第１
水準の文字サイズ２ｍｍ角のものと５ｍｍ角のものおよ
び●（丸で中が黒く塗りつぶされたもの）で２〜１０ｍ
ｍφのもの、又、太さの異なる罫線を原稿として製版し
た。製版原稿を用いて印刷したものを目視判定により、
次のように評価した。(3) Evaluation of printability Thin paper is laminated on the prepared laminated film with an adhesive to prepare a base paper, and "RISOG" manufactured by Ideal Science Industry Co., Ltd.
It is supplied to the RAPH "GR275, and the energy of the thermal head is changed to 24 μJ / dot to make a plate, and the JIS No. 1
Standard character size 2 mm square, 5 mm square, and ● (circle filled in black) 2-10 m
Plates with mφ and ruled lines with different thicknesses were made as originals. By visually deciding what was printed using the plate-making manuscript,
The evaluation was as follows.
【００３２】文字が鮮明で、罫線に太さムラがなく、黒
ベタ部で白抜けのないものを○、文字が不鮮明で、罫線
が切れており、黒ベタ部で白抜けがめだつものを×、○
と×の中間程度で、実用上なんとか使用できるレベルの
ものを△とした。○ Characters that are clear, ruled lines have no thickness unevenness, and solid black areas have no white spots. ○ Characters that are not clear and ruled lines are broken, and black solid portions have white spots. , ○
A grade that is in the middle of between and and that can be practically used was marked with Δ.
【００３３】（４）フィルムのカール 作成した積層フィルムを接着剤により薄葉紙と貼り合わ
せて１００×１００ｍｍのサイズにカットして、直径１
インチの円筒形の筒に３０秒間巻き付けた後に筒から剥
がして、水平な台の上に置いた時のカールしたフィルム
の直径から求めた。(4) Curling of film The laminated film thus prepared is attached to a thin paper with an adhesive and cut into a size of 100 × 100 mm to have a diameter of 1
It was determined from the diameter of the curled film when it was wound on an inch cylindrical cylinder for 30 seconds, peeled from the cylinder, and placed on a horizontal table.
【００３４】直径が３０ｍｍ未満を× 直径が３０ｍｍ以上を○Diameter less than 30 mm × Diameter 30 mm or more
【００３５】[0035]
【実施例】以下、本発明を実施例により、さらに詳細に
説明する。The present invention will be described below in more detail with reference to examples.
【００３６】実施例１ エチレンテレフタレート７５モル％、エチレンイソフタ
レート２５モル％からなる共重合ポリエステル樹脂原料
（［η］＝０．６５０、Ｔｍ＝１９０℃）（Ａ層）をス
クリュウ径４０ｍｍの押出機に供給し、ポリエチレンテ
レフタレート（［η］＝０．６１５、Ｔｍ＝２６５℃）
とポリブチレンテレフタレート（［η］＝１．２、Ｔｍ
＝２２５℃）を５０：５０の割合で混合した混合原料
（Ｂ層）をスクリュウ径３０ｍｍの押出機に供給してそ
れぞれ別々に溶融して、口金温度２７５℃で口金内で積
層して押出し、直径６００ｍｍの冷却ドラム（２５℃）
上にキャストして未延伸積層フィルムを作成した。Example 1 A copolymer polyester resin raw material ([η] = 0.650, Tm = 190 ° C.) (A layer) comprising 75 mol% of ethylene terephthalate and 25 mol% of ethylene isophthalate (A layer) was extruded with a screw diameter of 40 mm. And polyethylene terephthalate ([η] = 0.615, Tm = 265 ° C)
And polybutylene terephthalate ([η] = 1.2, Tm
= 225 ° C.) at a ratio of 50:50, the mixed raw material (layer B) is supplied to an extruder having a screw diameter of 30 mm, melted separately, and laminated and extruded in a die at a die temperature of 275 ° C., 600 mm diameter cooling drum (25 ° C)
An unstretched laminated film was prepared by casting on the above.
【００３７】該未延伸積層フィルムを９０℃に加熱され
たロールで長さ方向に３．６倍に延伸した後に、該延伸
積層フィルムをテンター式延伸機に送り込み、９５℃で
幅方向に３．８倍に延伸し、さらにテンター内で１００
℃×５秒間熱処理して厚さ０．８μｍの感熱孔版原紙用
フィルムを作成した。作成した積層フィルムは電子顕微
鏡による断面観察から２層で構成されていた。また、各
層の厚みは、Ａ層が０．４μｍ、Ｂ層が０．４μｍであ
り、融点は、１９０℃と２１５℃と２４５℃に観測され
た。The unstretched laminated film was stretched 3.6 times in the length direction with a roll heated to 90 ° C., and then the stretched laminated film was fed into a tenter type stretching machine, and was stretched at 95 ° C. in the width direction at 3. Stretched 8 times and then 100 in the tenter
The film was heat-treated at 5 ° C. for 5 seconds to prepare a 0.8 μm-thick film for heat-sensitive stencil sheet. The produced laminated film was composed of two layers from a cross-sectional observation with an electron microscope. The thickness of each layer was 0.4 μm for the A layer and 0.4 μm for the B layer, and the melting points were observed at 190 ° C., 215 ° C., and 245 ° C.
【００３８】さらに、該積層フィルムのＡ層側に接着剤
により薄葉紙と貼り合わせて原紙を作成して印刷性、カ
ールについて評価を行った。評価結果は表１、表２に示
す通り印刷性もカールも良好であった。Further, a base paper was prepared by adhering a thin paper to the layer A side of the laminated film with an adhesive, and the printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were good in printability and curl.
【００３９】実施例２ 実施例１で積層厚みを変更して厚さ０．８μｍの感熱孔
版原紙用フィルムを作成した。作成した積層フィルムは
電子顕微鏡による断面観察から２層で構成されていた。
また、各層の厚みは、Ａ層が０．６μｍ、Ｂ層が０．２
μｍであり、融点は、１９０℃と２１５℃と２４５℃に
観測された。Example 2 A film for heat-sensitive stencil sheet having a thickness of 0.8 μm was prepared by changing the laminated thickness in Example 1. The produced laminated film was composed of two layers from a cross-sectional observation with an electron microscope.
The thickness of each layer is 0.6 μm for the A layer and 0.2 for the B layer.
μm and melting points were observed at 190 ° C., 215 ° C. and 245 ° C.
【００４０】さらに、該積層フィルムのＡ層側に接着剤
により薄葉紙と貼り合わせて原紙を作成して印刷性、カ
ールについて評価を行った。評価結果は表１、表２に示
す通り印刷性もカールも良好であった。Further, a base paper was prepared by adhering a thin paper to the layer A side of the laminated film with an adhesive, and the printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were good in printability and curl.
【００４１】実施例３ エチレンテレフタレート８６モル％、エチレンイソフタ
レート１４モル％からなる共重合ポリエステル樹脂原料
（［η］＝０．６５０、Ｔｍ＝２１７℃）（Ａ層）をス
クリュウ径４０ｍｍの押出機に供給し、ポリエチレンテ
レフタレート（［η］＝０．６１５、Ｔｍ＝２６５℃）
とポリブチレンテレフタレート（［η］＝１．２、Ｔｍ
＝２２５℃）を５０：５０の割合で混合した混合原料
（Ｂ層）をスクリュウ径３０ｍｍの押出機に供給してそ
れぞれ別々に溶融して、口金温度２７５℃で口金内で積
層して押出し、直径６００ｍｍの冷却ドラム（２５℃）
上にキャストして未延伸積層フィルムを作成した。Example 3 A copolyester resin raw material ([η] = 0.650, Tm = 217 ° C.) (A layer) composed of 86 mol% ethylene terephthalate and 14 mol% ethylene isophthalate (A layer) was extruded with a screw diameter of 40 mm. And polyethylene terephthalate ([η] = 0.615, Tm = 265 ° C)
And polybutylene terephthalate ([η] = 1.2, Tm
= 225 ° C.) at a ratio of 50:50, the mixed raw material (layer B) is supplied to an extruder having a screw diameter of 30 mm, melted separately, and laminated and extruded in a die at a die temperature of 275 ° C., 600 mm diameter cooling drum (25 ° C)
An unstretched laminated film was prepared by casting on the above.
【００４２】該未延伸積層フィルムを９０℃に加熱され
たロールで長さ方向に４．０倍に延伸した後に、該延伸
積層フィルムをテンター式延伸機に送り込み、９５℃で
幅方向に４．０倍に延伸し、さらにテンター内で１００
℃×５秒間熱処理して厚さ０．８μｍの感熱孔版原紙用
フィルムを作成した。作成した積層フィルムは電子顕微
鏡による断面観察から２層で構成されていた。また、各
層の厚みは、Ａ層が０．４μｍ、Ｂ層が０．４μｍであ
り、融点は、２１７℃と２１５℃と２４５℃に観測され
た。The unstretched laminated film was stretched 4.0 times in the lengthwise direction by a roll heated to 90 ° C., and then the stretched laminated film was fed into a tenter type stretching machine, where it was stretched at 95 ° C. in the widthwise direction 4. Stretched to 0 times and then 100 in the tenter.
The film was heat-treated at 5 ° C. for 5 seconds to prepare a 0.8 μm-thick film for heat-sensitive stencil sheet. The produced laminated film was composed of two layers from a cross-sectional observation with an electron microscope. The thickness of each layer was 0.4 μm for the A layer and 0.4 μm for the B layer, and the melting points were observed at 217 ° C., 215 ° C. and 245 ° C.
【００４３】さらに、該積層フィルム（Ａ層側）を接着
剤により薄葉紙と貼り合わせて原紙を作成して印刷性、
カールについて評価を行った。評価結果は表１、表２に
示す通り印刷性もカールも良好であった。Further, the laminated film (A layer side) is bonded to a thin paper with an adhesive to form a base paper, and the printability,
The curl was evaluated. As shown in Tables 1 and 2, the evaluation results were good in printability and curl.
【００４４】実施例４ エチレンテレフタレート７０モル％、シクロヘキサンジ
メタノール３０モル％からなる共重合ポリエステル樹脂
原料（［η］＝０．７５０、Ｔｍ＝１７０℃）（Ａ層）
をスクリュウ径４０ｍｍの押出機に供給し、ポリエチレ
ンテレフタレート（［η］＝０．６１５、Ｔｍ＝２６５
℃）とポリブチレンテレフタレート（［η］＝１．２、
Ｔｍ＝２２５℃）を５０：５０の割合で混合した混合原
料（Ｂ層）をスクリュウ径３０ｍｍの押出機に供給して
それぞれ別々に溶融して、口金温度２７５℃で口金内で
積層して押出し、直径６００ｍｍの冷却ドラム（２５
℃）上にキャストして未延伸積層フィルムを作成した。Example 4 Copolyester resin raw material ([η] = 0.750, Tm = 170 ° C.) consisting of 70 mol% of ethylene terephthalate and 30 mol% of cyclohexanedimethanol (A layer)
Was fed to an extruder with a screw diameter of 40 mm, and polyethylene terephthalate ([η] = 0.615, Tm = 265
C) and polybutylene terephthalate ([η] = 1.2,
(Tm = 225 ° C.) was mixed at a ratio of 50:50, and the mixed raw material (layer B) was supplied to an extruder having a screw diameter of 30 mm, melted separately, and laminated and extruded at a die temperature of 275 ° C. , Cooling drum with a diameter of 600 mm (25
(° C) to cast an unstretched laminated film.
【００４５】該未延伸積層フィルムを９０℃に加熱され
たロールで長さ方向に３．８倍に延伸した後に、該延伸
積層フィルムをテンター式延伸機に送り込み、９５℃で
幅方向に３．９倍に延伸し、さらにテンター内で１００
℃×５秒間熱処理して厚さ０．８μｍの感熱孔版原紙用
フィルムを作成した。作成した積層フィルムは電子顕微
鏡による断面観察から２層で構成されていた。また、各
層の厚みは、Ａ層が０．４μｍ、Ｂ層が０．４μｍであ
り、融点は、１７０℃と２１５℃と２４５℃に観測され
た。The unstretched laminated film was stretched 3.8 times in the lengthwise direction by a roll heated to 90 ° C., and then the stretched laminated film was fed into a tenter type stretching machine, where it was stretched at 95 ° C. in the widthwise direction. Stretched 9 times and then 100 in a tenter
The film was heat-treated at 5 ° C. for 5 seconds to prepare a 0.8 μm-thick film for heat-sensitive stencil sheet. The produced laminated film was composed of two layers from a cross-sectional observation with an electron microscope. The thickness of each layer was 0.4 μm for the A layer and 0.4 μm for the B layer, and the melting points were observed at 170 ° C., 215 ° C., and 245 ° C.
【００４６】さらに、該積層フィルムのＡ層側に接着剤
により薄葉紙と貼り合わせて原紙を作成して印刷性、カ
ールについて評価を行った。評価結果は表１、表２に示
す通り印刷性もカールも良好であった。Further, a base paper was prepared by adhering a thin paper to the A layer side of the laminated film with an adhesive, and the printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were good in printability and curl.
【００４７】実施例５ エチレンテレフタレート７５モル％、エチレンイソフタ
レート２５モル％からなる共重合ポリエステル樹脂原料
（「η」＝０．６５０、Ｔｍ＝１９０℃）（Ａ層）をス
クリュウ径４０ｍｍの押出機に供給し、エチレンテレフ
タレート８０モル％とエチレンナフタレート２０モル％
からなる共重合ポリエステル樹脂原料（［η］＝０．７
００、Ｔｍ＝２０５℃）（Ｂ層）をスクリュウ径３０ｍ
ｍの押出機に供給してそれぞれ別々に溶融して、口金温
度２７５℃で口金内で積層して押出し、直径６００ｍｍ
の冷却ドラム（２５℃）上にキャストして未延伸積層フ
ィルムを作成した。Example 5 Copolymerized polyester resin raw material (“η” = 0.650, Tm = 190 ° C.) (A layer) consisting of 75 mol% ethylene terephthalate and 25 mol% ethylene isophthalate (A layer) was extruded with a screw diameter of 40 mm. 80 mol% ethylene terephthalate and 20 mol% ethylene naphthalate
Copolymerized polyester resin raw material ([η] = 0.7
00, Tm = 205 ° C) (layer B), screw diameter 30m
m, and melted separately, and then laminated and extruded in a die at a die temperature of 275 ° C., diameter 600 mm
Was cast on a cooling drum (25 ° C.) to prepare an unstretched laminated film.
【００４８】該未延伸積層フィルムを９５℃に加熱され
たロールで長さ方向に３．５倍に延伸した後に、該延伸
積層フィルムをテンター式延伸機に送り込み、１００℃
で幅方向に３．６倍に延伸し、さらにテンター内で１０
０℃×５秒間熱処理して厚さ０．８μｍの感熱孔版原紙
用フィルムを作成した。作成した積層フィルムは電子顕
微鏡による断面観察から２層で構成されていた。また、
各層の厚みは、Ａ層が０．４μｍ、Ｂ層が０．４μｍで
あり、融点は、１９０℃と２０５℃に観測された。The unstretched laminated film was stretched 3.5 times in the length direction with a roll heated to 95 ° C., and then the stretched laminated film was fed into a tenter type stretching machine to obtain 100 ° C.
Stretched in the width direction by 3.6 times and then 10 times in the tenter.
A film for heat-sensitive stencil sheet having a thickness of 0.8 μm was prepared by heat treatment at 0 ° C. for 5 seconds. The produced laminated film was composed of two layers from a cross-sectional observation with an electron microscope. Also,
The thickness of each layer was 0.4 μm for the A layer and 0.4 μm for the B layer, and the melting points were observed at 190 ° C. and 205 ° C.
【００４９】さらに、該積層フィルムのＡ層側に接着剤
により薄葉紙と貼り合わせて原紙を作成して印刷性、カ
ールについて評価を行った。評価結果は表１、表２に示
す通り印刷性もカールも良好であった。Further, a base paper was prepared by adhering a thin paper to the A layer side of the laminated film with an adhesive, and the printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were good in printability and curl.
【００５０】実施例６ エチレンテレフタレート７５モル％、エチレンイソフタ
レート２５モル％からなる共重合ポリエステル樹脂原料
（［η］＝０．６５０、Ｔｍ＝１９０℃）（Ａ層）をス
クリュウ径４０ｍｍの押出機に供給し、ポリエチレンテ
レフタレート（［η］＝０．６１５、Ｔｍ＝２６５℃）
とポリヘキサメチレンテレフタレート（［η］＝０．６
５、Ｔｍ＝１４０℃）を５０：５０の割合で混合した混
合原料（Ｂ層）をスクリュウ径３０ｍｍの押出機に供給
してそれぞれ別々に溶融して、口金温度２７５℃で口金
内で積層して押出し、直径６００ｍｍの冷却ドラム（２
５℃）上にキャストして未延伸積層フィルムを作成し
た。Example 6 A copolymer polyester resin raw material ([η] = 0.650, Tm = 190 ° C.) (A layer) comprising 75 mol% of ethylene terephthalate and 25 mol% of ethylene isophthalate (A layer) was extruded with a screw diameter of 40 mm. And polyethylene terephthalate ([η] = 0.615, Tm = 265 ° C)
And polyhexamethylene terephthalate ([η] = 0.6
5, Tm = 140 ° C.) was mixed at a ratio of 50:50, and the mixed raw material (layer B) was fed to an extruder having a screw diameter of 30 mm, melted separately, and laminated in a die at a die temperature of 275 ° C. Extruded and cooled with a 600 mm diameter cooling drum (2
(5 ° C.) and cast to prepare an unstretched laminated film.
【００５１】該未延伸積層フィルムを９２℃に加熱され
たロールで長さ方向に３．６倍に延伸した後に、該延伸
積層フィルムをテンター式延伸機に送り込み、９７℃で
幅方向に３．７倍に延伸し、さらにテンター内で１００
℃×５秒間熱処理して厚さ０．８μｍの感熱孔版原紙用
フィルムを作成した。作成した積層フィルムは電子顕微
鏡による断面観察から２層で構成されていた。また、各
層の厚みは、Ａ層が０．４μｍ、Ｂ層が０．４μｍであ
り、融点は、１９０℃と１４２℃と２５３℃に観測され
た。The unstretched laminated film was stretched 3.6 times in the lengthwise direction by a roll heated to 92 ° C., and then the stretched laminated film was fed into a tenter type stretching machine, and was stretched at 97 ° C. in the widthwise direction 3. Stretched 7 times and then 100 in the tenter
The film was heat-treated at 5 ° C. for 5 seconds to prepare a 0.8 μm-thick film for heat-sensitive stencil sheet. The produced laminated film was composed of two layers from a cross-sectional observation with an electron microscope. The thickness of each layer was 0.4 μm for the A layer and 0.4 μm for the B layer, and the melting points were observed at 190 ° C., 142 ° C. and 253 ° C.
【００５２】さらに、該積層フィルムのＡ層側に接着剤
により薄葉紙と貼り合わせて原紙を作成して印刷性、カ
ールについて評価を行った。評価結果は表１、表２に示
す通り印刷性もカールも良好であった。Further, a base paper was prepared by adhering a thin paper to the layer A side of the laminated film with an adhesive, and the printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were good in printability and curl.
【００５３】実施例７ エチレンテレフタレート７５モル％、エチレンイソフタ
レート２５モル％からなる共重合ポリエステル樹脂原料
（［η］＝０．６５０、Ｔｍ＝１９０℃）（Ａ層）をス
クリュウ径４０ｍｍの押出機に供給し、エチレンテレフ
タレート（［η］＝０．６１５、Ｔｍ＝２６５℃）とブ
チレンテレフタレート（［η］＝１．２、Ｔｍ＝２２５
℃）を５０：５０の割合で混合した混合原料（Ｂ層）を
スクリュウ径３０ｍｍの押出機に供給してそれぞれ別々
に溶融して、口金温度２７５℃で口金内でＡ層／Ｂ層／
Ａ層になるように積層して押出し、直径６００ｍｍの冷
却ドラム（２５℃）上にキャストして未延伸積層フィル
ムを作成した。Example 7 A copolymer polyester resin raw material ([η] = 0.650, Tm = 190 ° C.) (A layer) consisting of 75 mol% of ethylene terephthalate and 25 mol% of ethylene isophthalate (A layer) was extruded with a screw diameter of 40 mm. And ethylene terephthalate ([η] = 0.615, Tm = 265 ° C.) and butylene terephthalate ([η] = 1.2, Tm = 225).
(C) at a ratio of 50:50, the mixed raw material (B layer) is supplied to an extruder having a screw diameter of 30 mm and melted separately, and the A layer / B layer / B layer in the die at a die temperature of 275 ° C.
An unstretched laminated film was prepared by laminating so as to be an A layer, extruding, and casting on a cooling drum (25 ° C.) having a diameter of 600 mm.
【００５４】該未延伸積層フィルムを９０℃に加熱され
たロールで長さ方向に３．６倍に延伸した後に、該延伸
積層フィルムをテンター式延伸機に送り込み、９５℃で
幅方向に３．８倍に延伸し、さらにテンター内で１００
℃×５秒間熱処理して厚さ０．８μｍの感熱孔版原紙用
フィルムを作成した。作成した積層フィルムは電子顕微
鏡による断面観察から３層で構成されていた。また、各
層の厚みは、Ａ層が０．２μｍ、Ｂ層が０．４μｍであ
り、融点は、１９０℃と２１５℃と２４４℃に観測され
た。The unstretched laminated film was stretched 3.6 times in the lengthwise direction with a roll heated to 90 ° C., and then the stretched laminated film was fed into a tenter type stretching machine, where it was stretched at 95 ° C. in the widthwise direction. Stretched 8 times and then 100 in the tenter
The film was heat-treated at 5 ° C. for 5 seconds to prepare a 0.8 μm-thick film for heat-sensitive stencil sheet. The produced laminated film was composed of three layers from the cross-sectional observation by an electron microscope. The thickness of each layer was 0.2 μm for the A layer and 0.4 μm for the B layer, and the melting points were observed at 190 ° C., 215 ° C. and 244 ° C.
【００５５】さらに、該積層フィルムを接着剤により薄
葉紙と貼り合わせて原紙を作成して印刷性、カールにつ
いて評価を行った。評価結果は表１、表２に示す通り印
刷性もカールも良好であった。Further, the laminated film was bonded to a thin paper with an adhesive to prepare a base paper, and printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were good in printability and curl.
【００５６】実施例８ 孔径０．３ｍｍ、孔数７５個の矩形口金を用いて、口金
温度３００℃でポリエチレンテレフタレート原料
（［η］＝０．４８５、Ｔｍ＝２６５℃）をメルトブロ
ー法にて紡出し、平均繊維径１０μｍ、目付量１００ｇ
／ｍ2 の不織布を作製した。該不織布の結晶化度は５％
であった。Example 8 Using a rectangular die having a hole diameter of 0.3 mm and 75 holes, a polyethylene terephthalate raw material ([η] = 0.485, Tm = 265 ° C.) was spun by a melt-blowing method at a die temperature of 300 ° C. Discharge, average fiber diameter 10 μm, basis weight 100 g
A nonwoven fabric of / m 2 was prepared. The degree of crystallinity of the non-woven fabric is 5%
Met.
【００５７】次いで、実施例１の未延伸積層フィルムを
用意した。該未延伸積層フィルムの上に、前記の不織布
を重ね、加熱ロールに供給してロール温度９０℃で熱圧
着して積層シートを作製した。Then, the unstretched laminated film of Example 1 was prepared. The non-woven fabric was placed on the unstretched laminated film, supplied to a heating roll, and thermocompression bonded at a roll temperature of 90 ° C. to prepare a laminated sheet.
【００５８】該積層シートを９０℃に加熱されたロール
で長さ方向に３．６倍に延伸した後に、該延伸積層シー
トをテンター式延伸機に送り込み、９５℃で幅方向に
３．８倍に延伸し、さらにテンター内で１００℃×５秒
間熱処理して厚さ７０μｍの感熱孔版印刷原紙を作製し
た。作製した感熱孔版印刷原紙のフィルム部分は電子顕
微鏡による断面観察から２層で構成されていた。また、
各層の厚みは、Ａ層が０．４μｍ、Ｂ層が０．４μｍで
あり、融点は、１９０℃と２１５℃と２４５℃に観測さ
れた。The laminated sheet was stretched 3.6 times in the length direction with a roll heated to 90 ° C., and then the stretched laminated sheet was fed into a tenter type stretching machine, and was stretched 3.8 times in the width direction at 95 ° C. And further heat-treated in a tenter at 100 ° C. for 5 seconds to prepare a heat-sensitive stencil printing base paper having a thickness of 70 μm. The film portion of the prepared heat-sensitive stencil printing base paper was composed of two layers from the cross-sectional observation with an electron microscope. Also,
The thickness of each layer was 0.4 μm for the A layer and 0.4 μm for the B layer, and the melting points were observed at 190 ° C., 215 ° C. and 245 ° C.
【００５９】さらに、感熱孔版印刷原紙の印刷性、カー
ルについて評価を行った。評価結果は表１、表２に示す
通り印刷性もカールも良好であった。Further, the printability and curl of the heat-sensitive stencil printing base paper were evaluated. As shown in Tables 1 and 2, the evaluation results were good in printability and curl.
【００６０】比較例１ エチレンテレフタレート７５モル％とエチレンイソフタ
レート２５モル％からなる共重合ポリエステル樹脂原料
（［η］＝０．６５０、Ｔｍ＝１９０℃）をスクリュウ
径４０ｍｍの押出機を用いて、口金温度２７５℃で押出
し、直径６００ｍｍの冷却ドラム（２５℃）上にキャス
トして未延伸フィルムを作成した。Comparative Example 1 A copolymerized polyester resin raw material ([η] = 0.650, Tm = 190 ° C.) consisting of 75 mol% of ethylene terephthalate and 25 mol% of ethylene isophthalate was used in an extruder having a screw diameter of 40 mm. It was extruded at a die temperature of 275 ° C. and cast on a cooling drum (25 ° C.) having a diameter of 600 mm to prepare an unstretched film.
【００６１】該未延伸フィルムを９０℃に加熱されたロ
ールで長さ方向に３．６倍に延伸した後に、該延伸フィ
ルムをテンター式延伸機に送り込み、９５℃で幅方向に
３．８倍に延伸し、さらにテンター内で１００℃×５秒
間熱処理して厚さ０．８μｍの感熱孔版原紙用フィルム
を作成した。作成したフィルムは電子顕微鏡による断面
観察から１層であった。また、融点は、１９０℃に観測
された。The unstretched film was stretched 3.6 times in the length direction by a roll heated to 90 ° C., and then the stretched film was fed into a tenter type stretching machine, and was stretched 3.8 times in the width direction at 95 ° C. And further heat-treated in a tenter at 100 ° C. for 5 seconds to prepare a 0.8 μm-thick film for heat-sensitive stencil sheet. The produced film was a single layer from the cross-sectional observation by an electron microscope. Further, the melting point was observed at 190 ° C.
【００６２】さらに、該フィルムを接着剤により薄葉紙
と貼り合わせて原紙を作成して印刷性、カールについて
評価を行った。評価結果は表１、表２に示す通り印刷性
もカールも不十分であった。Further, the film was attached to a thin paper with an adhesive to prepare a base paper, and printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were insufficient printability and curl.
【００６３】比較例２ ポリエチレンテレフタレート（［η］＝０．６１５、Ｔ
ｍ＝２６５℃）にポリブチレンテレフタレート（［η］
＝１．２、Ｔｍ＝２２５℃）を５０：５０の割合で混合
した混合原料をスクリュウ径４０ｍｍの押出機を用い
て、口金温度２７５℃で押出し、直径６００ｍｍの冷却
ドラム（２５℃）上にキャストして未延伸フィルムを作
成した。Comparative Example 2 Polyethylene terephthalate ([η] = 0.615, T
m = 265 ° C.) polybutylene terephthalate ([η]
= 1.2, Tm = 225 ° C.) at a ratio of 50:50, and the mixed raw material is extruded at a die temperature of 275 ° C. using an extruder having a screw diameter of 40 mm, and is placed on a cooling drum (25 ° C.) having a diameter of 600 mm. An unstretched film was prepared by casting.
【００６４】該未延伸フィルムを９５℃に加熱されたロ
ールで長さ方向に３．５倍に延伸した後に、該延伸フィ
ルムをテンター式延伸機に送り込み、９５℃で幅方向に
３．６倍に延伸し、さらにテンター内で１００℃×５秒
間熱処理して厚さ０．８μｍの感熱孔版原紙用フィルム
を作成した。作成したフィルムは電子顕微鏡による断面
観察から１層であった。また、融点は、２１５℃と２４
５℃に観測された。The unstretched film was stretched 3.5 times in the length direction with a roll heated to 95 ° C., and then the stretched film was fed into a tenter type stretching machine, and was stretched 3.6 times in the width direction at 95 ° C. And further heat-treated in a tenter at 100 ° C. for 5 seconds to prepare a 0.8 μm-thick film for heat-sensitive stencil sheet. The produced film was a single layer from the cross-sectional observation by an electron microscope. The melting point is 215 ° C and 24
Observed at 5 ° C.
【００６５】さらに、該フィルムを接着剤により薄葉紙
と貼り合わせて原紙を作成して印刷性、カールについて
評価を行った。評価結果は表１、表２に示す通り印刷性
もカールも不十分であった。Further, the film was attached to a thin paper with an adhesive to prepare a base paper, and printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were insufficient printability and curl.
【００６６】比較例３ エチレンテレフタレート７０モル％とシクロヘキサンジ
メタノール３０モル％からなる共重合ポリエステル樹脂
原料（［η］＝０．７５０、Ｔｍ＝１７０℃）をスクリ
ュウ径４０ｍｍの押出機を用いて、口金温度２７５℃で
押出し、直径６００ｍｍの冷却ドラム（２５℃）上にキ
ャストして未延伸フィルムを作成した。Comparative Example 3 A copolyester resin raw material ([η] = 0.750, Tm = 170 ° C.) consisting of 70 mol% of ethylene terephthalate and 30 mol% of cyclohexanedimethanol was used in an extruder having a screw diameter of 40 mm. It was extruded at a die temperature of 275 ° C. and cast on a cooling drum (25 ° C.) having a diameter of 600 mm to prepare an unstretched film.
【００６７】該未延伸フィルムを９０℃に加熱されたロ
ールで長さ方向に３．８倍に延伸した後に、該延伸フィ
ルムをテンター式延伸機に送り込み、９５℃で幅方向に
３．９倍に延伸し、さらにテンター内で１００℃×５秒
間熱処理して厚さ０．８μｍの感熱孔版原紙用フィルム
を作成した。作成したフィルムは電子顕微鏡による断面
観察から１層であった。また、融点は、１７０℃に観測
された。The unstretched film was stretched 3.8 times in the length direction with a roll heated to 90 ° C., and then the stretched film was fed into a tenter type stretching machine, and was stretched 3.9 times in the width direction at 95 ° C. And further heat-treated in a tenter at 100 ° C. for 5 seconds to prepare a 0.8 μm-thick film for heat-sensitive stencil sheet. The produced film was a single layer from the cross-sectional observation by an electron microscope. The melting point was observed at 170 ° C.
【００６８】さらに、該フィルムを接着剤により薄葉紙
と貼り合わせて原紙を作成して印刷性、カールについて
評価を行った。評価結果は表１、表２に示す通り印刷性
もカールも不十分であった。Further, the film was attached to a thin paper with an adhesive to prepare a base paper, and printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were insufficient printability and curl.
【００６９】比較例４ エチレンテレフタレート８０モル％とエチレンナフタレ
ート２０モル％からなる共重合ポリエステル樹脂原料
（［η］＝０．７００、Ｔｍ＝２０５℃）をスクリュウ
径４０ｍｍの押出機を用いて、口金温度２７５℃で押出
し、直径６００ｍｍの冷却ドラム（２５℃）上にキャス
トして未延伸フィルムを作成した。Comparative Example 4 A copolyester resin raw material ([η] = 0.700, Tm = 205 ° C.) consisting of 80 mol% of ethylene terephthalate and 20 mol% of ethylene naphthalate was used in an extruder having a screw diameter of 40 mm. It was extruded at a die temperature of 275 ° C. and cast on a cooling drum (25 ° C.) having a diameter of 600 mm to prepare an unstretched film.
【００７０】該未延伸積層フィルムを９５℃に加熱され
たロールで長さ方向に３．５倍に延伸した後に、該延伸
フィルムをテンター式延伸機に送り込み、１００℃で幅
方向に３．６倍に延伸し、さらにテンター内で１００℃
×５秒間熱処理して厚さ０．８μｍの感熱孔版原紙用フ
ィルムを作成した。作成したフィルムは電子顕微鏡によ
る断面観察から１層であった。また、融点は、２００℃
に観測された。The unstretched laminated film was stretched 3.5 times in the lengthwise direction by a roll heated to 95 ° C., and then the stretched film was fed into a tenter type stretching machine to obtain 3.6 in the widthwise direction at 100 ° C. Stretched twice and then 100 ℃ in a tenter
A film for heat-sensitive stencil sheet having a thickness of 0.8 μm was prepared by heat treatment for 5 seconds. The produced film was a single layer from the cross-sectional observation by an electron microscope. The melting point is 200 ° C.
Was observed in.
【００７１】さらに、該フィルムを接着剤により薄葉紙
と貼り合わせて原紙を作成して印刷性、カールについて
評価を行った。評価結果は表１、表２に示す通り印刷性
もカールも不十分であった。Further, the film was attached to a thin paper with an adhesive to prepare a base paper, and printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were insufficient printability and curl.
【００７２】比較例５ ポリエチレンテレフタレート（［η］＝０．６１５、Ｔ
ｍ＝２６５℃）にポリヘキサメチレンテレフタレート
（［η］＝０．６５、Ｔｍ＝１４０℃）を５０：５０の
割合で混合した混合原料をスクリュウ径４０ｍｍの押出
機を用いて、口金温度２７５℃で押出し、直径６００ｍ
ｍの冷却ドラム（２５℃）上にキャストして未延伸フィ
ルムを作成した。Comparative Example 5 Polyethylene terephthalate ([η] = 0.615, T
(m = 265 ° C.) and polyhexamethylene terephthalate ([η] = 0.65, Tm = 140 ° C.) at a ratio of 50:50 were used to prepare a mixed raw material using an extruder having a screw diameter of 40 mm and a die temperature of 275 ° C. Extruded with a diameter of 600m
An unstretched film was prepared by casting on a cooling drum (25 ° C) of m.
【００７３】該未延伸フィルムを９２℃に加熱されたロ
ールで長さ方向に３．６倍に延伸した後に、該延伸フィ
ルムをテンター式延伸機に送り込み、９７℃で幅方向に
３．７倍に延伸し、さらにテンター内で１００℃×５秒
間熱処理して厚さ０．８μｍの感熱孔版原紙用フィルム
を作成した。作成したフィルムは電子顕微鏡による断面
観察から１層であった。また、融点は、１４２℃と２５
３℃に観測された。The unstretched film was stretched 3.6 times in the length direction with a roll heated to 92 ° C., and then the stretched film was fed into a tenter type stretching machine, and was stretched 3.7 times in the width direction at 97 ° C. And further heat-treated in a tenter at 100 ° C. for 5 seconds to prepare a 0.8 μm-thick film for heat-sensitive stencil sheet. The produced film was a single layer from the cross-sectional observation by an electron microscope. The melting point is 142 ° C and 25
Observed at 3 ° C.
【００７４】さらに、該フィルムを接着剤により薄葉紙
と貼り合わせて原紙を作成して印刷性、カールについて
評価を行った。評価結果は表１、表２に示す通り印刷性
もカールも不十分であった。Further, the film was attached to a thin paper with an adhesive to prepare a base paper, and printability and curl were evaluated. As shown in Tables 1 and 2, the evaluation results were insufficient printability and curl.
【００７５】[0075]
【表１】 [Table 1]
【表２】 [Table 2]
【００７６】[0076]
【発明の効果】本発明により、低エネルギーでも穿孔性
が良好で、かつエネルギーレベルの変化に応じた穿孔径
を得ることが可能な感熱孔版印刷原紙用積層フィルム及
び耐刷性と耐カール性に優れた感熱孔版印刷原紙が得ら
れる。EFFECTS OF THE INVENTION The present invention provides a laminated film for heat-sensitive stencil printing paper which has good perforation properties even at low energy and is capable of obtaining perforation diameter according to changes in energy level, and printing durability and curling resistance. An excellent stencil printing base paper can be obtained.
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 Ｂ３２Ｂ 27/12 Ｂ３２Ｂ 27/12 // Ｂ２９Ｌ 9:00 Continuation of front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location B32B 27/12 B32B 27/12 // B29L 9:00
Claims (4)
されてなることを特徴とする感熱孔版印刷原紙用積層フ
ィルム。1. A laminated film for heat-sensitive stencil printing base paper, comprising at least two layers of film.
異なることを特徴とする請求項１に記載の感熱孔版印刷
原紙用積層フィルム。2. The laminated film for heat-sensitive stencil printing base paper according to claim 1, wherein the melting points of the films constituting the layers differ by 5 ° C. or more.
二軸延伸フィルムであることを特徴とする請求項１また
は請求項２に記載の感熱孔版印刷原紙用積層フィルム。3. The laminated film for heat-sensitive stencil printing base paper according to claim 1 or 2, wherein the laminated film is a biaxially stretched film having a thickness of 0.1 to 10 μm.
されてなる感熱孔版印刷原紙用積層フィルムに多孔性支
持体が接着されてなることを特徴とする感熱孔版印刷原
紙。4. A heat-sensitive stencil printing base paper comprising a porous support adhered to a laminated film for heat-sensitive stencil printing base paper, which is composed of at least two layers of films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8081238A JPH09267575A (en) | 1996-04-03 | 1996-04-03 | Laminated film for heat-sensitive stencil printing original paper and heat-sensitive stencil printing original paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8081238A JPH09267575A (en) | 1996-04-03 | 1996-04-03 | Laminated film for heat-sensitive stencil printing original paper and heat-sensitive stencil printing original paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09267575A true JPH09267575A (en) | 1997-10-14 |
Family
ID=13740862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8081238A Pending JPH09267575A (en) | 1996-04-03 | 1996-04-03 | Laminated film for heat-sensitive stencil printing original paper and heat-sensitive stencil printing original paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09267575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006097483A1 (en) * | 2005-03-15 | 2006-09-21 | Inmold Biosystems A/S | Transferring materials to polymer surfaces |
-
1996
- 1996-04-03 JP JP8081238A patent/JPH09267575A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006097483A1 (en) * | 2005-03-15 | 2006-09-21 | Inmold Biosystems A/S | Transferring materials to polymer surfaces |
| AU2006224562B2 (en) * | 2005-03-15 | 2011-01-27 | Inmold Biosystems A/S | Transferring materials to polymer surfaces |
| US7985366B2 (en) | 2005-03-15 | 2011-07-26 | Inmold Biosystems A/S | Transferring materials to polymer surfaces |
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