JP2010082953A - Successively biaxially oriented polyester film and method of manufacturing the same - Google Patents
Successively biaxially oriented polyester film and method of manufacturing the same Download PDFInfo
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Abstract
Description
本発明はポリエステルフィルムに関する。特に端部でのラミネート強力の低下が少ないポリエステルフィルムに関する。 The present invention relates to a polyester film. In particular, the present invention relates to a polyester film with little decrease in laminate strength at the edge.
食品などの包装用途には、耐熱性、機械的強度、寸法安定性、印刷適性などに優れることから、二軸延伸ポリエステルフィルムがシーラントフィルムなどとラミネートされた上で使用されている。 For packaging applications such as foods, a biaxially stretched polyester film is used after being laminated with a sealant film or the like because of its excellent heat resistance, mechanical strength, dimensional stability, printability and the like.
しかし、二軸延伸を施し高配向・高結晶化させたポリエステルフィルムは、しばしば表層でへき開するため、ラミネートしてもデラミネーションを起こしやすく、包装用途では致命的な欠陥となっていた。横延伸のクリップ掴み跡近傍は、特にへき開しやすいという問題があった。これは、切断防止のためにクリップを冷却しているため、クリップ掴み跡近傍は熱セットが低温となって、配向緩和しにくくなるためと推察される。 However, a polyester film that has been biaxially stretched and highly oriented and crystallized often cleaves on the surface layer, so that it tends to cause delamination even when laminated, and has become a fatal defect in packaging applications. There was a problem that the vicinity of the laterally stretched clip grip was particularly easy to cleave. This is presumably because the clip is cooled to prevent cutting, so that the heat setting is low in the vicinity of the clip gripping trace, and the orientation is hardly relaxed.
へき開を防止するために、特許文献1には、包装用二軸配向ポリエステルフィルムとして、バランスされた適度な面配向係数を有するポリエステルフィルムが開示されている。 In order to prevent cleavage, Patent Document 1 discloses a polyester film having a balanced and appropriate plane orientation coefficient as a biaxially oriented polyester film for packaging.
しかし、配向させすぎないように延伸倍率を適度に落とし、さらにバランスされた配向を得るために縦延伸倍率と横延伸倍率を同程度にしているため、縦延伸倍率は高々3.8倍であった。 However, since the draw ratio is appropriately reduced so as not to be over-oriented, and the longitudinal draw ratio and the transverse draw ratio are made the same in order to obtain a balanced orientation, the longitudinal draw ratio is at most 3.8 times. It was.
原料価格の高騰を吸収するため、コストダウンの要望が高くなっている昨今、縦延伸倍率を低くすれば生産速度が遅くなってしまいコスト上不利であった。また、端部がへき開しやすいという問題に応えるものではなかった。
本発明は、以上のような従来技術の問題点を解決しようとするものであり、へき開を抑制し、端部のラミネート強力の低下が小さいポリエステルフィルム及びその製造方法を提供しようとするものである。 The present invention is intended to solve the above-mentioned problems of the prior art, and to provide a polyester film that suppresses cleavage and has a small decrease in laminate strength at the end and a method for producing the same. .
本発明者らは前記問題点を解決すべく鋭意検討した結果、特定の条件で縦延伸を施すことにより上記課題を解決できることを見出し本発明に至った。
すなわち、本発明の要旨は次の通りである。
(1)テンターにより横延伸されたフィルムのクリップ掴み跡から幅方向に10cmの位置のラミネート強力T10が下記式を満たす逐次二軸延伸ポリエステルフィルム。
T10>0.6N/cm
(2)さらに、クリップ掴み跡から幅方向に100cmの位置のラミネート強力T100が下記式を満たす請求項1記載の逐次二軸延伸ポリエステルフィルム。
T100>1.0N/cm
(3)延伸温度125〜135℃で4〜5倍に縦延伸することを特徴とする請求項1または2に記載の逐次二軸延伸ポリエステルフィルムの製造方法。
(4)縦延伸の後、延伸温度80〜140℃で3.5〜6.0倍に横延伸することを特徴とする請求項3記載の逐次二軸延伸ポリエステルフィルムの製造方法。
As a result of intensive studies to solve the above problems, the present inventors have found that the above problems can be solved by performing longitudinal stretching under specific conditions, and have reached the present invention.
That is, the gist of the present invention is as follows.
(1) A sequentially biaxially stretched polyester film in which a laminate strength T10 at a position of 10 cm in the width direction from a clip grip mark of a film stretched laterally by a tenter satisfies the following formula.
T10> 0.6 N / cm
(2) The sequential biaxially stretched polyester film according to claim 1, wherein the laminate strength T100 at a position of 100 cm in the width direction from the clip grip trace satisfies the following formula.
T100> 1.0 N / cm
(3) The method for producing a successively biaxially stretched polyester film according to claim 1 or 2, wherein the film is longitudinally stretched 4 to 5 times at a stretching temperature of 125 to 135 ° C.
(4) The method for producing a successively biaxially stretched polyester film according to claim 3, wherein the film is stretched transversely at a stretching temperature of 80 to 140 ° C and 3.5 to 6.0 times after the longitudinal stretching.
本発明によれば、125〜135℃の温度で縦延伸を行うため延伸倍率が高くなっても配向度があまり上がらず、へき開の少ないフィルムとなり、その結果、通常へき開の起こりやすい端部でもへき開しなくなり、より幅広く製品として使用でき、さらに高い縦延伸倍率を採用できるため高いコストダウンの効果が得られる。 According to the present invention, since the longitudinal stretching is performed at a temperature of 125 to 135 ° C., the degree of orientation does not increase so much even if the stretching ratio is increased, and the film is less cleaved. Therefore, it can be used as a wider range of products, and a higher longitudinal draw ratio can be adopted, so that a high cost reduction effect can be obtained.
本発明において、ポリエステルフィルムは以下のポリエステル樹脂を主成分とするフィルムであることが好ましい。ポリエステル樹脂として、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリプロピレンテレフタレートなどのポリアルキレンテレフタレートやポリエチレン−2,6−ナフタレート、ポリブチレン−2,6−ナフタレートなどのポリアルキレン−2,6−ナフタレート、ポリ乳酸などが挙げられる。これらはホモポリマーに限らず、ポリエステルの構成成分であるジカルボン酸および/またはジオール成分を、他のジカルボン酸および/またはジオールで置換した共重合体であってもよい。さらに本発明に用いられるポリエステル樹脂は、本発明の効果を阻害しない範囲で他のポリエステル樹脂を混合したものであってもよい。 In the present invention, the polyester film is preferably a film mainly composed of the following polyester resin. Examples of the polyester resin include polyalkylene terephthalates such as polyethylene terephthalate, polybutylene terephthalate, and polypropylene terephthalate, polyalkylene-2,6-naphthalates such as polyethylene-2,6-naphthalate, polybutylene-2,6-naphthalate, and polylactic acid. It is done. These are not limited to homopolymers, and may be copolymers obtained by substituting dicarboxylic acid and / or diol components, which are constituent components of polyester, with other dicarboxylic acids and / or diols. Furthermore, the polyester resin used in the present invention may be a mixture of other polyester resins as long as the effects of the present invention are not impaired.
機械的特性や熱的特性に優れる点から、ポリエステルフィルムとしては、ポリエチレンテレフタレートを主成分とするのが好適である。 From the viewpoint of excellent mechanical characteristics and thermal characteristics, the polyester film is preferably composed mainly of polyethylene terephthalate.
さらに必要に応じて、通常配合される各種の添加剤および改質剤、例えば、滑材、耐熱安定剤、紫外線吸収剤、光安定剤、酸化防止剤、帯電防止剤、粘着性付与剤、シール性改良剤、防曇剤、結晶核剤、離型剤、可塑剤、架橋剤、難燃剤および着色剤(顔料、染料など)などを配合してもよい。 Furthermore, various additives and modifiers that are usually blended as necessary, for example, lubricants, heat stabilizers, UV absorbers, light stabilizers, antioxidants, antistatic agents, tackifiers, seals A property improver, an antifogging agent, a crystal nucleating agent, a release agent, a plasticizer, a crosslinking agent, a flame retardant, and a colorant (pigment, dye, etc.) may be added.
本発明の逐次二軸延伸ポリエステルフィルムは、未延伸フィルムを縦延伸した後、横延伸することによって製造される。 The sequential biaxially stretched polyester film of the present invention is produced by longitudinally stretching an unstretched film and then laterally stretching.
本発明において製膜方法は特に限定されないが、冷却速度が速く高速製膜ができる静電印加法が好ましい。 In the present invention, the film forming method is not particularly limited, but an electrostatic application method capable of high speed film formation with a high cooling rate is preferable.
本発明では125〜135℃の延伸温度で4〜5倍の縦延伸を行うのが好ましい。延伸温度は特に好ましくは127〜130℃である。延伸倍率は特に好ましくは2〜3倍と1.5〜2.5倍の2段階に分けて、全体で4〜5倍とする。延伸温度が125℃未満の場合、縦方向への配向度が大きくなった結果、へき開が起こりやすくなる。延伸温度が135℃を超える場合、縦延伸ロールからの剥離不良が生じ延伸斑となりやすい。延伸倍率が4倍未満の場合、生産速度が上がらずコスト上不利となる。延伸倍率が5倍を超える場合、縦配向が大きくなった結果、へき開が起こりやすくなる。2段階で延伸すると縦配向を抑えやすくなるので特に好ましい。 In the present invention, it is preferable to perform longitudinal stretching 4 to 5 times at a stretching temperature of 125 to 135 ° C. The stretching temperature is particularly preferably 127 to 130 ° C. The draw ratio is particularly preferably divided into 2 to 3 times and 1.5 to 2.5 times, and the total is 4 to 5 times. When the stretching temperature is less than 125 ° C., cleavage is likely to occur as a result of an increase in the degree of orientation in the longitudinal direction. When the stretching temperature exceeds 135 ° C., a peeling failure from the longitudinal stretching roll is likely to occur, resulting in stretch spots. When the draw ratio is less than 4, the production speed is not increased, which is disadvantageous in cost. When the draw ratio exceeds 5 times, cleavage is likely to occur as a result of an increase in longitudinal orientation. The stretching in two stages is particularly preferable because it makes it easy to suppress the longitudinal orientation.
次に横延伸を行うが、縦延伸フィルムの両端をクリップに掴ませ、80〜140℃の温度で3.5〜6.0倍の倍率で延伸するのが好ましい。延伸温度が80℃未満の場合、延伸破断が起きる場合がある。延伸温度が140℃を超える場合、引張破断強度が低くなる場合がある。延伸倍率が3.5倍未満の場合、引張破断強度が低くなる場合がある。延伸倍率が6.0倍を超える場合、横配向が大きくなった結果へき開が起こりやすくなったり、延伸破断が起きる場合がある。 Next, transverse stretching is performed. It is preferable that both ends of the longitudinally stretched film are gripped by a clip and stretched at a temperature of 80 to 140 ° C. at a magnification of 3.5 to 6.0 times. When the stretching temperature is less than 80 ° C., stretching breakage may occur. If the stretching temperature exceeds 140 ° C, the tensile strength at break may be lowered. When the draw ratio is less than 3.5 times, the tensile strength at break may be lowered. When the draw ratio exceeds 6.0 times, cleavage may be likely to occur as a result of the increase in lateral orientation, or stretch breakage may occur.
フィルムを掴む直前のクリップの温度は50〜100℃とするのが好ましい。クリップの温度をこの範囲に保つために冷風で冷却することができる。クリップの温度が50℃未満であったり、100℃を超えると、延伸切断が発生しやすくなる。50℃未満では、延伸切断が発生しなかった場合でも、クリップ近傍のフィルム温度が上がらず、以下に述べる端部のラミネート強力が小さくなる。クリップ温度は、赤外放射式温度計等を用いて測定することができる。 The temperature of the clip immediately before gripping the film is preferably 50 to 100 ° C. In order to keep the temperature of the clip in this range, it can be cooled with cold air. If the temperature of the clip is less than 50 ° C. or exceeds 100 ° C., stretch cutting tends to occur. If it is less than 50 ° C., even when stretch cutting does not occur, the film temperature in the vicinity of the clip does not rise, and the laminate strength at the end described below becomes small. The clip temperature can be measured using an infrared radiation thermometer or the like.
二軸延伸されたフィルムは、続いて熱処理を行うが、熱処理の最高温度は240〜260℃が好ましい。熱処理温度が240℃より低いとフィルム表面の配向緩和が足りず、へき開を起こしやすく、また、フィルムの収縮率が大きくなる。260℃より高いとフィルムが溶断する場合があり、引張破断強度が低くなる。 The biaxially stretched film is subsequently subjected to a heat treatment, and the maximum temperature of the heat treatment is preferably 240 to 260 ° C. When the heat treatment temperature is lower than 240 ° C., the orientation of the film surface is not relaxed easily and cleavage is likely to occur, and the shrinkage rate of the film increases. If it is higher than 260 ° C., the film may melt, and the tensile strength at break will be low.
続いて幅方向に2〜6%の弛緩処理を行うのが好ましい。弛緩処理の温度は200〜240℃が好ましい。 Subsequently, it is preferable to perform a relaxation treatment of 2 to 6% in the width direction. The relaxation treatment temperature is preferably 200 to 240 ° C.
本発明のポリエステルフィルムに対して、ラミネート強力を高めるため易接着コートを施したり、コロナ処理などの表面処理を行うことができる。 The polyester film of the present invention can be subjected to an easy-adhesion coat or a surface treatment such as corona treatment in order to increase the laminate strength.
本発明のポリエステルフィルムにおいては、テンターで横延伸する際にクリップで掴まれた部分(以下掴み跡という)から幅方向に10cmの位置で測定されたラミネート強力(T10)が、下記式:
T10>0.6N/cm
の関係を満たす必要がある。掴み跡から10cmより外側は通常、延伸耳としてトリミングされリサイクルされるため、掴み跡から10cmの位置は製品となりうる最端部と位置づけられる。へき開が起こればラミネート強力が0.6N/cm以下となるため、T10は0.6N/cmより大きい必要があり、1.0N/cmより大きいことが好ましい。
In the polyester film of the present invention, the laminate strength (T10) measured at a position 10 cm in the width direction from a portion (hereinafter referred to as a grip mark) gripped by a clip when transversely stretched by a tenter is represented by the following formula:
T10> 0.6 N / cm
It is necessary to satisfy the relationship. Since the area outside 10 cm from the grip mark is usually trimmed and recycled as a stretched ear, the position 10 cm from the grip mark is positioned as the end of the product. If the cleavage occurs, the laminate strength becomes 0.6 N / cm or less, so T10 needs to be larger than 0.6 N / cm, and preferably larger than 1.0 N / cm.
また、本発明のポリエステルフィルムにおいては、掴み跡から幅方向に100cmの位置で測定されたラミネート強力(T100)が下記式:
T100>1.0N/cm
を満足することが好ましい。掴み跡から100cmより中央は掴み跡の影響がなくなると考えられる位置である。反対側の掴み跡からの距離の影響を考慮すると、フィルム幅は200cm以上が好ましく、生産性の点で300cm以上がさらに好ましい。T100は、1.5N/cmより大きいことがさらに好ましい。
Further, in the polyester film of the present invention, the laminate strength (T100) measured at a position of 100 cm in the width direction from the grip mark is represented by the following formula:
T100> 1.0 N / cm
Is preferably satisfied. The center from 100 cm from the grip mark is a position where the influence of the grip mark is considered to be eliminated. Considering the influence of the distance from the grip mark on the opposite side, the film width is preferably 200 cm or more, and more preferably 300 cm or more in terms of productivity. More preferably, T100 is greater than 1.5 N / cm.
なお、ラミネート強力が1.0N/cmを超えていれば通常の包装用途には問題なく使用できる。 In addition, if the laminate strength exceeds 1.0 N / cm, it can be used without any problem for ordinary packaging applications.
また、包装用途として、ポリエステルフィルムの引張破断強度はMD、TDの少なくとも一方が200MPa以上であることが好ましい。 Moreover, as a packaging use, it is preferable that at least one of MD and TD is 200 MPa or more as for the tensile fracture strength of a polyester film.
本発明のポリエステルフィルムの厚みは特に限定されないが、9〜50μmの範囲であれば好ましい。 Although the thickness of the polyester film of this invention is not specifically limited, If it is the range of 9-50 micrometers, it is preferable.
ラミネート強力、引張破断強力の測定は以下の方法で行った。 The laminate strength and tensile breaking strength were measured by the following methods.
(ラミネート強力)
ラミネート強力の測定法は、ラミネートフィルムからMD100mm×TD15mmの試験片を採取し、23℃、50%RH雰囲気中で引張試験機(島津製作所社製 AGS−100B型)を用い、Tピール法にて、引張速度300mm/minの条件で試験片の端部からフィルム界面を剥離し、強力を測定した。
(Strong laminate)
The laminate strength is measured by taking a test piece of MD100 mm × TD15 mm from the laminate film and using a tensile tester (AGS-100B type, manufactured by Shimadzu Corp.) in an atmosphere of 23 ° C. and 50% RH by the T peel method. The film interface was peeled from the end of the test piece under the condition of a tensile speed of 300 mm / min, and the strength was measured.
(引張破断強度)
JIS K―7127に記載の方法に準じて測定した。掴み跡から10cm及びフィルムの幅方向の中央位置で測定し、平均値を採用した。
(Tensile strength at break)
The measurement was performed according to the method described in JIS K-7127. Measurement was carried out at 10 cm from the grip mark and at the center position in the width direction of the film, and an average value was adopted.
実施例1
極限粘度0.69dl/gのポリエチレンテレフタレートを押出機にて溶融したのち、Tダイより押し出し、表面温度を20℃に温調した冷却ドラム上に静電印加法で密着させて急冷して厚さ280μmの未延伸フィルムを得た。続いて90℃に温調した予熱ロール群で予熱した後、130℃に温調した延伸ロール間で周速を変化させて2.3倍に縦延伸し、さらに130℃に温調した延伸ロール間で周速を変化させて2.0倍に縦延伸し厚さ50μmの縦延伸フィルムを得た。続いて縦延伸フィルムをテンター式延伸機に導き、予熱温度90℃、延伸温度120℃で5倍に横延伸し、続いて255℃で熱処理を行い、200℃で横方向に3%の弛緩処理も行った。掴み跡から10cmの位置でトリミングし、コロナ処理した後巻取り、幅480cm、厚さ12μmの二軸延伸ポリエステルフィルムを得た。
Example 1
After melting polyethylene terephthalate with an intrinsic viscosity of 0.69 dl / g with an extruder, it is extruded from a T-die and brought into close contact with a cooling drum whose surface temperature is adjusted to 20 ° C. by an electrostatic application method. An unstretched film of 280 μm was obtained. Next, after preheating with a preheating roll group adjusted to 90 ° C., the stretching speed was adjusted to 2.3 times by changing the peripheral speed between the drawing rolls adjusted to 130 ° C., and further adjusted to 130 ° C. A longitudinally stretched film having a thickness of 50 μm was obtained by longitudinally stretching 2.0 times while changing the peripheral speed. Subsequently, the longitudinally stretched film is guided to a tenter type stretching machine, and is stretched transversely at a preheating temperature of 90 ° C. and a stretching temperature of 120 ° C. by 5 times, followed by heat treatment at 255 ° C., and a relaxation treatment of 3% in the transverse direction at 200 ° C. Also went. Trimming was performed at a position of 10 cm from the grip mark, and after corona treatment, winding was performed to obtain a biaxially stretched polyester film having a width of 480 cm and a thickness of 12 μm.
巻取ったフィルムを端から900mmの幅でスリットしラミネート用原反を得た。コロナ処理面にドライラミネート接着剤(大日本インキ化学工業社製 ディックドライ LX401/SP60)を塗布量3.5g/m2となるようにし、その接着剤塗布面とシーラントフィルムのコロナ処理面(未延伸低密度ポリエチレンフィルム;東セロ(株)社製、TUX−FCS、50μm)をニップロールにて貼り合わせ(ニップ条件;80℃)、接着剤推奨のエージングを施し、ラミネートフィルムを得た。得られた900mm幅のラミネートフィルムの両端部は、一方の端部が掴み跡から10cmの部分であり、他方の端部が掴み跡から100cmの部分となる。この両端の位置でラミネート強力を測定して、T10、T100を求めた。 The wound film was slit with a width of 900 mm from the end to obtain an original film for lamination. A dry laminate adhesive (Dick Dry LX401 / SP60, manufactured by Dainippon Ink & Chemicals, Inc.) is applied to the corona-treated surface so that the coating amount is 3.5 g / m 2, and the adhesive-coated surface and the corona-treated surface of the sealant film (unfinished) A stretched low-density polyethylene film; manufactured by Tosero Co., Ltd., TUX-FCS, 50 μm) was bonded with a nip roll (nip condition: 80 ° C.) and subjected to adhesive recommended aging to obtain a laminate film. As for both ends of the obtained 900 mm wide laminate film, one end is a portion 10 cm from the grip mark, and the other end is a portion 100 cm from the grip mark. The laminate strength was measured at the positions at both ends, and T10 and T100 were obtained.
実施例2〜6、比較例1〜3
表1のように条件を変更した以外は実施例1と同様にして二軸延伸ポリエステルフィルムを製造した。なお、実施例6は縦延伸を1段階で行い、このときの延伸倍率を4.6倍とした。
Examples 2-6, Comparative Examples 1-3
A biaxially stretched polyester film was produced in the same manner as in Example 1 except that the conditions were changed as shown in Table 1. In Example 6, longitudinal stretching was performed in one stage, and the stretching ratio at this time was 4.6 times.
表1からわかるように、各実施例では、T10が0.6N/cm以上のフィルムが得られた。 As can be seen from Table 1, in each Example, a film having T10 of 0.6 N / cm or more was obtained.
実施例4、5は横延伸温度が高かったり、横延伸倍率が低かったので、TD方向の引張破断強度が低くなったが、フィルム物性は実用上問題のない範囲であった。 In Examples 4 and 5, since the transverse stretching temperature was high or the transverse stretching ratio was low, the tensile rupture strength in the TD direction was low, but the film physical properties were in a range where there was no practical problem.
実施例1と実施例6を対比すればわかるように、縦延伸を2段階としたほうがラミネート強力は向上した。 As can be seen from the comparison between Example 1 and Example 6, the laminate strength was improved when the longitudinal stretching was performed in two stages.
比較例1、3は高配向になったためへき開が起こりラミネート強力が低かった。 Since Comparative Examples 1 and 3 were highly oriented, cleavage occurred and the laminate strength was low.
比較例2は縦延伸ロールからの剥離不良のため延伸斑となったため、ラミネート強力、引張破断強力の評価は行わなかった。 Since Comparative Example 2 became stretch spots due to poor peeling from the longitudinal stretching roll, the laminate strength and tensile breaking strength were not evaluated.
Claims (4)
T10>0.6N/cm A sequentially biaxially stretched polyester film in which a laminate strength T10 at a position 10 cm in the width direction from a clip grip mark of a film stretched laterally by a tenter satisfies the following formula.
T10> 0.6 N / cm
T100>1.0N/cm Furthermore, the successive biaxially stretched polyester film according to claim 1, wherein the laminate strength T100 at a position of 100 cm in the width direction from the clip grip trace satisfies the following formula.
T100> 1.0 N / cm
4. The method for producing a successively biaxially stretched polyester film according to claim 3, wherein after the longitudinal stretching, the film is laterally stretched 3.5 to 6.0 times at a stretching temperature of 80 to 140 ° C. 5.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2469587A2 (en) | 2010-12-21 | 2012-06-27 | Mitsuboshi Diamond Industrial Co., Ltd. | Groove processing tool and groove processing device for thin-film solar cell |
JP2018076525A (en) * | 2017-12-20 | 2018-05-17 | 大日本印刷株式会社 | Polyester resin composition |
JP2020125489A (en) * | 2017-12-20 | 2020-08-20 | 大日本印刷株式会社 | Polyester resin composition |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04151230A (en) * | 1990-06-29 | 1992-05-25 | Diafoil Co Ltd | Biaxially oriented polyester film |
JPH055039A (en) * | 1991-03-14 | 1993-01-14 | Teijin Ltd | Polyethylene-2,6-naphthalate film |
JPH05117421A (en) * | 1991-10-31 | 1993-05-14 | Teijin Ltd | Polyethylene 2,6-naphthalate film |
JPH05117420A (en) * | 1991-10-31 | 1993-05-14 | Teijin Ltd | Polyethylene 2,6-naphthalate film |
JPH05212787A (en) * | 1992-02-06 | 1993-08-24 | Teijin Ltd | Polyethylene-2,6-naphthalate film |
JPH05254014A (en) * | 1991-10-24 | 1993-10-05 | Rhone Poulenc Films | Oriented semicrystalline polyester film, process and use as substrate for magnetical coating |
JPH0644553A (en) * | 1992-03-19 | 1994-02-18 | Teijin Ltd | Base film for magnetic recording tape |
JPH06128397A (en) * | 1992-10-14 | 1994-05-10 | Toray Ind Inc | Biaxially oriented polyester film |
JPH06136154A (en) * | 1992-09-29 | 1994-05-17 | Diafoil Co Ltd | Biaxially oriented polyester film |
JPH06167776A (en) * | 1992-11-30 | 1994-06-14 | Fuji Photo Film Co Ltd | Manufacture of photographic support |
JPH08230340A (en) * | 1995-02-28 | 1996-09-10 | Toray Ind Inc | Film for thermal transfer ribbon |
JPH08294963A (en) * | 1995-04-25 | 1996-11-12 | Toray Ind Inc | Polyester film |
JPH09300452A (en) * | 1996-05-13 | 1997-11-25 | Teijin Ltd | Polyester film |
JPH10144565A (en) * | 1996-11-08 | 1998-05-29 | Diafoil Co Ltd | Polyester film for capacitor |
JP2001159802A (en) * | 1999-09-19 | 2001-06-12 | Fuji Photo Film Co Ltd | Polyester substrate and silver halide photographic sensitive material |
-
2008
- 2008-09-30 JP JP2008253799A patent/JP5230326B2/en active Active
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04151230A (en) * | 1990-06-29 | 1992-05-25 | Diafoil Co Ltd | Biaxially oriented polyester film |
JPH055039A (en) * | 1991-03-14 | 1993-01-14 | Teijin Ltd | Polyethylene-2,6-naphthalate film |
JPH05254014A (en) * | 1991-10-24 | 1993-10-05 | Rhone Poulenc Films | Oriented semicrystalline polyester film, process and use as substrate for magnetical coating |
JPH05117421A (en) * | 1991-10-31 | 1993-05-14 | Teijin Ltd | Polyethylene 2,6-naphthalate film |
JPH05117420A (en) * | 1991-10-31 | 1993-05-14 | Teijin Ltd | Polyethylene 2,6-naphthalate film |
JPH05212787A (en) * | 1992-02-06 | 1993-08-24 | Teijin Ltd | Polyethylene-2,6-naphthalate film |
JPH0644553A (en) * | 1992-03-19 | 1994-02-18 | Teijin Ltd | Base film for magnetic recording tape |
JPH06136154A (en) * | 1992-09-29 | 1994-05-17 | Diafoil Co Ltd | Biaxially oriented polyester film |
JPH06128397A (en) * | 1992-10-14 | 1994-05-10 | Toray Ind Inc | Biaxially oriented polyester film |
JPH06167776A (en) * | 1992-11-30 | 1994-06-14 | Fuji Photo Film Co Ltd | Manufacture of photographic support |
JPH08230340A (en) * | 1995-02-28 | 1996-09-10 | Toray Ind Inc | Film for thermal transfer ribbon |
JPH08294963A (en) * | 1995-04-25 | 1996-11-12 | Toray Ind Inc | Polyester film |
JPH09300452A (en) * | 1996-05-13 | 1997-11-25 | Teijin Ltd | Polyester film |
JPH10144565A (en) * | 1996-11-08 | 1998-05-29 | Diafoil Co Ltd | Polyester film for capacitor |
JP2001159802A (en) * | 1999-09-19 | 2001-06-12 | Fuji Photo Film Co Ltd | Polyester substrate and silver halide photographic sensitive material |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2469587A2 (en) | 2010-12-21 | 2012-06-27 | Mitsuboshi Diamond Industrial Co., Ltd. | Groove processing tool and groove processing device for thin-film solar cell |
JP2018076525A (en) * | 2017-12-20 | 2018-05-17 | 大日本印刷株式会社 | Polyester resin composition |
JP2020125489A (en) * | 2017-12-20 | 2020-08-20 | 大日本印刷株式会社 | Polyester resin composition |
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