JPH06234868A - Polyester film for forming - Google Patents
Polyester film for formingInfo
- Publication number
- JPH06234868A JPH06234868A JP2110793A JP2110793A JPH06234868A JP H06234868 A JPH06234868 A JP H06234868A JP 2110793 A JP2110793 A JP 2110793A JP 2110793 A JP2110793 A JP 2110793A JP H06234868 A JPH06234868 A JP H06234868A
- Authority
- JP
- Japan
- Prior art keywords
- film
- thermoplastic polyester
- polyester
- molding
- colorant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920006267 polyester film Polymers 0.000 title claims abstract description 19
- 229920000728 polyester Polymers 0.000 claims abstract description 51
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 44
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 44
- 239000003086 colorant Substances 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims description 23
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 235000014692 zinc oxide Nutrition 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 2
- -1 polybutylene terephthalate Polymers 0.000 abstract description 17
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 10
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 9
- 229920001707 polybutylene terephthalate Polymers 0.000 abstract description 9
- 235000013305 food Nutrition 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000000873 masking effect Effects 0.000 abstract 2
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 description 11
- 230000008018 melting Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000009477 glass transition Effects 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010954 inorganic particle Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical group [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000007666 vacuum forming Methods 0.000 description 2
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- 102100037709 Desmocollin-3 Human genes 0.000 description 1
- 101000968042 Homo sapiens Desmocollin-2 Proteins 0.000 description 1
- 101000880960 Homo sapiens Desmocollin-3 Proteins 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000003484 crystal nucleating agent Substances 0.000 description 1
- QYQADNCHXSEGJT-UHFFFAOYSA-N cyclohexane-1,1-dicarboxylate;hydron Chemical compound OC(=O)C1(C(O)=O)CCCCC1 QYQADNCHXSEGJT-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は成形用フィルムに関す
る、更に詳しくは、医療用、一般用、食品用トレー、ブ
リスターなどに用いられる成形用フィルムに関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding film, and more particularly to a molding film used for medical, general purpose, food trays, blisters and the like.
【０００２】[0002]
【従来の技術】ポリエステルフィルムを熱成形して食品
等の容器として用いる試みは従来よりさまざまな提案が
なされて来ている。例えば、特開昭４７−３９１、特開
昭５１−３８３、特公昭６２−１９０９では、未延伸の
ポリエチレンテレフタレート、該共重合体、該ブレンド
体を熱成形することが提案されている。また、特公昭５
９−５１４０７では、低配向ポリエステルフィルムが成
形用に用いることが提案されている。2. Description of the Related Art Various attempts have hitherto been made in attempts to thermoform polyester films and use them as containers for foods and the like. For example, JP-A-47-391, JP-A-51-383, and JP-B-62-1909 propose to thermoform unstretched polyethylene terephthalate, the copolymer, and the blend. In addition, Japanese Patent Publication Sho 5
9-51407 it is proposed to use low orientation polyester films for molding.
【０００３】[0003]
【発明が解決しようとする問題点】しかしながら、これ
らは全て透明タイプの成形用フィルムであり、白色タイ
プの提案はされていない。座薬などのように内容物の色
を見せないタイプが多い用途では白色フィルムが望まれ
ている。However, these are all transparent type molding films, and white type has not been proposed. A white film is desired for many applications such as suppositories that do not show the color of the contents.
【０００４】本発明は、金型との融着が無く、広い温度
範囲で成形が可能な成形用白色フィルムに関するもので
ある。The present invention relates to a white film for molding which can be molded in a wide temperature range without fusion with a mold.
【０００５】[0005]
【課題を解決するための手段】本発明は光学濃度が０．
３以上であることを特徴とする成形用ポリエステルフィ
ルム関するものである。The present invention has an optical density of 0.
The present invention relates to a polyester film for molding which is characterized by being 3 or more.
【０００６】本発明成形用ポリエステルフィルムの光学
濃度は、０．３以上である。光学濃度が０．３未満であ
ると本発明の目的に達しないので好ましくない。The optical density of the molding polyester film of the present invention is 0.3 or more. If the optical density is less than 0.3, the object of the present invention cannot be achieved, which is not preferable.
【０００７】本発明熱可塑性ポリエステルＡとは融点が
１８０℃以上であることが好ましく、より好ましくは２
００℃以上である。融点が低過ぎると、熱成形時に金型
に融着しやすく問題を生じる。また該ポリエステルの冷
結晶化温度（Ｔｃｃ）とガラス転移温度（Ｔｇ）との差
（Ｔｃｃ−Ｔｇ）で定義されるΔＴｃｇは５０℃以下で
あることが好ましく、さらに好ましくは４０℃以下であ
る。ΔＴｃｇが大き過ぎると、成形時に金型に有着し易
くなるばかりか、フィルム同士のブロッキング性が増大
する。The thermoplastic polyester A of the present invention preferably has a melting point of 180 ° C. or higher, more preferably 2
The temperature is 00 ° C or higher. If the melting point is too low, it tends to be fused to the mold during thermoforming, causing a problem. Further, ΔTcg defined by the difference (Tcc-Tg) between the cold crystallization temperature (Tcc) and the glass transition temperature (Tg) of the polyester is preferably 50 ° C. or less, more preferably 40 ° C. or less. If ΔTcg is too large, not only will it easily adhere to the mold during molding, but the blocking property between the films will increase.
【０００８】さらにポリエステルＡは結晶融解エネルギ
ーが６ｃａｌ／ｇ以上であると粘着性、ブロッキング性
の改良効果が大きいので好ましい。Further, it is preferable that the polyester A has a crystal melting energy of 6 cal / g or more because the effect of improving the tackiness and blocking property is great.
【０００９】このような特性を有する樹脂としては、ポ
リブチレンテレフタレート、ポリブチレンテレフタレー
ト・イソフタレート共重合体、ポリブチレンナフタレー
ト等が例示されるが、特に好ましいのは、ポリブチレン
テレフタレートであり、他の共重合成分を含有していた
としても２０モル％以下であり、ＩＶが０．５〜１．６
ｄｌ／ｇの範囲のものが成形適性の観点から好ましい。Examples of the resin having such characteristics include polybutylene terephthalate, polybutylene terephthalate / isophthalate copolymer, polybutylene naphthalate and the like. Among them, polybutylene terephthalate is particularly preferable, and others. 20 mol% or less, even if it contains the copolymerization component of, IV of 0.5 to 1.6
The range of dl / g is preferable from the viewpoint of moldability.
【００１０】本発明ポリエステルＡに含有される着色剤
の添加量は５〜５０重量％が好ましく、より好ましくは
１０〜３０重量％である。添加量が５重量％未満だと本
発明の目的が達せられないので好ましくない。The addition amount of the colorant contained in the polyester A of the present invention is preferably 5 to 50% by weight, more preferably 10 to 30% by weight. If the addition amount is less than 5% by weight, the object of the present invention cannot be achieved, which is not preferable.
【００１１】また、添加量が５０重量％を越えるとフィ
ルム表面が脆くなり加工工程でフィルムに傷がついた
り、フィルムが削れて着色剤が脱落する可能性があるた
めに好ましくない。If the amount added exceeds 50% by weight, the surface of the film becomes brittle and the film may be scratched in the processing step, or the film may be scraped and the coloring agent may fall off, which is not preferable.
【００１２】本発明ポリエステルフィルムを構成する熱
可塑性ポリエステルＢはガラス転移点温度（Ｔｇ）が５
０℃以上でΔＴｃｇが６０℃以上であることが好まし
く、さらに好ましくは７０℃以上である。ΔＴｃｇが小
さ過ぎると成形性に劣り、肉厚が不均一になる。さらに
成形性を向上し、得られた成形体の剛性を良好とするた
めにガラス転移温度は６０℃以上であることが好まし
く、さらにに好ましくは、７０℃以上である。The thermoplastic polyester B constituting the polyester film of the present invention has a glass transition temperature (Tg) of 5
At 0 ° C. or higher, ΔTcg is preferably 60 ° C. or higher, more preferably 70 ° C. or higher. If ΔTcg is too small, the moldability becomes poor and the wall thickness becomes uneven. The glass transition temperature is preferably 60 ° C. or higher, and more preferably 70 ° C. or higher in order to further improve the moldability and improve the rigidity of the obtained molded product.
【００１３】本発明で熱可塑性ポリエステルＢとして好
ましい樹脂は、ポリエチレンテレフタレートを主成分と
する共重合ポリエステルであって、特に好ましい共重合
成分としては、１，４ブタンジオール、ネオペンチルグ
リコール、シクロヘキサンジメタノール、シクロヘキサ
ンジカルボン酸、イソフタル酸，２，６−ナフタレンジ
カルボン酸の少なくとも１種の共重合成分を２〜４５モ
ル含有するポリエチレンテレフタレートであることが好
ましい。The resin preferable as the thermoplastic polyester B in the present invention is a copolymerized polyester containing polyethylene terephthalate as a main component, and particularly preferable copolymerized components include 1,4 butanediol, neopentyl glycol and cyclohexanedimethanol. Polyethylene terephthalate containing 2 to 45 mol of at least one copolymerization component of cyclohexanedicarboxylic acid, isophthalic acid and 2,6-naphthalenedicarboxylic acid is preferable.
【００１４】さらに、結晶融解エネルギーが３〜２０ｃ
ａｌ／ｇの範囲であると耐熱性成形性共に良好となるの
で好ましい。Further, the crystal melting energy is 3 to 20 c.
The range of al / g is preferable because heat resistance moldability is improved.
【００１５】さらにポリエステルＢの触媒系は析出粒子
を作らない、ゲルマニウム系、チタン系触媒であること
が透明性、成形性を良好とする上で好ましく、エステル
交換触媒、重合触媒のいずれかがゲルマニウム系である
ことが好ましい。Further, the catalyst system of polyester B is preferably a germanium-based or titanium-based catalyst which does not produce precipitated particles, in order to improve transparency and moldability, and either the transesterification catalyst or the polymerization catalyst is germanium. It is preferably a system.
【００１６】本発明ポリエステルＢに含有される着色剤
の添加量は、１０重量％以下であるのが好ましい。添加
量が１０重量％を越えるとフィルムが脆くなり、加工工
程でフィルムに張力をかけた場合にフィルムが破断した
り、割れたりする可能性があるために好ましくない。The addition amount of the colorant contained in the polyester B of the present invention is preferably 10% by weight or less. If the amount added exceeds 10% by weight, the film becomes brittle and may be broken or cracked when tension is applied to the film in the processing step, which is not preferable.
【００１７】本発明において、熱可塑性ポリエステルＡ
に対する着色剤の添加量は、熱可塑性ポリエステルＢに
対する着色剤の添加量よりも多い方が好ましい。熱可塑
性ポリエステルＡに対する着色剤の添加量よりも熱可塑
性ポリエステルＢに対する着色剤の添加量の方が多い
と、フィルム全体が脆くなり、加工工程においてフィル
ムに張力をかけた場合などにフィルムが破断する恐れが
あるので好ましくない。In the present invention, the thermoplastic polyester A
The amount of the colorant added to the thermoplastic polyester B is preferably larger than the amount of the colorant added to the thermoplastic polyester B. If the amount of the colorant added to the thermoplastic polyester B is larger than the amount of the colorant added to the thermoplastic polyester A, the entire film becomes brittle, and the film breaks when tension is applied to the film in the processing step. There is a fear that it is not preferable.
【００１８】本発明の熱可塑性ポリエステルＡ、Ｂに含
有される着色剤としては、白色系が多く、これには酸化
ＴｉＯ2 、特にルチル型酸化チタン、亜鉛華ＺｎＯ、リ
トホンＺｎＳＢａＳＯ4 などから選ばれた無機粒子が挙
げられる。Many of the colorants contained in the thermoplastic polyesters A and B of the present invention are white, and are selected from oxides of TiO 2 , particularly rutile type titanium oxide, zinc white ZnO, lithophone ZnSBaSO 4, and the like. And inorganic particles.
【００１９】また、これら白色無機粒子の平均粒径は
０．１〜４μｍ、好ましくは０．０１〜１０μｍであ
る。平均粒径がこの範囲より小さいとフィルムの滑りが
悪く加工適性が不良になる傾向である。一方、大きすぎ
るとフィルムの表面がざらつき品位が低下してしまう。The average particle size of these white inorganic particles is 0.1 to 4 μm, preferably 0.01 to 10 μm. If the average particle size is smaller than this range, the film tends to slip poorly and the processability tends to be poor. On the other hand, if it is too large, the surface of the film becomes rough and the quality deteriorates.
【００２０】本発明ポリエステルフィルムの構成は熱可
塑性ポリエステルＡが熱可塑性ポリエステルＢの両面に
積層された構成を有するが、この場合、ポリエステルＢ
の両面に積層される熱可塑性ポリエステルＡは同一であ
ることが成形性を良好とする上で好ましいが、上記した
熱可塑性ポリエステルＡの範囲にある樹脂であれば、そ
れぞれ２つの層が異なっていても良い。The polyester film of the present invention has a structure in which thermoplastic polyester A is laminated on both sides of thermoplastic polyester B. In this case, polyester B is used.
It is preferable for the thermoplastic polyester A to be laminated on both sides of the same to improve moldability, but if the resin is within the range of the thermoplastic polyester A, the two layers are different from each other. Is also good.
【００２１】本発明フィルムは熱可塑性ポリエステルＡ
と熱可塑性ポリエステルＢとの構成厚み比率（Ａ：Ｂ）
が１：１００〜１：５の範囲であることが好ましく、よ
り好ましくは１：８０〜１：１０の範囲である。積層比
が上記範囲よりも大き過ぎる場合、成形時に粘着した
り、耐熱性が低下したりする等の問題を生じる。一方、
積層比が小さ過ぎる場合、均一成形性が低下し、偏肉等
の問題を生じる。The film of the present invention comprises a thermoplastic polyester A
Thickness ratio of (A) and (B) of thermoplastic polyester
Is preferably in the range of 1: 100 to 1: 5, more preferably in the range of 1:80 to 1:10. If the lamination ratio is too large, it causes problems such as sticking during molding and deterioration of heat resistance. on the other hand,
If the lamination ratio is too small, the uniform formability is lowered and problems such as uneven thickness occur.
【００２２】本発明ポリエステルフィルムには帯電防止
剤、有機、無機のスリップ剤、熱安定剤、酸化防止剤、
結晶核剤、耐侯剤、ＵＶ吸収剤、顔料等の添加剤を目的
にあわせて用いることができる。The polyester film of the present invention contains an antistatic agent, an organic or inorganic slip agent, a heat stabilizer, an antioxidant,
Additives such as crystal nucleating agents, weathering agents, UV absorbers and pigments can be used according to the purpose.
【００２３】本発明成形用ポリエステルフィルムの厚み
は用途に応じて設定されるべきものであるが、通常２５
〜２０００μｍの範囲である。The thickness of the polyester film for molding of the present invention should be set according to the application, but is usually 25.
˜2000 μm.
【００２４】次に、本発明ポリエステルフィルムの製造
方法について説明するが、もちろんこれに限定されるも
のではない。Next, a method for producing the polyester film of the present invention will be described, but the method is not limited to this.
【００２５】白色無機粒子を含有した熱可塑性ポリエス
テルＡと熱可塑性ポリエステルＢとをそれぞれ別の押出
機を用いて溶融押出し、フィードブロックあるいは、マ
ニホールド複合口金を用いてＡ／Ｂ／Ａの構成を有する
フィルムまたは円筒状に溶融押出する。次いで、該フィ
ルムまたは円筒を熱可塑性ポリエステルＡの冷結晶化温
度以下、好ましくはガラス転移温度以下で急冷キャスト
する。こうして得られたキャストフィルムを熱可塑性ポ
リエステルＡのＴｃｃ−１０〜Ｔｃｃ＋５０℃前後に加
熱したロールに接触させて巻取る。必要に応じて、該熱
処理後あるいは熱処理前に、コロナ放電処理、プラズマ
処理等の放電処理、コーティング、エンボス加工等を施
しても良い。The thermoplastic polyester A containing the white inorganic particles and the thermoplastic polyester B are melt-extruded by using different extruders, and the composition is A / B / A by using a feed block or a manifold composite die. Melt extruded into film or cylinder. The film or cylinder is then rapidly cast at a temperature below the cold crystallization temperature of the thermoplastic polyester A, preferably below the glass transition temperature. The cast film thus obtained is wound by contacting it with a roll of thermoplastic polyester A heated to about Tcc-10 to Tcc + 50 ° C. If necessary, corona discharge treatment, discharge treatment such as plasma treatment, coating, embossing, etc. may be performed after or before the heat treatment.
【００２６】次いで、本発明成形用白色フィルムを成形
する場合、特に成形方式は限定されるものでは、なく、
公知の真空成形、圧空成形、プラクアシスト成形等様々
な成形方式で成形可能である。Next, when molding the white film for molding of the present invention, the molding method is not particularly limited, and
It can be formed by various forming methods such as known vacuum forming, pressure forming, and plaque assist forming.
【００２７】[0027]
【特性の測定方法及び効果の評価方法】次に本発明フィ
ルムの特性の評価方法および効果の評価方法について説
明する。[Characteristic Measuring Method and Effect Evaluation Method] Next, the characteristic evaluating method and effect evaluating method of the film of the present invention will be described.
【００２８】（１）固有粘度（ＩＶ） ｏ−クロロフェノールを溶媒として、２５℃で測定す
る。単位はｄｌ／ｇ。(1) Intrinsic viscosity (IV) Measured at 25 ° C. using o-chlorophenol as a solvent. The unit is dl / g.
【００２９】（２）融点（Ｔｍ）、ガラス転移温度（Ｔ
ｇ）、冷結晶化温度（Ｔｃｃ）、融解エネルギー 示差走査型熱量計ＤＳＣ２（パーキンエルマー社製）を
用いて求める。(2) Melting point (Tm), glass transition temperature (T
g), cold crystallization temperature (Tcc), melting energy Determined using a differential scanning calorimeter DSC2 (manufactured by Perkin Elmer Co.).
【００３０】測定は、サンプル１０ｍｇを窒素気流下に
て、２８０℃×５分間溶融保持し、次いで液体窒素を用
いて冷却した。In the measurement, 10 mg of the sample was melt-held under a nitrogen stream at 280 ° C. for 5 minutes and then cooled with liquid nitrogen.
【００３１】こうして得られたサンプルを１０℃／分の
昇温速度で昇温していった際に、ガラス状態からゴム状
態への転移にもとずく比熱変化を読み取りこの温度をガ
ラス転移温度（Ｔｇ）とする。また、結晶化に伴う発熱
ピーク温度を冷結晶化温度（Ｔｃｃ）、結晶融解に基づ
く吸熱ピーク温度を融点（Ｔｍ）とした。When the sample thus obtained was heated at a heating rate of 10 ° C./min, the change in specific heat due to the transition from the glass state to the rubber state was read and this temperature was read as the glass transition temperature ( Tg). The exothermic peak temperature associated with crystallization was defined as the cold crystallization temperature (Tcc), and the endothermic peak temperature associated with crystal melting was defined as the melting point (Tm).
【００３２】また、結晶融解エネルギーは融解ピーク面
積より、金属インジウム融解エネルギーを基準として測
定した。The crystal melting energy was measured from the melting peak area with reference to the metal indium melting energy.
【００３３】（３）光学濃度 マクベス社製透過濃度計ＴＤ−５０４で、厚さ１００μ
ｍのフィルムの可視光透過濃度を測定し隠蔽力を判定し
た（数値が大きいほど隠蔽力大）。(3) Optical Density Using a transmission densitometer TD-504 manufactured by Macbeth Co., a thickness of 100 μm
The visible light transmission density of the m film was measured to determine the hiding power (the larger the value, the greater the hiding power).
【００３４】ここでいう透過濃度とは、次式により算出
される。The transmission density here is calculated by the following equation.
【００３５】Ｄ＝−ｌｏｇ（Ｔ／１００） ここでＤ：透過濃度 Ｔ：可視光透過率（％）D = -log (T / 100) where D: transmission density T: visible light transmittance (%)
【００３６】（４）白色度 酸化マグネシウムの白色度を１００％とした場合の白度
計（ＫＥＴＴ Ｃ−１）による比較値で示す。(4) Whiteness The whiteness of magnesium oxide is shown as a comparative value by a whiteness meter (KETT C-1) when the whiteness is 100%.
【００３７】（５）成形性 センバ鉄工（株）製（ＶＡＳ−３３Ｐ）真空成形機を用
いて成形を行なった。(5) Formability Molding was performed using a vacuum molding machine (VAS-33P) manufactured by Semba Iron Works Co., Ltd.
【００３８】成形性の判断 Ａ：偏肉がなく均一成形可能 Ｂ：偏肉はあるものの成形可能 Ｃ：金型ブロッキングあるいはクラックを生じて成形不
可Judgment of moldability A: Uniform molding without uneven thickness B: Moldable with uneven thickness C: Mold blocking or cracking is impossible
【００３９】（６）すべり性 ＡＳＴＭ−Ｄ−１８９４Ｂ−６３に従い、スリップテス
ターを用い静摩擦係数（μｓ）ならびに動摩擦係数（μ
ｄ）を測定した。(6) Sliding property According to ASTM-D-1894B-63, a static friction coefficient (μs) and a dynamic friction coefficient (μ) are measured by using a slip tester.
d) was measured.
【００４０】すべり性の判断 ○：μｓが１．６未満 △：μｓが１．６以上、２．５未満 ×：μｓが２．５以上Judgment of slip property ○: μs is less than 1.6 Δ: μs is 1.6 or more and less than 2.5 x: μs is 2.5 or more
【００４１】（７）強靭性 強靭性は、フィルムのヤング率で評価した。(7) Toughness The toughness was evaluated by the Young's modulus of the film.
【００４２】ＡＳＴＭ−Ｄ−８８２に規定された方法に
従って、インストロンタイプの引張試験機を用いて、２
５℃、６５％ＲＨにて測定した。According to the method specified in ASTM-D-882, using an Instron type tensile tester, 2
It was measured at 5 ° C. and 65% RH.
【００４３】○：２００Ｋｇ／ｍｍ2 以上 △：１５０以上、２００Ｋｇ／ｍｍ2 未満 ×：１５０Ｋｇ／ｍｍ2 未満◯: 200 kg / mm 2 or more Δ: 150 or more, less than 200 kg / mm 2 ×: less than 150 kg / mm 2
【００４４】[0044]
【実施例】次に実施例を用いて本発明の実施態様につい
て詳細に説明する。EXAMPLES Next, embodiments of the present invention will be described in detail with reference to examples.
【００４５】実施例１ 熱可塑性ポリエステルＡとしてポリブチレンタレフタレ
ート（ＰＢＴ、Ｔｍ＝２２０℃、ＩＶ＝１．２ｄｌ／
ｇ）、熱可塑性ポリエステルＢとして平均粒径０．２μ
ｍの酸化チタンを１０ｗｔ％含有したポリエチレンテレ
フタレート（Ｔｍ＝２６５℃、ＩＶ＝０．６５ｄｌ／
ｇ）とを用意し、それぞれ別の押出機を用いて熱可塑性
ポリエステルＡは２５０℃で、熱可塑性ポリエステルＢ
は２８０℃で溶融押出し、フイードブロックで積層し、
Ｔ型口金よりＡ／Ｂ／Ａになるように溶融フィルムを押
出し、２５℃のキャスティングドラム上で冷却固化し、
次いで、５０℃の熱ロールに接触させ巻取った。こうし
て得られたフィルムは全厚みが１００μｍ、積層比
（Ａ：Ｂ：Ａ）が１：１８：１であった。強靭性は△で
あったが、成形性、すべり性、光学濃度に優れていた。Example 1 Polybutylene terephthalate (PBT, Tm = 220 ° C., IV = 1.2 dl / as thermoplastic polyester A)
g), the thermoplastic polyester B has an average particle size of 0.2 μm.
Polyethylene terephthalate containing 10% by weight of titanium oxide (Tm = 265 ° C., IV = 0.65 dl /
g) and using different extruders, the thermoplastic polyester A is at 250 ° C. and the thermoplastic polyester B is
Melt-extruded at 280 ° C, laminated with a feed block,
The molten film is extruded from the T-type die so as to be A / B / A, cooled and solidified on a casting drum at 25 ° C.,
Then, it was brought into contact with a hot roll of 50 ° C. and wound up. The film thus obtained had a total thickness of 100 μm and a lamination ratio (A: B: A) of 1: 18: 1. The toughness was Δ, but the moldability, slipperiness, and optical density were excellent.
【００４６】実施例２ 熱可塑性ポリエステルＡとして平均粒径０．２μｍの酸
化チタンを１０ｗｔ％含有したポリブチレンタレフタレ
ート（ＰＢＴ、Ｔｍ＝２２０℃、ＩＶ＝１．２ｄｌ／
ｇ）、熱可塑性ポリエステルＢとしてポリエチレンテレ
フタレートを用いて、実施例１に準じて表１のごとくフ
ィルムを得た。いずれも成形性、すべり性、光学濃度、
強靭性に優れていた。Example 2 Polybutylene terephthalate (PBT, Tm = 220 ° C., IV = 1.2 dl /) containing 10 wt% of titanium oxide having an average particle size of 0.2 μm as the thermoplastic polyester A.
g) and using polyethylene terephthalate as the thermoplastic polyester B, a film was obtained as in Table 1 according to Example 1. Moldability, slipperiness, optical density,
It had excellent toughness.
【００４７】実施例３ 熱可塑性ポリエステルＡとして平均粒径０．２μｍの酸
化チタンを１０ｗｔ％含有した高ＩＶポリエチレンテレ
フタレート（ＰＥＴ、Ｔｍ＝２６５℃、ＩＶ＝１．０ｄ
ｌ／ｇ）、熱可塑性ポリエステルＢとしてポリエチレン
テレフタレートを用いて、実施例１に準じて表１のごと
くフィルムを得た。すべり性は△であったが、成形性、
光学濃度、強靭性に優れていた。Example 3 High IV polyethylene terephthalate (PET, Tm = 265 ° C., IV = 1.0d) containing 10 wt% of titanium oxide having an average particle size of 0.2 μm as the thermoplastic polyester A.
1 / g) and polyethylene terephthalate as the thermoplastic polyester B were used to obtain a film according to Example 1 as shown in Table 1. The slipperiness was △, but the moldability,
Excellent optical density and toughness.
【００４８】比較例１ 実施例１において熱可塑性ポリエステルＡ、熱可塑性ポ
リエステルＢに着色剤を添加しない以外は同様に製膜を
行ない、厚さ１００μｍのフィルムを得た。成形性、す
べり性、強靭性は良好であったが光学濃度が不良であっ
た。Comparative Example 1 A film having a thickness of 100 μm was obtained in the same manner as in Example 1 except that the coloring agent was not added to the thermoplastic polyester A and the thermoplastic polyester B. Moldability, slipperiness and toughness were good, but optical density was poor.
【００４９】実施例４ 実施例１において熱可塑性ポリエステルＡ、熱可塑性ポ
リエステルＢともに平均粒径０．２μｍの酸化チタンを
１０ｗｔ％含有したポリエチレンテレフタレートを使用
して単独膜として溶融押出し、実施例１に準じて冷却固
化し、１００μｍのフィルムを得た。成形性のランクは
Ｂ、すべり性、強靭性は△であったが、光学濃度が優れ
ていた。Example 4 In Example 1, both the thermoplastic polyester A and the thermoplastic polyester B were melt extruded as a single film using polyethylene terephthalate containing 10 wt% of titanium oxide having an average particle size of 0.2 μm. According to the same manner, it was solidified by cooling to obtain a film of 100 μm. The moldability rank was B, the slip property and the toughness were Δ, but the optical density was excellent.
【００５０】実施例５ 実施例１において熱可塑性ポリエステルＡ、熱可塑性ポ
リエステルＢとして、ともに平均粒径０．２μｍの酸化
チタンを１０ｗｔ％含有したポリブチレンテレフタレー
トを使用して単独膜として溶融押出し、実施例１に準じ
て冷却固化し、１００μｍのフィルムを得た。成形性の
ランクはＢであったが、すべり性、光学濃度、強靭性と
も優れていた。Example 5 In Example 1, as the thermoplastic polyester A and the thermoplastic polyester B, polybutylene terephthalate containing 10 wt% of titanium oxide having an average particle size of 0.2 μm was used and melt extruded as a single film. It was cooled and solidified according to Example 1 to obtain a 100 μm film. The rank of moldability was B, but it was also excellent in slipperiness, optical density and toughness.
【００５１】[0051]
【表１】 [Table 1]
【表２】 [Table 2]
【００５２】[0052]
【発明の効果】本発明フィルムは、熱成形性に優れ、耐
熱性にも優れていることから、真空成形、圧空成形、プ
ラクアシスト成形等様々な成形方式対応できる。Since the film of the present invention is excellent in thermoformability and heat resistance, it can be applied to various forming methods such as vacuum forming, pressure forming and plaque assist forming.
Claims (6)
とする成形用ポリエステルフィルム。1. A polyester film for molding, which has an optical density of 0.3 or more.
面に着色剤が含有された熱可塑性ポリエステルＡが積層
されてなることを特徴とする請求項１に記載の成形用ポ
リエステルフィルム。2. The polyester film for molding according to claim 1, wherein the thermoplastic polyester A containing a colorant is laminated on at least one side of the thermoplastic polyester B.
０℃以下であることを特徴とする請求項２に記載の成形
用ポリエステルフィルム。3. The thermoplastic polyester A has a ΔTcg of 5
It is 0 degreeC or less, The polyester film for molding of Claim 2 characterized by the above-mentioned.
したことを特徴とする請求項２に記載の成形用ポリエス
テルフィルム。4. The molding polyester film according to claim 2, wherein the thermoplastic polyester B is mixed with a colorant.
ｎＯ、リトホンＺｎＳＢａＳＯ4 から選ばれることを特
徴とする請求項２または請求項４に記載の成形用ポリエ
ステルフィルム。5. The coloring agent is titanium oxide TiO 2 , zinc white Z
5. The molding polyester film according to claim 2, wherein the molding polyester film is selected from nO and lithophone ZnSBaSO 4 .
５０重量％、熱可塑性ポリエステルＢに１０重量％以下
含有され、着色剤の添加量の関係が次式を満足すること
を特徴とする請求項４または請求項５に記載の成形用ポ
リエステルフィルム。熱可塑性ポリエステルＡに対する
添加量＞熱可塑性ポリエステルＢに対する添加量6. The thermoplastic polyester A has a colorant of 5 to 5.
The molding polyester film according to claim 4 or 5, wherein 50% by weight or less and 10% by weight or less of the thermoplastic polyester B are contained, and the relationship of the addition amount of the colorant satisfies the following formula. Addition amount to thermoplastic polyester A> Addition amount to thermoplastic polyester B
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2110793A JP3331658B2 (en) | 1993-02-09 | 1993-02-09 | Polyester film for molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2110793A JP3331658B2 (en) | 1993-02-09 | 1993-02-09 | Polyester film for molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06234868A true JPH06234868A (en) | 1994-08-23 |
| JP3331658B2 JP3331658B2 (en) | 2002-10-07 |
Family
ID=12045660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2110793A Expired - Fee Related JP3331658B2 (en) | 1993-02-09 | 1993-02-09 | Polyester film for molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3331658B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006160981A (en) * | 2004-12-10 | 2006-06-22 | Toray Ind Inc | Polyester film |
| WO2007020861A1 (en) * | 2005-08-18 | 2007-02-22 | Toray Industries, Inc. | Laminate film and molded article |
| US7807240B2 (en) | 1996-08-14 | 2010-10-05 | Dupont Teijin Films U.S. Limited Partnership | Opaque polyester film as substrate with white coatings on both sides |
| JP4751511B2 (en) * | 1998-01-20 | 2011-08-17 | デュポン テイジン フィルムズ ユー．エス．リミテッド パートナーシップ | Polyester film with low pigment content and method for producing the same |
-
1993
- 1993-02-09 JP JP2110793A patent/JP3331658B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7807240B2 (en) | 1996-08-14 | 2010-10-05 | Dupont Teijin Films U.S. Limited Partnership | Opaque polyester film as substrate with white coatings on both sides |
| JP4751511B2 (en) * | 1998-01-20 | 2011-08-17 | デュポン テイジン フィルムズ ユー．エス．リミテッド パートナーシップ | Polyester film with low pigment content and method for producing the same |
| JP2006160981A (en) * | 2004-12-10 | 2006-06-22 | Toray Ind Inc | Polyester film |
| WO2007020861A1 (en) * | 2005-08-18 | 2007-02-22 | Toray Industries, Inc. | Laminate film and molded article |
| US8110282B2 (en) | 2005-08-18 | 2012-02-07 | Toray Industries, Inc. | Laminated film and molded body |
| US8404335B2 (en) | 2005-08-18 | 2013-03-26 | Toray Industries, Inc. | Laminated film and molded body |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3331658B2 (en) | 2002-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100721323B1 (en) | Biaxially Stretched Polyester Film for Molding Processing | |
| JP4655365B2 (en) | Biaxially stretched polyester film for molding | |
| US6420019B1 (en) | Multilayer, transparent, biaxially oriented polyester film | |
| JP4839012B2 (en) | Polyester film for in-mold molding | |
| JP5127296B2 (en) | Polyester film for deep drawing molding simultaneous transfer foil | |
| JPH1110725A (en) | Polyester film for transparent deposition | |
| JPH07145252A (en) | Covering transparent film for sticking to cover of metal can | |
| JP2004130811A (en) | Biaxially stretched polyester film, its manufacturing process and its use | |
| JP4583699B2 (en) | Polyester film, polyester film for molding, and molded member using the same | |
| US5780158A (en) | Biaxially oriented film to be laminated on a metal | |
| JPH05331302A (en) | Transparent film for laminating to metal can lid | |
| JPH1017683A (en) | Polyester film for large-sized molded transfer foil | |
| JP2000006346A (en) | Multilayered polyester sheet | |
| JPH06234868A (en) | Polyester film for forming | |
| JPH09300892A (en) | Polyester film for transfer foil | |
| JP2004122767A (en) | Biaxially oriented polyester film for vessel molding, vessel and vessel molding process | |
| JPH05320378A (en) | Polyester film for metallic plate cladding processing | |
| JP2692310B2 (en) | Biaxially oriented polyester film for molding | |
| JPH0470333A (en) | Polyester sheet for molding and polyester molded body | |
| JPH02305827A (en) | Fabricable polyester film | |
| JPH07166037A (en) | Polyester film | |
| JPH06210799A (en) | Transfer foil | |
| JP4660906B2 (en) | Biaxially stretched polyester film for molding | |
| JP3811636B2 (en) | Polyester laminated sheet and molded product comprising the same | |
| JP2006051670A (en) | Colored polyester film for metal lamination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 7 Free format text: PAYMENT UNTIL: 20090726 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090726 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100726 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100726 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20110726 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110726 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |