JP6691345B2 - Display film and floor display film for vehicle in which the display film is laminated - Google Patents
Display film and floor display film for vehicle in which the display film is laminated Download PDFInfo
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Description
本発明は、建築物、鉄道車両やバス等の壁面や床面に使用される表示用フィルム及び車両用床表示フィルムに関する。 The present invention relates to a display film used for a wall surface or floor surface of a building, a railway vehicle, a bus, etc., and a floor display film for a vehicle.
従来から、建築物、鉄道車両やバス等の壁面や床面やその出入口部には、表面を凹凸形状にした塩化ビニル樹脂（ＰＶＣ）や加硫ゴムからなる滑り止めマットが多く採用されていた。これらは、一定の性能を発揮するうえに、加工が容易で経済的にも優れた滑り止めマットとされている。 BACKGROUND ART Conventionally, a non-slip mat made of vinyl chloride resin (PVC) or vulcanized rubber having an uneven surface has been often used for wall surfaces and floor surfaces of buildings, railway vehicles, buses, etc. and their entrances and exits. . These are non-slip mats that exhibit certain performance, are easy to process, and are economically superior.
しかしながら、ＰＶＣ製の滑り止めマットは火災時において、多量の発煙と共に塩化水素等の有毒ガスを発生することから、火災にみまわれた避難者がこれら有毒ガス等を吸入し、人命が危機にさらされてしまう等の問題や、また廃棄時に焼却する場合には、その強い酸化作用によって、焼却施設を著しく損傷してしまうだけでなく、適切でない焼却処理によっては、有害なダイオキシンを発生させ環境汚染をもたらすという問題があった。 However, PVC anti-slip mats generate a large amount of smoke and toxic gases such as hydrogen chloride during a fire, so evacuees exposed to the fire may inhale these toxic gases and endanger their lives. In the case of incineration at the time of disposal, or in the case of incineration at the time of disposal, its strong oxidizing action not only seriously damages the incineration facility, but inadequate incineration causes the generation of harmful dioxin and environmental pollution. There was a problem of bringing.
そこで、近年ではＰＶＣ材料に代えて、燃焼時に有毒ガスの発生が少ない、エチレンー酢酸ビニル共重合体、ポリプロピレン樹脂、ポリエチレン樹脂、エチレン−ビニルアルコール共重合樹脂、ポリエステル樹脂等のポリオレフィン系樹脂製の床材が多く使われるようになってきている。 Therefore, in recent years, a floor made of a polyolefin resin such as an ethylene-vinyl acetate copolymer, a polypropylene resin, a polyethylene resin, an ethylene-vinyl alcohol copolymer resin, a polyester resin or the like, which is less likely to generate a toxic gas during combustion, has been used instead of a PVC material. Wood is becoming more popular.
特許文献１においては、保護層を改質する表面改質剤と硬化樹脂と、例えばガラスビーズ、アルミナビーズ等の硬質ビーズとを含有する層を少なくとも最表層として保護層に含み、保護層とベース層と接着層を有する接着シート全体の厚さが１００〜２５０μｍの接着シートを開示している。 In Patent Document 1, a layer containing a surface modifier that modifies the protective layer, a cured resin, and hard beads such as glass beads and alumina beads is included in the protective layer as at least the outermost layer, and the protective layer and the base are included. Disclosed is an adhesive sheet having an overall adhesive sheet having a layer and an adhesive layer with a total thickness of 100 to 250 μm.
本発明は、かかる技術的背景に鑑みてなされたものであって、建築物、鉄道車両やバス等の床面は、日々多くの歩行者や乗員によって踏まれる過酷な条件下の床面やその出入口部における使用であっても、滑り抵抗係数の異なる等の性質の異なる樹脂を混ぜる必要もなく、例えばガラスビーズ、アルミナビーズ等の硬質ビーズを含む層を最表層とする保護層を積層することもなく、耐摩耗性に優れた表示用フィルムを提供すること、さらには、耐摩耗性はもちろんのこと端部剥離強度が高い車両用床表示フィルムを提供することを目的とする。 The present invention has been made in view of such a technical background, and the floor surface of a building, railway vehicle, bus, etc. is a floor surface under harsh conditions that is stepped on by many pedestrians and occupants every day and its Even when used at the entrance / exit, it is not necessary to mix resins with different properties such as different slip resistance coefficients, and for example, to laminate a protective layer having a layer containing hard beads such as glass beads and alumina beads as the outermost layer. It is also an object of the present invention to provide a display film having excellent abrasion resistance, and further to provide a vehicle floor display film having high abrasion resistance and high edge peel strength.
前記目的を達成するために、本発明は以下の手段を提供する。 In order to achieve the above object, the present invention provides the following means.
［１］熱可塑性樹脂からなるフィルムであって、該熱可塑性樹脂が、オレフィン系樹脂、ウレタン系樹脂、ウレタン変性樹脂の少なくともいずれか１種であり、該フィルムが次の（１）〜（３）の特性を同時に満足することを特徴とする表示用フィルム。
（１）温度が−２０℃における貯蔵弾性率が、１３００ＭＰａ〜１７００ＭＰａであり、２０℃における貯蔵弾性率が、３００ＭＰａ〜６００ＭＰａであり、８０℃における貯蔵弾性率が、２０ＭＰａ〜１００ＭＰａである。
（２）ＪＩＳ A １４５４（２０１０年）に準拠し、摩耗輪：S−４２、荷重５００ｇｆ、５０００回転後の摩耗減量が、２４００ｍｍ３以下である。
（３）厚みが５０μｍ〜５００μｍである。
[1] A film made of a thermoplastic resin , wherein the thermoplastic resin is at least one selected from an olefin resin, a urethane resin, and a urethane-modified resin, and the film has the following (1) to (3). ) A film for display characterized by simultaneously satisfying the above characteristics.
(1) The storage elastic modulus at a temperature of −20 ° C. is 1300 MPa to 1700 MPa, the storage elastic modulus at 20 ° C. is 300 MPa to 600 MPa, and the storage elastic modulus at 80 ° C. is 20 MPa to 100 MPa.
(2) In accordance with JIS A 1454 (2010), wear wheel: S-42, wear loss after load 500 gf, 5000 rotations is 2400 mm 3 or less.
(3) The thickness is 50 μm to 500 μm.
［２］前項１に記載の表示用フィルムの下面に順に、印刷層、粘着層を備えた車両用床表示フィルム。 [ 2 ] A floor display film for vehicles, which is provided with a printing layer and an adhesive layer in this order on the lower surface of the display film according to item 1 .
［３］前記車両用床表示フィルムの総厚みが２００μｍ〜７００μｍである前項２に記載の車両用床表示フィルム。 [ 3 ] The vehicle floor display film according to item 2 , wherein the vehicle floor display film has a total thickness of 200 μm to 700 μm.
［４］前記表示用フィルム周辺縁部の立面が斜めであり、該斜めの角度が３０°〜５０°である前項２または３に記載の車両用床表示フィルム。 [ 4 ] The vehicle floor display film as described in the above item 2 or 3 , wherein an elevation of a peripheral edge of the display film is oblique, and the oblique angle is 30 ° to 50 °.
［１］の発明では、熱可塑性樹脂からなるフィルムにおいて、貯蔵弾性率を特定の範囲に限定するするとともに、ＪＩＳ A １４５４（２０１０年）に準拠した試験で、摩耗輪：S−４２を用い、荷重５００ｇｆの条件のもと５０００回転後の摩耗減量を２４００ｍｍ３以下に限定し、かつ表示用フィルムの総厚みを特定の範囲に限定しているから、耐摩耗性に優れ、端部剥離強度が高い表示用フィルムとすることができる。 In the invention of [1], in a film made of a thermoplastic resin, the storage elastic modulus is limited to a specific range, and a wear ring: S-42 is used in a test according to JIS A 1454 (2010), Since the wear loss after 5000 rotations under the condition of a load of 500 gf is limited to 2400 mm 3 or less and the total thickness of the display film is limited to a specific range, it is excellent in wear resistance and has an edge peel strength. It can be a high display film.
［１］の発明では、熱可塑性樹脂が、オレフィン系樹脂、ウレタン系樹脂、ウレタン変性樹脂の少なくともいずれか１種であるので、例えば火災により樹脂が燃焼した場合であっても、多量の発煙や、塩化水素等の有毒ガスを発生することもない。 In the invention [ 1 ], since the thermoplastic resin is at least one of olefin resin, urethane resin, and urethane-modified resin, even if the resin burns due to fire, for example, a large amount of smoke or Also, it does not generate toxic gas such as hydrogen chloride.
［２］の発明では、表示用フィルムの下面に順に、印刷層、粘着層を備えているので、意匠性の付与や誘導情報や利用区分情報や広告・宣伝等の情報を効果的に表示することができる優れた車両用床表示フィルムとすることができる。 In the invention [ 2 ], since the lower surface of the display film is provided with the printing layer and the adhesive layer in order, it effectively displays information such as design information, guidance information, usage classification information, advertisement, and advertisement. It is possible to obtain an excellent floor display film for vehicles.
［３］の発明では、車両用床表示フィルムの総厚みが２００μｍ〜７００μｍの範囲に限定しているから、端部剥離強度が十分高い車両用床表示フィルムとすることができる。 In the invention [ 3 ], since the total thickness of the vehicle floor display film is limited to the range of 200 μm to 700 μm, the vehicle floor display film having sufficiently high edge peel strength can be obtained.
［４］の発明では、表示用フィルム周辺縁部の立面が斜めであり、該斜めの角度が３０°〜５０°であるので、表示用フィルム周辺縁部に、靴やハイヒールのつま先、底面や踵等からの力が加わったとしても、力が分散されるので、表示用フィルムは床面の下地から剥がれ難い車両用床表示フィルムとすることができる。 In the invention of [ 4 ], since the elevation of the peripheral edge of the display film is oblique and the angle of inclination is 30 ° to 50 °, the toe and the bottom of the shoe or high heel are attached to the peripheral edge of the display film. Even if a force is applied from the heel or the heel, the force is dispersed, so that the display film can be a floor display film for a vehicle that is hard to be peeled off from the base of the floor surface.
第１の発明の表示用フィルムは、熱可塑性樹脂からなるフィルムであって、該熱可塑性樹脂が、オレフィン系樹脂、ウレタン系樹脂、ウレタン変性樹脂の少なくともいずれか１種であり、次の（１）〜（３）の特性を同時に満足することを特徴とする。
（１）温度が−２０℃における貯蔵弾性率が、１３００ＭＰａ〜１７００ＭＰａであり、２０℃における貯蔵弾性率が、３００ＭＰａ〜６００ＭＰａであり、８０℃における貯蔵弾性率が、２０ＭＰａ〜１００ＭＰａである。
（２）ＪＩＳ A １４５４（２０１０年）に準拠し、摩耗輪：S−４２、荷重５００ｇｆ、５０００回転後の摩耗減量が、２４００ｍｍ３以下である。
（３）厚みが５０μｍ〜５００μｍである。
The display film of the first invention is a film made of a thermoplastic resin, wherein the thermoplastic resin is at least one of an olefin resin, a urethane resin, and a urethane-modified resin, and the following (1 ) To (3) are simultaneously satisfied.
(1) The storage elastic modulus at a temperature of −20 ° C. is 1300 MPa to 1700 MPa, the storage elastic modulus at 20 ° C. is 300 MPa to 600 MPa, and the storage elastic modulus at 80 ° C. is 20 MPa to 100 MPa.
(2) In accordance with JIS A 1454 (2010), wear wheel: S-42, wear loss after load 500 gf, 5000 rotations is 2400 mm 3 or less.
(3) The thickness is 50 μm to 500 μm.
前記熱可塑性樹脂が、オレフィン系樹脂、ウレタン系樹脂、ウレタン変性樹脂の少なくともいずれか１種であるので、例えば火災により樹脂が燃焼した場合であっても、多量の発煙や、塩化水素等の有毒ガスを発生することもない。なかでも、ウレタンはエステル系ウレタン、エーテル系ウレタンが好ましい。
Said thermoplastic resins are olefinic resins, since a urethane resin, at least one kind of urethane-modified resin, for example, even when the resin by the fire was burning, a large amount of smoke and, such as hydrogen chloride it is also not the name that generates a toxic gas. Of these, urethane is preferably ester urethane or ether urethane.
また、前記熱可塑性樹脂をフィルム化するには、特に限定されないが例えば、Ｔダイ押し出し機を用いて製造することができる。熱可塑性樹脂ペレットを溶融しダイスのリップ部から吐出したのち、圧着ロールや冷却ロール等を使用し冷却固化してフィルムを成形することができる。この場合、着色剤、防黴剤、滑剤、酸化防止剤、熱安定剤、難燃剤、紫外線吸収剤、帯電防止剤など各種添加剤を加えてもよい。 The thermoplastic resin can be formed into a film by, for example, but not limited to, a T-die extruder. After the thermoplastic resin pellets are melted and discharged from the lip portion of the die, they can be cooled and solidified by using a pressure roll or a cooling roll to form a film. In this case, various additives such as a colorant, a fungicide, a lubricant, an antioxidant, a heat stabilizer, a flame retardant, an ultraviolet absorber and an antistatic agent may be added.
前記貯蔵弾性率としては、温度が−２０℃における貯蔵弾性率が、１３００ＭＰａ〜１７００ＭＰａであり、２０℃における貯蔵弾性率が、３００ＭＰａ〜６００ＭＰａであり、かつ８０℃における貯蔵弾性率が、２０ＭＰａ〜１００ＭＰａである。 As the storage elastic modulus, the storage elastic modulus at a temperature of −20 ° C. is 1300 MPa to 1700 MPa, the storage elastic modulus at 20 ° C. is 300 MPa to 600 MPa, and the storage elastic modulus at 80 ° C. is 20 MPa to 100 MPa. Is.
さらに、前記貯蔵弾性率との該温度範囲における前記貯蔵弾性率の温度依存性が略線形であることが好ましい。前記貯蔵弾性率が略線形となれば、表示用フィルムが施工された環境下で、温度の変化に伴う急激なフィルムの強度低下を防ぐことができる。より好ましくは、温度範囲が−２０℃における貯蔵弾性率が、１４００ＭＰａ〜１６００ＭＰａであり、２０℃における貯蔵弾性率が、３５０ＭＰａ〜４５０ＭＰａであり、かつ８０℃における貯蔵弾性率が、３０ＭＰａ〜５０ＭＰａである。貯蔵弾性率の範囲を規定することで、所望の熱寸法安定性と硬さを備えたフィルムとすることができる。 Further, the temperature dependence of the storage elastic modulus in the temperature range with the storage elastic modulus is preferably substantially linear. When the storage elastic modulus is substantially linear, it is possible to prevent a sudden decrease in the strength of the film due to a change in temperature under the environment where the display film is applied. More preferably, the storage elastic modulus at a temperature range of −20 ° C. is 1400 MPa to 1600 MPa, the storage elastic modulus at 20 ° C. is 350 MPa to 450 MPa, and the storage elastic modulus at 80 ° C. is 30 MPa to 50 MPa. . By defining the storage elastic modulus range, a film having desired thermal dimensional stability and hardness can be obtained.
前記摩耗減量は、ＪＩＳ Ａ １４５４（２０１０年）に準拠し、摩耗輪：S−４２、荷重５００ｇｆ、５０００回転後の摩耗減量を計量し、２４００ｍｍ３以下である。前記熱可塑性樹脂の密度を用いて、質量の測定値から摩耗量（ｍｍ３）を算出する。摩耗量を２４００ｍｍ３以下とすることで、例えば車両用床表示フィルムとして用いた場合に、多くの歩行者よって踏まれる過酷な状況で負荷がかかったとしても、柄消え等の発生が抑えられる。 The wear reduction is 2400 mm 3 or less in accordance with JIS A 1454 (2010), based on a wear ring: S-42, a load reduction of 500 gf, and a wear reduction after 5000 rotations. The wear amount (mm 3 ) is calculated from the measured value of the mass using the density of the thermoplastic resin. By setting the amount of wear to 2400 mm 3 or less, for example, when used as a floor display film for vehicles, even if a load is applied in a severe situation where many pedestrians step on, the occurrence of pattern disappearance and the like can be suppressed.
前記厚みは、５０μｍ〜５００μｍの範囲である。厚さが５０μｍ未満では耐摩耗性が低下し、耐久性に問題が生じる恐れがあり、５００μｍを超えると乗客がけつまずくおそれが高まるので、好ましくない。 The thickness is in the range of 50 μm to 500 μm. If the thickness is less than 50 μm, abrasion resistance may be deteriorated and durability may be deteriorated, and if it exceeds 500 μm, passengers may trip over, which is not preferable.
本発明の表示用フィルムは、貯蔵弾性率、摩耗量、フィルムの厚みを特定の範囲に限定しているから、耐摩耗性に優れ、端部剥離強度が高く、防滑性に優れた表示用フィルムとすることができる。なお、JIS K ６２５３（２０１２年）に準拠して測定したショア硬度が、Ｄ６０〜Ｄ７５であることが好ましい。さらに好ましくは、Ｄ６５〜Ｄ７０である。 The display film of the present invention has a storage elastic modulus, an amount of wear, and a thickness of the film are limited to a specific range, and thus has excellent wear resistance, high edge peel strength, and an excellent anti-slip film. Can be The Shore hardness measured according to JIS K 6253 (2012) is preferably D60 to D75. More preferably, it is D65 to D70.
第２の発明に係る車両用床表示フィルム１の一実施形態を図１に示す。車両用床表示フィルムは、第１の発明の表示用フィルム２の下面に順に、印刷層３、粘着層４を備えることを特徴とする。 FIG. 1 shows an embodiment of a vehicle floor display film 1 according to the second invention. The vehicle floor display film is characterized in that a print layer 3 and an adhesive layer 4 are sequentially provided on the lower surface of the display film 2 of the first invention.
前記印刷層３としては、特に限定されないが、例えばグラビア印刷、オフセット印刷、シルクスクリーン印刷、転写印刷、制電印刷、インクジェット印刷等の印刷手法によって形成される。この印刷に用いられる印刷インキとしては、特に限定されないが、例えばアクリル系樹脂、ウレタン系樹脂、ポリエステル系樹脂などの合成樹脂に、顔料、染料、着色料、充填剤等が添加混合されるものを挙げることができ、通常は溶剤などで希釈されている。 The printing layer 3 is not particularly limited, but is formed by a printing method such as gravure printing, offset printing, silk screen printing, transfer printing, antistatic printing, inkjet printing, or the like. The printing ink used for this printing is not particularly limited, but for example, a synthetic resin such as an acrylic resin, a urethane resin, or a polyester resin to which a pigment, a dye, a colorant, a filler, and the like are added and mixed. It may be mentioned, and is usually diluted with a solvent or the like.
前記粘着層４としては、特に限定されないが、例えばアクリル系粘着剤、天然ゴムラテックス系粘着剤、シリコン系粘着剤、ウレタン系粘着剤などを用いて形成される。なかでもアクリル系粘着剤が、粘着力が強く、また凝集力も強いので好ましい。粘着剤の塗布量は３５〜１３５ｇ／ｍ２（乾燥時）が好ましく、印刷層３の下面にコーティングすることで容易に粘着層３を形成することができる。 The adhesive layer 4 is not particularly limited, but is formed using, for example, an acrylic adhesive, a natural rubber latex adhesive, a silicone adhesive, a urethane adhesive, or the like. Of these, acrylic pressure-sensitive adhesives are preferable because they have strong adhesive force and strong cohesive force. The coating amount of the pressure-sensitive adhesive is preferably 35 to 135 g / m 2 (when dried), and the pressure-sensitive adhesive layer 3 can be easily formed by coating the lower surface of the printing layer 3.
さらに、基材層５、粘着層４を積層してなるのが好ましい。前記基材層５は特に限定はされないが金属層が好ましく、例えばアルミニウム、アルミニウム合金、ステンレス、銅などを挙げることができる。金属層を積層することにより、車両用床表示フィルム１を床面の凹凸に沿って容易に変形させることができ、簡単な作業で床面と密着させた状態で施工することができるので、施工後の車両用床表示フィルム１の剥離強度を強くすることができる。 Further, it is preferable that the base material layer 5 and the adhesive layer 4 are laminated. The base material layer 5 is not particularly limited, but is preferably a metal layer, and examples thereof include aluminum, aluminum alloys, stainless steel, and copper. By laminating the metal layer, the vehicle floor display film 1 can be easily deformed along the unevenness of the floor surface, and the construction can be performed in a state in which it is in close contact with the floor surface by a simple operation. The peel strength of the floor display film 1 for a vehicle thereafter can be increased.
前記金属層としては、アルミニウムまたはアルミニウム合金等のアルミ箔、アルミシートが施工床面の細かな凹凸への追従性に優れるので好ましい。さらにアルミ箔、アルミシートを用いることで収縮も腐食もなく、寸法安定性にも優れ、さらに不陸のある床面であっても施工が容易で、めくれ等の発生し難い耐久性のある車両用床表示フィルム１とすることができる。 As the metal layer, an aluminum foil such as aluminum or an aluminum alloy, or an aluminum sheet is preferable because it has excellent followability to fine irregularities on the construction floor. Furthermore, by using aluminum foil or aluminum sheet, there is no shrinkage or corrosion, it has excellent dimensional stability, and it is easy to install even on uneven floors, and it is a durable vehicle that does not easily turn over. The floor display film 1 can be used.
前記金属層の厚さは２０μｍ〜１００μｍが好ましい。２０μｍよりも薄い場合は、強度が十分でなくなり、１００μｍよりも厚い場合には、床面に対するなじみが悪くなり、十分な剥離強度が得られないおそれがある。 The thickness of the metal layer is preferably 20 μm to 100 μm. When the thickness is less than 20 μm, the strength becomes insufficient, and when the thickness is more than 100 μm, the conformability to the floor surface becomes poor and sufficient peel strength may not be obtained.
このように基材層５、粘着層４を積層してなる車両用床表示フィルム１の総厚みは、２００μｍ〜７００μｍととするのが好ましい。７００μｍより厚くなると、歩行者や乗客が歩行中に車両用床表示フィルム１の周辺縁部に繰返し当たることにより車両用床表示フィルム１の周辺縁部がめくれはじめるおそれがあるので好ましくない。２００μｍよりも薄くなると、車両用床表示フィルム１の強度不足や摩耗耐久性に懸念が生じるので好ましくない。 Thus, the total thickness of the floor display film for vehicle 1 formed by laminating the base material layer 5 and the adhesive layer 4 is preferably 200 μm to 700 μm. A thickness of more than 700 μm is not preferable because a pedestrian or a passenger may repeatedly hit the peripheral edge of the vehicle floor display film 1 while walking and the peripheral edge of the vehicle floor display film 1 may start to turn over. When the thickness is less than 200 μm, there is a concern about insufficient strength and wear durability of the floor display film 1 for a vehicle, which is not preferable.
第２の発明に係る車両用床表示フィルム１の一実施形態で、床面に施工後の断面図を図２に示す。車両用床表示フィルム１の周辺縁部の立面６は斜面を形成しており、床面下地７との間の車両用床表示フィルム１の角度は３０°〜５０°が好ましい。３０°を下回る角度では、周辺縁部に擦り切れや亀裂が発現しやすく好ましくない。また、５０°を上回る角度では、周辺縁部の立面６に横方向に力がかかった場合剥がれやすく好ましくない。 FIG. 2 shows a cross-sectional view of the floor display film 1 for a vehicle according to the second invention after being applied to the floor surface in an embodiment. The vertical surface 6 at the peripheral edge of the vehicle floor display film 1 forms a slope, and the angle of the vehicle floor display film 1 with the floor surface base 7 is preferably 30 ° to 50 °. If the angle is less than 30 °, fraying or cracking is likely to occur at the peripheral edge, which is not preferable. On the other hand, if the angle exceeds 50 °, it is not preferable because the vertical surface 6 of the peripheral edge portion is easily peeled off when a lateral force is applied.
図３は車両用床表示フィルム１の一実施形態で、床面に施工後の概略斜視図である。例えば、ベビーカーや車椅子優先の旨（図示せず）を印刷表示した車両用床表示フィルム１を車両の前部付近や後部付近に施工することで、乗客に対して効果的に伝えることができる。また、誘導情報や広告・宣伝等の情報（図示せず）を印刷表示した車両用床表示フィルム１を車両の中央部付近に施工することで、乗客に対して効果的に伝えることができる。 FIG. 3 is an embodiment of the vehicle floor display film 1 and is a schematic perspective view of the floor display film 1 after being applied to the floor surface. For example, by providing the floor display film 1 for a vehicle on which a stroller or wheelchair priority (not shown) is printed and displayed near the front portion or the rear portion of the vehicle, the passengers can be effectively notified. Further, by installing the vehicle floor display film 1 on which guide information and information (not shown) such as advertisements / advertisements are printed and displayed in the vicinity of the central portion of the vehicle, the information can be effectively transmitted to passengers.
また、図４は車両用床表示フィルム１の一実施形態で、床面に施工後の概略斜視図である。例えば、文字や色による足元の注意喚起等の情報（図示せず）を印刷表示した車両用床表示フィルム１を車両の扉の内側付近に施工することで、乗客に対して効果的に伝えることができる。 Moreover, FIG. 4 is an embodiment of the floor display film 1 for a vehicle, and is a schematic perspective view of the floor display film 1 after construction on a floor surface. For example, by effectively installing the floor display film 1 for a vehicle on which information (not shown) such as alerts for feet by letters or colors is printed near the inside of the door of the vehicle, it can be effectively communicated to passengers. You can
このように、両用床表示フィルム１は意匠性の付与や誘導情報や利用区分情報や広告・宣伝等の情報を表示することができるので、乗客等に効果的に伝えることができる。 In this way, the dual-use floor display film 1 can display information such as design information, guidance information, usage classification information, and advertisement / promotion, so that it can be effectively transmitted to passengers and the like.
次に、本発明の具体的な実施例について説明するが、本発明はこれらの実施例のものに特に限定されるものではない。 Next, specific examples of the present invention will be described, but the present invention is not particularly limited to these examples.
＜実施例１＞
熱可塑性ポリオレフィン樹脂１００質量部、光安定剤０．３重量％、及び紫外線吸収剤０．３重量％、をバンバリーミキサーを用いて、加熱し溶融混練したのちＴダイ押し出し機によりフィルム状に押し出して３５０μｍ厚の表示用フィルムを得た。次に、この表示用フィルムの裏面にスクリーン印刷を施し印刷層を形成した。さらに、別の工程で粘着層を塗布した離型紙を用意し、表示用フィルムに積層して車両用床表示フィルムを得た。なお、粘着層としてはアクリル系２液硬化型のものを使用した。こうして得られた離型紙付きの車両用床表示フィルムを矩形に裁断し、周辺縁部の立面を斜めに４０°の角度に電動カンナで削り落として車両用床表示フィルムを作製した。なお、車両用床表示フィルムの総厚みは印刷層と粘着層の厚みを含め４５０μｍであった。また、端部剥離強度の評価は「○」、燃焼試験の結果も「○」でいずれも合格であった。表１に熱可塑性樹脂の種類や表示用フィルムの厚み、印刷層、粘着層、総厚みなどを示し、表２に評価結果を示す。
<Example 1>
100 parts by weight of a thermoplastic polyolefin resin, 0.3% by weight of a light stabilizer, and 0.3% by weight of an ultraviolet absorber are heated and melt-kneaded by using a Banbury mixer, and then extruded into a film by a T-die extruder. A display film having a thickness of 350 μm was obtained. Next, screen printing was performed on the back surface of this display film to form a printing layer. Further, a release paper coated with an adhesive layer was prepared in another step and laminated on a display film to obtain a floor display film for vehicles. As the adhesive layer, an acrylic two-component curing type was used. The vehicle floor display film with release paper thus obtained was cut into a rectangle, and the vertical surface of the peripheral edge portion was obliquely scraped off by an electric plane at an angle of 40 ° to produce a vehicle floor display film. The total thickness of the vehicle floor display film was 450 μm including the thicknesses of the printing layer and the adhesive layer. In addition, the evaluation of the peel strength at the end was “◯”, and the result of the combustion test was also “◯”, which were both acceptable. Table 1 shows the types of thermoplastic resin, the thickness of the display film, the printing layer, the adhesive layer, the total thickness, etc., and Table 2 shows the evaluation results.
＜実施例２＞
実施例１において、Tダイ押し出し機のダイスのリップ部のクリアランスを調整して１００μｍ厚の表示用フィルムとした以外は実施例１と同様にして車両用床表示フィルムを得た。なお、車両用床表示フィルムの総厚みは印刷層と粘着層の厚みを含め２００μｍであった。また、端部剥離強度の評価は「○」、燃焼試験の結果も「○」でいずれも合格であった。
<Example 2>
A floor display film for vehicles was obtained in the same manner as in Example 1 except that the clearance of the lip portion of the die of the T-die extruder was adjusted to obtain a display film having a thickness of 100 μm. The total thickness of the vehicle floor display film was 200 μm including the thicknesses of the printing layer and the adhesive layer. In addition, the evaluation of the peel strength at the end was “◯”, and the result of the combustion test was also “◯”, which were both acceptable.
＜実施例３＞
別の工程でアクリル系２液硬化型の粘着層を塗布した離型紙を厚さ１００μｍのアルミ箔に積層した。このアルミ箔を、実施例１と同様にして得られた３５０μｍ厚の車両用表示用フィルムのアクリル系２液硬化型の粘着層側に積層し、周辺縁部の立面を斜めに４０°にしたアルミ箔付き車両用床表示フィルムを得た。なお、アルミ箔のないものよりも粘着剤は少なくし、車両用床表示フィルムの総厚みは、アルミ箔、印刷層と粘着層の厚みを含め４５０μｍであった。また、端部剥離強度の評価は「○」、燃焼試験の結果も「○」でいずれも合格であった。
<Example 3>
In another step, a release paper coated with an acrylic two-component curing type adhesive layer was laminated on an aluminum foil having a thickness of 100 μm. This aluminum foil was laminated on the acrylic-based two-component curing type adhesive layer side of a 350 μm-thick vehicle display film obtained in the same manner as in Example 1, and the elevation of the peripheral edge was inclined at 40 °. The floor display film for vehicles with the aluminum foil was obtained. The adhesive was less than that without the aluminum foil, and the total thickness of the vehicle floor display film was 450 μm including the thickness of the aluminum foil, the printing layer and the adhesive layer. In addition, the evaluation of the peel strength at the end was “◯”, and the result of the combustion test was also “◯”, which were both acceptable.
＜実施例４＞
実施例３において、熱可塑性ポリオレフィン樹脂に替えて熱可塑性ポリウレタン樹脂１００質量を用いた以外は実施例３と同様にしてアルミ箔付き車両用床表示フィルムを得た。車両用床表示フィルムの総厚みは、アルミ箔、印刷層と粘着層の厚みを含め４５０μｍであった。また、端部剥離強度の評価は「○」、燃焼試験の結果も「○」でいずれも合格であった。
<Example 4>
A floor display film for vehicles with an aluminum foil was obtained in the same manner as in Example 3 except that 100 mass of the thermoplastic polyurethane resin was used instead of the thermoplastic polyolefin resin. The total thickness of the vehicle floor display film was 450 μm including the thickness of the aluminum foil, the printing layer and the adhesive layer. In addition, the evaluation of the peel strength at the end was “◯”, and the result of the combustion test was also “◯”, which were both acceptable.
＜実施例５＞
実施例３において、熱可塑性ポリオレフィン樹脂に替えて熱可塑性ポリウレタン樹脂１００質量を用い、Tダイ押し出し機のダイスのリップ部のクリアランスを調整して１５０μｍ厚の表示用フィルムを用いた以外は実施例３と同様にしてアルミ箔付き車両用床表示フィルムを得た。車両用床表示フィルムの総厚みは、アルミ箔、印刷層と粘着層の厚みを含め２５０μｍであった。また、端部剥離強度の評価は「○」、燃焼試験の結果も「○」でいずれも合格であった。
<Example 5>
Example 3 except that 100 mass% of the thermoplastic polyurethane resin was used in place of the thermoplastic polyolefin resin and the clearance of the lip portion of the die of the T-die extruder was adjusted to use a display film having a thickness of 150 μm. A vehicle floor display film with an aluminum foil was obtained in the same manner as in. The total thickness of the vehicle floor display film was 250 μm including the thickness of the aluminum foil, the printing layer and the adhesive layer. In addition, the evaluation of the peel strength at the end was “◯”, and the result of the combustion test was also “◯”, which were both acceptable.
＜比較例１＞
実施例１において、Tダイ押し出し機のダイスのリップ部のクリアランスを調整して３０μｍ厚の表示用フィルムとした以外は実施例１と同様にして、総厚みが印刷層と粘着層の厚みを含め１３０μｍの床表示フィルムを得た。また、端部剥離強度の評価は「×」、燃焼試験の結果も「×」でいずれも不合格であった。
<Comparative Example 1>
In the same manner as in Example 1 except that the clearance of the lip portion of the die of the T-die extruder was adjusted to obtain a display film having a thickness of 30 μm, the total thickness includes the thicknesses of the printing layer and the adhesive layer. A 130 μm floor display film was obtained. In addition, the evaluation of the end peel strength was "x", and the result of the combustion test was also "x", which were both unsuccessful.
＜比較例２＞
実施例１において、Tダイ押し出し機のダイスのリップ部のクリアランスを調整して１０００μｍ厚の表示用フィルムとした以外は実施例１と同様にして、総厚みが印刷層と粘着層の厚みを含め１１００μｍの床表示フィルムを得た。また、端部剥離強度の評価は「×」で不合格であったが、燃焼試験の結果は「○」で合格であった。
<Comparative example 2>
In Example 1, the total thickness including the thickness of the printing layer and the pressure-sensitive adhesive layer was the same as in Example 1 except that the clearance of the lip portion of the die of the T-die extruder was adjusted to obtain a display film having a thickness of 1000 μm. A floor display film of 1100 μm was obtained. In addition, the evaluation of the edge peel strength was "X" and was unacceptable, but the result of the combustion test was "O" and was acceptable.
＜比較例３＞
実施例４において、Tダイ押し出し機のダイスのリップ部のクリアランスを調整して３０μｍ厚の表示用フィルムとした以外は実施例４と同様にして、アルミ箔付き床表示フィルムを得た。床表示フィルムの総厚みは、アルミ箔、印刷層と粘着層の厚みを含め１３０μｍであった。また、端部剥離強度の評価は「×」、燃焼試験の結果も「×」でいずれも不合格であった。
<Comparative example 3>
A floor display film with an aluminum foil was obtained in the same manner as in Example 4 except that the clearance of the lip portion of the die of the T-die extruder was adjusted to obtain a display film having a thickness of 30 μm. The total thickness of the floor display film was 130 μm including the thickness of the aluminum foil, the printing layer and the adhesive layer. In addition, the evaluation of the end peel strength was "x", and the result of the combustion test was also "x", which were both unsuccessful.
＜比較例４＞
実施例４において、Tダイ押し出し機のダイスのリップ部のクリアランスを調整して１０００μｍ厚の表示用フィルムとした以外は実施例４と同様にして、総厚みが印刷層と粘着層の厚みを含め１１００μｍの床表示フィルムを得た。また、端部剥離強度の評価は「×」で不合格であったが、燃焼試験の結果は「○」で合格であった。
<Comparative example 4>
In Example 4, the total thickness including the thickness of the printing layer and the pressure-sensitive adhesive layer was the same as in Example 4 except that the clearance of the lip portion of the die of the T-die extruder was adjusted to obtain a display film having a thickness of 1000 μm. A floor display film of 1100 μm was obtained. In addition, the evaluation of the edge peel strength was "X" and was unacceptable, but the result of the combustion test was "O" and was acceptable.
＜比較例５＞
実施例３において、熱可塑性ポリオレフィン樹脂に替えて塩化ビニル樹脂１００質量を用い、Tダイ押し出し機のダイスのリップ部のクリアランスを調整して２５０μｍ厚の表示用フィルムとした以外は実施例３と同様にして、アルミ箔付き床表示フィルムを得た。なお、アルミ箔のないものよりも粘着剤は少なくし、床表示フィルムの総厚みは、アルミ箔、印刷層と粘着層の厚みを含め３５０μｍであった。また、端部剥離強度の評価は「×」、燃焼試験の結果も「×」でいずれも不合格であった。
<Comparative Example 5>
Similar to Example 3, except that 100 mass% of vinyl chloride resin was used in place of the thermoplastic polyolefin resin, and the clearance of the lip portion of the die of the T-die extruder was adjusted to form a 250 μm-thick display film. Then, a floor display film with an aluminum foil was obtained. The adhesive was less than that without the aluminum foil, and the total thickness of the floor display film was 350 μm including the thickness of the aluminum foil, the printing layer and the adhesive layer. In addition, the evaluation of the end peel strength was "x", and the result of the combustion test was also "x", which were both unsuccessful.
＜貯蔵弾性率の測定＞
表示用フィルムの試験片を、粘弾性測定装置（株式会社日立ハイテクサイエンス社製ＤＭＡ７１００）を用い、引張による変形を与えて周波数１Ｈｚ、昇温速度５℃／分で温度をマイナス２０℃から８０℃までの範囲にて測定した。
<Measurement of storage elastic modulus>
Using a viscoelasticity measurement device (Hitachi High-Tech Science Co., Ltd. DMA7100), the test piece of the display film was deformed by tension to give a frequency of 1 Hz and a temperature rising rate of 5 ° C./min. It was measured in the range up to.
＜耐摩耗性試験＞
表示用フィルムの試験片を、ＪＩＳ Ａ １４５４（２０１０年）に準拠して測定した。表示用フィルムの試験片の表面に、摩耗輪：S−４２を使用し、テーパ摩耗試験機にて５００ｇｆの荷重をかけ５０００回転させ、摩耗減量（ｇ）を測定した。表示用フィルムの密度を用いて、測定した摩耗減量（ｇ）から摩耗量（ｍｍ３）を算出した。摩耗量が２４００ｍｍ３以下のものを合格とした。
<Abrasion resistance test>
The test piece of the display film was measured according to JIS A 1454 (2010). A wear wheel: S-42 was used on the surface of the test piece of the display film, and a load of 500 gf was applied to the surface of the test piece for 5000 rotations to measure the wear loss (g). The wear amount (mm 3 ) was calculated from the measured wear loss (g) using the density of the display film. A wear amount of 2400 mm 3 or less was accepted.
＜厚み測定＞
各試験片を、デジタルマイクロメーターを用いて測定した。
<Thickness measurement>
Each test piece was measured using a digital micrometer.
＜端部剥離強度の測定＞
車両用床表示フィルムを、ＪＩＳ Ｌ ０８４９（２０１３年）の学振型摩耗試験機を利用し、荷重５００ｇfの金属爪を用いて、前記金属爪が車両用滑り止めマット周辺縁部の立面に当たるようにセットし、金属爪を１００往復（往復速度３０回／分）繰り返したあとの端部剥離状態を目視で判定した。剥離が認められなかったものを「○」とし、剥離が認められたものを「×」とした。
<Measurement of edge peel strength>
The floor display film for a vehicle is subjected to the JIS L 0849 (2013) Gakushin-type abrasion tester, and the metal claw is applied to the vertical surface of the peripheral edge of the anti-slip mat for the vehicle using a metal claw having a load of 500 gf. After the metal nail was repeatedly set 100 times (reciprocating speed of 30 times / minute), the peeled state of the end portion was visually determined. The case where peeling was not recognized was marked with "○", and the case where peeling was recognized was marked with "x".
＜燃焼試験＞
車両用床表示フィルムを、「鉄道車両用材料の燃焼試験及び規格」（一般社団法人日本鉄道車両機械技術協会）に準じた試験方法（４５度傾斜、アルコール燃焼試験）により、燃焼判定基準の区分が「難燃性」であるものを「○」とし、同「緩燃性」または「可燃性」であるものを「×」とした。
<Combustion test>
The floor display film for vehicles is classified into combustion judgment criteria by the test method (45 degree inclination, alcohol combustion test) according to "Combustion test and standard of materials for railway vehicles" (Japan Railway Vehicle Machinery Technical Association). "A" means "flame retardant", and "X" means "flame retardant" or "flammable".
本発明に係る表示用フィルムは、耐摩耗性に優れるので耐摩耗性が要求される表示用フィルムとして単独または他の基材に積層し用いることができる。また、本発明に係る車両用床表示フィルムは、多くの歩行者よって踏まれる過酷な条件の建築物、鉄道車両やバス等の床面やその出入口部において使用することができる。 Since the display film according to the present invention has excellent abrasion resistance, it can be used alone or as a laminate on another substrate as a display film required to have abrasion resistance. Further, the floor display film for a vehicle according to the present invention can be used on a building such as a railway vehicle, a bus, or the like, or the entrance / exit portion thereof, which is harshly pedestrianized by many pedestrians.
１…車両用床表示フィルム
２…表示用フィルム
３…印刷層
４…粘着層
５…基材層
６…周辺縁部の立面
７…床面下地
DESCRIPTION OF SYMBOLS 1 ... Floor display film for vehicles 2 ... Display film 3 ... Printing layer 4 ... Adhesive layer 5 ... Substrate layer 6 ... Peripheral edge elevation 7 ... Floor base
Claims (4)
（１）温度が−２０℃における貯蔵弾性率が、１３００ＭＰａ〜１７００ＭＰａであり、
２０℃における貯蔵弾性率が、３００ＭＰａ〜６００ＭＰａであり、
８０℃における貯蔵弾性率が、２０ＭＰａ〜１００ＭＰａである。
（２）ＪＩＳ A １４５４（２０１０年）に準拠し、摩耗輪：S−４２、荷重５００ｇｆ、５０００回転後の摩耗減量が、２４００ｍｍ３以下である。
（３）厚みが５０μｍ〜５００μｍである。 A film made of a thermoplastic resin , wherein the thermoplastic resin is at least one of an olefin resin, a urethane resin, and a urethane modified resin, and the film has the following characteristics (1) to (3): A film for display characterized by satisfying at the same time.
(1) The storage elastic modulus at a temperature of −20 ° C. is 1300 MPa to 1700 MPa,
The storage elastic modulus at 20 ° C. is 300 MPa to 600 MPa,
The storage elastic modulus at 80 ° C. is 20 MPa to 100 MPa.
(2) In accordance with JIS A 1454 (2010), wear wheel: S-42, wear loss after load 500 gf, 5000 rotations is 2400 mm 3 or less.
(3) The thickness is 50 μm to 500 μm.
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| JP3883588B2 (en) * | 1994-06-22 | 2007-02-21 | 大日本印刷株式会社 | Cosmetic material |
| JP3068138U (en) * | 1999-07-02 | 2000-04-28 | 交通広告株式会社 | Floor sheet |
| US20040006944A1 (en) * | 2000-07-25 | 2004-01-15 | Shuji Miyamoto | Structure and method for floor-surface covering |
| JP2002054296A (en) * | 2000-07-25 | 2002-02-20 | Three M Innovative Properties Co | Floor face coating structure and floor face coating method |
| JP2002145942A (en) * | 2000-11-07 | 2002-05-22 | Idemitsu Petrochem Co Ltd | Polyolefin-based floor covering material |
| JP5590765B2 (en) * | 2007-07-11 | 2014-09-17 | ロンシール工業株式会社 | Olefin flame retardant flooring |
| JP5356748B2 (en) * | 2008-07-31 | 2013-12-04 | アキレス株式会社 | Base film for wafer grinding tape |
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