JP2009269384A - Transfer foil for ink-jet printing - Google Patents

Transfer foil for ink-jet printing Download PDF

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JP2009269384A
JP2009269384A JP2008145100A JP2008145100A JP2009269384A JP 2009269384 A JP2009269384 A JP 2009269384A JP 2008145100 A JP2008145100 A JP 2008145100A JP 2008145100 A JP2008145100 A JP 2008145100A JP 2009269384 A JP2009269384 A JP 2009269384A
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resin
layer
transfer foil
solvent ink
ink
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Kenichi Furukawa
憲一 古川
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Abstract

<P>PROBLEM TO BE SOLVED: To perform printing of print patterns in small lot units on hot-stamped products with transfer foil. <P>SOLUTION: The transfer foil formed by laminating a mold release layer, a solvent ink receiving resin layer, a metal vapor-deposited layer and an adhesive layer in this order on a base material film, is bonded to an adherend, and the surface from which the base material film is peeled is ink-jet printed using a solvent ink. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は転写箔への印刷に関する。  The present invention relates to printing on a transfer foil.

転写箔は金属蒸着層を、紙、フイルム、布帛、皮革、合成皮革などの被着体に、接着により全面もしくは部分的に転写することにより、被着体表面に金属感を付与するのに用いられている。転写箔は基材フイルム上に下から離型層、保護層、金属蒸着層、接着層を順次積層した構成になっている。基材フイルムとしては耐熱性、透明性、柔軟性、機械的強度、寸法安定性に優れたポリエステルフイルム(12〜25μm)が主に用いられる。離型層としては特に制限はなく、例えばシリコーン系樹脂、パラフィンワックス、セルロース系樹脂、アクリル系樹脂、ウレタン系樹脂、メラミン系樹脂、尿素−メラミン系樹脂、ベンゾグアナミン系樹脂などを、単独またはこれらの混合物にして1μm以下の厚みに積層される。保護層としては特に制限はなく、例えばアクリル系樹脂、エポキシ系樹脂、エポキシ−アクリレート系樹脂、ウレタン系樹脂、エチレン樹脂、ウレタン−アクリル系樹脂、メラミン系樹脂、フェノール系樹脂、ウレア系樹脂、尿素系樹脂、尿素−メラミン系樹脂、ジアリルフタレート系樹脂、エステル系樹脂、アルキッド系樹脂、マレイン化ロジン、ビニルブチラール系樹脂、セルロース系樹脂、アミド系樹脂などの、熱硬化性樹脂、紫外線硬化性樹脂、電子線硬化性樹脂を、単独またはこれらの混合物にして1μm程度の厚みに積層される。蒸着金属としてはアルミニウム、クローム、ニッケル、チタン、コバルト、モリブデン、ロジウム、パラジウム、ガリウム、インジウム、金、銀、銅、白金、亜鉛、錫、鉛や、真鍮、ステンレス等の合金などがあり、それらはそれぞれ特有の色調の金属感を被着体に付与する。接着層はホットメルトタイプが一般的で、例えばポリ酢酸ビニル共重合体、ポリビニルアルコール、ポリビニルホルマール、ポリビニルブチラール、アクリル系接着剤、エチレン−酢酸ビニル共重合体、エチレン−ビニルアルコール共重合体、エチレン−エチルアクリレート共重合体、エチレン−アクリル酸共重合体、塩化ビニル−酢酸ビニル共重合体、塩化ビニル−酢酸ビニル−無水マレイン酸共重合体、ポリビニルエーテル、ポリエステル系接着剤、セルロース誘導体などを1〜2μm程度の厚みに積層される。  The transfer foil is used to give a metallic feeling to the surface of the adherend by transferring the metal vapor-deposited layer to the adherend such as paper, film, fabric, leather, and synthetic leather entirely or partially by adhesion. It has been. The transfer foil has a structure in which a release layer, a protective layer, a metal vapor deposition layer, and an adhesive layer are sequentially laminated on a base film from the bottom. As the base film, a polyester film (12 to 25 μm) having excellent heat resistance, transparency, flexibility, mechanical strength, and dimensional stability is mainly used. The release layer is not particularly limited. For example, silicone resin, paraffin wax, cellulose resin, acrylic resin, urethane resin, melamine resin, urea-melamine resin, benzoguanamine resin, or the like can be used alone or in combination. The mixture is laminated to a thickness of 1 μm or less. The protective layer is not particularly limited. For example, acrylic resin, epoxy resin, epoxy-acrylate resin, urethane resin, ethylene resin, urethane-acrylic resin, melamine resin, phenol resin, urea resin, urea. Resin, urea-melamine resin, diallyl phthalate resin, ester resin, alkyd resin, maleated rosin, vinyl butyral resin, cellulose resin, amide resin, thermosetting resin, UV curable resin The electron beam curable resin is used alone or as a mixture thereof and laminated to a thickness of about 1 μm. Deposition metals include aluminum, chromium, nickel, titanium, cobalt, molybdenum, rhodium, palladium, gallium, indium, gold, silver, copper, platinum, zinc, tin, lead, and alloys such as brass and stainless steel. Each imparts a metal feeling with a unique color tone to the adherend. The adhesive layer is generally a hot melt type, for example, polyvinyl acetate copolymer, polyvinyl alcohol, polyvinyl formal, polyvinyl butyral, acrylic adhesive, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, ethylene. -Ethyl acrylate copolymer, ethylene-acrylic acid copolymer, vinyl chloride-vinyl acetate copolymer, vinyl chloride-vinyl acetate-maleic anhydride copolymer, polyvinyl ether, polyester adhesive, cellulose derivative, etc. Laminated to a thickness of about 2 μm.

転写箔に対しても高度なデザイン性が要求されるようになってきた現在では、金属特有の色調だけでは不十分となり、そのため保護層の樹脂を顔料や染料で着色することにより、任意の色調の転写箔を製造することは可能となっている。しかし、このような一色のベタカラーだけでなく、布帛で行なわれているような多色のプリント柄を転写箔に印刷したい、という新しいニーズが出て来ている。これは保護層と金属蒸着層の中間にプリント柄印刷層を設ける工程により一応解決される。即ち、転写箔の各層はグラビア印刷により行なわれるので、基材フイルムに保護層を積層したあとプリント柄をグラビア印刷する工程である。しかし、グラビア製版費用は高価であり数万m以上を一度に印刷しないと採算が合わないという事情がある。一方、プリント柄はベタカラーと違って多様なデザインを小ロットに揃えるという需要である。この結果、製造工程的には実現可能であるが、実際の市場ニーズには対応できないという課題がある。  At present, a high degree of design is required for transfer foils, and the color tone specific to metal is insufficient. Therefore, any color tone can be obtained by coloring the resin of the protective layer with a pigment or dye. It is possible to produce a transfer foil. However, there is a new need to print not only such a solid color but also a multicolored printed pattern on a transfer foil as is done with fabrics. This is temporarily solved by a process of providing a printed pattern printing layer between the protective layer and the metal deposition layer. That is, since each layer of the transfer foil is performed by gravure printing, it is a step of gravure printing a printed pattern after laminating a protective layer on a base film. However, gravure plate making costs are expensive, and there is a situation that it is not profitable unless tens of thousands of meters or more are printed at once. On the other hand, unlike solid colors, the print pattern is a demand to arrange various designs in small lots. As a result, there is a problem that it can be realized in the manufacturing process but cannot meet the actual market needs.

本発明者は製版を必要としないインクジェット印刷方式を、この場合のプリント柄印刷に適用できないか検討した。この結果、転写箔が被着体に接着したあと、基材フイルム剥離後の表面が、溶剤インク受容性となるように転写箔の構成を変えることにより、前記課題を抜本解決できることに思い至った。即ち、基材フイルム上に下から離型層、溶剤インク受容樹脂層、金属蒸着層、接着層を順次積層した構成である。この場合、溶剤インク受容樹脂層が金属蒸着層の保護層となるので、必ずしも従来転写箔のような保護層は必要としない。しかし、本発明の構成においては工程上、溶剤インク受容樹脂層に対して金属蒸着することになるので、溶剤インク受容樹脂のガラス転移点が低い場合などに蒸着工程を阻害することがないように、溶剤インク受容樹脂層上に更に保護層を積層する方式をとってもよいが、これも本発明の実施態様の一つに過ぎないことは明らかである。また被着体自身が転写工程で接着性を発現し得るのであれば、転写箔に接着層を積層しない場合もあり得るが、これも本発明の実施態様の一つに過ぎないことは明らかである。  The inventor examined whether an ink jet printing method that does not require plate making can be applied to print pattern printing in this case. As a result, after the transfer foil was adhered to the adherend, it was thought that the above problem could be drastically solved by changing the configuration of the transfer foil so that the surface after peeling the base film was solvent ink receptive. . In other words, a release layer, a solvent ink receiving resin layer, a metal vapor deposition layer, and an adhesive layer are sequentially laminated on the base film from the bottom. In this case, since the solvent ink receiving resin layer serves as a protective layer for the metal deposition layer, a protective layer such as a conventional transfer foil is not necessarily required. However, in the configuration of the present invention, metal deposition is performed on the solvent ink receiving resin layer in the process, so that the deposition process is not hindered when the glass transition point of the solvent ink receiving resin is low. It is obvious that a protective layer may be further laminated on the solvent ink receiving resin layer, but this is only one embodiment of the present invention. In addition, if the adherend itself can exhibit adhesiveness in the transfer process, an adhesive layer may not be laminated on the transfer foil, but it is clear that this is only one embodiment of the present invention. is there.

溶剤インクとは顔料を有機溶剤に分散したインクを謂う。このときの有機溶剤としてはインクジェットノズルの非閉塞性、およびプリント用メディアへの印刷適性、即ちフイルム表面への固着性、即ちフイルム表面の溶解性を考慮して、強ソルベント性のものから弱ソルベント性のものまで各種のものがあるので、対応する溶剤インク受容樹脂に相応しい有機溶剤を含有するものを選択すればよい。例えばメチルエチルケトン、シクロヘキサノン、酢酸エチル、イソホロンなどのケトン系溶剤、エチレングリコール・モノエチルエーテル・アセテート、エチレングリコール・モノブチルエーテル・アセテートなどのアセテート系溶剤、乳酸エチル、乳酸メチル、乳酸ブチルなどの乳酸エステル系溶剤、およびこれらの混合溶剤などである。  The solvent ink is an ink in which a pigment is dispersed in an organic solvent. As the organic solvent at this time, considering the non-blocking property of the ink jet nozzle and the printability to the printing medium, that is, the fixing property to the film surface, that is, the solubility of the film surface, the solvent having a strong solvent property to the weak solvent is used. Since there are various types of organic solvents, those containing an organic solvent suitable for the corresponding solvent ink receiving resin may be selected. For example, ketone solvents such as methyl ethyl ketone, cyclohexanone, ethyl acetate, isophorone, acetate solvents such as ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, lactate esters such as ethyl lactate, methyl lactate, and butyl lactate Solvents, and mixed solvents thereof.

溶剤インク受容樹脂としては溶剤インクに溶解性を示すものであれば特に制限はないが、一般には塩素含有量が20〜60重量%である熱可塑性樹脂を主成分とするのが好ましい。塩素含有量が20重量%未満である場合は溶剤インクの受容性に劣り、60重量%を超えると溶剤インクへの溶解性が高すぎ、ともに良好な画質が得られない。このような熱可塑性樹脂としては、ポリ塩化ビニリデン及びその共重合体、クロロピレン系合成ゴム、エピクロロヒドリンゴム及びその共重合体、ポリ塩化ビニル及びその共重合体、塩素化ポリ塩化ビニル、塩素化ポリオレフィン等が挙げられる。これらのなかでは特に、塩素化ポリプロピレン、塩素化ポリエチレン、ポリ塩化ビニル、塩化ビニル−酢酸ビニル共重合体、塩化ビニル−アクリル共重合体、塩化ビニル−ウレタン共重合体などが好ましい。溶剤インク受容樹脂層は液体状のインクが表面に着地したとき溢れさせずに、一時的に膨潤状態で保持するので一定の厚みを必要とする。その厚みは一般には3〜20μm程度、好ましくは5〜15μm程度である。  The solvent ink receiving resin is not particularly limited as long as it is soluble in the solvent ink, but it is generally preferable to use a thermoplastic resin having a chlorine content of 20 to 60% by weight as a main component. When the chlorine content is less than 20% by weight, the acceptability of the solvent ink is poor, and when it exceeds 60% by weight, the solubility in the solvent ink is too high, and good image quality cannot be obtained. Such thermoplastic resins include polyvinylidene chloride and its copolymers, chloropyrene-based synthetic rubber, epichlorohydrin rubber and its copolymers, polyvinyl chloride and its copolymers, chlorinated polyvinyl chloride, chlorinated Examples include polyolefin. Among these, chlorinated polypropylene, chlorinated polyethylene, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, vinyl chloride-acrylic copolymer, vinyl chloride-urethane copolymer and the like are particularly preferable. The solvent ink receiving resin layer does not overflow when the liquid ink is landed on the surface, and is temporarily held in a swollen state, and therefore requires a certain thickness. The thickness is generally about 3 to 20 μm, preferably about 5 to 15 μm.

本発明により小ロット単位で所望のデザインを箔被着体に印刷することが可能となった。また金属蒸着層が従来の保護層と違って、溶剤インクが染み込んだ厚手の溶剤インク受容樹脂層で保護されるので耐擦性に非常に優れるようになり、過酷な繰り返し曲げが想定されるバッグや靴製品などに適用しても十分な耐久性を保持できるようになった。  According to the present invention, a desired design can be printed on a foil adherend in small lot units. Also, unlike conventional protective layers, the metal vapor deposition layer is protected by a thick solvent ink receiving resin layer soaked with solvent ink, so it has excellent abrasion resistance and is expected to be severely bent repeatedly Even when applied to products such as shoes, it is possible to maintain sufficient durability.

本発明の転写箔のエッセンスは、従来転写箔における保護層に相当する部分を溶剤インク受容性にすることに尽きる。そのため従来転写箔の製造工程を大部分そのまま準用することになるので、実施例においては本発明に関連する事項を中心に記述する。  The essence of the transfer foil of the present invention is simply to make the portion corresponding to the protective layer in the conventional transfer foil receptive to solvent ink. Therefore, most of the conventional transfer foil manufacturing processes are applied as they are, and therefore, in the examples, the description will focus on matters related to the present invention.

シリコーン系樹脂をコーティングした30μm厚の離型ポリエステルフイルム上に、塩化ビニル−酢酸ビニル共重合樹脂「ソルバインA」(商標、日信化学工業社製)を用いて10μmの厚みの溶剤インク受容樹脂層を積層した。この上に真空蒸着法にてアルミニウムを薄膜形成し、更にその上にエチレン−酢酸ビニル共重合体系の接着層を2μmの厚みに積層し本発明の転写箔を得た。この転写箔を市販の合成皮革に熱圧着し離型フイルムを剥離した。この表面に溶剤インク「SSインク」(商標、ミマキエンジニアリング社製)を用いてカラー印刷したところ良好な印刷画質であった。  A solvent ink receiving resin layer having a thickness of 10 μm using a vinyl chloride-vinyl acetate copolymer resin “Solvine A” (trademark, manufactured by Nissin Chemical Industry Co., Ltd.) on a release polyester film having a thickness of 30 μm coated with a silicone resin. Were laminated. An aluminum thin film was formed thereon by vacuum evaporation, and an ethylene-vinyl acetate copolymer adhesive layer was further laminated thereon to a thickness of 2 μm to obtain a transfer foil of the present invention. This transfer foil was thermocompression bonded to a commercially available synthetic leather to release the release film. When this surface was subjected to color printing using a solvent ink “SS ink” (trademark, manufactured by Mimaki Engineering Co., Ltd.), good print image quality was obtained.

実施例1の離型ポリエステルフイルム上に、塩素化ポリプロピレン樹脂「スーパークロン832L」(商標、日本製紙ケミカル社製)を用いて7μmの厚みの溶剤インク受容樹脂層を積層した。その上にアクリルウレタン樹脂系の保護層を1μmの厚みに積層した。このあと実施例1と同様の手順で蒸着層と接着層の積層をおこない本発明の転写箔を得た。これについても実施例1と同様の良好な印刷画質結果を得た。  On the release polyester film of Example 1, a solvent ink receiving resin layer having a thickness of 7 μm was laminated using a chlorinated polypropylene resin “Supercron 832L” (trademark, manufactured by Nippon Paper Chemicals Co., Ltd.). An acrylic urethane resin-based protective layer was laminated thereon to a thickness of 1 μm. Thereafter, the vapor deposition layer and the adhesive layer were laminated in the same procedure as in Example 1 to obtain the transfer foil of the present invention. Also for this, the same good print image quality result as in Example 1 was obtained.

本発明により、従来の金色や銀色やピンクなどのベタカラー一色だけの画一的な箔押し製品と異なり、任意のデザインのカラフルな箔押し製品を小ロットかつ短納期で製造できるので、個性的で高付加価値な製品の新規マーケットを創造できる。  Unlike the conventional single-color foil stamping products such as gold, silver, and pink, the present invention makes it possible to produce colorful foil stamping products of any design with small lots and short delivery times. Create new markets for valuable products.

Claims (3)

基材フイルム上に下から離型層、溶剤インク受容樹脂層、金属蒸着層、接着層を順次積層してなる転写箔。  A transfer foil obtained by sequentially laminating a release layer, a solvent ink receiving resin layer, a metal vapor deposition layer, and an adhesive layer on a base film from the bottom. 前記溶剤インク受容樹脂層が塩素を20〜60重量%含有する熱可塑性樹脂であること、を特徴とする請求項1記載の転写箔。  The transfer foil according to claim 1, wherein the solvent ink receiving resin layer is a thermoplastic resin containing 20 to 60% by weight of chlorine. 前記溶剤インク受容樹脂層が3〜20μmの厚みであること、を特徴とする請求項1および2記載の転写箔。  3. The transfer foil according to claim 1, wherein the solvent ink receiving resin layer has a thickness of 3 to 20 [mu] m.
JP2008145100A 2008-05-07 2008-05-07 Transfer foil for ink-jet printing Pending JP2009269384A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018176581A (en) * 2017-04-14 2018-11-15 株式会社ミマキエンジニアリング Medium and production method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018176581A (en) * 2017-04-14 2018-11-15 株式会社ミマキエンジニアリング Medium and production method thereof
JP2021183418A (en) * 2017-04-14 2021-12-02 株式会社ミマキエンジニアリング Method for producing medium, and medium
JP7361074B2 (en) 2017-04-14 2023-10-13 株式会社ミマキエンジニアリング Media manufacturing method

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