JP3337479B2 - Transfer foil - Google Patents
Transfer foilInfo
- Publication number
- JP3337479B2 JP3337479B2 JP06270091A JP6270091A JP3337479B2 JP 3337479 B2 JP3337479 B2 JP 3337479B2 JP 06270091 A JP06270091 A JP 06270091A JP 6270091 A JP6270091 A JP 6270091A JP 3337479 B2 JP3337479 B2 JP 3337479B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- pattern
- adhesive
- transfer foil
- transfer
- 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.)
- Expired - Fee Related
Links
Landscapes
- Printing Methods (AREA)
- Decoration By Transfer Pictures (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は転写後の被転写体に立体
感を有する意匠を付与するための転写箔に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer foil for imparting a three-dimensional design to an object to be transferred after transfer.
【０００２】[0002]
【従来の技術】従来から、弱電製品、化粧品容器及び建
材部材等で使用されている成形製品等において、予め所
望の意匠を形成した装飾層を有する転写箔が、該製品の
表面に転写箔の装飾層を転移させて、製品表面の意匠性
を容易に向上させる手段として用いられている。従来、
上記転写箔は剥離性の基材シート表面に剥離層、絵柄模
様等の装飾層、接着剤層等からなる転写層を積層した構
成が知られている。しかし、従来の上記転写箔は絵柄層
による意匠が平面的でものであり、製品に立体感を有す
る意匠を付与することが困難であった為、転写箔の接着
剤層を所望の部分にパターン状に盛り上げて形成し、転
写箔を製品に転写した際に、転写層のパターン状に設け
た接着剤層の部分が盛り上がり、凹凸を形成して、意匠
を立体的に見せるように形成された転写箔が知られてい
る。上記転写箔は意匠付与すべき物品の表面に重ね合わ
せて接着後、基材シートを剥離することにより、絵柄模
様等の意匠が物品側に転写され、転写された意匠は転写
層に形成された凹凸により意匠が立体的に見えるもので
あった。2. Description of the Related Art Conventionally, in a molded product used for a weak electric product, a cosmetic container, a building material, or the like, a transfer foil having a decorative layer in which a desired design is formed in advance is formed on the surface of the transfer foil. It is used as a means of transferring a decorative layer to easily improve the design of the product surface. Conventionally,
It is known that the transfer foil has a structure in which a transfer layer composed of a release layer, a decorative layer such as a picture pattern, an adhesive layer and the like is laminated on the surface of a peelable base material sheet. However, in the conventional transfer foil, the design by the picture layer is planar, and it is difficult to give a design having a three-dimensional appearance to the product. Therefore, the adhesive layer of the transfer foil is patterned in a desired portion. When the transfer foil is transferred to the product, the part of the adhesive layer provided in the pattern of the transfer layer swells to form irregularities, and the transfer is formed so that the design looks three-dimensional. Foil is known. The transfer foil was superimposed on and bonded to the surface of the article to be provided with the design, and by peeling off the base sheet, the design such as a picture pattern was transferred to the article side, and the transferred design was formed on the transfer layer. The design looked three-dimensional due to the unevenness.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
接着剤層をパターン状に形成した転写箔は、それ以前の
転写箔（装飾層に平面的な意匠を形成した転写箔）に比
較して、立体感が改良されているものの未だ不十分なも
のであった。本発明は上記従来技術の欠点を解消するた
めに成されたもので、立体感があり意匠性に富んだ表面
外観を付与できる転写箔を提供することを目的とする。However, the transfer foil having the above-mentioned adhesive layer formed in a pattern has a smaller size than the previous transfer foil (the transfer foil having a flat design formed on the decorative layer). Although the three-dimensional appearance was improved, it was still insufficient. The present invention has been made to solve the above-mentioned disadvantages of the prior art, and has as its object to provide a transfer foil capable of giving a three-dimensional appearance and a surface appearance rich in design.
【０００４】[0004]
【課題を解決するための手段】本発明は、(1)剥離性の
基材シート表面に剥離層、装飾層、接着剤層を順次積層
してなる転写箔において、基材シートには凹凸模様が形
成され、剥離層の基材シート側に基材シートの凹凸模様
によって賦型された凹凸模様が形成され、上記接着剤層
が全面ベタ接着剤部と該全面ベタ接着剤部の上に設けた
パターン接着剤部とから形成され、パターン接着剤部が
全面ベタ接着剤部を形成する樹脂と比較して10〜50℃程
度Tgの高い樹脂であり、接着剤層のTgが50〜90℃である
ことを特徴とする転写箔、(2)装飾層に光輝性層を有す
る上記(1)記載の転写箔、を要旨とするものである。The present invention SUMMARY OF THE INVENTION (1) a release layer on the release of the surface of the substrate sheet, the decorative layer, in a transfer foil comprising an adhesive layer are sequentially laminated, uneven pattern in the substrate sheet Is formed on the base sheet side of the release layer, and a concavo-convex pattern formed by the concavo-convex pattern of the base sheet is formed, and the adhesive layer is provided on the whole solid adhesive part and the whole solid adhesive part. The pattern adhesive portion is a resin having a higher Tg of about 10 to 50 ° C. compared to the resin forming the entire solid adhesive portion, and the Tg of the adhesive layer is 50 to 90 ° C. (2) The transfer foil according to the above (1) , wherein the transfer foil has a glittering layer in the decorative layer.
【０００５】[0005]
【実施例】以下、本発明の実施例を図面に基づき詳細に
説明する。図１は本発明転写箔の１実施例を示すもの
で、図１に示すように本発明転写箔１は、剥離性の基材
シート２表面に剥離層３、金属蒸着層からなる装飾層
４、接着剤層５からなる転写層６を順次積層してなる転
写箔であり、剥離層３の基材シート２側に凹凸模様７が
形成され、上記接着剤層５が全面ベタ接着剤部８とパタ
ーン接着剤部９とからなり、上記接着剤層５は全面ベタ
接着剤部８と装飾層４が接するように設けられている構
成を有する。尚、装飾層４と剥離層３の間には必要に応
じてプライマー層３０が設けられている。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of the transfer foil of the present invention. As shown in FIG. 1, the transfer foil 1 of the present invention has a release layer 3 on the surface of a peelable base material sheet 2 and a decorative layer 4 made of a metal deposition layer. A transfer foil formed by sequentially laminating a transfer layer 6 composed of an adhesive layer 5, a concavo-convex pattern 7 is formed on the base sheet 2 side of the release layer 3, and the adhesive layer 5 The adhesive layer 5 has a configuration in which the solid adhesive section 8 and the decorative layer 4 are provided in contact with each other. Note that a primer layer 30 is provided between the decorative layer 4 and the release layer 3 as necessary.
【０００６】基材シート２は、凹凸模様７を有し剥離層
３と離型性を有するものであればよく、特に限定されな
い。基材シート２の材質として、例えば、ポリエチレン
テレフタレート等のポリエステル、ナイロン等のポリア
ミド、ポリ塩化ビニル、ポリメタクリル酸メチル等のア
クリル樹脂、ポリカーボネート、ポリスチレン、ポリア
クリレート、フッ素系樹脂、ポリプロピレン、三酢酸セ
ルロース、セロファン等からなるプラスチックフィル
ム、或いは銅、鉄、アルミニウム等の金属箔、紙等が挙
げられ、これらを単独で使用しても又は適宜積層させた
基材として使用しても良い。フィルム基材２の厚さは用
途に応じて適宜選択されるが、一般に１０〜１００μ
ｍ、好ましくは２５〜５０μｍである。また、基材シー
ト２上に離型層を設けてもよく、離型層は一般的にはメ
ラミン、アミノ、ウレタン等の樹脂を0.１〜１μｍ程度
の厚みに塗布して形成することができる。The base sheet 2 is not particularly limited as long as it has a concavo-convex pattern 7 and has releasability from the release layer 3. As the material of the base sheet 2, for example, polyester such as polyethylene terephthalate, polyamide such as nylon, acrylic resin such as polyvinyl chloride, polymethyl methacrylate, polycarbonate, polystyrene, polyacrylate, fluororesin, polypropylene, cellulose triacetate And a plastic film made of cellophane or the like, or a metal foil such as copper, iron or aluminum, paper, or the like. These may be used alone or as a base material appropriately laminated. The thickness of the film substrate 2 is appropriately selected according to the application, but is generally 10 to 100 μm.
m, preferably 25 to 50 μm. Further, a release layer may be provided on the base sheet 2, and the release layer is generally formed by applying a resin such as melamine, amino, urethane or the like to a thickness of about 0.1 to 1 μm. it can.
【０００７】剥離層３は基材シート２と剥離性を容易な
らしめ転写後は転写層６の表面形状を賦与するために設
けるもので、その樹脂組成は転写後の表面保護層として
所望の物性を有するように選定する。特に表面の耐擦傷
性、耐汚染性を要する場合は熱硬化性樹脂又は電離放射
線硬化性樹脂が通常用いられる。剥離層３の厚みは通常
0.１〜１０μｍ程度に形成する。剥離性３を形成する樹
脂として例えばセルロース誘導体、スチレン系樹脂、ア
クリル系樹脂、ビニル重合体等の熱可塑性樹脂、フェノ
ール樹脂、メラミン樹脂等の熱硬化性樹脂、電離放射線
硬化性樹脂等が挙げられる。また剥離層３には着色や艶
消し剤の添加を行うこともできる。The release layer 3 is provided for facilitating the releasability with the base sheet 2 and for imparting the surface shape of the transfer layer 6 after the transfer, and the resin composition thereof has the desired physical properties as a surface protective layer after the transfer. Is chosen to have In particular, when abrasion resistance and stain resistance of the surface are required, a thermosetting resin or an ionizing radiation-curable resin is usually used. The thickness of the release layer 3 is usually
It is formed to a thickness of about 0.1 to 10 μm. Examples of the resin forming the releasability 3 include a cellulose derivative, a styrene resin, an acrylic resin, a thermoplastic resin such as a vinyl polymer, a phenol resin, a thermosetting resin such as a melamine resin, and an ionizing radiation curable resin. . The release layer 3 can also be colored or added with a matting agent.
【０００８】装飾層４は天然物を模写した絵柄や図形、
記号、文字、着色層等の絵柄を公知の印刷方法で２〜６
μｍに形成したものであればよいが、転写層により立体
感を付与するという点から、特に光輝性を有する層（光
輝性層）を設けることが好ましい。光輝性層としては、
真珠光沢顔料、金属粉顔料等よりなる光輝性インキ層、
又は金属蒸着層が利用される。特にアルミニウム等の金
属を真空蒸着等で４０〜６００Å程度の厚みに形成した
ものが好ましい。また、装飾層を設ける場合には、図１
に示したようにプライマー層３０を剥離層３の表面に予
め設けておくと、密着性が向上するために、転写時に剥
離層が装飾層と剥離したり、転写後の経時的な密着性の
低下を防止できる。プライマー層３０は、例えばウレタ
ン系樹脂、シランカップリング剤等を0.１〜１μｍの厚
さに塗布して形成する。また、装飾層４は１層に限らず
２層以上設けてもよい。[0008] The decorative layer 4 is a pattern or figure that is a copy of a natural product.
Symbols, characters, patterns such as colored layers, etc. are printed in a known
Any layer may be used as long as it has a thickness of μm, but it is particularly preferable to provide a glittering layer (glitter layer) from the viewpoint of imparting a three-dimensional effect to the transfer layer. As the glitter layer,
Glitter ink layer composed of pearlescent pigment, metal powder pigment, etc.
Alternatively, a metal deposition layer is used. In particular, it is preferable to form a metal such as aluminum to a thickness of about 40 to 600 ° by vacuum evaporation or the like. When a decorative layer is provided, FIG.
If the primer layer 30 is provided in advance on the surface of the release layer 3 as shown in FIG. 3, the release layer is peeled off from the decorative layer during the transfer, and the adhesion over time after the transfer is improved. Drop can be prevented. The primer layer 30 is formed by applying, for example, a urethane-based resin, a silane coupling agent, or the like to a thickness of 0.1 to 1 μm. Further, the decorative layer 4 is not limited to one layer and may be provided in two or more layers.
【０００９】接着剤層５は転写層６を成形品等に密着さ
せるために設けるもので、その材質はこの種の転写箔に
通常使用されている接着層の材質と同様のものが使用で
きる。例えばアクリル樹脂、スチレン樹脂、塩化ビニル
樹脂、塩化ビニル−酢酸ビニル共重合体等の熱可塑性樹
脂の、Ｔｇが４５〜９０°Ｃ程度のものが挙げられる。
接着剤層５の厚みは特に限定されないが、0.５〜３μｍ
程度が望ましく、全面ベタ接着剤部８とパターン接着剤
部９との厚みは２〜２０μｍに形成するのが好ましい。
また、パターン接着剤部９と全面ベタ接着剤部８の材質
は同じでもよいが、転写時にパターンを強調するために
は、パターン接着剤部９を、接着剤を構成する樹脂にシ
リカ、タルク、炭酸マグネシウム等の無機充填剤を１〜
１０重量％添加したり、全面ベタ接着剤部８を形成する
樹脂と比較して１０〜５０°Ｃ程度Ｔｇの高い樹脂を使
用して、接着剤層のＴｇが５０〜９０°Ｃの材質を用い
ることが好ましい。The adhesive layer 5 is provided for bringing the transfer layer 6 into close contact with a molded product or the like, and the material thereof may be the same as the material of the adhesive layer usually used for this type of transfer foil. For example, thermoplastic resins such as acrylic resins, styrene resins, vinyl chloride resins, and vinyl chloride-vinyl acetate copolymers having a Tg of about 45 to 90 ° C. are exemplified.
Although the thickness of the adhesive layer 5 is not particularly limited, it is 0.5 to 3 μm.
It is preferable that the thickness of the solid adhesive portion 8 and the pattern adhesive portion 9 be 2 to 20 μm.
Further, the material of the pattern adhesive portion 9 and the material of the entire surface solid adhesive portion 8 may be the same, but in order to emphasize the pattern at the time of transfer, the pattern adhesive portion 9 is formed by using silica, talc, Add inorganic filler such as magnesium carbonate
10% by weight or using a resin having a Tg of about 10 to 50 ° C. higher than that of the resin forming the entire solid adhesive portion 8, and using a material having a Tg of the adhesive layer of 50 to 90 ° C. Preferably, it is used.
【００１０】接着剤層５の形状は、転写層６を凸状に形
成する部位に転写箔外方に突出するようにパターン接着
剤部を形成すればよいが、図１に示すように接着剤層
は、先ず全面ベタ接着剤部８を設け、次いで上記パター
ン接着剤部９を形成するといった具合に、接着剤層５を
２層に分けて形成すると、接着剤層５の形成が容易であ
り好ましい。パターン接着剤部９のパターンは抽象柄、
ヘアライン調、木の道管や夏目、冬目部等の浮き造り凹
凸等の木目柄等があり、これらのパターンは転写時の熱
により接着剤が熔融し、若干意匠が変化することを見越
して、所望の大きさよりも少し大きく形成しておくこと
が好ましい。また、上記パターンは剥離層３に形成した
凹凸模様７に比べ大きな柄にすることが望ましい。本発
明転写箔では、接着剤パターン部９の形状と基材シート
２の凹凸模様７とを同調させると、特に立体感、天然物
外観を模した場合の再現性（リアル感）等に優れた意匠
が得られる。接着剤パターン部９と凹凸模様７を同調さ
せた例として例えば、図１に示したように、艶消し状と
なるように凹凸模様７を形成し、凹凸模様のない部分に
パターン接着剤層を設けると、被転写体に転写後（図
２）凹部が艶消し状になり、物理的凹凸に加え、艶消し
部が光沢部より相対的に凹んで見える視覚効果との相乗
効果により、意匠に立体感を出すことができる。As for the shape of the adhesive layer 5, a pattern adhesive portion may be formed so as to protrude outward from the transfer foil at a portion where the transfer layer 6 is formed in a convex shape. If the adhesive layer 5 is formed in two layers, for example, the entire surface is provided with the solid adhesive portion 8 and then the pattern adhesive portion 9 is formed, the adhesive layer 5 is easily formed. preferable. The pattern of the pattern adhesive part 9 is an abstract pattern,
There are hairline tones, wood grain patterns, wood grain patterns such as embossed irregularities such as summer eyes and winter eyes, etc. In anticipation that the adhesive will melt due to the heat during transfer and the design will change slightly However, it is preferable to form them slightly larger than the desired size. Further, it is desirable that the above-mentioned pattern is a pattern larger than the concavo-convex pattern 7 formed on the release layer 3. In the transfer foil of the present invention, when the shape of the adhesive pattern portion 9 and the concavo-convex pattern 7 of the base sheet 2 are synchronized, excellent reproducibility (real feeling) particularly when imitating a three-dimensional appearance and a natural product appearance is obtained. A design is obtained. As an example of synchronizing the adhesive pattern portion 9 and the concavo-convex pattern 7, for example, as shown in FIG. 1, the concavo-convex pattern 7 is formed so as to have a matte shape, and the pattern adhesive layer is formed on a portion having no concavo-convex pattern. When provided, the concave portion becomes mat-like after transfer to the transfer target (FIG. 2), and in addition to the physical unevenness, the matte portion has a synergistic effect with the visual effect that the matte portion appears to be more dented than the glossy portion, so that the design is It can give a three-dimensional effect.
【００１１】凹凸模様７は砂目、梨地、木目道管・・・
・等の各種模様が可能であるが、立体感の点から特に精
密万線エンボス模様が好ましい。精密万線エンボス模様
とは、万線状の溝状凹凸部からなる凹凸形状である。全
て同一方向に走る一定周期万線の他、平曲線領域の中に
平行な直線群又は曲線群を形成する凹凸乃至溝を含んだ
凹凸形状の集合体であって、任意の２領域の境界を介し
て隣接する直線群又は曲線群の方向のなす角度が総て異
なる形状のものもある。後者の形状は各平領域が異なっ
た艶の模様に見え、又視差によって各閉領域の光沢が変
化する意匠を有する。The uneven pattern 7 is made of sand, pear, wood grain, etc.
Although various patterns such as 、 are possible, a precision line embossed pattern is particularly preferable in terms of a three-dimensional effect. The precision line embossed pattern is a concavo-convex shape composed of line-shaped groove-shaped concavo-convex portions. In addition to a fixed periodic line that runs all in the same direction, a set of uneven shapes including unevenness or grooves forming parallel straight lines or curves in a flat curve area, and a boundary between any two areas. In some cases, the angles formed by the directions of the groups of straight lines or curves adjacent to each other are all different. The latter shape has a design in which each flat area looks like a different glossy pattern, and the gloss of each closed area changes according to parallax.
【００１２】特に上記後者の平行な直線群又は曲線群を
光沢の変化の模様として認識する為には、線の深さ及び
間隔が0.1 〜１００μｍであり、隣接する直線群又は曲
線群の方向のなす角度が５°以上の場合が望ましい。
又、任意の２閉領域の境界を介して隣接する線群同志の
角度を総て異なる用にするには、位相幾何学の４色問題
の定理から、角度の種類は４種類が必要十分条件であ
る。In particular, in order to recognize the latter parallel straight line group or curve group as a pattern of a change in gloss, the line depth and interval are 0.1 to 100 μm, and the direction of the adjacent straight line group or curve group is determined. It is desirable that the angle formed is 5 ° or more.
Also, in order to make the angles of adjacent line groups different from each other through the boundary of any two closed regions, four types of angles are necessary and sufficient from the theorem of the four-color problem of topology. It is.
【００１３】本発明では、上記の凹凸模様と転写箔外方
にパターン状に突設した接着剤層を設けることが重要で
あり、特に好ましくは上記凹凸模様を精密万線パターン
を用い、該凹凸模様を転写層が被転写体に転写された際
に凹部になる位置に同調させて設けると、立体感が強調
されて本発明の効果を最大に発揮する事ができる。In the present invention, it is important to provide an adhesive layer protruding in a pattern form on the outer side of the above-mentioned uneven pattern and the transfer foil. Particularly preferably, the above-mentioned uneven pattern is formed by using a precise line pattern. When the pattern is provided in synchronism with a position where the pattern becomes a concave portion when the transfer layer is transferred to the transfer object, the three-dimensional effect is emphasized, and the effect of the present invention can be maximized.
【００１４】次に、本発明転写箔の製造方法について説
明する。本発明転写箔１は基材シート２の表面に予め凹
凸模様を形成し、該基材シート２の凹凸模様７を形成し
た面に剥離層３、装飾層４、接着剤層５を順次積層する
ことで形成できる。尚、基材シートに設ける凹凸模様は
剥離層表面に賦型する凹凸模様７に対応した模様（ネ
ガ）であり、この基材シート上に剥離層を形成すること
により、転写後の転写層の表面（即ち、剥離層の表面）
に凹凸模様７を形成することができる。基材シート２の
表面に凹凸模様７を形成する方法として具体的には、 Ａ）基材シートにエンボス加工により凹凸模様を付与す
る方法、 Ｂ）基材シート表面に電離放射線硬化性樹脂層を形成し
未硬化の状態で凹凸模様を賦型した後硬化させる方法、 Ｃ）ロール凹版の凹部に電離放射線硬化性樹脂を充填し
て基材シートを該凹版に当接させた状態で電離放射線を
照射して硬化させる方法、等がある。Next, a method for producing the transfer foil of the present invention will be described. In the transfer foil 1 of the present invention, a concavo-convex pattern is previously formed on the surface of the base sheet 2, and the release layer 3, the decorative layer 4, and the adhesive layer 5 are sequentially laminated on the surface of the base sheet 2 on which the concavo-convex pattern 7 is formed. Can be formed. The concave and convex pattern provided on the base sheet is a pattern (negative) corresponding to the concave and convex pattern 7 formed on the surface of the release layer. By forming the release layer on this substrate sheet, Surface (ie, surface of release layer)
The concavo-convex pattern 7 can be formed. Specifically, the method of forming the concavo-convex pattern 7 on the surface of the base sheet 2 is as follows: A) a method of providing a concavo-convex pattern on the base sheet by embossing, B) a method of forming an ionizing radiation-curable resin layer on the base sheet surface. A method of forming and curing an uneven pattern in an uncured state, followed by curing. C) Filling the concave portions of the roll intaglio with an ionizing radiation-curable resin and applying ionizing radiation in a state where the base sheet is in contact with the intaglio. There is a method of curing by irradiation.
【００１５】上記Ａ）は、予め所望の凹凸模様に対応し
た凹凸模様を設けたエンボス版を形成し、基材シートに
熱可塑性樹脂シートを用い、１４０°Ｃ〜１８０°Ｃ程
度に加熱し、上記エンボス版を１０〜６０秒、圧力１０
〜１００kg／cm2 で圧着した後、４０〜１００°Ｃで冷
却してエンボス版の凹凸模様を基材シートに転移させ
る。上記エンボス版に凹凸模様を設けるには、所望の凹
凸模様を撮影した原版を用い金属板等にフォトエッチン
グ方法等にて加工を行う。また本方法でポリイミド等の
ように耐熱性の高い基材シーを使用する際は、上記のよ
うな方法ではエンボスが入りにくいために、エンボス版
を２枚のネガ／ポジの関係にあるロール凹版として形成
し、両ロールの間に基材シートをロールプレスしたり、
また上記のロールに基材シートを２回通しを行って凹凸
模様を付与することもできる。また基材シートの表面に
耐熱性の樹脂層を形成し、その上からエンボス加工を施
してもよい。In the above A), an embossing plate provided with a concavo-convex pattern corresponding to a desired concavo-convex pattern is formed in advance, and a thermoplastic resin sheet is used as a base sheet, and heated to about 140 ° C. to 180 ° C. The embossing plate is pressed for 10 to 60 seconds at a pressure of 10
After pressing at 〜100 kg / cm 2 , the embossed plate is cooled at 40 to 100 ° C. to transfer the uneven pattern of the embossing plate to the base sheet. In order to provide the embossed plate with the concavo-convex pattern, a metal plate or the like is processed by a photoetching method or the like using an original plate in which a desired concavo-convex pattern is photographed. In addition, when using a substrate sheet having high heat resistance, such as polyimide, in the present method, embossing is difficult to be performed by the above-described method. Therefore, two negative / positive roll intaglio plates are used. Formed as, and roll press the base sheet between both rolls,
Further, the base sheet may be passed through the roll twice to provide an uneven pattern. Alternatively, a heat-resistant resin layer may be formed on the surface of the base sheet, and embossing may be performed thereon.
【００１６】上記Ｂ）は、基材シート上に未硬化状態で
は常温では熱可塑性の電離放射線硬化性樹脂層を形成
し、上記樹脂層に未硬化状態でエンボス加工を施した
後、電離放射線を照射して電離放射線硬化性樹脂を硬化
させて、エンボス加工による凹凸模様を固定する方法で
ある。上記の電離放射線硬化性樹脂はラジカル重合性不
飽和基を有する熱可塑性物質であり、次の２種類のもの
がある。(1) ガラス転移温度が０〜２００°Ｃのポリマ
ー中にラジカル重合性不飽和基を含むものであり、具体
的には、水酸基、カルボキシル基、エポキシ基、イソシ
アネート基等の重付加の可能な官能基と、ラジカル重合
可能な官能基（ビニル基、アクリロイ基）とを有する単
量体の重合体または（メタ）アクリレート類等との共重
合体に、重付加の可能な官能基を利用してラジカル重合
不飽和基を導入したものである。(2)融点が０〜２５０
°Ｃであり、ラジカル重合性不飽和基を有する化合物で
あり、具体的にはステアリルアクリレート、ステアリル
メタクリレート、トリアクリルイソシアヌレート、シク
ロヘキサンジオールジアクリレート、シクロヘキサンジ
オールジメタクリレート等が挙げられる。In the above B), a thermoplastic ionizing radiation-curable resin layer is formed at room temperature in an uncured state on an uncured state, and the resin layer is subjected to embossing in an uncured state. This is a method of curing the ionizing radiation-curable resin by irradiation and fixing the embossed pattern. The ionizing radiation-curable resin is a thermoplastic material having a radically polymerizable unsaturated group, and includes the following two types. (1) A polymer having a glass transition temperature of 0 to 200 ° C. containing a radically polymerizable unsaturated group. Specifically, a hydroxyl group, a carboxyl group, an epoxy group, an isocyanate group or the like can be polyadded. Utilizing a functional group capable of polyaddition to a polymer of a monomer having a functional group and a functional group capable of radical polymerization (vinyl group, acryloy group) or a copolymer of (meth) acrylates or the like In this case, a radically polymerized unsaturated group is introduced. (2) Melting point is 0 to 250
It is a compound having a radical polymerizable unsaturated group at a temperature of ° C, and specific examples include stearyl acrylate, stearyl methacrylate, triacryl isocyanurate, cyclohexanediol diacrylate, and cyclohexanediol dimethacrylate.
【００１７】上記Ｃ）は、図３に示すように、先ずロー
ル凹版10の凹部11に電離放射線硬化性樹脂12を塗工装置
13により充填し、ロール凹版10に基材シート２を充填さ
せた樹脂12にも接するように押圧ロール21を用いて接触
させる。次いで、フィルム基材２がロール凹版10に接し
ている間（具体的には図中の押圧ロール21と送りロール
22との間に位置している時期）に、電離放射線照射装置
17により電離放射線を照射してロール凹版10の凹部11内
にある硬化性樹脂14を基材シート２に密着せしめる。(
電離放射線硬化性樹脂12が基材シートとロール凹版10の
凹部11の間に保持されている状態で電離放射線を照射し
て硬化させ、照射装置17を通過した後、フィルム基材２
をロール凹版11から剥離する。) これにより、硬化した
電離放射線硬化性樹脂12が基材シート２と一体となっ
て、凹部11から脱離され凹凸模様を７を形成した基材シ
ート２が得られ、この方法によると電離放射線硬化性樹
脂を塗布した凹版に基材シートが接している間に電離放
射線を照射して樹脂を硬化させるために凸部の形状を再
現性良好に形成することができる。In the above C), as shown in FIG. 3, an ionizing radiation-curable resin 12 is first applied to a concave portion 11 of a roll intaglio 10 by a coating apparatus.
The resin in which the base sheet 2 is filled into the roll intaglio 10 is brought into contact with the resin 12 using the pressing roll 21 so as to be in contact with the resin 12. Next, while the film substrate 2 is in contact with the roll intaglio 10 (specifically, the pressing roll 21 and the feed roll
22), the ionizing radiation irradiation device
Irradiation with ionizing radiation 17 causes the curable resin 14 in the concave portion 11 of the roll intaglio 10 to adhere to the base sheet 2. (
After the ionizing radiation-curable resin 12 is held between the base sheet and the concave portion 11 of the roll intaglio 10 by irradiation with ionizing radiation and cured, and after passing through the irradiation device 17, the film substrate 2
Is peeled from the roll intaglio 11. As a result, the cured ionizing radiation-curable resin 12 is integrated with the substrate sheet 2 to obtain the substrate sheet 2 which is detached from the concave portion 11 to form the concavo-convex pattern 7. According to this method, the ionizing radiation Since the resin is cured by irradiating ionizing radiation while the base sheet is in contact with the intaglio coated with the curable resin, the shape of the convex portion can be formed with good reproducibility.
【００１８】尚、上記の電離放射線としては、例えば超
高圧水銀灯、高圧水銀灯、低圧水銀灯、カーボンアー
ク、ブラックライトランプ、メタルハライドランプ等の
光源から照射される紫外線、コックロフトワルトン型、
バンデグラフ型、共振変圧器型、絶縁コア変圧器型、あ
るいは直線型、ダイナミトロン型、高周波型等の各種電
子線加速器等の照射源から照射される電子線等を用いる
ことができる。また、上記のロール凹版10はクロムメッ
キした銅、鉄等の金属、ガラス等のセラミックス、シリ
コン樹脂等の合成樹脂を用い、光蝕刻法、電鋳法、ミル
加工法等の方法で所望の凹部を形成したものを用いる。
上記電離放射線硬化性樹脂のロール凹版への塗工は、Ｔ
ダイ型のノズル塗工装置（図３）、ロールコート法、ナ
イフコート法等の塗工装置を用いることができる。The ionizing radiation includes, for example, ultraviolet rays emitted from a light source such as an ultra-high pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc, a black light lamp, a metal halide lamp, a Cockloft-Walton type,
An electron beam emitted from an irradiation source such as a bande graph type, a resonance transformer type, an insulating core transformer type, or various electron beam accelerators such as a linear type, a dynamitron type, and a high frequency type can be used. The above-mentioned roll intaglio 10 is made of a metal such as chrome-plated copper or iron, a ceramic such as glass, or a synthetic resin such as a silicone resin, and is formed by a method such as photo-etching, electroforming, or milling. Is used.
The coating of the ionizing radiation curable resin on the roll intaglio is performed by T
A die-type nozzle coating device (FIG. 3), a coating device such as a roll coating method and a knife coating method can be used.
【００１９】本発明転写箔を使用するにあたっては、例
えば図２に示すように、転写層の意匠を賦与しようとす
る被転写体３１の表面と、本発明転写箔１の接着剤層５
が当接するように積層し、転写箔１を押圧し必要に応じ
加熱等を施して密着させた後に基材シート１を剥離する
と、被転写体３１の表面に凹凸模様７とパターン接着剤
部９に対応した凹凸形状を有する意匠が賦与される。こ
の場合、転写層６は接着剤層５のパターン接着剤部９を
設けた部分が凸部となり、パターン接着剤部のない部分
が凹部となりパターン接着剤部９に応じた凹凸を形成す
ることができる。In using the transfer foil of the present invention, for example, as shown in FIG. 2, the surface of the transfer object 31 to which the design of the transfer layer is to be provided and the adhesive layer 5 of the transfer foil 1 of the present invention are used.
When the base sheet 1 is peeled off after the transfer foil 1 is pressed and heated or the like is applied as necessary to make it adhere, the uneven pattern 7 and the pattern adhesive portion 9 are formed on the surface of the transfer object 31. A design having a concavo-convex shape corresponding to is provided. In this case, in the transfer layer 6, the portion where the pattern adhesive portion 9 of the adhesive layer 5 is provided becomes a convex portion, and the portion without the pattern adhesive portion becomes a concave portion, and irregularities corresponding to the pattern adhesive portion 9 can be formed. it can.
【００２０】次に具体的実施例を挙げて本発明を更に詳
細に説明する。 実施例１ 厚さ２５μｍのポリエチレンテレフタレートフィルム
（東レ製：Ｔ−６０）を基材シートとして用い、該基材
シートの表面に凹凸模様（木目導管柄）を有するエンボ
ス版を用いて、２００°Ｃに加熱した状態の平版プレス
装置に基材シートを入れて１０分間加熱プレスを行い、
冷却した後該シートを取り出して基材シートに凹凸模様
を設けた。次に上記基材シートの凹凸模様面にアクリル
樹脂からなる剥離層（昭和インク工業所製：ハクリ４６
−７）を２μｍ厚みにグラビアコートで設け、該剥離層
の上にウレタン樹脂系の蒸着プライマー層（昭和インク
工業所製：シランカップリング）を１μｍ厚みに塗工し
て１７０°Ｃ×１分間乾燥し、該プライマー層の上に真
空蒸着処理を施して５００Åの厚さにアルミ蒸着層を形
成した。次いで、アルミ蒸着層の上にアクリル系の接着
剤（昭和インク工業所製：ＨＳ−３２）を２μｍ厚みに
ベタ印刷を行って全面ベタ接着剤層を形成し、更に該全
面ベタ接着剤層の上に木目のパターン状にアクリル系接
着剤（昭和インク工業所製：ＨＳ−４２）を２μｍ厚み
にグラビア印刷を行い転写箔を得た。得られた転写箔を
用い、ＡＢＳ基材に２００°Ｃ×２ｍ／分の条件でロー
ル転写を行い基材シートを剥離したところ、立体的な意
匠感を有する転写成型品が得られた。Next, the present invention will be described in more detail with reference to specific examples. Example 1 A polyethylene terephthalate film having a thickness of 25 μm (T-60, manufactured by Toray Industries, Inc.) was used as a base sheet, and an embossing plate having a concavo-convex pattern (wood grain pipe pattern) on the surface of the base sheet was used at 200 ° C. Put the base sheet in the lithographic press machine in the state of being heated, and heat-press for 10 minutes,
After cooling, the sheet was taken out and an uneven pattern was formed on the base sheet. Next, a release layer made of an acrylic resin (manufactured by Showa Ink Industry Co., Ltd.
-7) is applied by gravure coating to a thickness of 2 μm, and a urethane resin-based vapor deposition primer layer (manufactured by Showa Ink Industries, Ltd .: silane coupling) is applied to a thickness of 1 μm on the release layer, and the coating is performed at 170 ° C. for 1 minute. After drying, a vacuum deposition treatment was performed on the primer layer to form an aluminum deposition layer having a thickness of 500 °. Then, an acrylic adhesive (HS-32, manufactured by Showa Ink Industries, Ltd.) was solid-printed to a thickness of 2 μm on the aluminum vapor-deposited layer to form a solid adhesive layer on the entire surface. An acrylic adhesive (HS-42, manufactured by Showa Ink Industries, Ltd.) was gravure-printed to a thickness of 2 μm on the upper surface in a wood grain pattern to obtain a transfer foil. Using the obtained transfer foil, roll transfer was performed on the ABS base material at 200 ° C. × 2 m / min, and the base sheet was peeled off. As a result, a transfer molded product having a three-dimensional design feeling was obtained.
【００２１】[0021]
【発明の効果】以上説明したように、本発明転写箔は剥
離層の基材シート側に凹凸模様が形成され、接着剤層に
転写箔外方に向けて突設したパターン接着剤部を有する
構成を採用したことにより、従来のパターン接着剤層を
形成しただけの転写箔と比較して、被転写体に転写後の
転写層はパターン接着剤層の部分が凸状になり、パター
ン接着剤層を形成しない部分が凹状に形成されて装飾層
に凹凸が表現され、剥離層に形成した凹凸模様とあいま
って、従来得られなかった立体感が得られ、意匠性に富
んだ表面外観を被転写体表面に付与できる転写箔が得ら
れる効果を有する。また上記転写箔において、接着剤層
を全面ベタ接着剤部と該全面ベタ接着剤部の上に設けた
パターン接着剤部とから形成した場合、転写箔の接着剤
層を容易に形成することができる。また本発明転写箔に
おいて、パターン接着剤部は接着剤を構成する樹脂に無
機充填材が1〜10重量%添加されているか、或いは、パタ
ーン接着剤部が全面ベタ接着剤部を形成する樹脂と比較
して10〜50℃程度Tgの高い樹脂であり、接着剤層のTgが
50〜90℃であるから、転写時にパターン接着部のパター
ンが強調され、優れた意匠が得られる。また、装飾層に
光輝性層を設けた場合、転写箔に入射した光の反射が大
きくなり、パターン接着剤層の凹凸の差をより大きくみ
せるため、更に立体感のある意匠が得られる。As described above, the transfer foil of the present invention has a concavo-convex pattern formed on the base sheet side of the release layer, and has a pattern adhesive portion projecting outward from the transfer foil on the adhesive layer. By adopting the configuration, the transfer layer after transfer to the object to be transferred has a convex part in the pattern adhesive layer, and the pattern adhesive The part where the layer is not formed is formed in a concave shape, and the unevenness is expressed on the decorative layer, and combined with the uneven pattern formed on the release layer, a three-dimensional effect not obtained conventionally can be obtained, and the surface appearance rich in design is covered. This has the effect of obtaining a transfer foil that can be applied to the surface of the transfer body. Further, in the transfer foil, when the adhesive layer is formed from the entire solid adhesive portion and the pattern adhesive portion provided on the entire solid adhesive portion, the adhesive layer of the transfer foil can be easily formed. it can. The transfer foil of the present invention
In the pattern adhesive, the resin constituting the adhesive has no
Machine filler is added at 1-10% by weight or
Adhesive part compared to resin that forms solid adhesive part on the entire surface
It is a resin with a high Tg of about 10 to 50 ° C, and the Tg of the adhesive layer is
Since the temperature is 50-90 ° C, the pattern adhesion
Is emphasized, and an excellent design is obtained. In addition, when the glitter layer is provided on the decoration layer, the reflection of the light incident on the transfer foil increases, and the difference in the unevenness of the pattern adhesive layer is made larger, so that a design with a more three-dimensional appearance can be obtained.
【図１】本発明転写箔の１例を示す部分縦断面図。FIG. 1 is a partial longitudinal sectional view showing one example of a transfer foil of the present invention.
【図２】本発明転写箔を用いて転写を行う際の説明図で
ある。FIG. 2 is an explanatory diagram when transferring is performed using the transfer foil of the present invention.
【図３】本発明転写箔の基材シートに凹凸模様を形成す
る場合の製造工程の一部を示す説明図である。FIG. 3 is an explanatory view showing a part of a manufacturing process when an uneven pattern is formed on a substrate sheet of the transfer foil of the present invention.
１ 転写箔 ２ 基材シート ３ 剥離層 ４ 装飾層 ５ 接着剤層 ７ 凹凸模様 ８ 全面ベタ接着剤部 ９ パターン接着剤部 REFERENCE SIGNS LIST 1 transfer foil 2 base sheet 3 release layer 4 decoration layer 5 adhesive layer 7 uneven pattern 8 solid adhesive section 9 pattern adhesive section
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B41M 3/12 B44C 1/165 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) B41M 3/12 B44C 1/165
Claims (2)
層、接着剤層を順次積層してなる転写箔において、基材
シートには凹凸模様が形成され、剥離層の基材シート側
に基材シートの凹凸模様によって賦型された凹凸模様が
形成され、上記接着剤層が全面ベタ接着剤部と該全面ベ
タ接着剤部の上に設けたパターン接着剤部とから形成さ
れ、パターン接着剤部が全面ベタ接着剤部を形成する樹
脂と比較して10〜50℃程度Tgの高い樹脂であり、接着剤
層のTgが50〜90℃であることを特徴とする転写箔。1. A transfer foil in which a release layer, a decorative layer, and an adhesive layer are sequentially laminated on the surface of a peelable base material sheet, wherein the base material sheet has an uneven pattern, and the release layer has a concave-convex pattern. An uneven pattern shaped by the uneven pattern of the base sheet is formed on the base sheet, and the adhesive layer is formed from a solid adhesive portion on the entire surface and a pattern adhesive portion provided on the solid adhesive portion on the entire surface, and the pattern is formed. A transfer foil characterized in that the adhesive portion is a resin having a higher Tg of about 10 to 50 ° C than the resin forming the solid adhesive section on the entire surface, and the Tg of the adhesive layer is 50 to 90 ° C.
の転写箔。2. A transfer foil as claimed in claim 1, wherein <br/> with glitter layer decorative layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06270091A JP3337479B2 (en) | 1991-03-04 | 1991-03-04 | Transfer foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06270091A JP3337479B2 (en) | 1991-03-04 | 1991-03-04 | Transfer foil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04276484A JPH04276484A (en) | 1992-10-01 |
| JP3337479B2 true JP3337479B2 (en) | 2002-10-21 |
Family
ID=13207843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06270091A Expired - Fee Related JP3337479B2 (en) | 1991-03-04 | 1991-03-04 | Transfer foil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3337479B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06239009A (en) * | 1993-01-27 | 1994-08-30 | Reiko Co Ltd | Transfer material for stereoscopic pattern |
-
1991
- 1991-03-04 JP JP06270091A patent/JP3337479B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04276484A (en) | 1992-10-01 |
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