JP2017056634A - Printed matter and container using the printed matter - Google Patents

Printed matter and container using the printed matter Download PDF

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JP2017056634A
JP2017056634A JP2015183275A JP2015183275A JP2017056634A JP 2017056634 A JP2017056634 A JP 2017056634A JP 2015183275 A JP2015183275 A JP 2015183275A JP 2015183275 A JP2015183275 A JP 2015183275A JP 2017056634 A JP2017056634 A JP 2017056634A
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metal film
layer
printed
printed matter
substrate
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JP6520600B2 (en
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隆光 清水
Takamitsu Shimizu
隆光 清水
智隆 吉川
Tomotaka Yoshikawa
智隆 吉川
優 市瀬
Masaru Ichise
優 市瀬
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a printed matter and a container having high metallic glossiness and excellent designing property.SOLUTION: The printed matter has a printed layer on a substrate, in which an arithmetic average roughness Ra of the surface of the substrate, specified by JIS B0601:2001 with a cut-off value of 0.8 mm, is 0.3 to 5.0 μm. The printed matter has a metal film on the printed layer; and the metal film shows a total ray transmittance, specified by JIS K7361-1:1997, of 20 to 80%.SELECTED DRAWING: Figure 1

Description

本発明は、印刷物、及び該印刷物を用いた容器に関する。   The present invention relates to a printed matter and a container using the printed matter.

従来から、各種の印刷物では、その意匠性を向上させるために、金属光沢を付与することが求められる場合がある。   Conventionally, various printed materials may be required to have a metallic luster in order to improve their design properties.

例えば、特許文献1には、紙基材上に、結着樹脂及び金属薄膜細片を含む金属光沢領域層を有する印刷層を形成してなる紙容器が開示されている。
特許文献1の紙容器は、一定レベルの金属光沢を有するものの、印刷により金属光沢を付与するものであるため、高レベルの金属光沢を有するものではなかった。ここで、金属光沢を表現するものとしての「金属光沢感」は、観る角度によって反射強度の急変する度合いによって表現される。
For example, Patent Document 1 discloses a paper container in which a printed layer having a metallic gloss region layer including a binder resin and metal thin film strips is formed on a paper base material.
Although the paper container of Patent Document 1 has a certain level of metallic luster, the paper container imparts metallic luster by printing and thus does not have a high level of metallic luster. Here, the “metallic luster” that expresses the metallic luster is represented by the degree of sudden change in reflection intensity depending on the viewing angle.

一方、高レベルの金属光沢を付与するために、基材上に金属蒸着膜が形成された転写箔を用い、転写箔から印刷物上に金属蒸着膜を転写する手段(いわゆる「箔押し」)も行われている。   On the other hand, in order to give a high level of metallic luster, a transfer foil having a metal vapor deposition film formed on a substrate is used, and means for transferring the metal vapor deposition film from the transfer foil onto the printed material (so-called “foil pressing”) is also provided. It has been broken.

特開2003−2322号公報JP 2003-2322 A

箔押しは、金属蒸着膜を用いるため、高レベルの金属光沢を付与することができる。
しかし、箔押しにより形成した金属蒸着膜は下地の絵柄を完全に隠蔽してしまうため、下地の絵柄と金属蒸着膜とは互いに独立した関係となり、意匠性を十分に高めることができなかった。
Since foil stamping uses a metal vapor deposition film, a high level of metallic luster can be imparted.
However, since the metal vapor deposition film formed by stamping completely hides the underlying pattern, the underlying pattern and the metal vapor deposition film are independent of each other, and the design properties cannot be sufficiently improved.

本発明は、高い金属光沢を有し、意匠性に優れる印刷物及び容器を提供することを目的とする。   An object of this invention is to provide the printed matter and container which have high metallic luster and are excellent in design property.

上記課題を解決するために本発明者らは、まず、ハーフミラー等で用いられている光透過性を有する金属膜について検討を行った。印刷物上に光透過性を有する金属膜を転写した場合、該金属膜を通して下地の印刷を見ることが可能であり、意匠性は向上する。しかし、金属光沢感にムラがあり、意匠性が十分ではなかった。
本発明者らはさらに鋭意研究した結果、光透過性を有する金属膜は厚みが薄いため、僅かな厚みムラでも視認性への影響があり、そのため金属光沢感にムラが生じていることを見出した。そして、基材に所定の粗さを付与することにより、金属膜の厚みムラに基づく金属光沢感のムラを解消し得ることを見出し、本発明を完成するに至った。
In order to solve the above-mentioned problems, the present inventors first examined a light-transmitting metal film used in a half mirror or the like. When a light-transmitting metal film is transferred onto the printed material, it is possible to see the underlying printing through the metal film, and the design is improved. However, the metallic luster was uneven and the design was not sufficient.
As a result of further diligent research, the present inventors have found that a light-transmitting metal film has a small thickness, so even a slight thickness unevenness has an effect on visibility, and therefore, a metal glossiness is uneven. It was. And it discovered that the unevenness of the metallic luster based on the unevenness of the thickness of the metal film could be eliminated by giving the substrate a predetermined roughness, and the present invention was completed.

すなわち、本発明は、以下の[1]〜[6]の印刷物及び容器を提供する。
[1]基材上に印刷層を有する印刷物であって、該基材の表面は、カットオフ値0.8mmのJIS B0601:2001の算術平均粗さRaが0.3〜5.0μmであり、該印刷層上に、JIS K7361−1:1997の全光線透過率が20〜80%である金属膜を有する印刷物。
[2]該基材の表面は、カットオフ値0.8mmのJIS B0601:2001の粗さ曲線の最大山高さRpが10.0μm以下である上記[1]に記載の印刷物。
[3]前記印刷層は、L表色系の反射光のL値が異なる二以上の領域を有し、隣接する領域のうちの少なくとも一組はL値の差が5以上であり、該L値の差が5以上の一組の隣接する領域上に前記金属膜を有する上記[1]又は[2]に記載の印刷物。
[4]前記金属膜により絵柄が形成されてなる上記[1]〜[3]の何れかに記載の印刷物。
[5]前記基材が紙基材である上記[1]〜[4]の何れかに記載の印刷物。
[6]上記[1]〜[5]の何れかに記載の印刷物を用いて作製された容器。
That is, the present invention provides the following printed materials and containers [1] to [6].
[1] A printed matter having a printed layer on a substrate, and the surface of the substrate has an arithmetic average roughness Ra of 0.3 to 5.0 μm according to JIS B0601: 2001 having a cutoff value of 0.8 mm. A printed matter having a metal film having a total light transmittance of 20 to 80% according to JIS K7361-1: 1997 on the printed layer.
[2] The printed material according to [1], wherein the surface of the base material has a maximum peak height Rp of 10.0 μm or less in a roughness curve of JIS B0601: 2001 having a cutoff value of 0.8 mm.
[3] The printed layer has two or more regions having different L * values of reflected light of the L * a * b * color system, and at least one of adjacent regions has a difference in L * value. The printed matter according to the above [1] or [2], which is 5 or more and has the metal film on a set of adjacent regions having a difference in L * value of 5 or more.
[4] The printed material according to any one of [1] to [3], wherein a pattern is formed by the metal film.
[5] The printed material according to any one of [1] to [4], wherein the substrate is a paper substrate.
[6] A container produced using the printed material according to any one of [1] to [5].

本発明の印刷物及び容器は、金属膜を通して下地の印刷を視認することができるとともに、金属光沢感にムラがなく、高い金属光沢を有することから、意匠性に極めて優れる。   The printed matter and the container of the present invention are extremely excellent in design because they can visually recognize the printing on the base through the metal film, have no unevenness in the metallic luster, and have a high metallic luster.

本発明の印刷物の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of the printed matter of this invention.

[印刷物]
本発明の印刷物は、基材上に印刷層を有する印刷物であって、該基材の表面は、カットオフ値0.8mmのJIS B0601:2001の算術平均粗さRaが0.3〜5.0μmであり、該印刷層上に、JIS K7361−1:1997の全光線透過率が20〜80%である金属膜を有するものである。
以下、本発明の印刷物の実施の形態について説明する。
[Printed matter]
The printed matter of the present invention is a printed matter having a printed layer on a base material, and the surface of the base material has an arithmetic average roughness Ra of JIS B0601: 2001 having a cutoff value of 0.8 mm of 0.3 to 5. It has a metal film having a total light transmittance of 20 to 80% according to JIS K7361-1: 1997 on the printed layer.
Hereinafter, embodiments of the printed matter of the present invention will be described.

図1は、本発明の印刷物100の一実施形態を示す断面図である。図1の印刷物100は、基材10上に、印刷層21,22,23,24,25、金属膜40をこの順に有している。また、図1の印刷物100は、印刷層と金属膜との間に接着剤層30を有している。
なお、図1の印刷物100は基材10上の一部に印刷層を有しているが、基材の全面に印刷層を有していてもよい。また、図1の印刷物100は、印刷層上のみに金属膜40を有しているが、印刷層を有さない箇所に金属膜40を有していてもよい。
FIG. 1 is a cross-sectional view showing an embodiment of a printed matter 100 of the present invention. The printed matter 100 in FIG. 1 has printed layers 21, 22, 23, 24, 25 and a metal film 40 in this order on the substrate 10. 1 has an adhesive layer 30 between the printed layer and the metal film.
In addition, although the printed matter 100 of FIG. 1 has a printing layer in part on the base material 10, you may have a printing layer in the whole surface of a base material. Moreover, although the printed matter 100 of FIG. 1 has the metal film 40 only on the printing layer, the printed film 100 may have the metal film 40 in a place not having the printing layer.

基材
基材は、基材表面のカットオフ値0.8mmのJIS B0601:2001の算術平均粗さRaが0.3〜5.0μmのものを用いる。
基材表面のRaを0.3〜5.0μmとすることにより、基材表面の粗さが印刷層を介して金属膜の表面に反映され、金属膜の表面が適度に凹凸化され、金属光沢感を維持しつつ、金属光沢感のムラを解消することができる。
一方、基材表面のRaが0.3μm未満の場合、金属膜の厚みムラに基づく金属光沢感のムラを解消することが困難となる。また、基材表面のRaが5.0μmを超える場合、反射光が広い角度に拡散して、金属光沢感が低下してしまう。
基材表面のRaは、0.4〜4.0μmであることが好ましく、1.0〜4.0μmであることがより好ましい。
なお、基材として平滑な基材を用い、印刷層を形成するインキにマット剤を含有させることにより、金属膜の表面を凹凸化することも考えられる。しかし、該構成ではマット剤により形成された凹凸が十分に緩和されることなく金属膜に反映される場合があり、その結果、金属膜の表面が過度に凹凸化され、金属光沢感が低下したり、凹凸感が目立ちすぎたりするため好ましくない。
Base material The base material has an arithmetic average roughness Ra of 0.3 to 5.0 μm according to JIS B0601: 2001 having a cutoff value of 0.8 mm on the surface of the base material.
By setting the Ra of the substrate surface to 0.3 to 5.0 μm, the roughness of the substrate surface is reflected on the surface of the metal film through the printed layer, and the surface of the metal film is appropriately uneven, and the metal It is possible to eliminate unevenness of the metallic gloss while maintaining the gloss.
On the other hand, when Ra on the surface of the substrate is less than 0.3 μm, it is difficult to eliminate unevenness in the metallic luster based on unevenness in the thickness of the metal film. On the other hand, when Ra on the surface of the substrate exceeds 5.0 μm, the reflected light diffuses at a wide angle and the metallic gloss is lowered.
Ra of the substrate surface is preferably 0.4 to 4.0 μm, and more preferably 1.0 to 4.0 μm.
It is also conceivable to make the surface of the metal film uneven by using a smooth base material as a base material and adding a matting agent to the ink forming the print layer. However, in this configuration, the unevenness formed by the matting agent may be reflected in the metal film without being sufficiently relaxed, and as a result, the surface of the metal film is excessively uneven, and the metallic luster is lowered. Or the unevenness is too conspicuous.

基材は、基材表面のRaが上記範囲を満たすものであれば特に限定されない。基材の材料は、例えば、上質紙、中質紙、コート紙、合成紙、含浸紙、ラミネート紙、印刷用塗布紙、記録用塗布紙等の紙、ポリエチレンテレフタレートフィルム、ポリエチレンフィルム、ポリプロピレンフィルム、ポリカーボネートフィルム等のプラスチックフィルム、あるいはこれらの複合体等が用いられる。
基材は、紙、プラスチックフィルムあるいはこれらの複合体等の基体に対して、サンドブラスト、ケミカルエッチング等の物理的処理や化学的処理を施すことによって、表面のRaを上記範囲に調整したものでもよい。また、基材は、紙、プラスチックフィルムあるいはこれらの複合体等の基体に対して、プライマー層を形成することによって、表面のRaを上記範囲に調整したものでもよい。
The substrate is not particularly limited as long as Ra on the substrate surface satisfies the above range. The material of the base material is, for example, high-quality paper, medium-quality paper, coated paper, synthetic paper, impregnated paper, laminated paper, printing coated paper, paper for recording, etc., polyethylene terephthalate film, polyethylene film, polypropylene film, A plastic film such as a polycarbonate film, or a composite of these is used.
The substrate may have a surface Ra adjusted to the above range by subjecting a substrate such as paper, plastic film, or a composite thereof to physical or chemical treatment such as sandblasting or chemical etching. . In addition, the substrate may be a substrate whose surface Ra is adjusted to the above range by forming a primer layer on a substrate such as paper, plastic film or a composite thereof.

基材の表面は、カットオフ値0.8mmのJIS B0601:2001の粗さ曲線の最大山高さRpが10.0μm以下であることが好ましく、8.0μm以下であることがより好ましく、1.0μm以上7.0μm以下であることがさらに好ましい。
基材表面のRpが10.0μm以下であることは、基材表面に極端に高い凸部がなく、基材表面の粗さが平均化されていることを意味する。このため、基材表面のRpを10.0μm以下とすることにより、金属光沢感のムラをより解消しやすくできる。
As for the surface of a base material, it is preferable that the maximum peak height Rp of the roughness curve of JIS B0601: 2001 with a cutoff value of 0.8 mm is 10.0 micrometers or less, It is more preferable that it is 8.0 micrometers or less. More preferably, it is 0 μm or more and 7.0 μm or less.
That the Rp of the substrate surface is 10.0 μm or less means that there is no extremely high convex portion on the substrate surface, and the roughness of the substrate surface is averaged. For this reason, by setting the Rp of the substrate surface to 10.0 μm or less, it is possible to more easily eliminate the unevenness of the metallic gloss.

基材の厚みは特に限定されないが、紙基材の場合は、通常は坪量150〜550g/m程度であり、プラスチックフィルム基材の場合は、通常は9〜50μm程度である。 The thickness of the substrate is not particularly limited, but in the case of a paper substrate, the basis weight is usually about 150 to 550 g / m 2 , and in the case of a plastic film substrate, it is usually about 9 to 50 μm.

印刷層
印刷層は、印刷物の意匠性を高めることを目的として、基材上の任意の箇所に形成される。
印刷層は、通常の黄色、赤色、青色、および黒色のプロセスカラーによる多色印刷によって形成できる他、印刷パターンを構成する個々の色の版を用意して行う特色による多色印刷等によっても形成できる。
印刷層のパターンは、通常の印刷で用いられるパターン(例えば、文字、数字、図形、記号、風景、人物、動物、キャラクター等)であれば、特に制限されることなく使用できる。
Print layer A print layer is formed in the arbitrary places on a substrate for the purpose of improving the design nature of printed matter.
The printing layer can be formed by multicolor printing with normal yellow, red, blue, and black process colors, or by multicolor printing with special colors that are prepared by preparing individual color plates that make up the printing pattern. it can.
The pattern of the printing layer can be used without particular limitation as long as it is a pattern (for example, characters, numbers, figures, symbols, landscapes, people, animals, characters, etc.) used in normal printing.

印刷層の形成に用いられるインキとしては、バインダー樹脂に顔料、染料等の着色剤、体質顔料、溶剤、安定剤、可塑剤、触媒、硬化剤等を適宜混合したものが使用される。
バインダー樹脂としては特に制限はなく、例えば、アクリル系樹脂、スチレン系樹脂、ポリエステル系樹脂、ウレタン系樹脂、塩素化ポリオレフィン系樹脂、塩化ビニル−酢酸ビニル共重合体系樹脂、ポリビニルブチラール樹脂、アルキド系樹脂、石油系樹脂、ケトン樹脂、エポキシ系樹脂、メラミン系樹脂、フッ素系樹脂、シリコーン系樹脂、繊維素誘導体、ゴム系樹脂等が挙げられる。これらの樹脂は、単独又は2種以上を混合して使用できる。
印刷層中には、本発明の効果を阻害しない範囲で、酸化防止剤、紫外線吸収剤等の添加剤を含有しても良い。
As the ink used for forming the printing layer, an ink obtained by appropriately mixing a binder resin with a colorant such as a pigment or dye, an extender pigment, a solvent, a stabilizer, a plasticizer, a catalyst, or a curing agent is used.
The binder resin is not particularly limited. For example, acrylic resin, styrene resin, polyester resin, urethane resin, chlorinated polyolefin resin, vinyl chloride-vinyl acetate copolymer resin, polyvinyl butyral resin, alkyd resin. , Petroleum resins, ketone resins, epoxy resins, melamine resins, fluorine resins, silicone resins, fiber derivatives, rubber resins, and the like. These resins can be used alone or in admixture of two or more.
The printing layer may contain additives such as an antioxidant and an ultraviolet absorber as long as the effects of the present invention are not impaired.

印刷層の厚みは、基材の色味の隠蔽、及び基材表面の凹凸を適度に緩和する観点から、0.5〜10.0μmであることが好ましく、0.7〜5.0μmであることがより好ましい。
印刷層の形成手段は、オフセット印刷、インクジェット印刷、グラビア印刷等の印刷手段から、実施形態に合うものを適宜選択して行えばよい。
The thickness of the printing layer is preferably from 0.5 to 10.0 μm, and preferably from 0.7 to 5.0 μm, from the viewpoint of concealing the color tone of the substrate and moderately unevenness of the substrate surface. It is more preferable.
The printing layer forming means may be appropriately selected from printing means such as offset printing, ink jet printing, gravure printing and the like according to the embodiment.

接着剤層
印刷層と金属膜との間、あるいは後述する中間層と金属膜との間には、金属膜の密着性を向上するために接着剤層を有することが好ましい。
接着剤層を構成する接着剤は、汎用のホットメルト型接着剤(感熱型接着剤)、感圧型接着剤、硬化型接着剤等が挙げられる。接着剤層は、透明性の高い樹脂から形成することが好ましい。
Adhesive layer It is preferable to have an adhesive layer between the printed layer and the metal film, or between an intermediate layer and a metal film, which will be described later, in order to improve the adhesion of the metal film.
Examples of the adhesive constituting the adhesive layer include general-purpose hot-melt adhesives (heat-sensitive adhesives), pressure-sensitive adhesives, and curable adhesives. The adhesive layer is preferably formed from a highly transparent resin.

接着剤層の厚みは、金属膜の密着性を向上する観点、及び基材表面の粗さを適度に金属膜に反映させる観点から、0.5〜3.0μmであることが好ましく、1.0〜2.5μmであることがより好ましい。
接着剤層は、例えば、後述する転写箔を用いて印刷層上に転写して形成することができる。
The thickness of the adhesive layer is preferably 0.5 to 3.0 μm from the viewpoint of improving the adhesion of the metal film and reflecting the roughness of the substrate surface to the metal film appropriately. It is more preferable that it is 0-2.5 micrometers.
The adhesive layer can be formed by, for example, transferring onto the printing layer using a transfer foil described later.

中間層
印刷層と金属膜との間、あるいは印刷層と接着剤層との間には、金属膜の密着性を向上することなどを目的として、中間層を有していてもよい。中間層は、透明性の高い樹脂から形成することが好ましい。
Intermediate layer An intermediate layer may be provided between the printed layer and the metal film or between the printed layer and the adhesive layer for the purpose of improving the adhesion of the metal film. The intermediate layer is preferably formed from a highly transparent resin.

金属膜
印刷層は、印刷物の意匠性を高めることを目的として、印刷層上の任意の箇所に形成される。図1の印刷物は、印刷層21〜25のうち、印刷層21〜24上に金属膜40を有している。また、図1の印刷物は、金属膜40と、印刷層との間に、金属膜の密着性を向上させるために接着剤層30を有している。
金属膜は、印刷層を有さない箇所に形成されていてもよい。また、金属膜によりパターンを形成しても良い。
Metal film A printing layer is formed in the arbitrary places on a printing layer for the purpose of improving the designability of printed matter. The printed matter in FIG. 1 has a metal film 40 on the print layers 21 to 24 among the print layers 21 to 25. The printed matter in FIG. 1 has an adhesive layer 30 between the metal film 40 and the print layer in order to improve the adhesion of the metal film.
The metal film may be formed at a location that does not have a printed layer. Moreover, you may form a pattern with a metal film.

本発明では、金属膜として、JIS K7361−1:1997の全光線透過率が20〜80%である金属膜を用いる。
金属膜の全光線透過率が20%未満の場合、印刷層のパターンを透かして見ることが困難となり、意匠性を良好にすることができない。また、金属膜の全光線透過率が80%を超える場合、金属膜の反射率が低下して金属光沢感が低下してしまう。
金属膜の全光線透過率は、30〜60%であることが好ましく、40〜55%であることがより好ましい。
なお、本発明において、金属膜の全光線透過率は、下記サンプルの20箇所で全光線透過率を測定した際の平均値とする。
(サンプル)
厚み1mmのソーダ石灰ガラス(屈折率1.51)上に、厚み1.5μmの接着剤層(屈折率1.51)を介して金属膜を形成したもの。
In the present invention, a metal film having a total light transmittance of 20 to 80% according to JIS K7361-1: 1997 is used as the metal film.
When the total light transmittance of the metal film is less than 20%, it becomes difficult to see through the pattern of the printed layer, and the design property cannot be improved. Moreover, when the total light transmittance of a metal film exceeds 80%, the reflectance of a metal film will fall and metal glossiness will fall.
The total light transmittance of the metal film is preferably 30 to 60%, and more preferably 40 to 55%.
In addition, in this invention, let the total light transmittance of a metal film be an average value at the time of measuring total light transmittance in 20 places of the following sample.
(sample)
A metal film formed on a 1 mm thick soda-lime glass (refractive index 1.51) via an adhesive layer (refractive index 1.51) having a thickness of 1.5 μm.

全光線透過率が20〜80%の金属膜は、光透過性を有するため厚みが薄い。そして、厚みが薄い金属膜は、僅かな厚みムラがあっても、該厚みムラを原因として、金属光沢感にムラを生じさせてしまう。また、厚みムラが全くない金属膜を作製することは困難である。本発明では、厚みムラを有することを前提とする全光線透過率が20〜80%の金属膜を用いても、上述したRaが所定範囲の基材を用いることにより、金属光沢感のムラを解消することができる。   A metal film having a total light transmittance of 20 to 80% is thin because it has light transmittance. And even if there is slight thickness unevenness, a thin metal film causes unevenness in the metallic luster due to the thickness unevenness. Moreover, it is difficult to produce a metal film having no thickness unevenness. In the present invention, even when a metal film having a total light transmittance of 20 to 80% on the premise of having unevenness in thickness is used, the above-described Ra is used in a predetermined range, so that unevenness in metallic luster can be achieved. Can be resolved.

上述した厚みムラは、例えば、金属膜の全光線透過率の標準偏差で表すことができる。具体的には、金属膜の任意の20箇所のJIS K7361−1:1997の全光線透過率の標準偏差は、通常0.02〜0.10%程度である。   The thickness unevenness described above can be expressed by, for example, the standard deviation of the total light transmittance of the metal film. Specifically, the standard deviation of the total light transmittance of JIS K7361-1: 1997 at any 20 locations on the metal film is usually about 0.02 to 0.10%.

金属膜は、アルミニウム、銀、金、ニッケル、銅、クロム等の金属の一種又は二種以上から形成される。これらの中でも、色味が少ないアルミニウム、銀、ニッケルが好ましく、特にアルミニウムがより好ましい。   The metal film is formed of one or more metals such as aluminum, silver, gold, nickel, copper, and chromium. Among these, aluminum, silver, and nickel having a small color are preferable, and aluminum is more preferable.

金属膜は、例えば、転写箔の金属膜を印刷層上に転写することにより形成することができる。
転写箔は、例えば、ベースフィルム上に、離型層、金属膜及び接着剤層を有する構成からなる。
The metal film can be formed, for example, by transferring the metal film of the transfer foil onto the printing layer.
Transfer foil consists of a structure which has a mold release layer, a metal film, and an adhesive bond layer on a base film, for example.

ベースフィルムは汎用のプラスチックフィルムを用いることができる。ベースフィルムの厚みは5〜30μm程度である。   A general-purpose plastic film can be used as the base film. The thickness of the base film is about 5 to 30 μm.

離型層は、転写時にベースフィルムに残っても良いし、金属膜及び接着剤層とともに印刷物側に転写されても良い。
転写時にベースフィルムに残る離型層は、離型効果のみを発揮し、シリコーン系離型剤、オレフィン系離型剤等の汎用の離型剤から形成することができる。
転写時に印刷物側に転写される離型層は、転写後は金属膜上に位置し、金属膜を保護する保護層としての機能を有する。かかる保護機能を有する離型層(保護層)は、硬化型の樹脂の硬化物、あるいは金属酸化物膜であることが好ましい。硬化型の樹脂としては、汎用の熱硬化型樹脂、電離放射線硬化型樹脂を用いることができる。金属酸化物膜としては、シリカ、アルミナ等の透明金属酸化物膜が挙げられる。
離型層の厚みは、離型層のタイプにより異なるため一概にはいえない。転写時にベースフィルムに残る離型層の場合、厚みは特に限定されないが、通常0.1〜1.0μm程度である。転写時に印刷物側に転写される離型層(保護層)の場合、金属膜を保護する観点、及び金属膜表面の粗さを離型層(保護層)上でも維持する観点から、0.02〜1.0μmであることが好ましく、0.03〜0.5μmであることがより好ましい。
The release layer may remain on the base film at the time of transfer, or may be transferred to the printed material side together with the metal film and the adhesive layer.
The release layer remaining on the base film at the time of transfer exhibits only a release effect and can be formed from a general-purpose release agent such as a silicone release agent or an olefin release agent.
The release layer transferred to the printed material side at the time of transfer is located on the metal film after the transfer, and has a function as a protective layer for protecting the metal film. The release layer (protective layer) having such a protective function is preferably a cured product of a curable resin or a metal oxide film. As the curable resin, a general-purpose thermosetting resin or ionizing radiation curable resin can be used. Examples of the metal oxide film include transparent metal oxide films such as silica and alumina.
Since the thickness of the release layer varies depending on the type of the release layer, it cannot be said unconditionally. In the case of the release layer remaining on the base film at the time of transfer, the thickness is not particularly limited, but is usually about 0.1 to 1.0 μm. In the case of a release layer (protective layer) transferred to the printed material side at the time of transfer, from the viewpoint of protecting the metal film and maintaining the roughness of the metal film surface also on the release layer (protective layer), 0.02 It is preferable that it is -1.0 micrometer, and it is more preferable that it is 0.03-0.5 micrometer.

転写箔の接着剤層は、上述した接着剤層と同様の構成が挙げられる。接着剤層を構成する接着剤がホットメルト型接着剤の場合、金属膜等は熱転写方式で転写できる。また、接着剤層を構成する接着剤が感圧型接着剤の場合、金属膜等はコールド転写法式で転写できる。   The adhesive foil of the transfer foil has the same configuration as the adhesive layer described above. When the adhesive constituting the adhesive layer is a hot melt adhesive, the metal film or the like can be transferred by a thermal transfer method. When the adhesive constituting the adhesive layer is a pressure sensitive adhesive, the metal film or the like can be transferred by a cold transfer method.

金属膜上には、本発明の効果を阻害しない範囲で、着色層等の機能層を有していてもよい。   On the metal film, you may have functional layers, such as a colored layer, in the range which does not inhibit the effect of this invention.

意匠性をより高めるための実施形態
本発明の印刷物は、金属膜を通して下地の印刷を視認することができるとともに、金属光沢感にムラがなく、高い金属光沢を有することから、意匠性に極めて優れるものであるが、以下の実施形態を採用することにより、意匠性をより高めることができる。
Embodiment for Improving Designability The printed matter of the present invention can be visually recognized through the metal film, has no unevenness in the metallic luster, and has a high metallic luster. Although it is what, the designability can be improved more by employ | adopting the following embodiment.

本発明の印刷物は、印刷層がL表色系の反射光のL値の異なる二以上の領域を有し、隣接する領域のうちの少なくとも一組はL値の差が5以上であり、該L値の差が5以上の一組の隣接する領域上に上記金属膜を有することが好ましい。
値の差が5以上の一組の隣接する領域上に金属膜を有すると、反射率の違い等により金属光沢感のコントラストを得ることができ、意匠性をより高めることができる。
値の差は10以上がより好ましく、15以上がさらに好ましく、20以上がよりさらに好ましい。なお、L値の差の上限は特に限定されないが、通常90程度である。
値の差を5以上にするには、例えば、AM印刷の場合は、隣接する領域の網点の大きさ(網点面積率)を変更する手法、FM印刷の場合は、隣接する領域の網点の密度(網点密度率)を変更する手法、グラビア印刷等の非網点印刷の場合は、隣接する領域のインキ塗布量(乾燥後のインキ厚み)を変更する手法が挙げられる。また、L値の差を5以上にするには、インキの反射率が低いものを用いることが好ましい。
In the printed matter of the present invention, the printed layer has two or more regions having different L * values of reflected light of the L * a * b * color system, and at least one of the adjacent regions has a difference in L * value. Is 5 or more, and the difference in L * value is preferably 5 or more on a set of adjacent regions.
When a metal film is provided on a pair of adjacent regions having a difference in L * value of 5 or more, a contrast of metallic luster can be obtained due to a difference in reflectance, and the design can be further improved.
The difference in L * value is more preferably 10 or more, further preferably 15 or more, and still more preferably 20 or more. The upper limit of the L * value difference is not particularly limited, but is usually about 90.
In order to make the L * value difference 5 or more, for example, in the case of AM printing, a method of changing the size of halftone dots (halftone dot area ratio) in an adjacent area, and in the case of FM printing, an adjacent area. In the case of non-halftone printing such as gravure printing, a method of changing the ink application amount (ink thickness after drying) in an adjacent region is exemplified. Further, in order to make the difference in L * value 5 or more, it is preferable to use one having a low ink reflectance.

表色系の反射光のL値は、例えばD65光源を用いた積分球分光光度計で、アパーチャー径を8mmとして測定した反射光を元に算出できる。 L * a * b * L * value of the reflected light of the color system, for example, an integrating sphere spectrophotometer using a D65 light source can be calculated based on the reflected light of the measurement of the aperture diameter as 8 mm.

本発明において、隣接する領域とは、領域同士の最短距離が1cm以内の場合をいうものとする。つまり、隣接する領域とは、印刷層21及び印刷層22のように互いに接している領域同士を含む他、印刷層23及び印刷層24のように離間している場合も含む(但し、離間している場合は、隣り合う領域の最短距離が1cm以内)ものとする。   In the present invention, the adjacent region means a case where the shortest distance between the regions is within 1 cm. In other words, the adjacent region includes regions that are in contact with each other such as the printing layer 21 and the printing layer 22, and includes a case where they are separated like the printing layer 23 and the printing layer 24 (however, they are separated from each other). The shortest distance between adjacent regions is within 1 cm).

[容器]
本発明の容器は、上述した本発明の印刷物を用いてなるものである。
容器としては、特に制限されることなく、飲料容器、食品容器、薬品容器等が挙げられる。本発明の容器は、金属膜を通して下地の印刷を視認することができるとともに、金属光沢感にムラがなく、高い金属光沢を有することから、意匠性に極めて優れるものである。
[container]
The container of the present invention is formed using the above-described printed material of the present invention.
Examples of the container include, but are not limited to, a beverage container, a food container, and a chemical container. The container according to the present invention can be visually recognized through the metal film, has no unevenness in the metallic luster, and has a high metallic luster, so that the design is extremely excellent.

次に、本発明を実施例により、さらに詳細に説明するが、本発明は、この例によってなんら限定されるものではない。なお、以下、「部」は特に断りのない限り質量基準を意味する。   EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by this example. In the following, “part” means mass basis unless otherwise specified.

1.測定及び評価
実施例及び比較例で作製した印刷物及びその中間材料について、以下の測定及び評価を行った。結果を表1〜3に示す。
1−1.算術平均粗さRa
実施例及び比較例の印刷物の基材について、カットオフ値0.8mmのJIS B0601:2001の算術平均粗さRa、粗さ曲線の最大山高さRp、及び粗さ曲線のスキューネスRskを測定した。測定には小坂研究所株式会社製の商品名SE−340を用い、以下の測定条件とした。
[表面粗さ検出部の触針]
Mitutoyo社製の商品名SJ−210(先端曲率半径:2μm、頂角:60度、材質:ダイヤモンド)
[表面粗さ測定器の測定条件]
・評価長さ(基準長さ):カットオフ値λcの5倍
・触針の送り速さ:0.25mm/s
・予備長さ: (カットオフ値λc)×2
1. Measurement and Evaluation The following measurements and evaluations were performed on the printed materials and intermediate materials produced in the examples and comparative examples. The results are shown in Tables 1-3.
1-1. Arithmetic mean roughness Ra
The arithmetic average roughness Ra of JIS B0601: 2001 having a cutoff value of 0.8 mm, the maximum peak height Rp of the roughness curve, and the skewness Rsk of the roughness curve were measured for the printed materials of Examples and Comparative Examples. For measurement, trade name SE-340 manufactured by Kosaka Laboratory Ltd. was used, and the following measurement conditions were used.
[Surface probe for surface roughness detection]
Trade name SJ-210 manufactured by Mitutoyo Corporation (tip radius of curvature: 2 μm, apex angle: 60 degrees, material: diamond)
[Measurement conditions of surface roughness measuring instrument]
・ Evaluation length (reference length): 5 times the cutoff value λc ・ Feeding speed of stylus: 0.25 mm / s
・ Preliminary length: (cut-off value λc) × 2

1−2.全光線透過率
明細書本文の記載に従って、下記の転写箔A〜Fからサンプルを作製し、金属膜A〜Fの全光線透過率(JIS K7361−1:1997)を測定するとともに、金属膜A〜Fの全光線透過率の標準偏差を算出した。光入射面はサンプルのソーダ石灰ガラス側とした。
1-2. Total light transmittance According to the description of the specification, a sample is prepared from the following transfer foils A to F, and the total light transmittance of the metal films A to F (JIS K7361-1: 1997) is measured. The standard deviation of the total light transmittance of ~ F was calculated. The light incident surface was the soda-lime glass side of the sample.

1−3.L
基材上に印刷層を形成した状態の中間材料について、D65光源を用いた積分球分光光度計(X-Rite社製、商品名:gretagmacbeth SpectroEye)を用い、アパーチャー径を4.5mmとして、L表色系の反射光のL値を測定した。なお、測定時の視野角は2度として、測定波長範囲は380〜780nmとして、測定波長間隔は10nmとした。
1-3. L * value For an intermediate material in a state where a printed layer is formed on a base material, an integrating sphere spectrophotometer (X-Rite, trade name: gretagmacbeth SpectroEye) using a D65 light source is used, and the aperture diameter is 4.5 mm. As a result, the L * value of the reflected light of the L * a * b * color system was measured. The viewing angle at the time of measurement was 2 degrees, the measurement wavelength range was 380 to 780 nm, and the measurement wavelength interval was 10 nm.

1−4.下地の視認性
金属膜を通して下地の印刷層が暗さを感じることなく視認できるものを2点、金属膜を通して下地の印刷が多少の暗さを感じるが視認することができるもの1点、金属膜を通して下地の印刷層が暗くて視認することが困難なものを0点として、20人の被験者が評価を行い、平均点を算出した。平均点が1.7以上のものを「AA」、平均点が1.4以上1.7未満のものを「A」、平均点が1.0以上1.4未満のものを「B」、平均点が1.0未満のものを「C」とした。
1-4. Underlying visibility Two points where the printed layer of the underlying layer can be seen without feeling darkness through the metal film, one point where the printing of the underlying layer feels somewhat dark through the metallic film but can be seen, one point, the metallic film Through the test, 20 subjects evaluated the average printed score of 0, which was difficult to visually recognize because the underlying printed layer was dark. “AA” having an average score of 1.7 or more, “A” having an average score of 1.4 or more and less than 1.7, “B” having an average score of 1.0 or more and less than 1.4, A sample having an average score of less than 1.0 was designated as “C”.

1−5.金属光沢感
金属光沢を極めて強く感じるものを2点、金属光沢を強く感じるものを1点、金属光沢を強く感じないものを0点として、20人の被験者が評価を行い、平均点を算出した。平均点が1.7以上のものを「AA」、平均点が1.4以上1.7未満のものを「A」、平均点が1.0以上1.4未満のものを「B」、平均点が1.0未満のものを「C」とした。
1-5. Metal gloss feeling 20 subjects evaluated and averaged 2 points for those who felt extremely strong metallic luster, 1 point for those that felt strong metallic luster, and 0 points for those that did not feel strong metallic luster. . “AA” having an average score of 1.7 or more, “A” having an average score of 1.4 or more and less than 1.7, “B” having an average score of 1.0 or more and less than 1.4, A sample having an average score of less than 1.0 was designated as “C”.

1−6.金属光沢のムラ
金属光沢のムラを全く感じないものを2点、細部を注意深く観察すれば金属光沢にムラを感じる箇所が僅かにあるが、意匠性には影響を与えないものを1点、金属光沢のムラを十分に感じたものを0点として、20人の被験者が評価を行い、平均点を算出した。平均点が1.7以上のものを「AA」、平均点が1.4以上1.7未満のものを「A」、平均点が1.0以上1.4未満のものを「B」、平均点が1.0未満のものを「C」とした。
1-6. Unevenness of metallic luster 2 points that do not feel unevenness of metallic luster at all, and if you carefully observe the details, there are a few places where you feel unevenness in metallic luster, but 1 point that does not affect the design, metal Twenty subjects evaluated the average feeling of gloss unevenness as 0, and the average score was calculated. “AA” having an average score of 1.7 or more, “A” having an average score of 1.4 or more and less than 1.7, “B” having an average score of 1.0 or more and less than 1.4, A sample having an average score of less than 1.0 was designated as “C”.

1−7.意匠性の総合評価
下地の視認性、金属光沢感及び金属光沢のムラから、意匠性の総合評価を行った。評価AAを3点、評価Aを2点、評価Bを1点、評価Cを0点として、前記3つの項目の評価の合計点を算出した。合計点が9点のものを「AA」、8点のものを「A」、7点のものを「B」、6点以下のものを「C」とした。
1-7. Comprehensive evaluation of designability Comprehensive evaluation of designability was performed from the visibility of the groundwork, the metallic luster, and the unevenness of the metallic luster. The total score of the evaluations of the three items was calculated with an evaluation AA of 3 points, an evaluation A of 2 points, an evaluation B of 1 point, and an evaluation C of 0 points. A total of 9 points was designated as “AA”, 8 points as “A”, 7 points as “B”, and 6 points or less as “C”.

2.中間材料(転写箔)の作製
厚み12μmの透明ポリエチレンテレフタレートフィルムの片面上に、厚み0.3μmのオレフィン系樹脂からなる離型層を形成した。次いで、離型層上に、真空蒸着法によりアルミニウムからなる金属膜Aを形成した。次いで、金属膜上にホットメルト型接着剤層(アクリル系樹脂、屈折率1.51)を形成し、転写箔Aを形成した。また、真空蒸着の時間を変更した以外は、転写箔Aと同様にして、転写箔B〜Mを得た。
2. Production of Intermediate Material (Transfer Foil) A release layer made of an olefin resin having a thickness of 0.3 μm was formed on one surface of a transparent polyethylene terephthalate film having a thickness of 12 μm. Next, a metal film A made of aluminum was formed on the release layer by vacuum deposition. Next, a hot-melt adhesive layer (acrylic resin, refractive index 1.51) was formed on the metal film, and transfer foil A was formed. Also, transfer foils B to M were obtained in the same manner as the transfer foil A, except that the time of vacuum deposition was changed.

3.紙基材の準備
基材として、基材表面のRaが異なる白色コート紙A〜C、及び白色非コート紙D〜Iを準備した(坪量約270g/m)。
3. Preparation of paper substrate White coated papers A to C and white uncoated papers D to I having different Ra on the surface of the substrate were prepared (basis weight: about 270 g / m 2 ).

基材A〜IのRa及びRpを表1に示す。また、金属膜A〜Mの全光線透過率及び全光線透過率の標準偏差を表2に示す。
Table 1 shows Ra and Rp of the substrates A to I. Table 2 shows the total light transmittance of the metal films A to M and the standard deviation of the total light transmittance.

4.印刷物の作製
[実施例1]
基材F上に、墨インキを用いてオフセット印刷により厚み1μmの印刷層を形成した。次いで、印刷層上の一部に、転写箔Gの接着剤層及び金属膜Gを熱転写により転写して、印刷物を得た。
4). Production of printed matter [Example 1]
A printed layer having a thickness of 1 μm was formed on the substrate F by offset printing using black ink. Next, the adhesive layer of the transfer foil G and the metal film G were transferred to a part of the printed layer by thermal transfer to obtain a printed matter.

[実施例2〜17、比較例1〜4]
基材及び転写箔を表3記載のものに変更した以外は、実施例1と同様にして印刷物を得た。
[Examples 2 to 17, Comparative Examples 1 to 4]
A printed matter was obtained in the same manner as in Example 1 except that the base material and the transfer foil were changed to those shown in Table 3.

表3の結果から明らかなように、実施例1〜17の印刷物は、金属膜を通して下地の印刷を視認することができるとともに、金属光沢感にムラがなく、高い金属光沢を有し、意匠性に極めて優れるものであった。   As is clear from the results in Table 3, the printed materials of Examples 1 to 17 can visually recognize the underlying printing through the metal film, have no unevenness in the metallic luster, have a high metallic luster, and have a design property. It was extremely excellent.

5.印刷層を改良した印刷物の作製
[実施例18]
基材B上に、墨インキを用いてオフセット印刷により厚み1μmの印刷層を形成した。次いで、印刷層上に、転写箔Gの接着剤層及び金属膜Gを熱転写により転写して、印刷物を得た。
なお、印刷層は、網点面積率が異なる二つの領域(領域X、領域Y)が接するように形成した。また、金属膜Dは、領域X及び領域Yの両方の上に形成した。さらに、実施例18では、領域X及び領域Yの網点面積率を表4の組み合わせで変更し、隣接する領域のL値の差を上記手法により測定するとともに、金属光沢感のコントラストを以下の基準で評価した。
5. Preparation of printed matter with improved printed layer [Example 18]
On the base material B, a printing layer having a thickness of 1 μm was formed by offset printing using black ink. Next, the adhesive layer of the transfer foil G and the metal film G were transferred onto the printing layer by thermal transfer to obtain a printed matter.
The printing layer was formed so that two regions (region X and region Y) having different dot area ratios were in contact with each other. Further, the metal film D was formed on both the region X and the region Y. Further, in Example 18, the halftone dot area ratios of the region X and the region Y are changed by the combination of Table 4, the difference in L * value between adjacent regions is measured by the above method, and the contrast of the metallic gloss feeling is as follows. Evaluation based on the criteria.

<金属光沢感のコントラスト>
領域Xと領域Yとを目視で比較した際に、金属光沢感のコントラストが極めて明瞭なものを2点、金属光沢感のコントラストが明瞭なものを1点、金属光沢感のコントラストの区別がつきにくいものを0点として、20人の被験者が評価を行い、平均点を算出した。平均点が1.8以上のものを「AAA」、平均点が1.5以上1.8未満のものを「AA」、平均点が1.2以上1.5未満のものを「A」、平均点が1.0以上1.2未満のものを「B」、平均点が1.0未満のものを「C」とした。
<Contrast of metallic luster>
When comparing region X and region Y visually, there are two points where the contrast of the metallic luster is very clear, one point where the contrast of the metallic luster is clear, and the contrast of the metallic luster is distinguished. Twenty subjects evaluated the difficult score as 0 points, and the average score was calculated. “AAA” having an average score of 1.8 or more, “AA” having an average score of 1.5 to 1.8, and “A” having an average score of 1.2 to 1.5 Samples with an average score of 1.0 or more and less than 1.2 were designated as “B”, and those with an average score of less than 1.0 were designated as “C”.

[実施例19]
基材F上に、墨インキを用いてオフセット印刷により厚み1μmの印刷層を形成した。次いで、印刷層上に、転写箔Gの接着剤層及び金属膜Gを熱転写により転写して、印刷物を得た。
なお、印刷層は、網点面積率が異なる二つの領域(領域X、領域Y)が接するように形成した。また、金属膜Gは、領域X及び領域Yの両方の上に形成した。さらに、実施例19では、領域X及び領域Yの網点面積率を表5の組み合わせで変更し、金属光沢感のコントラストを上記基準で評価した。
[Example 19]
A printed layer having a thickness of 1 μm was formed on the substrate F by offset printing using black ink. Next, the adhesive layer of the transfer foil G and the metal film G were transferred onto the printing layer by thermal transfer to obtain a printed matter.
The printing layer was formed so that two regions (region X and region Y) having different dot area ratios were in contact with each other. Further, the metal film G was formed on both the region X and the region Y. Furthermore, in Example 19, the halftone dot area ratios of the region X and the region Y were changed according to the combinations shown in Table 5, and the contrast of the metallic gloss was evaluated based on the above criteria.

[実施例20]
基材B上に、藍インキを用いてオフセット印刷により厚み1μmの印刷層を形成した。次いで、印刷層上に、転写箔Gの接着剤層及び金属膜Gを熱転写により転写して、印刷物を得た。
なお、印刷層は、網点面積率が異なる二つの領域(領域X、領域Y)が接するように形成した。また、金属膜Gは、領域X及び領域Yの両方の上に形成した。さらに、実施例20では、領域X及び領域Yの網点面積率を表6の組み合わせで変更し、金属光沢感のコントラストを上記基準で評価した。
[Example 20]
On the base material B, a printing layer having a thickness of 1 μm was formed by offset printing using indigo ink. Next, the adhesive layer of the transfer foil G and the metal film G were transferred onto the printing layer by thermal transfer to obtain a printed matter.
The printing layer was formed so that two regions (region X and region Y) having different dot area ratios were in contact with each other. Further, the metal film G was formed on both the region X and the region Y. Furthermore, in Example 20, the halftone dot area ratios of the region X and the region Y were changed according to the combinations shown in Table 6, and the contrast of the metallic gloss was evaluated based on the above criteria.

[実施例21]
基材B上に、赤インキを用いてオフセット印刷により厚み1μmの印刷層を形成した。次いで、印刷層上に、転写箔Gの接着剤層及び金属膜Gを熱転写により転写して、印刷物を得た。
なお、印刷層は、網点面積率が異なる二つの領域(領域X、領域Y)が接するように形成した。また、金属膜Gは、領域X及び領域Yの両方の上に形成した。さらに、実施例21では、領域X及び領域Yの網点面積率を表7の組み合わせで変更し、金属光沢感のコントラストを上記基準で評価した。
[Example 21]
A printed layer having a thickness of 1 μm was formed on the substrate B by offset printing using red ink. Next, the adhesive layer of the transfer foil G and the metal film G were transferred onto the printing layer by thermal transfer to obtain a printed matter.
The printing layer was formed so that two regions (region X and region Y) having different dot area ratios were in contact with each other. Further, the metal film G was formed on both the region X and the region Y. Furthermore, in Example 21, the halftone dot area ratios of the region X and the region Y were changed by the combinations shown in Table 7, and the contrast of the metallic luster was evaluated according to the above criteria.

[実施例22]
基材B上に、黄インキを用いてオフセット印刷により厚み1μmの印刷層を形成した。次いで、印刷層上に、転写箔Gの接着剤層及び金属膜Gを熱転写により転写して、印刷物を得た。
なお、印刷層は、網点面積率が異なる二つの領域(領域X、領域Y)が接するように形成した。また、金属膜Gは、領域X及び領域Yの両方の上に形成した。さらに、実施例22では、領域X及び領域Yの網点面積率を表8の組み合わせで変更し、金属光沢感のコントラストを上記基準で評価した。
[Example 22]
On the base material B, a printing layer having a thickness of 1 μm was formed by offset printing using yellow ink. Next, the adhesive layer of the transfer foil G and the metal film G were transferred onto the printing layer by thermal transfer to obtain a printed matter.
The printing layer was formed so that two regions (region X and region Y) having different dot area ratios were in contact with each other. Further, the metal film G was formed on both the region X and the region Y. Furthermore, in Example 22, the halftone dot area ratios of the region X and the region Y were changed according to the combinations shown in Table 8, and the contrast of the metallic gloss was evaluated based on the above criteria.

表4〜表8の結果から、隣接する領域のL値の差が5以上である場合には、金属光沢感のコントラストを得ることができ、意匠性をより高めることができることが確認できた。さらに、表4〜表8の結果から、隣接する領域のL値の差が10以上15未満であると金属光沢感のコントラストをより良好にすることができ、該差が15以上20未満であると金属光沢感のコントラストをさらに良好にすることができ、該差が20以上であると金属光沢感のコントラストをよりさらに良好にできることを確認できた。
また、表4〜表8の結果から、反射率の低いインキ(墨インキ、藍インキ、赤インキ)では、隣接する領域のL値の差を5以上とすることが容易であり、金属光沢感のコントラストを得ることができたが、反射率の高いインキ(黄インキ)では、隣接する領域のL値の差を5以上とすることが困難であり、十分な金属光沢感のコントラストを得ることができなかった。このことより、印刷層に用いるインキとしては、L値の差の設定が容易であるという観点から、墨インキ、藍インキ及び赤インキ等の反射率の低いインキが好ましい。
From the results of Tables 4 to 8, it was confirmed that when the difference between the L * values of the adjacent regions is 5 or more, the contrast of the metallic luster can be obtained and the design can be further improved. . Furthermore, from the results of Tables 4 to 8, when the difference in L * value between adjacent regions is 10 or more and less than 15, the contrast of the metallic luster can be improved, and the difference is 15 or more and less than 20. It was confirmed that the contrast of the metallic luster feeling can be further improved when the difference is 20 and the contrast of the metallic luster feeling can be further improved when the difference is 20 or more.
In addition, from the results of Tables 4 to 8, it is easy to make the difference in L * value between adjacent regions 5 or more in inks with low reflectivity (black ink, indigo ink, red ink). In contrast, it is difficult to make the difference in L * value between adjacent regions 5 or more with an ink with high reflectance (yellow ink), and a sufficient contrast of metallic luster is obtained. Couldn't get. Accordingly, as the ink used for the printing layer, an ink having a low reflectance such as black ink, indigo ink, and red ink is preferable from the viewpoint that the difference in L * value can be easily set.

また、基材B〜H、金属膜B〜Lの全ての組み合わせの印刷物を実施例18と同様にして作製し、金属光沢感のコントラストを上記基準で評価したところ、いずれの印刷物においても、隣接する領域のL値の差と、金属光沢感のコントラストとの関係は、表4〜8と同等であった。 Further, printed materials of all combinations of the base materials B to H and the metal films B to L were prepared in the same manner as in Example 18, and the contrast of the metallic gloss was evaluated based on the above criteria. The relationship between the difference in the L * value of the region to be processed and the contrast of the metallic glossiness was equivalent to that in Tables 4-8.

本発明の印刷物及び容器は、金属膜を通して下地の印刷を視認することができるとともに、金属光沢感にムラがなく、高い金属光沢を有し、意匠性に極めて優れる点で有用である。   The printed matter and container of the present invention are useful in that the printing on the base can be visually recognized through the metal film, the metallic gloss feeling is uniform, the metallic gloss is high, and the design is extremely excellent.

10:基材
21,22,23,24,25:印刷層
30:接着剤層
40:金属膜
100:印刷物
10: base materials 21, 22, 23, 24, 25: printed layer 30: adhesive layer 40: metal film 100: printed matter

Claims (6)

基材上に印刷層を有する印刷物であって、該基材の表面は、カットオフ値0.8mmのJIS B0601:2001の算術平均粗さRaが0.3〜5.0μmであり、該印刷層上に、JIS K7361−1:1997の全光線透過率が20〜80%である金属膜を有する印刷物。   A printed matter having a printed layer on a substrate, the surface of the substrate having an arithmetic average roughness Ra of JIS B0601: 2001 having a cutoff value of 0.8 mm is 0.3 to 5.0 μm, and the printing A printed matter having a metal film having a total light transmittance of 20 to 80% according to JIS K7361-1: 1997 on the layer. 該基材の表面は、カットオフ値0.8mmのJIS B0601:2001の粗さ曲線の最大山高さRpが10.0μm以下である請求項1に記載の印刷物。   2. The printed material according to claim 1, wherein the surface of the base material has a maximum peak height Rp of 10.0 μm or less of a roughness curve of JIS B0601: 2001 having a cutoff value of 0.8 mm. 前記印刷層は、L表色系の反射光のL値が異なる二以上の領域を有し、隣接する領域のうちの少なくとも一組はL値の差が5以上であり、該L値の差が5以上の一組の隣接する領域上に前記金属膜を有する請求項1又は2に記載の印刷物。 The printed layer has two or more regions having different L * values of reflected light of the L * a * b * color system, and at least one of the adjacent regions has an L * value difference of 5 or more. The printed matter according to claim 1, wherein the metal film is provided on a set of adjacent regions having a difference in L * value of 5 or more. 前記金属膜により絵柄が形成されてなる請求項1〜3の何れか1項に記載の印刷物。   The printed matter according to claim 1, wherein a pattern is formed by the metal film. 前記基材が紙基材である請求項1〜4の何れか1項に記載の印刷物。   The printed material according to claim 1, wherein the substrate is a paper substrate. 請求項1〜5の何れか1項に記載の印刷物を用いて作製された容器。   The container produced using the printed matter of any one of Claims 1-5.
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JPH0931892A (en) * 1995-07-24 1997-02-04 Oji Paper Co Ltd Matte coated paper having tough and visual feeling of uncoated paper
WO1997032082A1 (en) * 1996-02-29 1997-09-04 Oji Paper Co., Ltd. Mat coated paper and method of manufacturing same
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