JP4347464B2 - Anti-counterfeit printed matter - Google Patents

Description

【００４５】
パターンの変化については、以下の４段階により評価を行った。
◎ ： 極めて明瞭にパターンの変化が認められ、目視角度によっ ては、パターンが消失して観察された。
○ ： 明瞭にパターンの色相の変化が認められた。
△ ： パターンの色相の変化が確認できた。
× ： 明瞭にパターンの変化を確認できなかった。
【００４６】
次に、樹脂層２０の表面に凹凸状に加工を施して識別記号を設けた場合について説明する。
サンプルは、前記したサンプルＮｏ．３、４、７および８の樹脂層２０の表面に型押しにより凹凸加工を施し、その他は前記と同様の条件により作成した。色相等の変化については官能試験により、客観的に評価した。
結果を表２に示す。
【００４７】
【表２】

【００４８】
パターンの変化については、以下の４段階の評価を行った。
◎ ： 極めて明瞭にパターンの色相の変化が認められ、目視角度によっては、パターンが消失し識別記号のみが観察された。
○ ： 明瞭にパターンの色相の変化が認められたが、目視角度を変えてもパターンが消失せず、識別記号も観察された。
△ ： パターンの色相の変化が確認できた。
× ： 明瞭にパターンの変化を確認できなかった。
【００４９】
評価の結果、樹脂層のベック平滑度に依存することなく、パターンの色相の変化が認められ、目視角度によっては、パターンが消失し、識別記号のみが観察された。
【００５０】
【発明の効果】
以上の説明から明らかなように、本発明によれば、偽造防止印刷物の表面の光沢度が１５〜３０％の上に樹脂層２０を介して鱗片状顔料粉を含む特定のインクを用いてパターン３０が形成されているため、パターン３０上の鱗片状顔料粉の光学的特性（屈折率、光路の変化等）に変化が生じる。このため、見る角度（視認方位角）によって、鱗片状顔料粉が少ない（光学的に少ないと認められる）あるいは光路の変化が生じて、見える部分と見えない部分が見る角度等によって変化するために、パターン３０が変化して見えることとなる。これによって、偽造防止印刷物の真偽が何人であっても容易に判断可能となる。
【００５１】
また鱗片状顔料粉を有する特定のインクに、前記インクに含まれる鱗片状顔料粉を、１〜５０重量％とすることにより、パターン３０が、見る方向によって異なる変化の効果が顕著に発揮されるため、偽造が極めて困難な偽造防止印刷物が複雑な工程を経ずに得られることとなる。
【００５２】
また、樹脂層２０の表面に特定の凹凸からなる識別記号４０を設けパターン３０と識別記号４０との重ね合わせ（組合せ）により、偽造防止印刷物を多様に形成することが可能である。
このような偽造防止印刷物は、従来のものに比較して、デザインに制約を受けずに製造されるため、株券、商品券、乗車券、定期券その他真偽が問題となるような広い範囲の印刷物に利用できることとなる。
【図面の簡単な説明】
【図１】図１は、本発明の偽造防止印刷物を有価証券に適用した例を示す図であり、（ａ）は、有価証券の表面を表した図であり、（ｂ）は、有価証券の裏面を表した図である。
【図２】図２は、図1 に示す有価証券のＡ−Ａ' 断面を拡大した図である。
【図３】図３は、図1 のＰで示す部分の拡大図であり、（ａ）は、ＲとＫのパターンと縞状の識別記号の両方が見える状態を示した図であり、（ｂ）は、方向イから見た場合のパターンのみが見える状態を示した図であり、（ｃ）は、方向ロから見た場合の識別記号のみが見える状態を示した図である。
【符号の説明】
１ 有価証券
５ 説明文・注意書等
１０ 基材
２０ 樹脂層
３０ パターン
４０ 識別記号
５０ 絵柄[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anti-counterfeit printed matter, and more particularly to an anti-counterfeit printed matter that can prevent forgery by a color copying machine and can also prevent forgery and imitation using a personal computer, a color printer, and a color scanner.
[0002]
[Prior art]
Various securities such as stock certificates, gift certificates, boarding tickets, commuter passes are distributed and used. Needless to say, since these securities have high economic value, prevention of counterfeiting is strongly required.
[0003]
These expensive securities, for example, are provided with precise background patterns from the standpoint of preventing counterfeiting (counterfeiting), but counterfeiting has become more sophisticated due to recent developments in printing technology, and the performance of color copiers. As a result of this improvement, since it is easily counterfeited simply by copying, or high-performance personal computers, color printers and color scanners are available at low prices, the printed matter is read after being read by a color scanner. It is now possible to create securities that are more elaborately counterfeited using high-performance equipment. Under such circumstances, there is a demand for printed matter that has been subjected to a more appropriate anti-counterfeiting process than ever before.
[0004]
[Problems to be solved by the invention]
Further, in the conventional determination of authenticity of securities by the naked eye, complicated patterns printed on the securities are determined by visual recognition, so there are many cases in which it is necessary to rely on the experience of those who determine authenticity.
[0005]
As a result, conventional securities have a problem that it is very difficult for the general public to determine whether they are legitimate securities.
[0006]
The present invention is difficult to counterfeit even using a high-performance color copier as described above, and is difficult to imitate or counterfeit accurately using a high-performance personal computer as described above, Moreover, it is an object of the present invention to provide a forgery-preventing printed material that can immediately determine whether it is a legitimate printed material without requiring skill.
[0007]
[Means for Solving the Problems]
In order to achieve this object, the present invention has the following features.
[0008]
<Forgery prevention printed matter>
The anti-counterfeit printed matter according to the present invention is
A pattern formed using an ink containing scaly pigment powder is directly formed on a resin layer having a smoothness defined by JIS P8119 formed on a substrate of 100 or more.
[0009]
The anti-counterfeit printed matter according to the present invention is
A forgery prevention printed matter in which a resin layer and a pattern are formed on a base material,
An unevenness is provided on the surface of a resin layer having a smoothness defined by JIS P8119 of 100 or more, and a pattern formed using ink containing scaly pigment powder is directly formed on the resin layer provided with the unevenness. It is characterized by being.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the forgery prevention printed matter according to the present invention will be described with reference to the drawings. 1 and 2 show an embodiment in which a forgery prevention printed matter according to the present invention is applied.
[0014]
FIG. 1 shows an application example when the anti-counterfeit printed matter according to the present invention is applied to the securities 1. FIG. 2 shows a cross section taken along the line AA ′ of FIG.
[0015]
In FIG. 2, a resin layer 20 is provided on at least a part of the base material 10, and a pattern 30 obtained from ink containing specific scaly pigment powder is formed through the resin layer 20.
[0016]
If the pattern 30 is provided on the resin layer 20 having a smoothness defined by JIS P 8119 of 100 or more, a changing effect similar to that provided when the pattern 30 is provided on the dark ground surface is obtained. In addition, since the pattern is provided via the resin layer 20, it is less likely to be restricted by the design as compared with the case where a dark-colored base is used. Such a resin layer 20 is preferably provided by a transparent or translucent resin.
[0017]
[ Base material ]
Although it does not specifically limit as the base material 10 used for this invention, The glossiness prescribed | regulated by JISP8142 is 15 as the base material 10 which can form the resin layer 20 on this base material 10, for example. Paper made in the range of ˜30% is preferably used. However, in the present invention, any substrate capable of forming such a resin layer 20 can be used without any limitation. For example, synthetic paper such as polyethylene terephthalate, polyester such as polybutylene terephthalate, or a film Can also be used.
[0018]
[Resin layer]
The resin layer 20 provided on the base material 10 preferably has a smoothness defined by JIS P8119 of 100 or more. In the forgery-preventing printed matter according to the present invention, a specific substrate having a specific value of gloss is used, and at the same time, the smoothness is 100 or more, preferably the resin layer is 120 or more as described above. . As described above, the smoothness of the resin layer used in the present invention is desirably 100 or more, preferably 120 or more as described above. In the present invention, by using the resin layer having the smoothness as described above in combination with a base material having a specific glossiness, a pattern change (changing pattern) formed on the anti-counterfeit print according to the present invention is changed. ) Is clearly shown. In particular, in the present invention, among the above values of smoothness, for example, when a high smoothness is used, the change tends to be excellent when used in combination with a base material having excellent glossiness. By doing so, it is possible to obtain an anti-counterfeit printed matter having a pattern with a clear change.
Such a resin layer 20 is obtained by applying a commonly used varnish or the like to the substrate 10.
In this invention, what is normally used for printed matter is mentioned as a varnish which forms such a resin layer 20. FIG. Such a varnish is obtained by dissolving or dispersing a resin in an organic solvent. In addition, a dye or a pigment can be added to the resin layer 20 for the purpose of coloring.
[0019]
Resin Examples of the resin contained in the varnish used in the present invention include polyvinyl chloride resin, vinyl chloride-vinyl acetate copolymer resin, vinyl chloride-vinyl acetate-vinyl alcohol copolymer resin, vinyl chloride- Vinyl acetate-maleic acid copolymer resin, vinyl chloride- (meth) acrylate copolymer resin, polyvinylidene chloride resin, vinylidene chloride-vinyl chloride copolymer resin, vinylidene chloride-acrylonitrile copolymer resin, polyester resin, polyamide Resin, (meth) acrylic resin, silicone resin, etc. are mentioned. Of these, vinyl chloride-vinyl acetate copolymer resin, vinyl chloride-vinyl acetate-vinyl alcohol copolymer resin, vinyl chloride-vinyl acetate-maleic acid copolymer resin, and polyester resin are preferable. A resin mixture of vinyl acetate and polyester resin is particularly preferred.
[0020]
Organic solvent As the varnish used in the present invention, a solution or dispersion obtained by dissolving or dispersing the above-described resin in an organic solvent can be used. Examples of the organic solvent used in such a solution or dispersion include ketone solvents and toluene. Examples of such an organic solvent include mixed solvents such as a 1: 1 mixture (weight ratio) of MEK (methyl ethyl ketone) and toluene.
[0021]
Coating method In the present invention, a resin layer is appropriately diluted on an organic solvent as described above, and a varnish adjusted to an appropriate viscosity is coated on the substrate 10, whereby a resin layer is formed on the substrate 10. 20 is formed. Such a coating method is not limited at all. For example, the resin layer 20 may be provided on the substrate 10 by gravure printing or the like. The resin layer 20 provided on the substrate 10 is preferably provided with a resin layer on a part of the substrate 10.
Such a resin layer 20 is preferably transparent or translucent. The resin layer 20 can also be provided on the entire surface of the substrate 10.
[0022]
[Background]
Further, before forming the resin layer 20 as described above on the base material 10, a base made of a pattern 50 may be provided on the base material 10. As a method of forming such a pattern 50, a printing method can be cited, but this printing method is not limited at all. For example, such a printing method includes an offset printing method. As the ink used for offset printing used for forming the base, commonly used offset inks such as UV ink and oil-based ink are used.
[0023]
Thus, after the pattern 50 such as the background pattern is formed on the base material 10 or when the varnish is directly applied as described above without providing the pattern 50 on the base material 10, a resin is formed on the base material 10. Layer 20 is formed. If the resin layer 20 is formed on such a base material 10, the base material 10 which has the resin layer 20 in which the smoothness prescribed | regulated by JISP8119 will be 100 or more is obtained.
[0024]
If the pattern 30 is formed on the resin layer 20 having a smoothness of 100 or more, forgery prevention printed matter such as the securities 1 having an excellent changing effect can be obtained. The securities 1 obtained by using the base material 10 on which such a resin layer 20 is formed are sufficient if the conventional product does not form the pattern 30 on a dark color base, for example, a base limited to black. In the present invention, since the changing effect of the pattern 30 is obtained by the resin layer 20 having a smoothness of a certain level or more in comparison with the case where the changing effect cannot be exhibited, the resin layer 20 is disposed on the pattern 50 via the resin layer 20. The pattern 30 can be formed and is not restricted by design.
[0025]
[ ink ]
Scale-like pigment powder The ink forming the pattern 30 includes a scale-like (flat) pigment powder. As the scaly pigment powder, for example, a pearl pigment is used. The scale of the scaly pigment powder used here has a scale of 1 to 80 μm, and more preferably 5 to 40 μm. The average scale size of the scaly pigment powder that can be used is preferably about 15 μm. Examples of such scaly pigment powder include pearl pigment powder in which mica such as Infinite Color GG series manufactured by Shiseido Co., Ltd. and Iriodin 200 and 500 series manufactured by Merck Japan Co., Ltd. are coated with titanium dioxide.
[0026]
Resin As the resin contained in the ink forming the pattern 30, the same resin as that used for forming the resin layer 20 can be used. For example, a mixture of vinyl chloride resin and polyester resin in a ratio (weight ratio) of vinyl chloride resin: polyester resin = 1: 1 is used.
[0027]
In addition, the transparency of the resin contained in the ink is not essential to the present invention, but a highly transparent resin is used in order to embody the pattern 30 (characters, figures, symbol part) by reflection / absorption, refraction, etc. of light. It is preferable. As such a highly transparent resin, a colorless one is preferably selected, but a colored one can be appropriately added as long as it does not change the gist of the present invention. In the present invention, a transparent or translucent resin layer 20 may be colored by adding a dye or the like.
[0028]
Solvent Examples of the solvent contained in the ink forming the pattern 30 include organic solvents used to form the resin layer 20. For example, as such an organic solvent, a ketone solvent, toluene, and two or more selected from these can be selected and used. As such a solvent, a mixture of MEK (methyl ethyl ketone) and toluene in a ratio of MEK: toluene = 1: 1 is used.
[0029]
The mixing ratio of the scaly pigment powder forming the ink is preferably 1 to 50% by weight in terms of the solid content contained in the ink, and converted to the solid content contained in the ink in order to express the changing effect more clearly. Thus, it is desirably in the range of 5 to 30% by weight.
[0030]
The pattern 30 may be formed using gravure printing, silk screen printing, or the like. These printing methods are preferable because the thickness can be easily managed.
[0031]
In the present invention, the pattern 30 obtained with the ink containing the scaly pigment powder has characters “KR” printed continuously as shown in FIG. 1, for example. The pattern 30 to be formed may be a character as described above, but the pattern 30 may be a figure, a symbol, or a pattern, and the pattern 30 is a combination of two or more selected from these characters, figures, and symbols. Furthermore, it may be one selected from characters, figures, symbols and patterns, or a combination of two or more.
[0032]
Therefore, the pattern 30 includes a line, a character, a figure, a symbol, a pattern, and one or more combinations selected from these. These are merely examples and may be other than those described above.
[0033]
In the present invention, in order to effectively change the pattern 30 according to the viewing angle, for example, the line width of characters or the like of the pattern 30 is set to 0.01 mm or more. More specifically, the line width is preferably from 0.01 to 50 mm, and more preferably from 0.1 to 10 mm in order to exert the change effect preferentially. In the present invention, it is only necessary to confirm that the pattern 30 has changed depending on the viewing angle. In the present invention, the line width 30 of the pattern may not be limited to the above range.
[0034]
Thus, the ink containing the scaly pigment powder is printed on the surface of the anti-counterfeit printed matter such as the securities 1 by, for example, “KR” to form the pattern 30, thereby forming the inside of the pattern 30 of the scaly pigment powder. For example, a non-uniform distribution occurs. That is, the light path or the like changes due to the distribution or orientation of the scale-like pigment powder changing substantially. Accordingly, the identification element or color of the pattern 30 changes or disappears depending on the viewing angle. Further, such a change in the thickness of the pattern 30, a change in color, and the like cannot be obtained by forgery, and it can be easily confirmed whether or not the forgery has been forged by the presence or absence of such a change.
[0035]
In FIG. 3, the enlarged view shown by the figure as the pattern 30 and the identification symbol 40 is shown. As shown in FIG. 3B, when a part of the pattern 30 is viewed from the direction B, only the identification element of the pattern 30 is visible, whereas when viewed from the direction B, the identification symbol 40 is displayed. Only visible.
[0036]
At this time, the surface of the resin layer 20 overlapping the pattern 30 is provided with irregularities so that the identification symbol 40 is formed. In this way, the surface of the transparent or translucent resin layer 20 is provided with an uneven identification symbol, and this unevenness is preferably in the form of a groove, for example, a grained shape, a line shape, or a character, figure, symbol or It is formed by a combination of these.
[0037]
As a method of forming the identification symbol 40 composed of such irregularities on the surface of the resin layer 20, a known method such as embossing may be mentioned. Furthermore, depending on the case, a method of forming irregularities by an electron beam irradiation method or a laser irradiation method may be employed.
[0038]
In this way, the forgery prevention printed matter such as the securities 1 in which the pattern 20 is formed using the ink containing the specific scaly pigment powder changes in color or pattern depending on the viewing direction as described above. However, such a change depending on the viewing direction is an example, and in the present invention, the direction in which the pattern 30 or the identification symbol 40 can be seen or the color thereof is changed is not limited to these directions. .
[0039]
In addition, as the base material 10 used in the present invention, a pattern 30 is formed by printing on the base material 10 having a glossiness of 15 to 30% defined by JIS P 8142 on the surface of the base material 10 through the resin layer 20. Then, the change of the identification symbol such as the color of the pattern 30 becomes remarkable, which is desirable. In the present invention, the color of the specific base material is not limited, but is preferably white from the viewpoint of printing diversity.
[0040]
EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is limited to these Examples and is not interpreted at all.
[0041]
Example The surface roughness defined in JIS P8119 was measured by Beck type smoothness.
[0042]
[Dark color base]
The ink shown below was printed on the substrate by offset printing to form a base having a dry film thickness of 1.2 μm.
Ink composition T & K TOKA RNC Process ink Sumi (UV ink / oil-based ink)
[Resin layer]
A resin layer 20 having a dry film thickness of about 2.1 μm was formed on the substrate by offset printing using the following varnish ink.
10% by weight with M-type clear wax (mixed with vinyl chloride and polyester resin)
Solvent methyl ethyl ketone: toluene = 1: 1 (weight ratio) 60% by weight
[Pattern]
A pattern with a dry film thickness of 1.3 μm was formed on the resin layer 20 by gravure printing using the following scaly pigment powder ink.
20% by weight of vinyl chloride / polyester resin mixture
Solvent methyl ethyl ketone: toluene = 1: 1 (weight ratio) 60% by weight
Infinite Color VP-2 (made by Shiseido Co., Ltd.) 20% by weight
[0043]
Samples were prepared on the paper A (white glossiness 10%) and paper B (white glossiness 28%) under the following conditions.
The results of objective evaluation by sensory test for changes in hue and the like of each sample are shown below. The papers A and B used Beck smoothness of 50.
[0044]
[Table 1]

[0045]
The change in pattern was evaluated according to the following four stages.
A: The pattern change was very clearly recognized, and the pattern disappeared and was observed depending on the viewing angle.
○: A clear change in the hue of the pattern was observed.
Δ: Change in the hue of the pattern was confirmed.
X: The pattern change could not be clearly confirmed.
[0046]
Next, a case where the surface of the resin layer 20 is processed to be uneven and an identification symbol is provided will be described.
The sample is sample No. described above. The surface of the resin layers 20 of 3, 4, 7, and 8 was processed by embossing by embossing, and the others were prepared under the same conditions as described above. Changes in hue and the like were objectively evaluated by a sensory test.
The results are shown in Table 2.
[0047]
[Table 2]

[0048]
About the change of the pattern, the following four grades were evaluated.
A: The hue of the pattern was very clearly changed. Depending on the viewing angle, the pattern disappeared and only the identification symbol was observed.
○: The change in the hue of the pattern was clearly recognized, but the pattern did not disappear even when the viewing angle was changed, and the identification symbol was also observed.
Δ: Change in the hue of the pattern was confirmed.
X: The pattern change could not be clearly confirmed.
[0049]
As a result of the evaluation, a change in the hue of the pattern was recognized without depending on the Beck smoothness of the resin layer, and depending on the viewing angle, the pattern disappeared and only the identification symbol was observed.
[0050]
【The invention's effect】
As is apparent from the above description, according to the present invention, the surface of the anti-counterfeit printed matter has a glossiness of 15 to 30% and a pattern using a specific ink containing scaly pigment powder via the resin layer 20. Since 30 is formed, a change occurs in the optical properties (refractive index, change in optical path, etc.) of the scaly pigment powder on the pattern 30. For this reason, depending on the viewing angle (viewing azimuth angle), there are few scaly pigment powders (perceived to be optically small) or the optical path changes, and the visible and invisible parts change depending on the viewing angle, etc. The pattern 30 appears to change. This makes it possible to easily determine whether the forgery-preventing printed matter is true or false.
[0051]
Further, the effect of changing the pattern 30 depending on the direction in which the pattern 30 is viewed is remarkably exhibited by setting the scale-like pigment powder contained in the ink to 1 to 50% by weight in the specific ink having the scale-like pigment powder. Therefore, a forgery-preventing printed matter that is extremely difficult to forge can be obtained without going through complicated steps.
[0052]
In addition, it is possible to form a variety of anti-counterfeit printed matter by providing an identification symbol 40 having specific unevenness on the surface of the resin layer 20 and superimposing (combining) the pattern 30 and the identification symbol 40.
Such anti-counterfeit printed matter is manufactured without restrictions on the design compared to conventional ones, so it has a wide range of issues such as stock certificates, gift certificates, boarding tickets, commuter passes and other authenticity issues. It can be used for printed matter.
[Brief description of the drawings]
FIG. 1 is a diagram showing an example in which a forgery-preventing printed matter of the present invention is applied to securities, (a) is a diagram showing the surface of securities, and (b) is securities. FIG.
FIG. 2 is an enlarged view of the AA ′ cross section of the securities shown in FIG.
FIG. 3 is an enlarged view of a portion indicated by P in FIG. 1, and (a) is a view showing a state where both R and K patterns and striped identification symbols are visible; (b) is a diagram showing a state where only the pattern is seen when viewed from the direction (a), and (c) is a diagram showing a state where only the identification symbol is seen when viewed from the direction (b).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Securities 5 Explanation sentence, notes, etc. 10 Base material 20 Resin layer 30 Pattern 40 Identification symbol 50 Picture

Claims (6)

A counterfeit characterized in that a pattern formed using an ink containing scaly pigment powder is directly formed on a resin layer having a smoothness defined by JIS P8119 of 100 or more formed on a substrate. Prevent printed matter. A forgery prevention printed matter in which a resin layer and a pattern are formed on a base material,
JIS smoothness defined by P8119 is irregularities provided on the surface of more than 100 of the resin layer, on the resin layer provided with the unevenness pattern formed by using the ink containing the scaly pigment powder is formed directly Anti-counterfeit printed matter characterized by having The forgery-preventing printed matter according to claim 1 or 2, wherein a base layer comprising a pattern is formed between the base material and the resin layer. The forgery-preventing printed matter according to any one of claims 1 to 3, wherein the base material is a base material having a glossiness of 15 to 30% defined by JIS P 8142. The anti-counterfeit printed matter according to any one of claims 1 to 4, wherein the ink is an ink having a scale-like pigment powder in an amount of 1 to 50% by weight in terms of solid content. The anti-counterfeit printed matter according to any one of claims 1 to 5, wherein the scaly pigment powder is distributed in a range of 1 to 80 µm.

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