JPH06255234A - Two-tone intaglio printed matter - Google Patents

Two-tone intaglio printed matter

Info

Publication number
JPH06255234A
JPH06255234A JP5067403A JP6740393A JPH06255234A JP H06255234 A JPH06255234 A JP H06255234A JP 5067403 A JP5067403 A JP 5067403A JP 6740393 A JP6740393 A JP 6740393A JP H06255234 A JPH06255234 A JP H06255234A
Authority
JP
Japan
Prior art keywords
angle
intaglio
printed matter
color
sample
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.)
Granted
Application number
JP5067403A
Other languages
Japanese (ja)
Other versions
JP2741741B2 (en
Inventor
Kazunori Taniguchi
一憲 谷口
Katsuhiko Kawaguchi
勝彦 川口
Eishin Kaneko
英信 金子
Satoshi Kaneko
智 金子
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Printing Bureau
Original Assignee
Printing Bureau Ministry of Finance
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Printing Bureau Ministry of Finance filed Critical Printing Bureau Ministry of Finance
Priority to JP5067403A priority Critical patent/JP2741741B2/en
Publication of JPH06255234A publication Critical patent/JPH06255234A/en
Application granted granted Critical
Publication of JP2741741B2 publication Critical patent/JP2741741B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Cleaning In Electrography (AREA)

Abstract

PURPOSE:To provide an intaglio printed matter which does not require a colored ground and has a two-tone effect, by a method wherein an intaglio printing area is formed of intaglio printing ink containing iridescent pearl pigment, which is made into colore state, on a white ground. CONSTITUTION:In a two-tone intaglio printed matter, an intaglio printing area is formed with intaglio printing ink containing iridescent pearl pigment, which is made into a colored state, on a white ground. As for the printed matter, a a spectral change of a reflection rate in the case where an angle is changed by making use of a varied-angle colorimeter is shown on a diagram. In diagram, 9, 10, 11, 12 are respectively spectral curves of the reflectivity when their respective incident angles are 45 deg. and lights receiving angles of test samples are -20 deg., 0 deg., 20 deg., 60 deg.. Although the 9 becomes black as a color through its reflectivity spectrum, when the light receiving angle becomes high, reflection rate in the vicinity of 500nm is high. This means that a change of the angle by one intaglio printing ink results in a two-tone color change from achromatic color to chromatic color.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は角度を変えて見ることに
より色相変化する凹版印刷物に関するもので、このよう
な凹版印刷物は偽造防止及び複写防止印刷物として広く
使用できる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intaglio printed matter that changes in hue when viewed at different angles, and such an intaglio printed article can be widely used as anti-counterfeit and anti-copy printed matter.

【0002】[0002]

【従来の技術】従来より凹版印刷は、偽造防止を目的と
して銀行券及び有価証券等に用いられているが、その印
刷物は画線の盛り上がりはあるものの二色性効果を示す
ものではない。また、多色性インキとして雲母粒子の表
面を二酸化チタンで被覆した虹彩色パ−ル顔料を用いた
インキが考案されているが、このインキは有色の下地の
上に印刷しなければ二色性効果が得られず、印刷方式も
グラビア印刷及びスクリ−ン印刷に限られていた。
2. Description of the Related Art Intaglio printing has hitherto been used for banknotes, securities, etc. for the purpose of preventing forgery, but the printed matter does not show the dichroic effect although the image lines are raised. Also, as a polychromatic ink, an ink using an iris-colored pigment in which the surface of mica particles is coated with titanium dioxide has been devised, but this ink is dichroic unless it is printed on a colored substrate. The effect was not obtained, and the printing method was limited to gravure printing and screen printing.

【0003】[0003]

【発明が解決しようとする課題】雲母粒子の表面を二酸
化チタンで被覆した虹彩色パ−ル顔料を単独で用いたイ
ンキによる印刷物は、有色の下地に印刷しなければ二色
性効果が得られなかったが、本発明では、雲母粒子の表
面を二酸化チタンで被覆した虹彩色パ−ル顔料に着色顔
料を添加した凹版インキ又は虹彩色パ−ル顔料の二酸化
チタン層を還元し、その一部を低次酸化チタンとして着
色化したパ−ル顔料を含む凹版インキを使用すること
で、いずれも有色の下地を必要とせず、しかも二色性効
果のある凹版印刷物を提供することを目的とするもので
ある。
Problems to be Solved by the Invention A printed matter produced by using an iris-colored pearl pigment whose surface is coated with titanium dioxide on the surface of mica particles is not dichroic unless it is printed on a colored substrate. However, in the present invention, the titanium dioxide layer of intaglio ink or iris color pigments obtained by adding a coloring pigment to an iris color pigment coated with titanium dioxide on the surface of mica particles is reduced, and a part thereof is reduced. By using an intaglio ink containing a pearl pigment colored as a low order titanium oxide, it is an object of the present invention to provide an intaglio printed matter that does not require a colored base and has a dichroic effect. It is a thing.

【0004】[0004]

【課題を解決するための手段】雲母粒子の表面を二酸化
チタンで被覆した虹彩色パ−ル顔料に着色顔料を添加し
た凹版インキ又は虹彩色パ−ル顔料の二酸化チタン層を
還元し、その一部を低次酸化チタンとして着色化したパ
−ル顔料を含む凹版インキを用いて、白色の下地に凹版
画線を形成することを特徴とする。
Means for Solving the Problems An intaglio ink in which a coloring pigment is added to an iris color pigment whose surface is coated with titanium dioxide or a titanium dioxide layer of the iris color pigment is reduced, and It is characterized in that an intaglio printing line is formed on a white background by using an intaglio ink containing a pearl pigment colored as a low-order titanium oxide.

【0005】[0005]

【作用】本発明の凹版印刷物は、雲母粒子の表面を二酸
化チタンで被覆した虹彩色パ−ル顔料と着色顔料を含有
する凹版インキ又は雲母表面を二酸化チタンで被覆し、
次いで前記二酸化チタン層の一部を還元処理し、低次酸
化チタンとしたパ−ル顔料を含有する凹版インキは、白
色の下地に凹版印刷することで二色性効果が得られ、こ
の印刷物を所望の角度で見ることによりそのインキ皮膜
は種々の色に変化する。
The intaglio printed matter of the present invention comprises an intaglio ink containing an iris-colored pearl pigment having the surface of mica particles coated with titanium dioxide and a mica surface coated with titanium dioxide.
Then, a part of the titanium dioxide layer is subjected to a reduction treatment, and an intaglio ink containing a par pigment which is a low order titanium oxide is intaglio printed on a white base to obtain a dichroic effect. By looking at the desired angle, the ink film changes to various colors.

【0006】[0006]

【実施例】次に、実施例によって本発明を詳細に説明す
るが、本発明はこれらの例によってなんら限定されるも
のではない。
EXAMPLES The present invention will now be described in detail with reference to examples, but the present invention is not limited to these examples.

【0007】(実施例1) 雲母粒子の表面を被覆する
二酸化チタンの一部を還元した着色パール顔料〔インフ
ィニットカラ−、GG−02−L1、(株)資生堂製〕
を用いた凹版インキを作製し、一定の画線深度(60〜
80μm)で構成された凹版版面で上質紙に凹版印刷を
行う。この凹版インキは、パ−ル顔料を30%程度、ア
ルキド樹脂を用いたビヒクルを70%程度配合したもの
である。その結果、凹版インキ画線の色は正面から見た
場合、光の干渉によって緑色であるが、見る角度を変え
た場合に黒色に変化する。また、この印刷物について変
角色彩測色計(GSP−1型、村上色彩技術研究所製)
を使用して角度を変えた場合の反射率スペクトル変化を
図2に示す。
Example 1 A colored pearl pigment obtained by reducing a part of titanium dioxide coating the surface of mica particles [Infinite Color, GG-02-L1, manufactured by Shiseido Co., Ltd.]
An intaglio ink using
Intaglio printing is performed on woodfree paper with an intaglio plate surface composed of 80 μm). This intaglio ink contains about 30% of a pearl pigment and about 70% of a vehicle using an alkyd resin. As a result, the color of the intaglio ink image line is green due to light interference when viewed from the front, but changes to black when the viewing angle is changed. A gonio colorimeter (GSP-1 type, manufactured by Murakami Color Research Laboratory)
FIG. 2 shows the reflectance spectrum change when the angle is changed by using.

【0008】図1は,変角色彩測色計の測定原理(角度
設定)を示した図である。この場合、光源の入射角が固
定(45°)で、受光角を−20°〜60°まで変化さ
せて測定する。図1の1は、受光角が−20°のときの
試料台の位置を示すもので、試料台の法線が図1の2に
なり、光源3(入射角)は法線から45°に位置し、こ
の反射率を受光器4で測定する。同様に、受光角が60
°の場合の試料台の位置は図1の5で、法線の位置は図
1の6になり、光源の位置が図1の7で、この反射率を
受光器4で測定する。受光角が0°の場合の試料台の位
置が図1の8で、試料台の法線は受光器4の位置にな
る。
FIG. 1 is a diagram showing the measurement principle (angle setting) of a variable angle colorimeter. In this case, the incident angle of the light source is fixed (45 °), and the light receiving angle is changed from −20 ° to 60 ° for measurement. 1 in FIG. 1 shows the position of the sample stage when the acceptance angle is −20 °, the normal line of the sample stage is 2 in FIG. 1, and the light source 3 (incident angle) is 45 ° from the normal line. Then, the reflectance is measured by the light receiver 4. Similarly, the acceptance angle is 60
The position of the sample table in the case of ° is 5 in FIG. 1, the position of the normal is 6 in FIG. 1, the position of the light source is 7 in FIG. 1, and this reflectance is measured by the light receiver 4. The position of the sample table when the light receiving angle is 0 ° is 8 in FIG. 1, and the normal line of the sample table is the position of the light receiver 4.

【0009】図2の9は,光源の入射角が45゜で、試
料(受光)角度が−20°のときの反射率スペクトル曲
線である。図2の10は、光源の入射角が45゜で、試
料(受光)角度が0°のときの反射率スペクトル曲線で
ある。図2の11は、光源の入射角が45゜で、試料
(受光)角度が20°のときの反射率スペクトル曲線で
ある。図2の12は、光源の入射角が45゜で、試料
(受光)角度が60°のときの反射率スペクトル曲線で
ある。図2の9の反射率曲線より色彩としては、黒色に
なるが、受光角が大きくなると、500nm付近(緑
色)の反射率が高くなっている。このことは、一つの凹
版インキで、角度を変えることにより、無彩色から有彩
色へと二色の色変化をもたらすものである。パ−ル顔料
の種類を選ぶことでいろいろな干渉色のものが得られ
る。
Reference numeral 9 in FIG. 2 is a reflectance spectrum curve when the incident angle of the light source is 45 ° and the sample (light receiving) angle is -20 °. 2 is a reflectance spectrum curve when the incident angle of the light source is 45 ° and the sample (light receiving) angle is 0 °. Reference numeral 11 in FIG. 2 is a reflectance spectrum curve when the incident angle of the light source is 45 ° and the sample (light receiving) angle is 20 °. Reference numeral 12 in FIG. 2 is a reflectance spectrum curve when the incident angle of the light source is 45 ° and the sample (light receiving) angle is 60 °. From the reflectance curve 9 in FIG. 2, the color is black, but the reflectance near 500 nm (green) increases as the acceptance angle increases. This means that one intaglio ink brings about a two-color change from an achromatic color to a chromatic color by changing the angle. Various interference colors can be obtained by selecting the type of pearl pigment.

【0010】(実施例2)虹彩色パ−ル顔料として商品
名イリオジン 235 ルチルプラチナグリ−ン〔メル
クジャパン(株)製〕を30%程度、着色顔料として黒
色顔料であるカ−ボンブラックを0.1〜0.2%、そ
の他アルキド樹脂を用いたビヒクルで構成された凹版イ
ンキで、実施例1と同様に上質紙に凹版印刷を行う。そ
の結果、凹版インキ画線の色は正面から見た場合、光の
干渉によって緑色であるが、見る角度を変えた場合に黒
色に変化する。また、この印刷物について変角色彩測色
計を使用して角度を変えた場合の反射率スペクトル変化
を図3に示す。
(Example 2) Iriodin 235 rutile platinum green (manufactured by Merck Japan Ltd.) of about 30% was used as an iris color pigment, and carbon black, a black pigment, was used as a color pigment. An intaglio printing is performed on woodfree paper in the same manner as in Example 1 with an intaglio ink composed of a vehicle using 1 to 0.2% and other alkyd resin. As a result, the color of the intaglio ink image line is green due to light interference when viewed from the front, but changes to black when the viewing angle is changed. Further, FIG. 3 shows a change in reflectance spectrum when the angle of this printed matter is changed using a goniochromatic colorimeter.

【0011】図3の13は、光源の入射角が45゜で、
試料(受光)角度が−20°のときの反射率スペクトル
曲線である。図3の14は、光源の入射角が45゜で、
試料(受光)角度が0°のときの反射率スペクトル曲線
である。図3の15は、光源の入射角が45゜で、試料
(受光)角度が20°のときの反射率スペクトル曲線で
ある。図3の16は、光源の入射角が45゜で、試料
(受光)角度が60°のときの反射率スペクトル曲線で
ある。ここで使用した虹彩色パ−ル顔料は、黒色顔料を
併用しなければ下地が白であるため、干渉色はあまり得
られない。黒色顔料を適量併用することで二色性がある
凹版印刷物が得られる。また,前述の虹彩色パ−ル顔料
の種類を選ぶことでいろいろな干渉色のものが得られ
る。
Reference numeral 13 in FIG. 3 indicates that the incident angle of the light source is 45 °,
It is a reflectance spectrum curve when a sample (light reception) angle is -20 °. 14 in FIG. 3 has an incident angle of 45 ° of the light source,
It is a reflectance spectrum curve when a sample (light reception) angle is 0 °. Reference numeral 15 in FIG. 3 is a reflectance spectrum curve when the incident angle of the light source is 45 ° and the sample (light receiving) angle is 20 °. Reference numeral 16 in FIG. 3 is a reflectance spectrum curve when the incident angle of the light source is 45 ° and the sample (light receiving) angle is 60 °. The iris color pigment used here does not give much interference color because the base is white unless a black pigment is used together. An intaglio printed matter having dichroism can be obtained by using an appropriate amount of a black pigment. Moreover, various interference colors can be obtained by selecting the kind of the above-mentioned iris color pigment.

【0012】(実施例3)実施例2と同様に、イリオジ
ン 235 ルチルプラチナグリ−ン〔メルクジャパン
(株)製〕を30%程度、着色顔料として、パ−マネン
トレッドFGRを0.02〜0.05%、その他アルキ
ド樹脂を用いたビヒクルで構成された凹版インキで、実
施例1と同様に凹版印刷を行う。その結果、凹版インキ
画線の色は正面から見た場合、光の干渉によって緑色で
あるが、見る角度を変えた場合に赤色に変化する。ま
た、この印刷物について変角色彩測色計を使用して角度
を変えた場合の反射率スペクトル変化を図4に示す。
(Example 3) As in Example 2, about 30% of Iriodin 235 rutile platinum green (manufactured by Merck Japan KK) and 0.02 to 0 of Permanent Red FGR as a color pigment. Intaglio printing is carried out in the same manner as in Example 1 using an intaglio ink composed of a vehicle using 0.05% of other alkyd resin. As a result, the color of the intaglio ink image line is green due to light interference when viewed from the front, but changes to red when the viewing angle is changed. Further, FIG. 4 shows the reflectance spectrum change when the angle of this printed matter is changed by using a goniochromatic colorimeter.

【0013】図4の17は、光源の入射角が45゜で、
試料(受光)角度が−20°のときの反射率スペクトル
曲線である。図4の18は、光源の入射角が45゜で、
試料(受光)角度が−10°のときの反射率スペクトル
曲線である。図4の19は、光源の入射角が45゜で、
試料(受光)角度が0°のときの反射率スペクトル曲線
である。図4の20は、光源の入射角が45゜で、試料
(受光)角度が10°のときの反射率スペクトル曲線で
ある。図4の21は、光源の入射角が45゜で、試料
(受光)角度が20°のときの反射率スペクトル曲線で
ある。この場合も実施例2と同様、メルクジャパン製虹
彩色パ−ル顔料の種類と着色顔料の色彩及び添加量を考
慮することで、例えば赤の有彩色から緑の有彩色へと色
変化する二色性凹版印刷物が得られる。
Reference numeral 17 in FIG. 4 indicates that the incident angle of the light source is 45 °,
It is a reflectance spectrum curve when a sample (light reception) angle is -20 °. In 18 of FIG. 4, the incident angle of the light source is 45 °,
It is a reflectance spectrum curve when a sample (light receiving) angle is -10 °. In 19 of FIG. 4, the incident angle of the light source is 45 °,
It is a reflectance spectrum curve when a sample (light reception) angle is 0 °. Reference numeral 20 in FIG. 4 is a reflectance spectrum curve when the incident angle of the light source is 45 ° and the sample (light receiving) angle is 10 °. Reference numeral 21 in FIG. 4 is a reflectance spectrum curve when the incident angle of the light source is 45 ° and the sample (light receiving) angle is 20 °. Also in this case, as in Example 2, by considering the kind of the iris color pigment manufactured by Merck Japan, the color of the color pigment, and the addition amount, for example, a color change from a red chromatic color to a green chromatic color is performed. A chromatic intaglio print can be obtained.

【0014】[0014]

【発明の効果】従来の虹彩色パ−ル顔料を用いた凹版イ
ンキは有色の下地に印刷しなければ二色性効果が得られ
なかったが、本発明の凹版印刷物は下地が白であっても
干渉効果が得られるため、下地を印刷する必要がない。
また見る角度によって色変化するため、偽造防止、複写
防止効果が極めて大きい凹版印刷物が得られる。
EFFECTS OF THE INVENTION Conventional intaglio inks using iris-colored pearlescent pigments cannot obtain a dichroic effect unless they are printed on a colored substrate, but the intaglio printed matter of the present invention has a white substrate. Also, since the interference effect can be obtained, it is not necessary to print the background.
Further, since the color changes depending on the viewing angle, it is possible to obtain an intaglio printed matter having extremely large anti-counterfeiting and anti-copying effects.

【図面の簡単な説明】[Brief description of drawings]

【図1】変角色彩測色計の測定原理を示す図である。FIG. 1 is a diagram showing a measurement principle of a variable angle colorimeter.

【図2】実施例1の凹版印刷物の場合、変角色彩測色計
を使用して、光源の入射角を45゜に固定して、試料
(受光)角度を変化させた場合の反射率スペクトルを示
す図である。
FIG. 2 is a reflectance spectrum in the case of the intaglio printed matter of Example 1, in which the incident angle of the light source is fixed to 45 ° and the sample (light receiving) angle is changed by using a variable angle colorimeter. FIG.

【図3】実施例2の凹版印刷物の場合、変角色彩測色計
を使用して、光源の入射角を45゜に固定して、試料
(受光)角度を変化させた場合の反射率スペクトルを示
す図である。
FIG. 3 is a reflectance spectrum in the case of the intaglio printed matter of Example 2, in which the incident angle of the light source is fixed to 45 ° and the sample (light receiving) angle is changed by using a variable angle colorimeter. FIG.

【図4】実施例3の凹版印刷物の場合、変角色彩測色計
を使用して、光源の入射角を45゜に固定して、試料
(受光)角度を変化させた場合の反射率スペクトルを示
す図である。
FIG. 4 is a reflectance spectrum of the intaglio printed matter of Example 3 when the incident angle of the light source is fixed at 45 ° and the sample (light receiving) angle is changed using a goniochromatic colorimeter. FIG.

【符号の説明】[Explanation of symbols]

1 受光角−20゜の場合の試料台の位置 2 受光角−20゜の場合の試料台の法線 3 受光角−20゜の場合、入射角45゜の光源の位置 4 受光器の位置(固定) 5 受光角が60°の場合の試料台の位置 6 受光角が60゜の場合の試料台の法線 7 受光角が60゜の場合の入射角45゜の光源の位置 8 受光角が0°の場合の試料台の位置 9 光源の入射角を45°に固定し、試料(受光)角度
が−20゜のときの反射率スペクトル曲線 10 光源の入射角を45゜に固定し、試料(受光)角度
が0゜のときの反射率スペクトル曲線 11 光源の入射角を45°に固定し、試料(受光)角度
が20゜のときの反射率スペクトル曲線 12 光源の入射角を45°に固定し、試料(受光)角度
が60゜のときの反射率スペクトル曲線 13 光源の入射角を45°に固定し、試料(受光)角度
が−20゜のときの反射率スペクトル曲線 14 光源の入射角を45°に固定し、試料(受光)角度
が0゜のときの反射率スペクトル曲線 15 光源の入射角を45°に固定し、試料(受光)角度
が20゜のときの反射率スペクトル曲線 16 光源の入射角を45°に固定し、試料(受光)角度
が60゜のときの反射率スペクトル曲線 17 光源の入射角を45°に固定し、試料(受光)角度
が−20゜のときの反射率スペクトル曲線 18 光源の入射角を45°に固定し、試料(受光)角度
が−10゜のときの反射率スペクトル曲線 19 光源の入射角を45°に固定し、試料(受光)角度
が0゜のときの反射率スペクトル曲線 20 光源の入射角を45°に固定し、試料(受光)角度
が10゜のときの反射率スペクトル曲線 21 光源の入射角を45°に固定し、試料(受光)角度
が20゜のときの反射率スペクトル曲線
1 Position of the sample stand when the acceptance angle is -20 ° 2 Normal of the sample stand when the acceptance angle is -20 ° 3 Position of the light source with an incident angle of 45 ° when the acceptance angle is -20 ° 4 Position of the receiver ( 5) Position of the sample stand when the acceptance angle is 60 ° 6 Normal line of the sample stand when the acceptance angle is 60 ° 7 Position of the light source with an incident angle of 45 ° when the acceptance angle is 60 ° 8 The acceptance angle is Position of the sample table at 0 ° 9 Fix the incident angle of the light source to 45 °, reflectivity spectrum curve when the sample (light receiving) angle is -20 ° 10 Fix the incident angle of the light source to 45 °, The reflectance spectrum curve when the (light-receiving) angle is 0 ° 11 The incident angle of the light source is fixed at 45 °, and the reflectance spectrum curve when the sample (light-receiving) angle is 20 ° The incident angle of the light source is set at 45 ° Fixed, reflectance spectrum curve when sample (light receiving) angle is 60 ° 13 Incident angle of light source is 45 ° The reflectance spectrum curve when the sample (light receiving) angle is -20 ° 14 The incident angle of the light source is fixed at 45 °, and the reflectance spectrum curve 15 when the sample (light receiving) angle is 0 ° Reflectance spectrum curve when the angle (45 °) is fixed and the sample (light receiving) angle is 20 ° 16 Reflectance spectrum curve when the incident angle of the light source is fixed at 45 ° and the sample (light receiving) angle is 60 ° 17 Reflectance spectrum curve when the incident angle of the light source is fixed at 45 ° and the sample (light receiving) angle is -20 ° 18 The incident angle of the light source is fixed at 45 ° and the sample (light receiving) angle is -10 ° When the incident angle of the light source is fixed at 45 ° and the sample (light receiving) angle is 0 °, the reflectance spectrum curve is set at 45 ° and the incident angle of the light source is fixed at 45 °. The reflectance spectrum curve when the angle is 10 ° 21 5 ° to fixed, reflectance spectrum curve when the sample (light-receiving) an angle of 20 °

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 白色の下地に、有色化した虹彩色パ−ル
顔料を含む凹版インキで、凹版画線を形成してなること
を特徴とする二色性凹版印刷物。
1. A dichroic intaglio printed material, comprising an intaglio ink line formed with an intaglio ink containing a colored iris color pigment on a white background.
【請求項2】 凹版インキが、雲母粒子の表面を二酸化
チタンで被覆した虹彩色パ−ル顔料に着色顔料を含有す
る請求項1記載の二色性凹版印刷物。
2. The dichroic intaglio printed material according to claim 1, wherein the intaglio ink contains an iris-colored pearl pigment whose surface is covered with titanium dioxide, and a coloring pigment.
【請求項3】 凹版インキが、虹彩色パ−ル顔料の二酸
化チタン層を還元し、該被覆層の一部を黒色の低次酸化
チタンとしたパ−ル顔料を含有する請求項1記載の二色
性凹版印刷物。
3. The intaglio ink according to claim 1, wherein the titanium dioxide layer of the iris color pigment is reduced and a part of the coating layer is black low-order titanium oxide. Dichroic intaglio print.
JP5067403A 1993-03-04 1993-03-04 Dichroic intaglio printed matter Expired - Lifetime JP2741741B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5067403A JP2741741B2 (en) 1993-03-04 1993-03-04 Dichroic intaglio printed matter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5067403A JP2741741B2 (en) 1993-03-04 1993-03-04 Dichroic intaglio printed matter

Publications (2)

Publication Number Publication Date
JPH06255234A true JPH06255234A (en) 1994-09-13
JP2741741B2 JP2741741B2 (en) 1998-04-22

Family

ID=13343946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5067403A Expired - Lifetime JP2741741B2 (en) 1993-03-04 1993-03-04 Dichroic intaglio printed matter

Country Status (1)

Country Link
JP (1) JP2741741B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002211102A (en) * 2001-01-18 2002-07-31 Kobayashi Kirokushi Co Ltd Antifalsifying form
WO2002031780A3 (en) * 2000-10-13 2003-03-13 Bank Of England Detection of printing and coating media
JP2003182202A (en) * 2001-12-18 2003-07-03 Dainippon Printing Co Ltd Latent image displaying medium
JP2020006575A (en) * 2018-07-06 2020-01-16 共同印刷株式会社 Printing medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002031780A3 (en) * 2000-10-13 2003-03-13 Bank Of England Detection of printing and coating media
JP2002211102A (en) * 2001-01-18 2002-07-31 Kobayashi Kirokushi Co Ltd Antifalsifying form
JP2003182202A (en) * 2001-12-18 2003-07-03 Dainippon Printing Co Ltd Latent image displaying medium
JP2020006575A (en) * 2018-07-06 2020-01-16 共同印刷株式会社 Printing medium

Also Published As

Publication number Publication date
JP2741741B2 (en) 1998-04-22

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