JP2009227702A - Intaglio printing ink composition and printed matter obtained using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve adhesion property of an ultraviolet-curable, oxidation-polymerizable intaglio printing ink composition to a substrate such as a plastic in which penetration of the ink composition cannot be expected. <P>SOLUTION: The intaglio printing ink composition comprises at least an ultraviolet-curable composition, an oxidation-polymerizable composition, a photopolymerization initiator, an oxidation polymerization catalyst and a polymerization inhibitor, wherein the compounding ratio of the ultraviolet-curable composition to the oxidation-polymerizable composition is from 75:25 to 65:35, and the oxidation-polymerizable composition comprises at least one chosen from linseed oil and soybean oil. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to an intaglio printing ink composition and use thereof. In particular, it is used for manufacturing security prints and art prints that are required to prevent counterfeiting and alteration such as banknotes, passports, securities, and postage stamps.

Banknotes, passports, securities, stamps, and the like are required to be difficult to forge or falsify due to their nature, and aesthetic elements are also required. Due to such demands, intaglio engraving printing is used for printing banknotes and the like, which is very excellent in printed matter, has a complicated plate making process, and is not easily counterfeited.

In addition, the features of the engraving intaglio printed matter produced by this engraving intaglio printing method are that it is possible to form a unique feeling of touch, fine and sharp lines, and that it cannot be manufactured without using a special printing machine. For these reasons as well, engraving intaglio printing is frequently used for the security printed matter.

Intaglio printing creates a concave image line on a metal plate surface, fills it with ink, stuffs the ink into the image line recess, wipes off excess ink on the intaglio plate surface, and applies strong pressure to the paper. This is a printing method for transferring ink.

Normally, the depth of the intaglio line is as high as 100 μm, but the ink transferred to the paper is a part of the ink that is deposited, and the thickness of the ink film on the paper after the transfer is It is about 10 μm to 40 μm. However, since the thickness of the ink film on this paper is significantly thicker than other printing methods, loading the printed material after printing causes problems such as so-called back-off, in which the ink moves to the back of the overlaid printed material. To do.

If the ink is dried quickly in order to prevent set-off, the ink drying reaction proceeds to some extent at the time of ink transfer to the paper, so that an ink transfer failure may occur.

In addition, in the ink for intaglio printing, the proportion of the vehicle component used for fixing the ink is relatively smaller than the ink used in other printing methods, and the high molecular weight resin content in the vehicle is high. Cannot be included. For this reason, when the printed image is rubbed with paper or the like, a so-called choking problem occurs in which the undried ink surface adheres to the rubbed paper. For example, in a machine that processes banknotes at high speed, such as a banknote automatic payment machine, it causes a problem that a contact portion such as a roller that sends out banknotes gets dirty.

In offset printing where the thickness of the ink film on the paper is about 1 μm, ultraviolet rays are irradiated by using an ultraviolet curable composition as a vehicle in order to prevent the printed material from turning over and to improve the choking resistance of the ink cured film. Thus, an ultraviolet drying method for curing the vehicle is widely practiced. However, if the UV drying method is applied to intaglio printing, the thickness of the ink film on the paper is 20 μm or more. In intaglio printing, if ink with a high color density is used, the pigment film absorbs the ultraviolet light, and the ink film Ultraviolet rays do not pass through to the inside, resulting in poor ink drying.

Therefore, the applicant of the present application has already applied for an ink having both ultraviolet curing and oxidative polymerization functions and a printed material using the same for the purpose of curing a thick ink film that does not transmit ultraviolet rays. Here, by using a vehicle in which an ultraviolet curable composition, an oxidative polymerizable composition, a photopolymerization initiator, and an oxidative polymerization catalyst are mixed as the intaglio printing ink composition, the surface of the ink film after printing is exposed to ultraviolet rays. In order to prevent set-off, the UV curable material is polymerized by radicals generated from the oxidatively polymerizable material and the oxidative polymerization catalyst inside the uncured ink film, which leads to complete curing. (For example, refer to Patent Document 1).

In addition, by using polyglycerin polyacrylate that is excellent in flexibility and excellent in ultraviolet curing property as an ultraviolet curable composition, the intaglio printed material is fixed to each other when the intaglio printed material is stacked, so-called blocking phenomenon is reduced, An application has been filed for a resin composition for intaglio ink, an ink composition using the same, and a printed material thereof (for example, see Patent Document 2).

Furthermore, as an oxidatively polymerizable material in the ink composition for intaglio inks 1 and 2 of the patent document, the condensate of polybasic acid and polyhydric alcohol is changed to alkyd resin modified with drying oil or drying oil fatty acid, An application has been filed for an ink composition for intaglio ink and a method for producing an intaglio print using an oxidatively polymerizable material that does not use anhydrous phthalic anhydride or xylene as an azeotropic solvent (see, for example, Patent Document 3).
Japanese Patent Publication No. 8-892 JP 2002-38065 A JP 2007-145962 A

However, the above-described printing material of the ink composition for intaglio printing can be used as a base material such as paper or plastic sheet, but the base material for which infiltration of the intaglio printing ink composition such as a plastic sheet cannot be expected In this case, there remains a problem that the ink setting property is lowered.

In addition, the ink composition for intaglio printing may be inferior in adhesion to the substrate due to volumetric shrinkage during curing by ultraviolet curing, resulting in inferior adhesion to the substrate. Since it was also confirmed that the adhesion was inferior, a problem remained.

The present invention is an intaglio printing ink composition capable of preventing the occurrence of set-off, improving choking resistance and printing quality, and can provide a stable printed matter even during continuous operation of a printing press, and can be used as a plastic sheet. It is an object of the present invention to provide an ink composition for intaglio printing that can provide adhesion to a base material that cannot be expected to penetrate, and a printed product thereof.

In order to solve the above-mentioned problems, an intaglio printing ink composition according to the present invention comprises at least an ultraviolet curable composition, an oxidation polymerizable composition, a photopolymerization initiator, an oxidation polymerization catalyst, and a polymerization inhibitor. An ink composition for intaglio printing, wherein the oxidatively polymerizable composition contains at least one selected from sesame oil and soybean oil.

In addition, the water-soluble ultraviolet curable composition described above is mainly composed of a water-soluble compound having a photopolymerizable double bond, and the oxidatively polymerizable composition includes an acid anhydride that reacts with an alcoholic hydroxyl group and is esterified. It is characterized by being an intaglio printing ink composition which is a liquid material composed of a monohydric alcohol and modified from 100 or more iodinated oils or fats.

In addition, the resin composition for intaglio ink has a constitutional ratio between the ultraviolet curable material and the oxidative polymerizable material in a range of 75:25 to 65:35 (wt%: wt%).

The ink composition for intaglio printing is a printed material printed on plastic, metal, wood, ceramics, glass, or the like, which is a base material from which the permeability cannot be expected.

Moreover, it is the printed matter printed using the ink composition for intaglio printing of this invention, It is characterized by the above-mentioned.

In addition, the present invention is characterized in that a printed matter using the intaglio printing ink composition of the present invention is used as a forgery-preventing printed matter and / or a true / false discrimination printed matter.

The intaglio printing ink composition of the present invention increases the proportion of the oxidatively polymerizable composition so that the intaglio printing ink composition such as a plastic sheet can reliably adhere to a substrate that cannot be expected to penetrate the intaglio printing ink composition. The intaglio printing on the base material is effective.

In addition, the intaglio printing ink composition described above can be used for intaglio printing with a thick ink coating even on a base material in which infiltration of the intaglio printing ink composition such as paper and plastic sheet cannot be expected. Therefore, it is possible to produce an anti-counterfeit printed matter having a high security level.

 Embodiments of the present invention will be described. The ink composition for intaglio printing in the present embodiment comprises an ultraviolet curable composition, an oxidation polymerizable composition, a photopolymerization initiator, an oxidation polymerization catalyst, a polymerization inhibitor, and a pigment as essential components. It is manufactured by kneading by a generally known method using an apparatus such as a bead mill.

As a pigment used for the intaglio printing ink composition of the present embodiment, when the ultraviolet curable composition or the oxidation polymerizable composition is an acidic substance having a carboxyl group, a basic pigment such as calcium carbonate is used. Although it cannot be used, other neutral or acidic pigments used in generally known UV-curable ink compositions can be used. In the case where the ultraviolet curable composition or the oxidative polymerizable composition is a neutral substance having no carboxyl group, the pigment is not limited, and all of the pigments used in generally known ultraviolet curable ink compositions are used. it can. Also, generally known UV-curable ink compositions are difficult to mix in large amounts of pigments that easily absorb UV rays, but the intaglio printing ink composition of the present embodiment has the presence of an oxidation polymerizable substance. As a result, the inside of the uncured ink film is dried, so that even a pigment that easily absorbs ultraviolet rays can be blended in a large amount.

 The ink composition for intaglio printing according to the present embodiment is an ultraviolet ray composition by increasing the proportion of the oxidatively polymerizable composition with respect to the ultraviolet curable composition at the proportion of the ultraviolet curable composition and the oxidatively polymerizable composition. Since the curing shrinkage at the time of curing of the curing component can be suppressed, the adhesion to a base material that cannot be expected to penetrate the intaglio printing ink composition such as plastic is improved.

The ink composition for intaglio printing according to the present embodiment contains a compound component having a photopolymerizable double bond, whereby the film surface of the ink composition on the paper is cured by ultraviolet irradiation, and the uncured ink composition Since the compound having a photopolymerizable double bond is gradually polymerized by radicals generated by the oxidatively polymerizable composition and the oxidative polymerization catalyst, the ink inside can be completely dried.

Furthermore, the intaglio printing ink composition of the present embodiment is composed of an oxidative polymerization type intaglio printing composed of a vehicle mainly composed of a conventional dry oil since an acrylate having a large intermolecular interaction constitutes the main component of the vehicle. Compared with the ink composition for ink, the ink is difficult to separate, and accordingly, the printed image line becomes remarkably sharp and the image line quality can be improved. For this reason, even if the same intaglio plate surface is used, the ink film can be made thicker than when a conventional oxidation polymerization type intaglio printing ink composition is used.

In addition, the ultraviolet curable composition is preferably mainly composed of a water-soluble compound having a photopolymerizable double bond, but as a more preferable specific example, in the case of an aqueous wiping method, the photopolymerizable double bond is used. A water-soluble acrylate can be used as the water-soluble compound having a heavy bond.

More specifically, an acid acrylate having an hydroxyl group such as an acid anhydride addition acrylate of bisphenol A type epoxy acrylate, an acid anhydride addition acrylate of phenol novolac epoxy acrylate, or an acid anhydride addition acrylate of dipentaerythritol pentaacrylate is used. An acrylate having a carboxyl group to which an anhydride has been added or an acrylate having a carboxyl group to which an acid anhydride has been added to a urethane acrylate having a hydroxyl group, polyethylene glycol diacrylate, polypropylene glycol diacrylate, polyglycerin epoxy acrylate or polyacrylate Water-soluble acrylates such as glycerin polyacrylate or acryloylmorpholine can be used. The use of the polyglycerin polyacrylate described in Patent Document 2 (Japanese Patent Laid-Open No. 2002-38065) of the above-described prior art is more preferable for preventing blocking.

The oxidatively polymerizable composition is preferably a dry oil or a liquid material modified from a dry oil. As a more preferred specific example, a semi-dry oil such as soybean oil or rapeseed oil or a liquid material modified from a semi-dry oil is used. Can be used.

Further, it is preferable that the ultraviolet curable composition containing a compound having a photopolymerizable double bond as a main component is blended in an amount of not more than three times by weight with respect to the oxidative polymerizable composition. If the blending amount of the ultraviolet curable composition is further increased, the curing speed of the ink after printing is increased, which causes poor adhesion to the substrate. Moreover, when it mix | blends in the weight part of less than 1 time, the ultraviolet sclerosis | hardenability of the membrane | film | coat surface will fall and will cause a setback.

As the photopolymerization initiator used in the intaglio printing ink composition of the present embodiment, various commercially available photopolymerization initiators can be used, and these can be used alone or in combination of two or more. it can. The amount used varies depending on the type of photopolymerization initiator. Moreover, you may add photopolymerization start adjuvant, such as ethyl 4-dimethylaminobenzoate or isoamyl 4-dimethylaminobenzoate.

The oxidation polymerization catalyst used in the intaglio printing ink composition of the present embodiment uses metal compounds such as cobalt, manganese, lead and iron, cobalt borate, cobalt octylate, cobalt naphthenate and lead monoxide. can do.

As the polymerization inhibitor, a known polymerization inhibitor can be used, and the addition amount thereof is generally 100 to 1500 ppm, and varies depending on the kind of the polymerization inhibitor.

A method for producing a printed material using the intaglio printing ink composition obtained in the present embodiment is a method of printing by transferring the intaglio printing ink composition to a printing material, and as a printing material. Paper or plastic sheets can be used.

Next, with respect to a production example of an oxidation polymerizable composition used in an intaglio ink composition having good adhesion to the substrate of the present invention, a production example using soybean oil as a semi-drying oil or linseed oil as a drying oil And a comparative example is shown.

A glass four-necked flask was charged with 880 parts of soybean oil, 174.8 parts of glycerin, and 0.32 parts of lithium hydroxide, heated to 250 ° C. while flowing nitrogen, and maintained at 250 ° C. for 0.5 hours. After allowing to cool to 80 ° C. or lower, 295.26 parts of phthalic anhydride and 200 ml of xylene as an azeotropic solvent are added, heated at 230 ° C. for 5 hours while flowing nitrogen, and water is extracted from the azeotropic mixture of water and xylene. Only xylene was removed, and xylene was condensed back into the reaction system. Then, it heated at 230 degreeC, xylene in a reaction system was removed as much as possible, and the alkyd resin was obtained. The total acid value and half acid value of the obtained alkyd resin were 46.9 mgKOH / g and 44.1 mgKOH / g, respectively.

The total acid value is a numerical value measured by combining a carboxyl group generated by hydrolysis of an unreacted acid anhydride group and a carboxyl group in the condensate. The half acid value is a numerical value measured by combining a carboxyl group formed by reacting an unreacted acid anhydride group with ethanol and a carboxyl group in the condensate. That is, the difference between the total acid value and the half acid value indicates the amount of unreacted acid anhydride groups in the product.

A glass four-necked flask was charged with 880 parts of oil, 174.8 parts of glycerin, and 0.32 parts of lithium hydroxide, heated to 250 ° C. while flowing nitrogen, and maintained at 250 ° C. for 0.5 hours. . After allowing to cool to 80 ° C. or lower, 168.7 parts of phthalic anhydride and 200 ml of xylene as an azeotropic solvent are added, heated at 230 ° C. for 5 hours while flowing nitrogen, and water is removed from the azeotropic mixture of water and xylene. Only xylene was removed, and xylene was condensed back into the reaction system. Then, it heated at 230 degreeC, xylene in a reaction system was removed as much as possible, and the alkyd resin was obtained. The total acid value and half acid value of the obtained alkyd resin were 45.3 mgKOH / g and 42.7 mgKOH / g, respectively.

Next, an intaglio printing ink composition using the above-described two types of oxidative polymerization components was prepared using a three-roll mill in the following formulation example.

(UV curable composition)
A mixture of phenol novolac epoxy acrylate, tetrahydrophthalic anhydride, polyethylene glycol 400 diacrylate, dipentaerythritol monohydroxypentaacrylate and 4-methylhexahydrophthalic anhydride. Mixing amount 40.5%
(Oxidation polymerizable composition)
Oxidation polymerizable composition 17.5%
(Photopolymerization initiator)
Mixture of Irgacure 369 and Irgacure 907 (manufactured by Ciba Specialty Chemicals) 3.0%
(Oxidation polymerization catalyst)
Cobalt octylate 1.0%
(Polymerization inhibitor)
Methyl hydroquinone content 0.04%
(Pigment)
Permanent Carmine FB 7.0%
Hansa Yellow G, 5.0%
Carbon black content 6.0%
Barium sulfate content 20.0%

Printing was performed on a base material such as a plastic sheet, which cannot be expected to penetrate the printing ink composition, with the intaglio printing ink composition prepared using the above-described oxidation polymerization composition.

As an evaluation of adhesion to a substrate, an ink composition for intaglio printing in which an ultraviolet curable composition and an oxidatively polymerizable composition are in ratios of 80:20, 75:25, 70:30, 65:35, and 60:40, respectively. A printed material was prepared using the product, and adhesion was evaluated by a cross-cut test (JIS K-5600) to evaluate the degree of dropout of the ink composition for intaglio printing. The evaluation results are shown in FIG. Moreover, evaluation was also performed in blocking printed matter. The evaluation results are shown in FIG.

From the evaluation result of FIG. 1, it can be seen that the adhesion is improved as the proportion of the oxidation polymerization composition is increased, and from the evaluation result of FIG. 2, it is understood that the blocking resistance is improved as the ultraviolet curable composition is increased.

Furthermore, based on the above results, as an oxidative polymerization composition that improves adhesion to substrates such as plastics that cannot be penetrated by plastics, it is possible to use semi-dry oil, soybean oil and dry oil. It is found that soybean oil is preferable.

Moreover, as a blending ratio of the ultraviolet curing component and the oxidation polymerization component, an ink having a blending ratio of 75:25 to 65:35 shows a good result from the results of adhesion and blocking tests, and preferably 70: It can be seen that there are 30 inks.

EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to these, If it is in the range described in the claim, it can implement suitably.

Example 1 An alkyd resin was prepared using soybean oil as a semi-drying oil as an oxidative polymerizable composition of an ink composition for intaglio printing, and an ultraviolet curable composition comprising phenol novolac epoxy acrylate and tetrahydrophthalic anhydride. A mixture of polyethylene glycol 400 diacrylate, dipentaerythritol monohydroxypentaacrylate, and 4-methylhexahydrophthalic anhydride was used as a vehicle for an intaglio printing ink composition.

In addition, Irgacure 369 and 907 are used as a photopolymerization initiator, cobalt octylate is used as an oxidation polymerization catalyst, permanent carmine FB, Hansa Yellow G and carbon black A are used as pigments, and barium sulfate is used as an extender pigment in the following formulation table examples. The ink was mixed and used as a three-roll mill.

(Example of ink composition for intaglio printing)
UV curable composition 40.5%
Oxidation polymerizable composition 17.5%
Photopolymerization initiator compounding amount 3.0%
Oxidation polymerization catalyst 1.0%
Coloring pigment content 18.0%
Extender pigment 20.0%

Next, a printed matter was produced using a printing machine capable of performing intaglio printing. The base material at this time may be a plastic sheet that cannot be penetrated by ink, or may be a sheet that penetrates ink, for example, a mixture of paper and a plastic sheet. Here, a plastic sheet (made of polypropylene) was selected as a base material and printed.

When the adhesiveness of the printed plastic sheet was evaluated by a cross cut test (JIS K-5600), the adhesiveness to the substrate was satisfactory. From this, it can be seen that a printing image line can be applied to a base material on a plastic sheet or the like for which no penetration of the printing ink composition can be expected, so that a forgery-preventing printed matter having a high security level can be produced.

(Example 2) An alkyd resin was prepared using an oil of dry oil as an oxidatively polymerizable composition of an ink composition for intaglio printing, and an ultraviolet curable composition comprising phenol novolac epoxy acrylate and tetrahydrophthalic anhydride. A mixture of polyethylene glycol 400 diacrylate, dipentaerythritol monohydroxypentaacrylate, and 4-methylhexahydrophthalic anhydride was used as a vehicle for an intaglio printing ink composition.

In addition, Irgacure 369 and 907 are used as a photopolymerization initiator, cobalt octylate is used as an oxidation polymerization catalyst, permanent carmine FB, Hansa Yellow G and carbon black A are used as pigments, and barium sulfate is used as an extender pigment in the following formulation table examples. The ink was mixed using a bead mill.

(Example of ink composition for intaglio printing)
UV curable composition 40.5%
Oxidation polymerizable composition 17.5%
Photopolymerization initiator compounding amount 3.0%
Oxidation polymerization catalyst 1.0%
Coloring pigment content 18.0%
Extender pigment 20.0%

Next, a printed matter (1) was produced using the above-mentioned intaglio ink. This printed matter (1) will be described with reference to FIG. First, printing including intaglio printing or the like is performed on the substrate, and the hologram (2) is attached to one place of the printed material. The printed image line (3) was applied to the hologram (2) application portion of the printed material (1) with the intaglio ink of the present invention.

  As a peel test for the printed matter of Example 1 and the comparative example obtained by the above-described printing, a cellophane tape is applied to the image line portion on the hologram, and a load of 1 kg is applied by a Gakushoku type fastness friction tester manufactured by Tester Sangyo Co., Ltd. After giving, the degree of omission was evaluated.

  The results of the above test will be described with reference to FIGS. The image line (3) printed with the comparative ink having a blending ratio of the ultraviolet curing component and the oxidation polymerization component of 80:20 completely peels off to the adhesive tape (6) as shown in FIG. All the top lines were missing (Figure 4). On the other hand, the image line (3) printed with the ink of Example 1 in which the blending ratio of the ultraviolet curable component and the oxidation polymerization component was 70:30 shows that the image line peeling to the adhesive tape (6) is as shown in FIG. It was not seen at all and adhesion was good.

The printed matter (1) described above is a printed matter (1) that is an image of a banknote, but it can add value to the hologram (2), which is one of the anti-counterfeiting techniques. The current Bank of Japan banknotes has hologram anti-counterfeiting technology, but if you try to counterfeit the Bank of Japan banknotes, you can substitute a glossy sticker such as aluminum foil. It is done.

Therefore, by printing (3) the intaglio printing ink composition of the present invention on the hologram (2), visibility and tactile sensibility are improved and only a glossy seal such as aluminum foil is applied. Since the intaglio printing (3) with high tactile sensation printed on the hologram (2) cannot be reproduced, the anti-counterfeiting power of the printed matter (1) is enhanced.

(Example 3) An alkyd resin was prepared using an oil of dry oil as an oxidatively polymerizable composition of an ink composition for intaglio printing, and an ultraviolet curable composition comprising phenol novolac epoxy acrylate and tetrahydrophthalic anhydride. A mixture of polyethylene glycol 400 diacrylate, dipentaerythritol monohydroxypentaacrylate, and 4-methylhexahydrophthalic anhydride was used as a vehicle for an intaglio printing ink composition.

In addition, Irgacure 369 and 907 are used as a photopolymerization initiator, cobalt octylate is used as an oxidation polymerization catalyst, permanent carmine FB, Hansa Yellow G and carbon black A are used as pigments, and barium sulfate is used as an extender pigment in the following formulation table examples. After mixing, an ink was prepared using a three roll mill.

(Example of ink composition for intaglio printing)
UV curable composition 53.0%
Oxidation-polymerizable composition, 5.0%
Photopolymerization initiator compounding amount 3.0%
Oxidation polymerization catalyst 1.0%
Coloring pigment content 18.0%
Extender pigment 20.0%

Next, the adhesion ratio of the UV curable component and the oxidation polymerization component prepared by the above blending is 80:20, and the adhesion ratio of the UV curing component and the oxidation polymerization component is 70:30. A printed matter using a good intaglio printing ink composition will be described with reference to FIGS. This printed matter is a pair ink using the intaglio printing ink composition having good adhesion of Example 1 and the intaglio printing ink composition having poor adhesion as described above, and a mixture of paper and plastic sheet. Printing was performed using the packing box as a printing substrate.

The packing box is sealed with tapes (6) such as gum tape. Once the seal is cut, the ink (4) with poor adhesion peels off to the tape side, but the ink (5) with good adhesion remains on the box side. Since it is possible to provide printed matter that informs the user of the completion, there is an effect of suppressing crimes such as content replacement.

The ink of the present invention is different in the blending ratio of the ultraviolet curing component and the oxidation polymerization component depending on the base material such as plastic, and it can be easily assumed that the blending ratio is changed according to the base material. As long as it is within a certain range, it can be carried out as appropriate, and is not limited to the above-described embodiments.

The figure which compared the ratio of a UV curable composition and an oxidation polymerizable composition, two kinds of modified oils of an oxidation polymerizable composition, and evaluated adhesion to a plastic sheet. The ratio of the UV curable composition and the oxidative polymerizable composition and the blocking evaluation of the two types of modified oils of the oxidative polymerizable composition were evaluated. Schematic diagram of printed matter in Example 2 The figure which shows the printed matter after tape peeling in the printed matter of a comparative example The figure which shows the tape peeling result of the printed matter printed with the ink of the comparative example The figure which shows the tape peeling result of the printed matter printed with the ink of Example 2. Schematic diagram of printed matter in Example 3 The figure which shows the adhesive tape after peeling in Example 3

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printed matter 2 Hologram 3 Intaglio printing image line 4 Adhesive printing image line 5 Printing image line by the ink of this invention 6 Adhesive tape

Claims (5)

An intaglio printing ink composition comprising at least an ultraviolet curable composition, an oxidation polymerizable composition, a photopolymerization initiator, an oxidation polymerization catalyst, and a polymerization inhibitor, wherein the oxidation polymerizable composition is an alcoholic hydroxyl group and A liquid material composed of an acid anhydride that reacts and esterifies and a polyhydric alcohol and is modified from 100 or more iodinated oils or fats and oils that are 100 or more iodinated, and the ultraviolet curable composition and the oxidative polymerization An ink composition for intaglio printing, wherein the composition ratio of the adhesive composition is in the range of 75:25 to 65:35 (% by weight:% by weight). A printed material, wherein the substrate is printed using the intaglio ink composition according to claim 1. The printed matter according to claim 2, wherein the base material cannot be expected to penetrate the ink composition for intaglio printing. The printed material according to claim 2 or 3, wherein the base material is plastic, metal, wood, ceramics, or glass. Use of the printed matter according to claim 2 as an anti-counterfeit printed matter and / or an authenticity printed matter.

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