JP2007144692A - Printed matter with scratch hiding layer and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide printed matter with a scratch hiding layer, the valuable information printed part of which is hidden with a scratch hiding layer as hidden in a lottery ticket, a game card or the like, more minutely the valuable information printed part is recognized through the scratching-off (scraping down) the scratch hiding layer with a coin or the like in order to prevent counterfeiting and forgery. <P>SOLUTION: In this printed matter with the scratch hiding layer, in which the valuable information printed part on a sheet-like base material is hidden by ink (scratch) with scratching properties (peelability), at least an antifalsifying layer is set to be provided beneath the valuable information printed part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a printed matter with a scratch concealment layer in which a valuable information printing unit such as a lottery ticket or a game card is concealed with a scratch concealment layer. More specifically, the present invention relates to a printed matter with a scratch concealment layer that recognizes a valuable information printing unit by scratching off (scratching off) the scratch concealment layer with a coin or the like to prevent forgery or forgery.

  Prints with a scratch concealing layer are inks in which images such as letters and designs are printed on a printing substrate and contain a material that is harder than the metal of the coin (for example, white pigments such as titanium oxide, aluminum oxide, silicon dioxide, and chromium oxide). Printed by the composition. Then, when the white ink film is scratched with a coin, the printed image is visually observed by the metal scraped off from the coin.

  Conventionally, for example, in an instant lottery ticket or a game card, the valuable information printing part such as “winning”, “missing” or a picture corresponding thereto has a concealing property and a scratch-off property (ease of scratching). And concealed with a rubber-based ink that has cohesive failure.

  And when the customer who purchased it is used, the scratch printed matter which scratches off with a coin etc. and visually recognizes the valuable information printing part is known, and is used in various fields such as the lottery ticket and the game.

  As a printed matter to which the scratch concealing layer is applied, for example, as shown in the laminated sectional view of FIG. 5, a valuable information printing unit (112) such as a pattern, characters, numbers, etc. on a base material (110) made of paper or the like. Is printed.

  And the easy peeling layer (114) by a transparent peeling varnish etc. is formed so that valuable information printing part (112) may be covered. Further, a scratch concealment layer (120) is provided on the easy release layer (114).

  A customer who purchases this scratch printed material scratches off the scratch concealment layer (120) with a coin, a nail or the like, and prints valuable information such as “win”, “disengaged”, etc. (112) can be visually recognized through the transparent easily peelable layer (114).

  However, for example, when the base material (110) is a general sheet, the shade of the valuable information printing unit (112) can be seen through when the printed material is exposed to strong light and viewed through the opposite side. There was a problem that it was not a valuable information printing unit (112) and was not reliable in terms of security.

  As a method for solving this problem, for example, as shown in the laminated sectional view of FIG. 6, a method of providing a watermark prevention layer (124) on the back surface of the base material (110) by printing with a gray-based ink or the like is used. Yes.

  Furthermore, as shown in FIG. 7, the printing paper (110) sandwiched with an aluminum foil (121) having a thickness of 7 to 10 μm at the center shields the strong light from the back surface, and the valuable information printing unit (112). A great number of scratch prints in which shadows cannot be seen through have been proposed and used.

  In addition, after scratch-off (scratching off) the scratch printed material, there are many problems that the “separated” printed material is counterfeited / tampered and illegally used.

  As an illegal use, for example, as shown in FIGS. 8 to 12, FIG. Then, different numbers are cut out of the printed material having different numbers as shown in FIG. 9 (FIG. 10).

  Further, as shown in FIG. 11, the “win” printed material is tampered with by cutting and pasting a number “win” from another printed material (FIG. 12) to the cut printed material.

  There are known such anti-fraud printed matter and such verification verification system (see, for example, Patent Document 1) of securities that are difficult to be illegally used by forgery and alteration.

  As shown in FIG. 13, the fraud prevention printed matter 300 includes securities such as gift certificates and lotteries, a management symbol 130 for managing the securities, and an arithmetic process for the management symbol using an encryption key. An encrypted confirmation symbol 131 is printed.

Prior art documents are shown below.
JP 2000-1070 A (1 page)

  The fraud prevention printed matter is unsuitable for mass production and has a problem that the manufacturing cost increases.

  Furthermore, there is a problem that expensive equipment such as equipment for performing arithmetic processing or a system for verifying verification must be provided.

  In addition to the printing, the fraud-proof printed matter has a problem that the operation process such as a calculation processing work is complicated and a lot of manpower is required.

  The present invention has been made in view of the above-described conventional problems, and the problem is that mass production is easy and inexpensive.

  Moreover, it can be manufactured and used without using expensive equipment and facilities. Then, it is possible to know whether it has been counterfeited / falsified and used illegally with an inexpensive instrument or device.

  Furthermore, many man-hours are not required when manufacturing, and it can be easily performed only with a known printing machine.

In order to solve the above problems, the invention according to claim 1 of the present invention provides:
It is a printed matter with a scratch concealment layer in which the valuable information printing part is concealed by the ink having scratch properties on the sheet-like substrate,
It is a printed matter with a scratch concealment layer, characterized in that at least a forgery preventing layer is provided on a part of the valuable information printing part or at the lower part of the entire surface.

Next, the invention according to claim 2 of the present invention is as follows.
2. The printed matter with a scratch concealment layer according to claim 1, wherein the anti-forgery layer is formed with solid printing, letters, logo marks, illustrations, fine prints, or micro letters by thermal ink or temperature ink. is there.

The invention according to claim 3 of the present invention is
2. The anti-forgery layer has at least one of solid printing, letters, logo marks, illustrations, fine prints, and micro letters formed of functional ink including infrared absorbing ink. The printed matter with a scratch concealing layer.

Next, the invention according to claim 4 of the present invention is
A method for producing a printed matter with a scratch concealment layer in which a valuable information printing part is concealed by an ink having a scratch property on a sheet-like substrate,
A method for producing a printed matter with a scratch concealment layer, wherein a forgery prevention layer is formed with at least one of a thermal ink, a temperature indicating ink, and an infrared absorbing ink at a part of the valuable information printing portion or at the bottom of the entire surface.

  The printed matter with a scratch concealing layer and the method for producing the same according to the present invention can be easily produced with only a known printing machine without requiring complicated work steps and many manual processes. And it is cheap and easy to mass-produce.

  In addition, it is possible to know at a glance whether or not it is counterfeited / falsified and used illegally with an inexpensive instrument or device. And it is easy to persuade a fraudulent user that it is counterfeiting or falsified.

  A printed matter with a scratch concealing layer and a method for producing the same according to the present invention will be described in detail below with reference to the drawings.

  FIG. 1 shows a form of an embodiment of a printed matter with a scratch concealing layer of the present invention. (A) shows a state in which the concealing layer is scratched off (scratched off) and a forgery preventing layer is identified. It is explanatory drawing shown. (B) is the schematic which shows the cross section of the printed matter with a scratch concealment layer of this invention.

  As shown in FIG.1 (b), the printed matter (10) with a scratch concealment layer of the present invention comprises a valuable information printing part (2) and a valuable information printing part (2) on a sheet-like substrate (1). It is formed from a scratch concealment layer (3) to conceal. Then, at the contact portion of the valuable information printing part (2), as shown in FIG. 1 (a) or (b), a forgery prevention layer (4) is formed on a part of the valuable information printing part (2) or at the lower part of the entire surface. Has been.

  For example, the “winning” of the printed matter (10) with the scratch concealment layer is one in which the numbers of the valuable information printing section (2) are three, as shown in FIG. However, when only one number is different as shown in FIG. 4, “5” is cut off, and “1” of the other printed matter with scratch concealment layer (10) is pasted, and a “hit” scratch concealment layer is attached. A printed product (10) is obtained.

  In order to prevent unauthorized use by falsification and falsification, the “hit” portion of the printed matter with a scratch concealment layer of the present invention (10), as shown in FIG. A forgery-preventing layer (4) is formed in which the letters "per hit per hit" are applied with heat-sensitive ink, temperature indicating ink, infrared absorbing ink or the like.

  For this reason, it is easy to cut and paste from other “detached” printed materials with a scratch concealment layer (10) by using a tool or an inexpensive device that identifies that there is no “winning hit” character at the bottom of the number. Identified. And it turns out immediately that it is a printed matter (10) with a scratch concealment layer used illegally, and use is prevented.

  Although not shown in the figure, an easy peeling layer is provided to serve to ensure scratch-off of the scratch concealment layer (3) that conceals the valuable information printing part (2) and protect the valuable information printing part (2). It is common.

  The easy release layer is applied in a scale of 3 to 10 μm. And as the easily peelable layer, for example, a peeling cloth obtained by adding 5% or less of silicon or wax (polyethylene wax or the like) as an additive to polyurethane / acrylic resin, polyamide resin, or nitrocellulose resin can be mentioned.

  Moreover, an easy peeling layer is formed by partial coating or whole surface coating by a screen printing method, an ink jet method, a gravure printing method, or the like using this peeling cloth (ink).

  Further, the ink forming the scratch concealment layer (3) constituting the printed matter (10) with the scratch concealment layer of the present invention is a rubber-based natural resin (natural rubber, hydrochloric acid rubber, etc.) having a cohesive failure (nodule) property, diene Component for transferring and fixing pigment resin (printing surface to the printing surface) such as resin (polybutadiene, styrene, butadiene copolymer, acrylonitrile / butadiene copolymer, polyisoprene, polychloroprene, etc.), acrylic resin, and vinyl resin ).

  Further, the scratch concealment layer (3) is provided with a metallic fine powder (aluminum powder, brass fine powder, copper fine powder, etc.) as a colorant and oxidation thereof in order to obtain concealability of the valuable information printing part (2). It contains 40-60% by weight of fine powder.

  Moreover, in order to improve the concealment property of a sheet-like base material (1) and a valuable information printing part (2), you may contain 1-2% of barium sulfate, calcium carbonate, etc.

  By configuring the scratch concealing layer (3) from the above composition, both printability and scratch properties can be satisfied.

  The scratch concealing layer (3) is formed by printing or coating the above-mentioned composition diluted with a solvent on the sheet-like substrate (1).

  The printing is partially or entirely applied to a thickness of 3 to 10 μm by screen printing or gravure printing. The screen printing method is preferable.

  The coating is not particularly limited, such as a roll coater, an air knife coater, a metering bar coater, a fountain blade coater, a bevel blade coater, a short dwell coater, or a curtain coater, but in a sheet form using any appropriate coating machine. It is applied on the substrate (1).

  Further, although not shown in the drawing, a protective layer is formed on the scratch concealment layer (3) depending on the method of use or use of the printed matter with scratch concealment layer (10).

When the protective layer is formed, for example, phenol resin, xylene resin, urea resin, melamine resin, ketone resin, alkyd resin, polyamide resin, acrylic resin, polyvinyl chloride resin, vinyl chloride resin, vinyl chloride / vinyl acetate Printing is performed using an ink composition having a vehicle such as a polymer resin, polyvinyl acetate resin, polyvinyl alcohol resin, polyvinyl butyral resin, polystyrene resin, epoxy resin, or polyurethane resin.

  Then, the resin system, the thickness, and the like are selected so that the scratch concealing layer (3) below the protective layer is easily peeled off when a certain level of friction force is applied and is not scratched in a storage environment.

  Further, the valuable information printing unit (2) constituting the printed matter (10) with the scratch concealment layer according to the invention includes a gravure printing method, an offset printing method, a letterpress printing method, an ink jet method, a flexographic printing method, a screen printing method, and the like. Any one of the printing methods is selected as appropriate.

  The offset printing ink uses a synthetic resin or a vehicle combined with a drying oil or a high-boiling solvent, and the composition is adjusted according to various conditions such as gloss, friction resistance, setability, and drying time. A known ink is used in consideration of interfacial suitability related to the balance on the plate surface.

  In the case of gravure printing, additives such as various pigments, extender pigments and plasticizers, desiccants, stabilizers, etc. to ink binder resins such as urethane, acrylic, nitrocellulose, rubber and vinyl chloride. A known ink to which is added is used.

  Moreover, the sheet-like base material (1) constituting the printed matter with scratch concealing layer (10) of the above invention shines strong light on the printed matter with scratch concealing layer (10), and the shadow of the valuable information printing portion from the opposite surface. Is not particularly transparent plastic, paper, synthetic paper, metal foil, aluminum foil, or a composite thereof, and is not particularly limited.

  When using the paper, depending on the purpose or method of use of the printed material (10) with a scratch concealment layer, or the environment in which it is used, for example, ivory paper, postcard, double-sided card paper, Manila cardboard, white ball Ordinary paperboard, such as some white paperboard, can also be used.

  Further, paper using waste paper as the intermediate layer of paper, or lower grade paper such as yellow balls, chip balls, colored balls (double-sided craft balls, single-sided craft balls, etc.) can be used.

  Also, depending on the purpose or method of use or the environment in which the paper is used, paper having water resistance, heat resistance, chemical resistance, etc., is used.

  As a method for imparting water resistance, oil resistance, heat resistance or chemical resistance to the paper, there are a method in which the paper is processed during papermaking and a method in which the paper that has been processed is impregnated or coated.

  For example, the water-proofing agent added by the method used when paper is processed is usually an internally added water-proofing agent that is internally added to the pulp suspension before papermaking. As a wet paper strength enhancer, urea-formaldehyde resin, melamine N-formaldehyde resin, epoxidized polyamide resin, polyethyleneimine resin, dialdehyde starch, glyoxalized polyacrylamide resin.

  The amount of the water-resistant agent added varies depending on the type of pulp to be used, the type of chemical, and the intended water resistance.

  In addition, as secondary processing chemicals that impart water resistance to papers that have been processed, waxes such as carnauba wax, baraffin wax, polyethylene wax, etc., which have an excellent balance in price or performance, are often used. .

  Further, a polymer solution or emulsion such as polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, ethylene-vinyl acetate copolymer, vinylidene chloride-vinyl acetate copolymer insoluble in water is used.

  Further, in order to impart oil resistance to paper, it is usually necessary to make the sea surface tension of the processed surface smaller than the surface tension of the oily substance.

  A chemical having such a function is referred to as an oil-resistant agent, and generally a fluorine-based paper such as one using a fluorine compound such as a perfluorinated hydrogen acrylate or a phosphate ester is generally known as an oil-resistant paper. It is treated with an oil resistant agent.

  In addition, when processing the above-mentioned paper-processed paper with a water-proofing agent or oil-proofing agent, a roll coater, an air knife coater, a metering bar coater, a fountain blade coater, a bevel blade coater, a short dwell coater, a curtain coater, etc. are particularly limited. However, the coating is applied to the front side, the back side, or both sides of the paper using any suitable coating machine.

  Moreover, when sandwiching an aluminum foil on paper, the thickness of the aluminum foil is 6 to 12 μm. And as a material of aluminum foil, the O material (soft material) of an aluminum-iron type alloy is used. And, it is desirable that the iron content is 0.3 to 9.0%, preferably 0.7 to 2.0%.

  In addition, aluminum produced by cold rolling changes its flexibility, waist strength and hardness under annealing (so-called annealing treatment) conditions, but aluminum is slightly more than the so-called hard-treated product that is not annealed. Alternatively, flexible aluminum that has been completely annealed is preferred.

  What is necessary is just to select suitably the softness | flexibility of the said aluminum, the strength of a waist, the degree of hardness, ie, the conditions of annealing, according to workability (laminate processing etc.). For example, in order to prevent wrinkles and the like, it is desirable to use annealed flexible aluminum according to the degree of processing.

  Although not shown in the figure, a transparent film is usually formed on the sheet-like substrate (1). Examples of the transparent film include polyethylene resin, polypropylene resin, polyvinyl chloride resin, polyvinylidene chloride resin, polyvinyl alcohol resin, polyethylene terephthalate resin, polybutylene terephthalate resin, polyethylene naphthalate-isophthalate copolymer resin, polymethyl methacrylate. A single or laminated film such as acrylic resin such as resin, polyurethane resin, polyamide resin, cellulose triacetate resin, cellophane, polystyrene resin or polycarbonate resin is used.

  In addition, the anti-forgery layer (4) constituting the printed matter (10) with a scratch concealing layer of the invention is not printed with thermal ink, temperature ink, or infrared absorbing ink, and is solidly printed, letters, logo marks, illustrations, fine prints. A pattern, a micro character, or the like is formed.

  As the invisible heat-sensitive ink used for the anti-forgery layer (4), a known ink that develops a predetermined color depending on the heating temperature can be used.

The thermal ink is printed by appropriately selecting any one of printing methods such as a gravure printing method, an offset printing method, a relief printing method, an ink jet method, a flexographic printing method, and a screen printing method.

  Next, the properties of the known temperature indicating ink used for the anti-forgery layer (4) will be briefly described. This temperature ink is obtained by mixing special substances that solidify and melt with high and low temperatures into various color pigments, and binding these special substances contained in microcapsules having a particle size of 3 to 10 μm with a special binder. .

  Furthermore, this temperature indicating ink has the property that it melts when the temperature rises and reaches a specified temperature, and becomes transparent when it changes into a gel, and the temperature range of -15 ° C to + 60 ° C is settable. Yes.

  In addition, as the temperature indicating ink, an inorganic ink in which the metal complex Mg is dispersed in a highly heat-resistant silicone resin or a highly light-resistant acrylic resin vehicle, or a liquid crystal in which a thermochromic liquid crystal is microencapsulated and dispersed in the vehicle. Of the system. Furthermore, an organic type in which a microcapsule containing three components of a developer, a color former (coloring agent), and a solvent (desensitizer) is prepared and dispersed as a pigment in a vehicle can be used.

  Examples of the developer include phenols (p-chlorophenol, pt-butylphenol, bisphenol A, bisphenol F, hydroquinone monomethyl ether, methyl p-oxybenzoate, etc.), carboxylic acids (caproic acid, octylic acid, etc.) , Phenylacetic acid, acidic phosphoric acid ester; and salts thereof.

  The color former (coloring agent) is an electron-donating color-forming organic compound, such as diaryl phthalides, polyaryl carbinols, leuco auramines, acyl auramines, indolines, spiropyrans, Aryl auramines and rhodamine B ramtams can be mentioned.

  Furthermore, examples of the solvent (desensitizer) include esters (eg, n-butyl stearate, stearyl 2-methylbenzoate, cetyl 4-t-butylbenzoate, behenyl 4-cyclohexylbenzoate), alcohols (stearyl). Acid amides), ketones (dioctyl ketone, benzyl stearyl ketone phenyl octyl ketone, etc.), sulfides (distearyl sulfide, etc.).

  Next, in the case where unevenness occurs in the forgery preventing layer (4) portion where the thermal ink or the temperature indicating ink is formed and in the portion where the ink is not formed, the forgery preventing layer (4) is formed as shown in FIG. A thickness adjusting layer (5) similar to the thickness of the anti-forgery layer (4) can be provided in the portion that is not. And the valuable information printing part (2) is provided in the upper surface.

  The thickness adjusting layer (5) is solid, printed with letters, logo marks, illustrations, strips, or micro letters by a coating agent such as visible ink or varnish, or a coating agent such as invisible ink or bisque. Etc. are formed.

  Examples of the forming method include a gravure printing method, an offset printing method, a relief printing method, an ink jet method, a flexographic printing method, and a screen printing method. As the coating agent such as ink or fountain, a known ink or coating agent used in each of the printing methods is used.

Next, FIG. 3 shows another embodiment of the printed matter with a scratch concealing layer of the present invention. FIG. 3 (a) shows that the scratch concealing layer is scratched off (scratched off), and further a forgery preventing layer is formed. It is explanatory drawing which shows the state identified. (B) is the schematic which shows the cross section of the printed matter with a scratch concealment layer of this invention.

  As shown in FIG. 3 (b), the printed matter (10) with a scratch concealing layer of the present invention has a printing layer (5) visible on the upper side of the sheet-like substrate (1). And the valuable information printing part (2) and the scratch concealment layer (3) which conceal this valuable information printing part (2) are formed in order on the upper side of the printing layer (5).

  Further, as shown in FIG. 3 (a), the printed matter (10) with a scratch concealment layer of the present invention is “struck” in the same manner as FIG. 1 (a) by scratching off (scratching off) the scratch concealment layer. The “deletion” is formed so that it can be easily identified by the valuable information printing unit (2).

  For example, “success” of the printed matter (10) with the scratch concealment layer is one in which the numbers of the valuable information printing section (2) are three, as shown in FIG. However, when only one number is different as shown in FIG. 4, “5” is cut off, and “1” of the other “detached” printed matter (10) with scratch concealment layer is cut and pasted. "A printed matter (10) with a scratch concealing layer" is obtained.

  In order to prevent unauthorized use by forgery / falsification, the “printed” (5) portion of the printed matter with a scratch concealment layer of the present invention (5) is coated with a functional ink to prevent the forgery layer ( 4) is formed.

  And, it is easy to identify whether the printed matter with scratch concealment layer (10) cut and pasted from the other printed matter with scratch concealment layer (10) is forged or altered with functional ink containing infrared absorbing ink or the like. I understand.

  As the functional ink, in addition to the infrared absorbing ink described above, for example, fluorescent ink, swelling ink, phosphorescent ink, phosphorescent ink, photochromic ink, electroluminescent ink, metameric ink, color shift ink, pearl ink, Examples include metallic gloss ink, magnetic ink, conductive ink, insulating ink, biocode ink, radiation ink, water / oil repellent ink, foamed ink, perfume ink, and ink-erasing reaction ink. And by using the ink singly or in combination, it is possible to prevent illegal use such as various and multifunctional counterfeiting / tampering.

  The well-known infrared absorbing ink that is not visible for use in the anti-forgery layer (4) is generally not shown in the figure, but is solid by a recognition device having a reading unit, an image signal generation unit, and a display as a display means. Prints, letters, logo marks, illustrations, fine prints, micro letters, etc. are imaged.

  For example, when the user of the recognition device aligns the reading part of the reading unit close to the area where solid ink printing, characters, logo marks, illustrations, thin prints, or micro characters are formed with infrared absorbing ink, Infrared light is irradiated from the infrared light source inscribed in the portion to the region formed of the infrared absorbing ink.

  Then, the reflected light forms an image on a light receiving element such as a CCD optical sensor provided in the reading unit through a light transmitting filter that transmits only light in the infrared region. At this time, the infrared light irradiated to the region formed with the infrared absorbing ink is absorbed, and the infrared light irradiated to the other region is reflected and forms an image on the light receiving element through the translucent filter. .

Solid printing with the infrared absorbing ink, formation of characters, logo marks, illustrations, thin prints, micro characters, etc., gravure printing method or offset printing method, letterpress printing method, ink jet method, flexographic printing method, screen printing method Any one of the printing methods is selected as appropriate.

Examples of infrared absorbing ink materials include cyanine dyes, phthalocyanine dyes, naphthoquinone dyes, triphenylmethane dyes, anthraquinone dyes, and dyes having an absorption region in the infrared region. Or a cyan filter glass (containing Cu ²⁺ ).

Specifically, for example, a material made of glass powder and vehicle containing Yb ³⁺ (ytterbium ion) at a weight ratio of 0.5 to 50% is used.

  This glass powder is manufactured by mixing a glass material and an ytterbium source such as ytterbium oxide, melting the glass raw material, cooling the melt, and then pulverizing.

Examples of the glass material include oxidation of SiO ₂ , Al ₂ O ₃ , P ₂ O ₅ , Li ₂ O, Na ₂ O, BaO, Ba ₂ O ₃ , MgO, ZnO, K ₂ O, PbO, B ₂ O _{3 and the} like. Glass, BaF ₂ , BeF ₂ , KF, CaF ₂ , NaF, GdF ₃ , ZrF ₄ , AIF ₃ , SnF ₂ , HfF _{4 and} other fluoride glasses, S, Se, S-Se, Se-Te, S- A chalcogen glass such as Se-Te, P-Se, or As-Ss is used.

  Further, as the vehicle, a vehicle having no absorption region in the visible light region having a wavelength of 400 to 700 nm is used. From the viewpoint of high thermoplasticity (low thermosetting property), for example, natural resin (for example, , Protein, rubber, cellulose, shellac, copal, starch, rosin, etc.), vinyl resin, novolac type phenol resin, resole type phenol resin, urea resin, melamine resin, polyurethane resin, epoxy, unsaturated polyester It is done. Preferably, a photopolymerization curable type or electron beam curable type acrylic resin which is difficult to contaminate because no solvent is required is used.

  The photochromic ink appears to be white only under ordinary illumination, but suddenly develops color by sunlight (ultraviolet part) and returns to colorless in a short time by blocking.

  The phosphorescent ink absorbs and accumulates light rays from the sun and fluorescent lamps, and gradually emits and emits light in the dark.

  Furthermore, when the swelling ink comes into contact with water, it absorbs up to about 300 times the water and swells and retains water.

  In addition, as the material of the fluorescent ink, for example, an inorganic fluorescent pigment having a particle size of 0.7 to 50 μm, an organic fluorescent pigment, a vehicle, or the like containing 15 to 45% by weight is used.

  The inorganic fluorescent pigment is excellent in durability and weather resistance, for example, mainly composed of crystals such as oxides, sulfides, silicates, tungstates such as Ca, Ba, Mg, Zn, Cd, Mn, It is a pigment obtained by adding a metal element such as Zn, Ag, Cu, Sb, Pb or a rare earth element such as lanthanoids as an activator.

In addition, since organic fluorescent pigments can be made small in particle size, they are easy to make ink. And compounds having a benzene ring such as anthracene.

  The vehicle is the same as that described as the material of the infrared absorbing ink described above, for example.

  Examples of the functional ink such as an infrared absorbing ink used for the “win” printing layer (5) include a gravure printing method, an offset printing method, a letterpress printing method, an ink jet method, a flexographic printing method, a screen printing method, and the like. It is formed by.

  The printing layer (5) is formed with solid printing, characters, logo marks, illustrations, fine patterns, micro characters, or the like. Then, it can be easily understood whether the product is counterfeited by a counterfeit or the like using an identification tool or device.

  Further, as described above, the scratch concealment layer (3) for concealing the valuable information printing part (2) is secured in the scratch-off and the valuable information printing part (2) is protected, although not shown in the figure. It is common to provide an easy release layer. And the said easily peelable layer is apply | coated with a heap of 3-10 micrometers.

  Furthermore, the easy peeling layer includes, for example, a peeling cloth obtained by adding 5% or less of silicon or wax (polyethylene wax or the like) as an additive to polyurethane / acrylic resin, polyamide resin, or nitrocellulose resin.

  By using the peeling varnish (ink), an easy peeling layer is formed by the whole surface or partial coating by a screen printing method, an ink jet method, a gravure printing method or the like.

  The ink forming the scratch concealing layer (3) constituting the printed matter with a scratch concealing layer (10) of the present invention is a rubber-based natural resin (natural rubber, hydrochloric acid rubber, etc.) having cohesive failure (nodule), diene Components for transferring and fixing pigment resins to the printing surface (polybutadiene, styrene, butadiene copolymer, acrylonitrile-butadiene copolymer, polyisoprene, polychloroprene, etc.), acrylic resins, and vinyl resins ).

  Further, the scratch concealment layer (3) is provided with a metallic fine powder (aluminum powder, brass fine powder, copper fine powder, etc.) as a colorant and oxidation thereof in order to obtain concealability of the valuable information printing part (2). It contains 40-60% by weight of fine powder.

  Moreover, in order to improve the concealability of a base material (1) and a valuable information printing part (2), you may contain 1-2% of barium sulfate, calcium carbonate, etc.

  By configuring the scratch concealing layer (3) from the above composition, both printability and scratch properties can be satisfied.

  The scratch concealment layer (3) is formed by printing or coating the above composition diluted with a solvent on the substrate (1).

  The printing is partially or entirely applied to a thickness of 3 to 10 μm by screen printing or gravure printing. The screen printing method is preferable.

The coating is not particularly limited, such as a roll coater, an air knife coater, a metering bar coater, a fountain blade coater, a bevel blade coater, a short dwell coater, or a curtain coater. (1) Applied on top.

  Although not shown in the figure, a transparent film is usually formed on the substrate (1). As the transparent film, as described above, for example, polyethylene resin, polypropylene resin, polyvinyl chloride resin, polyvinylidene chloride resin, polyvinyl alcohol resin, polyethylene terephthalate resin, polybutylene terephthalate resin, polyethylene naphthalate-isophthalate copolymer A simple substance or laminated film such as resin, acrylic resin such as polymethyl methacrylate resin, polyurethane resin, polyamide resin, cellulose triacetate resin, cellophane, polystyrene resin or polycarbonate resin is used.

  Furthermore, in order to make it difficult to see through the shading of the valuable information printing section (2), the single or laminated film can be applied in white.

  When the simple substance or laminated film is applied in white, white pigments such as titanium oxide and / or barium sulfate, silicon oxide, aluminum oxide, magnesium oxide, calcium carbonate, kaolin, talc and the like are used for the resin. It is done.

  And a stabilizer, antioxidant, a ultraviolet absorber, a fluorescent whitening agent, etc. can also be contained as needed.

  The printed matter with a scratch concealment layer of the present invention is not only excellent as a lottery ticket or a game card used by concealing the valuable information printing part with a scratch concealment layer, but also in the pharmaceutical field and precision such as tablets, medical members or precision members. It is a wonderful invention that can be used in a wide range of fields such as machinery.

The form of one Example of the printed matter with a scratch concealment layer of this invention is shown, (a) is explanatory drawing which shows the state by which the concealment layer is scratched off (scratching off) and the forged layer is identified. . (B) is the schematic which shows the cross section of the printed matter with a scratch concealment layer of this invention. The form of the other one Example of the printed matter with a scratch concealment layer of this invention is shown, (a) is explanatory drawing which shows the state by which the concealment layer was scratched off (to be scratched off), and also the forged layer was identified. It is. (B) is the schematic which shows the cross section of the printed matter with a scratch concealment layer of this invention. The form of the other one Example of the printed matter with a scratch concealment layer of this invention is shown, (a) is explanatory drawing which shows the state by which the concealment layer was scratched off (to be scratched off), and also the forged layer was identified. It is. (B) is the schematic which shows the cross section of the printed matter with a scratch concealment layer of this invention. It is the schematic for demonstrating the outline of the conventional printed matter with a scratch concealment layer. (A) is explanatory drawing which shows the state by which the concealing layer was scratched off (scratched off). (B) is the schematic which shows the cross section of the printed matter with a scratch concealment layer. It is sectional drawing which shows the cross section of the conventional printed matter with a scratch concealment layer. It is sectional drawing which shows the cross section of the conventional printed matter with a scratch concealment layer. It is sectional drawing which shows the cross section of the base material of the printed matter with the conventional scratch concealment layer. It is explanatory drawing for demonstrating the method in the case of unauthorized use by forgery and alteration. It is explanatory drawing for demonstrating the method in the case of unauthorized use by forgery and alteration. It is explanatory drawing for demonstrating the method in the case of unauthorized use by forgery and alteration. It is explanatory drawing for demonstrating the method in the case of unauthorized use by forgery and alteration. It is explanatory drawing for demonstrating the method in the case of unauthorized use by forgery and alteration. It is the schematic which shows the conventional printed matter with a scratch concealment layer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Sheet | seat base material 2 ... Value information printing part 3 ... Scratch concealment layer 4 ... Forgery prevention layer 5 ... Thickness adjustment layer 10 ... Printed matter with a scratch concealment layer

Claims (4)

It is a printed matter with a scratch concealment layer in which the valuable information printing part is concealed by the ink having scratch properties on the sheet-like substrate,
A printed matter with a scratch concealment layer, characterized in that at least a forgery prevention layer is provided on a part of the valuable information printing part or on the lower part of the entire surface.   2. The printed matter with a scratch concealment layer according to claim 1, wherein the anti-forgery layer is formed with solid printing, letters, logo marks, illustrations, fine prints, or micro letters by heat-sensitive ink or temperature ink.   The anti-forgery layer is formed of a functional ink containing an infrared absorbing ink, and any one or more of solid printing, letters, logo marks, illustrations, fine patterns, or micro letters are formed. The printed matter with a scratch concealing layer according to 1. A method for producing a printed matter with a scratch concealment layer in which a valuable information printing part is concealed by an ink having a scratch property on a sheet-like substrate,
A method for producing a printed matter with a scratch concealing layer, wherein a forgery prevention layer is formed with at least one of a thermal ink, a temperature indicating ink, and an infrared absorbing ink at a part of the valuable information printing portion or at the bottom of the entire surface.

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