KR102620111B1 - Prints With Information Security Features - Google Patents

Abstract

The present invention relates to printed matter with security functions, and more specifically, when using printed matter such as security labels or security stickers, only users with specific authority use the printed matter based on NFT blockchain to increase security characteristics. It is about printed matter that has functions and eco-friendly characteristics.

Description

Prints With Information Security Features}

The present invention relates to printed matter with security functions, and more specifically, when using printed matter such as security labels or security stickers, only users with specific authority use the printed matter based on NFT blockchain to increase security characteristics. It is about printed matter that has functions and eco-friendly characteristics.

Recently, the impact of the global environment and ecosystem on the social economy is increasing. For example, in the printing industry, there is a growing movement to move away from fossil resources, and from the perspective of carbon neutrality, there is increasing interest in replacing raw fuels with biomass-derived chemicals in the production of printing ink. Research into producing resin from biomass raw materials is actively underway.

In addition, the movement to manage offline posting information through digital content integration services is increasing, and the number of services that allow sharing of information by limiting offline posting information to authorized users is also increasing.

In particular, the printing stability of printed materials is required to maintain the characteristics such as color vividness, durability, and chemical resistance of printed materials for a long time so that users can convert offline printed information into online data when needed. This requires research and development. am.

Reference 1: Korean Patent No. 10-1835310 Reference 2: Korean Patent No. 10-1296268 Reference 3: Korean Patent No. 10-1140699

The present invention is intended to solve the above problems, and when using a specific pigment for security labels or security stickers, only users with specific authority can use the printed matter based on NFT blockchain to increase security characteristics. The purpose is to provide printed materials with functions and eco-friendly characteristics.

A printed matter having an information security function according to an embodiment of the present invention includes a base layer; an adhesive layer formed on top of the base layer; A printed layer formed on top of the adhesive layer; A printing layer formed on top of the printing layer; It includes the printed layer and a coating layer formed on top of the printed layer, wherein the printed layer is dried by applying an ink composition to the printed layer by any one of inkjet printing, intaglio printing, flatbed printing, and screen printing. The ink composition is characterized in that it includes a pigment, varnish, antistatic agent, antifoamer, filler, solvent, wetting agent, and thickener.

A printed matter having an information security function according to an embodiment of the present invention includes a printed layer; A printing layer formed on top of the printing layer; It includes the printed layer and a coating layer formed on top of the printed layer, wherein the printed layer is dried by applying an ink composition to the printed layer by any one of inkjet printing, intaglio printing, flatbed printing, and screen printing. The ink composition is characterized in that it includes a pigment, varnish, antistatic agent, antifoamer, filler, solvent, wetting agent, and thickener.

The pigment includes a dye, and the dye includes a red dye, a yellow dye, a blue dye, a green dye, an orange dye, and a black dye.

The varnish is characterized in that it contains one or two or more selected from acrylic resin, malein-modified phenol resin, and polyurethane resin.

The solvent is characterized in that it contains one or two or more selected from ethanol, methanol, isopropyl alcohol, butanol, and acetone.

The filler is characterized in that it contains one or two or more selected from calcium carbonate, barium sulfate, talc, and silicon dioxide.

The printing layer includes a hologram layer manufactured by mixing a pigment manufactured by stamping a resin, light scattering particles, and a thermoplastic resin, and the light scattering particles are characterized in that they are either spherical particles or irregularly shaped particles.

The coating layer is characterized in that it contains a biodegradable polylactic acid-based resin.

A first cut line is formed on the edge of the first region, which is a common region of the adhesive layer, the printed layer, and the coating layer, and divides the first region into a 1-1 region and a 1-2 region inside the first region. If a second incision line is formed and the length of the incision line is the same, the interval between adjacent incision lines of the first incision line is shorter than the interval between adjacent incision lines in the second incision line. It is characterized by

In an embodiment of the present invention, a data transmission method using a printed matter with an information security function recognizes the printed matter at a user terminal, transmits and receives data to an administrator server through a wireless communication network, and uses a blockchain module in the wireless communication network. The information recognized from the printed matter is converted into a non-fungible token (NFT) to verify blockchain-based information and trade related information. Input information in the blockchain module, issue a unique code for the input information, and It is characterized by authenticating the authority of input information, generating results of the input information, and outputting the authenticated information.

According to the printed matter having a security function of the present invention, it has the effect of providing a printed matter with stability and color clarity that can accurately convert offline data into online data by increasing the information security function from the outside.

Figure 1 shows a schematic diagram of a printed information provision system based on a blockchain that has been converted into NFT using the printed material of the present invention.
Figure 2 shows a cross-sectional schematic diagram of a printed matter having a printed layer, a printed layer, and a coating layer of the present invention.
Figure 3 shows a cross-sectional schematic diagram of a printed product having a base layer, an adhesive layer, a printed layer, a printed layer, and a coating layer of the present invention.
FIG. 4(a) shows a first incision line with a short incision interval, and FIG. 4(b) shows a schematic diagram of a second incision line with a long incision interval.
Figure 5 shows a schematic diagram of separating printed matter with cut lines at different intervals from an adherend.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components.

Terms such as first, second, A, B, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term “and/or” includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

1 shows a schematic diagram of a data transmission method using a printed matter with information security function of the present invention. As shown in FIG. 1, printed information of a printed matter 100 with an information security function is photographed by a plurality of user terminals 200, for example, a smartphone, a tablet PC, a laptop, etc., and transmitted through a wireless communication network 500. It can be stored and managed on a manager server 400 such as a cloud. Here, when recognized by a plurality of user terminals 200 and transmitting and receiving data to the manager server 400 through the wireless communication network 500, the information recognized from the printed matter 100 according to the blockchain module 300 By converting it into an NFT (Non-Fungible Token), blockchain-based information verification and related information transactions are carried out, making it possible to share information on printed materials with a high level of security. Here, the blockchain module inputs information, issues a unique code for the input information, authenticates the authority of the input information, generates a result of the input information, and outputs the authenticated information to obtain information on the printed product 100. It is possible to check from the user terminal 200 with specific authority.

Figure 2 shows a cross-sectional schematic diagram of a printed matter having a printed layer 10, a printed layer 20, and a coating layer 30 of the present invention, and Figure 3 shows a base layer 50, an adhesive layer 40, and a printed matter of the present invention. A cross-sectional schematic diagram of a printed product having a layer 10, a printed layer 20, and a coating layer 30 is shown. This is explained in detail below.

The printing layer 20 of the present invention can be formed by applying an ink composition to the printed layer 10 by any one of inkjet printing, intaglio printing, flat printing, and screen printing and drying it.

The ink composition includes pigment, varnish, antistatic agent, antifoaming agent, filler, solvent, wetting agent, thickener, and magnetic particles. For example, 10 to 40 parts by weight of pigment, 30 to 70 parts by weight of varnish, 10 to 30 parts by weight of solvent, 1 to 5 parts by weight of antistatic agent, 1 to 3 parts by weight of defoamer, 1 to 3 parts by weight of filler, 1 to 3 parts by weight of thickener. It may contain 3 parts by weight and 1 to 3 parts by weight of magnetic particles.

The pigment includes a dye, and the dye includes a red dye, a yellow dye, a blue dye, a green dye, an orange dye, and a black dye.

The red dye is C.I.Acid Red 1, 4, 8, 9, 10, 13, 14, 18, 26, 27, 35, 37, 50, 51, 52, 54, 57, 60, 73, 87, 88, 92 94, 97, 101, 111, 114, 119, 127, 128, 131, 138, 151, 154, 182, 183, 184, 186, 195, 211, 213, 215, 219, 249, 251, 254, 256 , 257, 260, 265, 266, 299, 315, 336, 337, 357, 359, 361, 362, 374, 405, 414, 418, 419, 425, 426, 430, 432, and 447, or Mixtures of two or more may be used. In particular, C.I.Acid Red 13, 14, 18, 27, 50, and 52 can be preferably used.

The yellow dye is C.I.Acid Yellow 3, 9, 11, 17, 19, 23, 25, 36, 42, 44, 49, 59, 61, 72, 73, 76, 79, 99, 110, 116, 117, 127. , 128, 129, 137, 151, 158:1, 159, 184, 194, 199, 204, 216, 219, 220, 230, 232, 235, 241, 242, 246, 250, and 252, or Mixtures of two or more may be used. In particular, C.I.Acid Yellow 3, 17, and 23 can be preferably used.

The blue dye is C.I.Acid Blue 1, 3, 7, 9, 15, 25, 29, 40, 41, 45, 47, 62, 74, 78, 80, 83, 86, 90, 92, 93, 100, 113. , 116, 120, 127, 129, 138, 140, 142, 145, 147, 158, 171, 182, 185, 193, 221, 225, 230, 249, 260, 264, 277, 280, 281, 284, 3 17 Any one or a mixture of two or more selected from , 324, 335, and 350 may be used. In particular, C.I.Acid Blue 3, 9, 74, 83, 90, 92, and 249 can be preferably used.

The green dye is any selected from C.I.Acid Green 1, 5, 9, 12, 16, 20, 25, 27, 28, 41, 43, 50, 68, 68:1, 73, 80, 104, 111, and 114. One or a mixture of two or more may be used. In particular, C.I.Acid Green 1, 5, and 25 can be preferably used.

The orange dye is C.I.Acid Orange 3, 7, 8, 10, 24, 33, 51, 56, 60, 67, 74, 80, 86, 88, 94, 95, 107, 116, 142, 144, 154, and Any one or a mixture of two or more selected from 156 may be used. In particular, C.I.Acid Orange 10 can be preferably used.

The black dye is C.I.Acid Black 1, 2, 24, 26, 52, 60, 63, 71, 84, 107, 132, 164, 168, 170, 172, 194, 207, 210, 234, 235, 243, and Any one or a mixture of two or more selected from ATT can be used. In particular, C.I.Acid Black 1 can be preferably used.

The ink composition may further include a light-absorbing ink compound having absorption and reflection characteristics in a wavelength range of 780 nm to 1600 nm, which is difficult to recognize with human vision. The light-absorbing ink compound having absorption and reflection characteristics in the wavelength range of 780 nm to 1600 nm can be used to determine forgery or alteration of printed materials by measuring printed matter with an optical device. The light-absorbing ink compound having absorption and reflection characteristics in the preferred wavelength range of 780 nm to 1600 nm may be a compound represented by the following formula (1) having a maximum absorption wavelength of 925 nm.

[Formula 1]

Here, the case where the compound represented by Formula 1 has a Zn component is more preferable as an infrared absorption component because it has an absorption wavelength (λmax) closer to the infrared region than when it has Cu or other components.

The ink composition may further include a fluorescent pigment. One can be used that has excellent durability and chemical resistance, and has excellent fluorescence in the long wavelength (365 nm) and short wavelength (254 nm) ultraviolet range. The fluorescent pigment according to the present invention may contain one or two of organic fluorescent pigments and inorganic fluorescent pigments, and may be one or a mixture of two or more selected from Lumilux White-Yellow CD 704, Lumilux Red CD 106, and Lumilux Red CD 72. Includes.

The varnish may include any one or two or more selected from acrylic resin, malein-modified phenolic resin, and polyurethane resin. The content of varnish is used within the above composition ratio range so as not to deteriorate printability, such as when the ink becomes diluted during the preparation of the ink composition, resulting in poor color reproduction and excessively high fluidity, which prevents the printed matter from being coated with an appropriate amount of the ink composition.

The filler may include any one or two or more selected from calcium carbonate, barium sulfate, talc, and silicon dioxide. If the amount of the filler is small, the invisibility is insufficient, and if the amount of the filler is too large, the color density decreases and the transferability becomes insufficient, so it is preferable to use it within the above composition ratio range.

The addition of the antistatic agent has the effect of preventing dust from being adsorbed on part or all of the printing area. The antistatic agent of the present invention can secure printing cleanliness by preventing printing bleeding of the ink composition due to static electricity accumulated in the printing layer by using, for example, a compound represented by the following formula (2).

[Formula 2]

The antifoaming agent is used to remove air bubbles that may occur when applying the ink composition to the printing layer, and if air bubbles remain in the printing layer, the printing quality may deteriorate. Therefore, when printing an ink composition using an antifoaming agent, it serves to remove air bubbles. In the present invention, a siloxane-based compound represented by the following formula (3) can be preferably used to remove bubbles generated during the printing process of the ink composition.

[Formula 3]

(In Formula 3, n represents an integer of 10 to 100)

The solvent may include any one or two or more selected from ethanol, methanol, isopropyl alcohol, butanol, and acetone. When preparing the ink composition, the solvent may be used to prevent gelation or lack of fluidity so that the ink is not evenly coated on the printed matter. The ratio can be adjusted and used within the above range.

The ink composition may further include a wetting agent. The wetting agent may include a compound represented by the following Chemical Formula 4, and has a high boiling point and has the property of providing sufficient drying properties when printing the ink composition on the printing layer 10. has

[Formula 4]

(In Formula 4, n represents an integer from 5 to 30)

The ink composition may further include a thickener. The thickener may include a compound represented by the following Chemical Formula 5, and has the advantage of being able to appropriately control the spreadability or drying properties of printing.

[Formula 5]

(In Formula 5, n represents an integer of 10 to 30)

The ink composition may further include magnetic particles. When printed materials are used for banknotes, bank notes, checks, securities or bonds, if an ink composition containing magnetic particles is printed to prevent counterfeiting and identify forgery, the area where the security ink is applied is magnetic. It is possible to measure the properties at regular time intervals and determine the authenticity of the printed matter from the measured values of the measured magnetic properties and the change value between the measured values.

The printing layer 20 of the present invention can use a hologram layer, and the hologram layer has an embossed shape on one side and can form a hologram by scattering light. In other words, the phase information of light can be recorded using the interference and diffraction phenomenon of light. These holograms can record three-dimensional images that cannot be expressed through regular photographs. In particular, holographic images are difficult to forge or falsify, and can also provide aesthetics and decorativeness to the adherend to which they are attached. The hologram layer is made of polycarbonate chain resin, acrylic resin, fluorine-based acrylic resin, silicone-based acrylic resin, epoxy acrylate resin, polystyrene resin, acrylonitrile styrene resin, cycloolefin polymer, methyl styrene resin, and fluorene resin. , PET (polyethylene terephthalate), polypropylene, phenol resin, melamine resin, PEN (polyethylene naphthalate), and PI (polyimide). A hologram layer can be manufactured by melting such a resin and stamping it under a certain pressure, or the hologram layer can be manufactured by a method such as laser irradiation. In particular, it is advantageous to first coat UV resin and then harden it with light to apply a hologram, in that a more elaborate hologram layer can be manufactured. In addition, since the coloring pigment provides light reflection, gold, silver, copper, zinc, aluminum, or pearl pigments can be mixed with the resin and used. In addition to the coloring pigment, light scattering particles may be mixed. As light scattering particles, spherical particles or irregularly shaped particles are used. Additionally, as a material for light scattering particles, particles made of inorganic fine particles or organic fine particles may be used.

The base layer 50 of the present invention basically requires release properties, adhesion, surface smoothness, dimensional stability, etc. In addition, since it must be well peeled from the adhesive layer 40, low peeling force is required. Any material that satisfies the above physical properties can be used for the base layer 50 of the present invention without any restrictions. For example, a plastic film or the like can be used.

The adhesive layer 40 of the present invention can be used without any restrictions as long as it is a component that can adhere the adherend and the printed material. For example, acrylate resin, acrylic acid, nonionic surfactant, etc. can be mixed and used.

The printed layer 10 of the present invention can be used without any restrictions as long as it is a material that can print the printed layer 20, for example, paper can be used.

The coating layer 30 of the present invention must have transparency and durability while protecting the printed matter after it is attached to the adherend. For example, the material of the transparent coating layer 30 is ester, ethylene, propylene, diacetate, triacetate, styrene, carbonate, methylpentene, sulfone, ether ethyl ketone, imide, fluorine, nylon, acrylate, and alicyclic. A polymer or copolymer containing any one structural unit selected from the group olefin group can be used.

In particular, the coating layer 30 of the present invention is a resin material with excellent transparency, hardness, and thickness uniformity and may include a compound represented by the following formula (6).

[Formula 6]

(In Formula 6, n represents an integer of 10 to 50)

In addition, the coating layer 30 of the present invention may contain a polylactic acid-based resin, thereby enabling biodegradability and preventing the leakage of environmental hormones or dioxins that occur during incineration or landfilling of printed matter. The polylactic acid-based resin is a polymer containing 85% by weight or more of lactic acid monomer units, and is a homopolymer of lactic acid, or a copolymer of lactic acid with other hydroxycarboxylic acids, aliphatic cyclic esters, dicarboxylic acids, and diols, or These polymer compositions contain at least 85% by weight of lactic acid monomer units. The weight average molecular weight of the polylactic acid-based resin is preferably in the range of 20,000 to 500,000. If the molecular weight is less than 20,000, the melt viscosity is low and mechanical properties may be reduced, and if the molecular weight is more than 500,000, the melt viscosity is high and film processability may be reduced.

In the present invention, when a printed material with an information security function is used as a security sticker, the printed material can be attached to the adhered surface and parts of the printed material can be sequentially separated from the adhered surface. Below, an example of separating a printed material from an adherend will be described with reference to the drawings.

FIG. 4(a) shows a first cut line 20A with a short cut interval, and FIG. 4(b) shows a schematic diagram of a second cut line 20B with a long cut interval. As shown in Figure 4, when the printed matter is separated from the adhered surface while it is attached to the adhered surface, the first cut line 20A with a short cut interval is larger than the second cut line 20B with a long cut interval. It is separated from the printed material with little force. Here, the incision line means that the incision hole is formed in the form of a line by punching the printed material. If the length of the incision line is the same, the first incision line 20A, which has a short incision interval between neighboring incision lines, is adjacent to the incision line. When the same force is applied as compared to the second cut line 20B, which has a longer cut interval, it can be easily separated from the printed product along the cut line.

Figure 5 shows a schematic diagram of separating printed matter with cut lines at different intervals from an adherend. As shown in FIG. 5, a first incision line 20A is formed on the edge of the first regions I and II, which are common regions of the adhesive layer 40, the printed layer 10, and the coating layer 30, and the A second cut line 20B is formed inside the first regions (I, II) to separate the first regions (I, II) into a 1-1 region (I) and a 1-2 region (II), , Also, assuming that the length of the incision lines is the same, the interval between adjacent incision lines of the first incision line 20A is preferably shorter than the interval between adjacent incision lines in the second incision line 20B. use. Therefore, when the same force is applied to the printed matter, the first cut line 20A breaks before the second cut line 20B.

Specifically, when separating the base layer 50 from the printed material and attaching the printed material to the adherend 60 (see FIG. 4(a)), only the first areas (I, II) are left to be used as a security sticker. The remaining part can be separated from the adherend (see Figure 4(b)). On the other hand, when only a specific area is left in the first area (I, II) and the other area is separated from the adherend 60, the gap between the neighboring cut lines of the first cut line (20A) is defined in Section 2 above. If the distance between adjacent incision lines of the improvement 20B is made longer, the first areas (I, II) are not left, and either the 1-1 area (I) or the 1-2 area (II) is separated. easy to become Therefore, if the gap between neighboring cut lines of the first cut line 20A is shorter than the gap between neighboring cut lines of the second cut line 20B, the first cut lines in the first regions I and II Instead of being separated into the -1 region (I) and the 1-2 region (II), the remaining portion is separated from the adherend along the first incision line (20A). Next, any of the 1-1 area (I) and the 1-2 area (II) is cut by the second cutting line 20B that separates the 1-1 area (I) and the 1-2 area (II). It has the advantage of being able to separate sequentially so that one remains on the adherend.

The present invention is not limited to the above-mentioned embodiments, but can be manufactured in various different forms, and those skilled in the art may manufacture the present invention in other specific forms without changing the technical idea or essential features of the present invention. You will understand that it can be done. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

100: printed matter
10: Printed layer
20: printing layer
30: coating layer
40: adhesive layer
50: basal layer
60: adherend
20A: first incision line
20B: second incision line

Claims (8)

basal layer; an adhesive layer formed on top of the base layer; A printed layer formed on top of the adhesive layer; A printing layer formed on top of the printing layer; It includes; a coating layer formed on the printed layer and the printed layer,
The printing layer is formed by applying the ink composition to the printing layer by any one of inkjet printing, intaglio printing, flat printing, and screen printing and drying it,
The ink composition includes pigments, varnishes, antistatic agents, antifoaming agents, fillers, solvents, wetting agents, and thickening agents,
The pigment includes a dye, and the dye includes a red dye, a yellow dye, a blue dye, a green dye, an orange dye, and a black dye,
The varnish includes one or two or more selected from acrylic resin, malein-modified phenol resin, and polyurethane resin,
The solvent includes any one or two or more selected from ethanol, methanol, isopropyl alcohol, butanol, and acetone,
The filler includes any one or two or more selected from calcium carbonate, barium sulfate, talc, and silicon dioxide,
The printing layer includes a hologram layer manufactured by mixing a pigment manufactured by stamping a resin, light scattering particles, and a thermoplastic resin, and the light scattering particles are either spherical particles or irregularly shaped particles,
The coating layer includes a biodegradable polylactic acid-based resin,
A first cut line is formed on the edge of the first region, which is a common region of the adhesive layer, the printed layer, and the coating layer, and divides the first region into a 1-1 region and a 1-2 region inside the first region. If a second incision line is formed and the length of the incision line is the same, the interval between adjacent incision lines of the first incision line is shorter than the interval between adjacent incision lines in the second incision line, ,
The ink composition further includes a light-absorbing ink compound represented by the following formula (1) having absorption and reflection properties in the wavelength range of 780 nm to 1600 nm,
[Formula 1]

A printed matter with an information security function, characterized in that the antistatic agent uses a compound represented by the following formula (2).
[Formula 2]
delete delete delete delete delete delete The user terminal recognizes the printed matter described in claim 1 and sends and receives data to the administrator server through a wireless communication network.
In the wireless communication network, the information recognized from the printed matter is converted into an NFT (Non-Fungible Token) according to the blockchain module, and blockchain-based information verification and related information transactions are performed.
A printed product with a security function, characterized in that the blockchain module inputs information, issues a unique code for the input information, authenticates the authority of the input information, generates a result of the input information, and outputs the authenticated information. Data transfer method.