KR102259155B1 - Apparatus for forgery detection - Google Patents

Abstract

The present invention relates to a forgery identification device, and more particularly, to a forgery identification device that can be easily identified only by human stimulation without additional equipment.

Description

Forgery identification device {APPARATUS FOR FORGERY DETECTION}

The present invention relates to a forgery identification device, and more particularly, to a forgery identification device that can be easily identified only by human stimulation without additional equipment.

Activation technologies have been continuously developed to prevent infringement of trademark rights of genuine products due to counterfeit products.

As an existing representative forgery identification device, there is a hologram such as Korea Patent Publication No. 2011-0045194 (published on May. 5, 2011). A hologram is a medium in which interference fringes that reproduce a three-dimensional image are recorded, and a three-dimensional image can be recorded and reproduced. Such a hologram records interference fringes composed of a reference laser light and laser light reflected from an object in shades on a film, but the interference fringes used at this time are not difficult to replicate. In addition, it is not suitable as a counterfeit identification device because it is not possible to easily distinguish genuine/counterfeit holograms with the naked eye.

In addition to this, there is M-Tag that induces color change using the photonic crystallinity of magnetic particles, which is a technology that controls the distance between particles through an external magnetic field and uses the interference phenomenon of reflected light. Therefore, it is difficult to replicate under the technology-intensive nanotechnology base and has the advantage of being able to express various colors depending on the strength of the external magnetic field, but it is very disadvantageous in terms of immediacy because a magnetic tool is required to detect the color change. Do.

Therefore, there is a great demand in the related industry for a technology that can easily identify forgery without a separate tool and is difficult to replicate.

Korea Patent Publication No. 2011-0045194 (published on May 5, 2011)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a forgery identification device that can be easily identified only by stimulation of the human body without additional equipment.

The present invention may also have as its object to achieve these objects and other objects that can be easily derived by a person skilled in the art from the general description of the present specification in addition to the above clear objects.

In order to achieve the object as described above, the forgery identification device of the present invention includes a stimulus application unit in direct contact with an external stimulus, and a variable pattern part in which a pattern is changed due to physical or chemical change caused by the external stimulus. do it with

In addition, the external stimulus may be selected from the group consisting of heat, pressure, friction, solvent, and combinations thereof.

And, the heat may be transferred to the identification device by contacting the object at 28 to 39 ℃, preferably 30 to 37 ℃, more preferably 32 to 35 ℃.

In addition, the pressure may be applied to the identification device with a force of 0.5 to 15 kg _f , preferably 1 to 10 kg _f , and more preferably 3 to 7 kg _f .

And, the solvent may be liquid or gaseous, preferably liquid.

In addition, the solvent may be water, an organic solvent, a mixed solvent thereof, a solution thereof, or a mixed solution thereof, preferably water, ethanol, a mixed solvent thereof, sweat, or an aqueous ethanol solution.

And, the external stimulus may be generated by a part of the human body.

In addition, the stimulus applying unit may have a physical or chemical change by the external stimulus.

In addition, the forgery identification device of the present invention is positioned between the stimulus application unit and the variable pattern unit, and may further include a mediation transmission unit for transmitting the external stimulus or physical change.

On the other hand, the forgery identification device of the present invention is

a first layer having a first charging sequence and being charged by an external stimulus;

a second layer having a second charging sequence different from the first charging sequence, being charged by the external stimulus, and in contact with the first layer; And

and a third layer in contact with the second layer, having a first space for accommodating first particles having one side charged and the charged side having the first color and the opposite side having the second color to be freely rotated and,

The first particles are arranged by a predetermined pattern,

The remaining regions of the third layer in which the first particles are not arranged have a color different from that of the first particles facing the second layer when the first and second layers are charged.

In addition, the third layer is a second layer having a color different from that of the first particles facing the second layer when the first and second layers are charged in the remaining region where the first particles are not arranged. It may have a second space accommodating the particles.

And, the space of the third layer may be opened to the second layer.

And, the light transmittance of the first layer may be 25 to 99.5%, preferably 30 to 95%, more preferably 35 to 90%.

And, the light transmittance of the second layer may be 25 to 99.5%, preferably 30 to 95%, more preferably 35 to 90%.

In addition, the first layer may be selected from the group consisting of polyethylene, polypropylene, polyurethane, vinyl chloride resin, polycarbonate, polystyrene, polyester, Teflon, copolymers thereof, and mixtures thereof.

In addition, the second layer may be selected from the group consisting of glass, glass fiber, polyamide, polyimide, polyacrylic, and mixtures thereof.

And, the first space or the second space of the third floor is

a base layer spaced apart from the second layer, and

It may be formed by a barrier rib or spacer that is interposed between the second layer and the base layer and is electrically insulating.

And, the average particle diameter of the first particles may be 40 to 120 ㎛, preferably 45 to 110 ㎛, more preferably 50 to 100 ㎛.

In addition, the color difference between the first color and the second color in the CIE Lab may be 8 or more, preferably 10 or more, and more preferably 15 or more.

And, the second particle may be electrically insulating.

And, between the third layer and the forged identification object, a fourth layer comprising a visible object selected from the group consisting of a photonic crystalline colloid, a high-gloss metal, a stress luminescent material, and combinations thereof may be further included. .

And, the external stimulus may be generated by a part of the human body.

Meanwhile, the forgery identification device of the present invention may include a fifth layer patterned with a dye selected from the group consisting of a pressure sensitive dye, an electric shock dye, a Zion dye, a mixture thereof, and a combination thereof.

In addition, the pigment has a light transmittance of 25 to 99.5%, preferably 30 to 95%, more preferably 35 to 90% by an external stimulus selected from the group consisting of heat, pressure, friction, and combinations thereof. have.

And, between the fifth layer and the forged identification object, a sixth layer having a visible object selected from the group consisting of a photonic crystalline colloid, a high-gloss metal, a stress luminescent material, and combinations thereof may be further included.

And, the external stimulus may be generated by a part of the human body.

Since the present invention does not use expensive materials such as ITO, it is possible to mass-produce a counterfeit and falsification identification device at a low price, which is excellent in economic feasibility. And, by rubbing a part of the human body, such as a finger, directly or with a solvent, etc., anytime, anywhere, it is possible to determine whether a genuine/counterfeit product is 'instantly' and 'easy' without a separate tool, so the user's convenience is excellent. In addition, since the first particles having an average particle diameter of 40 to 120 μm and the like are difficult to reproduce due to complicated and difficult manufacturing conditions, there is also an advantage in that attempts to manufacture counterfeit products can be frustrated in the beginning.

1 is a side cross-sectional view showing an embodiment of the present invention forgery identification device in which the stimulus application part is a surface.
Figure 2 is a side cross-sectional view showing an embodiment of the present invention forgery identification device in which the stimulus application is a layer.
Figure 3 is a side cross-sectional view showing an embodiment of the present invention forgery identification device intervening transmission unit.
4 is a side cross-sectional view showing an embodiment of the present invention forgery identification device accommodating the first particle in a micro-island-shaped space.
5 is a side cross-sectional view showing an embodiment of the present invention forgery identification device that accommodates the first particle in a space made of a partition wall.
Figure 6 is a side cross-sectional view showing an embodiment of the present invention forgery identification device further including a second particle.
7 is a side cross-sectional view showing an embodiment of the present invention forgery identification device that accommodates the first particle and the second particle in a space made of a spacer.
8 is a perspective view of FIG. 7 ;
9 is a plan view showing an embodiment of the present invention forgery identification device before the external stimulus is applied.
10 is a plan view showing an embodiment of the present invention forgery identification device after an external stimulus is applied.
11 is a plan view showing an embodiment of the present invention forgery identification device having a visual layer.
12 is a plan view showing an embodiment of the present invention forgery identification device having a dye layer.
13 is a plan view showing an embodiment of the present invention forgery identification device having a dye layer and a visual layer.

Hereinafter, preferred embodiments of the present invention will be described in detail. In addition, in the following description, many specific details such as specific components are described, which are provided to help a more general understanding of the present invention, and it is common in the art that the present invention can be practiced without these specific details. It will be self-evident to those who have the knowledge of And, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Additionally, unless otherwise specified throughout this specification, the term 'comprising' or 'containing' refers to including any component (or component) without particular limitation, and does not include the addition of other components (or components). cannot be construed as an exclusion.

As used herein, the term 'stress luminescent material' refers to a material that generates light by applied mechanical energy.

In order to achieve the object as described above, the forgery identification device of the present invention includes the stimulus application units 10 and 11 in direct contact with an external stimulus, and a variable pattern in which a physical or chemical change occurs by the external stimulus to change the pattern. It is characterized in that it comprises a part (20).

The stimulus application portions 10 and 11 may be a layer having a constant thickness as shown in FIG. 2 , or may simply point to the surface as shown in FIG. 1 .

In addition, the external stimulus may be selected from the group consisting of heat, pressure, friction, solvent, and combinations thereof, and the present invention is particularly characterized in that the external stimulus is generated by a part of the human body such as a finger. This makes it possible to easily identify forgery without a separate tool such as a magnet.

Specifically, the heat among the external stimuli is 28 to 39 ℃, preferably 30 to 37 ℃, more preferably 32 to 35 ℃ of the identification device when the human body, such as a finger, palm, armpit, cheek, forehead, etc. is in contact. can be transmitted.

In addition, the pressure may also be applied to the identification device through the human body with a force of 0.5 to 15 kg _f , preferably 1 to 10 kg _f , and more preferably 3 to 7 kg _f .

Furthermore, the external stimulus may be caused by a solvent such as water buried in a finger or the like. In the present invention, the state of the solvent includes not only a liquid state, but also a gaseous state or a solid state. The solvent that can be used in the present invention includes a solution in which a solute such as sodium chloride is dissolved in the solvent in addition to water, an organic solvent, and a mixed solvent thereof.

In the present invention, in particular, an aqueous ethanol solution in which water, ethanol, a mixed solvent thereof, sweat, or alcohol is further dissolved is more preferable. Therefore, the user can easily check whether the forgery or not by rubbing the forgery identification device of the present invention without burying or burying a few drops of water or alcohol on his/her hand in a restaurant or the like.

The external stimulus delivered in this way causes a physical or chemical change of the variable pattern unit 20 through the stimulus application units 10 and 11 and, as a result, causes a change in the pattern of the variable pattern unit 20 to identify whether forgery or not. generate possible patterns. The present invention also includes a case in which physical or chemical changes occur in the stimulus application parts 10 and 11 in addition to the variable pattern part 20 due to an external stimulus.

And, as shown in FIG. 3, the forgery identification device of the present invention is located between the stimulus application units 10 and 11 and the variable pattern unit 20, and a mediation transmission unit for transmitting the external stimulus or physical/chemical change. (30) may be further included. An external stimulus can be more efficiently and stably transmitted to the variable pattern unit 20 through the interposition of the medium transmission unit 30 .

On the other hand, the forgery identification device of the present invention as shown in Figs.

a first layer 100 having a first charging sequence and being charged by an external stimulus;

a second layer (200) having a second charging sequence different from the first charging sequence, being charged by the external stimulus, and in contact with the first layer (100); And

and a first space 315 accommodating a first particle 310 on which one side is charged, the charged side having the first color, and the opposite side having the second color, to be freely rotated, and the second layer ( 200) and a third layer (300) in contact,

The first particles 310 are arranged by a predetermined pattern,

The remaining region in which the first particles 310 are not arranged in the third layer 300 faces the second layer 200 when the first layer 100 and the second layer 200 are charged. It may have a color different from the color of the first particle 310 .

The forgery identification device of the present invention shown in FIGS. 4 to 8 is characterized in that the rotatable first particle 310 in space exhibits a specific pattern by rotating by an external stimulus. In particular, the embodiments shown in FIGS. 4 to 8 rotate the first particles 310 by induction of static electricity due to friction of the human body.

Insulators bind each other's electrons with a stronger attraction than metals through covalent bonds between atoms, so electrons cannot easily escape from the nucleus of an atom. Therefore, it is difficult for electrons to move easily, and as a result, current does not flow well. However, there are times when an electric phenomenon occurs even in these insulators, and a representative example of this is static electricity (friction electricity). Electrostatic phenomena easily occur through friction and have the following mechanism:

1) Rub two non-conductive objects.

2) Frictional heat is generated in the two insulators by friction.

3) The movement of electrons becomes active by thermal energy, and some free electrons can temporarily move from one insulator to another.

4) At this time, since the two different insulators have different affinities for electrons, when electrons move to a material with a relatively high affinity for electrons, the object becomes a negative (-) charge, and the object that has lost electrons has electrons It becomes relatively insufficient and becomes a (+) replacement.

The electrostatic phenomenon is applied to the forgery identification device in the embodiments shown in FIGS. 4 to 8 . In the case of using triboelectricity, there is an advantage that a separate physical connection line is not required and at the same time it is possible to form a film of the forgery identification device.

First, the embodiment of FIG. 4 consists of three layers. The first layer 100 has a first charging sequence, is a layer charged by an external stimulus, and corresponds to the stimulus application unit 11 described above. In addition, the second layer 200 is a layer in contact with the first layer 100 and has a second charging sequence different from the first charging sequence, and is transferred to the first layer 100 or to the first layer 100 by the above-described external stimulus. It is charged by the movement of electrons from the layer 100 .

The third layer 300 corresponding to the above-described variable pattern portion 20 is in contact with the second layer 200 and has a first space 315 in the form of a micro-island therein, and the first Space 315 also has a first particle 310 therein. The first particle 310 is freely rotatable in the first space 315, one side is charged, the charged side has a first color, and the opposite side has a second color.

The first particles 310 are arranged in a predetermined pattern, and the remaining regions in which the first particles 310 of the third layer 300 are not arranged, the first layer 100 and the second layer (200) has a color different from that of the first particles (310) facing the second layer (200) when charged.

For example, in FIG. 9 , the charged side of the first particle 310 has green color, the opposite side has red color, and the remaining region of the third layer 300 in which the first particle 310 is not arranged has red color. Forgery identification in the case is made as follows. For example, when the first layer 100, which is a synthetic resin, is rubbed with a finger, electrons of the second layer 200, which is glass, move to the first layer 100 by frictional heat, and the first layer 100 becomes (-), The second layer 200 is positively charged. For example, if one side of the first particle 310 is negatively charged, as shown in FIG. 10 , the first particle 310 rotates and shows green in the direction of the second layer 200, which is a color different from red in the remaining area. Forgery and falsification identification is made by being roughly distinguished from each other.

The material of the first layer 100 is not limited as long as it is a material that easily induces static electricity by friction, for example, polyethylene, polypropylene, polyurethane, vinyl chloride resin, polycarbonate, polystyrene, polyester, Teflon, and the like. copolymers, and mixtures thereof.

In addition, the material of the second layer 200 is not limited as long as it is a material that facilitates the movement of electrons by electrostatic induction, for example, glass having a different charging sequence from the charging sequence of the first layer 100, glass fiber, polyamide, polyimide, polyacrylic, and mixtures thereof.

In addition, the light transmittance of the first layer 100 and the second layer 200 needs to be at least a certain value so that the pattern of the third layer 300 can be grasped, specifically 25 to 99.5%, preferably 30 to 95%, more preferably 35 to 90%.

The present invention is particularly characterized in that the average particle diameter of the first particles 310 is 40 to 120 μm, preferably 45 to 110 μm, and more preferably 50 to 100 μm. When the average particle diameter is within the above range, it is possible to exhibit high-quality resolution while preventing a problem in which a phase change occurs easily even with a weak voltage or a slight impact.

In addition, the color difference between the first color and the second color in the CIE Lab may be 8 or more, preferably 10 or more, and more preferably 15 or more so that the forgery identification pattern can be easily identified. The above CIE is an abbreviation of the International Lighting Commission, and Lab indicates brightness, red green, and yellow blue, respectively.

As shown in FIG. 5, the first space 315 of the third layer 300 is

A base layer 390 spaced apart from the second layer 200, and

It may be formed by the barrier rib 350 which is interposed between the second layer 200 and the base layer 390 and is electrically insulating. When the first space 315 is formed as in the embodiment of FIG. 5 , the manufacturing process is simplified and the price competitiveness of the product is improved.

In addition, the space of the third layer 300 may be opened to the second layer 200 as shown in FIG. 5 , through which the electromagnetic force transmission efficiency is increased, so that the rotation of the first particles 310 is smooth. .

In addition, the third layer 300 is, as shown in FIGS. 6 to 8 , in the remaining region where the first particles 310 are not arranged, the first layer 100 and the second layer 200 . It may have a second space 325 accommodating the second particles 320 having a color different from the color of the first particles 310 facing the second layer 200 when it is charged.

At this time, since the second particle 320 does not need to change color, rotation is unnecessary, and as a result, it may be electrically insulating. Of course, the second particle 320 is also electrically conductive like the first particle 310 and one side may be charged. In this case, when the first layer 100 and the second layer 200 are charged, the second particle 320 is electrically conductive. The color of the second particle 320 and the first particle 310 facing the second layer 200 should be different.

And, as shown in FIGS. 7 and 8, the second space 325 of the third layer 300 is

A base layer 390 spaced apart from the second layer 200, and

The spacer 360 may be interposed between the second layer 200 and the base layer 390 and may be formed by an electrically insulating spacer 360 . In this case, the second particle 320 may also be electrically insulating or electrically conductive.

On the other hand, as shown in FIG. 11, the forgery identification device of the present invention is a visual object selected from the group consisting of a photonic crystalline colloid, a high-gloss metal, a stress luminescent material, and a combination thereof, between the third layer 300 and the forged identification object. A fourth layer 400 including (視認物) may be further included. Through this, an identification pattern made of a photonic crystalline colloid, a high-gloss metal, a stress luminescent material, etc. can be clearly distinguished from the surroundings, and as a result, the identification pattern can be easily and clearly identified even in a dark place.

At this time, the first particle 310 ′ has a light transmittance of 25 to 99.5%, preferably 30 to 95%, more preferably by an external stimulus so as to easily recognize the visible object of the fourth layer 400 . For example, it can be increased to 35 to 90%.

The stress luminescent material refers to a material that generates light by mechanical energy applied as described above. Specific examples of such a stress luminescent material include zinc sulfide (Zns:Cu) that emits green light when copper is mixed, and zinc sulfide (ZnS:Cu, Mn), ZnS:Mn, ZnS that emits red light when copper and manganese are mixed. :Cu,Mn, ZnS:Cu,Pb, ZnS:Cu,Pb,Mn, MgF2:Mn, La2O2S:Eu, Y2O2S:Cu, EuD4TEA, EuD4TEA+1.25 mL DMMP, ZnS:Cu,Cl, ZnS:Cu,Mn ,Cl, SrAl2O4:Eu, SrAl2O4:Ce, SrAl2O4:Ce,Ho, SrMgAl6O11:Eu, SrCaMgSi2O7:Eu, SrBaMgSi2O7:Eu, Sr2MgSi2O7:Eu, Ca2MgSi2O7:Ca2MgSi2O7:Eu, TiY, CaO7:Eu, TiY, CaO7:Eu Pr3+, ZnGa2O4:Mn, MgGa2O4:Mn, Ca2Al2SiO7:Ce, ZrO2:Ti, ZnS:Mn, Te and the like.

The forgery identification device of the present invention may also include a fifth layer 500 patterned with a dye 510 selected from the group consisting of a pressure sensitive dye, an electric shock dye, a Zion dye, a mixture thereof, and a combination thereof, as shown in FIG. 12 . can

In this case, the dye 510 may implement a forgery identification pattern by causing the intended color to be expressed by an external stimulus selected from the group consisting of heat, pressure, friction, solvent, and combinations thereof.

Alternatively, the light transmittance of the dye 510 may be increased to 25 to 99.5%, preferably 30 to 95%, more preferably 35 to 90% by the external stimulus. Through this, it is possible to recognize a forged identification object beyond the dye 510, and a forgery identification pattern is implemented through the pattern formed by the arrangement of the dye 510. That is, the patterned dye 510 has an increased light transmittance to expose the forged identification object on the back side, which is largely distinguished from the remaining regions other than the dye 510 to express the intended forgery identification pattern.

The forgery identification device of the present invention is also, as shown in FIG. 13, between the fifth layer 500 and the forged identification object, a visible object selected from the group consisting of a photonic crystalline colloid, a high-gloss metal, a stress luminescent material, and a combination thereof ( It may further include a sixth layer (600) having a 視認物.

Although preferred embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments described above, and those skilled in the art can implement various modifications without departing from the gist of the present invention. Of course it is possible. Accordingly, the scope of the present invention should not be construed as being limited to the above embodiments, and should be defined by the claims described below as well as the claims and equivalents.

10, 11: Stimulus application part 20: Variable pattern part
30: medium transmission unit
100: first layer 200: second layer
300: third layer 310, 310': first particle
315: first space 320: second particle
325: second space 350: bulkhead
360: spacer 390: base layer
400: fourth layer 500: fifth layer
510: pigment 600: sixth layer

Claims (5)

As a forgery identification device,
a stimulus application part in direct contact with an external stimulus, and
and a variable pattern part in which a pattern is changed due to physical or chemical change caused by the external stimulus,
The stimulus application part is a layer having a constant thickness,
Physical or chemical change occurs in the stimulus application unit by the external stimulus,
The external stimulus is selected from the group consisting of heat, pressure, friction, solvent, and combinations thereof,
The heat is transferred in contact with the object of 28 to 39 ℃ to the forgery identification device,
The pressure is applied with a force of 0.5 to 15 kg _{f to the forgery identification device,}
The solvent is liquid or gaseous,
The solvent is water, an organic solvent, a mixed solvent of water and an organic solvent, an aqueous solution, an organic solution, or a mixed solution of an aqueous solution and an organic solution,
The pattern after the change caused by the external stimulus is predetermined, forgery identification device. delete The method according to claim 1,
The stimulus application unit
a first layer having a first charging sequence and being charged by an external stimulus; and
A second layer having a second charging sequence different from the first charging sequence, being charged by the external stimulus, and in contact with the first layer
Including,
The variable pattern part
and a third layer in contact with the second layer, having a first space accommodating a first particle having one side charged, the charged side having the first color, and the opposite side having the second color, free to rotate and,
The first particles are arranged by a predetermined pattern,
The remaining regions of the third layer in which the first particles are not arranged have a color different from that of the first particles facing the second layer when the first and second layers are charged, Forgery identification device. The method of claim 3,
The third layer is a second layer having a color different from that of the first particles facing the second layer when the first and second layers are charged in the remaining region where the first particles are not arranged. A counterfeit identification device, characterized in that it has a second space containing the particles. The method of claim 3,
The first particle has an average particle diameter of 40 to 120 μm, characterized in that the forgery identification device.

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