阅读说明：本技术 一种防伪标签 (Anti-counterfeit label ) 是由 周世兵 陈洪林 许晓光 覃燕 于 2021-08-03 设计创作，主要内容包括：本发明公开了一种防伪标签,包括：基材层,由透明致密材料制成；基底层,层叠设置于所述基材层的下方,所述基材层由致密材料制成,所述基材层与所述基底层边缘密封连接,所述基材层与所述基底层之间设有第一容置空间及第二容置空间,所述第一容置空间与所述第二容置空间之间设置有密封件；指示材料,设于所述第一容置空间内,以及升华材料,设于所述第二容置空间内,当所述密封件破裂时,所述升华材料可与所述指示材料发生变色加成反应或生产有色包合物。上述防伪标签,激活后,密封件在压力作用下破裂,升华材料蒸气与指示材料发生变色加成反应或生成有色包合物,从而通过变色指示真伪,且变色不可逆,可防止防伪标签被重复利用。(The invention discloses an anti-counterfeit label, comprising: the substrate layer is made of a transparent compact material; the base layer is arranged below the base layer in a laminated mode and is made of compact materials, the base layer is connected with the edge of the base layer in a sealing mode, a first accommodating space and a second accommodating space are arranged between the base layer and the base layer, and a sealing piece is arranged between the first accommodating space and the second accommodating space; the indicating material is arranged in the first accommodating space, the subliming material is arranged in the second accommodating space, and when the sealing element is broken, the subliming material and the indicating material can generate color-changing addition reaction or produce colored inclusion compounds. Above-mentioned antifalsification label, the activation back, the sealing member breaks under the pressure action, and sublimation material steam takes place the color change addition reaction or produces colored inclusion compound with indicating material to indicate true and false through discolouing, and discolouing irreversibly, can prevent that antifalsification label from by reuse.)

1. A security label, comprising:

the substrate layer is made of a transparent compact material;

the base layer is arranged below the base layer in a laminated mode and is made of compact materials, the base layer is connected with the edge of the base layer in a sealing mode, a first accommodating space and a second accommodating space are arranged between the base layer and the base layer, and a sealing piece is arranged between the first accommodating space and the second accommodating space;

an indicating material disposed in the first accommodating space, an

And the sublimed material is arranged in the second accommodating space, and when the sealing element is broken, the sublimed material and the indicating material can generate color-changing addition reaction or produce colored inclusion compound.

2. The security label of claim 1 wherein the indicating material comprises an unsaturated compound or a void structure.

3. The security label according to claim 2, wherein said unsaturated compound comprises a carbon-carbon double bond, a carbon-carbon triple bond, a carbon-oxygen double bond or a carbon-nitrogen double bond.

4. The security label of claim 3 wherein the sublimation material is elemental iodine.

5. The security label of claim 1 wherein the substrate layer comprises a first interlayer and a second interlayer in a stacked arrangement.

6. The security tag of claim 5 wherein said base layer comprises a third interlayer and a fourth interlayer in a stacked arrangement.

7. The security label of claim 6 wherein the first interlayer and the third interlayer are made of a dense material.

8. The security tag of claim 6 wherein said second interlayer and said fourth interlayer are made of a hot melt material.

9. The anti-counterfeit label according to claim 1, wherein a bonding layer and a release layer are further disposed on one side of the substrate layer away from the substrate layer.

10. The anti-counterfeit label according to any one of claims 1 to 9, wherein an image-text layer is further disposed on a side of the substrate layer away from the base layer.

Technical Field

The invention relates to the technical field of anti-counterfeiting, in particular to an anti-counterfeiting label.

Background

In the prior art, common anti-counterfeiting technologies include: ultraviolet light anti-counterfeiting, variable temperature anti-counterfeiting, texture anti-counterfeiting and the like, and the anti-counterfeiting technology can be repeatedly used, so that the risk of recycling is caused.

Disclosure of Invention

Therefore, a disposable color-changing anti-counterfeit label is needed to solve the problem that the anti-counterfeit label is recycled.

The substrate layer is made of a transparent compact material;

the base layer is arranged below the base layer in a laminated mode and is made of compact materials, the base layer is connected with the edge of the base layer in a sealing mode, a first accommodating space and a second accommodating space are arranged between the base layer and the base layer, and a sealing piece is arranged between the first accommodating space and the second accommodating space;

an indicating material disposed in the first accommodating space, an

And the sublimed material is arranged in the second accommodating space, and when the sealing element is broken, the sublimed material and the indicating material can generate color-changing addition reaction or produce colored inclusion compound.

In one embodiment, the indicator material comprises an unsaturated compound or a void structure.

In one embodiment, the unsaturated compound includes a carbon-carbon double bond, a carbon-carbon triple bond, a carbon-oxygen double bond, or a carbon-nitrogen double bond.

In one embodiment, the sublimation material is elemental iodine.

In one embodiment, the substrate layer includes a first interlayer and a second interlayer that are stacked.

In one embodiment, the base layer includes a third interlayer and a fourth interlayer that are stacked.

In one embodiment, the first interlayer and the third interlayer are made of a dense material.

In one embodiment, the second interlayer and the fourth interlayer are made of a hot melt material.

In one embodiment, the base layer is further provided with an adhesive layer and a release layer on a side away from the base layer.

In one embodiment, the side of the substrate layer away from the base layer is further provided with a graphics layer.

Above-mentioned antifalsification label, indicating material and sublimation material keep apart the setting, before the use, antifalsification label is in the dormant state, because sublimation material has sublimed characteristic, at this moment, is full of sublimation material vapour in the second accommodation space. During the use, press second accommodation space top, the sealing member breaks under the pressure action, make first accommodation space and second accommodation space UNICOM, at this moment, high concentration sublimation material steam in the second accommodation space gets into first accommodation space, and take place to change color addition reaction or generate colored inclusion compound with indicating material rapidly, thereby indicate the true and false through changing color, and it is irreversible to change color, and on the one hand, it is favorable to rapidly distinguishing the true and false to change color fast, and on the other hand, irreversible discolours and can prevent that antifalsification label from being recycled.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of an anti-counterfeit label;

FIG. 2 is a schematic structural diagram of the activated security tag shown in FIG. 1;

FIG. 3 is a schematic heat-sealed representation of the security label of FIG. 1;

FIG. 4 is an enlarged schematic view of part A of the security tag shown in FIG. 1;

FIG. 5 is a schematic structural diagram of another embodiment of a security label;

FIG. 6 is a schematic structural diagram of the activated security tag shown in FIG. 5;

FIG. 7 is a schematic heat-seal view of the security label of FIG. 5;

FIG. 8 is a schematic structural diagram of another embodiment of a security label;

FIG. 9 is a schematic structural diagram of the activated security tag shown in FIG. 8;

fig. 10 is a schematic view of the heat seal of the security label of fig. 8.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention can be embodied in many different forms than those herein described and many modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" or "in communication with" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", "vertical", "horizontal", "left", "right" and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

A time indicator will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and fig. 2, an embodiment of an anti-counterfeit label includes: a base layer 10, a base layer 20, and a color sublimation material 40.

The substrate layer 10 is used to form a first accommodating space 11 and a second accommodating space 12.

Specifically, the substrate layer 10 includes a first interlayer 101, and the first interlayer 101 is made of a transparent dense material, on one hand, the dense characteristic of which can prevent the vapor of the sublimation material 40 from passing through, and on the other hand, the transparent characteristic of which can enable a user to directly observe the color change of the indication material 30 disposed in the second accommodating space 12 through the first interlayer 101. The first accommodation space 11 is formed by partially bending upward the first interlayer 101, thereby providing it with a capacity to accommodate the sublimate material 40 and its vapor.

Alternatively, the first accommodation space 11 is formed by heating the striking plate.

Optionally, the first interlayer 101 materials include, but are not limited to: polyethylene terephthalate (PET), polyvinyl chloride (PVC) or polypropylene (PP).

In some embodiments, referring to fig. 5 and 6, the substrate layer 10 further includes a second interlayer 102, the second interlayer 102 is stacked on the first interlayer 101 near the base layer 20, and the second interlayer 102 is made of a transparent hot melt material, and the transparent hot melt material can be melted at a high temperature. Through setting up second intermediate layer 102, make substrate layer 10 accessible hot melt mode and stratum basale 20 fixed connection to avoid using the glue that contains unsaturated compound composition as bonding material, and then produce the interference to anti-fake discoloration effect.

Optionally, the second interlayer 102 materials include, but are not limited to: polyethylene (PE) or polypropylene (PP).

And a base layer 20 stacked below the base layer 10, wherein the base layer 20 is used for sealing the first and second accommodating spaces 11 and 12 and preventing the vapor of the sublimation material 40 from leaking to the outside.

Specifically, base layer 20 includes a third interlayer 201, and third interlayer 201 is made of a dense material that prevents vapors of sublimation material 40 from passing therethrough, thereby preventing vapors of sublimation material 40 from leaking out through base layer 20. The base layer 20 is connected to the edge of the substrate layer 10 in a sealing manner, referring to fig. 3, so as to prevent the vapor of the sublimation material 40 from leaking to the outside through the gap between the base layer 20 and the substrate layer 10.

Optionally, the third interlayer 201 materials include, but are not limited to: polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), aluminum foil, or other composite materials.

In some embodiments, referring to fig. 5 and fig. 6, the base layer 20 further includes a fourth interlayer 202, the fourth interlayer 202 is stacked on one side of the third interlayer 201 close to the base layer 10, the fourth interlayer 202 is made of a hot-melt material, the hot-melt material can be melted at a high temperature, and the base layer 20 can be bonded to the base layer 10 by the hot-melt method through the fourth interlayer 202, so that on one hand, the use of glue containing unsaturated compound components as a bonding material can be avoided, and interference on the anti-counterfeit color change effect can be further generated; on the other hand, the adhesion strength between the base layer 20 and the base material layer 10 can be further improved.

Optionally, the fourth interlayer 202 material includes, but is not limited to: polyethylene (PE) or polypropylene (PP).

Referring to fig. 3 and 4, the sealing element 21 is formed by weakly bonding the substrate layer 10 and the base layer 20, the sealing element 21 can be broken under the action of force, and due to the existence of the sealing element 21, the first accommodating space 11 and the second accommodating space 12 are separated into two independent spaces, so that vapor of the sublimation material 40 arranged in the first accommodating space 11 cannot enter the second accommodating space 12, and the anti-counterfeit label is in a dormant state. When a user presses the outside of the first accommodating space 11, the pressure in the first accommodating space 11 is increased along with the decrease of the volume of the first accommodating space 11, and at this time, the sealing member 21 formed by weak adhesion is easily broken under the action of the pressure, so that the first accommodating space 11 and the second accommodating space 12 are in a communication state.

Alternatively, the sealing member 21 may be formed by light pressure hot melt bonding between the substrate layer 10 and the base layer 20, which may make the substrate layer 10 and the base layer 20 in a bonded state, but has low bonding strength and is easily broken by external force.

Alternatively, the sealing element 21 may be formed by disposing a viscosity reducing material (not shown in the figure) on the base layer or the substrate layer 10, and then bonding the base layer 20 and the substrate layer 10 together by means of hot melt bonding, and by disposing the viscosity reducing material, the bonding strength between the base layer 20 and the substrate layer 10 may be greatly reduced, and the sealing element 21 may be easily broken by an external force when activated.

The indicating material 30 can perform a color-changing addition reaction with the sublimation material 40 or generate a colored inclusion compound, thereby indicating the authenticity of the product.

Specifically, the indicating material 30 is disposed in the second accommodating space 12, and can be fixedly disposed on the substrate layer 20 or the substrate layer 10, the indicating material 30 includes an unsaturated compound or a cavity structure, and when the indicating material 30 includes an unsaturated compound, the unsaturated compound and the biochemical material can undergo a color-changing addition reaction; when the indicating material 30 contains a void structure, the void structure may generate a colored inclusion compound with the sublimation material 40.

Further, unsaturated bonds are included in the unsaturated compounds, and include, but are not limited to: carbon-carbon double bonds, carbon-carbon triple bonds, carbon-oxygen double bonds, or carbon-nitrogen double bonds. When the unsaturated compound is contacted with the molecules of the sublimation material 40, the sublimation material 40 acts as an electrophilic reagent to attack double bonds or triple bonds of the unsaturated compound, the unsaturated bonds are broken under the attack of the electrophilic reagent, and the two parts of the reagent are respectively added to atoms at two ends of the unsaturated bonds, so that the colored substance is generated through an addition reaction.

Alternatively, unsaturated compounds include, but are not limited to: polyvinyl butyral, acrylic resins, polyurethane resins, tung oil, linseed oil, oleic acid, elaidic acid, castor oil, palmitic acid, palmitate, lauric acid, myristic acid, octacosane, stearic acid, palmitic acid, glyceryl stearate, methyl stearate, ethyl stearate, polyurethane, arachidic acid, acrylic acid and rosin resins. The unsaturated compound undergoes a color-changing addition reaction with molecules of the sublimation material 40, and then the color changes from colorless to brown.

The hole structure exists in the molecular structure, and can contain and trap the molecules of the sublimation material 40, so that the hole structure and the molecules of the sublimation material 40 form an inclusion compound of a main guest system together, and the inclusion compound can absorb a spectrum with a specific wavelength, thereby showing a predetermined color to the outside.

Alternatively, compounds having a hole structure include, but are not limited to: starch, cholic acid, cellulose, protein, nucleic acid, crown ether, cyclodextrin, calixarene, calixazole, cucurbituril, and pillared arene. After the hole structure material and the sublimation material 40 molecules form an inclusion compound, the color changes from initial white to purple.

It is to be understood that other unsaturated compounds having a carbon-carbon double bond, a carbon-carbon triple bond, a carbon-oxygen double bond or a carbon-nitrogen double bond, or other compounds having a hole structure may also be used as the unsaturated compound of the present invention.

In the present embodiment, the indicator 30 is an ink layer, and the indicator 30 is provided on the base layer 20 or the base material layer 10 in the second housing space 12 by printing. By utilizing mature printing technology, the efficiency of arranging the indicating material 30 is improved and the production cost is reduced.

Preferably, the initial color of the indicating material 30 is white or colorless, and the white or colorless indicating material 30 can be blended with the background color of the material of the substrate layer 20, so that it is not easily recognized by naked eyes before the authenticity is identified.

Preferably, the indicating material 30 is a specific form of graphics, and optional graphics include, but are not limited to "genuine" and company logo, so as to facilitate the user to visually judge whether the product is genuine or not.

The sublimation material 40 is disposed in the first accommodating space 11, and can perform a color-changing addition reaction with the indication material 30 or generate a colored inclusion compound.

Specifically, the sublimation material 40 is solid and can be sublimated into vapor at normal temperature, and the vapor of the sublimation material 40 can undergo a color change addition reaction with an unsaturated compound in the indicating material 30 or can form a colored inclusion compound with a hole structure in the indicating material 30, thereby causing the color change of the indicating material 30.

In another embodiment, the sublimation material 40 is wrapped with a brittle material (not shown in the figure) for reducing the sublimation speed of the sublimation material 40, preventing the sidewall of the first accommodating space 11 from steam leakage, resulting in the sublimation material 40 being completely sublimated before activation, and thus causing the device to be out of work.

In another embodiment, sublimation material 40 is the sublimation ink that has the sublimating material adsorbed, contains the adsorbed material in the sublimation ink, and the mode through setting sublimating material 40 to printing ink is favorable to reducing sublimation material 40's the cost of setting. Alternatively, the adsorbent has micropores or molecules having a cavity structure, and by providing the adsorbent in the sublimation ink, the sublimation material 40 can be made to have a slow release effect, thereby delaying the progress of the color change of the indicator material 30.

In the present embodiment, the sublimation material 40 is elemental iodine, which can be sublimated at normal temperature or even at low temperature to generate iodine vapor, and the elemental iodine sold in the market can be used as the sublimation material 40 of the present invention.

In another embodiment, referring to fig. 7 and 8, the anti-counterfeit label is further provided with an image-text layer 50.

Specifically, the image-text layer 50 is partially stacked on one side of the substrate layer 10 far away from the base layer 20, the image-text layer 50 is partially hollowed in the indication area, a user can observe the color change condition of the indication material 30 through the hollowed part, and the image-text layer 50 covers the non-indication area of the anti-counterfeit label, so that the user can conveniently observe the authenticity identification condition.

In another embodiment, referring to fig. 9 and 10, the security label is further provided with an adhesive layer 60 and a release layer 70.

Specifically, the adhesive layer 60 is stacked on the side of the base layer 20 away from the base layer 10, and the release layer 70 is stacked on the side of the adhesive layer 60 away from the base layer 20. Through setting up tie coat 60, can be convenient with the antifalsification label attached on the object surface, through setting up from type layer 70, can prevent that tie coat 60 from taking place unnecessary adhesion with article.

Above-mentioned antifalsification label, indicating material 30 and sublimation material 40 keep apart the setting, before the use, antifalsification label is in the dormant state, because sublimation material 40 has sublimed characteristic, at this moment, is full of sublimation material 40 vapour in the second accommodation space 12. During the use, press second accommodation space 12 top, sealing member 21 breaks under the pressure action, make first accommodation space 11 and second accommodation space 12 UNICOM, at this moment, high concentration sublimation material 40 steam in the second accommodation space 12 gets into first accommodation space 11, and take place to change color addition reaction or produce colored inclusion compound with indicating material 30 rapidly, thereby indicate the true and false through discolouing, and it is irreversible to change color, on the one hand, it is favorable to distinguishing the true and false rapidly to change color fast, on the other hand, irreversible discolours and can prevent that antifalsification label from being recycled.

Specific examples are as follows.

Example 1

Referring to fig. 1 to 4, the present embodiment provides an anti-counterfeit label, which includes a substrate layer 10, a base layer 20, an indicating material 30 and a sublimation material 40.

The substrate layer 10 comprises a first interlayer 101, the first interlayer 101 is made of a transparent PET film, the base layer 20 comprises a third interlayer 201, the third interlayer 201 is made of a PET film, and the edges of the base layer 20 and the substrate layer 10 are bonded through hot-melt glue. Be equipped with independent first accommodation space 11 and second accommodation space 12 between substrate layer 10 and the stratum basale 20, first accommodation space 11 is formed by the substrate layer 10 kickup, is equipped with sealing member 21 between first accommodation space 11 and the second accommodation space 12, and sealing member 21 is formed through weak bonding between stratum basale 20 and the substrate layer 10, is equipped with sublimation material 40 in the first accommodation space 11, is equipped with indicating material 30 in the second accommodation space 12. In the present embodiment, the sublimation material 40 is iodine, and the indicating material 30 is indicating ink attached to the base layer 20, and the indicating ink contains polyvinyl butyral, which is an unsaturated compound.

Above-mentioned antifalsification label, indicating material 30 and sublimation material 40 keep apart the setting, before the use, antifalsification label is in the dormant state, because sublimation material 40 has sublimed characteristic, at this moment, is full of sublimation material 40 vapour in the second accommodation space 12. During the use, press second accommodation space 12 top, sealing member 21 breaks under the pressure action, make first accommodation space 11 and second accommodation space 12 UNICOM, at this moment, high concentration sublimation material 40 steam in the second accommodation space 12 gets into first accommodation space 11, and take place the addition reaction that discolours with indicating material 30 rapidly, thereby indicate the true and false through discolouing, and discolour irreversibly, on the one hand, discolour fast and be favorable to distinguishing the true and false rapidly, on the other hand, irreversible discolours and can prevent that antifalsification label from being recycled.

Example 2

Referring to fig. 5 to 6, the present embodiment provides an anti-counterfeit label, which includes a substrate layer 10, a base layer 20, an indicating material 30 and a sublimation material 40.

The base layer 10 comprises a first interlayer 101 and a second interlayer 102 which are arranged in a stacked mode, the first interlayer 101 is made of a transparent PVC film, the second interlayer 102 is made of a transparent PE film, the base layer 20 comprises a third interlayer 201 and a fourth interlayer 202 which are arranged in a stacked mode, the third interlayer 201 is made of a PVC film, the fourth interlayer 202 is made of a PE film, and the edges of the base layer 20 and the edge of the base layer 10 are bonded with the fourth interlayer 202 through the second interlayer 102 in a hot melting mode. Be equipped with independent first accommodation space 11 and second accommodation space 12 between substrate layer 10 and the stratum basale 20, first accommodation space 11 is formed by the substrate layer 10 kickup, is equipped with sealing member 21 between first accommodation space 11 and the second accommodation space 12, and sealing member 21 is formed through weak bonding between stratum basale 20 and the substrate layer 10, is equipped with sublimation material 40 in the first accommodation space 11, is equipped with indicating material 30 in the second accommodation space 12. In the present embodiment, the sublimation material 40 is iodine, and the indicating material 30 is an indicating ink attached to the base material layer 10, and the indicating ink contains unsaturated compounds, namely acrylic resin and lauric acid.

Above-mentioned antifalsification label, indicating material 30 and sublimation material 40 keep apart the setting, before the use, antifalsification label is in the dormant state, because sublimation material 40 has sublimed characteristic, at this moment, is full of sublimation material 40 vapour in the second accommodation space 12. During the use, press second accommodation space 12 top, sealing member 21 breaks under the pressure action, make first accommodation space 11 and second accommodation space 12 UNICOM, at this moment, high concentration sublimation material 40 steam in the second accommodation space 12 gets into first accommodation space 11, and take place the addition reaction that discolours with indicating material 30 rapidly, thereby indicate the true and false through discolouing, and discolour irreversibly, on the one hand, discolour fast and be favorable to distinguishing the true and false rapidly, on the other hand, irreversible discolours and can prevent that antifalsification label from being recycled. In addition, by arranging the second interlayer 102 and the fourth interlayer 202, the substrate layer 10 can be fixedly connected with the base layer 20 in a hot melting mode, so that the situation that glue containing unsaturated compound components is used as a bonding material and further the anti-counterfeiting color-changing effect is interfered is avoided.

Example 3

Referring to fig. 7 to 8, the present embodiment provides an anti-counterfeit label, which includes a substrate layer 10, a base layer 20, an indication material 30, a sublimation material 40, and an image-text layer 50.

The base layer 10 comprises a first interlayer 101 and a second interlayer 102 which are arranged in a stacked mode, the first interlayer 101 is made of a transparent PP film, the second interlayer 102 is made of a PE film, the base layer 20 comprises a third interlayer 201 and a fourth interlayer 202 which are arranged in a stacked mode, the third interlayer 201 is made of an aluminum foil, the fourth interlayer 202 is made of a PE film, and the edges of the base layer 20 and the edge of the base layer 10 are bonded with the fourth interlayer 202 through the second interlayer 102 in a hot melting mode. Be equipped with independent first accommodation space 11 and second accommodation space 12 between substrate layer 10 and the stratum basale 20, first accommodation space 11 is formed by the substrate layer 10 kickup, is equipped with sealing member 21 between first accommodation space 11 and the second accommodation space 12, and sealing member 21 has the weak bonding between stratum basale 20 and the substrate layer 10 to form, is equipped with sublimation material 40 in the first accommodation space 11, is equipped with indicating material 30 in the second accommodation space 12. In the present embodiment, the sublimation material 40 is iodine, and the indicating material 30 is indicating ink attached to the substrate layer 10, and the indicating ink contains unsaturated compounds polyurethane and stearic acid. The graphics layer 50 is disposed on a side of the substrate layer 10 away from the base layer 20, and the graphics layer 50 is used for covering the non-indication area.

Above-mentioned antifalsification label, indicating material 30 and sublimation material 40 keep apart the setting, before the use, antifalsification label is in the dormant state, because sublimation material 40 has sublimed characteristic, at this moment, is full of sublimation material 40 vapour in the second accommodation space 12. During the use, press second accommodation space 12 top, sealing member 21 breaks under the pressure action, make first accommodation space 11 and second accommodation space 12 UNICOM, at this moment, high concentration sublimation material 40 steam in the second accommodation space 12 gets into first accommodation space 11, and take place the addition reaction that discolours with indicating material 30 rapidly, thereby indicate the true and false through discolouing, and discolour irreversibly, on the one hand, discolour fast and be favorable to distinguishing the true and false rapidly, on the other hand, irreversible discolours and can prevent that antifalsification label from being recycled. In addition, through setting up picture and text layer 50, the user of being convenient for observes the true and false and distinguishes the condition.

Example 4

Referring to fig. 9 to 10, the embodiment provides an anti-counterfeit label, which includes a substrate layer 10, a base layer 20, an indication material 30, a sublimation material 40, an image-text layer 50, an adhesive layer 60, and a release layer 70.

The base layer 10 comprises a first interlayer 101 and a second interlayer 102 which are arranged in a stacked mode, the first interlayer 101 is made of a PVC film, the second interlayer 102 is made of a PE film, the base layer 20 comprises a third interlayer 201 and a fourth interlayer 202 which are arranged in a stacked mode, the third interlayer 201 is made of a PVC film, the fourth interlayer 202 is made of a PE film, and the edges of the base layer 20 and the edge of the base layer 10 are bonded with the fourth interlayer 202 through the second interlayer 102 in a hot melting mode. Be equipped with independent first accommodation space 11 and second accommodation space 12 between substrate layer 10 and the stratum basale 20, first accommodation space 11 is formed by the substrate layer 10 kickup, is equipped with sealing member 21 between first accommodation space 11 and the second accommodation space 12, and sealing member 21 has the weak bonding between stratum basale 20 and the substrate layer 10 to form, is equipped with sublimation material 40 in the first accommodation space 11, is equipped with indicating material 30 in the second accommodation space 12. In this embodiment, the sublimation material 40 is iodine, the indication material 30 is indication ink attached to the substrate layer 10, the indication ink contains starch, and a cavity structure exists in starch molecules. The graphics layer 50 is disposed on a side of the substrate layer 10 away from the base layer 20, and the graphics layer 50 is used for covering the non-indication area. The adhesive layer 60 is laminated on the base layer 20 on the side away from the base layer 10, and the release layer 70 is laminated on the adhesive layer 60 on the side away from the base layer 20.

Above-mentioned antifalsification label, indicating material 30 and sublimation material 40 keep apart the setting, before the use, antifalsification label is in the dormant state, because sublimation material 40 has sublimed characteristic, at this moment, is full of sublimation material 40 vapour in the second accommodation space 12. During the use, press second accommodation space 12 top, sealing member 21 breaks under the pressure action, make first accommodation space 11 and second accommodation space 12 UNICOM, at this moment, high concentration sublimation material 40 steam in the second accommodation space 12 gets into first accommodation space 11, and generate colored inclusion compound with indicating material 30 rapidly, thereby indicate the true and false through discolouing, and discolour irreversibly, on the one hand, fast discolour is favorable to distinguishing the true and false rapidly, on the other hand, irreversible discolour can prevent that antifalsification label from being recycled. In addition, through setting up tie coat 60 and leaving type layer 70, can be convenient attached anti-counterfeit label on the object surface.

Example 5

This example is similar to example 4, except that the indicating material 30 is an indicating ink attached to the substrate layer 10, the indicating ink contains cellulose, and a void structure exists in the cellulose molecule.

Above-mentioned antifalsification label, indicating material 30 and sublimation material 40 keep apart the setting, before the use, antifalsification label is in the dormant state, because sublimation material 40 has sublimed characteristic, at this moment, is full of sublimation material 40 vapour in the second accommodation space 12. During the use, press second accommodation space 12 top, sealing member 21 breaks under the pressure action, make first accommodation space 11 and second accommodation space 12 UNICOM, at this moment, high concentration sublimation material 40 steam in the second accommodation space 12 gets into first accommodation space 11, and generate colored inclusion compound with indicating material 30 rapidly, thereby indicate the true and false through discolouing, and discolour irreversibly, on the one hand, fast discolour is favorable to distinguishing the true and false rapidly, on the other hand, irreversible discolour can prevent that antifalsification label from being recycled. The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.