CN112150908A - Large label for identifying magic particle characteristics by spraying code on adhesive surface and preparation method thereof - Google Patents

Abstract

The invention belongs to the technical field of anti-counterfeiting marks, and particularly relates to a large label for identifying characteristics of a code-sprayed magic particle on a glue surface and a preparation method thereof. The large label for identifying the magic particle characteristics by code spraying on the adhesive surface comprises a first plastic film layer, a first adhesive layer, a random identification layer, a second printing layer, a base material layer, a third adhesive layer and a digital information layer which are sequentially arranged from top to bottom, wherein the random identification layer partially covers the second printing layer; the random identification mark layer comprises a second plastic film layer, a first printing layer, a random physical characteristic layer, a third plastic film layer, a color ink layer and a second adhesive layer which are sequentially arranged from top to bottom, the information of the first printing layer comprises variable information, the random physical characteristic layer comprises random physical characteristics and adhesives, and the variable information and the random physical characteristics have corresponding relations. The large label of the invention has low preparation cost and high yield.

Description

Large label for identifying magic particle characteristics by spraying code on adhesive surface and preparation method thereof

Technical Field

The invention belongs to the technical field of anti-counterfeiting marks, and particularly relates to a large label for identifying characteristics of a code-sprayed magic particle on a glue surface and a preparation method thereof.

Background

Along with the progress of science and technology, the anti-counterfeiting means is more advanced and more diversified. In order to prevent the products of each commodity manufacturer from being counterfeited, the commodity manufacturers mostly adopt anti-counterfeiting marks to prevent the commodities produced by the manufacturers from being counterfeited.

The texture anti-counterfeiting technology is an anti-counterfeiting technology taking inherent texture characteristics of materials as anti-counterfeiting identification marks, and the important characteristic that texture distribution characteristic patterns are used for anti-counterfeiting identification marks is that each pattern is different, and the basic principle is as follows: randomly forming a texture distribution characteristic pattern, storing the texture distribution characteristic pattern into a cloud database for checking, calling out the contrast of the texture distribution characteristic pattern in the cloud database during identification, and judging whether the texture distribution characteristic pattern is false.

The anti-counterfeiting technical principle of the texture has been disclosed for many years, most of related products in the current market are texture paper products, namely, colored fibers are added into paper pulp to cause texture which can be seen by naked eyes, and then the texture is printed into the anti-counterfeiting mark, but the texture anti-counterfeiting mark has the problems of unobvious texture, poor touch and easy printing and imitation due to tiny texture particles forming the texture, and the anti-counterfeiting mark with obvious texture and good touch has large processing difficulty. For large labels of bottle bodies such as engine oil tanks and cosmetics, the attractiveness of the marks is influenced by full-page physical characteristics, the use amount of random physical characteristic particles is large, more materials are consumed, the cost is increased, in addition, the processing efficiency is low, the coating printing and information acquisition efficiency is low, and the yield is low.

Chinese patent CN 202010217263.3 discloses a random physical characteristic identification big label and a preparation method thereof, wherein the label comprises a first printing layer, a first plastic film layer, a first glue layer, a random physical characteristic layer, a second printing layer, a second plastic film layer, a color ink layer and a second glue layer, which are sequentially arranged from top to bottom. The random physical characteristic layer is formed by coating on the second printing layer, and the following problems exist in the coating process:

1) because the particles have a certain thickness, when the glue amount combined with random physical characteristics is small, scratches are easily generated on the printing layer and the second plastic film layer in the coating process, the surface effect of the mark is influenced, and the information reading of the printing layer is interfered seriously; when the glue water volume that combines with random physical characteristic is bigger, the coating is more smooth, is difficult to appear the mar, but when receiving extrusion or cross cutting, takes place to overflow easily and glues, the anti-phenomenon of gluing of sign appears in the production and processing process.

2) When coating the granule, the granule mixes in glue, because granule and glue density inconsistent, sinks easily or the come-up in the coating process, often appears coating inhomogeneous when leading to the coating, appears not having physical characteristic granule or the granule too much causes quality problems such as mar. This problem is solved to the mode that adopts manual stirring mostly at present, but direct coating occasionally certain effect after the manual stirring, but after coating a period, this problem reappears again, can not fundamentally solve this problem.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a large label with a characteristic identification function of a code-spraying magic particle on a glue surface, which is manufactured by embedding a small mark into the large label, has unique anti-counterfeiting information, is difficult to forge and can be quickly identified, the authenticity can be verified at any time in the commodity circulation process, the label is uncovered after being purchased, hidden variable information appears, the information of tracing, anti-counterfeiting, integration, prize exchange and the like of a product can be inquired, the label is uncovered, damaged and cannot be restored, secondary use is effectively prevented, and the magic particle is positioned between two films and is not easy to fall off.

The invention also provides a preparation method of the anti-counterfeiting coating, which has the advantages of low processing cost, high efficiency, high yield and uniform coating, and solves the problem of scratches or glue overflow caused by the direct anti-counterfeiting coating with the magic particle characteristic.

The invention relates to a large feature recognition label with a code-spraying magic particle on the adhesive surface, which comprises a first plastic film layer, a first adhesive layer, a random recognition identification layer, a second printing layer, a base material layer, a third adhesive layer and a digital information layer which are arranged from top to bottom in sequence,

the random identification mark layer is partially covered above the second printing layer;

the random identification layer comprises a second plastic film layer, a first printing layer, a random physical characteristic layer, a third plastic film layer, a color ink layer and a second adhesive layer which are sequentially arranged from top to bottom, wherein the information of the first printing layer comprises variable information, the random physical characteristic layer consists of random physical characteristics and an adhesive, and the variable information and the random physical characteristics have a corresponding relationship; the corresponding relationship can be a local corresponding relationship or an overall corresponding relationship, and is determined according to the needs of the client.

The information of the digital information layer comprises variable information, and the variable information of the digital information layer and the variable information of the first printing layer have a corresponding relation; the correspondence may be achieved by:

A. after variable information of the first printing layer is collected, code spraying correspondence is carried out on the digital information layer;

B. after code spraying is carried out on the code information layer, variable information of the first printing layer and variable information of the code spraying are respectively collected to correspond.

The two sides of the digital information layer are provided with easy-to-tear lines, and the labels are uncovered along the easy-to-tear lines to see the variable information of the digital information layer.

Wherein:

the magic particles are particles with random physical characteristics. The random physical characteristic is at least one of particles, bars, rings or fiber filaments which can be identified by naked eyes. Preferably, the random physical feature is at least one of a visually recognizable metallic-textured particle, bar, ring or filament, a substance that has both a distinct external feature and is capable of being separated from the marking. The thickness of the random physical characteristic layer is 1-20 μm.

The first plastic film layer, the second plastic film layer and the third plastic film layer are PET, PE, PP or PVC films, the thickness of the first plastic film layer is 10-30 μm, and the thickness of the second plastic film layer and the thickness of the third plastic film layer are 10-80 μm respectively. Preferably, the first plastic film layer is a PP or PE film, so that the product has excellent hand feeling, is softer and more comfortable, has good fitting performance, does not have the phenomena of label warping and wrinkling, and simultaneously has thermal shrinkage when the label is heated and integrally transferred, so that the label is deformed and loses efficacy.

And a solid color layer is arranged below the first printing layer. Preferably, the solid color layer is a white ink layer or a silver ink layer. The variable information is positioned above the solid color layer, so that the recognition interference of the random physical characteristics below the solid color layer can be effectively avoided.

And a local release layer is arranged below the third plastic film layer. The random identification mark layer is prevented from being completely taken out from the label and is pasted on other marks, scanning before purchase can be caused to be a true label after the random identification mark layer is pasted, and fake goods are obtained after purchase and when verification is uncovered.

And a local gloss oil layer is arranged below the digital information layer. The local gloss oil layer can reduce the force value of local uncovering by 0.5-5N/25mm, so that the local gloss oil layer can be easily uncovered from the area, and the phenomenon that the two-dimensional code is torn to deform to cause incapability of reading due to overlarge uncovering force value is avoided.

And a silicone paper layer is arranged below the digital information layer.

The invention relates to a preparation method of a large label for identifying magic particle characteristics by spraying a code on a glue surface, which comprises the following steps:

1) preparing a random identification layer:

printing image-text information below the second plastic film layer to form a first printing layer, wherein the image-text information comprises variable information;

printing a color ink layer below the third plastic film layer;

mixing the particles with random physical characteristics into the adhesive, diluting with a solvent, coating by using a compound machine, and compounding the first printing layer surface and the third plastic film layer together; wherein, the bottom of the coating material groove is provided with an airflow stirring device (the structural schematic diagram is shown in figure 6), the airflow stirring device comprises an air inlet pipe and a conduit, the air inlet pipe is communicated with the conduit, and the conduit is uniformly provided with air outlets;

fourthly, coating an adhesive below the color ink layer to form a second adhesive layer;

collecting variable information and random physical characteristics, correlating the variable information with local or all random physical characteristics through operation, and uploading the variable information and local or all random physical characteristics to a database for query;

2) printing on the base material to form a second printing layer; the base material is a non-setting adhesive base material and comprises a base material layer, a third adhesive layer and a silicone oil paper layer;

3) labeling the random identification layer on the second printing layer by using an automatic labeling machine to form a random identification layer;

4) coating an adhesive on the random identification mark layer, and compounding the adhesive with the first plastic film layer;

5) peeling off the silicone paper layer on a printing machine, then spraying a code below the third adhesive layer to form a digital information layer, and then compounding the silicone paper layers together; associating the digital information layer with the variable information of the random identification layer;

6) and when the label is die-cut, the easy-to-tear line is die-cut at the position corresponding to the digital information layer.

In the first step, a solid color layer is printed under the variable information.

And step two, after the partial release layer is printed below the third plastic film layer, the color ink layer is printed.

In the third step, the diameter of the air inlet pipe and the conduit is 6-8mm, the air pressure of the air inlet pipe is 0.2-0.5MPa, the hole spacing of the air outlet holes is 2-3cm, and the hole diameter of the air outlet holes is 0.01-0.08 cm.

In the third step, the adhesive is CF-206, the solvent is ethyl acetate, and the mass ratio of the adhesive to the solvent to the random physical characteristic particles is 100:80: 2.

In the fourth step, the adhesive is high-temperature-resistant glue, and a curing agent is added into the bi-component pressure-sensitive adhesive to improve the cohesive force of the glue.

In the step 4), the adhesive is a UV pressure-sensitive adhesive, the film laminating process is to compound the first plastic film layer and other parts together by using the UV pressure-sensitive adhesive, coat the UV pressure-sensitive adhesive on the other parts, then compound the other parts together with the first plastic film layer, and react the UV pressure-sensitive adhesive after UV light curing to bond the two parts together. Has the advantages that: because the random identification mark layer is of a multilayer structure and has obvious protrusions, the UV pressure-sensitive adhesive is compounded firstly and then cured by a UV lamp, when the UV pressure-sensitive adhesive is not irradiated by UV light, liquid flows, the two layers are compounded together in a flowing state, the glue can be fully soaked, and then the glue generates pressure sensitivity and has no flowability after being irradiated by the UV light, so that no laminating bubbles are ensured at the edge positions of the protrusions.

In the step 5), the silicone paper layer is firstly peeled off on a printing machine, then code spraying is carried out below the third adhesive layer to form a digital information layer, the digital information layer area is coated with layout gloss oil, and then the silicone paper layers are compounded together; and associating the digital information layer with the variable information of the random identification layer.

When the consumer identifies the authenticity:

1. by scanning the variable information (namely the information of the first printing layer) of the mark, the distribution condition of the random physical characteristic particles can be adjusted, and the authenticity of the anti-counterfeiting mark can be identified by comparison. In addition, the variable information can be scanned by software, then the distribution condition of the random physical characteristic particles is collected, and the system carries out self-comparison to judge the authenticity of the identification.

2. After the variable information is scanned and verified to be a genuine product, the genuine product is uncovered along the easy-to-tear line, and the functions of tracing, anti-counterfeiting, rewarding, integrating and the like can be realized through the digital information layer.

3. The random physical characteristic of the random physical characteristic layer has concave-convex feeling when touched and can be picked out.

4. When trying to maliciously take out the random identification layer from the label completely, the partial release layer corresponding to the color ink layer leaves the bottom, so that the uncovering is incomplete, the random identification is damaged, the secondary use of the random identification layer is avoided, and the counterfeiting risk is reduced.

5. When the whole transfer of sign, easily from easily tearing the separation of line punishment and destroying, lead to the incomplete influence secondary usage of sign.

Compared with the prior art, the invention has the beneficial effects that:

1. the label can verify the authenticity before purchase, solves the problem that the authenticity cannot be distinguished in the circulation process, can be checked by anyone, and can determine whether to purchase after being verified as a genuine product, thereby reducing unnecessary loss.

2. The label is formed by associating random physical characteristics which are difficult to reproduce by a random physical characteristic layer with variable information, and has uniqueness and cannot be imitated.

3. The distribution condition of random characteristic particles can be adjusted by scanning the variable information of the label, and the authenticity of the anti-counterfeiting mark can be identified by comparison. In addition, the variable information can be scanned by software, then the distribution condition of the random characteristic particles is collected, and the system carries out self-comparison to judge the authenticity of the identification. An anti-counterfeiting label which is difficult to forge and can be identified quickly is formed.

4. The label can be destroyed after being uncovered, the secondary use of the label can be effectively prevented, and the anti-counterfeiting strength is high. The random physical features are concave-convex to the hand and can be picked out. Random physical features exist between the two films (the second plastic film and the third plastic film) and the risk of processing falling off is avoided.

5. The preparation method of the invention adopts the mode of embedding the small mark into the large label to prepare the random physical characteristics on the small mark, and has the advantages of less raw material consumption, low processing cost, high efficiency and high yield. The small mark is prepared firstly, then the small mark is embedded into the large label, the random physical characteristics are difficult to process, and the finished product of the small mark is embedded into the large label, so that the finished product rate of the label can be improved, and the cost is saved. For the integral large label, once the random physical characteristics are processed, the whole large label is damaged, and unnecessary waste is caused.

6. When the random physical characteristic particles are coated, the adhesive is diluted by adopting a solvent, and the using amount of the random physical characteristic particles is controlled within a certain range, so that the particles can be uniformly coated, and the risk of glue overflow between two layers of films is avoided.

7. According to the invention, the airflow stirring device is arranged at the bottom of the coating trough, so that uniform coating of particles can be realized, the problem of nonuniform coating of particles is fundamentally solved, manpower is saved, the quality and the attractiveness of the product can be improved, and the production efficiency is ensured.

Drawings

FIG. 1 is a schematic layer structure diagram of a large label for identifying magic particle characteristics by spraying code on a glue surface;

FIG. 2 is a schematic view of a layer structure of a random identification layer in example 1;

FIG. 3 is a schematic view of a layer structure of a random identification layer in example 2;

FIG. 4 is a schematic layer structure diagram of the large label for identifying the magic particle characteristics by spraying code on the surface of the adhesive;

FIG. 5 is a schematic diagram of the exposed apparent structure of the large label for feature recognition of magic particles sprayed on the surface of the adhesive;

FIG. 6 is a schematic structural view of a gas flow stirring device according to the present invention;

in the figure: 1. a first plastic film layer; 2. a first adhesive layer; 3. randomly identifying the identification layer; 3.1, a second plastic film layer; 3.2, a first printing layer; 3.3, a random physical characteristic layer; 3.4, a third plastic film layer; 3.5, a color ink layer; 3.6, a second adhesive layer; 3.7, local release layer; 3.8, solid color layer; 4. a second printed layer; 5. a substrate layer; 6. a third adhesive layer; 7. a digital information layer; 8. a local gloss oil layer; 9. a silicone oil paper layer; 10. and (4) easily tearing the line.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

As shown in fig. 1 and fig. 2, the large feature identification label with code-sprayed magic particles on the adhesive surface comprises a first plastic film layer 1, a first adhesive layer 2, a random identification mark layer 3, a second printing layer 4, a base material layer 5, a third adhesive layer 6 and a digital information layer 7 which are arranged from top to bottom in sequence,

the random identification mark layer 3 is partially covered above the second printing layer 4;

the random identification mark layer 3 comprises a second plastic film layer 3.1, a first printing layer 3.2, a random physical characteristic layer 3.3, a third plastic film layer 3.4, a color ink layer 3.5 and a second adhesive layer 3.6 which are sequentially arranged from top to bottom, the information of the first printing layer 3.2 comprises variable information, the random physical characteristic layer 3.3 consists of random physical characteristics and adhesive, and the variable information and the random physical characteristics have corresponding relations.

The information of the digital information layer 7 comprises variable information (two-dimensional code), and the variable information (two-dimensional code) of the digital information layer 7 and the variable information (two-dimensional code) of the first printing layer 3.2 have a corresponding relation; the correspondence is realized by the following modes: after code spraying is carried out on the code information layer 7, variable information of the first printing layer 3.2 and variable information of the code spraying are respectively collected to correspond.

The easy-to-tear lines 10 are arranged at two sides of the digital information layer 7, and the variable information of the digital information layer 7 can be seen by tearing off the label along the easy-to-tear lines 10.

The magic particles are particles with random physical characteristics. The random physical characteristics are metal textured fiber filaments which can be identified by naked eyes. The thickness of the random physical feature layer 3.3 is 20 μm.

The first plastic film layer 1 is a PP film with the thickness of 30 μm.

The second plastic film layer 3.1 is a PVC film with the thickness of 60 mu m.

The third plastic film layer 3.4 is a PET film with the thickness of 50 μm.

And a silicone paper layer 9 is arranged below the digital information layer 7.

The preparation method comprises the following steps:

1) preparation of the random identification layer 3:

firstly, printing image-text information below a second plastic film layer 3.1 to form a first printing layer 3.2, wherein the image-text information comprises variable information;

printing a color ink layer 3.5 below the third plastic film layer 3.4;

mixing the random physical characteristic particles into an adhesive, diluting with a solvent, coating by using a compound machine, and compounding the 3.2 surface of the first printing layer and the 3.4 surface of the third plastic film layer; wherein, the bottom of the coating material groove is provided with an airflow stirring device (the structural schematic diagram is shown in figure 3), the airflow stirring device comprises an air inlet pipe and a conduit, the air inlet pipe is communicated with the conduit, and the conduit is uniformly provided with air outlets;

fourthly, coating an adhesive below the color ink layer 3.5 to form a second adhesive layer 3.6;

collecting variable information and random physical characteristics, correlating the variable information with local or all random physical characteristics through operation, and uploading the variable information and local or all random physical characteristics to a database for query;

2) printing on the base material to form a second printing layer 4; the base material is a non-setting adhesive base material and comprises a base material layer 5, a third adhesive layer 6 and a silicone oil paper layer 9;

3) labeling the random identification layer 3 on the second printing layer 4 by using an automatic labeling machine to form the random identification layer 3;

4) coating an adhesive on the random identification mark layer 3, and compounding the adhesive with the first plastic film layer 1;

5) peeling off the silicone paper layer 9 on a printing machine, then spraying a code below the third adhesive layer 6 to form a digital information layer 7, and then compounding the silicone paper layers 9 together; and the digital information layer 7 is associated with the variable information of the random identification mark layer 3;

6) and when the label is die-cut, the easy-to-tear line 10 is die-cut at the position corresponding to the digital information layer 7.

In the third step, the diameter of the air inlet pipe and the diameter of the conduit are 7mm, the air pressure of the air inlet pipe is 0.4MPa, the hole spacing of the air outlet holes is 2cm, and the hole diameter of the air outlet holes is 0.04 cm. The adhesive is CF-206, the solvent is ethyl acetate, and the mass ratio of the adhesive to the solvent to the random physical characteristic particles is 100:80: 2.

In the fourth step, the adhesive is high-temperature-resistant glue, and a curing agent is added into the bi-component pressure-sensitive adhesive to improve the cohesive force of the glue.

In the step 4), the adhesive is a UV pressure-sensitive adhesive, the film coating process is to compound the first plastic film layer 1 and other parts together by using the UV pressure-sensitive adhesive, coat the UV pressure-sensitive adhesive on the other parts, then compound the other parts together with the first plastic film layer 1, and react the UV pressure-sensitive adhesive after UV light curing to bond the two parts together. Has the advantages that: because random identification mark layer 3 is multilayer structure, has obvious arch, uses UV pressure sensitive adhesive to compound earlier the solidification of back UV lamp, and when UV pressure sensitive adhesive was not receiving UV light irradiation, liquid was mobile, and two-layer compound is in the same place at the flow state, and glue can soak fully, then through UV light irradiation, glue produced the pressure sensitivity, and no mobility has guaranteed that protruding border position does not have the tectorial membrane bubble.

When the consumer identifies the authenticity:

1. by scanning the variable information of the mark (namely the information of the first printing layer 3.2), the distribution condition of the random physical characteristic particles can be adjusted, and the authenticity of the anti-counterfeiting mark can be identified by comparison. In addition, the variable information can be scanned by software, then the distribution condition of the random physical characteristic particles is collected, and the system carries out self-comparison to judge the authenticity of the identification.

2. After the variable information is scanned and verified as a genuine product, the genuine product is uncovered along the easy-to-tear line 10, and the functions of tracing, anti-counterfeiting, rewarding, integrating and the like can be realized through the digital information layer 7.

3. The random physical characteristics of the random physical characteristic layer 3.3 are concave-convex to the touch and can be picked out.

4. When the mark is integrally transferred, the mark is easily separated and damaged from the easy-to-tear line 10, so that the mark is incomplete to influence secondary use.

Example 2

As shown in fig. 1 and 3, the structure of the large label for identifying magic particle features by spraying code on the adhesive surface is the same as that in embodiment 1, except that:

a solid color layer 3.8 is arranged below the first printing layer 3.2. The solid color layer 3.8 is a white ink layer 3.5. During printing, multicolor printing is adopted, one solid color layer 3.8 is printed below the first printing layer 3.2, and printing of the solid color layer 3.8 and the first printing layer 3.2 can be completed at one time.

And a local release layer 3.7 is arranged below the third plastic film layer 3.4.

And a local gloss oil layer 8 is arranged below the digital information layer 7.

The preparation method is the same as example 1, except that:

in step (i), a solid color layer 3.8 is printed under the variable information.

In the second step, after the partial release layer 3.7 is printed below the third plastic film layer 3.4, the color ink layer 3.5 is printed.

In the step 5), the silicone oil paper layer 9 is firstly stripped on a printing machine, then code spraying is carried out below the third adhesive layer 6 to form a digital information layer 7, the area of the digital information layer 7 is coated with the layout gloss oil, and then the silicone oil paper layers 9 are compounded together; and associates the digital information layer 7 with the variable information of the random identification mark layer 3.

When the consumer identifies the authenticity:

1. by scanning the variable information of the mark (namely the information of the first printing layer 3.2), the distribution condition of the random physical characteristic particles can be adjusted, and the authenticity of the anti-counterfeiting mark can be identified by comparison. In addition, the variable information can be scanned by software, then the distribution condition of the random physical characteristic particles is collected, and the system carries out self-comparison to judge the authenticity of the identification.

2. After the variable information is scanned and verified as a genuine product, the genuine product is uncovered along the easy-to-tear line 10, and the functions of tracing, anti-counterfeiting, rewarding, integrating and the like can be realized through the digital information layer 7.

3. The random physical characteristics of the random physical characteristic layer 3.3 are concave-convex to the touch and can be picked out.

4. When trying to take out the random identification layer 3 from the label completely maliciously, the partial color ink layer 3.5 corresponding to the release layer 3.7 is left as a background, so that the uncovering is incomplete, the random identification is damaged, the secondary use of the random identification layer 3 is avoided, and the counterfeiting risk is reduced.

5. When the mark is integrally transferred, the mark is easily separated and damaged from the easy-to-tear line 10, so that the mark is incomplete to influence secondary use.

It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the present invention in any way, since modifications and variations will occur to those skilled in the art upon the use of the foregoing disclosure and the appended claims. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a big labeling of gluey face sign indicating number magic grain feature recognition which characterized in that: comprises a first plastic film layer (1), a first adhesive layer (2), a random identification mark layer (3), a second printing layer (4), a base material layer (5), a third adhesive layer (6) and a digital information layer (7) which are arranged from top to bottom in sequence,

the random identification mark layer (3) is partially covered above the second printing layer (4);

the random identification mark layer (3) comprises a second plastic film layer (3.1), a first printing layer (3.2), a random physical characteristic layer (3.3), a third plastic film layer (3.4), a color ink layer (3.5) and a second adhesive layer (3.6) which are sequentially arranged from top to bottom, the information of the first printing layer (3.2) comprises variable information, the random physical characteristic layer (3.3) consists of random physical characteristics and an adhesive, and the variable information and the random physical characteristics have a corresponding relationship;

the information of the digital information layer (7) comprises variable information, and the variable information of the digital information layer (7) and the variable information of the first printing layer (3.2) have a corresponding relation;

easy-to-tear lines (10) are arranged at two sides corresponding to the digital information layer (7), and the labels are uncovered along the easy-to-tear lines (10) to see the variable information of the digital information layer (7).

2. The large label for identifying the characteristics of the glue-surface code-sprayed magic particles according to claim 1, which is characterized in that: the random physical characteristic is at least one of particles, bars, rings or fiber filaments which can be identified by naked eyes; the thickness of the random physical characteristic layer (3.3) is 1-20 μm.

3. The large label for identifying the characteristics of the glue-surface code-sprayed magic particles according to claim 1, which is characterized in that: the first plastic film layer (1), the second plastic film layer (3.1) and the third plastic film layer (3.4) are PET, PE, PP or PVC films, the thickness of the first plastic film layer (1) is 10-30 mu m, and the thicknesses of the second plastic film layer (3.1) and the third plastic film layer (3.4) are 10-80 mu m respectively.

4. The large label for identifying the characteristics of the glue-surface code-sprayed magic particles according to claim 1, which is characterized in that: a solid color layer (3.8) is arranged below the first printing layer (3.2).

5. The large label for identifying the characteristics of the glue-surface code-sprayed magic particles according to claim 1, which is characterized in that: and a local release layer (3.7) is arranged below the third plastic film layer (3.4).

6. The large label for identifying the characteristics of the glue-surface code-sprayed magic particles according to claim 1, which is characterized in that: a local gloss oil layer (8) is arranged below the digital information layer (7), and the force value of the local gloss oil layer (8) is 0.5-5N/25 mm.

7. The large label for identifying the characteristics of the glue-surface code-sprayed magic particles according to claim 1, which is characterized in that: a silicone paper layer (9) is arranged below the digital information layer (7).

8. A method for preparing the adhesive-faced code-sprayed magic particle feature identification big label as claimed in any one of claims 1 to 7, which is characterized in that: the method comprises the following steps:

1) preparing a random identification layer (3):

printing image-text information below the second plastic film layer (3.1) to form a first printing layer (3.2), wherein the image-text information comprises variable information;

secondly, printing a color ink layer (3.5) below the third plastic film layer (3.4);

mixing the particles with random physical characteristics into an adhesive, diluting with a solvent, coating with a compound machine, and compounding the surface of the first printing layer (3.2) and the third plastic film layer (3.4), wherein the bottom of the coating material tank is provided with an airflow stirring device which comprises an air inlet pipe and a guide pipe, the air inlet pipe is communicated with the guide pipe, and the guide pipe is uniformly provided with air outlet holes;

fourthly, coating an adhesive below the color ink layer (3.5) to form a second adhesive layer (3.6);

collecting variable information and random physical characteristics, correlating the variable information with local or all random physical characteristics through operation, and uploading the variable information and local or all random physical characteristics to a database for query;

2) printing on the base material to form a second printing layer (4); the base material is a non-setting adhesive base material and comprises a base material layer (5), a third adhesive layer (6) and a silicone oil paper layer (9);

3) labeling the random identification layer (3) on the second printing layer (4) by using an automatic labeling machine to form the random identification layer (3);

4) coating an adhesive on the random identification mark layer (3) and compounding the adhesive with the first plastic film layer (1);

5) stripping off the silicone paper layer (9) on a printing machine, then spraying codes below the third adhesive layer (6) to form a digital information layer (7), and then compounding the silicone paper layers (9) together; the digital information layer (7) is associated with the variable information of the random identification layer (3);

6) and when the label is die-cut, the easy-to-tear line (10) is die-cut at the position corresponding to the digital information layer (7).

9. The method of claim 8, wherein: in the third step, the diameter of the air inlet pipe and the conduit is 6-8mm, the air pressure of the air inlet pipe is 0.2-0.5MPa, the hole spacing of the air outlet holes is 2-3cm, and the hole diameter of the air outlet holes is 0.01-0.08 cm.

10. The method of claim 8, wherein: in the third step, the adhesive is CF-206, the solvent is ethyl acetate, and the mass ratio of the adhesive to the solvent to the random physical characteristic particles is 100:80: 2.

Images