CN114170888B - Double-code double-layer holographic laser anti-transfer utilization label capable of being collected at high speed and preparation method thereof - Google Patents
Double-code double-layer holographic laser anti-transfer utilization label capable of being collected at high speed and preparation method thereof Download PDFInfo
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- CN114170888B CN114170888B CN202111482680.1A CN202111482680A CN114170888B CN 114170888 B CN114170888 B CN 114170888B CN 202111482680 A CN202111482680 A CN 202111482680A CN 114170888 B CN114170888 B CN 114170888B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
- G09F3/0294—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0297—Forms or constructions including a machine-readable marking, e.g. a bar code
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/03—Forms or constructions of security seals
- G09F3/0394—Forms or constructions of security seals with violation indication by generating a random number
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/08—Fastening or securing by means not forming part of the material of the label itself
- G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F2003/0257—Multilayer
Abstract
The utility model provides a double-code double-layer holographic laser transfer-proof utilization label capable of being collected at high speed, which comprises a first substrate layer, a holographic laser information surface layer, a two-dimensional code layer, a white ink layer, a first adhesive layer, a first aluminum plating layer, a second substrate layer, an uncovering adhesive layer, a verification information layer, a second aluminum plating layer, a holographic laser information sublayer, an adhesive layer and a release layer from top to bottom in sequence; the removable holographic surface layer of the label is arranged above the uncovered adhesive layer, and the transfer-preventing holographic sublayer is arranged below the uncovered adhesive layer; the label is adhered to the surface of the article and/or its packaging by means of an adhesive release layer. The bottom retention rate of the transfer-preventing holographic sublayer after the holographic laser information surface layer is lifted can be guaranteed to be more than 99.5%, peeling is complete, the sublayer is complete and lossless, and can not be transferred completely through a conventional method, so that the label can not be transferred completely and reused. The detection grade of the two-dimensional code is more than B grade, and the two-dimensional code can be acquired and identified at high speed.
Description
Technical Field
The utility model belongs to the technical field of anti-counterfeiting materials, and particularly relates to a double-code double-layer holographic transfer-proof utilization label capable of being acquired at high speed and a preparation method thereof.
Background
The anti-fake film or label with double-layer holographic laser image is one kind of anti-fake material.
CN203386419U discloses an anti-tamper positioning anti-counterfeit label with double-layer holographic laser images, which comprises a base material (1), a first UV holographic laser coating (2), a second holographic laser coating (3), a plating layer (4), a bonding layer (5) and base paper (6) which are sequentially compounded from bottom to top, wherein the first holographic laser pattern on the first UV holographic laser coating (2) and the second holographic laser pattern on the second holographic laser coating (3) form an accurate sleeve position; the first holographic laser pattern is a hidden holographic laser pattern, and the second holographic laser pattern is a visible holographic laser pattern; the bonding layer 5 is pressure sensitive adhesive, and the base paper 6 is release paper. Uncovering the base paper, and attaching the label finished product to an object to be attached, such as a package box for sealing, and the like, wherein the holographic laser pattern II is visible at the moment; the substrate is uncovered, the first holographic laser pattern is arranged on the substrate, and at the moment, a third image holographic laser pattern and a second holographic laser pattern combined image appear on the object to be stuck. The utility model increases the anti-counterfeiting capacity of the commodity and enables a customer to easily identify the authenticity of the commodity.
CN208499172U discloses a double-layer holographic anti-counterfeiting film, which comprises a BOPET base layer, a composite imaging layer, a plating layer and an adhesive layer which are sequentially overlapped from bottom to top, wherein the composite imaging layer comprises a holographic layer a and a holographic layer B which are sequentially arranged from bottom to top, the holographic layer a is formed by molding a holographic anti-counterfeiting pattern a on the imaging layer, and the holographic layer B is formed by molding a holographic anti-counterfeiting pattern B on the imaging layer; and the thickness is moderate, and the copying is not easy. The anti-counterfeiting packaging box comprises the packaging box and the double-layer holographic anti-counterfeiting film, wherein the double-layer holographic anti-counterfeiting film covers the outer surface of the packaging box, and the anti-counterfeiting packaging box is high in anti-counterfeiting performance and difficult to copy by counterfeiters.
In practice, CN203386419U discloses an anti-uncovering type positioning anti-counterfeiting label with a double-layer holographic laser image, which comprises a base material (1), a first UV holographic laser coating (2), a second holographic laser coating (3), a plating layer (4), a bonding layer (5) and base paper (6) which are sequentially compounded from bottom to top, wherein the first holographic laser pattern on the first UV holographic laser coating (2) and the second holographic laser pattern on the second holographic laser coating (3) form an accurate sleeve position; the utility model increases the anti-counterfeiting capacity of the commodity and enables a customer to easily identify the authenticity of the commodity.
The holographic laser pattern in the technology is repeated in a large quantity due to the restriction of pattern design, printing and the like, and is free from combining the modes of randomly changeable two-dimensional codes, verification codes and the like which can be used for carrying out true and false inquiry and verification through the Internet, so that consumers of commodities can carry out true and false inquiry, verification and tracing through telephone, official networks, mobile phone APP and the like. On the other hand, in recent years, the method of inquiring, verifying and tracing the authenticity of the commodity by means of two-dimensional codes, verification codes and the like is commonly used, but how to effectively combine the commodity with the anti-counterfeit label with the holographic laser image and obtain other purposes is also a technical problem that the commodity is not easy to process.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a double-code double-layer holographic anti-transfer utilization label capable of being acquired at high speed, which comprises a first substrate layer, a holographic laser information surface layer, a two-dimensional code layer, a white ink layer, a first adhesive layer, a first aluminized layer, a second substrate layer, an uncovering adhesive layer, a verification information layer, a second aluminized layer, a holographic laser information sublayer, an adhesive layer and a release layer from top to bottom in sequence;
the first substrate layer, the holographic laser information surface layer, the two-dimensional code layer, the white ink layer, the first adhesive layer, the first aluminized layer, the second substrate layer and the uncovered adhesive layer form a removable holographic surface layer of the label; the verification information layer, the second aluminized layer, the holographic laser information sublayer and the non-drying primer layer form an anti-transfer holographic sublayer of the label; the label is adhered to the surface of the article and/or its packaging by means of a primer layer.
The detection grade of the two-dimensional code on the label finished product is preferably more than B grade, so that 100% reading of the two-dimensional code information can be ensured when 1500 labels are acquired and identified in each minute. The detection standard of the two-dimensional code level is ISO/IEC 15415, and the ABCD of the measurement result is gradually and sequentially reduced; the detection device comprises REA VeriCube. The two-dimensional code comprises a stacked two-dimensional code and a matrix two-dimensional code, wherein the two-dimensional code is generally black and rectangular and comprises a square, the square is positioned in the middle of a white ink area, the side length of the white ink blank area at the periphery of the two-dimensional code is not smaller than 1.20 times of the corresponding side length of the outer edge of the two-dimensional code, and the two-dimensional code grade reaches the grade B and grade A through the combination of ink printing blackness, whiteness of the white ink area, edge sharpness of a two-dimensional code point line, the two-dimensional code size and data digits. The two-dimensional code includes a variable two-dimensional code. The blackness of the two-dimensional code ink mark is higher than 95%, and the whiteness of the white ink area is higher than 90%.
The verification information of the holographic sublayer can be formed by combining one or more of numbers, characters, figures and images, and comprises the combination of random generation information and setting information, wherein the random generation information comprises verification codes formed by combining one or more of numbers, characters and characters; the verification code can be a digital string with anti-counterfeiting and traceability functions, which is generated by digital conversion software. The authentication information may be polychromatic and/or monochromatic.
According to the label, the holographic surface layer can be removed, so that two-dimensional codes positioned in the white ink area and surface layer holographic laser information positioned outside the white ink area can be seen; and after the holographic surface layer is uncovered, the verification information and the sublayer holographic laser information can be seen. After the label is adhered to the surface of the commodity and/or the package thereof through the non-drying primer layer, the label is difficult to separate completely and nondestructively in a mode of soft cutting of the non-drying primer by a thin blade even if the adhesive surface is very flat and smooth, namely, the transfer and reuse of the adhered label are avoided.
The value of the uncovering force formed by the uncovering adhesive layer comprises: the transverse force is 3+/-0.5N/25 mm, and the peeling strength is 0.002-0.003N/mm. And after the holographic surface layer is uncovered, exposing the transfer-preventing holographic sub-layer.
The peel force value of the first adhesive layer and the peel force value of the primer layer after the label is adhered to the surface of the commodity and/or the package thereof, all comprise: the transverse force is more than or equal to 5N/25mm, and the peeling strength is more than or equal to 0.005N/mm.
And a spot color transparent ink layer can be arranged between the verification information layer and the holographic laser information sublayer, and is printed by spot color ink and spot color channels, so that the imitation difficulty is improved, and the holographic laser information effect of the sublayer can be transmitted. The spot color is that the color is printed by a specific ink with a specific color gamut and extremely high color accuracy, instead of synthesizing the color by printing four colors such as C, M, Y, K.
The dry coating amount of the holographic laser information surface layer and the holographic laser information sublayer can be 0.5-2.0g/m 2 The nickel plate can be formed by single die pressing under the condition of single hard roller or double hard rollers, and nickel plate is adopted during die pressing. The material can be polyacrylate with relative molecular weight of 70000-90000, and comprises methyl acrylate and propyl acrylateOne or more of ethyl acrylate, n-butyl acrylate, methyl methacrylate and n-butyl methacrylate are monomers, and the thermoplastic resin is formed by crosslinking polymerization. The polyacrylate can be added with organic fluorine resin A according to the dry matter mass ratio of 1:0.03-0.05; the organic fluorine resin A is fluorine-containing polymethyl methacrylate with substantially uniform distribution of fluorine on a carbon chain, the relative molecular weight is 6000-12000, preferably 6000-8000, and the fluorine-containing polymethyl methacrylate is obtained by carrying out 1:1 interval block reaction on methyl methacrylate and perfluorononenyl phenyl ether according to the mass ratio of 1:1 under the condition of a ferrous oxalate-containing catalyst. The molding effect of polyacrylate after adding the organic fluoride A is better, the speed is faster, the demolding is easier, a holographic imaging layer with good quality can be prepared without adopting a demolding agent, and the nickel plate is free from sticking materials and the material belt is free from defects after being pressed by controlling the molding temperature and pressure; the bonding quality between the holographic laser information surface layer and the adjacent layers such as the substrate layer and the aluminized layer is good, the adhesive strength is high enough, and the bonding between the holographic laser information surface layer, the sub-layer and the adjacent layers is not affected when the adhesive layer is uncovered and the third substrate layer is peeled off, so that the holographic laser information surface layer and the sub-layer can be judged through the complete final degradation of the holographic image quality. The organic fluorine resin A is matched with the thermoplastic polyacrylate, so that proper material properties of the holographic laser information layer, including strength and toughness, are provided, the surface polarity and tension of the holographic imaging layer are reduced, and balance and compromise between the material properties and the surface properties are achieved; therefore, in addition to obtaining a high-quality holographic imaging layer, the potential adhesion to nickel plates is also significantly reduced, the controllable range of rolling temperature and pressure is expanded, and the rolling line speed is significantly increased. The perfluorononenyl phenyl ether has the following structure:
the uncovered adhesive layer can be prepared by coating and drying 1024 aqueous modified acrylic ester copolymer emulsion of Innovative technology (Guangzhou) limited company by adding organic fluorine resin B emulsion according to the dry matter mass ratio of 1:0.05-0.10, wherein the dry coating amount can be 3-10 g/square meter; the ratio ensures that the uncovering force value such as transverse force and peeling strength meets the requirements and is stable, and the uncovering force value is less subject to uneven coatingInfluence of uniformity; the organic fluorine resin B carbon chain has one end containing perfluoroalkyl group and the other end containing dimethyl malonate group, has a relative molecular weight of 800-1500, preferably 800-1000, and has the following structure, wherein C m F 2m+1 M in the radical is from 6 to 10, preferably a perfluorinated linear alkyl radical, C n H 2n The radicals are straight-chain alkyl radicals, possibly with a small number of short-chain branches, such as methyl and ethyl.
The thickness of the first aluminized layer and the second aluminized layer can be 200-600 angstroms.
The first substrate layer and the second substrate layer can be PET films, BOPET films or BOPP films with the thickness of 15-30 mu m, and when a higher binding force is required, the binding surface of the substrate layers can be subjected to corona treatment; the release layer is glassine paper or PET film with 15-30 μm of release agent such as organosilicon coated on the joint surface of the release layer and the self-adhesive layer.
The utility model relates to a preparation method of a double-code double-layer holographic laser anti-lifting label capable of being acquired at high speed, which comprises the following steps:
(1) A second substrate layer with double-sided corona is adopted, single-sided aluminizing is carried out on the second substrate layer, required glue is coated outside the aluminized layer, and drying is carried out, so that a composite film comprising a first glue layer, a first aluminized layer and the second substrate layer is formed;
(2) Coating a coating of a holographic laser information sublayer on the corona surface of a third substrate layer by adopting a single-sided corona, drying, forming holographic laser information of the sublayer by mould pressing, aluminizing, printing an optional spot color transparent ink layer on an aluminized surface, and printing verification information to form a composite film comprising the verification information layer, the optional spot color transparent ink layer, a second aluminized layer and the holographic laser information sublayer;
(3) Coating a coating of a holographic laser information surface layer on the corona surface of a first substrate layer with single-sided corona, drying, forming holographic laser information of the surface layer, printing a two-dimensional code and printing a white ink layer through mould pressing in sequence, compositing a composite film comprising a first glue layer, a first aluminized layer and a second substrate layer, which is obtained in the step (1), on the outer side of the white ink layer through a first glue layer surface, coating a coating of a uncovered glue layer on the other corona surface of the second substrate layer, and drying; and further compounding the composite film comprising the verification information layer, the optional spot color transparent ink layer, the second aluminized layer and the holographic laser information sublayer, which is obtained in the step (2), on the outer surface of the uncovered adhesive layer, wherein the outer surface of the uncovered adhesive layer is compounded with the last corona surface of the third substrate layer;
(4) Stripping the third substrate layer of the film material obtained in the step (3), coating the required glue outside the exposed holographic laser information sublayer, and drying to form an adhesive layer; cutting into single labels with required shape and size in a mode perpendicular to the lamination direction, and compositing the obtained labels to the release surface of the release layer film through the outer surface of the non-dry primer layer;
(5) And cutting and rewinding the release film adhered with the label to prepare a release film long roll adhered with the label.
The transverse stripping force between the third substrate layer and the holographic laser information sub-layer in the step (2) can be 2+/-0.5N/25 mm, and the stripping strength can be 0.001-0.015N/mm; when the thermoplastic polyacrylate used in the holographic laser information sublayer is matched with the organic fluororesin A, the addition of the organic fluororesin A is also beneficial to stabilizing and ensuring the stripping transverse force and the stripping strength. The transverse force of stripping between the non-drying primer layer and the release layer film in the step (4) can be less than or equal to 0.5N/25mm, and the stripping strength can be less than or equal to 0.0005N/mm.
In the step (3), a die pressing digital printing integrated machine can be adopted, besides the die pressing is adopted to form holographic laser information, two-dimensional codes and a white ink layer are printed in sequence, the accuracy of the positions of the holographic laser information, the two-dimensional codes and the white ink layer is guaranteed, and a die pressing machine and a digital printing machine can be adopted in sequence. Preferably, the two-dimensional code ink is waterproof, the white ink layer ink is water-based, the dry coating amount of the white ink is 10-20g per square meter, the erosion of the white ink with larger printing thickness and ink amount to the printed two-dimensional code is prevented, and the problems of edge irregularity such as reduced definition or recognition level of the two-dimensional code, edge burrs and the like are avoided.
The die pressing in the steps (2) and (3) can be carried out under the condition of double hard rollers, the die pressing pressure is controlled accurately, and the obtained holographic image has good effect. The conventional rolling mode of the hard roller and the soft rubber roller with the nickel plate has inaccurate pressure control, and the obtained holographic image effect is slightly poor. The diameter of the press roll can be 8-20cm, a heating temperature control component is arranged in the press roll provided with the nickel plate, the press roll not provided with the nickel plate is preferably provided with the heating temperature control component, and the press roll is made of stainless steel or copper alloy; the molding temperature is 150-200 ℃, the pressure is 0.1-1.0MPa, the speed is 10-50m/min, and the nickel plate is free from sticking materials and the pressed material belt is free from defects by controlling the molding temperature and the pressure. The molding pressure is the maximum pressure of the slit position between the two hard rolls, and can be set in a software control system.
In the steps (1) and (2), the aluminizing process is carried out in a vacuum aluminizing machine, and the mass purity of the aluminum wires is more than or equal to 99.5%, preferably more than or equal to 99.9%; the vacuum degree of aluminizing is less than or equal to 10Pa.
In the step (1), the first adhesive layer can be coated by 1024 aqueous modified acrylic ester copolymer emulsion of Innovative technology (Guangzhou) limited company, and the dry coating amount can be 1-3 g/square meter.
The step (4) of the adhesive without drying the primer layer can adopt ARKEMA (Acomax) ENCOR9446 aqueous polyacrylate emulsion, which has low viscosity, can be diluted, is easy to coat, has very high dry film adhesiveness, comprises a low-energy surface, can form a firm flexible film, has excellent waterproof and oxidation resistance, and can have service life of more than ten years; the dry coating amount can be 10-20 g/square meter.
In the steps, in the coating process of the holographic laser information surface layer and the sublayer, the liquid raw materials of polyacrylate and the liquid raw materials of fluorine-containing resin comprise solution type, emulsion type and water-based type; a 200-600 mesh anilox coating roller can be adopted, the coating speed is 10-60m/min, and the drying condition is 90-120 ℃ for x2-5 seconds; in the glue coating process, a 500-1000 mesh anilox coating roller can be adopted, the coating speed is 60-100m/min, and the drying condition is 120-140 ℃ for 2-6 seconds.
The double-code double-layer holographic transfer-proof utilization label capable of being acquired at high speed has the beneficial effects that:
1. the uncovering force value formed by the uncovering adhesive layer is moderate, the bottom remaining rate of the transfer-proof holographic sublayer after the holographic laser information surface layer is uncovered can be ensured to be more than 99.5%, and the transfer-proof holographic sublayer is easy to be more than 99.9%; the holographic surface layer is a two-dimensional code carrier, the transfer-preventing holographic sub-layer is a verification information carrier, and verification information such as a verification code can be checked for authenticity inquiry only by uncovering the surface layer; the holographic laser film with the verification information containing random information and the carrier being the sublayer eliminates batch copying preparation and use of the information.
2. The two-dimensional code of the holographic surface layer, especially the scanning identification information of the variable two-dimensional code, can contain partial verification information of the anti-transfer holographic sublayer, such as verification code; or after the two-dimensional codes are identified through corresponding APP scanning, all or part of verification information comprising the verification information can be obtained through calculation or stored in a commodity company server, so that commodity users can compare and judge, and authenticity inquiry, verification and tracing of the commodity can be carried out.
3. The uncovering force value of the label is stable and accurate through a double-layer coating process, so that the label can be broken and separated too quickly, the label is completely peeled, the surface layer is free from residues, and the sub-layer is complete and nondestructive.
4. Because the sublayers are not carried by PET and other films as carriers, the sublayers are directly and strongly adhered to the object to be adhered, and cannot be completely transferred by a conventional method, so that the labels cannot be completely transferred and reused.
5. The detection grade of the two-dimension code on the label finished product is more than B grade, and 100% reading of the two-dimension code information can be ensured when the label is acquired and identified every minute, such as 1500 labels.
6. When the anti-transfer holographic sublayer comprises a special color transparent ink layer, the anti-counterfeiting grade and imitation difficulty of a label product are improved, and the holographic effect of the holographic laser information sublayer is not affected; the verification code on the sublayer can be composed of numbers, characters and characters with different sizes, different fonts and different color rules, so that different marks are achieved.
7. When the mould pressing is carried out under the condition of double hard rollers, the mould pressing pressure is controlled accurately, and the quality and effect of the obtained surface layer and sub-layer holographic images are obviously improved.
Detailed Description
The utility model is further illustrated, but is not to be construed as being limited, by the following examples.
Example 1
The double-code double-layer holographic laser transfer-preventing utilization label of the embodiment is prepared by the following steps:
(1) A second substrate layer with double-sided corona is adopted, single-sided aluminizing is carried out on the second substrate layer, required glue is coated outside the aluminized layer, and drying is carried out, so that a composite film comprising a first glue layer, a first aluminized layer and the second substrate layer is formed;
(2) Coating a coating of a holographic laser information sublayer on one side of a third substrate layer by adopting the third substrate layer, drying, forming holographic laser information of the sublayer by die pressing, aluminizing, printing verification information on an aluminized surface, and forming a composite film comprising the verification information layer, a second aluminized layer and the holographic laser information sublayer;
(3) Coating a first substrate layer with a coating of a holographic laser information surface layer, drying, forming holographic laser information on the surface layer, printing a two-dimensional code and printing a white ink layer through mould pressing in sequence, compositing a composite film comprising a first glue layer, a first aluminized layer and a second substrate layer, which is obtained in the step (1) on the outer surface of the white ink layer, coating a coating of uncovering the glue layer on the outer surface of the second substrate layer, and drying; and then the composite film comprising the verification information layer, the second aluminized layer and the holographic laser information sublayer, which is obtained in the step (2), is further compounded outside the uncovered adhesive layer;
(4) Stripping the third substrate layer of the film material obtained in the step (3), coating the required glue outside the exposed holographic laser information sublayer, and drying to form an adhesive layer; cutting into single labels with required shape and size in a mode perpendicular to the lamination direction, and compositing the obtained labels to the release surface of the release layer film through the outer surface of the non-dry primer layer;
(5) And cutting and rewinding the release film adhered with the label to prepare a release film long roll adhered with the label.
In the steps (1) - (4), the substrate layers are PET films with the length of about 1000m and the width of 35cm and the thickness of 20 mu m; in the coating process of the holographic laser information surface layer and the sublayer, a 300-mesh anilox coating roller is adopted, the coating speed is 50m/min, the drying condition is 100 ℃ for x3 seconds, and the dry coating amount is 1.2g/m 2 Coating for one time; in the process of coating glue, 600 mesh is adoptedThe coating speed of the coating roller is 100m/min, the drying condition is 130 ℃ for 2.5 seconds, and the coating is carried out for 1 to 2 times according to the dry coating amount requirement. The coating of the holographic laser information sublayer in the steps (2) - (3) is thermoplastic polymethyl methacrylate resin, is water-based coating with ash content of less than or equal to 0.1m% at 800 ℃ after evaporation, and has relative molecular weight of 80000. The aluminizing process is carried out in a vacuum aluminizing machine, and the aluminizing thickness is 400 angstroms on average; the quality purity of the aluminum wires is more than or equal to 99.9 percent, and the vacuum degree of aluminum plating is 5-10Pa.
The glue used in the first glue layer in the step (1) is 1024 aqueous modified acrylic ester copolymer emulsion of Yingchuang technology (Guangzhou) limited company, and the dry coating amount is 2 g/square meter. The step (3) of uncovering the adhesive layer is obtained by coating and drying 1024 aqueous modified acrylic ester copolymer emulsion of Yingchuang technology (Guangzhou) company according to the dry matter mass ratio of 1:0.08 and adding organic fluorine resin B emulsion, wherein the dry coating amount is 6 g/square meter, the relative molecular weight of the organic fluorine resin B is 800-850, and the adhesive layer has the structure, wherein C is as follows m F 2m+1 M in the perfluoro linear alkyl is 8, C n H 2n The radical is a linear alkyl radical; the liquid raw material of the organic fluororesin B is water-based paint with ash content less than or equal to 0.1m% at 800 ℃ after being evaporated to dryness, has good compatibility with the 1024 water-based modified acrylic ester copolymer emulsion, is easy to mix uniformly, and is very stable in normal temperature storage and use within 2 days after being mixed uniformly. The glue used in the step (4) non-drying primer layer is ARKEMA (Acomax) ENCOR9446 water-based polyacrylate emulsion, the dry coating amount is 15 g/square meter, and the coating is carried out for 2 times. The two-dimensional code ink used in the step (3) is waterproof, the white ink layer ink is water-based extra white ink, and the dry coating amount of the white ink is 12 g per square meter.
The mould pressing of the steps (2) and (3) is carried out under the condition of a single hard roller, and a conventional rolling mode of a hard roller with nickel plate and a soft rubber roller is adopted; the hard rollers are made of stainless steel, and the diameters of the double rollers are 12cm; the molding conditions were 160℃and 0.8MPa, and the linear velocity was 40m/min.
In the step (2), the equipment used for printing the verification information is a Hewlett packard IndigWS 6900 digital printer, and Hewlett packard Indigo electronic ink is adopted. The content of the printed verification information is generated and controlled by software, wherein the figure and the image are unchanged, and the digital information comprising numbers, characters and words is randomly generated and comprises a plurality of colors.
The equipment used for the mould pressing and the two-dimension code and white ink layer printing in the step (3) is a mould pressing digital printing integrated machine, and after the holographic imaging layer is formed, the two-dimension code and the white ink layer are printed respectively; the two-dimensional code and the ink quantity, the content, the shape and the size of the white ink layer are generated, set and controlled by software and are networked and controlled with the Hewlett-packard Indigo WS6900 digital printer in the step (2); the matrix type two-dimension code which is generated correspondingly is square, the side length is 12mm, the matrix type two-dimension code is positioned in the middle of a square white ink area, the side length of each white ink blank area is 1.20 times of the corresponding side length of the outer edge of the two-dimension code, and the two-dimension code information comprises the name of a commodity manufacturer, the production year which are set unchanged and the digital information which comprises numbers, characters and words and is randomly generated in the step (2).
The release film in the step (4) is glassine paper with the bonding surface coated with an organosilicon release agent and the thickness of 30 mu m.
Example 2
The double-code double-layer holographic anti-transfer utilization label is prepared basically according to the steps (1) - (5) of the embodiment 1, and is different in that the thermoplastic polymethyl methacrylate resin water-based paint used in the holographic laser information sublayers of the steps (2) - (3) is added with the water-based paint of the organic fluorine resin A according to the dry matter mass ratio of 1:0.04, and the two water-based paint has good compatibility, is easy to mix uniformly, and is very stable in normal temperature storage and use within 2 days after being mixed uniformly; the fluorine-containing resin A is fluorine-containing polymethyl methacrylate with a relative molecular weight of 7000 and a substantially uniform distribution of fluorine on a carbon chain, and is prepared by carrying out 1:1 interval block reaction on methyl methacrylate and perfluorononenyl phenyl ether according to a mass ratio of 1:1 under the condition of a ferrous oxalate-containing catalyst, wherein the perfluorononenyl phenyl ether has the structure.
Example 3
The double-code double-layer holographic laser anti-transfer utilization label of the embodiment is prepared basically according to the steps (1) - (5) of the embodiment, wherein the mould pressing of the holographic laser information sublayers of the steps (2) - (3) is carried out under the condition of double hard rolls, and the hard rolls with the same nickel plate and the other hard rolls with the same stainless steel plate are adopted; the molding conditions were 180℃and 0.5MPa, and the linear velocity was 50m/min.
Example 4
The steps (1) - (5) of the embodiment 2 are basically followed to prepare the dual-code double-layer holographic transfer-preventing and utilizing label of the embodiment, wherein in the step (2), a spot color transparent ink layer is printed between the verification information layer and the second aluminized layer, a Hewlett packard electronic ink is adopted, spot color channel printing is set, and the ink quantity is 2; and (3) enabling the length of each side of the white ink blank area to be 1.35 times of the corresponding length of the outer edge of the two-dimensional code.
In the operation process of the embodiment, the coating and drying effects of all the glue and the holographic laser information surface coating are normal and meet the requirements; the combination and the compound quality between all layers are normal and meet the requirements; the holographic anti-counterfeiting effect of the removable holographic surface layer and the transfer-preventing holographic sublayer is detected to reach the standard. The blackness of the ink mark of the detected two-dimensional code is higher than 95%, and the whiteness of the white ink area is higher than 90%.
The device of the two-dimension code grade is REA VeriCube, and the detection standard is ISO/IEC 15415.
After ageing the label of the embodiment 1 and the label of the embodiment 1 for 240 hours at 80 ℃, respectively tearing off the glassine paper tapes on the side cylindrical surface of a white spirit glass bottle and the plane of the surface of a packaging box made of PP material of a souvenir, and pasting 2000 labels.
Typical cases of the main effect detection results are shown in table 1.
TABLE 1
Claims (8)
1. The double-code double-layer holographic laser transfer-proof utilization label capable of being collected at high speed comprises a first substrate layer, a holographic laser information surface layer, a two-dimensional code layer, a white ink layer, a first adhesive layer, a first aluminized layer, a second substrate layer, an uncovering adhesive layer, a verification information layer, a second aluminized layer, a holographic laser information sublayer, an adhesive layer and a release layer from top to bottom in sequence; the first substrate layer, the holographic laser information surface layer, the two-dimensional code layer, the white ink layer, the first adhesive layer, the first aluminized layer, the second substrate layer and the uncovered adhesive layer form a removable holographic surface layer of the label; the verification information layer, the second aluminized layer, the holographic laser information sublayer and the non-drying primer layer form an anti-transfer holographic sublayer of the label; the label is adhered to the surface of the commodity or the package thereof through the non-drying primer layer;
the preparation method of the double-code double-layer holographic laser transfer-proof utilization label capable of being acquired at high speed comprises the following steps of:
(1) A second substrate layer with double-sided corona is adopted, single-sided aluminizing is carried out on the second substrate layer, required glue is coated outside the aluminized layer, and drying is carried out, so that a composite film comprising a first glue layer, a first aluminized layer and the second substrate layer is formed;
(2) Coating a coating of a holographic laser information sublayer on one side of a third substrate layer, drying, forming holographic laser information of the sublayer by mould pressing, aluminizing, printing a spot color transparent ink layer on an aluminized surface, and printing verification information to form a composite film comprising the verification information layer, the spot color transparent ink layer, a second aluminized layer and the holographic laser information sublayer;
(3) Coating a first substrate layer with a coating of a holographic laser information surface layer, drying, forming holographic laser information on the surface layer, printing a two-dimensional code and printing a white ink layer through mould pressing in sequence, compositing a composite film comprising a first glue layer, a first aluminized layer and a second substrate layer, which is obtained in the step (1) on the outer surface of the white ink layer, coating a coating of uncovering the glue layer on the outer surface of the second substrate layer, and drying; and then the composite film comprising the verification information layer, the spot color transparent ink layer, the second aluminized layer and the holographic laser information sublayer, which is obtained in the step (2), is further compounded outside the uncovered adhesive layer;
(4) Stripping the third substrate layer of the film material obtained in the step (3), coating the required glue outside the exposed holographic laser information sublayer, and drying to form an adhesive layer; cutting into single labels with required shape and size in a mode perpendicular to the lamination direction, and compositing the obtained labels to the release surface of the release layer film through the outer surface of the non-dry primer layer;
(5) Cutting and rewinding the release film adhered with the label to prepare a release film long roll adhered with the label;
wherein, the stripping transverse force between the third substrate layer and the holographic laser information sub-layer in the step (2) is 2+/-0.5N/25 mm, and the stripping strength is 0.001-0.015N/mm; the molding in the steps (2) and (3) is carried out under the condition of double hard rollers, the molding temperature is 150-200 ℃, the pressure is 0.1-1.0MPa, and the speed is 10-50m/min.
2. The dual-code double-layer holographic laser anti-transfer utilization label capable of being acquired at high speed according to claim 1, wherein the detection grade of the two-dimensional code on a label finished product is more than grade B; the two-dimensional code comprises a stacked two-dimensional code and a matrix two-dimensional code, the two-dimensional code is positioned in the middle of a white ink area, and the side length of the white ink blank area at the periphery of the two-dimensional code is not less than 1.20 times of the corresponding side length of the outer edge of the two-dimensional code; the blackness of the two-dimensional code ink mark is higher than 95%, and the whiteness of the white ink area is higher than 90%.
3. The dual-code double-layer holographic laser anti-transfer utilization label capable of being acquired at high speed according to claim 1, wherein the verification information of the holographic sublayer is formed by combining one or more of numbers, characters, words, figures and images, comprises the combination of randomly generated information and set information, and comprises the verification code formed by combining one or more of numbers, characters and words; the verification code is a digital string with anti-counterfeiting and traceability functions generated by digital conversion software; the verification information is multicolor or monochromatic.
4. The dual-code dual-layer holographic anti-transfer utilization label capable of being acquired at high speed according to claim 1, wherein the stripping force value between the stripping adhesive layer and the anti-transfer holographic sub-layer comprises: the transverse force is 3+/-0.5N/25 mm, and the peeling strength is 0.002-0.003N/mm; the peel force value between the non-dry primer layer and the commodity or the package thereof comprises: the transverse force is more than or equal to 5N/25mm, and the peeling strength is more than or equal to 0.005N/mm; the stripping force value between the first adhesive layer and the first aluminized layer comprises: the transverse force is more than or equal to 5N/25mm, and the peeling strength is more than or equal to 0.005N/mm.
5. The double-code double-layer holographic laser transfer-proof utilization label capable of being collected at a high speed according to claim 4, wherein the uncovering adhesive layer is prepared by coating and drying 1024 aqueous modified acrylic ester copolymer emulsion added with organic fluorine resin B emulsion according to a dry matter mass ratio of 1:0.05-0.10, and the dry coating amount is 3-10 g/square meter; the organic fluorine resin B has a relative molecular weight of 800-1500 and a structure as follows, wherein C m F 2m+1 The radical being a perfluorinated linear alkyl radical, m being from 6 to 10, C n H 2n The radicals are linear alkyl radicals:
6. the dual-code double-layer holographic laser transfer-proof utilization label capable of being acquired at high speed as claimed in claim 1, wherein the dry coating amount of the holographic laser information surface layer and the holographic laser information sublayer is 0.5-2.0g/m 2 The nickel plate is adopted during mould pressing; the material of the holographic laser information surface layer and the holographic laser information sublayer is polyacrylate with relative molecular weight of 70000-90000, and the material comprises thermoplastic resin formed by crosslinking polymerization of one or more of methyl acrylate, ethyl acrylate, n-butyl acrylate, methyl methacrylate and n-butyl methacrylate serving as monomers.
7. The double-code double-layer holographic laser transfer-proof utilization label capable of being acquired at a high speed according to claim 6, wherein organic fluorine resin A is added into polyacrylate of a holographic laser information surface layer and a holographic laser information sublayer according to a dry matter mass ratio of 1:0.03-0.05; the organic fluorine resin A is fluorine-containing polymethyl methacrylate with a relative molecular weight of 6000-12000, and is prepared by carrying out 1:1 interval block reaction on methyl methacrylate and perfluorononenyl phenyl ether according to a mass ratio of 1:1, wherein the perfluorononenyl phenyl ether has the following structure:
8. the dual-code double-layer holographic laser transfer-proof utilization label capable of being acquired at high speed according to claim 1, wherein a spot color transparent ink layer is further arranged between the verification information layer and the holographic laser information sublayer, and is printed by spot color ink and a spot color channel; the thickness of the first aluminized layer and the second aluminized layer is 200-600 angstroms; the thickness of the first substrate layer and the second substrate layer is 15-30 mu m of PET film, BOPET film or BOPP film; the release layer is glassine paper or PET film with 15-40 μm of thickness of release agent coated on the joint surface of the release layer and the adhesive layer.
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