CN221371692U - Multi-layer shading anti-counterfeiting packaging paper - Google Patents
Multi-layer shading anti-counterfeiting packaging paper Download PDFInfo
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- CN221371692U CN221371692U CN202322682007.3U CN202322682007U CN221371692U CN 221371692 U CN221371692 U CN 221371692U CN 202322682007 U CN202322682007 U CN 202322682007U CN 221371692 U CN221371692 U CN 221371692U
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- embossing
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 34
- 239000010410 layer Substances 0.000 claims abstract description 110
- 238000000576 coating method Methods 0.000 claims abstract description 107
- 239000011248 coating agent Substances 0.000 claims abstract description 101
- 238000004049 embossing Methods 0.000 claims abstract description 39
- 230000000694 effects Effects 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000011241 protective layer Substances 0.000 claims abstract description 22
- 238000007740 vapor deposition Methods 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007747 plating Methods 0.000 claims abstract description 13
- 239000003973 paint Substances 0.000 claims abstract description 10
- 230000004888 barrier function Effects 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- 239000002966 varnish Substances 0.000 claims description 6
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 238000001704 evaporation Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 230000008020 evaporation Effects 0.000 description 10
- 235000019504 cigarettes Nutrition 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000007738 vacuum evaporation Methods 0.000 description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 6
- 241000208125 Nicotiana Species 0.000 description 5
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 244000307697 Agrimonia eupatoria Species 0.000 description 2
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 235000000125 common agrimony Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000011527 polyurethane coating Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
The utility model discloses a multilayer shading anti-counterfeiting packaging paper, which belongs to the technical field of anti-counterfeiting materials and is characterized in that the multilayer shading anti-counterfeiting packaging paper sequentially comprises the following layers in sequence from bottom to top: a base material layer, an imitation embossing layer, a vapor deposition layer and a protective layer; the imitation embossed layer comprises a coating area coated with paint and a non-coating area not coated with paint, and the embossing effect is visually represented by the difference of aluminum plating brightness after the imitation embossed layer is evaporated. The utility model adopts the coating technology to replace the traditional embossing technology and the composite transfer technology, can obtain the embossing effect without damaging paper fiber, has simple and easy realization of the production technology, beautiful product and good anti-counterfeiting performance, and the obtained anti-counterfeiting packaging paper is degradable, recyclable and has good environmental protection performance.
Description
Technical Field
The utility model relates to a multilayer ground pattern anti-counterfeiting packaging paper, and belongs to the technical field of anti-counterfeiting materials.
Background
Embossing is a common process for manufacturing decorative packaging materials. At present, the embossing process in the tobacco bale industry is used everywhere, and patterns and textures with different depths can be displayed on lining paper of a large and small cigarette case and the cigarette case, so that the embossing process has relief stereoscopic impression. The cigarette case has the functions of protecting and sealing tobacco shreds, and the scientific package can keep certain moisture content of cigarettes, so that the cigarettes can be prevented from mildew after the tobacco shreds are wet in wet seasons, the tobacco shreds are not easy to lose moisture in dry seasons, and the fragrance loss and the invasion of peculiar smell of the cigarettes can be prevented.
The existing embossing effect mainly includes formation by a direct embossing process or realization by a composite transfer process. The direct embossing process is to use a die with concave-convex lines to make the pressure-bearing material generate plastic deformation under the action of certain pressure and temperature to form certain patterns, so as to carry out artistic processing on the surface of the decorative packaging material. However, under the embossing process, the huge deformation pressure can damage the fibers of the paper, the barrier property is poor, the self protection effect of the paper is lost, the cigarettes can adsorb the smell of the surrounding environment by the exposure of the cigarettes, and the flavor of the cut tobacco is quickly lost. The compound transfer process is to make the rugged graph-text effect on the film, then to coat a layer of glue between the film layer and the paper layer by using a plane coating compound mode, and after the glue is dried, the surface of the glue layer can leave the embossed film effect, and after the film is peeled off, the graph-text effect is transferred to the paper, and imitate the rugged embossed effect. However, in the practical application process, the production process of the process is complex, the film is required to be used, the production cost is increased, the film is not recyclable, is not easy to degrade and has poor environmental protection.
Disclosure of utility model
In order to solve the problems, the utility model provides a multi-layer shading anti-counterfeiting packaging paper, which can solve the technical problems of poor packaging barrier property and incapability of guaranteeing quality of products caused by damaging paper fibers by huge deformation pressure in the production process in the existing embossing technology and can also avoid the problems of high cost and environmental pollution caused by the existing composite transfer technology.
The utility model aims to solve the technical problems, and adopts the following technical scheme:
The multilayer shading anti-counterfeiting packaging paper is characterized in that the layer structure of the multilayer shading anti-counterfeiting packaging paper sequentially comprises the following components from bottom to top: a base material layer, an imitation embossing layer, a vapor deposition layer and a protective layer;
the imitation embossed layer comprises a coating area coated with paint and a non-coating area not coated with paint, and the embossing effect is visually represented by the difference of aluminum plating brightness after the imitation embossed layer is evaporated.
Further, the coating area is formed by overlapping and coating a plurality of engraving rollers according to the required effect of the product, one or more of acrylic acid type and polyurethane type ultraviolet light curing coatings are selected as the coating, and the engraving rollers are customized engraving rollers which are not used for local feeding; the difference of the aluminum plating brightness of different coatings during vapor plating is utilized to visually present an embossing effect; this is because the surface brightness of the aluminized product is related to the surface smoothness and glossiness of the material before plating, and the smoother the surface, the higher the glossiness, and the brighter the product after vacuum evaporation. After the coating formed by coating different coatings is cured by ultraviolet light reaction, the surface of the coating can shrink, wrinkle and present a special grain structure,
The surface of the coating is uneven, and the surface smoothness and glossiness are different, so that the aluminum plating brightness is different, and the embossing effect is visually presented by utilizing the brightness difference.
Further, the substrate layer is coated paper with surface smoothness not less than 3000S and quantitative range of 30-120g/m 2.
Further, the vapor deposition layer is a metal vapor deposition layer or an oxide vapor deposition layer, wherein the metal is aluminum or copper, the oxide is silicon oxide or aluminum oxide, and the thickness is 35-50nm.
Furthermore, the protective layer selects varnish, color paste or ink according to the color requirement, and has the function of protecting the vapor layer from abrasion, and simultaneously can be coated with various colors to meet the personalized requirement, so that the visual effect of the product is more attractive.
Further, the varnish of the protective layer is a polyacrylate system, and the color paste or the ink is an aqueous system.
Further, the coating wet weight of the protective layer is 5-6g/m 2.
As an optimized scheme, the multilayer embossed anti-counterfeiting packaging paper further comprises a barrier layer, wherein the barrier layer is positioned between the substrate layer and the embossing-imitating layer.
Further, the barrier layer coating wet weight is 6-10g/m 2.
Compared with the prior art, the multi-layer shading anti-counterfeiting packaging paper has the following advantages:
(1) The utility model adopts the coating technology to replace the traditional embossing technology, can obtain the embossing effect without damaging paper fiber, has simple and easy realization of the production technology, beautiful product, good anti-counterfeiting performance and stronger market competitiveness.
(2) The multi-layer shading anti-counterfeiting packaging paper has good barrier property. The water-based paint is coated on the paper substrate, and the exhaust holes of the paper are filled to seal the paper fibers, so that a uniform and compact coating is obtained, and the blocking effect is achieved.
(3) The utility model adopts the coating technology to replace the traditional composite transfer technology, and the obtained anti-counterfeiting packaging paper is degradable, recyclable and has good environmental protection performance.
Drawings
Fig. 1: the structure diagram of the multi-layer ground pattern anti-counterfeiting packaging paper in the first embodiment;
In the figure: 1. 2 parts of base material layer, 2 parts of barrier layer, 3 parts of imitation embossed layer, 31 parts of coating area, 32 parts of uncoated area, 4 parts of vapor deposition layer, 5 parts of protective layer.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings. The following disclosure provides many different embodiments for implementing different configurations of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily obscure the present utility model.
Example 1
The multilayer shading anti-counterfeiting packaging paper has a layer structure which comprises a substrate layer 1, an embossing imitation layer 3, an evaporation coating layer 4 and a protective layer 5 from bottom to top.
The base material layer 1 adopts the Minfeng paper with the concentration of 56 g/square meter. The anti-embossing layer 3 includes a coating area 31 coated with a coating material on the surface and a non-coating area 32 not coated with a coating material on the surface, and the coating area 31 is formed by superposing and coating a plurality of embossing rollers according to the desired effect of the product. The embossed-like layer 3 in this embodiment visually exhibits an embossing effect by utilizing the difference in brightness of aluminum plating of different paints at the time of vapor deposition. The effect is reflected in that the surface brightness of the aluminized product is related to the surface smoothness and glossiness of the material before plating, and the larger the surface smoothness is, the smoother the surface is; the higher the surface gloss, the brighter the vacuum evaporation. After the coating formed by coating different coatings is cured by ultraviolet light reaction, the surface of the coating can shrink and wrinkle and presents a special grain structure, the surface of the coating is uneven, and the surface smoothness and glossiness are different, so that the brightness of aluminized is different, and the embossing effect is visually presented by utilizing the brightness difference. The evaporation layer 4 is metal aluminum and has a thickness of 35nm. The protective layer 5 is varnish, and the coating wet weight is 5g/m 2.
The preparation method of the multilayer ground pattern anti-counterfeiting packaging paper of the embodiment is as follows:
1. Coating: according to the required effect of the product, different fixed plate rolls are used for carrying out superposition coating on the surface of the substrate layer 1, the total coating is carried out for 3 times, the coating coated at one time selects acrylic acid, and the plate roll is a customized plate roll A which is not fed locally; the coating for the secondary coating is polyurethane ultraviolet curing coating, and the plate roller is a customized plate roller B which is not fed locally; the coating for three times is selected from acrylic acid, the plate roller is a customized plate roller A which is not locally fed, the imitation embossing layer 3 is finally obtained through 3 times of coating, the base material is selected from 56g/m 2 Minfeng paper, and the curing mode is selected from ultraviolet curing;
2. Vapor deposition: uniformly evaporating the paper with the embossing-imitating layer 3 on vacuum evaporation equipment, wherein aluminum is selected as metal, and the thickness is 35nm to obtain an evaporation layer 4;
3. And (3) surface coating: a polyacrylate varnish was applied to the vapor deposition layer 4 to give a protective layer 5 having a coating wet weight of 5g/m 2.
Finally, the finished product packaging paper which is sequentially provided with the protective layer 5, the vapor deposition layer 4, the imitated embossed layer 3 and the base material layer 1 from top to bottom is obtained.
Example two
The multilayer shading anti-counterfeiting packaging paper sequentially comprises a substrate layer 1, a barrier layer 2, an embossing imitation layer 3, an evaporation coating layer 4 and a protective layer 5 from bottom to top.
The base material layer 1 adopts 120g/m 2 of hairyvein agrimony paper. The anti-embossing layer 3 includes a coating area 31 coated with a coating material on the surface and a non-coating area 32 not coated with a coating material on the surface, and the coating area 31 is formed by superposing and coating a plurality of embossing rollers according to the desired effect of the product. The embossed-like layer 3 in this embodiment visually exhibits an embossing effect by utilizing the difference in brightness of aluminum plating of different paints at the time of vapor deposition. The effect is reflected in that the surface brightness of the aluminized product is related to the surface smoothness and glossiness of the material before plating, and the larger the surface smoothness is, the smoother the surface is; the higher the surface gloss, the brighter the vacuum evaporation. After the coating formed by coating different coatings is cured by ultraviolet light reaction, the surface of the coating can shrink and wrinkle and presents a special grain structure, the surface of the coating is uneven, and the surface smoothness and glossiness are different, so that the brightness of aluminized is different, and the embossing effect is visually presented by utilizing the brightness difference. The evaporation layer 4 is aluminum oxide (AlOx) and has a thickness of 40nm. The protective layer 5 is water-based ink, and the coating wet weight is 6g/m 2.
The preparation method of the multilayer ground pattern anti-counterfeiting packaging paper of the embodiment is as follows:
1. Coating: coating a layer of water-based barrier coating on the substrate layer 1, selecting 120g/m 2 of hairyvein agrimony paper as a substrate, wherein the coating wet weight of the water-based barrier coating is 10g/m 2, and drying to obtain a barrier layer 2;
the water-based high-barrier coating comprises the following raw materials in parts by mass:
30-60% of polyvinyl alcohol
Polyamides 5-15
Ethylene-vinyl alcohol copolymer 35-60
Zeolite 0.5-1.5
Clay 0.5-1.5
Silica 0.5-1.5
0.5 To 1.5 portions of crystallized cellulose;
2. coating II: according to the required effect of the product, different fixed plate-making rollers are used for carrying out superposition coating on the barrier layer 2, the total coating is carried out for 4 times, the coating adopted in the 4 times of coating is acrylic acid, the plate rollers are 4 different customized plate rollers which are not subjected to local feeding, the imitation embossing layer 3 is obtained after the 4 times of coating, and the ultraviolet curing mode is selected;
3. Vapor deposition: the paper with the embossing-like layer 3 was uniformly evaporated on a vacuum evaporation apparatus, and a metal-selected aluminum oxide (AlOx) with a thickness of 40nm was used to obtain an evaporation layer 4.
4. And (3) surface coating: the vapor deposition layer 4 was coated with an aqueous ink, and the coating wet weight was 6g/m 2, to obtain a protective layer 5.
Finally, the finished product packaging paper which is sequentially provided with the protective layer 5, the vapor deposition layer 4, the embossing-imitating layer 3, the barrier layer 2 and the base material layer 1 from top to bottom is obtained.
Example III
The multilayer shading anti-counterfeiting packaging paper sequentially comprises a substrate layer 1, a barrier layer 2, an embossing imitation layer 3, an evaporation coating layer 4 and a protective layer 5 from bottom to top.
The substrate layer 1 was the people live in plenty paper of 30g/m 2. The anti-embossing layer 3 includes a coating area 31 coated with a coating material on the surface and a non-coating area 32 not coated with a coating material on the surface, and the coating area 31 is formed by superposing and coating a plurality of embossing rollers according to the desired effect of the product. The embossed-like layer 3 in this embodiment visually exhibits an embossing effect by utilizing the difference in brightness of aluminum plating of different paints at the time of vapor deposition. The effect is reflected in that the surface brightness of the aluminized product is related to the surface smoothness and glossiness of the material before plating, and the larger the surface smoothness is, the smoother the surface is; the higher the surface gloss, the brighter the vacuum evaporation. After the coating formed by coating different coatings is cured by ultraviolet light reaction, the surface of the coating can shrink and wrinkle and presents a special grain structure, the surface of the coating is uneven, and the surface smoothness and glossiness are different, so that the brightness of aluminized is different, and the embossing effect is visually presented by utilizing the brightness difference. The evaporation layer 4 is aluminum and has a thickness of 50nm. The protective layer 5 is color paste, and the coating wet weight is 6g/m 2.
The preparation method of the multilayer ground pattern anti-counterfeiting packaging paper of the embodiment is as follows:
1. coating: coating a layer of water-based barrier coating on the substrate layer 1, selecting 30g/m 2 the people live in plenty paper as a substrate, wherein the coating wet weight of the water-based barrier coating is 6g/m 2, and drying to obtain a barrier layer 2;
the water-based high-barrier coating comprises the following raw materials in parts by mass:
30-60% of polyvinyl alcohol
Polyamides 5-15
Ethylene-vinyl alcohol copolymer 35-60
Zeolite 0.5-1.5
Clay 0.5-1.5
Silica 0.5-1.5
0.5 To 1.5 portions of crystallized cellulose;
2. Coating II: according to the required effect of the product, different fixed plate-making rollers are used for carrying out superposition coating on the barrier layer 2, the total coating is carried out for 4 times, the first coating is polyurethane coating, the plate roller is a customized plate roller A with partial non-feeding, the second coating is acrylic acid, the plate roller is a customized plate roller B with partial non-feeding, the third coating is acrylic acid, the plate roller is a customized plate roller C with partial non-feeding, the coating for the 4 th coating is polyurethane coating, the plate roller is a customized plate roller D with partial non-feeding, an imitation embossing layer 3 is obtained after 4 times of coating, and the curing mode is ultraviolet curing;
3. vapor deposition: the paper with the imitation embossing layer 3 is uniformly evaporated on a vacuum evaporation device, aluminum is selected as metal, and the thickness is 50nm, so that an evaporation layer 4 is obtained.
4. And (3) surface coating: and (3) coating color paste on the evaporation layer 4, wherein the coating wet weight is 6g/m 2, and obtaining the protective layer 5.
Finally, the finished product packaging paper which is sequentially provided with the protective layer 5, the vapor deposition layer 4, the embossing-imitating layer 3, the barrier layer 2 and the base material layer 1 from top to bottom is obtained.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the utility model without departing from the spirit and scope of the utility model, which is intended to be covered by the claims.
Claims (9)
1. The multilayer shading anti-counterfeiting packaging paper is characterized in that the layer structure of the multilayer shading anti-counterfeiting packaging paper sequentially comprises: a base material layer, an imitation embossing layer, a vapor deposition layer and a protective layer;
The imitation embossed layer comprises a coating area coated with paint and a non-coating area not coated with paint, and the embossing effect is visually represented by the difference of aluminum plating brightness after the imitation embossed layer is evaporated.
2. The multi-layer embossed anti-counterfeiting packaging paper according to claim 1, wherein,
The coating area is formed by overlapping and coating a plurality of engraving rollers according to the required effect of the product, and the engraving rollers are customized engraving rollers which are not used for local feeding.
3. The multi-layer embossed anti-counterfeiting packaging paper according to claim 1, wherein,
The substrate layer is coated paper with surface smoothness not less than 3000S and quantitative range of 30-120g/m 2.
4. The multi-layer embossed anti-counterfeiting packaging paper according to claim 1, wherein,
The vapor deposition layer is a metal vapor deposition layer or an oxide vapor deposition layer, wherein the metal is aluminum or copper, the oxide is silicon oxide or aluminum oxide, and the thickness is 35-50nm.
5. The multi-layer embossed anti-counterfeiting packaging paper according to claim 1, wherein,
The protective layer is varnish, color paste or ink.
6. The multi-layer embossed anti-counterfeiting packaging paper according to claim 5, wherein,
The varnish of the protective layer is a polyacrylate system, and the color paste or the ink is an aqueous system.
7. The multi-layer embossed anti-counterfeiting packaging paper according to claim 1, wherein,
The coating wet weight of the protective layer is 5-6g/m 2.
8. The multi-layer embossed anti-counterfeiting packaging paper according to claim 1, wherein,
Also included is a barrier layer positioned between the substrate layer and the embossing-like layer.
9. The multi-layer embossed anti-counterfeiting packaging paper according to claim 8, wherein,
The coating wet weight of the barrier layer is 6-10g/m 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322682007.3U CN221371692U (en) | 2023-10-08 | 2023-10-08 | Multi-layer shading anti-counterfeiting packaging paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322682007.3U CN221371692U (en) | 2023-10-08 | 2023-10-08 | Multi-layer shading anti-counterfeiting packaging paper |
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| Publication Number | Publication Date |
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| CN221371692U true CN221371692U (en) | 2024-07-19 |
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| CN202322682007.3U Active CN221371692U (en) | 2023-10-08 | 2023-10-08 | Multi-layer shading anti-counterfeiting packaging paper |
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