A 3D relief pattern imitation process

Abstract

The present invention discloses a 3D relief pattern imposition process, S1, respectively making a background pattern master with background pattern information and several unit pattern masters with unit pattern information according to the required pattern, cutting a transparent substrate into a large plate and multiple small plates according to the pattern size required for imposition; S2, coating a first covering area on one side of the large plate, and coating a second covering area on one side of the small plate; S3, copying the background pattern information; S4, copying the unit pattern information; S5, copying the unit pattern on the surface of the small plate to the surface of the large plate; S6, completing the imposition. The present invention can effectively ensure the size of the pattern after replication with high precision by forming a shading area on the contact surface of the large plate and the first coating, and forming a shading area on the contact surface of the small plate and the second coating.

Description

Technical Field

[0001] The present invention relates to the technical field of photolithography platemaking, and more specifically, to a platemaking process for a 3D relief pattern. Background Art

[0002] In the embossed holographic technology, the most important process includes making holographic embossed masters, and some holographic embossed masters often need to have a larger size, that is, wide-format holographic embossed masters. Currently, wide-format holographic embossed masters mostly use UV platemaking technology. When using UV platemaking, it is first necessary to make a large plate with background pattern information and multiple small plates with unit pattern information. Finally, the unit pattern information on the surface of all small plates is transferred to the large plate with background pattern information to achieve platemaking operations, such as Figure 1 The schematic diagram of the current copying of the background pattern plate is shown as follows: the background plate 2000 is laid flat on the operating table with the pattern 2001 facing upward, a transparent light-curing coating 3000 is coated on the upper surface of the background plate 2000, and then a large plate 4000 is covered on the surface of the coating 3000, and then an exposure film plate 5000 is covered on the upper surface of the large plate 4000, and the coating 3000 located directly below the unshielded part of the exposure film plate 5000 is cured by irradiation with a UV lamp, and finally the background plate 2000 is peeled off, and the uncured coating 3000 is removed, at which time the pattern information of the background plate 2000 is copied to the surface of the cured coating 3000, thereby realizing the transfer of the pattern information;

[0003] In actual operation, since both the large plate 4000 and the coating 3000 have a certain thickness, refraction will occur when the light is irradiated, so that the actual size β of the transferred pattern information will be slightly larger than the required size α. In order to reduce the dimensional error, the current method is to reduce the thickness of the large plate 4000 to reduce the refraction of light, thereby reducing the dimensional error. However, after the thickness of the large plate 4000 is reduced, not only the strength is reduced and it is easy to deform, which will affect the performance of the small plate splicing, but also its dimensional accuracy is still not high enough. In particular, when copying 3D pattern information with deeper textures, a thicker coating layer is required, which will also affect the dimensional accuracy of the pattern. Therefore, there is an urgent need to improve this. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a 3D relief pattern imitation process, which can effectively ensure the size of the pattern after replication with high precision by forming a shading area on the contact surface between the large plate and the first coating and a shading area on the contact surface between the small plate and the second coating.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] The present invention discloses a 3D relief pattern imposition process, comprising the following steps:

[0007] S1. Prepare a background pattern master with background pattern information and several unit pattern masters with unit pattern information according to the required patterns, and cut the transparent substrate into a large plate and multiple small plates according to the pattern size required for the imitation plate;

[0008] S2, coating a first covering area on one side of the large plate, and coating a second covering area on one side of the small plate;

[0009] S3. Copy background pattern information:

[0010] ①. Lay the background pattern master with the background pattern information facing upwards and fix it on the operating table;

[0011] ②, applying a layer of first coating on the surface of the background pattern information by means of a coating mechanism;

[0012] ③. Lay the light-shielding side of the large board on the upper surface of the background pattern master with the board facing downwards and fix it;

[0013] ④. Roll the pressure roller on the surface of the large plate to fully fill the first coating between the background pattern master and the large plate;

[0014] ⑤. The large board is irradiated from top to bottom by UV lamp. The first coating is cured in the area irradiated by UV light, while the first coating below the light-shielding area is not cured;

[0015] ⑥ Peel off the background pattern master, and copy the background pattern information onto the first coating layer that is cured on the surface of the large board;

[0016] ⑦. Complete the replication of background pattern information to form a large board with background pattern on the surface;

[0017] S4, copy unit pattern information:

[0018] ①. Lay the unit pattern information of the unit pattern master upward and fix it on the operating table;

[0019] ②, applying a layer of second coating on the surface of the unit pattern information by means of a coating mechanism;

[0020] ③. Lay the small board with the light-shielding area facing downward on the upper surface of the unit pattern master and fix it;

[0021] ④. Roll the pressure roller on the surface of the small plate so that the second coating is fully filled between the small plate and the unit pattern master;

[0022] ⑤. The small plate is irradiated from top to bottom by a UV lamp, and the second coating in the area irradiated by the UV light is cured, while the second coating below the light-shielded area is not cured;

[0023] ⑥. Peel off the unit pattern master, and copy the unit pattern information onto the second coating layer that is cured on the surface of the small board;

[0024] ⑦. Complete the replication of unit pattern information to form a small plate with a unit pattern on the surface;

[0025] S5, copying the unit pattern on the surface of the small board to the surface of the large board;

[0026] ①. Lay the large board with the background pattern facing upwards and fix it on the operating table;

[0027] ②, apply the third coating on the surface of the large board;

[0028] ③. Align and laminate several small boards with the unit patterns facing downwards on the surface of the large board;

[0029] ④. Paste shading strips on the upper part of the gaps between adjacent small boards to form a small board group;

[0030] ⑤. The third coating is fully filled between the small plate group and the large plate by rolling the pressure roller on the surface of the small plate group;

[0031] ⑥, The small board group is irradiated from top to bottom by UV lamp, and the third coating below the unit pattern is cured;

[0032] ⑦. Peel off the small board group, and copy the unit pattern on the surface of each small board to the third coating layer cured on the surface of the large board;

[0033] ⑧. Obtain a wide holographic plate with unit patterns and background patterns on the surface;

[0034] S6. Complete the imposition.

[0035] Further, in step S2, both the first covering area and the second covering area are opaque ink layers with a thickness ranging from 0.5 microns to 2 microns.

[0036] Furthermore, before step S2, a first screen and several second screens need to be produced, wherein the first screen can be screen-printed on the surface of the large board to form a first coverage area, and the second screen can be screen-printed on the surface of the small board to form a second coverage area.

[0037] Further, in step S2, both the first covering area and the second covering area are cured fourth coating.

[0038] Furthermore, before step S2, a first exposure film and several second exposure films need to be produced, wherein the first exposure film is used to produce the first coverage area, and the second exposure film is used to produce the second coverage area.

[0039] Furthermore, the fourth coating is a black opaque UV glue with a release effect.

[0040] Furthermore, the surface of the large plate with the background pattern is provided with a plurality of first positioning points, and the surface of each small plate with the unit pattern is provided with a second positioning point. When performing step S5, the small plate covers the surface of the large plate, and the second positioning point is opposite to the first positioning point.

[0041] Furthermore, the first coating, the second coating and the third coating are all transparent UV glues with release effect, and the thickness of the first coating, the second coating and the third coating is 5 micrometers to 10 micrometers.

[0042] Furthermore, in step S1, the transparent substrate is a transparent PET plate with a thickness of 0.5 mm to 1.2 mm.

[0043] Furthermore, after step S6, a plate making step is also included:

[0044] ①, Silver-plating the side of the wide holographic plate with pattern to form a silver plate;

[0045] ②, nickel is plated on the surface of the silver plate to form a nickel plate;

[0046] ③. Peel off the wide holographic plate, and transfer the unit pattern and background pattern on its surface to the nickel plate;

[0047] ④. A nickel plate having a unit pattern and a background pattern on the surface is manufactured.

[0048] The beneficial effects of the present invention are:

[0049] 1. Choose a transparent substrate with a thickness of millimeters, which effectively ensures the overall strength of the large and small boards, makes the surface smoother, prevents the deformation of the transparent substrate when the pressure roller is squeezed, and is conducive to improving the accuracy of pattern replication;

[0050] 2. Since the first covering area directly faces the first coating, when the UV light is irradiated from top to bottom, even if the light is refracted in the large board, when the light penetrates the lower surface of the large board, it is blocked by the first covering area. The range of the light irradiated in the first coating is almost consistent with the range of the background pattern information to be copied, which greatly improves the copy accuracy of the pattern, thereby effectively improving the precision of the imposition;

[0051] 3. Setting the first positioning point and the second positioning point can play a positioning role and improve the accuracy of copying the unit pattern on the surface of the large plate. In addition, since the copying accuracy of the background pattern and the unit pattern is improved, when the unit pattern and the background pattern are combined, the boundary overlap between the two is high, which effectively ensures the precision of the imposition. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the structure of the background pattern plate copied in the prior art;

[0053] Figure 2 is a schematic diagram of a background pattern master;

[0054] Figure 3 is a schematic diagram of a plurality of unit pattern masters;

[0055] Figure 4 is a schematic diagram of a first screen plate of Embodiment 1;

[0056] Figure 5 is a schematic diagram of a second screen plate of Example 1;

[0057] Figure 6 is a schematic diagram of a holographic molded master;

[0058] Figure 7 A flowchart of copying a background pattern master in Embodiment 1;

[0059] Figure 8 This is a flow chart of replicating a unit pattern master in Example 1;

[0060] Fig. 9 A structural diagram of copying a background pattern master in Embodiment 1;

[0061] Fig.10 This is a structural diagram of a replication unit pattern master in Example 1;

[0062] Fig.11 Structural diagram for making holographic molded master;

[0063] Fig.12 It is a schematic diagram of the third exposure film of Example 2;

[0064] Fig.13 It is a schematic diagram of the fourth exposure film of Example 2;

[0065] Fig.14 This is a structural diagram of copying the background pattern master in Example 2.

[0066] Reference numerals: 1, background pattern master; 101, background pattern information; 2, unit pattern master; 201, unit pattern information; 3, large plate; 301, first coverage area; 302, first positioning point; 303, first blank area; 304, background pattern; 4, small plate; 401, second coverage area; 402, second blank area; 403, second positioning point; 404, unit pattern; 5, first coating; 6, shading strip; 7, first screen; 701, first non-printing area; 702, first mesh area; 703, third positioning point; 8, second screen; 801, second non-printing area; 802, second mesh area; 803, fourth positioning point; 9, first exposure film; 901, first blocking area; 902, first light-transmitting area; 903, fifth positioning point; 10, second exposure film; 1001, second blocking area; 1002, second light-transmitting area; 1003, sixth positioning point; 11, second coating; 12, third coating; 13, fourth coating. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] like Figures 2 to 14 As shown, a 3D relief pattern imposition process includes the following steps:

[0069] S1, according to the required pattern, respectively prepare a background pattern master 1 with background pattern information 101 and several unit pattern masters 2 with unit pattern information 201, cut the transparent substrate into a large plate 3 and multiple small plates 4 according to the pattern size required for the imitation plate, the background pattern master 1 and the unit pattern master 2 are both nickel plates, the transparent substrate is a transparent PET plate, the thickness is 0.5 mm-1.2 mm, preferably 1 mm, according to the attached Figure 2 and attached Figure 3 As shown, the number of large plates 3 is one, and the number of small plates 4 is five. The number of small plates 4 depends on the number of required plate sets. A transparent substrate with a thickness of 1 mm is selected to effectively ensure the overall strength of the large plates 3 and the small plates 4, making their surface flatter and preventing the deformation of the transparent substrate when the pressure roller is squeezed, which is conducive to improving the pattern replication accuracy;

[0070] S2, coating a first covering area 301 on one side of the large plate 3, and coating a second covering area 401 on one side of the small plate 4, wherein the first covering area 301 and the second covering area 401 are both used for shading;

[0071] S3, such as Figure 7 and Fig. 9 As shown, copy the background pattern information 101:

[0072] ①, lay the background pattern information 101 of the background pattern master 1 upward and fix it on the operating table;

[0073] ②, a first coating 5 is applied on the surface of the background pattern information 101 by a coating mechanism. The first coating 5 is a transparent UV glue with a release effect. The thickness of the first coating 5 is 5 microns to 10 microns, preferably 8 microns. The pattern texture of the 3D relief pattern is deep. The first coating layer 5 with a thickness of 8 microns can effectively meet the requirements of the replication of the 3D relief pattern.

[0074] ③. Lay the first covering area 301 of the large plate 3 with one side facing downward on the upper surface of the background pattern master plate 1 and fix it;

[0075] ④, rolling the pressure roller on the surface of the large plate 3, so that the first coating 5 is fully filled between the background pattern master 1 and the large plate 3;

[0076] ⑤. The large plate 3 is irradiated from top to bottom by a UV lamp, using a 10KW mercury lamp for 5 seconds. The first coating 5 in the area irradiated by the UV light is cured, that is, the first coating 5 in the first blank area 303 is cured, and the first coating 5 in the first covering area 301 is not cured. The background pattern information 101 is copied to the surface of the cured first coating 5;

[0077] ⑥, peeling off the background pattern master 1, copying the background pattern information 101 onto the first coating layer 5 solidified on the surface of the large plate 3, forming a background pattern 304 at the first blank area 303, and after peeling off the background pattern master 1, wiping off the unsolidified first coating 5 with an organic solvent, and the organic solvent may be ethyl acetate;

[0078] ⑦, complete the copying of the background pattern information 101, and form a large plate 3 with a background pattern 304 on the surface, such as Fig. 9 As shown, since the first covering area 301 directly faces the first coating 5, when the UV light is irradiated from top to bottom, even if the light is refracted in the large board 3, when the light penetrates the lower surface of the large board 3, it is blocked by the first covering area 301. The range of the light irradiated in the first coating 5 is almost consistent with the range of the background pattern information 101 that needs to be copied, which greatly improves the copying accuracy of the pattern, thereby effectively improving the platemaking accuracy.

[0079] S4, such as Figure 8 and Fig.10 As shown, the copy unit pattern information 201:

[0080] ①, lay the unit pattern information 201 of the unit pattern master 2 upward and fix it on the operating table;

[0081] ②, coating a layer of second coating 11 on the surface of the unit pattern information 201 by a coating mechanism, the second coating 11 being consistent with the first coating 5;

[0082] ③. Lay the second covering area 401 of the small plate 4 downward on the upper surface of the unit pattern master 2 and fix it;

[0083] ④, rolling the pressure roller on the surface of the small plate 4, so that the second coating 11 is fully filled between the small plate 4 and the unit pattern master 2;

[0084] ⑤. The small plate 4 is irradiated from top to bottom by a UV lamp, using a 10KW mercury lamp for 5 seconds. The second coating 11 in the area irradiated by the UV light is cured, that is, the second coating 11 in the area of ​​the second blank area 402 of the small plate 4 is cured, and the second coating 11 below the second covering area 401 is not cured;

[0085] ⑥, peel off the unit pattern master 2, copy the unit pattern information 201 to the second coating 11 layer solidified on the surface of the small plate 4, and wipe off the unsolidified second coating 11 with an organic solvent;

[0086] ⑦. Complete the replication of the unit pattern information 201 to form a small plate 4 having a unit pattern 404 on the surface. By setting the second covering area 401, the replication accuracy of the unit pattern 404 on the surface of the small plate 4 can also be improved;

[0087] S5, such as Fig.11 As shown, the unit pattern 404 on the surface of the small board 4 is copied to the surface of the large board 3;

[0088] ①, lay the large board 3 with the background pattern 304 facing upwards and fix it on the operating table;

[0089] ②, coating the third coating 12 on the surface of the large plate 3, the third coating 12 being consistent with the first coating 5;

[0090] ③. Align and attach a plurality of small boards 4 with the unit patterns 404 facing downward to the surface of the large board 3, the number of small boards 4 being five;

[0091] ④. Paste the shading strips 6 on the upper part of the gaps between the adjacent small boards 4 to form a small board group 4. By pasting the shading strips 6, not only can the five small boards be connected to form a small board group, but also the gaps between the small boards 4 can be covered to prevent light from penetrating the gaps and irradiating the third coating 12;

[0092] ⑤. The pressure roller is rolled on the surface of the small plate group so that the third coating 12 is fully filled between the small plate group and the large plate 3;

[0093] ⑥, the small plate group is irradiated from top to bottom by a UV lamp, and a 10KW mercury lamp is used to move and irradiate above the small plate group. The irradiation time is 10 seconds, and the third coating 12 below the unit pattern 404 of the small plate group is cured, and the unit pattern information is copied to the surface of the cured third coating 12;

[0094] ⑦. Peel off the small board group, and copy the unit pattern 404 on the surface of each small board 4 onto the third coating 12 layer cured on the surface of the large board 3, and wipe off the uncured third coating 12 with an organic solvent;

[0095] ⑧. Obtaining a wide holographic plate 3 having a unit pattern 404 and a background pattern 304 on the surface;

[0096] S6, complete the imposition, forming Figure 6 Holographic molded master.

[0097] Among them, the surface of the large plate 3 with the background pattern 304 is provided with a plurality of first positioning points 302, and the surface of each small plate 4 with the unit pattern 404 is provided with a second positioning point 403. When performing step S5, the small plate 4 covers the surface of the large plate 3, and the second positioning point 403 is opposite to the first positioning point 302. The first positioning point 302 and the second positioning point 403 are set, which can play a positioning role and improve the accuracy of copying the unit pattern 404 on the surface of the large plate 3. Moreover, since the copying accuracy of the background pattern 304 and the unit pattern 404 is improved, when the unit pattern 404 and the background pattern 304 are combined, the boundary overlap between the two is high, which effectively ensures the platemaking accuracy. Moreover, through the above process, there is no need to use a registration film (not shown in the figure) for registration, which not only optimizes the process but also greatly improves the platemaking accuracy.

[0098] After step S6, the process also includes a plate-making step:

[0099] ①, silver is plated on the side of the wide holographic plate 3 with the pattern to form a silver plate;

[0100] ②, nickel is plated on the surface of the silver plate to form a nickel plate;

[0101] ③. Peel off the wide holographic plate, and transfer the unit pattern 404 and the background pattern 304 on its surface to the nickel plate;

[0102] ④. A nickel plate having a unit pattern 404 and a background pattern 304 on its surface is manufactured.

[0103] like Figure 7 and Figure 8As shown, when the first covering area 301 and the second covering area 401 are both opaque ink layers, the thickness range is 0.5 microns-2 microns, preferably 0.6 microns. When it is an opaque ink layer, it is also necessary to make a first screen plate 7 and several second screen plates 8. The first screen plate 7 can be silk-screened on the surface of the large board 3 to form the first covering area 301, and the second screen plate 8 can be silk-screened on the surface of the small board 4 to form the second covering area 401.

[0104] The steps of making the first coverage area 301 of the ink layer are:

[0105] ①, making a first screen plate 7, the first screen plate 7 includes a first non-printing area 701, a first mesh area 702 and a third positioning point 703;

[0106] ②. Lay the large board 3 flat and fix it on the operating table;

[0107] ③. Lay the first screen 7 flat on the surface of the large board 3;

[0108] ④, add opaque ink to the upper surface of the first screen 7, the ink is preferably black, and scrape the ink on the surface of the first screen 7 through a scraper, so that the ink penetrates the first mesh area 702 to the surface of the large plate 3;

[0109] ⑤. Remove the first screen 7 and dry the surface of the large plate 3, so that the surface of the large plate 3 forms a first covering area 301, a first positioning point 302 and a first blank area 303, and the first positioning point 302 is a black ink dot;

[0110] The steps of making the second coverage area 401 of the ink layer are:

[0111] ①, making a second screen plate 8, the second screen plate 8 comprising a second non-printing area 801, a second mesh area 802 and a fourth positioning point 803;

[0112] ②, lay the small board 4 flat and fix it on the operating table;

[0113] ③. Lay the second screen 8 flat on the surface of the small board 4;

[0114] ④, add opaque ink to the upper surface of the second screen 8, the ink is preferably black, and scrape the ink on the surface of the second screen 8 with a scraper, so that the ink penetrates the second mesh area 802 to the surface of the small plate 4;

[0115] ⑤. Remove the second screen 8 and dry the surface of the small plate 4, so that the second covering area 401, the second blank area 402 and the second positioning point 403 are formed on the surface of the small plate 4. The second positioning point 403 is a blank point and can transmit light;

[0116] The first covering area 301 is formed on the surface of the large board 3 and the second covering area 401 is formed on the surface of the small board 4 by screen printing. The operation is convenient and the precision is high, which is conducive to the high-precision replication of the background pattern 304. When the small board 4 is located on the upper part of the large board 3, the translucent second positioning point 403 on the surface of the small board 4 can be opposite to the first positioning point 302 (black ink dot), which can directly realize the positioning of the small board 4 and facilitate the replication of the unit pattern 404 on the surface of the large board 3.

[0117] like Figure 12 to Figure 14 As shown, when the first covering area 301 and the second covering area 401 are both the cured fourth coating 13 layer, before performing step S2, a first exposure film 9 and a plurality of second exposure films 10 need to be prepared, the first exposure film 9 is used to prepare the first covering area 301, and the second exposure film 10 is used to prepare the second covering area 401. Specifically, the fourth coating 13 is a black opaque UV glue with a release effect, and the thickness is 0.2 micrometers to 0.6 micrometers, preferably 0.3 micrometers;

[0118] The steps for making the first coverage area 301 of the fourth coating 13 are:

[0119] ①, manufacturing a first exposure film 9, wherein the first exposure film 9 comprises a first shielding area 901, a first light-transmitting area 902 and a fifth positioning point 903;

[0120] ②. Lay the large board 3 flat and fix it on the operating table;

[0121] ③, coating a layer of fourth coating 13 on the surface of the large plate 3;

[0122] ④, covering the surface of the large plate 3 with the first exposure film 9;

[0123] ⑤. The pressure roller rolls on the surface of the first exposure film 9 so that the fourth coating 13 is fully filled between the first exposure film 9 and the large plate 3;

[0124] ⑥, the first exposure film 9 is irradiated from top to bottom by a UV lamp, and a 10KW mercury lamp is used to irradiate above the first exposure film 9, and the irradiation time is 5 seconds. The fourth coating 13 at the first light-transmitting area 902 and the fifth positioning point 903 on the surface of the large board 3 is cured, and the cured black coating is the first covering area 301, and the fourth coating 13 at the first shielding area 901 is not cured;

[0125] ⑦, peel off the first exposure film 9, and wipe off the uncured fourth coating 13 with an organic solvent;

[0126] The steps for making the second coverage area 401 of the fourth coating 13 are:

[0127] ①, manufacturing a second exposure film 10, wherein the second exposure film 10 comprises a second shielding area 1001, a second light-transmitting area 1002 and a sixth positioning point 1003;

[0128] ②, lay the large and small boards 4 flat and fix them on the operating table;

[0129] ③, coating a layer of fourth coating 13 on the surface of the small plate 4;

[0130] ④, covering the surface of the small plate 4 with the second exposure film 10;

[0131] ⑤. The pressure roller rolls on the surface of the second exposure film 10 so that the fourth coating 13 is fully filled between the second exposure film 10 and the small plate 4;

[0132] ⑥, the second exposure film 10 is irradiated from top to bottom by a UV lamp, and a 10KW mercury lamp is used to irradiate above the second exposure film 10, and the irradiation time is 5 seconds. The fourth coating 13 at the second light-transmitting area 1002 on the surface of the small plate 4 is cured, and the cured black coating is the second covering area 401. The fourth coating 13 at the second shielding area 1001 and the sixth positioning point 1003 is not cured;

[0133] ⑦. Peel off the second exposure film 10 and wipe off the uncured fourth coating 13 with an organic solvent.

[0134] The difference between the fourth coating 13 and the first coating 5 is that the fourth coating 13 is black. When platemaking is performed in this manner, the first covering area 301 on the surface of the large board 3 is made of UV glue material, and the first coating 5 located around the first covering area 301 is also made of UV glue material. Therefore, it is equivalent to forming a UV glue layer composed of the first covering area 301 and the first coating 5 on the surface of the large board 3, and a background pattern 304 and a unit pattern 404 are arranged on the surface of the UV glue layer, which effectively ensures the reliability of the combination of the background pattern 304 and the unit pattern 404 with the large board 3, facilitating subsequent platemaking operations.

[0135] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A 3D relief pattern imitation process, characterized in that: The following steps are involved: S1, preparing a background pattern master (1) having background pattern information (101) and a plurality of unit pattern masters (2) having unit pattern information (201) according to the required patterns, and cutting the transparent substrate into a large plate (3) and a plurality of small plates (4) according to the pattern size required for the imitation plate; S2, coating a first covering area (301) on one side of the large plate (3), and coating a second covering area (401) on one side of the small plate (4), wherein both the first covering area (301) and the second covering area (401) are opaque ink layers; S3. Copy background pattern information (101): ①, laying the background pattern information (101) of the background pattern master (1) upwards and fixing it on the operating table; ②, applying a layer of first coating (5) on the surface of the background pattern information (101) by means of a coating mechanism; ③. Lay the first covering area (301) of the large plate (3) with one side facing downward on the upper surface of the background pattern master plate (1) and fix it; ④, rolling the pressure roller on the surface of the large plate (3) so that the first coating (5) is fully filled between the background pattern master plate (1) and the large plate (3); ⑤. The large plate (3) is irradiated from top to bottom by a UV lamp, so that the first coating (5) in the area irradiated by the UV lamp is cured, and the first coating (5) below the first covering area (301) is not cured; ⑥, peeling off the background pattern master (1), and copying the background pattern information (101) onto the first coating (5) layer that has been cured on the surface of the large plate (3); ⑦, completing the replication of the background pattern information (101), forming a large plate (3) with a background pattern (304) on the surface; S4. Copy unit pattern information (201): ①, laying the unit pattern information (201) of the unit pattern master (2) upwards and fixing it on the operating table; ②, applying a layer of second coating (11) on the surface of the unit pattern information (201) by means of a coating mechanism; ③. Lay the second covering area (401) of the small plate (4) downward on the upper surface of the unit pattern master (2) and fix it; ④, rolling the pressure roller on the surface of the small plate (4) so ​​that the second coating (11) is fully filled between the small plate (4) and the unit pattern master (2); ⑤, irradiating the small plate (4) from top to bottom with a UV lamp, so that the second coating (11) in the area irradiated by the UV lamp is cured, and the second coating (11) below the second covering area (401) is not cured; ⑥, peeling off the unit pattern master (2), and copying the unit pattern information (201) onto the second coating (11) layer solidified on the surface of the small plate (4); ⑦, completing the replication of the unit pattern information (201), forming a small plate (4) having a unit pattern (404) on the surface; S5, copying the unit pattern (404) on the surface of the small plate (4) to the surface of the large plate (3); ①, lay the background pattern (304) of the large board (3) flatly on the operating table with the background pattern (304) facing upwards; ②, coating the third coating (12) on the surface of the large plate (3); ③, aligning and laminating a plurality of small plates (4) with the unit patterns (404) facing downwards to the surface of the large plate (3); ④, pasting a shading strip (6) on the upper part of the gap between adjacent small plates (4) to form a small plate group; ⑤, rolling the pressure roller on the surface of the small plate group so that the third coating (12) is fully filled between the small plate group and the large plate (3); ⑥, irradiating the small plate group from top to bottom with a UV lamp, so that the third coating (12) located below the unit pattern (404) is cured; ⑦, peeling off the small plate group, the unit pattern (404) on the surface of each small plate (4) is copied onto the third coating (12) layer cured on the surface of the large plate (3); ⑧, obtaining a wide holographic plate having a unit pattern (404) and a background pattern (304) on the surface; S6, complete the imposition; The surface of the large plate (3) having the background pattern (304) is provided with a plurality of first positioning points (302), and the surface of each small plate (4) having the unit pattern (404) is provided with a plurality of second positioning points (403). When performing step S5, the small plate (4) covers the surface of the large plate (3), and the second positioning points (403) are opposite to the first positioning points (302).

2. A 3D relief pattern imposition process according to claim 1, characterized in that: In step S2, the thickness of the first covering area (301) and the second covering area (401) ranges from 0.5 micrometers to 2 micrometers.

3. A 3D relief pattern imposition process according to claim 2, characterized in that: Before step S2, it is also necessary to produce a first screen plate (7) and several second screen plates (8), wherein the first screen plate (7) can be screen-printed on the surface of the large plate (3) to form a first coverage area (301), and the second screen plate (8) can be screen-printed on the surface of the small plate (4) to form a second coverage area (401).

4. A 3D relief pattern imposition process according to claim 1, characterized in that: The first coating (5), the second coating (11) and the third coating (12) are all transparent UV adhesives with release effects, and the thickness of the first coating (5), the second coating (11) and the third coating (12) is 5 micrometers to 10 micrometers.

5. A 3D relief pattern imposition process according to claim 1, characterized in that: In step S1, the transparent substrate is a transparent PET plate with a thickness of 0.5 mm to 1.2 mm.

6. A 3D relief pattern imposition process according to claim 1, characterized in that: After step S6, the process also includes a plate-making step: ①, Silver-plating the side of the wide holographic plate with pattern to form a silver plate; ②, nickel is plated on the surface of the silver plate to form a nickel plate; ③, peeling off the wide holographic plate, and transferring the unit pattern (404) and the background pattern (304) on the surface of the plate to the nickel plate; ④. A nickel plate having a unit pattern (404) and a background pattern (304) on its surface is manufactured.

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