Paper reprinting process and reprinting equipment

Abstract

The invention discloses a paper reprinting process and reprinting equipment, which are used for reprinting laser paper, and include the following steps: S1, copying pattern information; S2, processing paper substrate and glue layer; S3, processing coating layer; S4, completing reprinting. The invention can remove the paper substrate, glue layer and coating layer of the laser film sample through sodium hydroxide solution and dilute sulfuric acid solution, and can transfer the information layer to the PET film through the UV glue layer, so as to realize the reprinting of the information layer pattern.

Description

Technical Field

[0001] The present invention relates to the technical field of paper reprinting, and more specifically, to a paper reprinting process and reprinting equipment. Background Art

[0002] Laser film is a film with holographic effect. By compounding the laser film on the surface of paper, laser paper for packaging can be formed. The laser paper is composed of a paper substrate 100, a glue layer 200, a coating layer 300 and an information layer 400. The information layer 400 is the pattern information of the laser paper. This information needs to be designed and produced by technical personnel. However, in the actual production process, when a type of laser paper is not produced for a long time, coupled with the company's personnel turnover and inadequate management, it is very likely that there will be samples but the laser film pattern information data will be lost. Therefore, it is urgently necessary to design a reprinting process that can be made according to the sample and produce a reprinting process that is consistent with the sample pattern information. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a paper reprinting process and reprinting equipment. The paper substrate, glue layer and coating layer of the laser film sample can be removed by sodium hydroxide solution and dilute sulfuric acid solution, and the information layer can be transferred to the PET film through the UV glue layer to realize the reprinting of the information layer pattern.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a paper reprinting process for reprinting laser paper, wherein the laser paper comprises a paper substrate, a glue layer, a plating layer and an information layer; and is characterized in that it comprises the following steps:

[0005] S1. Copy pattern information:

[0006] ①. Place the information layer upward on the operating table of the paper reprinting equipment;

[0007] ②Use UV platemaking equipment to evenly coat a layer of UV adhesive on the surface of the information layer;

[0008] ③. Cover the surface of the UV adhesive layer with a layer of transparent PET film;

[0009] ④. Use UV lamp to expose the UV adhesive layer and cure it;

[0010] S2. Processing paper substrate and glue layer:

[0011] ①, installing the laser paper processed in step S1 into the transfer mechanism of the copying equipment;

[0012] ②, transfer the laser paper to the first treatment tank filled with sodium hydroxide solution through the transfer mechanism for immersion;

[0013] ③. Clean the paper substrate and glue layer that fall off the surface of the laser paper to form a PET laser film with pattern information;

[0014] ④. Transfer the PET laser film to the first cleaning tank filled with pure water through the transfer mechanism to remove the residual paper substrate and glue layer;

[0015] S3. Processing coating:

[0016] ①, transfer the PET laser film to the second treatment tank filled with dilute sulfuric acid solution through the transfer mechanism for immersion;

[0017] ②. Clean the coating of PET laser film;

[0018] ③. Use the transfer mechanism to transfer the PET laser film to the second cleaning tank filled with pure water for cleaning to remove the residual coating;

[0019] S4. Complete the reprint.

[0020] Furthermore, after step S4, the process further includes making a nickel plate:

[0021] ① Take out the PET laser film from the reprinting equipment, place it in the electroforming tank, and use the sensitizing solution to sensitize the information layer to form a sensitized layer on the surface of the information layer;

[0022] ②, pouring the silver solution and the reducing agent into the electroforming tank, so as to form a silver layer having the same pattern information as the information layer on the surface of the sensitized layer;

[0023] ③. Take the component in step ② out of the electroforming tank, apply a circle of conductive glue on the periphery of the component in step ②, and then stick the conductive plate on the side of the PET film away from the silver layer. The conductive plate and the PET film are connected by the conductive glue;

[0024] ④, placing the component of step ③ back into the electroforming tank, and adding nickel beads into the electroforming tank, and electrolyzing the component of step ③ in the electroforming tank so that the nickel beads are decomposed and adsorbed onto the surface of the silver layer to form a nickel layer;

[0025] ⑤. Take out the component of step ④ from the electroforming tank and peel it off at the sensitized layer to form a nickel plate with pattern information.

[0026] Furthermore, in step S1, the thickness of the UV adhesive layer is 0.05 mm-0.1 mm, and the thickness of the PET film is 120 μm-200 μm.

[0027] Furthermore, in step S2, the laser paper is placed in the transfer mechanism with the paper substrate facing upward, the ratio of sodium hydroxide to water is 1:10, and the surface of the PET laser film is checked by a dust-free lamp during cleaning in the first cleaning tank, and the immersion time is 20min-30min.

[0028] Further, in step S3, the coating is a zinc sulfide layer, the ratio of dilute sulfuric acid to water is 1:50, and the immersion time is 5 min-10 min.

[0029] Further, the sensitizing solution is a solution of hydrochloric acid, stannous chloride and pure water, the silver solution is a solution of silver nitrate, sodium hydroxide and pure water, and the reducing agent is a mixed solution of glucose and water;

[0030] In step ②, pour the silver solution and reducing agent into the silver plating tank in a ratio of 1:1 and shake evenly until the silver layer precipitates.

[0031] A paper copying device comprises a main support and a transfer mechanism, wherein a conveying device is arranged above the main support, and the conveying device can drive the transfer mechanism to move, and an operating table, a first processing tank, a first cleaning tank, a second processing tank and a second cleaning tank are arranged in sequence on the upper part of the main support along the moving direction of the transfer mechanism;

[0032] The transfer mechanism includes a placement rack, a movable plate, a driving mechanism and a lifting mechanism arranged from bottom to top. The laser paper can be fixed on the upper part of the placement rack. The movable plate is connected to the placement rack through a connecting group. The driving mechanism can drive the placement rack to move back and forth. The lifting mechanism can drive the placement rack to move up and down. The lifting mechanism is connected to the conveying device.

[0033] Furthermore, the placement rack moves back and forth through a screw drive, a third support frame is provided on the upper part of the movable plate, a first slide is provided on the upper part of the third support frame, the driving mechanism includes a lifting plate, a second screw rod, a second guide rod and a third motor are connected to the lower part of the lifting plate, the third motor can drive the second screw rod to rotate, the first slide is respectively sleeved on the outside of the second screw rod and the second guide rod, and the first slide is connected to the second screw rod by threads.

[0034] Furthermore, the lifting mechanism includes a support plate, an electric push rod is installed on the upper part of the support plate, the lifting end of the electric push rod is connected to the upper part of the lifting plate, a plurality of third guide rods are provided on the upper part of the lifting plate, the third guide rods penetrate the support plate, and the electric push rod can drive the placement rack to rise and fall.

[0035] Furthermore, the conveying device is a screw conveying device, and the sides of the operating table, the first treatment pool, the first cleaning pool, the second treatment pool and the second cleaning pool are all provided with bosses, and a sensor group is provided on the upper part of the boss, and the sensor group includes a plurality of sensors, and the transfer mechanism includes a protrusion, and the protrusion can face the corresponding sensor.

[0036] In summary, the present invention has the following beneficial effects:

[0037] 1. After the laser paper passes through sodium hydroxide solution and dilute sulfuric acid solution, the paper substrate, glue layer and coating layer in the laser paper can be removed, and the information layer can be transferred to the PET film through the UV glue layer to achieve the replica of the information layer pattern, which effectively solves the problem that the laser paper cannot be reproduced when there is only a laser paper sample but no laser film pattern information data;

[0038] 2. When the placement rack is immersed in the first treatment tank or the second treatment tank, the reciprocating movement of the placement rack can shake off the residual substances after separation, thereby improving the separation effect and high efficiency. When the placement rack is located in the first cleaning tank or the second cleaning tank, the cleaning effect can also be improved, and the placement rack can be moved by means of a screw drive to achieve uniform speed movement, so that the impact of the solution on the laser paper is small, thus avoiding deformation of the laser paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 For the replica process flow chart;

[0040] Figure 2 Create a process flow chart for the nickel plate;

[0041] Figure 3 It is the front view of the replica device;

[0042] Figure 4 It is a structural schematic diagram of the copying device;

[0043] Figure 5 for Figure 4 A magnified view at point A;

[0044] Figure 6 It is a structural schematic diagram of the transfer mechanism at the first viewing angle;

[0045] Figure 7 is a schematic diagram of the structure of the transfer mechanism at a second viewing angle;

[0046] Figure 8 for Figure 7 Enlarged view at B.

[0047] 1. Main support; 11. Operating table; 111. First support frame; 12. First treatment tank; 13. First cleaning tank; 14. Second treatment tank; 15. Second cleaning tank; 16. Splashproof tank; 17. Rotating cylinder; 18. Boss; 19. Second support frame; 2. Conveying device; 21. First screw rod; 22. First guide rod; 23. First motor; 3. Placement frame; 31. First hinge seat; 32. Notch; 4. Pressure strip; 41. Buckle; 5. Movable plate; 51. Third support frame; 52. First slide seat; 53. Second hinge seat; 54. Second motor; 55. Gear; 56. Boss; 57. Dust-free lamp; 6. Connecting group; 61. Connecting rod; 62. Limiting rod ; 63. lifting rod; 64. spur rack; 7. driving mechanism; 71. lifting plate; 72. second screw rod; 73. third motor; 74. second guide rod; 75. third guide rod; 8. lifting mechanism; 81. support plate; 82. electric push rod; 83. second slide seat; 9. sensor group; 91. first in-position sensor; 92. second in-position sensor; 93. third in-position sensor; 94. fourth in-position sensor; 100. paper substrate; 200. glue layer; 300. plating layer; 400. information layer; 500. UV glue layer; 600. PET film; 700. sensitizing layer; 800. silver layer; 900. conductive glue; 1000. conductive plate; 2000. nickel layer. DETAILED DESCRIPTION

[0048] 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.

[0049] like Figures 1 to 8 As shown, this embodiment discloses a paper reprinting process for reprinting laser paper, wherein the laser paper comprises a paper substrate 100, a glue layer 200, a coating layer 300 and an information layer 400; and is characterized in that it comprises the following steps:

[0050] S1. Copy pattern information:

[0051] ①, placing the information layer 400 upward on the operating table 11 of the paper reprinting equipment;

[0052] ②, a layer of UV adhesive layer 500 is evenly coated on the surface of the information layer 400 by UV platemaking equipment, and the thickness of the UV adhesive layer 500 is 0.05mm-0.1mm;

[0053] ③. Cover the surface of the UV adhesive layer 500 with a layer of transparent PET film 600, the thickness of the PET film 600 is 120μm-200μm;

[0054] ④. Use UV lamp to expose the UV adhesive layer 500 and cure it. The exposure intensity and time are adjusted according to the pattern information content;

[0055] S2, processing the paper substrate 100 and the glue layer 200:

[0056] ①, installing the laser paper processed in step S1 into the transfer mechanism of the copying equipment;

[0057] ②, transfer the laser paper to the first treatment tank 12 filled with sodium hydroxide solution through the transfer mechanism, put the laser paper into the transfer mechanism, with the paper substrate 100 facing upward, the ratio of sodium hydroxide to water is 1:10, and the immersion time is 20min-30min, ensuring that the paper substrate 100 and the glue layer 200 can be fully detached;

[0058] ③. Clean the paper substrate 100 and the glue layer 200 that have fallen off the surface of the laser paper to form a PET laser film with pattern information;

[0059] ④. The PET laser film is transferred to the first cleaning tank 13 filled with pure water for cleaning by the transfer mechanism to remove the residual paper substrate 100 and the glue layer 200. When cleaning in the first cleaning tank 13, the surface of the PET laser film is checked by the dust-free lamp 57 to ensure that there is no residue on the surface of the PET laser film;

[0060] S3, processing coating 300:

[0061] ①, the PET laser film is transferred to the second treatment tank 14 filled with dilute sulfuric acid solution by the transfer mechanism for immersion, the coating 300 is a zinc sulfide layer, the ratio of dilute sulfuric acid to water is 1:50, and the immersion time is 5min-10min;

[0062] ②, clean the coating 300 of PET laser film;

[0063] ③, the PET laser film is transferred to the second cleaning tank 15 filled with pure water through the transfer mechanism for cleaning to remove the residual coating 300;

[0064] S4. Complete the reprint.

[0065] After the laser paper passes through a sodium hydroxide solution and a dilute sulfuric acid solution, the paper substrate 100, the glue layer 200 and the coating layer 300 in the laser paper can be removed, and the information layer can be transferred to the PET film 600 through the UV glue layer 500 to achieve the replication of the information layer pattern, which effectively solves the problem that the laser paper cannot be reproduced when there is only a laser paper sample but no laser film pattern information data.

[0066] After step S4, the process also includes making a nickel plate:

[0067] After step S4, the process also includes making a nickel plate:

[0068] ①, taking out the PET laser film from the reprinting equipment, placing it in an electroforming tank, which is a prior art electroforming tank, and using a sensitizing solution to sensitize the information layer 400, so as to form a sensitized layer 700 on the surface of the information layer 400;

[0069] ②, pouring silver liquid and reducing agent into the electroforming tank, so as to form a silver layer 800 having the same pattern information as the information layer 400 on the surface of the sensitized layer 700;

[0070] ③. Take out the component of step ② from the electroforming tank, and apply a circle of conductive glue 900 on the periphery of the component of step ②, and then stick the conductive plate 1000 on the side of the PET film 600 away from the silver layer 800, and connect the conductive plate 1000 and the PET film 600 through the conductive glue 900;

[0071] ④, putting the component of step ③ back into the electroforming tank, adding nickel beads into the electroforming tank, and electrolyzing the component of step ③ in the electroforming tank so that the nickel beads are decomposed and adsorbed onto the surface of the silver layer 800 to form a nickel layer 2000;

[0072] ⑤. Take out the component of step ④ from the electroforming tank and peel it off at the sensitized layer 700 to form a nickel plate with pattern information.

[0073] The sensitizing solution is a solution of hydrochloric acid, stannous chloride and pure water, the silver solution is a solution of silver nitrate, sodium hydroxide and pure water, and the reducing agent is a solution of glucose and water.

[0074] In step ②, pour the silver solution and the reducing agent into the silver plating tank in a ratio of 1:1 and shake evenly until a silver layer of 800 is precipitated.

[0075] After the nickel plate is produced, the batch production of the pattern information after the copy can be realized.

[0076] like Figures 3 to 8 As shown, a paper flanging device is applied to a paper flanging process, comprising a main support 1 and a transfer mechanism, an operating table 11, a first treatment tank 12, a first cleaning tank 13, a second treatment tank 14 and a second cleaning tank 15 are arranged in sequence on the upper part of the main support 1 along the moving direction of the transfer mechanism, the first treatment tank 12 is provided with a sodium hydroxide solution, the first cleaning tank 13 and the second cleaning tank 15 are both provided with pure water, and the second treatment tank 14 is provided with a dilute sulfuric acid solution.

[0077] A conveying device 2 is provided above the main bracket 1, and the conveying device 2 can drive the transfer mechanism to move. Specifically, the conveying device 2 is a screw transmission device, and the conveying device 2 includes a first screw rod 21, a first guide rod 22 and a first motor 23. The first support frame 111 and the second support frame 19 are respectively provided on both sides of the length direction of the main bracket 1. The first screw rod 21 and the first guide rod 22 are respectively connected to the first support frame 111 and the second support frame 19 at both ends. The first motor 23 is connected to the first screw rod 21 and can drive the first screw rod 21 to rotate. The transfer mechanism includes a placement frame 3, a movable plate 5, a driving mechanism 7 and a lifting mechanism 8 arranged from bottom to top. The lifting mechanism 8 is connected to the conveying device 2, and the lifting mechanism 8 includes a support plate 81. A second slide 83 is provided on the upper part of the support plate 81. The second slide 83 is respectively sleeved on the outside of the first screw rod 21 and the first guide rod 22 and is threadedly connected to the first screw rod 21. The first motor 23 drives the first screw rod 21 to rotate, which can drive the transfer mechanism to move along the first guide rod 22. The moving method is simple and reliable.

[0078] like Figure 7 and Figure 8 As shown, the laser paper can be fixed on the upper part of the placement rack 3. The placement rack 3 is a frame structure. The upper part of the placement rack 3 is provided with pressure strips 4 near both sides. When the laser paper is placed on the placement rack 3, the two sides of the laser paper are pressed by the pressure strips 4, so that the laser paper can be fixed. The lower part of the pressure strip 4 is provided with buckles 41 near its two ends, and the side of the placement rack 3 is provided with notches 32 corresponding to the buckles 41. The buckles 41 are inserted into the notches 32 and buckled and fixed at the lower part of the placement rack 3. The pressure strip 4 is fixed to the placement rack 3 by the buckles 41, which is not only reliable in installation, but also convenient for disassembly of the pressure strip 4, thereby facilitating the disassembly and assembly of the laser paper. The pressure strip 4 only fixes the two sides of the laser paper, which can prevent the laser paper from processing the paper substrate 100, and the residual paper substrate 100 will not be blocked by the pressure strip 4.

[0079] like Figure 6 and Figure 7As shown, the movable plate 5 is connected to the placement rack 3 through a connecting group 6, and the driving mechanism 7 can drive the movable plate 5 to move back and forth, and through the connecting group 6, can drive the placement rack 3 to move back and forth. Specifically, the placement rack 3 moves back and forth by means of a screw rod transmission, and a third support frame 51 is provided on the upper part of the movable plate 5, and a first slide 52 is provided on the upper part of the third support frame 51. The driving mechanism 7 includes a lifting plate 71, and a second screw rod 72, a second guide rod 74 and a third motor 73 are connected to the lower part of the lifting plate 71. The third motor 73 can drive the second screw rod 72 to rotate, and the first slide 52 is respectively sleeved on the outside of the second screw rod 72 and the second guide rod 74. The first slide 52 is threadedly connected to the second screw rod 72, and the reciprocating motion of the placement rack 3 is realized by the forward and reverse rotation of the third motor 73, and the direction of the second screw rod 72 is consistent with the direction of the pressure strip 4.

[0080] When the placement rack 3 is immersed in the first treatment tank 12 or the second treatment tank 14, the reciprocating movement of the placement rack 3 can shake off the residual substances after separation, thereby improving the separation effect and high efficiency. When the placement rack 3 is located in the first cleaning tank 13 or the second cleaning tank 15, the cleaning effect can also be improved, and the movement through the screw drive can achieve uniform speed movement, so that the impact of the solution on the laser paper is relatively small, thereby avoiding deformation of the laser paper.

[0081] The lifting mechanism 8 can drive the placement rack 3 to move up and down. Specifically, an electric push rod 82 is installed on the upper part of the support plate 81. The lifting end of the electric push rod 82 is connected to the upper part of the lifting plate 71. A plurality of third guide rods 75 are provided on the upper part of the lifting plate 71. The third guide rods 75 penetrate the support plate 81. The electric push rod 82 can drive the placement rack 3 to move up and down. Through the electric push rod 82, the placement rack 3 can be driven to move up and down, so that the placement rack 3 can be immersed in the solution or separated from the solution at a uniform speed. Through the third guide rod 75, the reliability of the up and down lifting of the placement rack 3 can be improved.

[0082] like Figures 3 to 5As shown, the sides of the operating table 11, the first treatment pool 12, the first cleaning pool 13, the second treatment pool 14 and the second cleaning pool 15 are all provided with bosses 18, and the upper part of the bosses 18 is provided with a sensor group 9, and the sensor group 9 includes a plurality of sensors, and the transfer mechanism includes a convex block 56, and the convex block 56 is arranged on the side of the third support frame 51, and the convex block 56 can face the corresponding sensor, wherein the sensor group 9 includes a first in-place sensor 91, a second in-place sensor 92, a third in-place sensor 93 and a fourth in-place sensor 94, and the first in-place sensor 91, the second in-place sensor 92 and the third in-place sensor 93 are respectively arranged on the upper part of the bosses 18 of the first treatment pool 12, the first cleaning pool 13, the second treatment pool 14 and the second cleaning pool 15, and the second in-place sensor 92 and the third in-place sensor 93 are located at the first in-place sensor 91, move the transfer mechanism, when the protrusion 56 is located above the first in-place sensor 91, the electric push rod 82 drives the placement rack 3 to descend, so that the placement rack 3 can be immersed in the corresponding solution; the third motor 73 works, driving the placement rack 3 to move back and forth, when the protrusion 56 is facing the second in-place sensor 92, the placement rack 3 moves back until the protrusion 56 is facing the third in-place sensor 93, when the protrusion 56 is facing the third in-place sensor 93, the placement rack 3 moves back again until the protrusion 56 is facing the second in-place sensor 92 again, when the transfer mechanism moves to the top of the operating table 11 and the fourth in-place sensor 94 is facing the protrusion 56, the placement rack 3 can descend, and the operator can install the laser paper with PET film on the placement rack 3. By setting the sensor group 9, the movement and positioning of the transfer mechanism can be realized, which is convenient for the production of paper copying.

[0083] A dust-free lamp 57 is also provided at the lower part of the third support frame 51 , through which the surface of the laser paper located at the upper part of the placement frame 3 can be observed.

[0084] like Figure 6 and Figure 7 As shown, a first hinge seat 31 is provided at each of the four corners of the placement rack 3, the connection group 6 includes two connecting rods 61, a limiting rod 62 and a lifting rod 63, the lower ends of the two connecting rods 61, a limiting rod 62 and a lifting rod 63 are respectively hinged to the first hinge seats 31 corresponding to the four corners of the placement rack 3, a second hinge seat 53 corresponding to the connecting rod 61 is provided at the lower part of the movable plate 5, the second hinge seat 53 is hinged to the upper end of the corresponding connecting rod 61, the limiting rod 62 and the lifting rod 63 both pass through the movable plate 5, the limiting rod 62 and the lifting rod 63 are located on the same side, the two connecting rods 61 are located on the same side, and the side of the placement rack 3 connected to the limiting rod 62 and the lifting rod 63 can swing with the hinge point of the connecting rod 61 and the first hinge seat 31 as the center of the circle.

[0085] Since the laser paper has a large area and a small thickness, during the retreading process, if the placement rack 3 is horizontally immersed in the solution or taken out of the solution horizontally, the resistance of the solution to the laser paper will be very large, which may easily cause damage to the laser paper. Therefore, by setting the connection group 6, when the laser paper needs to be immersed or taken out of the solution, the limit rod 62 and the lifting rod 63 can move downward, so that one side of the placement rack 3 is tilted downward. By immersing the placement rack 3 in the solution or taking it out of the solution in an inclined manner, not only can the force of the solution on the laser paper be greatly reduced, but also the damage to the laser paper during retreading can be effectively reduced, thereby improving the success rate of retreading.

[0086] Among them, a spur rack 64 is provided on the inner side of the lifting rod 63, a second motor 54 is provided on the upper part of the movable plate 5, and a gear 55 is provided at the driving shaft of the second motor 54. The gear 55 is meshed with the spur rack 64. The gear 55 is driven to rotate by the second motor 54, thereby driving the lifting rod 63 to move up and down, thereby realizing the inclination or leveling of the placement rack 3, and can realize the uniform speed inclination of the placement rack 3. The structure is simple and the stability is good.

[0087] like Figure 3 and Figure 4 As shown, the inner walls of the first treatment pool 12, the first cleaning pool 13, the second treatment pool 14 and the second cleaning pool 15 are all provided with anti-splash grooves 16, and the upper part of the anti-splash grooves 16 is provided with rotating cylinders 17, and the working ends of the rotating cylinders 17 are all immersed in the solution. During the copying process, the rotating cylinders 17 work and can locally stir the corresponding solutions, thereby destroying the surface tension of the solutions and reducing the impact force when the placement rack 3 enters the water, which can not only reduce the probability of damage to the laser paper to a certain extent, but also improve the removal efficiency of the residues on the surface of the laser paper.

[0088] 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 paper reprinting process for reprinting laser paper, wherein the laser paper comprises a paper substrate (100), a glue layer (200); a coating layer (300) and an information layer (400); characterized in that: The following steps are involved: S1. Copy pattern information: ①, placing the information layer (400) upward on the operating table (11) of the paper reprinting equipment; ②, uniformly coating a layer of UV adhesive layer (500) on the surface of the information layer (400) by UV platemaking equipment; ③. Covering the surface of the UV adhesive layer (500) with a layer of transparent PET film (600); ④, using a UV lamp to expose the UV adhesive layer (500) and cure it; S2. Processing the paper substrate (100) and the glue layer (200): ①, installing the laser paper processed in step S1 into the transfer mechanism of the copying equipment; ②, transferring the laser paper to a first treatment tank (12) filled with sodium hydroxide solution through a transfer mechanism for immersion; ③, cleaning the paper substrate (100) and the glue layer (200) that have fallen off the surface of the laser paper, and forming a PET laser film with pattern information; ④, transferring the PET laser film to a first cleaning pool (13) filled with pure water through a transfer mechanism for cleaning, and removing the residual paper substrate (100) and the glue layer (200); S3, processing coating (300): ①, transferring the PET laser film to a second treatment tank (14) filled with a dilute sulfuric acid solution through a transfer mechanism for immersion; ②, cleaning the coating of the PET laser film (300); ③, transferring the PET laser film to a second cleaning tank (15) filled with pure water for cleaning by means of a transfer mechanism to remove the residual coating (300); S4, completing the reprinting to form a PET film (600) with an information layer (400); S5. Nickel plate production: ①, taking out the PET laser film from the reprinting equipment, placing it in an electroforming tank, and sensitizing the information layer (400) with a sensitizing solution to form a sensitized layer (700) on the surface of the information layer (400); ②, pouring silver liquid and reducing agent into the electroforming tank, so as to form a silver layer (800) having pattern information consistent with the information layer (400) on the surface of the sensitized layer (700); ③. Take out the component of step ② from the electroforming tank, and apply a circle of conductive glue (900) on the periphery of the component of step ②, and then stick the conductive plate (1000) on the side of the PET film (600) away from the silver layer (800), and connect the conductive plate (1000) and the PET film (600) through the conductive glue (900); ④, placing the component of step ③ back into the electroforming tank, adding nickel beads into the electroforming tank, and electrolyzing the component of step ③ in the electroforming tank so that the nickel beads are decomposed and adsorbed onto the surface of the silver layer (800) to form a nickel layer (2000); ⑤. Take out the component of step ④ from the electroforming tank and peel off the sensitized layer (700) to form a nickel plate with pattern information.

2. A paper reprinting process according to claim 1, characterized in that: In step S1, the thickness of the UV adhesive layer (500) is 0.05 mm-0.1 mm, and the thickness of the PET film (600) is 120 μm-200 μm.

3. A paper reprinting process according to claim 1, characterized in that: In step S2, the laser paper is placed in the transfer mechanism with the paper substrate (100) facing upwards, the ratio of sodium hydroxide to water is 1:10, and the surface of the PET laser film is checked by a dust-free lamp (57) during cleaning in the first cleaning pool (13), and the immersion time is 20 minutes to 30 minutes.

4. A paper reprinting process according to claim 1, characterized in that: In step S3, the coating (300) is a zinc sulfide layer, the ratio of dilute sulfuric acid to water is 1:50, and the immersion time is 5 min-10 min.

5. A paper reprinting process according to claim 1, characterized in that: The sensitizing solution is a solution of hydrochloric acid, stannous chloride and pure water, the silver solution is a solution of silver nitrate, sodium hydroxide and pure water, and the reducing agent is a solution of glucose and water; In step ②, silver solution and reducing agent are poured into the silver plating tank in a ratio of 1:1 and shaken evenly until a silver layer (800) is precipitated.

6. A paper duplication device, applied to a paper duplication process as claimed in any one of claims 1 to 5, characterized in that: The invention comprises a main support (1) and a transfer mechanism, wherein a conveying device (2) is arranged above the main support (1), and the conveying device (2) can drive the transfer mechanism to move, and an operating table (11), a first treatment pool (12), a first cleaning pool (13), a second treatment pool (14) and a second cleaning pool (15) are arranged in sequence on the upper part of the main support (1) along the moving direction of the transfer mechanism; The transfer mechanism comprises a placement rack (3), a movable plate (5), a driving mechanism (7) and a lifting mechanism (8) arranged from bottom to top, the laser paper can be fixed on the upper part of the placement rack (3), the movable plate (5) is connected to the placement rack (3) through a connecting group (6), the driving mechanism (7) can drive the placement rack (3) to move back and forth, the lifting mechanism (8) can drive the placement rack (3) to move up and down, and the lifting mechanism (8) is connected to the conveying device (2).

7. A paper duplication device according to claim 6, characterized in that: The placement rack (3) moves back and forth by means of screw drive, a third support frame (51) is provided on the upper part of the movable plate (5), a first slide seat (52) is provided on the upper part of the third support frame (51), the driving mechanism (7) comprises a lifting plate (71), a second screw rod (72), a second guide rod (74) and a third motor (73) are connected to the lower part of the lifting plate (71), the third motor (73) can drive the second screw rod (72) to rotate, the first slide seat (52) is respectively sleeved on the outer side of the second screw rod (72) and the second guide rod (74), and the first slide seat (52) is connected to the second screw rod (72) by threads.

8. A paper duplication device according to claim 7, characterized in that: The lifting mechanism (8) comprises a support plate (81), an electric push rod (82) is installed on the upper part of the support plate (81), the lifting end of the electric push rod (82) is connected to the upper part of the lifting plate (71), and a plurality of third guide rods (75) are provided on the upper part of the lifting plate (71), and the third guide rods (75) penetrate the support plate (81), and the electric push rod (82) can drive the placement rack (3) to rise and fall.

9. The paper duplication device according to claim 6, characterized in that: The conveying device (2) is a screw conveying device (2); the operating table (11), the first treatment pool (12), the first cleaning pool (13), the second treatment pool (14) and the second cleaning pool (15) are all provided with bosses (18) on their sides; a sensor group (9) is provided on the top of the boss (18); the sensor group (9) includes a plurality of sensors; the transfer mechanism includes a convex block (56); and the convex block (56) is capable of facing the corresponding sensor.

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