A new printing process with oil instead of plastic

Abstract

The application relates to the technical field of printing processes, in particular to a novel printing process replacing plastic with oil, which comprises the following steps: S1, pre-coating: after the oil ink in an oil storage tank is uniformly stirred, a proper amount of the oil ink is coated on a flexible plate, so that the flexible plate has uniform thickness and viscosity; S2, printing: the flexible plate is placed on a printing machine, and the oil ink is transferred to the surface of a printed part through the action of pressure and temperature; S3, printing sequence: a first layer of white card base paper, a second layer of flexible water-based silver, a third layer of printed color layer and a fourth layer of printed light-dull oil; and S4, drying: hot air or UV drying is adopted, so that the oil ink is rapidly dried and fixed on the printed part. The application can be more environmentally friendly compared with traditional printing and film coating processes, the use of oil ink and the emission of carbon can be reduced, the application can better adapt to market and environmental changes, and the environmental protection problem in the film coating process can be effectively solved.

Description

Technical Field

[0001] This application relates to the field of printing technology, and in particular to a novel printing process that uses oil instead of plastic. Background Technology

[0002] Traditional printing followed by lamination combines physical and chemical processes, using adhesives to bond plastic film to the surface of printed materials through heating and pressure, forming a "paper-plastic integrated" composite structure. This significantly enhances the functionality and market competitiveness of printed materials.

[0003] In related technologies, traditional printing and lamination processes mainly involve aluminum foil-coated cardboard boxes. However, these packages have a high aluminum foil content and high carbon emissions, which can lead to environmentally unfriendly printing methods. Therefore, there is an urgent need for a method that can reduce carbon emissions from this type of packaging, while also making the printing process more environmentally friendly and adaptable to existing production lines for lamination technology innovation. Summary of the Invention

[0004] This application provides a novel printing process that replaces plastic with oil, aiming to be more environmentally friendly than traditional printing and lamination processes, reducing ink usage and carbon emissions, thereby better adapting to market and environmental changes, and effectively solving environmental problems in the lamination process.

[0005] This application provides a novel printing process that replaces plastic with oil, employing the following technical solution:

[0006] A novel printing process that uses oil instead of plastic includes the following steps:

[0007] S1. Pre-coating: After the ink in the oil tank is stirred evenly, an appropriate amount of ink is coated onto the flexographic plate to give it a uniform thickness and viscosity; S2. Printing: The flexographic plate is placed on the printing press, and the ink is transferred to the surface of the printed part through pressure and temperature; S3. Printing sequence: First layer white cardboard base paper, second layer flexible water-based silver, third layer printed color layer, fourth layer printed gloss and matte varnish; S4. Drying: Hot air or UV drying is used to make the ink dry quickly and fix it on the printed part.

[0008] By adopting the above technical solution, this printing method can achieve fine detail printing, improving printing effect and quality. Furthermore, the inks and materials used in flexographic printing are environmentally friendly and cause no pollution. Compared to traditional PET and aluminum foil / silver cardboard raw materials, this process uses 100% paper raw materials, thus offering better environmental performance. Paper materials also have excellent printability. Using flexographic printing reduces minimum order quantities and order quantities, decreases ink usage and carbon emissions, making the printing method more environmentally friendly and suitable for existing production lines. This printing process, without altering existing packaging production lines, achieves a paper-based replacement for aluminum foil / silver cardboard, significantly reducing carbon emissions. Simultaneously, it lowers the market usage rate of aluminum foil / silver cardboard, upgrades aluminum foil / silver cardboard printing, and saves packaging costs, meeting modern consumers' pursuit of environmentally friendly and cost-effective packaging paper.

[0009] Preferably, a partition is fixed horizontally inside the oil storage tank, dividing the interior of the oil storage tank into an upper and lower distributed stirring chamber and an assembly chamber. The stirring chamber is used to fill the corresponding ink, and a stirring blade is added to the stirring chamber for stirring the ink. The stirring blade is rotated and raised in the stirring chamber, and the stirring blade intermittently stirs the ink in the oil storage tank. A cooling component is added to the oil storage tank, and the cooling component intermittently cools and lowers the temperature of the ink during the stirring process.

[0010] A drive motor is fixedly mounted on the top of the oil storage tank, and a stirring shaft is installed vertically at the bottom of the drive motor. The stirring shaft extends into the stirring chamber and is connected to the stirring blade.

[0011] By adopting the above technical solution, the stirring blade can move vertically up and down while rotating within the stirring chamber. This allows the stirring blade to agitate ink at different heights within the stirring chamber, ensuring that the ink components are fully integrated within the storage tank. This effectively improves the ink's fusion effect and thus guarantees the quality of subsequent printed products. This design effectively prevents prolonged stirring of the ink by the stirring blade, which could lead to a sudden drop in ink viscosity due to thixotropic degradation. It also effectively prevents overheating caused by prolonged stirring, thus avoiding abnormal viscosity. Furthermore, the intermittent cooling of the ink by the cooling component effectively prevents temperature rise and decomposition during ink stirring. The cooling component effectively maintains temperature balance during ink stirring, further preventing overheating and abnormal ink viscosity caused by stirring.

[0012] Preferably, two cooling boxes are symmetrically installed on the left and right sides of the top of the oil storage tank, and the two cooling boxes alternately fill the stirring chamber with cold air.

[0013] By adopting the above technical solution, the ink is intermittently cooled and cooled using two cooling boxes, which can effectively prevent the ink from overheating and decomposing during the stirring process. The two cooling boxes can effectively maintain the temperature balance during the ink stirring process, thus effectively preventing overheating caused by stirring from leading to abnormal ink viscosity.

[0014] Preferably, a rotating plate is integrally fitted on the top of the stirring shaft in the horizontal direction. The top of the rotating plate is in contact with the inner wall of the oil storage tank. A first vent hole is opened through one end of the rotating plate, and a second vent hole is opened through the bottom of both cooling boxes. The first vent hole and the second vent hole are used to fill the cold air in the cooling box into the stirring chamber.

[0015] By adopting the above technical solution, corresponding through holes are provided on the left and right sides of the top of the oil tank, corresponding to the positions of the second vent holes in the cooling box. Utilizing these through holes on the top of the oil tank, when the rotating plate rotates to the corresponding position, the first vent hole and the corresponding second vent hole remain connected. During this process, the cold air in the cooling box fills the stirring chamber through the first and second vent holes to cool the ink, effectively preventing the ink from overheating and causing abnormal viscosity due to excessive stirring. When the first vent hole on the rotating plate and the second vent hole on the cooling box are not connected, the through holes on the oil tank are blocked using the remaining positions on the rotating plate (except for the first vent hole), thus preventing the leakage of cold air from the cooling box. In this state, cold air cannot fill the stirring chamber to cool the ink, thereby achieving intermittent cooling of the ink in the stirring chamber and effectively preventing ink condensation caused by excessive cooling.

[0016] Preferably, the bottom of the drive motor is connected to a first gear via a vertically arranged rotating shaft. The first gear is horizontally arranged. The top of the stirring shaft is integrally connected to a second gear in the horizontal direction. The second gear is horizontally arranged. The first gear and the second gear are meshed together.

[0017] By adopting the above technical solution, during the process of the drive motor driving the first gear to rotate, the first gear synchronously drives the second gear and the stirring shaft to rotate.

[0018] Preferably, one half of the first gear is a toothed portion and the other half is a smooth portion.

[0019] By adopting the above technical solution, when the tooth part of the first gear rotates to the position of the second gear and meshes with the second gear, the first gear drives the second gear to rotate synchronously; when the smooth part of the first gear rotates to the position of the second gear, the first gear and the second gear are in a disengaged meshing state. In this state, the first gear cannot drive the second gear to rotate, and at this time, the stirring shaft cannot rotate, and the stirring blade stops stirring the ink. The purpose of doing this is to achieve intermittent stirring of the ink in the storage tank by the stirring blade, which can effectively prevent the stirring blade from stirring the ink for too long, resulting in a sudden drop in the viscosity of the ink due to the destruction of thixotropy, and at the same time can effectively prevent abnormal viscosity caused by overheating due to over-stirring.

[0020] Preferably, a second lifting plate is provided in the stirring cavity. The second lifting plate is located between the partition plate and the stirring blade. The second lifting plate is slidably installed in the stirring cavity in the vertical direction. An oscillation component is provided at the bottom of the second lifting plate. The oscillation component agitates the ink during the lifting process of the second lifting plate.

[0021] By adopting the above technical solution, using the oscillation component to stir the ink is beneficial to ensuring that the components in the ink can be fully fused in the storage tank, which can effectively improve the fusion effect of the ink in the storage tank, and thus can effectively ensure the quality of subsequent printed products.

[0022] Preferably, the oscillation component includes a driving member, two first stirring plates and two second stirring plates. The driving member is integrally formed at the bottom of the second lifting plate. The two first stirring plates and the two second stirring plates are both installed on the top of the partition plate in the horizontal direction. The two first stirring plates and the two second stirring plates are integrally distributed in a "square" shape structure on the top of the partition plate. The two first stirring plates are symmetrically arranged, and the two second stirring plates are symmetrically arranged. The driving member is used to drive the two first stirring plates and the two second stirring plates to slide in the direction of approaching or separating from each other.

[0023] By adopting the above technical solution, during the sliding process of the two first stirring plates and the two second stirring plates, the ink can be agitated in two directions, which can significantly improve the stirring effect on the ink and make the mixing effect of the ink better.

[0024] Preferably, the driving member is integrally in a "cross" shape structure, and the ends of the driving member are all wedge-shaped. The ends of the two first stirring plates and the two second stirring plates close to the driving member are all wedge-shaped, and the ends of the driving member are in wedge-shaped fit with the ends of the two first stirring plates and the two second stirring plates.

[0025] By adopting the above technical solution, as the driving component descends, during the wedge-shaped engagement between the end of the driving component and the ends of the first and second stirring plates, the driving component gradually drives the two first and two second stirring plates to slide towards each other or away from each other, thereby completing the stirring of the ink.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. This printing method enables the printing of fine details, improving printing effects and quality. Furthermore, the inks and materials used in flexographic printing are environmentally friendly and cause no pollution. Compared to traditional PET and aluminum foil / silver cardboard raw materials, this process uses 100% paper raw materials, thus offering better environmental performance. Paper materials also have excellent printability. Using flexographic printing reduces minimum order quantities and order quantities, decreases ink usage and carbon emissions, making the printing method more environmentally friendly and suitable for existing production lines. This printing process achieves a paper-based alternative to aluminum foil / silver cardboard without altering existing packaging production lines, significantly reducing carbon emissions. Simultaneously, it lowers the market usage rate of aluminum foil / silver cardboard, upgrades aluminum foil / silver cardboard printing, and saves packaging costs, meeting modern consumers' pursuit of environmentally friendly and cost-effective packaging paper.

[0028] 2. While rotating within the mixing chamber, the stirring blades can also move vertically up and down, allowing them to agitate ink at different heights within the chamber. This ensures the ink components are fully integrated within the storage tank, effectively improving ink blending and thus guaranteeing the quality of subsequent printed materials. This design prevents prolonged stirring, which could lead to thixotropic degradation and a sudden drop in ink viscosity, and also prevents overheating and abnormal viscosity caused by prolonged stirring. Furthermore, intermittent cooling of the ink using a cooling system effectively prevents temperature rise and decomposition during stirring. The cooling system maintains temperature balance during ink stirring, further preventing overheating and abnormal ink viscosity.

[0029] 3. During the sliding process, the two first stirring plates and the two second stirring plates can stir the ink in two directions, which can significantly improve the stirring effect of the ink and make the ink mixing effect better. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 2This is a schematic diagram illustrating the structural relationship between the partition, stirring chamber, assembly chamber, stirring blade, stirring shaft, first fixed seat, first lifting plate, positioning seat, second fixed seat, threaded cylinder, threaded rod, guide rod, and second lifting plate in specific embodiments of this application.

[0032] Figure 3 This is a structural schematic diagram illustrating the positional relationship of the first vent, the second vent, the driving component, the first stirring plate, and the second stirring plate in a specific embodiment of this application.

[0033] Figure 4 This is a schematic diagram illustrating the specific structure of the driving component, the first stirring plate, the second stirring plate, and the first and second gears in the embodiments of this application.

[0034] Reference numerals: 1. Oil storage tank; 2. Baffle plate; 3. Stirring chamber; 4. Assembly chamber; 5. Stirring blade; 6. Drive motor; 7. Stirring shaft; 8. First fixed seat; 9. First lifting plate; 10. Positioning seat; 11. Second fixed seat; 12. Threaded cylinder; 13. Threaded rod; 14. Guide rod; 15. Cooling box; 16. Rotating plate; 17. First vent hole; 18. Second vent hole; 19. First gear; 20. Second gear; 21. Second lifting plate; 22. Drive component; 23. First stirring plate; 24. Second stirring plate. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail below.

[0036] Example:

[0037] This application discloses a novel printing process that uses oil instead of plastic, referring to... Figure 1 This includes the following steps:

[0038] S1. Pre-coating: After the ink in oil tank 1 is stirred evenly, an appropriate amount of ink is coated onto the flexographic plate to give it a uniform thickness and viscosity; S2. Printing: The flexographic plate is placed on the printing press, and the ink is transferred to the surface of the printed part through pressure and temperature; S3. Printing sequence: First layer white cardboard base paper, second layer flexible water-based silver, third layer printed color layer, fourth layer printed gloss and matte varnish; S4. Drying: Hot air or UV drying is used to make the ink dry quickly and fix it on the printed part.

[0039] This printing method enables the printing of fine details, improving print quality and overall effect. Furthermore, the inks and materials used in flexographic printing are environmentally friendly and cause no pollution. Compared to traditional PET and aluminum foil / silver cardboard raw materials, this process uses 100% paper, resulting in superior environmental performance. Paper materials also offer excellent printability. Flexographic printing lowers minimum order quantities and order requirements, reducing ink usage and carbon emissions, making the printing method more environmentally friendly and compatible with existing production lines. This printing process achieves a paper-based alternative to aluminum foil / silver cardboard without altering existing packaging production lines, significantly reducing carbon emissions. It also lowers the market usage of aluminum foil / silver cardboard, upgrading aluminum foil / silver cardboard printing and saving packaging costs, aligning with modern consumers' pursuit of cost-effective and environmentally friendly packaging paper.

[0040] Specifically, refer to Figure 1 and Figure 2 The oil storage tank 1 is hollow inside. A horizontally welded baffle 2, shaped like a disc, divides the interior of the oil storage tank 1 into an upper and lower distributed stirring chamber 3 and an assembly chamber 4. The stirring chamber 3 is filled with the corresponding ink and is equipped with stirring blades 5 for stirring the ink. The stirring blades 5 stir the ink, ensuring thorough mixing of its components. While rotating within the stirring chamber 3, the stirring blades 5 can also move vertically up and down, allowing them to stir the ink at different heights within the stirring chamber 3. This ensures thorough fusion of the ink components within the oil storage tank 1, effectively improving the ink fusion effect and thus guaranteeing the quality of subsequent printed products.

[0041] The stirring blade 5 stirs the ink in the oil storage tank 1 intermittently. This is to effectively prevent the stirring blade 5 from stirring the ink for too long, which would cause a sudden drop in the viscosity of the ink due to thixotropic damage. At the same time, it can also effectively prevent overheating caused by prolonged stirring, which would lead to abnormal viscosity.

[0042] Meanwhile, a cooling component is installed inside the oil storage tank 1. During the stirring process of the ink by the stirring blade 5, the cooling component intermittently cools and lowers the temperature of the ink, thereby effectively preventing the ink temperature from rising and decomposing during the stirring process. The cooling component can effectively maintain the temperature balance during the ink stirring process, thereby effectively preventing overheating caused by stirring from causing abnormal ink viscosity.

[0043] Specifically, refer to Figure 1 and Figure 2The top of the oil storage tank 1 is fastened with a drive motor 6 by fastening bolts. The drive end of the drive motor 6 faces downward. A stirring shaft 7 is installed vertically at the bottom of the drive motor 6. The stirring shaft 7 rotates under the drive of the drive motor 6. The stirring shaft 7 extends into the stirring chamber 3 and is connected to the stirring blade 5.

[0044] Reference Figure 1 and Figure 2 The bottom of the assembly cavity 4 is welded with a first fixed seat 8 along the horizontal direction. A first lifting plate 9 is provided above the first fixed seat 8 along the horizontal direction. A disc-shaped positioning seat 10 is integrally formed on the top of the first lifting plate 9. A second fixed seat 11 is horizontally arranged above the first lifting plate 9. A through hole is provided on the second fixed seat 11, and a threaded cylinder 12 is integrally formed in the vertical direction inside the through hole.

[0045] Reference Figure 1 and Figure 2 The bottom of the stirring shaft 7 is integrally formed with a threaded rod 13 along the vertical direction. The threaded rod 13 passes vertically downward through the threaded cylinder 12 and extends to the positioning seat 10. The threaded rod 13 is connected to the first lifting plate 9 through the positioning seat 10. The threaded rod 13 is threadedly engaged with the threaded cylinder 12.

[0046] In practical use, the drive motor 6 drives the stirring shaft 7 to rotate, and at the same time, the stirring blade 5 rotates through the stirring shaft 7. The rotation of the stirring blade 5 drives the threaded rod 13 to rotate inside the threaded cylinder 12. During the rotation of the threaded rod 13 inside the threaded cylinder 12, the threaded rod 13 can move up and down in the vertical direction. During the movement of the threaded rod 13, the stirring blade 5 and the first lifting plate 9 are simultaneously moved up and down, so that the stirring blade 5 can stir the ink at different heights in the oil storage tank 1, which is conducive to enhancing the effect of ink fusion in the oil storage tank 1.

[0047] The stirring shaft 7 is a telescopic shaft, which means that the stirring shaft 7 will extend and retract along with the stirring blade 5 during the lifting and lowering process, thereby effectively preventing the stirring shaft 7 from obstructing the lifting and lowering of the stirring blade 5.

[0048] Reference Figure 1 and Figure 2 Guide rods 14 are welded vertically between the left and right ends of the first fixed seat 8 and the second fixed seat 11. The left and right ends of the first lifting plate 9 are respectively sleeved on the two guide rods 14. While the first lifting plate 9 rises and falls vertically, the two guide rods 14 guide the first lifting plate 9, thereby helping to ensure the stability of the first lifting plate 9 during the rising and falling process.

[0049] Specifically, refer to Figure 1 and Figure 2Two cooling boxes 15 are symmetrically installed on the left and right sides of the top of the oil storage tank 1. As the stirring blade 5 stirs the ink in the stirring chamber 3, the two cooling boxes 15 alternately fill the stirring chamber 3 with cold air. The two cooling boxes 15 achieve intermittent cooling and temperature reduction of the ink, thereby effectively preventing the ink temperature from rising and decomposing during the stirring process. The two cooling boxes 15 can effectively maintain the temperature balance during the ink stirring process, thereby effectively preventing overheating caused by stirring and abnormal ink viscosity.

[0050] Specifically, refer to Figure 2 and Figure 3 A rotating plate 16 is integrally fitted horizontally onto the top of the stirring shaft 7. The rotating plate 16 is disc-shaped, and its top is in contact with the inner wall of the oil storage tank 1. A first vent hole 17 is provided through one end of the rotating plate 16, and a second vent hole 18 is provided through the bottom of both cooling boxes 15. Corresponding to the positions of the second vent holes 18 on the left and right sides of the top of the oil storage tank 1, corresponding through holes are provided. Utilizing the through holes on the top of the oil storage tank 1, when the rotating plate 16 rotates to the corresponding position, the first vent hole 17 and the corresponding second vent hole 18 remain connected. During this process, the cold air in the cooling box 15 fills the stirring chamber 3 through the first vent hole 17 and the second vent hole 18 to cool the ink, thereby effectively preventing the ink from overheating and causing abnormal viscosity due to excessive stirring.

[0051] When the first vent hole 17 on the rotating plate 16 and the second vent hole 18 on the cooling box 15 are not connected, during this process, the through holes on the oil storage tank 1 are blocked by the remaining positions on the rotating plate 16 except for the first vent hole 17, thereby blocking the leakage of cold air in the cooling box 15. In this state, cold air cannot fill the stirring chamber 3 to cool down the ink, thereby achieving intermittent cooling down of the ink in the stirring chamber 3, effectively preventing the ink condensation problem caused by excessive cooling.

[0052] Specifically, refer to Figure 1 , Figure 2 as well as Figure 4 The bottom of the drive motor 6 is connected to a first gear 19 via a vertically arranged rotating shaft. The first gear 19 is horizontally positioned. The top of the stirring shaft 7 is integrally connected to a second gear 20 along a horizontal direction. The second gear 20 is horizontally positioned, and the first gear 19 and the second gear 20 are meshed together. During the process of the drive motor 6 driving the first gear 19 to rotate, the first gear 19 synchronously drives the second gear 20 and the stirring shaft 7 to rotate.

[0053] Furthermore, one half of the first gear 19 is a toothed portion, and the other half is a smooth portion. When the toothed portion of the first gear 19 rotates to the position of the second gear 20 and meshes with the second gear 20, the first gear 19 drives the second gear 20 to rotate synchronously. When the smooth portion of the first gear 19 rotates to the position of the second gear 20, the first gear 19 and the second gear 20 are in a disengaged state. In this state, the first gear 19 cannot drive the second gear 20 to rotate. At this time, the stirring shaft 7 cannot rotate, and the stirring blade 5 stops stirring the ink.

[0054] The purpose of this is to achieve intermittent stirring of the ink in the oil storage tank 1 by the stirring blade 5, thereby effectively preventing the ink from being stirred by the stirring blade 5 for too long, which would cause a sudden drop in ink viscosity due to thixotropic damage. At the same time, it can also effectively prevent overheating caused by prolonged stirring, which would lead to abnormal viscosity.

[0055] Furthermore, referring to Figure 2 and Figure 3 A second lifting plate 21 is installed inside the mixing chamber 3. The second lifting plate 21 is located between the partition plate 2 and the mixing blade 5. The second lifting plate 21 is connected to the first lifting plate 9 via a vertically arranged connecting rod. As the first lifting plate 9 moves vertically up and down within the assembly chamber 4, it simultaneously drives the second lifting plate 21 to move up and down. During the up and down movement of the second lifting plate 21 within the mixing chamber 3, it can agitate the ink at the bottom of the mixing chamber 3, thereby effectively increasing the mixing effect of the ink and improving the ink mixing effect.

[0056] Meanwhile, an oscillation component is added to the bottom of the second lifting plate 21. During the lifting process, the second lifting plate 21 uses the oscillation component to further agitate the ink, which helps to ensure that the components in the ink can be fully integrated in the oil storage tank 1, thereby effectively improving the ink integration effect in the oil storage tank 1 and thus effectively ensuring the quality of subsequent printed products.

[0057] Specifically, refer to Figure 2 , Figure 3 as well as Figure 4 The oscillation assembly includes a drive component 22, two first stirring plates 23, and two second stirring plates 24. The drive component 22 is integrally formed at the bottom of the second lifting plate 21. The two first stirring plates 23 and the two second stirring plates 24 are all horizontally mounted on the top of the partition plate 2. The two first stirring plates 23 and the two second stirring plates 24 are distributed in a "U" shape on the top of the partition plate 2, with the two first stirring plates 23 and the two second stirring plates 24 symmetrically arranged. The drive component 22 is used to drive the two first stirring plates 23 and the two second stirring plates 24 to slide in directions closer to or further away from each other. During the sliding process, the two first stirring plates 23 and the two second stirring plates 24 can agitate the ink in two directions, thereby significantly improving the ink stirring effect and making the ink mixing effect better.

[0058] Specifically, the driving component 22 has an overall "+" shaped structure, with each end of the driving component 22 being wedge-shaped. The ends of the two first stirring plates 23 and the two second stirring plates 24 near the driving component 22 are also wedge-shaped, forming a wedge-shaped fit between the end of the driving component 22 and the ends of the two first stirring plates 23 and the two second stirring plates 24. As the driving component 22 descends, during the wedge-shaped fit between the end of the driving component 22 and the ends of the first stirring plates 23 and the second stirring plates 24, the driving component 22 gradually drives the two first stirring plates 23 and the two second stirring plates 24 to slide towards or away from each other, thereby completing the stirring of the ink.

[0059] Each of the two first stirring plates 23 and the two second stirring plates 24, at the end furthest from the driving member 22, is connected in the horizontal direction to a return spring between itself and the inner wall of the oil storage tank 1. As the driving member 22 rises, the two first stirring plates 23 and the two second stirring plates 24 are reset to their initial positions by the return spring.

[0060] The implementation principle of a novel printing process using oil-based plastic substitutes in this application embodiment is as follows:

[0061] S1. Pre-coating: After the ink in oil tank 1 is stirred evenly, an appropriate amount of ink is coated onto the flexographic plate to give it a uniform thickness and viscosity; S2. Printing: The flexographic plate is placed on the printing press, and the ink is transferred to the surface of the printed part through pressure and temperature; S3. Printing sequence: First layer white cardboard base paper, second layer flexible water-based silver, third layer printed color layer, fourth layer printed gloss and matte varnish; S4. Drying: Hot air or UV drying is used to make the ink dry quickly and fix it on the printed part.

[0062] This printing method enables the printing of fine details, improving print quality and overall effect. Furthermore, the inks and materials used in flexographic printing are environmentally friendly and cause no pollution. Compared to traditional PET and aluminum foil / silver cardboard raw materials, this process uses 100% paper, resulting in superior environmental performance. Paper materials also offer excellent printability. Flexographic printing lowers minimum order quantities and order requirements, reducing ink usage and carbon emissions, making the printing method more environmentally friendly and compatible with existing production lines. This printing process achieves a paper-based alternative to aluminum foil / silver cardboard without altering existing packaging production lines, significantly reducing carbon emissions. It also lowers the market usage of aluminum foil / silver cardboard, upgrading aluminum foil / silver cardboard printing and saving packaging costs, aligning with modern consumers' pursuit of cost-effective and environmentally friendly packaging paper.

[0063] The bottom of the second lifting plate 21 is equipped with an oscillation component. During the lifting process, the second lifting plate 21 uses the oscillation component to further agitate the ink, which helps to ensure that the components in the ink can be fully integrated in the oil storage tank 1, thereby effectively improving the ink integration effect in the oil storage tank 1 and thus effectively ensuring the quality of subsequent printed products.

[0064] Specifically, the oscillation assembly includes a drive component 22, two first stirring plates 23, and two second stirring plates 24. The drive component 22 is integrally formed at the bottom of the second lifting plate 21. The two first stirring plates 23 and the two second stirring plates 24 are all horizontally mounted on the top of the partition plate 2. The two first stirring plates 23 and the two second stirring plates 24 are distributed in a "U" shape on the top of the partition plate 2, with the two first stirring plates 23 and the two second stirring plates 24 symmetrically arranged. The drive component 22 is used to drive the two first stirring plates 23 and the two second stirring plates 24 to slide in directions closer to or further away from each other. During the sliding process, the two first stirring plates 23 and the two second stirring plates 24 can agitate the ink in two directions, thereby significantly improving the ink stirring effect and making the ink mixing effect better.

[0065] Specifically, the driving component 22 has an overall "+" shaped structure, with each end of the driving component 22 being wedge-shaped. The ends of the two first stirring plates 23 and the two second stirring plates 24 near the driving component 22 are also wedge-shaped, forming a wedge-shaped fit between the end of the driving component 22 and the ends of the two first stirring plates 23 and the two second stirring plates 24. As the driving component 22 descends, during the wedge-shaped fit between the end of the driving component 22 and the ends of the first stirring plates 23 and the second stirring plates 24, the driving component 22 gradually drives the two first stirring plates 23 and the two second stirring plates 24 to slide towards or away from each other, thereby completing the stirring of the ink.

[0066] Each of the two first stirring plates 23 and the two second stirring plates 24, at the end furthest from the driving member 22, is connected in the horizontal direction to a return spring between itself and the inner wall of the oil storage tank 1. As the driving member 22 rises, the two first stirring plates 23 and the two second stirring plates 24 are reset to their initial positions by the return spring.

[0067] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel printing process that uses oil instead of plastic, characterized in that: Includes the following steps: S1. Pre-coating: After the ink in the oil storage tank (1) is stirred evenly, an appropriate amount of ink is coated on the flexible plate to make it have a uniform thickness and viscosity; S2. Printing: The flexible plate is placed on the printing machine, and the ink is transferred to the surface of the printed part by pressure and temperature. S3. Printing sequence: First layer: white cardstock; second layer: flexible water-based silver ink; third layer: printed color layer; fourth layer: printed gloss / matte varnish. S4. Drying: Hot air or UV drying is used to quickly dry and fix the ink onto the printed parts. The oil storage tank (1) is fixed with a partition (2) along the horizontal direction. The partition (2) divides the interior of the oil storage tank (1) into an upper and lower distributed stirring chamber (3) and an assembly chamber (4). The stirring chamber (3) is used to fill the corresponding ink, and a stirring blade (5) for stirring the ink is added to the stirring chamber (3). The stirring blade (5) is rotated and raised in the stirring chamber (3), and the stirring blade (5) intermittently stirs the ink in the oil storage tank (1). A cooling component is added to the oil storage tank (1). During the stirring process of the stirring blade (5) stirring the ink, the cooling component intermittently cools and lowers the temperature of the ink. A drive motor (6) is tightly attached to the top of the oil storage tank (1). A stirring shaft (7) is installed vertically at the bottom of the drive motor (6). The stirring shaft (7) extends into the stirring chamber (3) and is connected to the stirring blade (5). Two cooling boxes (15) are symmetrically installed on the left and right sides of the top of the oil storage tank (1), and the two cooling boxes (15) alternately fill the stirring chamber (3) with cold air; The top of the stirring shaft (7) is integrally fitted with a rotating plate (16) along the horizontal direction. The top of the rotating plate (16) is in contact with the inner wall of the oil storage tank (1). One end of the rotating plate (16) is provided with a first vent hole (17), and the bottom of both cooling boxes (15) is provided with a second vent hole (18). The first vent hole (17) and the second vent hole (18) are used to fill the cold air in the cooling box (15) into the stirring chamber (3). The bottom of the drive motor (6) is connected to a first gear (19) via a vertically arranged rotating shaft. The first gear (19) is horizontally arranged. The top of the stirring shaft (7) is integrally connected to a second gear (20) in the horizontal direction. The second gear (20) is horizontally arranged. The first gear (19) and the second gear (20) are meshed together.

2. The novel printing process using oil instead of plastic according to claim 1, characterized in that: The first gear (19) has one half of teeth and the other half of smooth parts.

3. The novel printing process using oil instead of plastic according to claim 2, characterized in that: A second lifting plate (21) is provided in the stirring chamber (3). The second lifting plate (21) is located between the partition plate (2) and the stirring blade (5). The second lifting plate (21) is slidably installed in the stirring chamber (3) in the vertical direction. An oscillation component is provided at the bottom of the second lifting plate (21). The oscillation component agitates the ink during the lifting process of the second lifting plate (21).

4. The novel printing process using oil instead of plastic according to claim 3, characterized in that: The oscillation component includes a driving member (22), two first stirring plates (23) and two second stirring plates (24). The driving member (22) is integrally formed at the bottom of the second lifting plate (21). The two first stirring plates (23) and the two second stirring plates (24) are both horizontally installed on the top of the partition plate (2). The two first stirring plates (23) and the two second stirring plates (24) are distributed in a "mouth" - shaped structure on the top of the partition plate (2). The two first stirring plates (23) are symmetrically arranged, and the two second stirring plates (24) are symmetrically arranged. The driving member (22) is used to drive the two first stirring plates (23) and the two second stirring plates (24) to slide in directions approaching or moving away from each other.

5. The novel printing process using oil instead of plastic according to claim 4, characterized in that: The driving member (22) has an overall "cross" - shaped structure, and the ends of the driving member (22) are wedge - shaped. One ends of the two first stirring plates (23) and the two second stirring plates (24) close to the driving member (22) are wedge - shaped. The ends of the driving member (22) and the ends of the two first stirring plates (23) and the two second stirring plates (24) are in wedge - shaped fit.

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