Device for modifying and coating titanium dioxide phosphate and hydrated alumina with decorative paper-based material

Abstract

The invention provides a device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated alumina, which is characterized by comprising a primary coating chamber, a primary drying chamber, a secondary coating chamber, a secondary drying chamber and an alumina dipping tank mechanism, the primary coating chamber, the primary drying chamber, the secondary coating chamber, the secondary drying chamber and the aluminum oxide dipping tank mechanism are sequentially arranged from top to bottom and internally communicated to form a continuous channel, and a base material enters from the coating chamber, sequentially passes through the primary drying chamber, the secondary coating chamber and the secondary drying chamber and finally comes out from the aluminum oxide dipping tank mechanism; according to the trowelling roller, the surface defects of a spraying coating are eliminated, local over-thickness of the coating is avoided, and recycling of redundant liquid is achieved. The primary coating layer is mechanically compacted by the coating roller, so that the coating density is improved; the liquid supplementing box supplements mixed liquid through the distributed liquid supplementing pipes, the hole defect possibly existing in one-time coating is repaired, and dual quality assurance is formed.

Description

Technical Field

[0001] The invention relates to the technical field of paper production and processing, in particular to a device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide. Background Art

[0002] In the field of decorative paper-based materials, composite coating technology using titanium dioxide phosphate and hydrated aluminum oxide is a key process for improving the material's weather resistance, hiding power, and surface hardness. Traditional coating processes typically use a single-layer coating or impregnation method to achieve functional layer attachment through chemical adsorption, but there are the following technical bottlenecks:

[0003] Coating Adhesion Limitations

[0004] Existing technologies rely heavily on chemical bonding to achieve the bond between the coating and the substrate, but flat coating methods are limited by the physical topography of the substrate surface. Titanium dioxide-phosphate mixtures adhere only through intermolecular forces and are prone to detachment when the substrate surface is uneven or subjected to external friction, significantly reducing the durability of the decorative paper. Furthermore, traditional processes lack a pretreatment mechanism for the substrate surface, resulting in insufficient penetration depth of the mixture and limited interfacial bonding strength by the inherent porosity of the substrate.

[0005] Coating uniformity control defects

[0006] A single spraying process struggles to address uneven coating thickness distribution. During the spraying process, surface tension causes droplets to form a shrinking film on the substrate surface, leading to edge accumulation and a thin layer in the center. Traditional smoothing devices, often using fixed scrapers or single-direction rollers, are unable to dynamically adjust the coating's micromorphology. Locally thick areas are prone to cracking, while thin areas can lead to functional layer failure, ultimately impacting the overall performance consistency of the decorative paper. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated alumina, aiming to solve the problems of coating adhesion limitations and coating uniformity control defects.

[0008] The present invention provides a device for modifying and coating decorative paper-based materials with titanium dioxide phosphate and hydrated alumina. The device is characterized by comprising a primary coating chamber, a primary drying chamber, a secondary coating chamber, a secondary drying chamber, and an alumina impregnation tank mechanism. The primary coating chamber, the primary drying chamber, the secondary coating chamber, the secondary drying chamber, and the alumina impregnation tank mechanism are arranged in sequence from top to bottom and are internally interconnected to form a continuous channel. The substrate enters the coating chamber, passes through the primary drying chamber, the secondary coating chamber, and the secondary drying chamber in sequence, and finally exits the alumina impregnation tank mechanism.

[0009] The primary coating chamber includes a primary coating chamber body, clean water spray heads are symmetrically arranged on both sides of the interior of the primary coating chamber body, groove pressing rollers are symmetrically arranged inside the primary coating chamber body and below the clean water spray mechanism, and the groove pressing rollers are evenly provided with bumps, titanium dioxide phosphate mixture spray heads are symmetrically fixedly arranged inside the primary coating chamber body and below the groove pressing rollers, and smoothing rollers are symmetrically arranged inside the primary coating chamber body and below the titanium dioxide phosphate mixture spray heads.

[0010] The preferred technical solution is that slide grooves are symmetrically provided on both sides of the primary coating chamber body, the slide grooves correspond to the top of the smoothing roller, two sliders are slidingly provided in the slide grooves, the outer ends of the sliders are hingedly provided with swing arms, the lower ends of the swing arms are hinged on the hydraulic rods of the hydraulic cylinders, the hydraulic cylinders are fixedly provided on the outside of the primary drying chamber, the swing arms are symmetrically provided, and air outlet pipes are fixedly provided on the sliders respectively, and only an air blowing head is fixed on the inner end side of the air outlet pipes, the air outlet end of the air blowing head is close to the two sides of the smoothing roller, and the outer end of the air outlet pipe extends to the outside of the primary coating chamber body through the slide groove.

[0011] A preferred technical solution is that arc-shaped baffles are symmetrically slidably provided on both sides of the primary coating chamber body, the arc-shaped baffles are located above the slide groove, and a fixed plate is fixedly provided on the side of the primary coating chamber body and at one end of the arc-shaped baffle, the fixed plate is provided with an arc-shaped groove corresponding to the end side of the arc-shaped baffle, and the end side of the arc-shaped baffle is provided with an adjusting screw, and the adjusting screw passes through the arc-shaped groove.

[0012] A preferred technical solution is that the secondary coating chamber includes a secondary coating chamber body, the interior of the secondary coating chamber body is symmetrically provided with coating rollers, the exterior of both sides of the secondary coating chamber body is symmetrically provided with fluid replenishing boxes, the inner side of the fluid replenishing boxes is evenly provided with fluid replenishing tubes, and the inner end side of the fluid replenishing tubes extends to the interior of the secondary coating chamber body and is close to the upper side of the coating roller.

[0013] According to a preferred technical solution, a cavity is provided inside the secondary coating chamber and below the coating roller, and waste collection boxes are fixedly provided at both ends of the secondary coating chamber and at positions corresponding to the cavities.

[0014] The preferred technical solution is that air guide boxes are fixedly provided at the lower sides of both ends of the primary coating chamber body and at both ends of the primary drying chamber, the air guide box includes an air guide box body, two air guide plates are symmetrically fixedly provided on the inner side of the air guide box body, the upper ends of the air guide plates are arc-shaped and close to the outer sides of the two smoothing rollers, an air guide groove is provided between the air guide plates, an air outlet is provided at the lower end of the air guide groove, and the air outlet is located on the upper side between the two ends of the coating roller.

[0015] According to a preferred technical solution, a wind shield is fixedly provided between the upper ends of the wind guide plates, the upper side of the wind shield is arc-shaped and cooperates with the end side edges of the two smoothing rollers, and the lower part of the wind shield is provided with an opening.

[0016] The preferred technical solution is that the alumina impregnation tank mechanism includes a fixed seat, a guide roller is rotatably provided on the fixed seat and located below the secondary drying chamber, a preheating roller is rotatably provided on the fixed seat and located behind the guide roller, a tensioning roller is rotatably provided on the fixed seat and located behind the preheating roller, an alumina impregnation tank is rotatably provided on the fixed seat and located behind the tensioning roller, and a guide roller group is rotatably provided inside the alumina impregnation tank.

[0017] According to a preferred technical solution, the tensioning roller is rotatably mounted on a rotating frame, the rotating frame is rotatably mounted on a fixed seat, and an adjusting hydraulic cylinder is disposed between one side of the rotating frame and the fixed seat.

[0018] According to a preferred technical solution, heating tubes are respectively provided inside the primary drying chamber and the secondary drying chamber.

[0019] Technical effects and advantages of the present invention:

[0020] Coating adhesion enhancement mechanism

[0021] A water spray nozzle pre-wets the substrate surface, and a grooved roller forms the groove structure, significantly enhancing the mechanical interlocking effect between the titanium dioxide phosphate mixture and the substrate. This design breaks through the limitations of traditional flat coatings by utilizing physical modification to increase the substrate surface area, allowing the mixture to penetrate deeper and form a more stable interfacial bonding layer.

[0022] Coating uniformity assurance system

[0023] A smoothing roller and reciprocating air blowing device work together: the smoothing roller eliminates surface defects in the spray coating, while the air blowing head controls coating thickness distribution through dynamic reciprocating motion (achieved by a hydraulic cylinder driving a slider in a chute) A specially designed air guide box directs excess coating liquid to the secondary coating area, preventing localized over-thickness and ensuring that excess liquid is utilized.

[0024] Equipment self-cleaning and maintenance optimization

[0025] The curved baffle system performs a dual function: during production, an adjustable design prevents coating liquid splashing. During shutdown and restart, an adjustment screw ensures close contact between the curved baffle and the smoothing roller, and an air blower scrapes away condensate and transfers it to a waste collection box. This design reduces the frequency of equipment downtime for cleaning and extends continuous production cycles.

[0026] Two-stage densification process

[0027] The secondary coating chamber uses a combination of coating roller rolling and fluid replenishment: the coating roller mechanically compacts the primary coating layer to improve the coating density; the fluid replenishment box replenishes the mixed liquid through distributed fluid replenishment tubes to repair possible porosity defects in the primary coating, forming a double quality assurance.

[0028] Alumina impregnation pretreatment

[0029] The preheating roller and the tensioning adjustment device constitute a tension control system: the preheating roller increases the temperature of the substrate to enhance the permeability of the alumina solution, and the tensioning roller achieves precise control of the substrate conveying tension through hydraulic adjustment, ensuring smooth operation of the substrate during the impregnation process and improving the uniformity of the alumina coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of part A;

[0032] Figure 3 It is a partial cross-sectional structural schematic diagram of the present invention;

[0033] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of part B;

[0034] Figure 5 It is a partial cross-sectional structural schematic diagram of the present invention;

[0035] Figure 6 This is a structural diagram of the primary drying chamber and air guide box of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the air guide box of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the alumina immersion tank of the present invention;

[0038] Figure 9 This is a schematic diagram of the structure of the grooved roller of the present invention;

[0039] For example: 1-primary coating chamber; 2-primary drying chamber; 3-secondary coating chamber; 4-secondary drying chamber; 5-alumina impregnation tank mechanism; 6-air guide box; 11-primary coating chamber body; 12-clean water spray head; 13-grooving roller; 14-titanium dioxide phosphate mixture spray head; 15-smoothing roller; 16-chute; 17-sliding block; 18-swing arm; 19-hydraulic cylinder; 110-exhaust pipe; 111-blowing head; 112-arc baffle; 113-fixing plate; 114-arc groove; 115 -adjusting screw; 31-secondary coating chamber body; 32-coating roller; 33-liquid replenishing box; 34-liquid replenishing tube; 35-cavity; 36-waste collection box; 51-fixed seat; 52-guide roller; 53-preheating roller; 54-tensioning roller; 55-alumina impregnation tank; 56-guide roller group; 57-rotating frame; 58-adjusting hydraulic cylinder; 61-air guide box body; 62-air guide plate; 63-air guide slot; 64-air outlet; 65-wind shield; 66-opening; 131-bump; 100-substrate. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0041] like Figure 1 and Figure 3 As shown, a device for modifying and coating titanium dioxide phosphate and hydrated alumina on a decorative paper-based material is characterized in that it includes a primary coating chamber 1, a primary drying chamber 2, a secondary coating chamber 3, a secondary drying chamber 4 and an alumina impregnation tank mechanism 5. The primary coating chamber 1, the primary drying chamber 2, the secondary coating chamber 3, the secondary drying chamber 4 and the alumina impregnation tank mechanism 5 are arranged in sequence from top to bottom and are internally connected to form a continuous channel. The substrate 100 enters from the coating chamber 1, passes through the primary drying chamber 2, the secondary coating chamber 3 and the secondary drying chamber 4 in sequence, and finally comes out of the alumina impregnation tank mechanism 5.

[0042] like Figure 3 、 Figure 4 and Figure 9As shown, the primary coating chamber 1 includes a primary coating chamber body 11. Clean water spray heads 12 are symmetrically arranged on both sides of the primary coating chamber body 11. The clean water spray heads 12 are used to pre-wet the surface of the substrate 100, enhancing the adhesion of the subsequent titanium dioxide phosphate mixture. The wet surface of the substrate 100 also facilitates the grooving of the grooving roller 13, preventing the grooves on the surface of the substrate 100 from rebounding. Grooving rollers 13 are symmetrically arranged and rotated within the primary coating chamber body 11, located below the clean water spray mechanism 12. Grooving rollers 13 are evenly arranged with bumps 131. These mechanically press grooves into the wetted substrate 100, increasing the surface area of the substrate 100 to accommodate more coatings and allowing the titanium dioxide phosphate mixture to more easily penetrate the interior of the substrate 100. A titanium dioxide phosphate mixture spray head 14 is symmetrically fixed inside the primary coating chamber 11 and below the groove pressing roller 13, which evenly sprays the mixture onto the surface of the substrate 100 to form an initial coating layer. A smoothing roller 15 is symmetrically rotated inside the primary coating chamber 11 and below the titanium dioxide phosphate mixture spray head 14. Since grooves are pressed on the surface of the substrate 100, it is difficult to spray the surface of the substrate 100 evenly by direct spraying. Therefore, the coating surface is further smoothed by the smoothing roller 15 to ensure uniformity.

[0043] like Figure 3 and Figure 4As shown, chutes 16 are symmetrically provided on both sides of the primary coating chamber body 11, and the chutes 16 correspond to the top of the smoothing roller 15. Two sliders 17 are slidingly provided in the chutes 16. The outer end side of the slider 17 is hinged with a swing arm 18. The lower end of the swing arm 18 is hinged on the hydraulic rod of the hydraulic cylinder 19. The hydraulic cylinder 19 is fixedly provided on the outside of the primary drying chamber 2. The swing arm 18 is symmetrically provided. An air outlet pipe 110 is fixed on the slider 17 respectively. Only an air blowing head 111 is fixed on the inner end side of the air outlet pipe 110. The air outlet end of the air blowing head 111 is close to the two sides of the smoothing roller 15, and the outer end of the air outlet pipe 110 extends to the outside of the primary coating chamber body 11 through the chute 16. When the hydraulic rod of the hydraulic cylinder 19 moves up and down, the two blowing heads 111 can be driven to move repeatedly in the middle and above the end of the smoothing roller 15 through the cooperation of the slider 17 and the slide 16. When the coating process is carried out and the two blowing heads 111 move to both sides, the excess liquid accumulated between the smoothing roller 15 and the substrate 100 can be blown to the two ends of the smoothing roller 15. The excess liquid enters the secondary coating chamber 31 through the interior of the air guide box 61 and falls on the upper side of the end of the coating roller 32. At this time, the blowing head 111 stays on the end side of the smoothing roller 15 for a longer period of time, and the gas generated by the blowing head 111 can be blown out from the air outlet 64, and the liquid falling on the coating roller 32 can be blown toward the coating roller 32. This can prevent the liquid on the upper side of the end of the coating roller 32 from flowing away from the end of the coating roller 32, resulting in waste. The present application can transport the excess liquid from the first coating to be used in the second coating, which is beneficial to saving costs. When the air blowing head 111 returns from the end side of the smoothing roller 15 to the middle of the smoothing roller 15, it is not necessary to blow air.

[0044] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, curved baffles 112 are symmetrically slidably provided on both sides of the primary coating chamber body 11. The curved baffles 112 are located above the slide groove 16. A fixing plate 113 is fixedly provided on the side of the primary coating chamber body 11 and at one end of the curved baffle 112. The fixing plate 113 is provided with an arc groove 114 corresponding to the end side of the curved baffle 112. The end side of the curved baffle 112 is provided with an adjustment screw 115, which passes through the arc groove 114. The curved baffle 112 of the present application can be adjusted by adjusting the adjustment screw 115 to adjust the length of the curved baffle 112 inside the primary coating chamber body 11. When the curved baffle 112 slides outward, the cooperation between the curved baffle 112 and the sliding groove of the curved baffle 112 can also scrape off condensation on the upper surface of the curved baffle 112. When there is a certain gap between the inner side of the arc-shaped baffle 112 and the smoothing roller 15, since the arc-shaped baffle 112 can block the inner side of the chute 16, the arc-shaped baffle 112 can prevent the atomized liquid of the titanium dioxide phosphate mixture spray head 14 from escaping from the chute 16 to a certain extent. It can also prevent the liquid sprayed from the titanium dioxide phosphate mixture spray head 14 from falling on the slider 17 and the air outlet head 111, thereby avoiding waste. The slider 17 and the air outlet head 111 do not need to be cleaned frequently. When the machine is shut down for a long time, condensed titanium dioxide phosphate mixture condensate will appear on the surface of the smoothing roller 15. When restarting, cleaning the smoothing roller 15 before the coating process can achieve a better smoothing effect. When the inner side of the arc-shaped baffle 112 is in complete and close contact with the smoothing roller 15, the smoothing roller 15 rotates, and the arc-shaped baffle 112 can scrape off the condensation on the surface of the smoothing roller 15. The fallen condensation is between the upper side of the smoothing roller 15 and the arc-shaped baffle 112. When the air outlet head 111 moves to both sides, the fallen condensation can be blown to the two ends of the smoothing roller 15, and enter the secondary coating chamber 31 through the interior of the air guide box 61, and finally enter the cavity 35. Then, the condensation generated by manually cleaning the coating roller 32 can be manually collected together in the waste collection box 36 to complete the startup cleaning work.

[0045] like Figure 3 and Figure 5 As shown, the secondary coating chamber 3 includes a secondary coating chamber body 31, within which coating rollers 32 are symmetrically rotated. These rollers perform a secondary rolling operation on the substrate 100, improving the coating density. Fluid replenishment boxes 33 are symmetrically positioned on either side of the secondary coating chamber body 31. Fluid replenishment tubes 34 are evenly distributed within the boxes 33. The inner ends of the fluid replenishment tubes 34 extend into the interior of the secondary coating chamber body 31, near the upper side of the coating rollers 32. Through these evenly distributed fluid replenishment tubes 34, the mixed liquid is replenished to the coating roller 32 area, repairing defects from the primary coating.

[0046] like Figure 1 、 Figure 3 and Figure 5As shown, a cavity 35 is provided inside the secondary coating chamber 31 and below the coating roller 32, and a waste collection box 36 is fixedly provided at both ends of the secondary coating chamber 31 and corresponding to the position of the cavity 35 to collect excess waste liquid during the coating process. Each time the machine is started, waste will condense on the surface of the smoothing roller 15, and the waste collection box 36 can also collect waste generated when cleaning the smoothing roller 15.

[0047] like Figure 1 、 Figure 5 、 Figure 6 and Figure 7 As shown, an air guide box 6 is fixedly provided at the lower side of both ends of the primary coating chamber body 11 and at both ends of the primary drying chamber 2. The air guide box 6 includes an air guide box body 61. Two air guide plates 62 are symmetrically fixedly provided on the inner side of the air guide box body 61. The upper ends of the air guide plates 62 are arc-shaped and close to the outer sides of the two smoothing rollers 15. Air guide grooves 63 are provided between the air guide plates 62. The lower ends of the air guide grooves 63 are provided with air outlets 64. The air outlets 64 are located on the upper side between the two ends of the coating roller 32. The function of the air guide box 6 is to guide the wind blown out by the blowing head 111 to the upper side between the two ends of the coating roller 32.

[0048] like Figure 1 、 Figure 5 、 Figure 6 and Figure 7 As shown, a wind shield 65 is fixedly provided between the upper ends of the wind guide plate 62. The upper side of the wind shield 65 is arc-shaped and cooperates with the end side edges of the two smoothing rollers 15. An opening 66 is provided at the lower part of the wind shield 65. The function of the wind shield 65 is to prevent the wind blown out by the blowing head 111 from blowing too much toward the lower side of the smoothing roller 15 and the upper side of the primary drying chamber 2, and to blow the wind blown out by the blowing head 111 more toward the upper side between the two ends of the covering roller 32.

[0049] like Figure 1 and Figure 8 As shown, the alumina impregnation tank mechanism 5 includes a fixed base 51. A guide roller 52 is rotatably mounted on the fixed base 51 and located below the secondary drying chamber 4. The guide roller 52 guides the substrate 100 through a preheating roller 53. A preheating roller 53 is rotatably mounted on the fixed base 51 and located behind the guide roller 52. It preheats the substrate 100 to promote the penetration of the alumina solution. A tensioning roller 54 is rotatably mounted on the fixed base 51 and located behind the preheating roller 53. The tensioning roller 54 is used to adjust the tension of the substrate 100 during transport. An alumina impregnation tank 55 is rotatably mounted on the fixed base 51 and located behind the tensioning roller 54. A guide roller group 56 is rotatably mounted inside the alumina impregnation tank 55. The guide roller group 56 guides the substrate 100 to be impregnated in the alumina impregnation tank 55. The tensioning roller 54 is rotatably mounted on a rotating frame 57 , and the rotating frame 57 is rotatably mounted on a fixed seat 51 . An adjusting hydraulic cylinder 58 is provided between one side of the rotating frame 57 and the fixed seat 51 for adjusting the tensioning roller 54 .

[0050] Heating tubes are respectively provided inside the primary drying chamber 2 and the secondary drying chamber 4 .

[0051] The specific workflow of the present invention is as follows:

[0052] 1. Preprocessing stage

[0053] The substrate 100 enters the primary coating chamber 1 and is wetted by the clean water spray head 12 .

[0054] The groove pressing roller 13 presses out grooves to increase the surface area; the titanium dioxide phosphate mixture spray head 14 sprays the coating evenly.

[0055] The smoothing roller 15 cooperates with the air blowing head 111 to remove excess coating and smooth the surface of the substrate 100 .

[0056] 2. One-time drying

[0057] The substrate 100 enters the primary drying chamber 2, and the heating tube dries the coating through heat convection to form a stable primary coating layer.

[0058] 3. Secondary coating, reinforcement and uniformity

[0059] The substrate 100 enters the secondary coating chamber 3, and the coating roller 32 rolls the coating to increase the density.

[0060] The liquid replenishing tube 34 replenishes the mixed liquid to repair the defect, and the waste liquid flows into the waste collection box 36 through the cavity 35.

[0061] 4. Secondary drying and alumina impregnation

[0062] The secondary drying chamber 4 further dries the substrate 100 to ensure that the coating is completely cured.

[0063] The substrate 100 is preheated by the preheating roller 53 through the guide roller 52, and then enters the alumina impregnation tank 55 after the tension is adjusted by the tensioning roller 54, so that the substrate 100 is evenly immersed in the alumina solution to complete the modified coating of alumina.

[0064] It should be noted that after the substrate 100 is immersed in the alumina solution, it still needs to be cured and dried before being wound up. Since the mechanical structures for curing, drying, and winding are all conventional structures, this application does not elaborate on these details. In addition, this application also omits the motors, transmission structures, and other conventional structures that drive the smoothing roller 15, the coating roller 32, and the preheating roller 53, and this application does not elaborate on these conventional technical details.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for modifying and coating decorative paper-based materials with titanium dioxide phosphate and hydrated aluminum oxide, characterized in that: The invention comprises a primary coating chamber (1), a primary drying chamber (2), a secondary coating chamber (3), a secondary drying chamber (4) and an alumina impregnation tank mechanism (5), wherein the primary coating chamber (1), the primary drying chamber (2), the secondary coating chamber (3), the secondary drying chamber (4) and the alumina impregnation tank mechanism (5) are arranged in sequence from top to bottom and are internally connected to form a continuous channel, and the substrate enters from the coating chamber (1), passes through the primary drying chamber (2), the secondary coating chamber (3) and the secondary drying chamber (4) in sequence, and finally exits from the alumina impregnation tank mechanism (5); The primary coating chamber (1) comprises a primary coating chamber body (11), clean water spray heads (12) are symmetrically arranged on both sides of the interior of the primary coating chamber body (11), a groove pressing roller (13) is symmetrically arranged in rotation inside the primary coating chamber body (11) and below the clean water spray mechanism (12), and protrusions (131) are evenly arranged on the groove pressing roller (13), a titanium dioxide phosphate mixed liquid spray head (14) is symmetrically fixedly arranged inside the primary coating chamber body (11) and below the groove pressing roller (13), and a smoothing roller (15) is symmetrically arranged in rotation inside the primary coating chamber body (11) and below the titanium dioxide phosphate mixed liquid spray head (14).

2. The device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide according to claim 1, characterized in that: The primary coating chamber body (11) is symmetrically provided with a slide groove (16) on both sides, the slide groove (16) corresponds to the top of the smoothing roller (15), and two sliders (17) are slidingly provided in the slide groove (16), and the outer end side of the slider (17) is hinged with a swing arm (18), and the lower end of the swing arm (18) is hinged on the hydraulic rod of the hydraulic cylinder (19), and the hydraulic cylinder (19) is fixedly provided on the outer side of the primary drying chamber (2). The swing arm (18) is symmetrically provided, and an air outlet pipe (110) is fixedly provided on the slider (17), and the inner end side of the air outlet pipe (110) is fixedly provided with only an air blowing head (111), and the air outlet end of the air blowing head (111) is close to the two sides of the smoothing roller (15), and the outer end of the air outlet pipe (110) extends to the outside of the primary coating chamber body (11) through the slide groove (16).

3. The device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide according to claim 2, characterized in that: Arc baffles (112) are symmetrically and slidingly provided on both sides of the primary coating chamber body (11), and the arc baffles (112) are located above the slide groove (16). A fixing plate (113) is fixedly provided on the side of the primary coating chamber body (11) and at one end of the arc baffle (112). An arc groove (114) corresponding to the end side of the arc baffle (112) is provided on the fixing plate (113), and an adjusting screw (115) is provided on the end side of the arc baffle (112), and the adjusting screw (115) passes through the arc groove (114).

4. The device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide according to claim 3, characterized in that: The secondary coating chamber (3) includes a secondary coating chamber body (31), a coating roller (32) is symmetrically arranged inside the secondary coating chamber body (31), and a fluid replenishing box (33) is symmetrically arranged on the outside of both sides of the secondary coating chamber body (31). A fluid replenishing tube (34) is evenly arranged on the inner side of the fluid replenishing box (33), and the inner end side of the fluid replenishing tube (34) extends to the interior of the secondary coating chamber body (31) and is close to the upper side of the coating roller (32).

5. The device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide according to claim 4, characterized in that: A cavity (35) is provided inside the secondary coating chamber (31) and below the coating roller (32), and waste collection boxes (36) are fixedly provided at both ends of the secondary coating chamber (31) and at positions corresponding to the cavity (35).

6. The device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide according to claim 4, characterized in that: An air guide box (6) is fixedly provided at the lower sides of both ends of the primary coating chamber body (11) and at both ends of the primary drying chamber (2), the air guide box (6) comprises an air guide box body (61), two air guide plates (62) are symmetrically fixedly provided on the inner side of the air guide box body (61), the upper ends of the air guide plates (62) are arc-shaped and close to the outer sides of the two smoothing rollers (15), air guide grooves (63) are provided between the air guide plates (62), and an air outlet (64) is provided at the lower end of the air guide groove (63), and the air outlet (64) is located on the upper side between the two ends of the coating roller (32).

7. The device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide according to claim 6, characterized in that: A windshield (65) is fixedly provided between the upper ends of the wind guide plates (62), the upper side of the windshield (65) is arc-shaped and cooperates with the end side edges of the two smoothing rollers (15), and the lower part of the windshield (65) is provided with an opening (66).

8. The device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide according to claim 1, characterized in that: The alumina impregnation tank mechanism (5) includes a fixed seat (51), a guide roller (52) is rotatably provided on the fixed seat (51) and located below the secondary drying chamber (4), a preheating roller (53) is rotatably provided on the fixed seat (51) and located behind the guide roller (52), a tensioning roller (54) is rotatably provided on the fixed seat (51) and located behind the preheating roller (53), an alumina impregnation tank (55) is rotatably provided on the fixed seat (51) and located behind the tensioning roller (54), and a guide roller group (56) is rotatably provided inside the alumina impregnation tank (55).

9. The device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide according to claim 8, characterized in that: The tensioning roller (54) is rotatably mounted on a rotating frame (57), and the rotating frame (57) is rotatably mounted on a fixed seat (51). An adjusting hydraulic cylinder (58) is disposed between one side of the rotating frame (57) and the fixed seat (51).

10. The device for modifying and coating a decorative paper-based material with titanium dioxide phosphate and hydrated aluminum oxide according to claim 1, characterized in that: Heating tubes are respectively provided inside the primary drying chamber (2) and the secondary drying chamber (4).

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