A processing technology for antibacterial printed decorative paper

Abstract

The present invention discloses a processing technology for antibacterial printed decorative paper, specifically relates to antibacterial printed decorative paper, the process comprising the following steps: S01, the antibacterial outer decorative paper roll is introduced by a paper feed roller rotatably arranged on a gluing mechanism, so that the outer decorative paper adhesive surface of the antibacterial outer decorative paper roll contacts the gluing groove area; S02, it is then led out by a glue-evening roller rotatably arranged on the gluing mechanism; S03, the inner lining paper of the inner lining paper roll and the outer decorative paper adhesive surface are bonded and passed through symmetrically arranged negative pressure rollers; S04, after bonding, they are hot-pressed and bonded by a hot pressing roller group. The antibacterial printed decorative paper processing technology provided by the invention improves the gluing mechanism in the process, so that the uniformity of the gluing is guaranteed, and the occurrence of local bulging due to uneven gluing or excessive glue overflowing from the side is avoided.

Description

Technical Field

[0001] The invention relates to antibacterial printed decorative paper, and in particular to a processing technology of antibacterial printed decorative paper. Background Art

[0002] Antibacterial printed decorative paper is a decorative material with antibacterial function. It is usually used for interior decoration, especially in places where environmental hygiene needs to be maintained, such as hospitals, schools, kitchens, etc. Antibacterial printed decorative paper is added with antibacterial agents or other antibacterial materials during the production process, which can effectively inhibit the growth of bacteria, thereby reducing bacterial pollution to the environment and improving the hygiene level of the space.

[0003] Publication (announcement) number: CN116100910A, Publication (announcement) date: 2023-05-12, discloses an antibacterial wear-resistant decorative paper and a preparation method thereof. The antibacterial wear-resistant decorative paper includes a base layer, the top and bottom surfaces of the base layer are both glued to a reinforcing layer, the top surface of the top reinforcing layer is glued to a decorative layer, and the top surface of the decorative layer is glued to a wear-resistant layer. When the present invention is in use, the reinforcing layer itself can improve the overall strength of the base layer, and the decorative layer sprayed with the wear-resistant layer is pasted on the top surface of the reinforcing layer by hot pressing, which can ensure the wear resistance of the flower paper and the base layer itself, and also evenly lay the melamine resin on the surface of the decorative layer by thermal curing during the hot pressing process, which can greatly improve the wear resistance and waterproofness of the top surface of the base layer; silver nitrate itself has a strong bactericidal effect, the waterproof fiber membrane can prevent water vapor from being contaminated on the bottom surface of the base layer through the waterproof layer, and the decorative layer and the wear-resistant layer can protect the top surface of the base layer to prevent the top surface of the base layer from wrinkling and damage under the contact of liquid.

[0004] Also, publication (announcement) number: CN113171928A, publication (announcement) date: 2021-07-27, a glue circulation roller under-type gluing device is disclosed, including a glue circulation component and a gluing component. The glue circulation component consists of a glue box, a glue pump, a heating system and a glue supply hose; the glue coating component consists of a glue coating roller, a glue chasing roller, a heating rod, a mounting base plate, a glue roller motor and a conveying roller. The hot melt glue in the glue box is heated by the heating system and circulated between the glue coating roller and the glue chasing roller by the glue pump in the glue circulation component. After the glue coating roller and the glue chasing roller are driven by the glue roller motor to rotate and roll against each other, the surface of the glue coating roller is evenly covered with glue for coating the paper or plate passing under the glue coating roller. The excess glue flows into the glue box below through the gaps at both ends of the glue coating roller, and continues to be circulated by the glue pump between the glue coating roller and the glue chasing roller, thereby achieving uniform glue coating on the surface of paper and plates of various thicknesses and materials, effectively avoiding glue leakage in the gluing device, and improving the reliability and stability of glue coating.

[0005] In the prior art including the above two patents, the most important part of the production process of antibacterial wear-resistant decorative paper is the application of glue. With reference to the circulating roller-type gluing method disclosed in CN113171928A, the gluing method adopted is the gluing roller. This gluing method is a conventional technical means in this field, but the biggest problem is that the paper is contacted by the gluing roller, so that the glue is adhered. The glue adhered is uncertain, and the glue conveyed to the gluing roller must have an inlet. Obviously, the glue extrusion amount is the largest near the inlet, so it is difficult to ensure the uniformity of gluing. Summary of the invention

[0006] The purpose of the present invention is to provide a processing technology for antibacterial printed decorative paper to solve the above problems.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A processing technology for antibacterial printed decorative paper comprises the following steps:

[0009] S01, the antibacterial outer decorative paper roll is introduced by a paper feeding roller rotatably arranged on the gluing mechanism, so that the outer decorative paper adhesive surface of the antibacterial outer decorative paper roll contacts the gluing groove area;

[0010] S02, and then lead out by the glue-distributing roller rotatably arranged on the glue-applying mechanism;

[0011] S03, the inner lining paper and the outer decorative paper adhesive surfaces of the inner lining paper roll are attached and passed through symmetrically arranged negative pressure rollers;

[0012] S04, after bonding, heat pressing and laminating by hot pressing roller group.

[0013] Preferably, the gluing mechanism comprises a machine base, on which a push roller is rotatably provided, and the push roller is used to make a line formed by contact between the introduced outer decorative paper and the paper feed roller higher than the gluing groove.

[0014] Preferably, the glue applying groove is an arc-shaped structure and is arranged on the machine base, and the arc-shaped contour fits the paper feeding roller;

[0015] The number of the glue-applying grooves is several and they are arranged in a linear array and are divided into a conical profile and a frustum profile according to the structure, wherein:

[0016] An overflow glue grid plate is provided on the conical profile;

[0017] A plurality of glue-distributing protrusions arranged in a frustum array are arranged in the frustum profile, and the glue-distributing protrusions are used to form a plurality of glue paths arranged at equal distances on the adhesive surface of the outer decorative paper.

[0018] Preferably, the mesh of the overflowing glue grid plate is composed of a rubber cylinder and a truncated cone cylinder;

[0019] The glue tank includes a storage capsule, and the distance between the inner bottom of the storage capsule and the overflow glue grid plate decreases from one side of the conical profile away from the frustum profile to the other side;

[0020] The inner diameter of the truncated cone cylinder increases gradually from one side of the conical contour away from the truncated cone contour to the other side.

[0021] Preferably, an air chamber is formed between every two mesh holes in the overflow glue grid plate, and an inlet of the air chamber is provided with a cover that is pushed by airflow and rotates back and forth to control opening and closing;

[0022] The air chamber is used to drive the radius of the rubber cylinder to change periodically.

[0023] Preferably, a glue scraping platform arranged close to the glue-distributing roller is provided on the machine base, and a flow-guiding glue path is formed from the glue scraping platform to the glue-applying groove, and the flow-guiding glue path does not contact the adhesive surface of the outer decorative paper;

[0024] The flow guiding rubber channel includes a mesh panel.

[0025] Preferably, the side of the scraper platform facing the guide rubber channel is a horizontal plane, and a wing-shaped protrusion connected to the scraper platform is provided on the horizontal plane;

[0026] The horizontal plane is provided with a nozzle portion arranged adjacent to the airfoil-shaped protrusion, and the air outlet direction of the nozzle portion is toward the grid panel.

[0027] Preferably, the guide rubber channel comprises reinforcing plates arranged in an array on the back of the grid panel;

[0028] a metal sheet arranged at a distance from the grid panel;

[0029] A back plate is arranged at a distance from the metal sheet, and the back plate and the metal sheet form a sandwich flow channel.

[0030] Preferably, the back of the metal sheet is provided with a composite flower piece located in the flow channel arrangement and composed of four arc-shaped metal plates;

[0031] A spring plate installed by symmetrically arranged U-shaped clamps is arranged on the metal sheet, and a first end of the spring plate extends into the composite flower piece, and a second end is arranged adjacent to the grid panel.

[0032] Preferably, the spring plate is located within the composite flower piece and accounts for one third of the total length.

[0033] In the above technical solution, the present invention provides an antibacterial printed decorative paper processing technology, which has the following beneficial effects: in the process, the paper is introduced through a paper feed roller, and then pressed into the gluing groove by the paper feed roller to achieve gluing. In the process of passing through the gluing groove, the adhesive surface of the outer decorative paper is wrapped with a uniform glue path, thereby ensuring uniform gluing, avoiding the occurrence of local bulging due to uneven gluing, or excessive glue overflowing from the side. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0035] Figure 1 A flowchart provided for an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the gluing mechanism structure provided by an embodiment of the present invention;

[0037] Figure 3 The embodiment of the present invention provides Figure 2 A schematic diagram of the cross-sectional structure of;

[0038] Figure 4 A schematic diagram of the structure of a glue tank provided in an embodiment of the present invention;

[0039] Figure 5 A schematic diagram of the structure of a glue separation protrusion provided in an embodiment of the present invention;

[0040] Figure 6 The embodiment of the present invention provides Figure 4 A schematic diagram of the cross-sectional structure of;

[0041] Figure 7 A schematic diagram of the assembly structure of the cover and the reciprocating guide groove member provided in an embodiment of the present invention;

[0042] Figure 8 A schematic diagram of the structure of a metal sheet provided in an embodiment of the present invention.

[0043] Description of reference numerals:

[0044] 1. Antibacterial outer decorative paper roll; 2. Gluing mechanism; 21. Push roller; 22. Glue scraping platform; 221. Wing-shaped protrusion; 222. Nozzle; 23. Glue guide channel; 231. Grid panel; 232. Reinforcement plate; 233. Metal sheet; 23331. Composite flower piece; 2332. U-shaped clamp; 2333. Spring plate; 234. Back plate; 24. Machine base; 3. Paper feeding roller; 4. Glue applying groove; 41. Conical profile; 411. Glue overflow grid plate; 4111. Rubber cylinder; 4112. Cone cylinder; 42. Cone profile; 421. Glue distributing protrusion; 43. Storage capsule; 44. Air cabin; 45. Covering; 46. Reciprocating guide groove; 5. Glue distribution roller; 6. Lining paper roll; 7. Negative pressure roller; 8. Hot pressing roller group. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0046] like Figure 1-8 As shown, a process for processing antibacterial printed decorative paper comprises the following steps:

[0047] S01, the antibacterial outer decorative paper roll 1 is introduced by a paper feed roller 3 rotatably arranged on a gluing mechanism 2, so that the outer decorative paper adhesive surface of the antibacterial outer decorative paper roll 1 contacts the gluing groove 4 area;

[0048] S02, and then lead out by the glue-distributing roller 5 rotatably arranged on the glue-distributing mechanism 2;

[0049] S03, the inner lining paper and the outer decorative paper adhesive surfaces of the inner lining paper roll 6 are attached and passed through the symmetrically arranged negative pressure rollers 7;

[0050] S04, after bonding, the hot pressing roller group 8 is used for hot pressing and laminating.

[0051] Specifically, the hot pressing roller group 8 in the embodiment is composed of at least a symmetrically arranged roller group, and the bonding surfaces of the inner lining paper and the outer decorative paper are attached between the symmetrically arranged roller groups. This belongs to the prior art and will not be described in detail.

[0052] In the above technology, paper is introduced through the paper feed roller 3 and then pressed into the gluing groove 4 by the paper feed roller 3 to achieve gluing. During the process of passing through the gluing groove 4, the adhesive surface of the outer decorative paper is coated with a uniform glue path, thereby ensuring uniform gluing and avoiding the occurrence of local bulging due to uneven gluing or excessive glue overflowing from the side.

[0053] As an embodiment further provided by the present invention, the gluing mechanism 2 includes a base 24 on which a push roller 21 is rotatably provided. The push roller 21 is used to make the line formed by the introduced outer decoration contacting the paper feed roller 3 higher than the gluing groove 4.

[0054] Specifically, the push roller 21 in the embodiment is used to support the outer decorative paper, and then it is pressed down by the paper feeding roller 3 during the continuous transmission and fits into the gluing groove 4. Therefore, the purpose of setting the push roller 21 is to make the gluing groove 4 equal to half of the push roller 21, that is, a semicircular structure.

[0055] As an embodiment further provided by the present invention, the glue tank 4 is an arc-shaped structure and is disposed on the machine base 24, and the arc-shaped contour fits the paper feeding roller 3;

[0056] There are several glue grooves 4 arranged in a linear array, and divided into glue channels with a conical profile 41 and a frustum profile 42 according to the structure, wherein:

[0057] An overflow glue grid plate 411 is provided on the conical profile 41;

[0058] A plurality of glue-distributing protrusions 421 arranged in a frustum array are provided in the frustum profile 42 . The glue-distributing protrusions 421 are used to form a plurality of glue paths arranged at equal distances on the adhesive surface of the outer decorative paper.

[0059] Specifically, in the embodiment, as the outer decorative paper is conveyed, from the conical profile 41 to the frustum profile 42, the outer decorative paper contacts the glue through the overflowing glue grid plate 411 located at the top of the conical profile 41, and then spreads out under tension as it passes through the frustum profile 42, thereby forming a plurality of glue channels.

[0060] Then, as the conveying continues, the glue channel in each cone profile 42 will be divided into a number of equally spaced glue channels by the glue dividing protrusions 421, thereby ensuring the uniformity of the glue channel.

[0061] As another embodiment further provided by the present invention, the mesh of the overflowing glue grid plate 411 is composed of a rubber cylinder 4111 and a truncated cone cylinder 4112;

[0062] The glue tank 4 includes a storage capsule 43, and the distance between the inner bottom of the storage capsule 43 and the overflow glue grid plate 411 decreases from one side of the conical profile 41 away from the frustum profile 42 to the other side;

[0063] The inner diameter of the frustum tube 4112 increases gradually from one side of the conical profile 41 away from the frustum profile 42 to the other side.

[0064] Specifically, in the embodiment, as the outer decorative paper is conveyed, the outer decorative paper contacts the glue liquid through the overflowing glue grid plate 411 located at the top of the conical profile 41 during the process of passing through the frustum profile 42 from the conical profile 41, and then spreads out under tension as it passes through the frustum profile 42, thereby forming a plurality of glue channels. Then, as the conveyance continues, the glue-dividing protrusions 421 divide the glue channel into a plurality of equally spaced glue channels again, thereby ensuring the uniformity of the glue channels.

[0065] Furthermore, in the embodiment, when the glue is squeezed out through the overflowing glue grid plate 411, the inner diameter of the frustum tube 4112 increases from one side of the conical profile 41 away from the frustum profile 42 to the other side, so that the amount of glue discharged is balanced.

[0066] As another embodiment further provided by the present invention, an air chamber 44 is formed between every two mesh holes in the overflow glue grid plate 411, and a cover 45 which is pushed by the airflow and rotates back and forth to control the opening and closing is provided at the entrance of the air chamber 44; the air chamber 44 is used to drive the radius of the rubber cylinder 4111 to change periodically.

[0067] Specifically, the device in the embodiment is connected to an external air pump. When the air pump is running, the gas passes through the inlet. Because the inlet is fixedly installed with a reciprocating guide groove member 46, and the cover 45 is rotatably arranged on the reciprocating guide groove member 46, further, combined with Figure 7 As shown, it is assumed that the gas passes through the air hole opened on the cover 45. Since a propeller is provided in the air hole, the cover 45 is driven to rotate and is guided by the circulation groove in the reciprocating guide groove member 46, so that it moves along the axial direction of the reciprocating guide groove member 46. During the process, the cover 45 will contact the end face of the reciprocating guide groove member 46, and when the reciprocating guide groove member 46 contacts the cover 45, the air hole will be closed.

[0068] Furthermore, the air chamber 44 in the embodiment includes a one-way air outlet valve, but the air outlet speed of the one-way air outlet valve is lower than the air intake speed of the inlet. When the reciprocating guide groove member 46 is not in contact with the cover 45, the gas will accumulate in the air chamber 44, thereby shrinking the rubber cylinder 4111, thereby squeezing out the glue in the rubber cylinder 4111, and forming large glue bags in the glue channel.

[0069] As another embodiment further provided by the present invention, a glue scraping platform 22 arranged close to the glue equalizing roller 5 is provided on the machine base 24, and a guide glue path 23 is formed from the glue scraping platform 22 to the glue applying groove 4, and the guide glue path 23 does not contact the bonding surface of the outer decorative paper; the guide glue path 23 includes a grid panel 231.

[0070] Specifically, in the embodiment, when glue tracks are attached to the adhesive surface of the outer decorative paper, as the outer decorative paper continues to be transmitted, it will pass through the glue scraping station 22 to smooth and connect multiple glue tracks to form a plane, and excess glue will be scraped off by the glue scraping station 22. As more and more scraped glue accumulates, it falls onto the grid panel 231 and is recycled back into the storage capsule 43.

[0071] As another embodiment further provided by the present invention, the side of the scraper platform 22 facing the flow guide rubber channel 23 is a horizontal plane, and the horizontal plane is provided with an airfoil protrusion 221 connected to the scraper platform 22;

[0072] A nozzle portion 222 is disposed on the horizontal plane and is adjacent to the airfoil protrusion 221 . The air outlet direction of the nozzle portion 222 is toward the mesh panel 231 .

[0073] Specifically, the air pump also supplies air to the nozzle portion 222, and its purpose is two aspects:

[0074] The first aspect is to blow the glue accumulated on the glue scraping table 22 onto the mesh panel 231;

[0075] Secondly, when the nozzle part 222 blows air, a high-speed airflow is formed on one side of the airfoil protrusion 221. Under the air pressure difference, the airflow passes through the airfoil protrusion 221 and approaches the nozzle part 222, thereby generating a suction force, which attracts the deposited glue on the scraper table 22 to the nozzle part 222 and is blown onto the mesh panel 231.

[0076] It should be noted that, when the air pump in the embodiment is in operation, the gas passes through the inlet, because the inlet is fixedly installed with the reciprocating guide groove member 46, and the cover 45 is rotatably arranged on the reciprocating guide groove member 46, during the process, the cover 45 and the end surface of the reciprocating guide groove member 46 will contact each other, and when the reciprocating guide groove member 46 and the cover 45 contact each other, the air hole will be closed. Therefore, the airflow blown out of the nozzle part 222 will increase periodically, thereby increasing the attraction of the gas.

[0077] As another embodiment further provided by the present invention, the guide rubber channel 23 includes a reinforcement plate 232 arranged in an array on the back of the grid panel 231;

[0078] A metal sheet 233 spaced apart from the mesh panel 231;

[0079] The back plate 234 is arranged at a distance from the metal sheet 233 , and the back plate 234 and the metal sheet 233 form a sandwich flow channel.

[0080] Specifically, the airflow blown by the air pump in the embodiment passes through the clamping channel and then blown out through the nozzle portion 222 .

[0081] Furthermore, the back of the metal sheet 233 is provided with a composite flower piece 2331 located in a flow channel arrangement and composed of four arc-shaped metal plates;

[0082] A spring plate 2333 installed by symmetrically arranged U-shaped clips 2332 is provided on the metal sheet 233 , and a first end of the spring plate 2333 extends into the composite flower piece 2331 , and a second end is arranged adjacent to the mesh panel 231 .

[0083] Specifically, because the airflow in the embodiment passes through the clamping channel, it causes the composite flower piece 2331 to vibrate. Because the spring plate 2333 is located in the composite flower piece 2331, the spring plate 2333 vibrates under resonance, causing the airflow close to the side of the mesh panel 231 to vibrate, thereby accelerating the glue to enter from the mesh panel 231 and fall under the metal sheet 233, and under the vibration, the flow of glue liquid is accelerated.

[0084] As another embodiment further provided by the present invention, the spring plate 2333 is located within the composite flower piece 2331 and is one third of the total length.

[0085] Specifically, due to the special configuration of the spring plate 2333 in the embodiment, the long end is located on the side close to the mesh panel 231, while the short end is located in the flow channel, thereby aggravating the vibration of the metal sheet 233 on the glue receiving surface, thereby accelerating the downstream speed of the glue, avoiding the accumulation of glue on the metal sheet 233, or causing the glue to coagulate due to the slow downstream speed.

[0086] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A process for processing antibacterial printed decorative paper, characterized in that: The following steps are involved: S01, the antibacterial outer decorative paper roll (1) is introduced by a paper feed roller (3) rotatably arranged on the gluing mechanism (2), so that the outer decorative paper adhesive surface of the antibacterial outer decorative paper roll (1) contacts the gluing groove (4); S02, and then led out by the glue-distributing roller (5) rotatably arranged on the glue-distributing mechanism (2); S03, the inner lining paper and the outer decorative paper adhesive surfaces of the inner lining paper roll (6) are attached to each other and pass through symmetrically arranged negative pressure rollers (7); S04, after bonding, the two are heat-pressed and laminated by a heat-pressing roller group (8); The gluing mechanism (2) comprises a machine base (24), on which a push roller (21) is rotatably arranged, and the push roller (21) is used to make the line formed by the contact between the introduced outer decorative paper and the paper feed roller (3) higher than the gluing groove (4); The gluing groove (4) is an arc-shaped structure and is arranged on the machine base (24), and the arc-shaped contour fits the paper feeding roller (3); The glue application grooves (4) are in a plurality and are arranged in a linear array, and the glue application grooves (4) are divided into glue channels with a conical profile (41) and a frustum profile (42) according to the structure, wherein: An overflow glue grid plate (411) is provided on the conical profile (41); A plurality of glue-distributing protrusions (421) arranged in a frustum array are provided in the frustum profile (42), and the glue-distributing protrusions (421) are used to form a plurality of glue paths arranged at equal distances on the adhesive surface of the outer decorative paper; The mesh of the overflow glue grid plate (411) is composed of a rubber cylinder (4111) and a truncated cone cylinder (4112); The glue tank (4) comprises a storage capsule (43), and the distance between the inner bottom of the storage capsule (43) and the glue overflow grid plate (411) decreases from one side of the conical profile (41) away from the frustum profile (42) to the other side; The inner diameter of the frustum cylinder (4112) increases gradually from one side of the conical profile (41) away from the frustum profile (42) to the other side; An air chamber (44) is formed between every two mesh holes in the overflow glue grid plate (411), and a cover (45) is provided at the entrance of the air chamber (44) and is pushed by airflow to rotate back and forth to control opening and closing; The air chamber (44) is used to drive the radius of the rubber cylinder (4111) to change periodically.

2. The antibacterial printed decorative paper processing technology according to claim 1, characterized in that: The machine base (24) is provided with a glue scraping platform (22) arranged close to the glue spreading roller (5), and a glue guide path (23) is formed from the glue scraping platform (22) to the glue applying groove (4), and the glue guide path (23) does not contact the adhesive surface of the outer decorative paper; The flow guiding rubber channel (23) comprises a mesh panel (231).

3. The antibacterial printed decorative paper processing technology according to claim 2, characterized in that: The side of the glue scraping platform (22) facing the glue guide channel (23) is a horizontal plane, and a wing-shaped protrusion (221) connected to the glue scraping platform (22) is provided on the horizontal plane; The horizontal plane is provided with a nozzle portion (222) arranged adjacent to the airfoil-shaped protrusion (221), the air outlet direction of the nozzle portion (222) being towards the grid panel (231).

4. The antibacterial printed decorative paper processing technology according to claim 2, characterized in that: The flow guiding rubber channel (23) comprises reinforcing plates (232) arranged in an array on the back side of the grid panel (231); A metal sheet (233) arranged at a distance from the mesh panel (231); A back plate (234) is arranged at a distance from the metal sheet (233), wherein the back plate (234) and the metal sheet (233) form a flow channel.

5. The process for processing antibacterial printed decorative paper according to claim 4, characterized in that: The back of the metal sheet (233) is provided with a composite flower piece (2331) located in the flow channel arrangement and composed of four arc-shaped metal plates; The metal sheet (233) is provided with a spring plate (2333) mounted by symmetrically arranged U-shaped clamps (2332), wherein a first end of the spring plate (2333) extends into the composite flower piece (2331) and a second end is arranged adjacent to the mesh panel (231).

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