Antibacterial ABS material composite molding mirror cabinet and production process thereof

Abstract

This invention discloses an antibacterial ABS composite molded mirror cabinet and its manufacturing process, comprising a main cabinet, side cabinets, and a splicing cabinet. Fixing holes are provided on the inner sides of the main cabinet, side cabinets, and splicing cabinets. The front ends of the main cabinet and splicing cabinets are hinged to provide a main mirror door structure, and the front ends of the side cabinets are hinged to provide a folding mirror door structure. The antibacterial ABS composite molded mirror cabinet and its manufacturing process utilize ABS substrate combined with a specific UV-resistant agent and chemically bonded silver ion antibacterial agent to achieve long-lasting anti-yellowing and durable antibacterial properties, solving the problem of mold growth in bathrooms. The cabinet body adopts an external splicing and internal one-piece molding design, balancing dimensional flexibility and leak-proof performance, and is enhanced with a 3D mirror door for a better user experience. Through multi-step process optimization, stable product quality and high production efficiency are ensured. Compared to wooden and ordinary plastic bathroom cabinets, it combines environmental friendliness and safety, superior mechanical properties, and no usage limitations, effectively solving the technical pain points of existing products.

Description

Technical Field

[0001] This invention relates to the field of bathroom furniture technology, and in particular to an antibacterial ABS composite molded mirror cabinet and its manufacturing process. Background Technology

[0002] As a humid and high-temperature environment in the home, the bathroom places stringent requirements on the material performance and structural design of bathroom cabinets. Traditional bathroom cabinets are mostly made of wood. However, wood is extremely prone to the growth of bacteria and mold in humid environments, affecting hygiene. At the same time, the production of wooden bathroom cabinets consumes a large amount of wood, and the sawdust, dust, and glue used in the processing not only pollute the environment but also pose potential health hazards to production workers and consumers.

[0003] To address the shortcomings of wooden bathroom vanities, plastic vanities have gradually emerged in the market, but they generally use common plastics such as PVC and PP. PVC may contain residual vinyl chloride monomer, posing health risks, and is prone to deformation with prolonged contact with hot water. PP material experiences a significant decrease in toughness at extremely low temperatures, limiting its regional applicability and lifespan. Furthermore, existing plastic bathroom vanities still cannot effectively solve the problem of mold growth in high-temperature and high-humidity environments, and most are one-piece injection-molded structures. To meet the diverse size requirements of different consumer groups, individual molds are needed, resulting in poor product consistency and significant inventory backlog. If a design using spliced ​​plastic sheets is used, leaks are prone to occur at the joints. Therefore, the market currently lacks plastic bathroom vanities that combine dimensional flexibility with leak-proof performance. To address this, we propose an antibacterial ABS composite molded mirror cabinet and its manufacturing process. Summary of the Invention

[0004] The main objective of this invention is to provide an antibacterial ABS composite molded mirror cabinet and its manufacturing process, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An antibacterial ABS composite molded mirror cabinet includes a main cabinet, side cabinets, a splicing cabinet, and a side seal for the main cabinet. Fixing holes are provided on the inner sides of the main cabinet, side cabinets, and splicing cabinet. The front ends of the main cabinet and splicing cabinet are hinged to provide main mirror doors, and the front ends of the side cabinets are hinged to provide folding mirror doors. The folding mirror door structure includes a first folding mirror door hinged to the side cabinet, a second folding mirror door movably connected to the first folding mirror door via a damping pivot, a first mirror groove on both the first and second folding mirror doors, and first pull grooves at the upper and lower ends of both the first and second folding mirror doors.

[0007] Furthermore, the main mirror door structure includes a mirror door connected to the main cabinet or the modular cabinet via hinges, a second mirror groove located on the front of the mirror door, a hanging rack and a storage box installed on the back of the mirror door, and a second pull groove located at the top and bottom of the mirror door.

[0008] Furthermore, both the No. 1 and No. 2 mirror slots are embedded and fixed with flat glass mirrors using adhesive; the main cabinet, side cabinet, splicing cabinet, folding mirror door structure, and main mirror door structure are all designed as a single injection molding unit; the main cabinet, side cabinet, and splicing cabinet are fixedly connected by snap-fit ​​after being combined.

[0009] Furthermore, a partition is fixedly installed inside the main cabinet, the partition is provided with a hair dryer slot, and a wiring post for organizing the wiring is fixedly installed on the partition; a socket box is fixedly installed on the inner side of the main cabinet; the side seal of the main cabinet is used to seal the docking ports on both sides of the main cabinet.

[0010] Furthermore, each side cabinet has several sets of slots on both sides inside, and each side cabinet is equipped with several storage boards that can be inserted into the slots.

[0011] Furthermore, the main cabinet side seal is installed on the side of the main cabinet and the splicing cabinet to decorate the docking side interface and make it more aesthetically pleasing.

[0012] A manufacturing process for an antibacterial ABS composite molded mirror cabinet, the process flow of which is as follows:

[0013] S1. Raw material granulation: The UV-resistant agent, antibacterial agent, color powder and ABS particles are dried at 75-85℃ for 1.5-2 hours, and after natural cooling, they are put into a mixing tank and mixed for 1-2 hours. The mixture is then sent to a twin-screw extruder for extrusion and quickly shaped by a cooling device to obtain antibacterial ABS particles.

[0014] S2. Pretreatment (drying): The antibacterial ABS particles are first dried in the first dryer at 80-90℃ for 1-2 hours, and then drawn into the second dryer under negative pressure and dried again at 80-90℃ for 1-2 hours, controlling the particle moisture content to ≤0.1%;

[0015] S3. Hot Melt (Melting): The pretreated antibacterial ABS particles are sucked into the melting machine under negative pressure and pass through the feeding section, melting section, metering section, and nozzle section in sequence. The parameters of each section are as follows: feeding section heating temperature 175-185℃, back pressure 5-8Pa; melting section heating temperature 200-220℃; metering section heating temperature 200-220℃; nozzle section heating temperature 230-240℃.

[0016] S4. Injection Molding: The molten plastic is injected into the injection mold through an open nozzle with an inner diameter of 30-40mm. A four-stage injection molding process is adopted: the first stage has an injection speed of 20-25mm / s and a pressure of 130-140P; the second and third stages have an injection speed of 45-55mm / s and a pressure of 130-140P; and the fourth stage has an injection speed of 55-65mm / s and a pressure of 130-140P.

[0017] S5. Cooling and solidification: Cold water is introduced into the hollow wall of the injection mold for heat exchange. The cooling time is controlled at 40-100 seconds according to the product size to allow the product to cool and solidify.

[0018] S6. Demolding: After the mold is opened, the product is ejected by the ejection mechanism and picked up by the robotic arm suction cup and placed on the conveyor belt;

[0019] S7. Assembly: Assemble and fix the various structural units using snap-fit ​​methods according to requirements to complete the assembly of the bathroom mirror cabinet.

[0020] Furthermore, the extruded product from the twin-screw extruder in S1 is rapidly shaped by a cooling device. The air-cutting drying section is purged with high-pressure cold air at a pressure of 0.3-0.5 MPa for 30-50 seconds to remove surface moisture from the material strips. The strips are then fed into a pelletizer for pelletizing, with a particle size of 2-3 mm. Through the above cooling and shaping process, the dispersion uniformity of the UV-resistant agent, antibacterial agent, and ABS matrix in the antibacterial ABS particles is ensured to be ≥98%, the particle size deviation is ≤±0.2 mm, and there is no adhesion on the particle surface or clumping inside. The standard deviation of the distribution of Ag⁺ in the particles is ≤0.05%.

[0021] Furthermore, the temperature gradient of each section of the S3 melt glue machine is set in a step-like increasing manner. The temperature increase from the feeding section to the melting section is 20-35℃, the temperature from the melting section to the metering section remains consistent, and the temperature increase from the metering section to the nozzle section is 10-40℃. This achieves gradual plasticization of the raw materials, preheating of the feeding section to prevent screw jamming, and fine adjustment of melt viscosity in the metering section to ensure fluidity.

[0022] Furthermore, the speed gradient of the four-stage injection molding process in S4 is precisely matched with the cavity filling stage of the injection mold. The first stage corresponds to the gate filling stage of the mold cavity, using a low speed of 20-25 mm / s and an injection pressure of 130-135 MPa to fill the mold and avoid jetting marks from the melt. The second and third stages correspond to the main body filling stage of the mold cavity. For large-volume structural parts such as the main cabinet 1 and side cabinet 2 of the mirror cabinet, the filling is carried out at a medium speed of 45-55 mm / s and an injection pressure of 135-140 MPa to ensure... The fourth stage corresponds to the corner filling stage of the mold cavity. For small and complex parts such as the No. 1 groove 55, the No. 2 groove 65, and the snap-fit ​​structure, the filling is completed at a high speed of 55-65mm / s and an injection pressure of 130-135MPa. Through the coordinated control of the above speed gradient and pressure, the surface roughness Ra of the injection molded mirror cabinet product is Ra≤0.8μm, the tensile strength retention rate of the weld line is ≥95%, the overall dimensional tolerance of the product is ≤±0.1mm, and there are no warping, silver streaks, or shrinkage defects.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] From the perspective of raw material production process, this invention uses ABS base material compounded with a specific UV-resistant agent and a silver ion antibacterial agent. The UV-resistant agent compound system can achieve the dual functions of ultraviolet absorption and free radical scavenging, effectively improving the product's anti-yellowing ability and service life. The silver ion antibacterial agent exists stably through chemical bonding and can release Ag⁺ for a long time, which can persistently solve the problem of mold and mildew growth in the bathroom environment and ensure hygiene.

[0025] In terms of structural design, the cabinet adopts an external splicing and internal one-piece molding method, with the splicing points snapped together for fixation. This not only flexibly meets different size requirements and reduces mold opening costs and inventory backlog, but also avoids the risk of water leakage at the splicing points. At the same time, the splicing design facilitates transportation and storage, and the combination with the 3D mirror door design further enhances the user experience, successfully solving the core technical pain points of existing splicing plastic bathroom cabinets. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an antibacterial ABS composite molded mirror cabinet and its manufacturing process according to the present invention;

[0027] Figure 2 This is an unfolded diagram of the folding mirror door structure of an antibacterial ABS composite molded mirror cabinet and its manufacturing process according to the present invention.

[0028] Figure 3 This is an unfolded view of the main mirror door structure of an antibacterial ABS composite molded mirror cabinet and its manufacturing process according to the present invention.

[0029] Figure 4This is a splicing diagram of the main cabinet and side cabinet of an antibacterial ABS composite molded mirror cabinet and its manufacturing process according to the present invention.

[0030] Figure 5 This is a display diagram of the main cabinet, splicing cabinet and side cabinet of an antibacterial ABS material composite molded mirror cabinet and its production process according to the present invention;

[0031] Figure 6 This is a disassembled view of the main cabinet, the assembled cabinet, and the side cabinet of the antibacterial ABS composite molded mirror cabinet and its manufacturing process according to the present invention.

[0032] Figure 7 This is a process flow diagram of an antibacterial ABS composite molded mirror cabinet and its manufacturing process according to the present invention.

[0033] In the diagram: 1. Main cabinet; 11. Shelf; 12. Hair dryer slot; 13. Cable tie; 14. Socket box; 2. Side cabinet; 21. Slot; 22. Shelf; 3. Fixing hole; 4. Connecting cabinet; 5. Folding mirror door structure; 51. Folding mirror door No. 1; 52. Damping hinge; 53. Folding mirror door No. 2; 54. Mirror slot No. 1; 55. Pull-out slot No. 1; 6. Main mirror door structure; 61. Mirror door; 62. Mirror slot No. 2; 63. Hanging rack; 64. Storage box; 65. Pull-out slot No. 2; 7. Main cabinet side panel. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Example 1:

[0036] Please see Figure 1-6 This invention provides an antibacterial ABS composite molded mirror cabinet, including a main cabinet 1, a side cabinet 2, a splicing cabinet 4, and a main cabinet side seal 7. The main cabinet 1, the side cabinet 2, and the splicing cabinet 4 are all provided with fixing holes 3 on their inner sides. The front ends of the main cabinet 1 and the splicing cabinet 4 are movably provided with a main mirror door structure 6 via hinges. The front end of the side cabinet 2 is movably provided with a folding mirror door structure 5 via hinges. The folding mirror door structure 5 also includes a first folding mirror door 51 mounted on the side cabinet 2 via hinges, a second folding mirror door 53 movably mounted on the first folding mirror door 51 via a damping pivot 52, a first mirror groove 54 provided on the first folding mirror door 51 and the second folding mirror door 53, and a first pull groove 55 provided at the upper and lower ends of the first folding mirror door 51 and the second folding mirror door 53.

[0037] Specifically, during assembly, appropriate component combinations are selected based on the length of the reserved wall space. If the reserved space is small, only the main cabinet 1 is installed, and the side seals 7 are glued to both sides of the main cabinet 1 after installation. If the reserved space is large, side cabinets 2 can be spliced ​​to one or both sides of the main cabinet 1. Several splicing cabinets 4 can be added between the main cabinet 1 and the side cabinets 2 according to the length requirements. During splicing, the cabinets are fixed by the cooperation of the snap-fit ​​protrusions and snap-fit ​​grooves. After the splicing is completed, the entire mirror cabinet is fixed to the wall by passing expansion screws through the fixing holes 3 of each cabinet. The assembly is convenient and firm, and at the same time, it avoids water leakage at the splicing points. The first folding mirror door 51 can be opened to a 90-degree angle relative to the side cabinet 2 by means of hinges. The damping pivot 52 can drive the second folding mirror door 53 to fold at a 45-degree angle relative to the first folding mirror door 51. The folding mirror door structures 5 on both sides of the mirror cabinet adopt the same setting. When the user stands directly in front of the mirror cabinet, they can view their face through the mirror on the main mirror door structure 6, and at the same time, they can clearly see the reflections on both sides and behind their face through the mirrors on the second folding mirror door 53 after the sides are folded up, achieving a "3D" all-round display, which facilitates operations such as makeup and hair styling, and enhances the user experience.

[0038] Please see Figure 3 As shown, the main mirror door structure 6 also includes a mirror door 61 connected to the main cabinet 1 or the splicing cabinet 4 by a hinge, a second mirror groove 62 set in front of the mirror door 61, a hanging bracket 63 installed on the back of the mirror door 61, a storage box 64 installed on the back of the mirror door 61, and a second pull groove 65 set at the top and bottom of the mirror door 61.

[0039] Specifically, the main mirror door structure 6 is used for the installation and use of both the main cabinet 1 and the splicing cabinet 4.

[0040] Please see Figure 2 As shown, flat glass mirrors are embedded and fixed in mirror slot 54 and mirror slot 62 by fixing glue. The main cabinet 1, side cabinet 2, splicing cabinet 4, folding mirror door structure 5 and main mirror door structure 6 are all integral injection molded designs. The main cabinet 1, side cabinet 2 and splicing cabinet 4 are fixed together by snap-fit.

[0041] Specifically, after the main cabinet 1 and side cabinet 2 are snapped together, they need to be fixed to the wall with expansion screws through the fixing holes 3 to make them spliced ​​together. Similarly, if a splicing cabinet 4 is to be added, it also needs to be fixed to the wall with expansion screws through the fixing holes 3. The main cabinet 1, side cabinet 2 and splicing cabinet 4 can be installed in appropriate lengths according to the reserved installation position. For example, when only the main cabinet 1 is installed, its length is the shortest. After installation, the main cabinet side seals 7 can be installed on both sides. If it is necessary to add another side cabinet 2 on one side, it can be spliced ​​on one side. The number of splicing cabinets 4 can be added between the side cabinet 2 and the main cabinet 1 according to the user's length requirements. Similarly, a side cabinet 2 can also be added on the other side of the main cabinet 1 according to the length requirements. Splicing cabinets 4 can also be spliced ​​between the side cabinet 2 and the main cabinet 1. The main cabinet side seal 7 serves as a decorative splicing between the main cabinet 1 and the splicing cabinet 4.

[0042] Please see Figure 5 As shown, a partition 11 is fixedly installed in the main cabinet 1. A hair dryer slot 12 is provided on the partition 11. A wire connection post 13 is fixedly installed on the partition 11. A socket box 14 is fixedly installed on the inner side of the main cabinet 1. The main cabinet side seal 7 is used to seal the interfaces on both sides of the main cabinet 1.

[0043] Specifically, the main cabinet 1 has two partitions 11 fixed inside by clips. A hair dryer slot 12 is provided on the lower partition 11, its size adapted to a standard hair dryer. A cylindrical cord holder 13 is fixed to one side of the hair dryer slot 12 for storing the hair dryer power cord. A socket box 14 is fixed to the inner side wall of the main cabinet 1 by bolts. The socket box 14 contains a waterproof charging socket and is compatible with hair dryer plugs for connection to mains power. The side cabinets 2 have several sets of slots 21 pre-set on both sides. Each side cabinet 2 is equipped with several ABS material shelves 22, their size adapted to the interior of the side cabinet. The shelves 22 can be inserted into slots 21 of any height, allowing for flexible adjustment of the internal storage space to accommodate bathroom supplies of different heights.

[0044] Please see Figure 1-5 As shown, slots 21 are provided on both sides of the side cabinet 2. There are several sets of slots 21, and each side cabinet 2 is equipped with several shelves 22.

[0045] Specifically, the side cabinet 2, folding mirror door structure 5, main mirror door structure 6, and splicing cabinet 4 are all universally compatible for left and right installation, eliminating the need to differentiate between left and right fit, thus reducing mold costs and inventory pressure. The main cabinet side seal 7 is made of the same antibacterial ABS material as the main cabinet 1, and its dimensions are compatible with the side interfaces of the main cabinet 1 and splicing cabinet 4. When the side of the main cabinet 1 or splicing cabinet 4 does not require splicing of other components, the main cabinet side seal 7 is bonded and fixed to the interface with plastic glue, achieving encapsulation and decoration, making the overall edge curvature of the mirror cabinet natural and beautiful, while also serving as a dustproof and waterproof function.

[0046] The ABS composite molded mirror cabinet in this embodiment has a flexible overall structure that can be spliced ​​together to adapt to different sizes of installation space. The universal component design reduces production costs. The folding mirror door structure enables "3D" mirror display. The storage structure on the back of the main mirror door and the adjustable storage space of the side cabinet enhance the practicality and convenience of the product.

[0047] Example 2:

[0048] Please see Figure 7 This invention provides a manufacturing process for an antibacterial ABS composite molded mirror cabinet, the process flow of which is as follows:

[0049] S1. Raw Material Granulation: Each raw material is dried at 82℃ for 1.7 hours to remove moisture and prevent air bubbles from forming during processing. After cooling, they are mixed and stirred for 1.5 hours to ensure uniform composition. The mixture is then extruded through a twin-screw extruder and rapidly shaped to obtain antibacterial ABS particles. This step improves the uniformity of raw material mixing and ensures consistent performance across all parts of the product. The UV-resistant agent consists of a UV absorber (UVA) and a hindered amine light stabilizer (HALS) in a 1:2 ratio. The UV absorber (chemical composition: 2-(2′-hydroxy-3′,5′-di-tert-pentylphenyl)benzotriazole UV absorber, whose main characteristic in ABS is the absorption and conversion of UV rays, providing initial UV shielding for ABS) and the hindered amine light stabilizer (chemical composition: N-methylated polymeric high molecular weight hindered amine light stabilizer, whose main characteristic in ABS is the capture and regeneration of UV rays, with a cycle stability efficiency ≥95%, achieving long-term stabilization, and a free radical scavenging rate ≥98%, is the core of ABS' anti-aging effect, significantly inhibiting UV / UV radiation in ABS. Under thermo-oxidative aging and accelerated aging test conditions, the yellowing index ΔYI ≤ 1.5. It is a high molecular weight polymeric, N-methylated structure with excellent compatibility with ABS. The migration and precipitation rate is ≤ 0.1%. It is long-lasting, highly efficient and stable. After 1000 hours of accelerated UV aging, the tensile strength retention rate of ABS is ≥ 90%, and the impact strength retention rate is ≥ 85%, effectively inhibiting performance decline. In addition, the antibacterial agent has the following chemical composition: borosilicate glass + Ag⁺ (chemically bonded, using silver oxide (Ag₂O) as the antibacterial source, which is chemically integrated into a compositionally controllable borosilicate glass (SiO₂-B₂O₃-Na₂O-Ag₂O system) network). The silver element content accounts for 1%-2% of the antibacterial agent. Function: The silver ion antibacterial agent ensures the stability of silver ions at the high temperatures of ABS processing and slowly and persistently releases Ag⁺ throughout the product's service life, thus achieving long-lasting antibacterial effects. The precise ratio of UV absorber to antibacterial agent is crucial to the product's functionality: the UV absorber uses a 1:2 ratio of UVA to hindered amine light stabilizer (HALS), where UVA is responsible for initial absorption and conversion of ultraviolet light, while HALS, as the core component, captures ultraviolet light, scavenges free radicals, and effectively inhibits yellowing and performance degradation. The antibacterial agent is chemically bonded to borosilicate glass and Ag⁺ (using Ag₂O as the antibacterial source, with silver accounting for 1%-2%), maintaining stability during high-temperature processing and slowly releasing Ag⁺ throughout its service life to achieve long-lasting antibacterial effects.

[0050] S2, Secondary Drying: The antibacterial ABS particles obtained in S1 are sent into a drying equipment for two drying processes. The drying temperature is controlled at 85℃ each time, and the drying time is 1.5 hours each time. The antibacterial ABS particles are continuously transported by a negative pressure suction method. After drying, the particle moisture content is tested to ensure that the particle moisture content is ≤0.1%. This avoids defects such as silver streaks and bubbles caused by moisture vaporization during subsequent high-temperature processing from the source, thus ensuring the product molding quality.

[0051] S3. Segmented Hot Melting: The sol-gel machine is divided into a feeding section, a melting section, a metering section, and a nozzle section. The temperature and back pressure of each section are precisely controlled. The temperature of the feeding section is controlled at 160℃ to preheat the raw material and prevent the screw from jamming. The melting section ensures that the material is fully and uniformly plasticized, and its temperature is controlled at 220℃. The metering section finely adjusts the melt viscosity, and its temperature is controlled at 160℃ to ensure fluidity. The nozzle section prevents the melt from cooling, solidifying, and clogging, and provides a stable melt for subsequent injection molding. Its temperature is controlled at 200℃.

[0052] S4, Four-stage Injection Molding: Employing a "slow-fast" four-stage injection molding process, high-quality product molding is achieved through speed gradient control: The first stage is slow injection (20-25mm / s) to ensure a smooth product surface without water streaks; the second and third stages are fast injection (45-55mm / s) to improve weld line strength, shorten injection time, and prevent cooling deformation; the fourth stage is high-speed injection (55-65mm / s) to further enhance the product's resistance to deformation, eliminating the need for additional trimming after molding.

[0053] S5. Cooling, Curing, and Demolding: Cold water is circulated through the hollow wall of the mold for heat exchange. The cooling time is controlled at 70 seconds according to the product size to ensure the product is fully cured. Demolding is performed using an ejection mechanism in conjunction with a robotic arm suction cup to improve production efficiency and product integrity. In this step, cold water is circulated through the hollow wall of the mold for heat exchange. The cooling time is controlled at 50 seconds according to the product size to ensure the product is fully cured. Demolding is performed using an ejection mechanism in conjunction with a robotic arm suction cup to effectively avoid product damage and further improve production efficiency.

[0054] S6. Assembly: Clean the demolded structural components, including main cabinet 1, side cabinet 2, splicing cabinet 4, main mirror door structure 6, folding mirror door structure 5, and main cabinet side seal 7, removing surface impurities. Then, embed the flat glass mirror into mirror groove 1 54 and mirror groove 2 62 using waterproof fixing glue, and let it cure for 1.5 hours. Next, install the storage box 64, hanging rack 63, socket box 14, and other functional components into their corresponding positions. Finally, according to the preset size combination, splice and fix the main cabinet 1, side cabinet 2, and splicing cabinet 4 using a snap-fit ​​method, and install the main cabinet side seal 7 as needed to complete the assembly of the entire mirror cabinet. The assembly process is convenient, the splicing is firm, and it can realize the rapid assembly of mirror cabinets of different sizes and specifications to meet diverse needs.

[0055] The antibacterial ABS composite molded mirror cabinet prepared in this embodiment is made of antibacterial ABS material. Through the reasonable ratio of antibacterial agents, a long-lasting antibacterial effect can be achieved, effectively inhibiting the growth of common bacteria in the bathroom environment. The addition of anti-UV agents can significantly inhibit yellowing of the product and extend its service life. The precise control of various parameters in the production process ensures excellent product molding quality, high production efficiency, and suitability for large-scale production.

[0056] It should be noted that the antibacterial test results of the antibacterial materials used in the production process of an antibacterial ABS composite molded mirror cabinet are as follows: Tested microorganisms: Aspergillus niger ATCC 9642, Penicillium oxysporum ATCC 11797, Mucor spheroidum ATCC 6205, Trichoderma viride ATCC 9645, and Pleurotus ostreatus ATCC 15233.

[0057] Test conditions: 28 days, 90%RH, 28℃

[0058] Rating and assessment:

[0059]

[0060] Based on the above antibacterial properties, professional testing and verification were conducted. Five test microorganisms, including Aspergillus niger and Penicillium philippinensis, were selected and tested for 28 days at 28℃ and 90%RH. The test sample (bathroom dressing table) showed less than 10% growth traces, and was rated as Grade 1, which meets the requirements for use of antibacterial products. This verifies the application effect of antibacterial materials. The overall process design is scientific and the process control is precise. The detailed control of each step ensures the molding quality and structural stability of the product. The addition and testing of special functional additives ensure the core functions of antibacterial and anti-aging of the product. At the same time, production efficiency and specification adaptability are taken into account, forming a complete and reliable production solution for antibacterial ABS material composite molding mirror cabinets.

[0061] The following is a report on the performance test results of the UV-resistant agent used in the production process of an antibacterial ABS composite molded mirror cabinet:

[0062] Sample name: ABS surface. Conclusion after testing: The product showed no signs of embrittlement, deformation, or discoloration.

[0063] Test results:

[0064]

[0065] According to the above UV resistance performance test report, the ABS sample tested this time underwent a 12-hour UV aging test (UVA-340 lamp tube, 0.76W / m² / nm@340nm irradiation intensity, total test time 12 hours, including 8 hours of light exposure plus 4 hours of condensation cycle). The surface showed no abnormal phenomena such as embrittlement, deformation, or discoloration, and the color difference index showed no obvious abnormal fluctuations. The sample showed good UV aging resistance under the test conditions.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A mirror cabinet made of antibacterial ABS material composite molding, characterized in that: The main cabinet (1), side cabinet (2), splicing cabinet (4) and main cabinet side seal (7) are provided. The inner sides of the main cabinet (1), side cabinet (2) and splicing cabinet (4) are all provided with fixing holes (3). The front ends of the main cabinet (1) and splicing cabinet (4) are provided with a main mirror door structure (6) by hinges. The front ends of the side cabinet (2) are provided with a folding mirror door structure (5) by hinges. The folding mirror door structure (5) includes a first folding mirror door (51) installed on the side cabinet (2) by hinges, a second folding mirror door (53) movably connected to the first folding mirror door (51) by a damping pivot (52), a first mirror groove (54) respectively set on the first folding mirror door (51) and the second folding mirror door (53), and a first pull groove (55) respectively set on the upper and lower ends of the first folding mirror door (51) and the second folding mirror door (53).

2. The antibacterial ABS composite molded mirror cabinet according to claim 1, characterized in that: The main mirror door structure (6) includes a mirror door (61) connected to the main cabinet (1) or the splicing cabinet (4) by hinges, a second mirror groove (62) set on the front of the mirror door (61), a hanging rack (63) and a storage box (64) installed on the back of the mirror door (61), and a second pull groove (65) set on the upper and lower ends of the mirror door (61).

3. The antibacterial ABS composite molded mirror cabinet according to claim 2, characterized in that: The first mirror slot (54) and the second mirror slot (62) are both embedded with flat glass mirrors by fixing glue; the main cabinet (1), the side cabinet (2), the splicing cabinet (4), the folding mirror door structure (5) and the main mirror door structure (6) are all designed as an integral injection molding; the main cabinet (1), the side cabinet (2) and the splicing cabinet (4) are fixedly connected by snap-fit ​​after being combined.

4. The antibacterial ABS composite molded mirror cabinet according to claim 3, characterized in that: The main cabinet (1) is fixedly provided with a partition (11), a hair dryer slot (12) is provided on the partition (11), and a wiring post (13) for organizing the wiring is fixedly provided on the partition (11); a socket box (14) is fixedly provided on the inner side of the main cabinet (1); the main cabinet side seal (7) is used to seal the docking ports on both sides of the main cabinet (1).

5. The antibacterial ABS composite molded mirror cabinet according to claim 4, characterized in that: The side cabinet (2) has several sets of slots (21) on both sides inside, and each side cabinet (2) is equipped with several shelves (22) that can be inserted into the slots (21).

6. The antibacterial ABS composite molded mirror cabinet according to claim 1, characterized in that: The main cabinet side seal (7) is installed on the side of the main cabinet (1) and the splicing cabinet (4) to decorate the side interface and make it more aesthetically pleasing.

7. A manufacturing process for an antibacterial ABS composite molded mirror cabinet, the process flow of which is as follows: S1. Raw Material Granulation: The UV stabilizer, antibacterial agent, colorant, and ABS particles are dried at 75-85℃ for 1.5-2 hours, naturally cooled, and then mixed in a stirring tank for 1-2 hours. The mixture is then extruded using a twin-screw extruder and rapidly shaped using a cooling device to obtain antibacterial ABS particles. The UV stabilizer consists of a UV absorber (UVA) and a hindered amine light stabilizer (HALS) in a 1:2 ratio. The UV absorber (chemically 2-(2′-hydroxy-3′,5′-di-tert-amylphenyl)benzotriazole UV absorber, whose main characteristic in ABS is the absorption and conversion of ultraviolet light, providing initial UV shielding for ABS) is... Hindered amine light stabilizers (chemically composed of N-methylated polymerized high molecular weight hindered amine light stabilizers) are characterized by capturing and regenerating ultraviolet light in ABS, achieving a cycle stabilization efficiency of ≥95% for long-term stabilization, and a free radical scavenging rate of ≥98%. They are the core of ABS' anti-aging effect, significantly inhibiting UV radiation in ABS. Under accelerated aging conditions, the yellowing index ΔYI ≤ 1.

5. It exhibits high molecular weight polymeric structure and N-methylated structure, demonstrating excellent compatibility with ABS. The migration and precipitation rate is ≤ 0.1%, ensuring long-lasting, high-efficiency, and stable performance. After 1000 hours of accelerated UV aging, the tensile strength retention rate of ABS is ≥ 90%, and the impact strength retention rate is ≥ 85%, effectively inhibiting performance degradation. Additionally, the antibacterial agent consists of borosilicate glass + Ag⁺ (chemically bonded, using silver oxide (Ag₂O) as the antibacterial source, chemically integrated into a controllable borosilicate glass (SiO₂-B₂O₃-Na₂O-Ag₂O system) network), with silver content ranging from 1% to 2%. Its function is to ensure the stability of silver ions at high temperatures during ABS processing and to slowly and persistently release Ag⁺ throughout the product's service life, thus achieving long-lasting antibacterial effects. S2. Pretreatment (drying): The antibacterial ABS particles are first dried in the first dryer at 80-90℃ for 1-2 hours, and then drawn into the second dryer under negative pressure and dried again at 80-90℃ for 1-2 hours, controlling the particle moisture content to ≤0.1%; S3. Hot Melt (Melting): The pretreated antibacterial ABS particles are sucked into the melting machine under negative pressure and pass through the feeding section, melting section, metering section, and nozzle section in sequence. The parameters of each section are as follows: feeding section heating temperature 175-185℃, back pressure 5-8Pa; melting section heating temperature 200-220℃; metering section heating temperature 200-220℃; nozzle section heating temperature 230-240℃. S4. Injection Molding: The molten plastic is injected into the injection mold through an open nozzle with an inner diameter of 30-40mm. A four-stage injection molding process is adopted: the first stage has an injection speed of 20-25mm / s and a pressure of 130-140P; the second and third stages have an injection speed of 45-55mm / s and a pressure of 130-140P; and the fourth stage has an injection speed of 55-65mm / s and a pressure of 130-140P. S5. Cooling and solidification: Cold water is introduced into the hollow wall of the injection mold for heat exchange. The cooling time is controlled at 40-100 seconds according to the product size to allow the product to cool and solidify. S6. Demolding: After the mold is opened, the product is ejected by the ejection mechanism and picked up by the robotic arm suction cup and placed on the conveyor belt; S7. Assembly: Assemble and fix the various structural units according to the requirements by snap-fitting to complete the assembly of the bathroom mirror cabinet.

8. The manufacturing process of an antibacterial ABS composite molded mirror cabinet according to claim 7, characterized in that, The extruded product from the twin-screw extruder in S1 is rapidly shaped by a cooling device. The air-cutting drying section uses high-pressure cold air purging at a pressure of 0.3-0.5 MPa for 30-50 seconds to remove surface moisture from the material strips. The strips are then fed into a pelletizer for pelletizing, with a particle size of 2-3 mm. Through the above cooling and shaping process, the dispersion uniformity of the UV-resistant agent, antibacterial agent, and ABS matrix in the antibacterial ABS particles is ensured to be ≥98%, the particle size deviation is ≤±0.2 mm, and there is no adhesion on the particle surface or clumping inside. The standard deviation of the distribution of Ag⁺ in the particles is ≤0.05%.

9. The manufacturing process of an antibacterial ABS composite molded mirror cabinet according to claim 7, characterized in that, The temperature gradient of each section of the S3 melt glue machine is set in a step-like manner. The temperature increase from the feeding section to the melting section is 20-35℃, the temperature from the melting section to the metering section remains the same, and the temperature increase from the metering section to the nozzle section is 10-40℃. This achieves gradual plasticization of the raw materials, preheating of the feeding section to prevent screw jamming, and fine adjustment of melt viscosity in the metering section to ensure fluidity.

10. The manufacturing process of an antibacterial ABS composite molded mirror cabinet according to claim 7, characterized in that, The speed gradient of the four-stage injection molding process in S4 is precisely matched with the cavity filling stage of the injection mold. The first stage corresponds to the gate filling stage of the mold cavity, and the mold is filled at a low speed of 20-25 mm / s and an injection pressure of 130-135 MPa to avoid the melt from producing jet marks. The second and third stages correspond to the main body filling stage of the mold cavity. For large-volume structural parts such as the main cabinet (1) and side cabinet (2) of the mirror cabinet, the mold is filled at a medium speed of 45-55 mm / s and an injection pressure of 135-140 MPa to ensure the melt is filled. Uniform spreading; the fourth stage corresponds to the corner filling stage of the mold cavity. For small and complex parts such as the first groove (55), the second groove (65), and the snap-fit ​​structure, the filling is completed at a high speed of 55-65mm / s and an injection pressure of 130-135MPa. Through the coordinated control of the above speed gradient and pressure, the surface roughness Ra of the injection molded mirror cabinet product is Ra≤0.8μm, the tensile strength retention rate of the weld line is ≥95%, the overall dimensional tolerance of the product is ≤±0.1mm, and there are no warping deformation, silver lines and shrinkage defects.

Images