Manufacturing method of waxed paper box and paper box thereof

Abstract

The invention discloses a manufacturing method of a waxed paper box and a product of the waxed paper box, and aims to improve the waterproofness, the high temperature resistance, the compressive strength and the environmental protection property of the paper box. The method comprises the following steps: pretreating paper, and removing impurities through steam cleaning and drying; wax layer coating: uniformly spraying a mixture of beewax and vegetable wax on the surface of the paper; curing the wax layer, and heating at a specific temperature and time to enhance the adhesive force of the wax layer; forming and pressing: ensuring the structural stability of the paper box through a hydraulic press; and cooling and inspecting to ensure that the paper box meets the requirements of water resistance, pressure resistance, food safety and the like. The paper box has excellent water resistance, high temperature resistance and compression resistance, meets the food-grade safety standard, has degradability and is suitable for various application scenes such as food packaging, agriculture and fishery.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging materials, and in particular to a method for manufacturing a waxed paper box and the paper box thereof. Background Art

[0002] With the continuous improvement of environmental awareness and the increasing demand for sustainable development, the environmental protection and performance requirements of packaging materials have gradually received attention. Paper packaging is widely used in food packaging, agricultural product packaging, logistics packaging and other fields due to its advantages such as biodegradability, lightness and low cost. However, traditional paper boxes have many shortcomings in practical applications, especially in terms of waterproofness, compression resistance, high temperature resistance and wear resistance, which are poor and cannot meet the needs of certain specific industries.

[0003] Most existing paper boxes are made of ordinary paper materials, and the surface coating is mainly synthetic coating or plastic film. Although it can provide moisture-proof effect to a certain extent, there are still the following technical problems: Poor waterproofness: Traditional paper boxes are mostly treated with coatings or plastic coatings on their surfaces, but these treatments cannot effectively prevent water penetration, especially in humid environments (such as agricultural or fishery packaging), where the boxes are prone to damage or the contents may become damp.

[0004] Poor compression resistance: The existing paper boxes have low compression strength and are prone to deformation or cracking during stacking or long-term transportation, resulting in packaging failure.

[0005] Poor high temperature resistance: In high temperature environments, traditional paper boxes are easily affected by heat and become soft and deformed, and cannot meet the use requirements in high temperature environments, especially in food processing and transportation.

[0006] Non-degradable or slow degradation: Although the paper box itself is degradable, its surface coating (such as plastic film or synthetic coating) is often non-degradable, which limits the degradation process of the paper box and increases the environmental burden.

[0007] Lack of versatility: The design and performance of existing paper boxes are relatively simple and cannot meet the diverse packaging needs of industries such as agriculture and fisheries. For example, agricultural product packaging boxes may be exposed to humidity or high temperature during transportation, and ordinary paper boxes cannot effectively resist these environmental factors.

[0008] In order to overcome the above technical problems, many researchers have tried to use different materials and coating technologies to improve the comprehensive performance of paper boxes. Among them, using natural wax materials to treat the surface of paper boxes has become an effective solution. Natural wax (such as beeswax and vegetable wax) has good waterproof, pressure-resistant and environmentally friendly properties, and can form a uniform wax layer through coating technology, effectively improving the performance of paper boxes. In particular, through wax treatment, without using harmful chemical coatings, the paper box can have better moisture isolation, high temperature resistance and wear resistance, while meeting food-grade safety standards.

[0009] In view of this, the inventor specially designed a method for manufacturing a waxed paper box and a paper box thereof, and this case was thus generated. Summary of the invention

[0010] The purpose of the present application is to provide a method for manufacturing a waxed paper box and a paper box thereof, which at least solves the problem that the existing paper boxes have insufficient performance in terms of waterproofness, pressure resistance, high temperature resistance, degradability, etc.

[0011] In order to solve the above technical problems, the present invention provides the following technical solutions: The present application provides a method for manufacturing a wax paper box, comprising the following steps: S10 Paper pretreatment: The paper is cleaned by steam cleaning equipment to remove surface impurities, and the paper is dried by drying equipment to a moisture content of less than 5%; S20 wax coating: heat the mixture of beeswax and vegetable wax to 60°C to 80°C, and evenly apply it on the paper surface using a spraying device, with a coating thickness of 0.1 mm to 0.3 mm; S30 Wax layer curing: The wax-coated paper is heated to 60°C to 70°C by hot air heating equipment, and the curing time is 8 to 12 minutes to ensure that the wax layer is firmly bonded to the paper; S40 Carton Forming and Pressing: The cured paper is molded and pressed, and a hydraulic press is used to apply a pressure of 10-20 MPa to form the shape of the carton, and ensure that the shape and thickness of the carton are uniform; S50 Cooling and testing: Cool the formed carton to room temperature and conduct performance tests such as waterproofness, pressure resistance and high temperature resistance to ensure that the carton meets the design standards.

[0012] In a further embodiment, the weight ratio of the beeswax to the vegetable wax is 1:1 to 1:3.

[0013] In a further embodiment, PLA (polylactic acid) material is added to the mixture of the beeswax and the vegetable wax, and the content of PLA is 5%-20%.

[0014] In a further embodiment, the raw material of the paper in the paper pretreatment step S10 is high-strength fiber paper that has been reinforced, and the fiber paper is a mixed material of polypropylene fiber and wood pulp fiber.

[0015] In a further embodiment, the coating thickness of the wax layer in the S20 wax layer coating step is 0.1 mm to 0.2 mm.

[0016] In a further embodiment, the S20 wax layer coating step is performed by spraying, and the spraying method is electrostatic spraying or pneumatic spraying.

[0017] In a further embodiment, the heating temperature for curing the wax layer is 65°C to 70°C, and the curing duration is 8 to 10 minutes.

[0018] In a further embodiment, a hydraulic press is used in the S40 forming and pressing step, and the applied pressure is 15 MPa to 20 MPa.

[0019] In a further embodiment, the cooling in the S50 cooling and inspection step is performed by air cooling.

[0020] The present application also provides a paper box, comprising a box cover and a box body, wherein the box cover and the box body are manufactured by a waxed paper box manufacturing method. Beneficial Effects

[0021] Compared with the prior art, the present invention has the following beneficial effects: 1. Waterproof: The evenly coated wax layer of beeswax and vegetable wax mixture gives the paper box surface excellent waterproof performance, and it can remain dry and non-penetrating even in a humid environment or in direct contact with water.

[0022] 2. High temperature resistance: By precisely controlling the curing temperature and time of the wax layer, the paper box can still maintain structural stability in a high temperature environment. It is suitable for packaging needs that require higher temperature tolerance, especially in the field of food packaging, where it has safety and stability.

[0023] 3. Compressive strength: The appropriate pressure applied by the hydraulic press during the molding and pressing process enables the paper box to still have excellent compressive resistance when subjected to high loads, meeting the needs of transportation, stacking and other scenarios, and is not easy to deform or break.

[0024] 4. Environmental protection: The present invention adopts natural beeswax, vegetable wax and degradable material PLA, which not only ensures the food grade safety of the paper box, but also realizes the degradable characteristics, meets the current environmental protection and sustainable development requirements, and helps to reduce the use of plastics and non-degradable materials.

[0025] 5. Food safety: Select materials that meet food contact standards to ensure that the carton will not release harmful substances during long-term use, and is suitable for direct packaging of food to protect the health of consumers.

[0026] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] in: Figure 1 A flowchart of the steps of a method for manufacturing a wax paper box of the present invention; Figure 2 It is a plane schematic diagram of a box cover of a paper box of the present invention; Figure 3 The present invention is a schematic plan view of a box body of a paper box.

[0028] Description of the numbers in the figure: 1. Box cover; 2. Box body. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0030] like Figure 1 As shown, the present invention relates to a method for manufacturing a waxed paper box, in particular, through specific process steps and parameter design, to improve the water resistance, compressive strength, and high temperature resistance of the paper box, and ensure that the paper box meets food grade safety standards. The method involves process steps such as pretreatment of paper, coating and curing of the wax layer, molding and pressing of the paper box, and final cooling and performance testing. Each process link will be described in detail below, and the feasibility and effectiveness of the present invention will be verified through multiple examples.

[0031] Example 1: Standard process flow and parameter setting This embodiment describes the basic process of the wax paper box manufacturing method of the present invention, involving the steps of paper pretreatment, wax layer coating, wax layer curing, paper box forming and pressing, cooling and performance testing, and the process parameters are as follows: Paper pre-processing (step S10): Paper material selection: Choose high-strength fiber paper that has been reinforced. The main component of this paper is a mixture of wood pulp fiber and polypropylene fiber. Compared with ordinary paper, high-strength fiber paper has stronger pressure resistance and wear resistance, which helps to improve the overall strength of the waxed paper box.

[0032] Surface cleaning: Use steam cleaning equipment to clean the paper surface to remove impurities, dust and any substances that may affect the adhesion of the wax layer. Steam cleaning equipment can completely remove fine pollutants and grease on the surface of the paper through the action of high-temperature steam.

[0033] Drying treatment: The cleaned paper is dried through drying equipment to a moisture content of less than 5% to avoid the influence of moisture on the wax coating. The dried paper can ensure uniform coating and good adhesion of the wax layer.

[0034] Wax layer coating (step S20): Wax selection and heating: Use a mixture of beeswax and vegetable wax in a ratio of 1:2, and heat to 60°C to 80°C. Within this temperature range, the combination of beeswax and vegetable wax is best without excessive decomposition or loss.

[0035] Coating method: Use spraying equipment to evenly coat the wax layer on the paper surface. Spraying makes the wax layer more evenly distributed and avoids uneven wax layer thickness. The coating thickness of the wax layer is controlled between 0.1 mm and 0.2 mm to ensure sufficient waterproofness and pressure resistance without affecting the flexibility and weight of the paper box.

[0036] Coating process control: During the coating process, electrostatic spraying or pneumatic spraying is used to ensure that the wax liquid can be sprayed evenly and accurately on the paper surface. The electrostatic spraying method enables the wax liquid to better adhere to the paper surface when spraying, reducing waste and improving the coating effect.

[0037] Wax layer solidification (step S30): Heating and curing: The coated paper enters the hot air heating equipment for curing. The hot air temperature is controlled between 60°C and 70°C, and the duration is 8 to 12 minutes to ensure that the wax layer can fully bond with the paper. During the curing process, the adhesion of the wax layer is strengthened, forming a dense and strong waterproof layer.

[0038] Curing effect: The surface of the cured paper is flat and smooth, and the wax layer is firmly bonded to the paper. Through the peeling test, the wax layer is not easy to fall off, showing good durability.

[0039] Carton forming and pressing (step S40): Mould design: A special mould is used to press the carton. The mould design is customized according to the final use and appearance requirements of the carton to ensure that the shape of the carton is accurate and consistent.

[0040] Hydraulic press: Use a hydraulic press to apply 10 to 20 MPa of pressure to the cured paper to ensure that the carton does not deform during the molding process and that the thickness of each part is uniform. Too low pressure may result in unclear carton shape, while too high pressure may cause the carton to break, so the pressure needs to be precisely controlled.

[0041] Forming effect: After pressing, the shape of the paper box is complete and meets the design requirements. The surface is flat, the edges are smooth, and there are no wrinkles or obvious defects.

[0042] Cooling and testing (step S50): Cooling method: The formed carton is quickly cooled to room temperature through air cooling equipment to ensure that the carton does not deform during the cooling process and avoid cracking or bending of the carton due to excessive temperature difference.

[0043] Performance test: After cooling, the carton undergoes a series of performance tests, mainly including waterproofness, compressive strength, high temperature resistance, and food grade safety: Waterproof test: Immerse the paper box in water and test its water resistance within 30 minutes. After testing, the paper box coated with wax layer can effectively prevent water penetration and has good water resistance.

[0044] Compression strength test: By applying vertical pressure to the center of the carton, the maximum pressure it can withstand is tested. The test results show that the cured and pressed carton can withstand at least 10 kg of vertical pressure without deformation.

[0045] High temperature resistance test: The paper box was placed in a high temperature environment of 50°C to 70°C to test its high temperature resistance. The paper box did not deform at all under high temperature, and the wax layer did not fall off or melt.

[0046] Food-grade safety testing: Through the testing of food contact materials, we ensure that the beeswax, vegetable wax and other ingredients used in the paper boxes meet food-grade safety standards and do not release harmful substances.

[0047] Example 2: Comparative experiment of different process parameters In this example, we compared the effects of different raw materials, wax layer thicknesses, and coating methods on the performance of paper boxes.

[0048] Paper material comparison: Experiment 1: using ordinary wood pulp paper and reinforced high-strength fiber paper.

[0049] Experiment 2: Use 100% polypropylene fiber paper.

[0050] The results show that the reinforced high-strength fiber paper is superior to ordinary wood pulp paper in compressive strength and high temperature resistance, and can effectively improve the overall structural strength of the paper box.

[0051] Comparison of wax layer thickness and coating method: Experiment 1: The wax layer thickness is 0.1 mm to 0.2 mm and is sprayed.

[0052] Experiment 2: The wax layer thickness is 0.3 mm and the immersion method is adopted.

[0053] The results show that although paper boxes with thicker wax layers have advantages in terms of waterproofness, their compressive resistance is slightly inferior to paper boxes with thinner coatings. Therefore, it is recommended to use a wax layer thickness of 0.1 mm to 0.2 mm and use a spraying method.

[0054] The effect of adding PLA material: Experiment 1: A mixture of beeswax and vegetable wax with 5% PLA added.

[0055] Experiment 2: A mixture of beeswax and vegetable wax with 10% PLA added.

[0056] Results: Adding 5% PLA can improve the compressive strength and high temperature resistance of the paper box. Although adding more than 10% PLA can improve the rigidity of the paper box, it will affect the adhesion and overall flexibility of the wax layer. Therefore, the optimal PLA content is 5%.

[0057] Example 3: Environmental protection and degradation test In order to verify the environmental friendliness of the present invention, this embodiment conducted a degradation test on the waxed paper box and compared it with the existing plastic packaging materials.

[0058] Degradation test: The degradation time of waxed paper boxes in soil is 3 months. They are completely degraded without releasing any harmful substances.

[0059] Compared with existing plastic packaging materials, plastic packaging materials take longer to start to degrade and release harmful substances.

[0060] Food safety testing: By simulating the food contact environment, waxed paper boxes can effectively prevent food from external contamination, do not release any harmful substances, and meet the safety standards for food contact materials.

[0061] Example 4: Long-term durability test under high temperature conditions This embodiment verifies the stability of the paper box under extreme environments by conducting a long-term durability test under high temperature conditions.

[0062] Example 4: Long-term durability test under high temperature conditions This embodiment verifies the stability and long-term performance of the wax paper box in extreme environments by conducting a long-term durability test under high temperature conditions.

[0063] Experimental setup: Two different cartons were selected for testing: one group used the waxed cartons of the present invention and the other group used conventional cartons.

[0064] In a high temperature environment, waxed cartons and traditional cartons were placed at 70°C and 80°C for 72 hours respectively to test the stability and deformation of the cartons.

[0065] Result analysis: Waxed paper box: After 72 hours of high temperature test, the waxed paper box showed good high temperature resistance, no obvious deformation in appearance, no wax layer falling off, and the shape and structure of the paper box were still intact. The paper box maintained strong waterproof and moisture resistance, and no moisture penetrated the surface.

[0066] Traditional paper boxes: Traditional paper boxes will slightly deform under high temperature conditions, with the surface turning yellow and wrinkled, and unable to maintain their original shape, especially at the edges. Due to the lack of a waterproof coating, water seeps through the surface of the paper box under high temperatures, and the moisture-proof effect is poor.

[0067] in conclusion: The experiment shows that the waxed paper box of the present invention has better long-term durability and stability in high temperature environments, and is particularly suitable for food packaging that requires long-term storage and handling. Compared with traditional paper boxes, waxed paper boxes can maintain structural integrity in more harsh environments and show stronger high temperature resistance and water resistance.

[0068] Example 5: Performance in practical application In the actual production and application process of this embodiment, the performance of the waxed paper box is further verified. A food packaging company is selected to use the waxed paper box for packaging in actual application and compare it with the traditional paper box.

[0069] Test conditions: Packaged foods include dried fruits, ready-to-eat foods, and other products that require high water resistance and temperature resistance.

[0070] The waxed paper box of the present invention and the traditional paper box are used for packaging, and their performances in different environments such as transportation and storage are tested.

[0071] Result analysis: Waxed paper boxes: During transportation, waxed paper boxes exhibit excellent water resistance and compressive strength. Even after long-term storage and high humidity environments, the paper boxes still maintain their shape and function, and there will be no problems with the paper boxes being deformed or waterproofing failing.

[0072] Traditional paper boxes: Traditional paper boxes are prone to deformation and damage in high humidity environments due to the lack of a waterproof layer. Especially when packaging moist food, water seepage is likely to occur, affecting food quality.

[0073] in conclusion: Through actual application tests, it can be confirmed that waxed cartons can effectively improve the stability of packaging and food safety during food packaging. Compared with traditional cartons, waxed cartons can provide stronger protection to ensure that food is not affected by the external environment during transportation and storage.

[0074] As shown in the following table, the performance test and experimental data of waxed paper boxes are shown.

[0075]

[0076] The following table and the following table are comparative experiments with the prior art.

[0077]

[0078] Summary Through the analysis of the above multiple embodiments and test data, we can confirm that the wax paper box manufacturing method of the present invention has significant advantages, especially in the following aspects: Waterproof: Waxed paper boxes can effectively prevent moisture penetration, ensuring the dryness and stability of the packaged contents, especially in high humidity environments.

[0079] High temperature resistance: Waxed paper boxes can still maintain a good shape in high temperature environments without melting or deformation. They are suitable for applications that require high temperature environments during food processing and storage.

[0080] Compression resistance: The paper box pressed by the hydraulic press has strong compression resistance and will not be deformed due to external pressure during transportation and stacking.

[0081] Environmental protection: The materials used in wax paper boxes (such as beeswax, vegetable wax and PLA) are all biodegradable, non-toxic and meet the standards of food contact materials, meeting environmental protection and food safety requirements.

[0082] Compared with traditional paper boxes, the waxed paper box of the present invention has significantly improved multiple performances, especially in terms of water resistance, high temperature resistance and pressure resistance. By using a mixture of beeswax and vegetable wax and coating it on high-strength fiber paper, the overall performance of the paper box can be effectively improved while ensuring its environmental protection and safety. Therefore, the present invention not only improves the performance of the paper box, but also provides a more environmentally friendly, safe and durable packaging material for the food packaging industry.

[0083] In addition, the process of the present invention is simple and easy to operate, can be widely used in the production of different types of paper boxes, and has high industrial application value.

[0084] like Figure 2 and Figure 3As shown, based on the above embodiment, the embodiment of the present application also proposes another paper box, including a box body 1 and a box cover 2, which is manufactured by a wax treatment process. The paper box produces a paper box product with excellent waterproofness, high temperature resistance, compressive strength and environmental protection performance. The superior performance and use effect of the paper box of the present invention in different application scenarios are described in detail below.

[0085] The paper box of the present invention uses high-strength fiber paper that meets food grade standards as the base material, and a wax layer made of a mixture of beeswax and vegetable wax is evenly coated on the surface. The coating process and curing process ensure that the wax layer is firmly combined with the paper. The wax layer provides excellent waterproofness, moisture resistance and high temperature resistance, so that the paper box can maintain a stable structure in various environments. The following are the main performance characteristics of the paper box: Waterproofness: Thanks to the evenly coated wax layer, the paper box of the present invention exhibits good waterproof effect in a humid environment and in an immersion test, thus avoiding the problem of traditional paper boxes becoming soft due to moisture and reducing their strength.

[0086] High temperature resistance: The paper box maintains structural integrity in an environment of 50°C to 80°C without deformation or melting of the wax layer. It is suitable for packaging hot food, microwave heating and other applications, meeting the requirements of food packaging for high temperature resistance.

[0087] Compression resistance: Appropriate pressure is applied during the molding and pressing process of the carton to ensure that it maintains structural stability when subjected to large external forces. Tests show that after applying a pressure of up to 15 kg / cm² in the vertical direction, the carton still does not deform, making it suitable for scenes that require high compressive strength during stacking and transportation.

[0088] Food safety and environmental protection: The materials used meet food grade safety standards and are biodegradable. They can degrade quickly in the natural environment without releasing harmful substances, and will not pollute food or the environment, which has significant environmental advantages.

[0089] Application Examples In order to verify the applicability and effect of the paper box of the present invention, specific application examples are provided below to demonstrate the use effects of the paper box of the present invention in different scenarios.

[0090] Example 1: Food packaging application The paper box of the present invention exhibits excellent moisture-proof effect in the packaging of dry foods such as dried fruits, snacks, and ready-to-eat foods. Through actual tests, after the packaged food is placed in a high humidity environment (85% humidity) for 24 hours, the food in the paper box remains dry and shows no signs of moisture.

[0091] When packaging microwave-heated food, the carton maintains its structural integrity and keeps its shape unchanged in a 70°C environment, avoiding the defect that ordinary carton cannot withstand high temperatures.

[0092] Example 2: Flower planting container The paper box of the present invention has good water resistance after wax treatment and is suitable for use as a planting container for small plants or flowers. In experiments, the paper box filled with soil and water did not seep water or loosen paper within 10 days, and is suitable for short-term plant cultivation or fresh food decoration.

[0093] Due to the waterproof nature of the wax layer, the paper box can maintain its integrity for a period of time even in a hydroponic environment, and can eventually degrade under natural conditions without adversely affecting the environment.

[0094] Example 3: Application in offshore fisheries After wax treatment, the paper box has good water resistance and pressure resistance, and is suitable for auxiliary storage and transportation tools in fisheries. In an experiment simulating high humidity conditions at sea (95% humidity), the paper box remained stable for 24 hours without obvious moisture and deformation, proving that it is suitable for short-term use in high humidity environments.

[0095] As a packaging container for seafood, paper boxes can effectively protect the contents and will not pollute the environment after use, meeting the environmental protection requirements of fishery packaging.

[0096] Example 4: Application in agriculture The paper box can be used to pack and wash vegetables on the farm, and it showed good water resistance in the water flow test. After 10 minutes of water washing, the paper box did not show obvious water seepage and swelling, which is suitable for use in the field picking and preliminary washing process.

[0097] The paper box is biodegradable and can be naturally degraded in farmland without affecting soil quality or risk of secondary pollution. It is suitable for the packaging needs of green agriculture.

[0098] The following is detailed test data on various properties of the paper box of the present invention.

[0099]

[0100] The paper box of the present invention has excellent waterproof, high temperature resistance and pressure resistance through the above manufacturing method, and meets food safety standards and environmental protection requirements. Compared with the prior art, the paper box of the present invention can be widely used in food packaging, agriculture, deep-sea fishing and other fields to meet the use requirements in different environments, and its degradable characteristics are in line with the current environmental protection trend, and has high market value and social benefits.

Claims

1. A method for manufacturing a wax paper box, characterized in that: The following steps are involved: S10 Paper pretreatment: The paper is cleaned by steam cleaning equipment to remove surface impurities, and the paper is dried by drying equipment to a moisture content of less than 5%; S20 wax coating: heat the mixture of beeswax and vegetable wax to 60°C to 80°C, and evenly apply it on the paper surface using a spraying device, with a coating thickness of 0.1 mm to 0.3 mm; S30 Wax layer curing: The wax-coated paper is heated to 60°C to 70°C by hot air heating equipment, and the curing time is 8 to 12 minutes to ensure that the wax layer is firmly bonded to the paper; S40 Carton Forming and Pressing: The cured paper is molded and pressed, and a hydraulic press is used to apply a pressure of 10-20 MPa to form the shape of the carton, and ensure that the shape and thickness of the carton are uniform; S50 Cooling and testing: Cool the formed carton to room temperature and conduct performance tests such as waterproofness, pressure resistance and high temperature resistance to ensure that the carton meets the design standards.

2. The method for manufacturing a waxed paper box according to claim 1, characterized in that: The weight ratio of the beeswax to the vegetable wax is 1:1 to 1:

3.

3. The method for manufacturing a waxed paper box according to claim 2, characterized in that: PLA (polylactic acid) material is added to the mixture of the beeswax and the vegetable wax, and the content of PLA is 5%-20%.

4. The method for manufacturing a waxed paper box according to claim 1, characterized in that: The raw material of the paper in the paper pretreatment step S10 is high-strength fiber paper that has been reinforced, and the fiber paper is a mixed material of polypropylene fiber and wood pulp fiber.

5. The method for manufacturing a waxed paper box according to claim 1, characterized in that: The coating thickness of the wax layer in the S20 wax layer coating step is 0.1 mm to 0.2 mm.

6. The method for manufacturing a waxed paper box according to claim 5, characterized in that: The S20 wax layer coating step adopts a spraying method, and the spraying method is electrostatic spraying or pneumatic spraying.

7. The method for manufacturing a wax paper box according to claim 1, wherein: The heating temperature for curing the wax layer is 65°C to 70°C, and the curing duration is 8 to 10 minutes.

8. The method for manufacturing a wax paper box according to claim 1, characterized in that: The S40 forming and pressing step uses a hydraulic press, and the applied pressure is 15 MPa to 20 MPa.

9. The method for manufacturing a wax paper box according to claim 1, characterized in that: In the cooling and inspection step S50, air cooling is used for cooling.

10. A paper box, comprising a box cover and a box body, characterized in that: The box cover and the box body are manufactured using a wax paper box manufacturing method as described in any one of claims 1 to 9.

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