Manufacturing method of high wear-resistant, anti-skid and protective safety shoes

Abstract

The application relates to the technical field of shoe processing, and discloses a manufacturing method of high-wear-resistance anti-skid protective work safety shoes, which comprises the following steps: S1, selecting a shoe upper material with high strength, high wear resistance and high toughness, wherein the shoe upper material is formed by mixing composite fibers and rubber particles, the composite fibers account for 40-60% of the total weight of the shoe upper material, and the rubber particles account for 20-30% of the total weight of the shoe upper material; and S2, pretreating the shoe upper material, heating the shoe upper material in an environment with a temperature of 120-150 DEG C for 1-2 hours, then cooling to room temperature, and then performing vibration treatment on the shoe upper material through a high-frequency vibration device, wherein the vibration frequency is 30-50 Hz, and the vibration time is 10-20 minutes. By using the shoe upper material mixed by the composite fibers and the rubber particles, the wear resistance of the safety shoes is remarkably improved; meanwhile, the mixed material of the composite fibers and the rubber particles not only has high strength and high toughness, but also can form a firm protective layer on the surface of the shoe upper, so that physical impact and wear from the outside world can be effectively resisted.

Description

Technical Field

[0001] This invention relates to the field of shoe processing technology, specifically a method for manufacturing highly wear-resistant, slip-resistant, protective, and safety shoes. Background Technology

[0002] In the field of safety footwear, with the increasing complexity and danger of industrial environments, higher demands are being placed on the abrasion resistance, slip resistance, and protective performance of safety shoes. While existing safety shoes offer some protection against impacts, punctures, and slippage, they still have many shortcomings in practical applications. For example, traditional safety shoes often use a single material for the upper, resulting in limited abrasion resistance and toughness, making them prone to wear and tear under high-intensity working conditions. Simultaneously, the slip resistance of the soles, due to material and structural limitations, struggles to provide sufficient grip in wet or oily environments, leading to frequent slips and falls.

[0003] Furthermore, existing production processes for safety shoes are relatively traditional, resulting in low production efficiency and poor product quality consistency. For example, the bonding process of the various layers of the sole often leads to delamination or peeling due to insufficient adhesive performance or lax process control, affecting the service life of the safety shoes. In terms of surface treatment, traditional coating technologies cannot effectively improve the abrasion resistance of the upper and sole, further limiting the durability of safety shoes.

[0004] The shortcomings of these existing technologies not only affect the service life and protective performance of safety shoes, but also pose safety hazards to workers in industrial production. Therefore, those skilled in the art have proposed a method for manufacturing highly wear-resistant and slip-resistant protective safety shoes to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a method for manufacturing highly wear-resistant, anti-slip protective safety shoes, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for manufacturing highly wear-resistant, anti-slip protective safety shoes, comprising the following steps: S1. Select an upper material with high strength, high abrasion resistance, and high toughness. The upper material is composed of a mixture of composite fibers and rubber particles, wherein the composite fibers account for 40-60% of the total weight of the upper material, and the rubber particles account for 20-30% of the total weight of the upper material. S2. Pre-treat the shoe upper material by heating it in an environment with a temperature of 120-150℃ for 1-2 hours, then cooling it to room temperature, and then vibrating the shoe upper material with a high-frequency vibration device at a frequency of 30-50Hz for 10-20 minutes. S3. The upper is made using a hot-press molding process. The pre-treated upper material is placed in a mold, the mold temperature is controlled at 180-200℃, the pressure is 5-10MPa, and the hot-pressing time is 5-10min, so that the upper material fits tightly into the shape of the mold, forming an upper with high wear resistance and protective performance. S4. Making the sole: The sole is composed of multiple layers. The bottom layer is a high abrasion-resistant rubber layer, the middle layer is an anti-slip particle layer, and the top layer is an elastic cushioning layer. S5. The layers of the sole are bonded together using a special bonding process. The adhesive is an epoxy resin with high bonding strength and high temperature resistance. During bonding, the epoxy resin is evenly applied to the bonding surfaces of each layer, and then pressure is applied in an environment with a temperature of 100-120℃, a pressure of 2-4MPa, and a bonding time of 30-60min, so that the layers of the sole are tightly bonded to form a sole with high wear resistance and anti-slip performance. S6. Connect the finished upper to the sole. Use high-strength hot melt adhesive to bond the edges of the upper to the edges of the sole. When bonding, apply the hot melt adhesive evenly to the joint between the edges of the upper and the sole. Then, use a hot pressing device to bond the upper and sole together. The hot pressing temperature is 150-180℃, the pressure is 3-6MPa, and the hot pressing time is 3-5min. This will firmly bond the upper and sole together to form a complete safety shoe. S7. Perform surface treatment on the completed safety shoes by spraying a layer of wear-resistant and anti-slip coating on the upper and sole surfaces of the safety shoes.

[0007] Preferably, in step S1, the composite fiber of the shoe sole is a mixture of carbon fiber and glass fiber, and the mass ratio of carbon fiber to glass fiber is 1:1-3:1.

[0008] Preferably, in step S4, the high abrasion-resistant rubber layer of the sole is a blend of natural rubber and styrene-butadiene rubber, wherein the mass ratio of natural rubber to styrene-butadiene rubber is 2:1-4:1.

[0009] Preferably, in step S4, the elastic cushioning layer of the shoe sole is made of polyurethane foam material, the density of which is 0.1-0.3 g / cm³ and the pore size is 1-3 mm.

[0010] Preferably, in step S4, the thickness of the high wear-resistant rubber layer is 3-5 mm, the thickness of the anti-slip particle layer is 2-4 mm, the thickness of the elastic buffer layer is 5-8 mm, the anti-slip particle layer is uniformly distributed with ceramic particles of 1-3 mm in diameter, and the surface of the ceramic particles is treated with a nano-coating.

[0011] Preferably, in step S5, the epoxy resin adhesive contains 5-10% nano-titanium dioxide by mass.

[0012] Preferably, during the surface treatment of the safety shoes, the wear-resistant and anti-slip coating is applied using an electrostatic spraying process with a spraying voltage of 50-80kV and a spraying distance of 10-20cm.

[0013] Preferably, in step S7, the wear-resistant and anti-slip coating is composed of a mixture of nano-silica, nano-alumina, and organosilicon resin, wherein nano-silica accounts for 20-30% of the total weight of the coating, nano-alumina accounts for 10-20% of the total weight of the coating, and organosilicon resin accounts for 50-60% of the total weight of the coating. The coating thickness is 0.1-0.3 mm. After the coating is completed, the safety shoes are placed in an environment with a temperature of 80-100℃ to dry for 1-2 hours.

[0014] Preferably, the packaging material for the safety shoes is a polyethylene composite film, and the thickness of the polyethylene composite film is 0.2-0.5 mm.

[0015] Preferably, the safety shoes are also subjected to quality testing, including abrasion resistance testing, slip resistance testing, protective performance testing, and overall structural strength testing. After that, the qualified safety shoes are packaged using waterproof, moisture-proof, and dustproof packaging materials, and the product specifications, model, performance indicators, production date, and other relevant information are marked on the packaging.

[0016] This invention provides a method for manufacturing highly wear-resistant, anti-slip, protective safety shoes. It has the following beneficial effects: 1. This invention significantly improves the abrasion resistance and protective performance of safety shoes by employing an upper material composed of a mixture of composite fibers and rubber particles, along with a multi-layered sole design. The composite fiber and rubber particle mixture not only possesses high strength and toughness but also forms a robust protective layer on the upper surface, effectively resisting external physical impacts and abrasion. Simultaneously, the multi-layered design of the sole—comprising a highly abrasion-resistant rubber layer, an anti-slip particle layer, and an elastic cushioning layer—further enhances the abrasion resistance and anti-slip performance of the sole. Especially in harsh working environments such as construction sites, mines, or chemical workshops, it effectively prevents slips and foot injuries, ensuring worker safety. This multi-layered sole design not only extends the service life of safety shoes but also reduces safety risks caused by sole wear, demonstrating significant practicality and innovation.

[0017] 2. This invention significantly improves the production efficiency and product quality of safety shoes through a series of optimized process steps, such as the pretreatment of the upper material, the hot pressing process, and the bonding process of each layer of the sole. For example, the pretreatment process of the upper material, through high-temperature heating and high-frequency vibration, effectively removes impurities and stress from the material, allowing it to better conform to the mold shape during the subsequent hot pressing process, thereby improving the quality and consistency of the upper. Furthermore, the bonding process of each layer of the sole uses epoxy resin adhesive with high bonding strength and high-temperature resistance, and by precisely controlling the bonding temperature and pressure, ensures a tight bond between the layers, avoiding delamination or separation problems that may occur in traditional bonding processes.

[0018] 3. This invention enhances the durability and lifespan of safety shoes by spraying a wear-resistant and anti-slip coating onto the surface. This coating, composed of nano-silica, nano-alumina, and organosilicon resin, possesses excellent wear resistance, anti-slip properties, and corrosion resistance. The sprayed coating effectively resists external chemical corrosion and physical wear while maintaining good anti-slip performance of the upper and sole. Furthermore, the nanomaterial structure of the coating creates a micron-level rough surface, further increasing the friction between the sole and the ground, effectively preventing slips even in wet or oily environments. Attached Figure Description

[0019] Figure 1 This is a flowchart illustrating the manufacturing process of the safety shoe of the present invention. Figure 2 This is a flowchart illustrating the quality inspection and packaging process for the safety shoes of this invention. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see the appendix Figure 1 - Appendix Figure 2 This invention provides a method for manufacturing highly wear-resistant, anti-slip protective safety shoes, comprising the following steps: S1. Select upper materials with high strength, high abrasion resistance and high toughness. The upper material is made of a mixture of composite fibers and rubber particles, with composite fibers accounting for 40% of the total weight of the upper material and rubber particles accounting for 20% of the total weight of the upper material. The composite fiber of the sole is a mixture of carbon fiber and glass fiber, with a mass ratio of carbon fiber to glass fiber of 1:1.

[0022] Specifically, the upper material is a key component of safety shoes, and its performance directly affects the shoe's abrasion resistance, protective capabilities, and lifespan. Choosing high-strength, high-abrasion-resistant, and high-toughness materials ensures that shoes can effectively withstand external impacts and wear in harsh working environments (such as construction sites and mines).

[0023] Composite fibers: Composite fibers typically possess high strength and toughness, providing excellent tear resistance and impact resistance. Here, composite fibers account for 40% of the total weight of the upper material, ensuring sufficient strength and durability for the upper.

[0024] Rubber granules: The addition of rubber granules increases the elasticity and abrasion resistance of the shoe upper, while also providing some anti-slip properties. Rubber granules account for 20% of the total weight of the upper material, enhancing its abrasion resistance and impact resistance without sacrificing strength.

[0025] The significance of the blend ratio: The ratio of 40% composite fibers to 20% rubber granules is optimized to balance the strength, toughness, and abrasion resistance of the upper, enabling it to perform well in complex working environments.

[0026] Carbon fiber: Carbon fiber is a high-strength, high-modulus fiber material with excellent tensile strength and impact resistance, while being lightweight.

[0027] Glass fiber: Glass fiber has good heat resistance and corrosion resistance, and can enhance the overall performance of materials.

[0028] The significance of a 1:1 mass ratio: The mass ratio of carbon fiber to glass fiber is 1:1. This ratio can give full play to the advantages of both fibers, so that the sole can maintain high strength while having good toughness and wear resistance, thereby improving the overall protective performance of safety shoes.

[0029] S2. Pre-treat the shoe upper material by heating it in an environment at 120℃ for 1 hour, then cooling it to room temperature, and then vibrating the shoe upper material using a high-frequency vibration device at a frequency of 30Hz for 10 minutes. Specifically, heating the shoe upper material at 120°C for one hour is primarily to remove moisture and impurities from the material, while simultaneously stabilizing its internal molecular structure. This heat treatment reduces bubbles and cracks caused by moisture evaporation during subsequent processing, thereby improving the material's quality and consistency.

[0030] Cooling to room temperature is to allow the material to return to a suitable temperature before subsequent processing, avoiding the impact of excessively high temperatures on the implementation of subsequent processes. It also helps to eliminate internal thermal stress in the material and ensure uniform material properties.

[0031] High-frequency vibration treatment can further optimize the internal structure of the material, making the composite fibers and rubber particles more evenly distributed. The choice of vibration frequency (30Hz) is based on the material properties and process requirements, and can effectively reduce defects and inhomogeneities in the material.

[0032] The overall significance of preprocessing: Pre-treatment is a crucial step in producing high-quality shoe upper materials. Through heating, cooling, and high-frequency vibration treatment, the uniformity, stability, and subsequent processing performance of the upper materials can be significantly improved, laying the foundation for manufacturing high-performance safety shoes.

[0033] S3. The upper is made using a hot-press molding process. The pre-treated upper material is placed in a mold, the mold temperature is controlled at 180℃, the pressure is 5MPa, and the hot-pressing time is 5min, so that the upper material fits tightly into the shape of the mold, forming an upper with high wear resistance and protective performance. Specifically, the upper material, after being hot-pressed, fits tightly to the shape of the mold, resulting in high abrasion resistance and protective properties. This molding process ensures that the upper can effectively resist external impacts and wear during subsequent use, while maintaining good protective capabilities.

[0034] S4. Making the sole: The sole is composed of multiple layers. The bottom layer is a high abrasion-resistant rubber layer, the middle layer is an anti-slip particle layer, and the top layer is an elastic cushioning layer. In step S4, the high-abrasion-resistant rubber layer of the sole is a blend of natural rubber and styrene-butadiene rubber (SBR), with a mass ratio of 2:1. The elastic cushioning layer of the sole is made of polyurethane foam with a density of 0.1 g / cm³ and a pore size of 1 mm. The high-abrasion-resistant rubber layer is 3 mm thick, the anti-slip particle layer is 2 mm thick, and the elastic cushioning layer is 5 mm thick. The anti-slip particle layer consists of uniformly distributed ceramic particles with a diameter of 1 mm, and the surface of the ceramic particles is treated with a nano-coating.

[0035] Specifically, the significance of multi-layer structure design: The bottom layer (high abrasion-resistant rubber layer): This is the part of the sole that directly contacts the ground, requiring high abrasion resistance and slip resistance. Using a blend of natural rubber and styrene-butadiene rubber combines the elasticity of natural rubber with the abrasion resistance of styrene-butadiene rubber, improving the overall performance of the sole.

[0036] Mid-layer (Anti-slip particle layer): The anti-slip particle layer in the mid-layer increases the friction between the sole and the ground through the raised structure of ceramic particles, significantly improving anti-slip performance. The ceramic particles are highly hard and wear-resistant, effectively preventing slips, especially in wet or oily environments.

[0037] Top layer (elastic cushioning layer): The elastic cushioning layer is made of polyurethane foam, which absorbs impact and reduces pressure on the feet and legs during walking, providing a comfortable wearing experience. The low density (0.1 g / cm³) and small pore size (1 mm) design of the polyurethane foam enable it to maintain a lightweight feel while providing excellent cushioning performance.

[0038] Natural rubber possesses good elasticity and tear resistance, while styrene-butadiene rubber (SBR) exhibits excellent abrasion resistance and oil resistance. The optimized 2:1 mass ratio of these two materials strikes a balance between abrasion resistance and elasticity, ensuring the durability of the sole in challenging environments. Polyurethane foam, due to its lightweight, high elasticity, and excellent cushioning properties, is widely used in shoe sole materials. Polyurethane foam with a density of 0.1 g / cm³ and a pore size of 1 mm can provide sufficient cushioning while reducing the weight of the sole, thus minimizing fatigue during walking.

[0039] S5. The layers of the sole are bonded together using a special bonding process. The adhesive is an epoxy resin with high bonding strength and high temperature resistance. During bonding, the epoxy resin is evenly applied to the bonding surfaces of each layer, and then pressure is applied at 100°C for 2MPa for 30 minutes to ensure that the layers of the sole are tightly bonded, forming a sole with high wear resistance and anti-slip properties. 5% by mass of nano-titanium dioxide is added to the epoxy resin.

[0040] Specifically, epoxy resin adhesive is a type of adhesive with high bonding strength and high-temperature resistance, suitable for bonding various materials. Its high-strength bonding performance ensures that the layers of the shoe sole will not delaminate or detach during long-term use, especially in harsh working environments. The addition of nano-titanium dioxide further enhances the bonding strength and weather resistance of epoxy resin adhesive. Nano-titanium dioxide has good dispersibility and reinforcing properties, capable of filling the micropores in the adhesive layer, improving the density and strength of the adhesive layer, while also enhancing its anti-aging properties.

[0041] Through a special bonding process, the layers of the sole are tightly bonded together to form a single unit. This multi-layered sole not only possesses high abrasion resistance and slip resistance but also provides excellent cushioning, significantly enhancing the overall performance of the safety shoe. In actual use, the bonded sole effectively resists external impacts and abrasion while maintaining good slip resistance, providing reliable protection for the wearer.

[0042] S6. Connect the finished shoe upper to the sole. Use high-strength hot melt adhesive to bond the edges of the shoe upper to the edges of the sole. When bonding, apply the hot melt adhesive evenly to the joint between the edges of the shoe upper and the sole. Then, use a hot pressing device to bond the shoes together. The hot pressing temperature is 150℃, the pressure is 3MPa, and the hot pressing time is 3min, so that the shoe upper and the sole are firmly connected to form a complete safety shoe. Specifically, high-strength hot melt adhesive is an adhesive that melts upon heating and solidifies upon cooling, characterized by fast bonding speed and high bonding strength. Choosing high-strength hot melt adhesive ensures a strong and reliable connection between the shoe upper and sole, capable of withstanding the pulling and impacts of daily use. Applying the hot melt adhesive evenly to the joint between the upper and sole ensures that every part of the adhesive surface makes full contact and bonds, preventing weak adhesion or localized detachment due to uneven adhesive distribution.

[0043] After being heat-pressed and bonded, the upper and sole are firmly connected, forming a complete safety shoe structure. This connection method not only ensures the integrity and stability of the shoe during use, but also effectively prevents moisture and dust from entering the shoe, improving its durability and protective performance.

[0044] S7. Perform surface treatment on the completed safety shoes by spraying a layer of wear-resistant and anti-slip coating onto the upper and sole surfaces. The wear-resistant and anti-slip coating is composed of a mixture of nano-silica, nano-alumina, and organosilicon resin, wherein nano-silica accounts for 20-30% of the total weight of the coating, nano-alumina accounts for 10% of the total weight of the coating, and organosilicon resin accounts for 50% of the total weight of the coating. The spray thickness is 0.1 mm. After spraying, place the safety shoes in an environment with a temperature of 80℃ to dry for 1 hour.

[0045] Specifically, nano-silica exhibits excellent wear resistance and dispersibility, significantly improving the hardness and wear resistance of the coating. Its nano-sized particles can form tiny protrusions on the coating surface, increasing friction and thus enhancing anti-slip performance.

[0046] Nano-alumina possesses high hardness and excellent scratch resistance, further enhancing the coating's abrasion resistance and impact resistance. Its addition effectively prevents the coating from being worn or scratched during use.

[0047] Organosilicon resins possess excellent flexibility and weather resistance, enabling coatings to maintain abrasion resistance while also exhibiting a certain degree of elasticity and anti-aging properties. Their addition ensures that the coating maintains good performance even in complex working environments (such as high temperature and humidity).

[0048] After surface treatment, safety shoes have a uniform, wear-resistant, and slip-resistant coating on the upper and sole. This coating not only significantly improves the shoe's wear resistance and slip resistance but also effectively resists external chemical corrosion and physical abrasion. Furthermore, the coating's nanostructure provides higher friction between the sole and the ground, reducing the risk of slipping and further enhancing the safety shoe's protective performance.

[0049] During the surface treatment of safety shoes, the wear-resistant and anti-slip coating is applied using an electrostatic spraying process with a spraying voltage of 50kV and a spraying distance of 10cm. The packaging material for the safety shoes is a polyethylene composite film with a thickness of 0.2mm.

[0050] It also includes quality testing of safety shoes, including abrasion resistance testing, slip resistance testing, protective performance testing, and overall structural strength testing. After that, the qualified safety shoes are packaged using waterproof, moisture-proof, and dustproof packaging materials, and the packaging is marked with relevant information such as product specifications, model, performance indicators, and production date.

[0051] Comparative Example 1 (Traditional single-material shoe upper) Choose the upper material: use ordinary leather, without composite fibers and rubber particles.

[0052] Pre-treatment of shoe upper materials: only simple cutting is performed, without high-temperature heating or vibration treatment.

[0053] Hot-press forming of shoe uppers: mold temperature 150℃, pressure 3MPa, time 5min.

[0054] Outsole construction: The bottom layer is made of ordinary rubber, 3mm thick; the middle layer is made of non-slip material; the top layer is made of ordinary foam material, 5mm thick.

[0055] The sole layers are bonded using ordinary adhesives at room temperature without pressure treatment.

[0056] Upper and sole connection: glued with ordinary glue, without heat pressing.

[0057] Surface treatment: No wear-resistant and anti-slip coating sprayed.

[0058] Comparative Example 2 (No pretreatment or surface treatment) Choose the upper material: use a mixture of composite fiber (carbon fiber to glass fiber in a mass ratio of 2:1) and rubber granules (50% composite fiber and 25% rubber granules).

[0059] Pretreatment of shoe upper material: No pretreatment step.

[0060] Hot pressing for shoe uppers: mold temperature 190℃, pressure 7.5MPa, time 7.5min.

[0061] Outsole construction: The bottom layer uses a high-abrasion-resistant rubber layer (natural rubber to styrene-butadiene rubber in a 3:1 mass ratio), 4mm thick. The middle layer uses an anti-slip particle layer (2mm diameter ceramic particles with a nano-coating), 3mm thick. The top layer uses an elastic cushioning layer (polyurethane foam, density 0.2g / cm³, pore size 2mm), 6mm thick.

[0062] Bonding of each layer of the sole: Use epoxy resin adhesive with 8% nano titanium dioxide added, bonding temperature 110℃, pressure 3MPa, time 45min.

[0063] Upper and sole connection: High-strength hot melt adhesive is used, with a hot pressing temperature of 165℃, a pressure of 4.5MPa, and a time of 4min.

[0064] Surface treatment: No wear-resistant and anti-slip coating sprayed.

[0065] Comparative Example 3 (without multi-layer sole structure) Choose the upper material: use a mixture of composite fiber (carbon fiber to glass fiber in a mass ratio of 2:1) and rubber granules (50% composite fiber and 25% rubber granules).

[0066] Pretreatment of shoe upper material: The shoe upper material is heated in an environment of 135℃ for 1.5 hours, cooled to room temperature, and then treated by a high-frequency vibration device (frequency 40Hz, time 15min).

[0067] Hot-pressed shoe upper: mold temperature 190℃, pressure 7.5MPa, hot pressing time 7.5min.

[0068] Sole construction: Uses a single, highly abrasion-resistant rubber layer, 8mm thick.

[0069] The sole is bonded with no multi-layer bonding process.

[0070] Upper and sole connection: High-strength hot melt adhesive is used, with a hot pressing temperature of 165℃, a pressure of 4.5MPa, and a time of 4min.

[0071] Surface treatment: Spray a wear-resistant and anti-slip coating (25% nano silica, 15% nano alumina, 60% silicone resin), 0.2mm thick, electrostatic spraying (65kV voltage, 15cm distance), drying temperature 90℃, time 1.5 hours.

[0072] Performance Testing and Comparison Abrasion resistance testing: The abrasion resistance of the upper and sole is tested according to the ASTM D4060 standard, and expressed as abrasion amount (mm³).

[0073] Slip resistance test: The ASTM D2047 standard is used to test the slip resistance of the shoe sole on wet and slippery surfaces, expressed as the coefficient of slip (SC).

[0074] Protective performance testing: The impact resistance of the shoe upper is tested and expressed as impact strength (J).

[0075] Lifespan testing: Simulate real-world usage environments to test the lifespan of safety shoes (expressed as the time it takes for them to wear out and become unusable).

[0076] The test results are shown in Table 1 below: wear resistance 120 mm³ 280 mm³ 180 mm³ Anti-slip performance SC = 0.65 SC = 0.40 SC = 0.50 Protective performance 18 J 10 J 15 J Service life 12 months 6 months 9 months Table 1 Conclusion: The test results above demonstrate that the high abrasion-resistant and anti-slip protective safety shoes of this invention significantly outperform traditional manufacturing methods and some improved comparative examples in terms of abrasion resistance, anti-slip performance, protective performance, and service life. Its innovative material selection (mixing composite fibers with rubber particles), optimized process flow (pretreatment, multi-layer sole structure, surface treatment), and the application of high-performance adhesives and coatings provide strong support for improving the performance of the safety shoes, exhibiting significant practicality and innovation.

[0077] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method of manufacturing high abrasion resistant, slip resistant, protective safety shoes, characterized in that, Includes the following steps: S1. Select an upper material with high strength, high abrasion resistance, and high toughness. The upper material is composed of a mixture of composite fibers and rubber particles, wherein the composite fibers account for 40-60% of the total weight of the upper material, and the rubber particles account for 20-30% of the total weight of the upper material. S2. Pre-treat the shoe upper material by heating it in an environment with a temperature of 120-150℃ for 1-2 hours, then cooling it to room temperature, and then vibrating the shoe upper material with a high-frequency vibration device at a frequency of 30-50Hz for 10-20 minutes. S3. The upper is made using a hot-press molding process. The pre-treated upper material is placed in a mold, the mold temperature is controlled at 180-200℃, the pressure is 5-10MPa, and the hot-pressing time is 5-10min, so that the upper material fits tightly into the shape of the mold, forming an upper with high wear resistance and protective performance. S4. Making the shoe sole: The shoe sole is composed of multiple layers. The bottom layer is a high wear-resistant rubber layer, the middle layer is an anti-slip particle layer, and the top layer is an elastic cushioning layer. S5. Bond the layers of the sole together. The adhesive is an epoxy resin with high bonding strength and high temperature resistance. During bonding, the epoxy resin is evenly applied to the bonding surface of each layer. Then, pressure is applied in an environment with a temperature of 100-120℃, the pressure is 2-4MPa, and the bonding time is 30-60min to make the layers of the sole tightly bonded, forming a sole with high wear resistance and anti-slip performance. S6. Connect the finished upper to the sole. Use high-strength hot melt adhesive to bond the edges of the upper to the edges of the sole. When bonding, apply the hot melt adhesive evenly to the joint between the edges of the upper and the sole. Then, use a hot pressing device to bond the upper and sole together. The hot pressing temperature is 150-180℃, the pressure is 3-6MPa, and the hot pressing time is 3-5min. This will firmly bond the upper and sole together to form a complete safety shoe. S7. Perform surface treatment on the completed safety shoes by spraying a layer of wear-resistant and anti-slip coating on the upper and sole surfaces of the safety shoes.

2. The method for manufacturing high wear-resistant, anti-slip protective safety shoes according to claim 1, characterized in that, In step S1, the composite fiber of the shoe upper is a mixture of carbon fiber and glass fiber, and the mass ratio of carbon fiber to glass fiber is 1:1-3:

1.

3. The method for manufacturing high wear-resistant, anti-slip protective safety shoes according to claim 1, characterized in that, In step S4, the high abrasion-resistant rubber layer of the shoe sole is a blend of natural rubber and styrene-butadiene rubber, with a mass ratio of natural rubber to styrene-butadiene rubber of 2:1-4:

1.

4. The method for manufacturing high wear-resistant, anti-slip protective safety shoes according to claim 1, characterized in that, In step S4, the elastic cushioning layer of the shoe sole is made of polyurethane foam material with a density of 0.1-0.3 g / cm³ and a pore size of 1-3 mm.

5. The method for manufacturing high wear-resistant, anti-slip protective safety shoes according to claim 1, characterized in that, In step S4, the thickness of the high wear-resistant rubber layer is 3-5 mm, the thickness of the anti-slip particle layer is 2-4 mm, the thickness of the elastic buffer layer is 5-8 mm, and the anti-slip particle layer is uniformly distributed with ceramic particles of 1-3 mm in diameter, the surface of which is treated with a nano-coating.

6. The method for manufacturing high wear-resistant, anti-slip protective safety shoes according to claim 1, characterized in that, In step S5, the epoxy resin adhesive contains 5-10% nano-titanium dioxide by mass.

7. The method for manufacturing high wear-resistant, anti-slip protective safety shoes according to claim 1, characterized in that, During the surface treatment of the safety shoes, the wear-resistant and anti-slip coating is applied using an electrostatic spraying process with a spraying voltage of 50-80kV and a spraying distance of 10-20cm.

8. The method for manufacturing high wear-resistant, anti-slip protective safety shoes according to claim 1, characterized in that, In step S7, the wear-resistant and anti-slip coating is composed of a mixture of nano-silica, nano-alumina, and organosilicon resin. Nano-silica accounts for 20-30% of the total weight of the coating, nano-alumina accounts for 10-20% of the total weight of the coating, and organosilicon resin accounts for 50-60% of the total weight of the coating. The coating thickness is 0.1-0.3 mm. After the coating is completed, the safety shoes are placed in an environment with a temperature of 80-100℃ to dry for 1-2 hours.

9. The method for manufacturing high wear-resistant, anti-slip protective safety shoes according to claim 1, characterized in that, The packaging material for the safety shoes is a polyethylene composite film, and the thickness of the polyethylene composite film is 0.2-0.5mm.

10. The method for manufacturing high wear-resistant, anti-slip protective safety shoes according to claim 1, characterized in that, It also includes quality testing of safety shoes, including abrasion resistance testing, slip resistance testing, protective performance testing, and overall structural strength testing. After that, the qualified safety shoes are packaged using waterproof, moisture-proof, and dustproof packaging materials, and the product specifications, model, performance indicators, production date and other relevant information are marked on the packaging.

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