Preparation process of cutting-resistant and puncture-proof protective gloves

Abstract

The invention discloses a preparation process of cutting-resistant and puncture-proof protective gloves, and belongs to the technical field of preparation methods of protective gloves. According to the technology, the four steps of pretreatment, composite coating material dipping, dipping of different butadiene-acrylonitrile rubber latexes and partitioned vulcanization treatment are adopted, balance of protection performance and wearing comfort is achieved through combination of technology optimization and material innovation, the cutting resistance of the prepared protective gloves reaches the grade E of the GB24541-2022 standard, the puncture resistance and the tear resistance both reach the grade 4, and the service life of the protective gloves is prolonged. And the composite material is good in air permeability and excellent in durability, is particularly suitable for high-risk operation scenes such as military, security and metal processing, and has remarkable technical progress and industrialization value.

Description

Technical Field

[0001] The present invention belongs to the technical field of preparation of protective gloves, and in particular relates to a preparation process of cut-resistant and puncture-resistant protective gloves. Background Art

[0002] Protective gloves, as a core component of personal protective equipment (PPE), are widely used in the medical, industrial, laboratory, military, and consumer sectors. With the increasing performance requirements for PPE in modern industry, security, and specialized operations, the demand for cut-resistant and puncture-resistant functional protective gloves is growing. In high-risk operations such as machining, metal processing, glass manufacturing, criminal investigation, law enforcement, and rescue operations, operators' hands are often exposed to threats such as cuts, punctures, and friction from sharp objects. Traditional protective gloves, due to limitations in their materials and structures, struggle to simultaneously meet the dual requirements of high protection levels and wearer comfort.

[0003] At present, the mainstream cut-resistant and puncture-resistant gloves on the market mostly adopt the following technical solutions: 1) Metal fiber blending technology: By blending metal fibers such as stainless steel wire and titanium alloy wire with chemical fibers or cotton yarn, the high strength of metal is used to achieve puncture resistance. However, this type of gloves is stiff and heavy, and wearing for a long time can easily cause hand fatigue, and the metal fibers are prone to breakage and produce burrs, posing a safety hazard. 2) Ultra-high molecular weight polyethylene (UHMWPE) fiber weaving technology: UHMWPE fiber has excellent cut resistance, but its puncture resistance is limited by the linear density and weaving density of the fiber, and its protection against fine needle-like sharp objects is insufficient, and the material cost is relatively high. 3) Composite laminated structure: Multiple layers of materials (such as aramid fabric, polyurethane coating, and metal film) are compounded by adhesives, but the bonding strength between layers is significantly affected by temperature and humidity, and it is prone to delamination and failure after long-term use. The process is complex and the cost is high. In addition, the existing technology generally has the following defects: Single protective performance: Most products focus on only one function, either cut resistance or puncture resistance, making it difficult to cope with complex threats (such as scenarios where sharp edges and pointed objects are present). Insufficient comfort and flexibility: In pursuit of a high level of protection, gloves often sacrifice breathability, tactile sensitivity, and finger flexibility, affecting work efficiency. Poor durability: Repeated bending or friction can easily lead to fiber breakage, coating shedding, and rapid degradation of protective performance. Therefore, there is an urgent need for a process for preparing protective gloves that combine high cut resistance, strong puncture resistance, excellent comfort, and long-term durability. Summary of the Invention

[0004] The purpose of the present invention is to provide a preparation process for cut-resistant and puncture-resistant protective gloves, which solves the problem that existing protective gloves are insufficient in cut resistance and the gloves themselves are easily punctured when colliding with sharp objects through a combination of process optimization and material innovation.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is: A process for preparing cut-resistant and puncture-resistant protective gloves comprises the following steps: Step 1, pre-treating the fiber knitted glove body; Step 2: The pretreated glove body is placed on the mold and heated to 45°C for 30 minutes. The preheated hand mold is then vertically immersed in the composite coating material. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a nano-ceramic bridging layer. Step 3: Prepare nitrile latex liquid A and nitrile latex liquid B respectively, immerse the hand model processed in step 2 in nitrile latex liquid B for 3-5 seconds, remove it, let it stand for 30-50 seconds, and then pre-bake it at 60°C for 1 minute. Then immerse it again in nitrile latex liquid A for 8-10 seconds so that liquid A only covers the palm area, remove it, and then place the hand model in a microwave device for pre-foaming treatment for 30-45 seconds at a microwave power of 300W; Step 4: vulcanize the pre-foamed hand mold at 65°C for 10-15 minutes, then heat to 110°C for 2-3 minutes, and then heat to 130°C for further vulcanization. At the same time, use near-infrared light to scan the palm area, adjust the infrared scanning speed, and continue vulcanizing for 5-8 minutes. After natural cooling, demoulding is completed to obtain cut-resistant and puncture-resistant protective gloves.

[0006] Preferably, the pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1 and a power of 0.8 W / cm 2 , time 5 minutes.

[0007] Preferably, in step 2, the speed of vertically immersing the hand mold into the composite coating material is 8 cm / min, and the pulling speed is 4 cm / min.

[0008] Preferably, the composite coating material is made of the following raw materials in parts by weight: 40-45 parts of silane-modified epoxy resin, 30-32 parts of methyltriethoxysilane, 8-10 parts of nano-silicon carbide, 1-2 parts of graphene nanosheets, 15-20 parts of ethanol / water mixture, and 1-2 parts of ethylene glycol butyl ether.

[0009] Preferably, the preparation method of the composite coating material is as follows: S1: Bisphenol A epoxy resin E51 and KH550 were mixed uniformly at a mass ratio of 10:1, and the mixture was heated to 40°C for 3 hours to obtain a silane-modified epoxy resin. S2: Anhydrous ethanol and deionized water were prepared in a volume ratio of 7:3 to form an ethanol / water mixture. The pH of the mixture was adjusted to 4.5 with 0.1 M hydrochloric acid. Methyltriethoxysilane was then added thereto. The mixture was magnetically stirred at room temperature for 30 minutes to obtain a mixture A. S3: After mixing nano-silicon carbide and graphene nanosheets, mechanical ball milling was performed for 2 h at a speed of 300 rpm and a ball-to-material ratio of 5:1 to obtain SiC-graphene mixed powder; S4: adding SiC-graphene mixed powder to mixed solution A and ultrasonically dispersing for 30 min to obtain mixed solution B; S5: After heating the silane-modified epoxy resin obtained in S1 to 40° C., add the mixed solution B thereto, then add ethylene glycol butyl ether and stir magnetically for 30 minutes, then stand in the dark at room temperature for 90-95 minutes to obtain a composite coating material.

[0010] Preferably, the nitrile latex liquid A in step 3 is made from the following raw materials in parts by weight: 500-600 parts of nitrile latex, 15-35 parts of sulfur, 6-10 parts of zinc oxide, 2-3 parts of silicon carbide micropowder, 15-25 parts of sodium dodecylbenzenesulfonate, 3-5 parts of sodium polyacrylate, 6-10 parts of antioxidant 264, 8-15 parts of accelerator ZDC, and 1-2 parts of nano-tungsten cesium oxide.

[0011] Preferably, the nitrile latex liquid B in step 3 is made of the following raw materials in parts by weight: 300-500 parts of nitrile latex, 10-25 parts of sulfur, 5-8 parts of zinc oxide, 8-12 parts of composite foaming agent, 3-5 parts of hydroxymethyl ethyl cellulose, 5-8 parts of antioxidant RD, and 0.5-1.5 parts of silicone defoaming agent; the composite foaming agent is composed of azodicarbonamide and sodium bicarbonate in a mass ratio of 1:1.

[0012] Preferably, the fiber knitted glove body is made of one or more of ultra-high molecular weight polyethylene fiber and aramid fiber.

[0013] Preferably, in step 4, the near-infrared light scanning wavelength is 808 nm, the spot diameter is 20 mm, and the spot scanning speed is 5 mm / s.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) By compounding silane-modified epoxy resin with methyltriethoxysilane, nano-silicon carbide and graphene nanosheets, a high-hardness and high-toughness ceramic-polymer composite coating material is formed. The surface of the glove fiber body is first effectively activated by low-temperature plasma treatment with argon-oxygen mixed gas to improve the adhesion of the subsequent coating material. After coating, the coating is pre-cured at 80°C and sintered at 150°C in two steps to promote cross-linking of the resin and nanoparticles to form a stable "bridge" structure to prevent the coating from peeling off. This process can enable the composite coating material to form a high-hardness and high-toughness ceramic protective layer on the fiber surface, greatly improving the cut and puncture resistance. (2) The gloves of the present invention adopt a regional differentiated functional design. In the palm area, a composite structure of a B-liquid foam bottom layer (flexible cushioning) + an A-liquid high-filling surface layer (wear-resistant and puncture-resistant) is formed by two dippings. The back of the hand adopts a lightweight foam B-liquid, achieving a balance between high-strength protection in key areas and flexible breathability in non-operating areas. At the same time, a zoned vulcanization treatment method is adopted. For the palm area, near-infrared scanning is used, and a specific scanning speed and range are set. Since the palm contains nano-tungsten oxide cesium absorbing material, the local temperature can be raised to about 160°C to accelerate cross-linking, while the back of the hand without infrared scanning is kept at 130°C for vulcanization treatment, realizing zoned vulcanization of different areas and precise directional vulcanization of the palm area, ensuring high hardness of the palm and good flexibility of the back of the hand. At the same time, the infrared scanning speed and range are reasonably set to avoid brittleness of the rubber layer caused by local over-vulcanization.

[0015] (3) The present invention achieves a balance between protective performance and wearing comfort through the collaborative innovation of materials, processes and structures. The cut resistance of the protective gloves produced reaches GB24541-2022 standard E level, and the puncture resistance and tear resistance both reach level 4. It also has good air permeability and excellent durability. It is particularly suitable for high-risk operation scenarios such as military, security, and metal processing, and has significant technological progress and industrialization value. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be further described below with reference to specific embodiments, but is not limited thereto.

[0017] Example 1 A process for preparing cut-resistant and puncture-resistant protective gloves comprises the following steps: Step 1: pretreating a fiber knitted glove body; the fiber knitted glove body is made of ultra-high molecular weight polyethylene fiber; Step 2: The pretreated glove body is placed in a mold and heated to 45°C for 30 minutes. The preheated glove mold is then vertically immersed in the composite coating material. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a nano-ceramic bridging layer. Step 3: Prepare nitrile latex liquid A and nitrile latex liquid B respectively, immerse the hand model processed in step 2 in nitrile latex liquid B for 3 seconds, remove it, let it stand for 30 seconds, and then pre-bake it at 60°C for 1 minute. Then immerse it again in nitrile latex liquid A for 8 seconds so that liquid A only covers the palm area, remove it, and then place the hand model in a microwave device for pre-foaming treatment for 30 seconds at a microwave power of 300W; Step 4: vulcanize the pre-foamed hand mold at 65°C for 10 minutes, heat it to 110°C for 2 minutes, and then heat it to 130°C for further vulcanization. At the same time, use near-infrared light to scan the palm area. The near-infrared light scanning wavelength is 808nm, the spot diameter is 20mm, and the spot scanning speed is 5mm / s. After vulcanization for 5 minutes, the hand mold is demoulded after natural cooling to obtain the cut-resistant and puncture-resistant protective gloves.

[0018] The pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1, a power of 0.8 W / cm², and a time of 5 minutes.

[0019] In step 2, the speed of vertically immersing the hand mold into the composite coating material is 8 cm / min, and the pulling speed is 4 cm / min.

[0020] The composite coating material is made of the following raw materials in parts by weight: 40 parts of silane-modified epoxy resin, 30 parts of methyltriethoxysilane, 8 parts of nano-silicon carbide, 1 part of graphene nanosheets, 15 parts of ethanol / water mixed solution, and 1 part of ethylene glycol butyl ether.

[0021] The preparation method of the composite coating material is as follows: S1: Bisphenol A epoxy resin E51 and KH550 were mixed uniformly at a mass ratio of 10:1, and the mixture was heated to 40°C for 3 hours to obtain a silane-modified epoxy resin. S2: Anhydrous ethanol and deionized water were prepared in a volume ratio of 7:3 to form an ethanol / water mixture. The pH of the mixture was adjusted to 4.5 with 0.1 M hydrochloric acid. Methyltriethoxysilane was then added thereto. The mixture was magnetically stirred at room temperature for 30 minutes to obtain a mixture A. S3: After mixing nano-silicon carbide and graphene nanosheets, mechanical ball milling was performed for 2 h at a speed of 300 rpm and a ball-to-material ratio of 5:1 to obtain SiC-graphene mixed powder; S4: adding SiC-graphene mixed powder to mixed solution A and ultrasonically dispersing for 30 min to obtain mixed solution B; S5: After heating the silane-modified epoxy resin obtained in S1 to 40° C., the mixed solution B is added thereto, and then ethylene glycol butyl ether is added thereto and magnetically stirred for 30 minutes. The mixture is then allowed to stand in the dark at room temperature for 90 minutes to obtain a composite coating material.

[0022] The nitrile latex liquid A in step 3 is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 15 parts of sulfur, 6 parts of zinc oxide, 2 parts of silicon carbide micropowder, 15 parts of sodium dodecylbenzenesulfonate, 3 parts of sodium polyacrylate, 6 parts of antioxidant 264, 8 parts of accelerator ZDC, and 1 part of nano-tungsten cesium oxide.

[0023] In step 3, the nitrile latex liquid B is prepared from the following raw materials in parts by weight: 300 parts of nitrile latex, 10 parts of sulfur, 5 parts of zinc oxide, 8 parts of a composite foaming agent, 3 parts of hydroxymethyl ethyl cellulose, 5 parts of an antioxidant RD, and 0.5 parts of a silicone defoaming agent; the composite foaming agent is composed of azodicarbonamide and sodium bicarbonate in a mass ratio of 1:1.

[0024] Example 2 A process for preparing cut-resistant and puncture-resistant protective gloves comprises the following steps: Step 1: pretreating a fiber knitted glove body; the fiber knitted glove body is made of aramid fiber; Step 2: The pretreated glove body is placed in a mold and heated to 45°C for 30 minutes. The preheated glove mold is then vertically immersed in the composite coating material. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a nano-ceramic bridging layer. Step 3: Prepare nitrile latex liquid A and nitrile latex liquid B respectively, immerse the hand model processed in step 2 in nitrile latex liquid B for 5 seconds, remove it, let it stand for 50 seconds, and then pre-bake it at 60°C for 1 minute. Then immerse it again in nitrile latex liquid A for 10 seconds so that liquid A only covers the palm area, remove it, and then place the hand model in a microwave device for pre-foaming treatment for 45 seconds, with a microwave power of 300W; Step 4: vulcanize the pre-foamed hand mold at 65°C for 10-15 minutes, heat it to 110°C for 2-3 minutes, and then heat it to 130°C for further vulcanization. At the same time, use near-infrared light to scan the palm area. The near-infrared light scanning wavelength is 808nm, the spot diameter is 20mm, and the spot scanning speed is 5mm / s. After continuous vulcanization for 5-8 minutes, the hand mold is demoulded after natural cooling to obtain the cut-resistant and puncture-resistant protective gloves.

[0025] The pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1, a power of 0.8 W / cm², and a time of 5 minutes.

[0026] In step 2, the speed of vertically immersing the hand mold into the composite coating material is 8 cm / min, and the pulling speed is 4 cm / min.

[0027] The composite coating material is made of the following raw materials in parts by weight: 45 parts of silane-modified epoxy resin, 32 parts of methyltriethoxysilane, 8 parts of nano-silicon carbide, 1 part of graphene nanosheets, 15 parts of ethanol / water mixed solution, and 1 part of ethylene glycol butyl ether.

[0028] The preparation method of the composite coating material is as follows: S1: Bisphenol A epoxy resin E51 and KH550 were mixed uniformly at a mass ratio of 10:1, and the mixture was heated to 40°C for 3 hours to obtain a silane-modified epoxy resin. S2: Anhydrous ethanol and deionized water were prepared in a volume ratio of 7:3 to form an ethanol / water mixture. The pH of the mixture was adjusted to 4.5 with 0.1 M hydrochloric acid. Methyltriethoxysilane was then added thereto. The mixture was magnetically stirred at room temperature for 30 minutes to obtain a mixture A. S3: After mixing nano-silicon carbide and graphene nanosheets, mechanical ball milling was performed for 2 h at a speed of 300 rpm and a ball-to-material ratio of 5:1 to obtain SiC-graphene mixed powder; S4: adding SiC-graphene mixed powder to mixed solution A and ultrasonically dispersing for 30 min to obtain mixed solution B; S5: After heating the silane-modified epoxy resin obtained in S1 to 40° C., add the mixed solution B thereto, then add ethylene glycol butyl ether and stir magnetically for 30 minutes, then stand in the dark at room temperature for 90-95 minutes to obtain a composite coating material.

[0029] The nitrile latex liquid A in step 3 is prepared from the following raw materials in parts by weight: 600 parts of nitrile latex, 35 parts of sulfur, 10 parts of zinc oxide, 3 parts of silicon carbide micropowder, 25 parts of sodium dodecylbenzenesulfonate, 5 parts of sodium polyacrylate, 10 parts of antioxidant 264, 15 parts of accelerator ZDC, and 2 parts of nano-tungsten cesium oxide.

[0030] In step 3, the nitrile latex liquid B is made from the following raw materials in parts by weight: 500 parts of nitrile latex, 25 parts of sulfur, 8 parts of zinc oxide, 12 parts of a composite foaming agent, 5 parts of hydroxymethyl ethyl cellulose, 8 parts of antioxidant RD, and 1.5 parts of a silicone defoaming agent; the composite foaming agent is composed of azodicarbonamide and sodium bicarbonate in a mass ratio of 1:1.

[0031] Example 3 A process for preparing cut-resistant and puncture-resistant protective gloves comprises the following steps: Step 1: pretreating a fiber knitted glove body; the fiber knitted glove body is made of ultra-high molecular weight polyethylene fiber; Step 2: The pretreated glove body is placed in a mold and heated to 45°C for 30 minutes. The preheated glove mold is then vertically immersed in the composite coating material. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a nano-ceramic bridging layer. Step 3: Prepare nitrile latex liquid A and nitrile latex liquid B respectively, immerse the hand model processed in step 2 in nitrile latex liquid B for 4 seconds, remove it, let it stand for 40 seconds, and then pre-bake it at 60°C for 1 minute. Then immerse it again in nitrile latex liquid A for 9 seconds so that liquid A only covers the palm area, remove it, and then place the hand model in a microwave device for pre-foaming treatment for 40 seconds, with a microwave power of 300W; Step 4: vulcanize the pre-foamed hand mold at 65°C for 10-15 minutes, heat it to 110°C for 2-3 minutes, and then heat it to 130°C for further vulcanization. At the same time, use near-infrared light to scan the palm area. The near-infrared light scanning wavelength is 808nm, the spot diameter is 20mm, and the spot scanning speed is 5mm / s. After continuous vulcanization for 5-8 minutes, the hand mold is demoulded after natural cooling to obtain the cut-resistant and puncture-resistant protective gloves.

[0032] The pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1, a power of 0.8 W / cm², and a time of 5 minutes.

[0033] In step 2, the speed of vertically immersing the hand mold into the composite coating material is 8 cm / min, and the pulling speed is 4 cm / min.

[0034] The composite coating material is made of the following raw materials in parts by weight: 42 parts of silane-modified epoxy resin, 31 parts of methyltriethoxysilane, 9 parts of nano-silicon carbide, 1.5 parts of graphene nanosheets, 18 parts of ethanol / water mixture, and 1.5 parts of ethylene glycol butyl ether.

[0035] The preparation method of the composite coating material is as follows: S1: Bisphenol A epoxy resin E51 and KH550 were mixed uniformly at a mass ratio of 10:1, and the mixture was heated to 40°C for 3 hours to obtain a silane-modified epoxy resin. S2: Anhydrous ethanol and deionized water were prepared in a volume ratio of 7:3 to form an ethanol / water mixture. The pH of the mixture was adjusted to 4.5 with 0.1 M hydrochloric acid. Methyltriethoxysilane was then added thereto. The mixture was magnetically stirred at room temperature for 30 minutes to obtain a mixture A. S3: After mixing nano-silicon carbide and graphene nanosheets, mechanical ball milling was performed for 2 h at a speed of 300 rpm and a ball-to-material ratio of 5:1 to obtain SiC-graphene mixed powder; S4: adding SiC-graphene mixed powder to mixed solution A and ultrasonically dispersing for 30 min to obtain mixed solution B; S5: After heating the silane-modified epoxy resin obtained in S1 to 40° C., add the mixed solution B thereto, then add ethylene glycol butyl ether and stir magnetically for 30 minutes, then stand in the dark at room temperature for 90-95 minutes to obtain a composite coating material.

[0036] The nitrile latex liquid A in step 3 is prepared from the following raw materials in parts by weight: 550 parts of nitrile latex, 25 parts of sulfur, 8 parts of zinc oxide, 2.5 parts of silicon carbide micropowder, 20 parts of sodium dodecylbenzene sulfonate, 4 parts of sodium polyacrylate, 8 parts of antioxidant 264, 12 parts of accelerator ZDC, and 1.5 parts of nano-tungsten cesium oxide.

[0037] In step 3, the nitrile latex liquid B is prepared from the following raw materials in parts by weight: 400 parts of nitrile latex, 18 parts of sulfur, 6 parts of zinc oxide, 10 parts of a composite foaming agent, 4 parts of hydroxymethyl ethyl cellulose, 7 parts of antioxidant RD, and 1 part of a silicone defoaming agent; the composite foaming agent is composed of azodicarbonamide and sodium bicarbonate in a mass ratio of 1:1.

[0038] Example 4 A process for preparing cut-resistant and puncture-resistant protective gloves comprises the following steps: Step 1: pretreating a fiber knitted glove body; the fiber knitted glove body is made of ultra-high molecular weight polyethylene fiber; Step 2: The pretreated glove body is placed in a mold and heated to 45°C for 30 minutes. The preheated glove mold is then vertically immersed in the composite coating material. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a nano-ceramic bridging layer. Step 3: Prepare nitrile latex liquid A and nitrile latex liquid B respectively, immerse the hand model processed in step 2 in nitrile latex liquid B for 5 seconds, remove it, let it stand for 40 seconds, and then pre-bake it at 60°C for 1 minute. Then immerse it again in nitrile latex liquid A for 10 seconds so that liquid A only covers the palm area, remove it, and then place the hand model in a microwave device for pre-foaming treatment for 35 seconds at a microwave power of 300W; Step 4: vulcanize the pre-foamed hand mold at 65°C for 10 minutes, heat it to 110°C for 2 minutes, and then heat it to 130°C for further vulcanization. At the same time, use near-infrared light to scan the palm area. The near-infrared light scanning wavelength is 808nm, the spot diameter is 20mm, and the spot scanning speed is 5mm / s. After vulcanization for 7 minutes, the hand mold is demoulded after natural cooling to obtain the cut-resistant and puncture-resistant protective gloves.

[0039] The pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1, a power of 0.8 W / cm², and a time of 5 minutes.

[0040] In step 2, the speed of vertically immersing the hand mold into the composite coating material is 8 cm / min, and the pulling speed is 4 cm / min.

[0041] The composite coating material is made of the following raw materials in parts by weight: 42 parts of silane-modified epoxy resin, 31 parts of methyltriethoxysilane, 8 parts of nano-silicon carbide, 1 part of graphene nanosheets, 15 parts of ethanol / water mixed solution, and 1 part of ethylene glycol butyl ether.

[0042] The preparation method of the composite coating material is as follows: S1: Bisphenol A epoxy resin E51 and KH550 were mixed uniformly at a mass ratio of 10:1, and the mixture was heated to 40°C for 3 hours to obtain a silane-modified epoxy resin. S2: Anhydrous ethanol and deionized water were prepared in a volume ratio of 7:3 to form an ethanol / water mixture. The pH of the mixture was adjusted to 4.5 with 0.1 M hydrochloric acid. Methyltriethoxysilane was then added thereto. The mixture was magnetically stirred at room temperature for 30 minutes to obtain a mixture A. S3: After mixing nano-silicon carbide and graphene nanosheets, mechanical ball milling was performed for 2 h at a speed of 300 rpm and a ball-to-material ratio of 5:1 to obtain SiC-graphene mixed powder; S4: adding SiC-graphene mixed powder to mixed solution A and ultrasonically dispersing for 30 min to obtain mixed solution B; S5: After heating the silane-modified epoxy resin obtained in S1 to 40° C., add the mixed solution B thereto, then add ethylene glycol butyl ether and stir magnetically for 30 minutes, then stand in the dark at room temperature for 90-95 minutes to obtain a composite coating material.

[0043] The nitrile latex liquid A in step 3 is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 30 parts of sulfur, 8 parts of zinc oxide, 2 parts of silicon carbide micropowder, 25 parts of sodium dodecylbenzenesulfonate, 5 parts of sodium polyacrylate, 8 parts of antioxidant 264, 10 parts of accelerator ZDC, and 1 part of nano-tungsten cesium oxide.

[0044] In step 3, the nitrile latex liquid B is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 25 parts of sulfur, 6 parts of zinc oxide, 9 parts of a composite foaming agent, 3 parts of hydroxymethyl ethyl cellulose, 6 parts of antioxidant RD, and 0.5 parts of a silicone defoaming agent; the composite foaming agent is composed of azodicarbonamide and sodium bicarbonate in a mass ratio of 1:1.

[0045] Comparative Example 1 A process for preparing cut-resistant and puncture-resistant protective gloves comprises the following steps: Step 1: pretreating a fiber knitted glove body; the fiber knitted glove body is made of ultra-high molecular weight polyethylene fiber; Step 2: The pretreated glove body is placed on the mold and heated to 45°C for 30 minutes. The preheated hand mold is then vertically immersed in silane-modified epoxy resin. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a bridging layer. Step 3: Prepare nitrile latex liquid A and nitrile latex liquid B respectively, immerse the hand model processed in step 2 in nitrile latex liquid B for 5 seconds, remove it, let it stand for 40 seconds, and then pre-bake it at 60°C for 1 minute. Then immerse it again in nitrile latex liquid A for 10 seconds so that liquid A only covers the palm area, remove it, and then place the hand model in a microwave device for pre-foaming treatment for 35 seconds at a microwave power of 300W; Step 4: vulcanize the pre-foamed hand mold at 65°C for 10 minutes, heat it to 110°C for 2 minutes, and then heat it to 130°C for further vulcanization. At the same time, use near-infrared light to scan the palm area. The near-infrared light scanning wavelength is 808nm, the spot diameter is 20mm, and the spot scanning speed is 5mm / s. After vulcanization for 7 minutes, the hand mold is demoulded after natural cooling to obtain the cut-resistant and puncture-resistant protective gloves.

[0046] The pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1, a power of 0.8 W / cm², and a time of 5 minutes.

[0047] In step 2, the speed of vertically immersing the hand mold into the silane-modified epoxy resin is 8 cm / min, and the pulling speed is 4 cm / min.

[0048] The preparation method of the silane-modified epoxy resin is as follows: bisphenol A epoxy resin E51 and KH550 are uniformly mixed in a mass ratio of 10:1, the mixed solution is heated to 40° C. and reacted for 3 hours, and the silane-modified epoxy resin is obtained after the reaction is completed.

[0049] The nitrile latex liquid A in step 3 is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 30 parts of sulfur, 8 parts of zinc oxide, 2 parts of silicon carbide micropowder, 25 parts of sodium dodecylbenzenesulfonate, 5 parts of sodium polyacrylate, 8 parts of antioxidant 264, 10 parts of accelerator ZDC, and 1 part of nano-tungsten cesium oxide.

[0050] In step 3, the nitrile latex liquid B is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 25 parts of sulfur, 6 parts of zinc oxide, 9 parts of a composite foaming agent, 3 parts of hydroxymethyl ethyl cellulose, 6 parts of antioxidant RD, and 0.5 parts of a silicone defoaming agent; the composite foaming agent is composed of azodicarbonamide and sodium bicarbonate in a mass ratio of 1:1.

[0051] This comparative example is basically the same as Example 4, with the only difference being that in step 2, silane-modified epoxy resin is used instead of the composite coating material.

[0052] Comparative Example 2 A process for preparing cut-resistant and puncture-resistant protective gloves comprises the following steps: Step 1: pretreating a fiber knitted glove body; the fiber knitted glove body is made of ultra-high molecular weight polyethylene fiber; Step 2: The pretreated glove body is placed in a mold and heated to 45°C for 30 minutes. The preheated glove mold is then vertically immersed in the composite coating material. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a nano-ceramic bridging layer. Step 3: Prepare nitrile latex liquid A, immerse the hand model processed in step 2 in the nitrile latex liquid A for 10 seconds, then remove it, and then place the hand model in a microwave device for pre-foaming treatment for 35 seconds at a microwave power of 300 W; Step 4: vulcanize the pre-foamed hand mold at 65°C for 10 minutes, heat it to 110°C for 2 minutes, and then heat it to 130°C for further vulcanization. At the same time, use near-infrared light to scan the palm area. The near-infrared light scanning wavelength is 808nm, the spot diameter is 20mm, and the spot scanning speed is 5mm / s. After vulcanization for 7 minutes, the hand mold is demoulded after natural cooling to obtain the cut-resistant and puncture-resistant protective gloves.

[0053] The pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1, a power of 0.8 W / cm², and a time of 5 minutes.

[0054] In step 2, the speed of vertically immersing the hand mold into the composite coating material is 8 cm / min, and the pulling speed is 4 cm / min.

[0055] The composite coating material is made of the following raw materials in parts by weight: 42 parts of silane-modified epoxy resin, 31 parts of methyltriethoxysilane, 8 parts of nano-silicon carbide, 1 part of graphene nanosheets, 15 parts of ethanol / water mixed solution, and 1 part of ethylene glycol butyl ether.

[0056] The preparation method of the composite coating material is as follows: S1: Bisphenol A epoxy resin E51 and KH550 were mixed uniformly at a mass ratio of 10:1, and the mixture was heated to 40°C for 3 hours to obtain a silane-modified epoxy resin. S2: Anhydrous ethanol and deionized water were prepared in a volume ratio of 7:3 to form an ethanol / water mixture. The pH of the mixture was adjusted to 4.5 with 0.1 M hydrochloric acid. Methyltriethoxysilane was then added thereto. The mixture was magnetically stirred at room temperature for 30 minutes to obtain a mixture A. S3: After mixing nano-silicon carbide and graphene nanosheets, mechanical ball milling was performed for 2 h at a speed of 300 rpm and a ball-to-material ratio of 5:1 to obtain SiC-graphene mixed powder; S4: adding SiC-graphene mixed powder to mixed solution A and ultrasonically dispersing for 30 min to obtain mixed solution B; S5: After heating the silane-modified epoxy resin obtained in S1 to 40° C., add the mixed solution B thereto, then add ethylene glycol butyl ether and stir magnetically for 30 minutes, then stand in the dark at room temperature for 90-95 minutes to obtain a composite coating material.

[0057] The nitrile latex liquid A in step 3 is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 30 parts of sulfur, 8 parts of zinc oxide, 2 parts of silicon carbide micropowder, 25 parts of sodium dodecylbenzenesulfonate, 5 parts of sodium polyacrylate, 8 parts of antioxidant 264, 10 parts of accelerator ZDC, and 1 part of nano-tungsten cesium oxide.

[0058] This comparative example is basically the same as Example 4, except that in step 3, the gloves are only treated by dipping in nitrile latex solution A.

[0059] Comparative Example 3 A process for preparing cut-resistant and puncture-resistant protective gloves comprises the following steps: Step 1: pretreating a fiber knitted glove body; the fiber knitted glove body is made of ultra-high molecular weight polyethylene fiber; Step 2: The pretreated glove body is placed in a mold and heated to 45°C for 30 minutes. The preheated glove mold is then vertically immersed in the composite coating material. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a nano-ceramic bridging layer. Step 3: Prepare nitrile latex liquid A and nitrile latex liquid B respectively, immerse the hand model processed in step 2 in nitrile latex liquid B for 5 seconds, remove it, let it stand for 40 seconds, and then pre-bake it at 60°C for 1 minute. Then immerse it again in nitrile latex liquid A for 10 seconds so that liquid A only covers the palm area, remove it, and then place the hand model in a microwave device for pre-foaming treatment for 35 seconds at a microwave power of 300W; Step 4: vulcanize the pre-foamed hand mold at 65° C. for 10 minutes, then heat to 110° C. for 2 minutes, then heat to 130° C. for 7 minutes, and then naturally cool and demould to obtain the cut-resistant and puncture-resistant protective gloves.

[0060] The pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1, a power of 0.8 W / cm², and a time of 5 minutes.

[0061] In step 2, the speed of vertically immersing the hand mold into the composite coating material is 8 cm / min, and the pulling speed is 4 cm / min.

[0062] The composite coating material is made of the following raw materials in parts by weight: 42 parts of silane-modified epoxy resin, 31 parts of methyltriethoxysilane, 8 parts of nano-silicon carbide, 1 part of graphene nanosheets, 15 parts of ethanol / water mixed solution, and 1 part of ethylene glycol butyl ether.

[0063] The preparation method of the composite coating material is as follows: S1: Bisphenol A epoxy resin E51 and KH550 were mixed uniformly at a mass ratio of 10:1, and the mixture was heated to 40°C for 3 hours to obtain a silane-modified epoxy resin. S2: Anhydrous ethanol and deionized water were prepared in a volume ratio of 7:3 to form an ethanol / water mixture. The pH of the mixture was adjusted to 4.5 with 0.1 M hydrochloric acid. Methyltriethoxysilane was then added thereto. The mixture was magnetically stirred at room temperature for 30 minutes to obtain a mixture A. S3: After mixing nano-silicon carbide and graphene nanosheets, mechanical ball milling was performed for 2 h at a speed of 300 rpm and a ball-to-material ratio of 5:1 to obtain SiC-graphene mixed powder; S4: adding SiC-graphene mixed powder to mixed solution A and ultrasonically dispersing for 30 min to obtain mixed solution B; S5: After heating the silane-modified epoxy resin obtained in S1 to 40° C., add the mixed solution B thereto, then add ethylene glycol butyl ether and stir magnetically for 30 minutes, then stand in the dark at room temperature for 90-95 minutes to obtain a composite coating material.

[0064] The nitrile latex liquid A in step 3 is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 30 parts of sulfur, 8 parts of zinc oxide, 2 parts of silicon carbide micropowder, 25 parts of sodium dodecylbenzenesulfonate, 5 parts of sodium polyacrylate, 8 parts of antioxidant 264, 10 parts of accelerator ZDC, and 1 part of nano-tungsten cesium oxide.

[0065] In step 3, the nitrile latex liquid B is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 25 parts of sulfur, 6 parts of zinc oxide, 9 parts of a composite foaming agent, 3 parts of hydroxymethyl ethyl cellulose, 6 parts of antioxidant RD, and 0.5 parts of a silicone defoaming agent; the composite foaming agent is composed of azodicarbonamide and sodium bicarbonate in a mass ratio of 1:1.

[0066] This comparative example is basically the same as Example 4, except that the sulfurization treatment step in step 4 does not include the infrared scanning partition sulfurization step.

[0067] Comparative Example 4 A process for preparing cut-resistant and puncture-resistant protective gloves comprises the following steps: Step 1: pretreating a fiber knitted glove body; the fiber knitted glove body is made of ultra-high molecular weight polyethylene fiber; Step 2: The pretreated glove body is placed in a mold and heated to 45°C for 30 minutes. The preheated glove mold is then vertically immersed in the composite coating material. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a nano-ceramic bridging layer. Step 3: respectively preparing nitrile latex liquid A and nitrile latex liquid B, and uniformly mixing the nitrile latex liquid A and the nitrile latex liquid B in a mass ratio of 1:1 to obtain a mixed latex; immersing the hand mold processed in step 2 in the mixed latex for 10 seconds and then removing it; and then placing the hand mold in a microwave device for pre-foaming treatment for 35 seconds at a microwave power of 300 W; Step 4: vulcanize the pre-foamed hand mold at 65°C for 10 minutes, heat it to 110°C for 2 minutes, and then heat it to 130°C for further vulcanization. At the same time, use near-infrared light to scan the palm area. The near-infrared light scanning wavelength is 808nm, the spot diameter is 20mm, and the spot scanning speed is 5mm / s. After vulcanization for 7 minutes, the hand mold is demoulded after natural cooling to obtain the cut-resistant and puncture-resistant protective gloves.

[0068] The pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1, a power of 0.8 W / cm², and a time of 5 minutes.

[0069] In step 2, the speed of vertically immersing the hand mold into the composite coating material is 8 cm / min, and the pulling speed is 4 cm / min.

[0070] The composite coating material is made of the following raw materials in parts by weight: 42 parts of silane-modified epoxy resin, 31 parts of methyltriethoxysilane, 8 parts of nano-silicon carbide, 1 part of graphene nanosheets, 15 parts of ethanol / water mixed solution, and 1 part of ethylene glycol butyl ether.

[0071] The preparation method of the composite coating material is as follows: S1: Bisphenol A epoxy resin E51 and KH550 were mixed uniformly at a mass ratio of 10:1, and the mixture was heated to 40°C for 3 hours to obtain a silane-modified epoxy resin. S2: Anhydrous ethanol and deionized water were prepared in a volume ratio of 7:3 to form an ethanol / water mixture. The pH of the mixture was adjusted to 4.5 with 0.1 M hydrochloric acid. Methyltriethoxysilane was then added thereto. The mixture was magnetically stirred at room temperature for 30 minutes to obtain a mixture A. S3: After mixing nano-silicon carbide and graphene nanosheets, mechanical ball milling was performed for 2 h at a speed of 300 rpm and a ball-to-material ratio of 5:1 to obtain SiC-graphene mixed powder; S4: adding SiC-graphene mixed powder to mixed solution A and ultrasonically dispersing for 30 min to obtain mixed solution B; S5: After heating the silane-modified epoxy resin obtained in S1 to 40° C., add the mixed solution B thereto, then add ethylene glycol butyl ether and stir magnetically for 30 minutes, then stand in the dark at room temperature for 90-95 minutes to obtain a composite coating material.

[0072] The nitrile latex liquid A in step 3 is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 30 parts of sulfur, 8 parts of zinc oxide, 2 parts of silicon carbide micropowder, 25 parts of sodium dodecylbenzenesulfonate, 5 parts of sodium polyacrylate, 8 parts of antioxidant 264, 10 parts of accelerator ZDC, and 1 part of nano-tungsten cesium oxide.

[0073] In step 3, the nitrile latex liquid B is prepared from the following raw materials in parts by weight: 500 parts of nitrile latex, 25 parts of sulfur, 6 parts of zinc oxide, 9 parts of a composite foaming agent, 3 parts of hydroxymethyl ethyl cellulose, 6 parts of antioxidant RD, and 0.5 parts of a silicone defoaming agent; the composite foaming agent is composed of azodicarbonamide and sodium bicarbonate in a mass ratio of 1:1.

[0074] This comparative example is basically the same as Example 4, with the only difference being that in step 3, the nitrile latex A and B liquids are mixed and impregnated as a whole.

[0075] Performance Testing The gloves prepared in Examples 1-4 of the present invention and Comparative Examples 1-4 were subjected to performance tests. Cut resistance, tear resistance, and puncture resistance were tested in accordance with GB 24541-2022, and air permeability was tested in accordance with GB / T 5453-1997. The specific test results are shown in Table 1.

[0076] Table 1 Performance test results As shown in Table 1, the gloves prepared in Examples 1-4 of the present invention all achieved a cut resistance of approximately 25N, achieving a cut resistance rating of Grade 5, and a puncture resistance exceeding 150N, significantly exceeding those of Comparative Examples 1-4. This demonstrates that the composite coating material (containing nano-silicon carbide and graphene) and the zoned impregnation + infrared vulcanization process of the present invention significantly enhance the protective performance of the gloves. The cut and puncture resistance of Comparative Example 1 significantly decreased, demonstrating that the nano-ceramic bridging layer plays a key role in improving the protective performance of the substrate. This is due to the silane-modified epoxy resin combined with the nano-silicon carbide / graphene coating, which forms a high-hardness, high-toughness ceramic protective layer on the fiber surface, significantly enhancing cut and puncture resistance. The back of the hand obtained in Comparative Example 2 exhibited low air permeability and significantly decreased tear resistance, indicating that the lack of a foamed buffer layer resulted in reduced glove flexibility. The cut and puncture resistance of Comparative Example 3 (without zoned infrared vulcanization) was significantly lower than that of Examples 1-4, demonstrating that zoned infrared vulcanization is crucial for strengthening the palm region, increasing crosslinking density and enhancing localized protective capabilities. Comparative Example 4 (mixed impregnation) exhibited inferior performance across all aspects compared to Examples 1-4, particularly in terms of air permeability and protective performance. This demonstrates the irreplaceable advantages of the zoned impregnation design, while mixed impregnation cannot simultaneously meet both protection and comfort requirements. The present invention utilizes a nano-ceramic bridging layer as a puncture-resistant matrix, impregnating the palm region with nitrile latex B+A to create a dual-layer structure that provides both flexible cushioning and rigid protection. Furthermore, infrared zoned vulcanization is employed for localized reinforcement, resolving the long-standing "high protection, low comfort" dilemma in the protective glove industry. The resulting protective gloves exhibit superior performance. The comparative example data demonstrates that the absence of any of these steps significantly degrades performance, demonstrating that each of the process steps is essential.

[0077] It should be noted that the above embodiments are only some of the preferred embodiments of the present invention, and not all of them. Obviously, based on the above embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

Claims

1. A process for preparing cut-resistant and puncture-resistant protective gloves, characterized in that: It includes the following steps: Step 1, pre-treating the fiber knitted glove body; Step 2: The pretreated glove body is placed in a mold and heated to 45°C for 30 minutes. The preheated glove mold is then vertically immersed in the composite coating material. After the dipping is completed, it is first placed in an oven at 80°C for curing for 5 minutes and then heated to 150°C for 2 minutes to form a nano-ceramic bridging layer. Step 3: Prepare nitrile latex liquid A and nitrile latex liquid B respectively, immerse the hand mold processed in step 2 in nitrile latex liquid B for 3-5 seconds, remove it, let it stand for 30-50 seconds, and then pre-bake it at 60°C for 1 minute. Then immerse it again in nitrile latex liquid A for 8-10 seconds so that liquid A only covers the palm area, remove it, and then place the hand mold in a microwave device for pre-foaming treatment for 30-45 seconds; Step 4: vulcanize the pre-foamed hand mold at 65°C for 10-15 minutes, then heat to 110°C for 2-3 minutes, and then heat to 130°C for further vulcanization. At the same time, use near-infrared light to scan the palm area, adjust the infrared scanning speed, and continue vulcanizing for 5-8 minutes. After natural cooling, demoulding is completed to obtain cut-resistant and puncture-resistant protective gloves.

2. The process for preparing the cut-resistant and puncture-resistant protective gloves according to claim 1, characterized in that: The pretreatment method in step 1 is: using a low-temperature plasma processor to perform argon / oxygen mixed plasma treatment at 60°C, with an argon / oxygen volume ratio of 4:1, a power of 0.8 W / cm², and a time of 5 minutes.

3. The preparation process of the cut-resistant and puncture-resistant protective gloves according to claim 1, characterized in that: In step 2, the speed of vertically immersing the hand mold into the composite coating material is 8 cm / min, and the pulling speed is 4 cm / min.

4. The process for preparing the cut-resistant and puncture-resistant protective gloves according to claim 1, characterized in that: The composite coating material is prepared from the following raw materials in parts by weight: 40-45 parts of silane-modified epoxy resin, 30-32 parts of methyltriethoxysilane, 8-10 parts of nano-silicon carbide, 1-2 parts of graphene nanosheets, 15-20 parts of ethanol / water mixture, and 1-2 parts of ethylene glycol butyl ether.

5. The process for preparing the cut-resistant and puncture-resistant protective gloves according to claim 3, characterized in that: The preparation method of the composite coating material is as follows: S1: Bisphenol A epoxy resin E51 and KH550 were mixed uniformly at a mass ratio of 10:1, and the mixture was heated to 40°C for 3 hours to obtain a silane-modified epoxy resin. S2: Prepare an ethanol / water mixture by mixing anhydrous ethanol and deionized water in a volume ratio of 7:

3. Adjust the pH of the mixture to 4.5 with 0.1M hydrochloric acid, and then add methyltriethoxysilane. The mixture was stirred magnetically for 30 min at room temperature to obtain a mixed solution A; S3: After mixing nano-silicon carbide and graphene nanosheets, mechanical ball milling was performed for 2 h at a speed of 300 rpm and a ball-to-material ratio of 5:1 to obtain SiC-graphene mixed powder; S4: adding SiC-graphene mixed powder to mixed solution A and ultrasonically dispersing for 30 min to obtain mixed solution B; S5: After heating the silane-modified epoxy resin obtained in S1 to 40° C., add the mixed solution B thereto, then add ethylene glycol butyl ether and stir magnetically for 30 minutes, then stand in the dark at room temperature for 90-95 minutes to obtain a composite coating material.

6. The process for preparing the cut-resistant and puncture-resistant protective gloves according to claim 1, characterized in that: The nitrile latex liquid A in step 3 is prepared from the following raw materials in parts by weight: 500-600 parts of nitrile latex, 15-35 parts of sulfur, 6-10 parts of zinc oxide, 2-3 parts of silicon carbide micropowder, 15-25 parts of sodium dodecylbenzenesulfonate, 3-5 parts of sodium polyacrylate, 6-10 parts of antioxidant 264, 8-15 parts of accelerator ZDC, and 1-2 parts of nano-tungsten cesium oxide.

7. The process for preparing the cut-resistant and puncture-resistant protective gloves according to claim 1, characterized in that: The nitrile latex liquid B in step 3 is prepared from the following raw materials in parts by weight: 300-500 parts of nitrile latex, 10-25 parts of sulfur, 5-8 parts of zinc oxide, 8-12 parts of a composite foaming agent, 3-5 parts of hydroxymethyl ethyl cellulose, 5-8 parts of an antioxidant RD, and 0.5-1.5 parts of a silicone defoaming agent; the composite foaming agent is composed of azodicarbonamide and sodium bicarbonate in a mass ratio of 1:

1.

8. The process for preparing the cut-resistant and puncture-resistant protective gloves according to claim 1, characterized in that: The fiber knitted glove body is made of one or more of ultra-high molecular weight polyethylene fiber and aramid fiber.

9. The process for preparing the cut-resistant and puncture-resistant protective gloves according to claim 1, characterized in that: In step 4, the near-infrared light scanning wavelength is 808 nm, the spot diameter is 20 mm, and the spot scanning speed is 5 mm / s.

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