A multifunctional protective glove and its preparation method

Abstract

The present invention relates to a multifunctional protective glove and a preparation method thereof. The protective glove includes a glove body and an impregnated layer. The glove body includes a glove palm, a glove back, and a wrist part. The protective glove further includes a first nitrile latex layer or a neoprene latex layer and a second nitrile latex layer or a neoprene latex layer. Both the first impregnated layer and the second impregnated layer are impregnated to a position above the first phalanx of the entire glove palm and the glove back, and a non-impregnated area is left on the glove back. The first impregnated layer is a non-foamed smooth surface glue, and the second impregnated layer is a foamed glue, and a matte surface is formed on the outside of the second impregnated layer. A waterproof finishing film layer or an antibacterial and waterproof finishing film layer is further formed on the outermost layer of the glove body. The multifunctional protective glove is obtained through one-time impregnation, two-time impregnation, sanding treatment, and waterproof or antibacterial and waterproof finishing. The multifunctional protective glove prepared by this method has excellent properties such as breathable comfort, abrasion resistance, tear resistance, waterproof and oil resistance, and antibacterial property.

Description

Technical Field

[0001] The present invention belongs to the technical field of manufacturing safety protection products, and particularly relates to a multifunctional protective glove and a preparation method thereof. Background Art

[0002] Labor protection gloves are personal protection products that protect the hands from or reduce labor operation injuries. At present, labor protection gloves are divided into two categories: ordinary labor protection gloves and special function protection gloves. Most ordinary labor protection gloves are all-cotton thread gloves or nylon base thread gloves, without waterproof, oil-proof, and antibacterial functions. During use, problems such as snagging and thread shedding, decreased grip after being wetted with water or oil, difficulty in washing the all-cotton thread gloves after being stained with oil, and unpleasant odors after the nylon base thread gloves are sweaty due to insufficient breathability are likely to occur. With the improvement of people's living standards, the requirements for ordinary labor protection gloves are also getting higher and higher. Not only are the gloves required to have a low cost but also to have multiple functions.

[0003] In the prior art, a preparation method of double-layer rubber gloves has been disclosed. The double-layer rubber gloves are impregnated twice. The first time is impregnated with latex rubber latex, and the second layer is impregnated with nitrile rubber latex. After two dipping processes, they are then subjected to chlorination and demolding processes to obtain the finished product of the present invention. In the prior art, a preparation method of one-layer nitrile smooth and two-layer nitrile foamed gloves has also been disclosed. The gloves are first dipped in nitrile smooth glue, and then dipped in nitrile foamed glue for the second time. Subsequently, they are immersed in a coagulant, pre-dried, washed with water, and vulcanized to obtain the product. Although there are also double-layer dipped protective glove products as described in the above patents in the prior art, the existing double-layer dipped protective glove products still have deficiencies in multiple performance indicators such as breathability comfort, abrasion resistance, tear resistance, waterproof and oil-proof properties, and antibacterial properties, and are difficult to meet the use requirements in oil-water environments such as machine tool processing, mechanical maintenance, and pipeline maintenance. Summary of the Invention

[0004] Aiming at the deficiencies of the above prior art, the present invention provides a multifunctional protective glove with good breathability comfort, abrasion resistance, tear resistance, waterproof and oil-proof properties, and antibacterial properties and a preparation method thereof.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] On the one hand, an embodiment of the present invention provides a multifunctional protective glove, which includes a glove body and an impregnated layer. The glove body includes a glove palm surface, a glove back surface, and a wrist part. The characteristics are that it further includes:

[0007] A first impregnated layer, the first impregnated layer is a nitrile rubber latex layer or a chloroprene rubber latex layer, and the first impregnated layer is impregnated to a position above the first phalanx of the entire glove palm surface and the glove back surface;

[0008] The second dipping layer, the second dipping layer is a nitrile latex layer or a neoprene latex layer. The second dipping layer is dipped to a position above the entire palm surface of the glove and the first phalanx of the back of the glove. A matte surface is formed on the outside of the second dipping layer.

[0009] The first dipping layer is a non-foamed smooth surface glue, the second dipping layer is a foamed glue, and a non-dipped area is formed on the back of the glove;

[0010] A waterproof and / or antibacterial finishing film layer, and a waterproof and / or antibacterial finishing film layer is further formed on the outermost layer of the glove body.

[0011] Preferably, the first dipping layer is dipped to a position of 3 / 4 of the entire palm surface of the glove and the back of the glove, and the second dipping layer is dipped to a position of the first phalanx of the entire palm surface of the glove and the back of the glove.

[0012] Preferably, the non-dipped area formed on the back of the glove is an arc-shaped area extending to the wrist formed by the boundary of the first dipping layer.

[0013] Preferably, 4. The glove body is knitted with chemical fiber filaments and chemical fiber filament wrapped elastic filaments. The fineness of the chemical fiber filaments is 15-25 Tex, and the fineness of the chemical fiber filament wrapped elastic filaments is 7-17 Tex + 2-8 Tex; preferably, the glove body further includes antibacterial and deodorant yarns, and the fineness of the antibacterial and deodorant yarns is 5-30 Tex.

[0014] On the other hand, an embodiment of the present invention further provides a preparation method for the above-mentioned multifunctional protective glove, and the preparation method includes the following steps:

[0015] S1. First dipping, after preparing the first dipping glue, dip the glove body to form the first dipping layer;

[0016] S2. Second dipping, after preparing the second dipping glue, dip the glove body after the first dipping to form the second dipping layer;

[0017] S3. Sanding treatment, dip the glove body after two impregnations into a sanding treatment pool for sanding treatment;

[0018] S4. Waterproof and / or antibacterial finishing, prepare a waterproof finishing agent solution, an antibacterial finishing agent solution or a compound solution formed by an antibacterial finishing agent solution and a waterproof finishing agent solution, and soak the glove body after the sanding treatment into the waterproof finishing agent solution, the antibacterial finishing agent solution or the compound solution for waterproof and / or antibacterial finishing.

[0019] Preferably, in the step S1, the preparation method of the first dipping glue includes:

[0020] Stir and add into the nitrile latex a KOH solution accounting for 5 - 10 wt% of the nitrile latex with a concentration of 3 - 7 wt%, an aqueous polyurethane accounting for 6 - 10 wt% of the nitrile latex, a ball-milled abrasive fluid accounting for 5 - 8 wt% of the nitrile latex, and a surfactant accounting for 3 - 6 wt% of the nitrile latex. After stirring for a certain time, let it stand. After standing, add a thickener to make the viscosity of the thickened latex obtained be 3000 - 4500 MPA.S; or,

[0021] Add into the chloroprene latex a KOH solution accounting for 5 - 10 wt% of the chloroprene latex with a concentration of 3 - 7 wt%, an aqueous polyurethane accounting for 6 - 10 wt% of the chloroprene latex, a ball-milled abrasive fluid accounting for 5 - 8 wt% of the chloroprene latex, and a surfactant accounting for 3 - 6 wt% of the chloroprene latex. After stirring for a certain time, let it stand. After standing, add a thickener to make the viscosity of the thickened latex obtained be 3000 - 4500 MPA.S; Preferably, in this step S1, the surfactants are all selected from stearic acid, sodium dodecylbenzenesulfonate or potassium oleate.

[0022] Preferably, in the step S2, the method for preparing the second layer glue includes:

[0023] Stir and add into the nitrile latex a KOH solution accounting for 5 - 10 wt% of the nitrile latex with a concentration of 3 - 7 wt%, an aqueous polyurethane accounting for 6 - 8 wt% of the nitrile latex, and a ball-milled abrasive accounting for 5 - 6 wt% of the nitrile latex to form a raw glue material. After initial stirring, add a foaming agent and a foam stabilizer, then stir and foam to 1.2 - 1.5 times the volume of the raw glue material, and then add a thickener to make the viscosity of the thickened latex obtained be 2900 - 3900 MPA.S; or,

[0024] Stir and add into the chloroprene latex a flame retardant accounting for 10 - 15 wt% of the chloroprene latex, a KOH solution accounting for 8 - 10 wt% of the chloroprene latex with a concentration of 3 - 7 wt%, an aqueous polyurethane accounting for 6 - 8 wt% of the chloroprene latex, and a ball-milled abrasive accounting for 5 - 6 wt% of the chloroprene latex to form a raw glue material. After initial stirring, add a foaming agent and a foam stabilizer, then stir and foam to 1.2 - 1.5 times the volume of the raw glue material, and then add a thickener to make the viscosity of the thickened latex obtained be 2900 - 3900 MPA.S.

[0025] Preferably, in the preparation of the first coating adhesive and the second coating adhesive, the thickener is selected from any one of casein thickener, sodium polyacrylate thickener or sodium carboxymethyl cellulose thickener; preferably, in the preparation of the second coating adhesive, the foaming agent is selected from any one or a combination of two or more of sodium dodecylbenzenesulfonate, potassium oleate or Turkey red oil, and the foam stabilizer is selected from any one or a combination of two or more of succinamate, alkylolamide, polyacrylamide, dodecyldimethylamine oxide; more preferably, the dosage of the foaming agent accounts for 0.5-1.5 wt% of the nitrile latex or the chloroprene latex, and the dosage of the foam stabilizer accounts for 1-1.5 wt% of the nitrile latex or the chloroprene latex.

[0026] Preferably, in step S3, the sanding treatment step includes:

[0027] S31. Salt spraying treatment: Immerse the protective gloves after the second dip coating treatment into the mixed particulate matter treatment tank for 12-18 s before the second dip coating film formation. The mixed particulate matter treatment tank contains particulate matter of sodium sulfate and / or sodium chloride. The particulate matter of sodium sulfate and / or sodium chloride forms a spraying surface through a spraying device to treat the protective gloves, and a fine and uniform concave-convex sanding surface is formed on the outer rubber surface of the protective gloves. Preferably, the size of the particulate matter of sodium sulfate and / or sodium chloride is 40-70 mesh.

[0028] S32. Pre-vulcanization and spraying treatment: Send the protective gloves treated in step S31 into a vulcanization oven and dry them at a temperature of 75-105 °C for 20-40 min, and then rinse the free particulate matter on the surface of the protective gloves with sprayed water; preferably, the temperature of the sprayed water is 40-60 °C, and the spraying time is not less than 1 min.

[0029] S33. Soaking and vulcanization drying treatment: Soak the protective gloves treated in the spraying treatment step at room temperature for 30-60 min, and then perform vulcanization drying in a vulcanization oven. The vulcanization drying temperature is 85-115 °C, and the drying time is not less than 60 min.

[0030] Preferably, in step S4, the soaking is at room temperature, the soaking time is 10-30 min, and then dehydration and drying are carried out. The drying temperature is not lower than 100 °C, and the drying time is not less than 80 min;

[0031] The preparation of the waterproof finishing agent solution includes: adding 5-10 parts by weight of a C6 or C8 waterproof agent to 95-90 parts by weight of water and stirring for 10-30 min;

[0032] The preparation of the antibacterial finishing agent solution includes: adding 1-5 parts by weight of silver ion antibacterial agent, metal oxide antibacterial agent or organosilicone quaternary ammonium salt antibacterial agent into 99-95 parts by weight of water and stirring slowly for 10-30 min; the compound solution is the compound solution formed by the waterproof finishing agent solution and the antibacterial finishing solution.

[0033] Preferably, the components of the ball milling abrasive in the steps S1 and S2 include the following:

[0034] Sulfur 5-15 parts by weight

[0035] Zinc diisobutyldithiocarbamate 5-15 parts by weight

[0036] Zinc oxide 40-60 parts by weight

[0037] Titanium dioxide 20-40 parts by weight

[0038] Sodium dinaphthylmethanedisulfonate 3-8 parts by weight

[0039] Casein solution 5-15 parts by weight

[0040] Water 90-110 parts by weight;

[0041] Mix the above components and ball mill for more than 72 h to prepare the ball milling abrasive; preferably, the formula of the casein solution includes: 1.6-2 parts by weight of casein, 6-10 parts by weight of water, and 0.1-0.3 parts by weight of 5-10 wt% potassium hydroxide solution.

[0042] The beneficial technical effects that can be obtained by the present invention:

[0043] 1. The multifunctional protective glove of the present invention is prepared by two processes of dipping nitrile latex or neoprene latex, combined with a sanding process and a waterproof or antibacterial and waterproof post-finishing process. The first dipping is a smooth surface glue, the second is a foamed glue, and a sanded surface is formed outside the second foamed glue surface, and a non-dipped area is formed on the back of the glove. The multifunctional protective glove prepared by the method of the present invention has excellent air permeability and comfort, which is beneficial to the entry of air and the discharge of sweat, and at the same time can prevent water, oil or organic solvents from entering the glove body;

[0044] 2. After the foamed glue dipping in the second step of the present invention is sanded, a small, uniform and concave-convex sanded surface is formed outside the second glue layer. Since the second glue is a foamed glue and a sanded surface is formed outside, the protective glove has a softer hand feeling and better elasticity of the colloid, greatly improving the comfort of glove use. At the same time, the anti-slip effect and the gripping force of the protective glove are stronger, and it has good friction resistance;

[0045] 3. The multifunctional protective gloves prepared by the method of the present invention not only have the oil resistance and wear resistance of nitrile or neoprene rubber itself, but also have the functions of breathable comfort, friction resistance, tear resistance, waterproofing and antibacterial deodorization. Preferably, the glove body is made of antibacterial raw materials or antibacterial finishing, which solves the problem of odor of gloves after being contaminated with sweat. The multifunctional protective gloves are particularly suitable for use in oil-water environments such as machine tool processing, mechanical maintenance, and pipeline maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 FIG. is a schematic diagram of the glove palm surface of the multifunctional protective gloves provided by an embodiment of the present invention;

[0047] Figure 2 FIG. is a schematic diagram of the glove back surface of the multifunctional protective gloves provided by an embodiment of the present invention;

[0048] DESCRIPTION OF THE REFERENCE NUMERALS:

[0049] Glove palm surface 1, glove back surface 2, wrist part 3, first dipping layer 4, second dipping layer 5 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are some, but not all, of the preferred embodiments of the present application. These specific features, structures or characteristics in the embodiments can be combined in one or more embodiments in any suitable manner. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for the sake of clarity and conciseness, the description of known functions and structures is omitted in the embodiments.

[0051] Embodiment 1

[0052] As shown in the attached Figure 1-2 FIG., the present invention first provides a multifunctional protective glove, which includes a glove body and a dipping layer. The glove body further includes a glove palm surface 1, a glove back surface 2 and a wrist part 3. The protective glove also includes a first dipping layer 4 and a second dipping layer 5.

[0053] In one embodiment of the present invention, the first dipping layer is a nitrile latex layer, and the first dipping layer is dipped up to a position above the entire palm surface 1 of the glove and the first phalanx of the back surface 2 of the glove. The second dipping layer is a nitrile latex layer, and the second dipping layer is dipped up to a position above the entire palm surface 1 of the glove and the first phalanx of the back surface 2 of the glove. In another embodiment of the present invention, the first dipping layer 4 is a neoprene latex layer, and the first dipping layer is dipped up to a position above the entire palm surface 1 of the glove and the first phalanx of the back surface 2 of the glove. The second dipping layer 5 is a neoprene latex layer, and the second dipping layer is dipped up to a position above the entire palm surface 1 of the glove and the first phalanx of the back surface 2 of the glove. In other feasible embodiments, the above-mentioned first dipping layer 4 and second dipping layer 5 may also be different. For example, the first dipping layer is a nitrile latex layer, and the second dipping layer is a neoprene latex layer.

[0054] For the above-mentioned multifunctional protective glove of the present invention, the first dipping layer is a non-foamed smooth surface glue, the second dipping layer is a foamed glue, and a non-dipped area is formed on the back surface of the glove. A waterproof finishing film layer or an antibacterial and waterproof finishing film layer is further formed on the outermost layer of the glove body. A matte surface is formed on the outside of the second dipping layer. The multifunctional protective glove of the present invention has good air permeability and comfort. External air can sequentially pass through the second dipping layer with a matte surface, the first dipping layer with a smooth surface, the glove body and enter the surface layer of the hand skin. At the same time, the sweat on the hand can also sequentially pass through the glove body, the first dipping layer with a smooth surface and the second dipping layer with a matte surface and reach the external air. And water, oil or organic solvents, etc. can pass through the second dipping layer but cannot pass through the first dipping layer with a smooth surface at all. In addition, since the second dipping is a foamed glue and a matte surface is formed on the outside, the multifunctional protective glove has a softer feel and better elasticity of the colloid, greatly improving the comfort of using the glove. At the same time, the multifunctional protective glove of the present invention also has excellent abrasion resistance, tear resistance, waterproof and oil resistance, and antibacterial properties.

[0055] Refer to the appendix Figure 2 As shown, in the preferred embodiment of the present invention, the first dipping layer 4 of the above-mentioned multifunctional protective glove is dipped to a position of 3 / 4 of the entire palm surface and the back surface of the glove, and its second dipping layer 5 is dipped to a position of the first phalanx of the entire palm surface and the back surface of the glove. The area on the back surface 2 of the glove that is not dipped with the first dipping layer 4 is an arc-shaped area extending to the wrist formed by the boundary of the first dipping layer. In this way, the largest non-dipped area can be formed on the back of the hand, so that the multifunctional protective glove does not have a significant deterioration in air permeability after double dipping and still has good air permeability and comfort. Of course, the non-dipped area is not limited to the above-mentioned arc-shaped area, and the boundary and area of the non-dipped area can also be controlled according to product needs during the glove dipping process.

[0056] The body of the above-mentioned multi-functional protective gloves is knitted from chemical fiber filaments and chemical fiber filament-wrapped elastic filaments. The fineness of the chemical fiber filaments is selected to be 15-25 Tex. Exemplarily, it can be selected as 15.5 Tex, 16.6 Tex, 20 Tex, 25 Tex, etc. The fineness of the chemical fiber filament-wrapped elastic filament is 7-17 Tex + 2-8 Tex, that is, a wrapped filament formed by wrapping a 2-8 Tex elastic filament with a 7-17 Tex chemical fiber filament. The fineness of the chemical fiber filament for wrapping can be, for example, 7.7 Tex, 8.3 Tex, 15.5 Tex or 16.6 Tex, and the wrapped elastic filament can be 2.2 Tex, 4 Tex, 5.5 Tex or 7.7 Tex. In this embodiment, a 16.6 Tex chemical fiber filament and a 16.6 Tex + 5.5 Tex chemical fiber filament-wrapped elastic filament are used to directly weave the glove body by a glove knitting machine. Among them, the wrist part is in rib stitch, and the other parts are in plain stitch. The weft insertion yarn at the ribbed mouth of the glove wrist is an elastic covered yarn with a fineness of 100 # . The overlock thread used for the ring seam at the ribbed mouth of the glove wrist is a chemical fiber high-elastic filament with a fineness of 22.2 Tex × 5. As for the glove body, it is an existing product and can be woven by conventional processes, which will not be elaborated in this invention. In order to make the protective gloves have better antibacterial properties, in another preferred embodiment of the present invention, antibacterial and deodorizing yarns can be added to the yarn raw materials of the glove body. The antibacterial and deodorizing yarns can be 5-8.5 Tex silver ion filaments or 9.5-30 Tex bamboo fiber yarns.

[0057] Example 2

[0058] The present invention also provides a preparation method for the above-mentioned multi-functional protective gloves. After preparing the raw materials required for the glove body and the subsequent processes, the glove body is put on a hand mold and carried out according to the following method steps.

[0059] S1. First dipping. After preparing the first dipping glue, the glove body is subjected to first dipping to form a first dipping layer. In this embodiment, the first dipping layer is dipped to the position of 3 / 4 of the entire glove palm and the back of the glove, that is, based on 3.5 cm - 6.0 cm upward from the ribbed mouth of the back of the hand, and the boundary of the first dipping layer forms an arc area extending to the wrist part. After dipping, it is left standing for 15-25 min. Among them, the specific method for preparing the first dipping glue is as follows: Stir and add a 3 wt% KOH solution accounting for 5 wt% of the nitrile latex, 6 wt% of waterborne polyurethane accounting for 6 wt% of the nitrile latex, 5 wt% of ball mill abrasive fluid accounting for 5 wt% of the nitrile latex, and 3 wt% of stearic acid as a surfactant into the nitrile latex. After stirring for 2 h, it is left standing for 10 h. After standing, a casein thickener is added to make the viscosity of the thickened latex 3000 MPA.S. In this step, the formula of the ball mill abrasive used is as follows (parts by weight):

[0060] 5 parts of sulfur, 5 parts of zinc diisobutyldithiocarbamate, 40 parts of zinc oxide, 20 parts of titanium dioxide, 3 parts of dinaphthylmethane disulfonic acid sodium, 5 parts of casein solution, 90 parts of water;

[0061] Mix the above components and then ball mill for 72 h to prepare the ball milled material; among them, the formula of the casein solution in the above formula is: 1.6 parts by weight of casein, 6 parts by weight of water, and 0.1 part by weight of 5 wt% potassium hydroxide solution.

[0062] The formula of the casein thickener used in the first layer of glue in this embodiment is: 10 parts by weight of casein, 85 parts by weight of water, 1 part by weight of 5 wt% KOH solution; the preparation method is: add the weighed quantitative casein to water and stir, then slowly add the KOH solution and stir for 10 min to obtain it.

[0063] S2. Second dipping. After preparing the second layer of glue, dip the glove body after the first dipping to form the second dipping layer. In this embodiment, the second dipping makes the second dipping layer dip to the positions of the entire glove palm surface and the first phalanx of the glove back surface, that is, based on 2 cm to 4.5 cm below the middle fingertip of the back of the hand, and the reserved edge at the palm surface mouth is less than 2 cm, so that the first dipping layer is exposed. The specific preparation method of this second layer of glue is: stir and add 5 wt% of 3 wt% KOH solution, 6 wt% of waterborne polyurethane, and 5 wt% of the ball milled material based on the nitrile latex in the nitrile latex to form the original glue material. After initial stirring for 2 h, add 0.5 - 0.7 wt% of tallow oil foaming agent and 1 - 1.3 wt% of succinamate foam stabilizer, then stir and foam to 1.2 times the volume of the original glue material, and then add acrylic thickener to make the viscosity of the thickened latex 2900 MP.S.

[0064] In this step, the formula of the ball milled material used is as follows (parts by weight):

[0065] 5 parts of sulfur, 5 parts of zinc diisobutyldithiocarbamate, 40 parts of zinc oxide, 20 parts of titanium dioxide, 3 parts of dinaphthylmethane disulfonic acid sodium, 5 parts of casein solution, 90 parts of water;

[0066] Mix the above components and then ball mill for 72 h to prepare the ball milled material; among them, the formula of the casein solution in the above formula is: 1.6 parts by weight of casein, 6 parts by weight of water, and 0.1 part by weight of 5 wt% potassium hydroxide solution.

[0067] In this embodiment, the formula of the acrylic thickener used for the second layer of glue is: 30 parts by weight of acrylic acid, 60 parts by weight of water, and 35 parts by weight of a KOH solution with a concentration of 5 wt%; its preparation method is: add the weighed quantitative acrylic acid to water and stir, then slowly add it to the potassium hydroxide aqueous solution, and stir to obtain it.

[0068] S3. Sanding treatment: Immerse the glove body after two immersions into a sanding treatment pool for sanding treatment; the specific sanding treatment method includes:

[0069] S31. Salt spraying treatment: Immerse the protective glove after the second dip coating treatment into a mixed particulate treatment pool of sodium sulfate and sodium chloride with a mesh size of 40 for 12 s before the second dip coating film formation (within 1 min). Use a spraying device to make the mixed particulate matter of sodium sulfate and sodium chloride form a spraying surface to treat the protective glove, and form a fine and uniform concave-convex sanding surface on the outer rubber surface of the protective glove; in this step, the particulate matter of sodium sulfate and sodium chloride will react with the impregnated nitrile latex. Since the first dip coating layer has formed a film, no reaction occurs and it does not affect the effect of the first layer of rubber surface. However, since the second dip coating layer has just adhered to the first layer of rubber surface within 1 min and has not formed a film, a reaction will occur when it contacts the particulate matter, and a large number of particles will adhere to the surface of the second layer of glue. On the one hand, due to the spraying force, a large number of small holes will be formed on the surface of the second dip coating layer. On the other hand, part of the sodium sulfate and sodium chloride substances will dissolve in the water in the colloid.

[0070] S32. Pre-vulcanization and spraying treatment: Send the protective glove after being treated in step S31 into a vulcanization oven and dry it at a temperature of 75 °C for 40 min to dry the surface rubber surface. Then, use sprayed water at a temperature of 40 °C to spray and wash the free particulate matter on the surface of the protective glove for no less than 1 min to wash away the particulate matter on the surface of the glove dip coating layer;

[0071] S33. Soaking and vulcanization drying treatment: Soak the protective glove after the spraying treatment at room temperature for 30 min, and then perform vulcanization drying in a vulcanization oven at 85 °C for 80 min.

[0072] S4. Antibacterial and waterproof finishing: Prepare an antibacterial finishing agent solution and a waterproof finishing agent solution to form a compound solution. Immerse the glove body after being sanded in step S3 into the compound solution at room temperature for 10 min, then dehydrate it, and dry it at 100 °C for more than 95 min. Then, take the glove off the hand mold and place it according to the glove size. In this step, the preparation of the waterproof and antibacterial compound solution includes the following:

[0073] First, 5 parts by weight of a carbon 8 waterproofing agent is added to 95 parts by weight of water and stirred for 10 min to obtain a waterproofing finishing agent solution. Then, 1 part by weight of an organosilicon quaternary ammonium salt antibacterial agent is added to 95 parts by weight of water and slowly stirred for 20 min to obtain an antibacterial finishing agent solution. Finally, the waterproofing finishing agent solution and the antibacterial finishing solution are mixed to form a waterproof and antibacterial compound solution.

[0074] Example 3

[0075] The difference between this example and Example 2 is that in the preparation of the first adhesive, a KOH solution with a concentration of 5 wt% and accounting for 7 wt% of the nitrile rubber latex, an aqueous polyurethane accounting for 8 wt% of the nitrile rubber latex, a ball-milled abrasive fluid accounting for 6 wt% of the nitrile rubber latex, and sodium dodecylbenzenesulfonate accounting for 5 wt% of the nitrile rubber latex as a surfactant are stirred and added to the nitrile rubber latex. After stirring for 2.5 h, it is left standing for 11 h. After standing, a sodium carboxymethylcellulose thickener is added to make the viscosity of the thickened latex 3700 MPA·S. In this step, the formula of the ball-milled abrasive used is as follows (parts by weight):

[0076] 10 parts of sulfur, 10 parts of zinc diisobutyldithiocarbamate, 50 parts of zinc oxide, 30 parts of titanium dioxide, 5.5 parts of disodium dinaphthylmethanedisulfonate, 10 parts of casein solution, 100 parts of water;

[0077] After mixing the above components, they are ball-milled for 75 h to prepare the ball-milled abrasive; among them, the formula of the casein solution in the above formula is: 1.8 parts by weight of casein, 8 parts by weight of water, and 0.2 parts by weight of an 8 wt% potassium hydroxide solution.

[0078] In this example, the formula of the sodium carboxymethylcellulose thickener used in the first adhesive is: 2 parts by weight of sodium carboxymethylcellulose and 98 parts by weight of warm water at 50 °C; its preparation method is: the above sodium carboxymethylcellulose is slowly added to the warm water in a stirring manner, and after stirring for 2.5 h, it is left standing for 15 h to obtain.

[0079] In the preparation of the second adhesive, a KOH solution with a concentration of 5 wt% and accounting for 7 wt% of the nitrile rubber latex, an aqueous polyurethane accounting for 7 wt% of the nitrile rubber latex, and a ball-milled abrasive accounting for 5.5 wt% of the nitrile rubber latex are stirred and added to the nitrile rubber latex to form a raw adhesive material. After initial stirring for 2.5 h, 0.7 - 1.2 wt% of an oleic acid potassium foaming agent and 1 - 1.3 wt% of an alkylolamide foam stabilizer are added, and then it is stirred and foamed to 1.3 times the volume of the raw adhesive material. Then, a casein thickener is added to make the viscosity of the thickened latex 3400 MP·S.

[0080] In this step, the formula of the ball-milled abrasive used is as follows (parts by weight):

[0081] 10 parts of sulfur, 10 parts of zinc diisobutyldithiocarbamate, 50 parts of zinc oxide, 30 parts of titanium dioxide, 5.5 parts of disodium dinaphthylmethanedisulfonate, 10 parts of casein solution, 100 parts of water;

[0082] Mix the above components and then ball mill for 75 h to prepare the ball milled material; among them, the formula of the casein solution in the above formula is: 1.8 parts by weight of casein, 8 parts by weight of water, and 0.2 parts by weight of 8 wt% potassium hydroxide solution.

[0083] The formula of the casein thickener used in the second layer glue in this embodiment is: 13 parts by weight of casein, 88 parts by weight of water, 2 parts by weight of 8 wt% KOH solution; its preparation method is: add the weighed quantitative casein to water and stir, and then slowly add the KOH solution and stir for 13 min to obtain.

[0084] During the sanding process, immerse the protective gloves after the second layer dipping treatment into the particle treatment pool of sodium chloride with 55 meshes for 15 s before the second layer dipping film formation (within 1 min), and make the sodium chloride particles form a spraying surface through a spraying device to treat the protective gloves; then send the treated protective gloves into a vulcanization oven and dry at a temperature of 90 °C for 30 min to dry the surface rubber surface, and then use water sprayed at a temperature of 50 °C to spray and rinse the free particles on the surface of the protective gloves for not less than 1 min to wash off the particles on the dipping layer surface of the gloves; finally, soak the protective gloves after the spraying treatment at room temperature for 45 min, and then vulcanize and dry in a vulcanization oven at 100 °C for 65 min.

[0085] In the antibacterial and waterproof finishing method, prepare an antibacterial finishing agent solution and a waterproof finishing agent solution to form a compound solution, soak the glove body after the sanding treatment in step S3 into the compound solution at room temperature for 20 min, then dehydrate, and dry at 110 °C for 90 min, and then take the gloves off the hand mold and place them separately according to the glove size. In this step, the preparation of the waterproof and antibacterial compound solution includes the following:

[0086] First, add 8 parts by weight of carbon 8 waterproof agent to 92 parts by weight of water and stir for 20 min to prepare a waterproof finishing agent solution, then add 3 parts by weight of metal oxide antibacterial agent to 97 parts by weight of water and slowly stir for 20 min to prepare an antibacterial finishing agent solution, and finally mix the waterproof finishing agent solution and the antibacterial finishing solution to form a waterproof and antibacterial compound solution.

[0087] Example 4

[0088] This embodiment is different from Embodiment 2 in that the glove body of this embodiment contains 10 wt% of 8.3 Tex silver ion filaments; in addition, in the preparation of the first layer of glue, 10 wt% of a KOH solution with a concentration of 7 wt%, 10 wt% of waterborne polyurethane, 8 wt% of a ball-milled abrasive fluid, and 6 wt% of potassium oleate as a surfactant are stirred into the nitrile latex. After stirring for 3 h, it is left standing for 12 h. After standing, sodium carboxymethylcellulose thickener is added to make the viscosity of the thickened latex 4500 MPA·S. In this step, the formula of the ball-milled abrasive used is as follows (parts by weight):

[0089] 15 parts of sulfur, 15 parts of zinc diisobutyldithiocarbamate, 60 parts of zinc oxide, 40 parts of titanium dioxide, 8 parts of dinaphthylmethanedisulfonic acid sodium, 15 parts of casein solution, 110 parts of water;

[0090] The above components are mixed and ball-milled for 78 h to prepare the ball-milled abrasive; among them, the formula of the casein solution in the above formula is: 2 parts by weight of casein, 10 parts by weight of water, and 0.3 parts by weight of a 10 wt% potassium hydroxide solution.

[0091] The formula of the sodium carboxymethylcellulose thickener used in the first layer of glue in this embodiment is: 3 parts by weight of sodium carboxymethylcellulose and 100 parts by weight of warm water at 60 °C; its preparation method is: the above sodium carboxymethylcellulose is slowly added to the warm water in a stirring manner, and after stirring for 2 h, it is left standing for 18 h to obtain.

[0092] In the preparation of the second layer of glue, 10 wt% of a KOH solution with a concentration of 7 wt%, 8 wt% of waterborne polyurethane, and 6 wt% of the ball-milled abrasive are stirred into the nitrile latex to form a raw glue material. After initial stirring for 3 h, 1 - 1.5 wt% of potassium oleate foaming agent and 1.2 - 1.5 wt% of alkyl alcohol amide foam stabilizer are added, and then it is stirred and foamed to 1.5 times the volume of the raw glue material. Then, casein thickener is added to make the viscosity of the thickened latex 3900 MP·S.

[0093] In this step, the formula of the ball-milled abrasive used is as follows (parts by weight):

[0094] 15 parts of sulfur, 15 parts of zinc diisobutyldithiocarbamate, 60 parts of zinc oxide, 40 parts of titanium dioxide, 8 parts of dinaphthylmethanedisulfonic acid sodium, 15 parts of casein solution, 110 parts of water;

[0095] The above components are mixed and ball-milled for 78 h to prepare the ball-milled abrasive; among them, the formula of the casein solution in the above formula is: 2 parts by weight of casein, 10 parts by weight of water, and 0.3 parts by weight of a 10 wt% potassium hydroxide solution.

[0096] In this embodiment, the formula of the casein thickener used for the second coating is: 15 parts by weight of casein, 90 parts by weight of water, and 3 parts by weight of a 10wt% KOH solution; the preparation method is: adding the weighed quantitative casein to water and stirring, and then slowly adding the KOH solution and stirring for 15 minutes to obtain.

[0097] During the sanding process, the protective gloves after the second dip coating are immersed in a particulate treatment tank of sodium sulfate with a mesh size of 70 for 18 s before the second dip coating film formation (within 1 minute), and a jet device is used to make the sodium sulfate particles form a jet surface to treat the protective gloves; then the treated protective gloves are sent to a vulcanization oven and dried at a temperature of 105°C for 20 minutes to dry the surface rubber surface, and then the free particulate matter on the surface of the protective gloves is sprayed and rinsed with water at a temperature of 60°C for not less than 1 minute to wash off the particulate matter on the dip coating layer surface of the gloves; finally, the protective gloves after the spraying treatment are soaked at room temperature for 60 minutes, and then vulcanized and dried in a vulcanization oven at 115°C for 60 minutes.

[0098] Since the glove body contains antibacterial silver ion filaments, in this embodiment, only waterproof finishing is carried out in the post-treatment. First, 10 parts by weight of carbon 6 waterproofing agent is added to 90 parts by weight of water and stirred for 30 minutes to prepare a waterproof finishing agent solution. Then, the glove body after the sanding treatment in step S3 is soaked in this waterproof finishing agent solution at room temperature for 30 minutes, and then dehydrated and dried at 120°C for 80 minutes. Then, the gloves are taken off the hand mold and placed separately according to the glove size.

[0099] Example 5

[0100] The difference between this embodiment and Example 2 is that in the preparation of the first coating, a KOH solution with a concentration of 3wt% and accounting for 5wt% of the chloroprene latex, an aqueous polyurethane accounting for 6wt% of the chloroprene latex, a ball-milled abrasive fluid accounting for 5wt% of the chloroprene latex, and sodium dodecylbenzenesulfonate accounting for 3wt% of the chloroprene latex are stirred and added to the chloroprene latex as a surfactant, stirred for 2 hours and then left standing for 10 hours. After standing, a casein thickener is added to make the viscosity of the thickened latex 3000 MPA.S. In this step, the formula of the ball-milled abrasive used is as follows (parts by weight):

[0101] 5 parts of sulfur, 5 parts of zinc diisobutyldithiocarbamate, 40 parts of zinc oxide, 20 parts of titanium dioxide, 3 parts of disodium dinaphthylmethanedisulfonate, 5 parts of casein solution, 90 parts of water;

[0102] After mixing the above components, they are ball-milled for 72 hours to prepare the ball-milled abrasive; among them, the formula of the casein solution in the above formula is: 1.6 parts by weight of casein, 6 parts by weight of water, and 0.1 part by weight of a 5wt% potassium hydroxide solution.

[0103] In this embodiment, the formula of the casein thickener used for the first layer of glue is: 10 parts by weight of casein, 85 parts by weight of water, and 1 part by weight of a 5wt% KOH solution; the preparation method is: add the weighed quantitative casein to water and stir, then slowly add the KOH solution and stir for 10 min to obtain.

[0104] In the preparation of the second layer of glue, add 10wt% of a phosphorus-nitrogen flame retardant, 5wt% of a KOH solution with a concentration of 3wt%, 6wt% of a waterborne polyurethane, and 5wt% of a ball-milled material in the chloroprene latex and stir to form a raw glue material. After initially stirring for 2 h, add 0.5 - 0.8wt% of a sodium dodecylbenzenesulfonate foaming agent and 1 - 1.2wt% of a succinamate foam stabilizer, then stir and foam until the volume of the raw glue material becomes 1.2 times, and then add an acrylic thickener to make the viscosity of the thickened latex 2900 MP.S.

[0105] In this step, the formula of the ball-milled material used is as follows (parts by weight):

[0106] 5 parts of sulfur, 5 parts of zinc diisobutyldithiocarbamate, 40 parts of zinc oxide, 20 parts of titanium dioxide, 3 parts of disodium dinaphthylmethanedisulfonate, 5 parts of a casein solution, and 90 parts of water;

[0107] Mix the above components and ball-mill for 72 h to prepare the ball-milled material; among them, the formula of the casein solution in the above formula is: 1.6 parts by weight of casein, 6 parts by weight of water, and 0.1 part by weight of a 5wt% potassium hydroxide solution.

[0108] In this embodiment, the formula of the casein thickener used for the second layer of glue is: 30 parts by weight of acrylic acid, 60 parts by weight of water, and 35 parts by weight of a KOH solution with a concentration of 5wt%; the preparation method is: add the weighed quantitative acrylic acid to water and stir, then slowly add it to the aqueous potassium hydroxide solution and stir to obtain.

[0109] During the sanding process, the protective gloves after the second dipping treatment are immersed in a treatment tank of mixed particles of sodium chloride and sodium sulfate with a mesh size of 40 for 12 s before the second dipping film formation (within 1 min). A spraying device is used to make the mixed particles of sodium chloride and sodium sulfate form a spraying surface to treat the protective gloves. Then, the treated protective gloves are sent into a vulcanization oven and dried at a temperature of 75 °C for 40 min to dry the surface rubber layer. Then, spray water at a temperature of 40 °C is used to spray and wash the free particles on the surface of the protective gloves for no less than 1 min to wash off the particles on the dipping layer surface of the gloves. Finally, the protective gloves after the spraying treatment are soaked at room temperature for 30 min, and then vulcanized and dried in a vulcanization oven at 85 °C for 80 min.

[0110] In the antibacterial and waterproof finishing method, an antibacterial finishing agent solution and a waterproof finishing agent solution are prepared to form a compound solution. The glove body after the sanding treatment in step S3 is soaked in this compound solution at room temperature for 10 min, then dehydrated, and dried at 100 °C for 95 min. Then, the gloves are taken off the hand molds and placed separately according to the glove sizes. In this step, the preparation of the waterproof and antibacterial compound solution includes the following:

[0111] First, 5 parts by weight of carbon 6 waterproofing agent is added to 90 parts by weight of water and stirred for 10 min to obtain a waterproof finishing agent solution. Then, 1 part by weight of silver ion antibacterial agent is added to 95 parts by weight of water and slowly stirred for 10 min to obtain an antibacterial finishing agent solution. Finally, the waterproof finishing agent solution and the antibacterial finishing solution are mixed to form a waterproof and antibacterial compound solution.

[0112] Example 6

[0113] The difference between this example and Example 2 is that in the preparation of the first layer of glue, 7 wt% of a KOH solution with a concentration of 5 wt%, 8 wt% of aqueous polyurethane, 6 wt% of ball-milled abrasive fluid, and 5 wt% of sodium dodecylbenzenesulfonate as a surfactant are added to the chloroprene rubber latex under stirring. After stirring for 2.5 h, it is left standing for 11 h. After standing, sodium carboxymethyl cellulose thickener is added to make the viscosity of the thickened latex 3700 MPA.S. In this step, the formula of the ball-milled abrasive used is as follows (parts by weight):

[0114] 10 parts of sulfur, 10 parts of zinc diisobutyldithiocarbamate, 50 parts of zinc oxide, 30 parts of titanium dioxide, 5.5 parts of disodium dinaphthylmethanedisulfonate, 10 parts of casein solution, 100 parts of water;

[0115] The above components are mixed and ball-milled for 75 h to prepare the ball-milled abrasive; among them, the formula of the casein solution in the above formula is: 1.8 parts by weight of casein, 8 parts by weight of water, and 0.2 parts by weight of 8 wt% potassium hydroxide solution.

[0116] In this embodiment, the formula of the sodium carboxymethyl cellulose thickener used for the first layer of glue is: 2 parts by weight of sodium carboxymethyl cellulose and 98 parts by weight of warm water at 50°C; the preparation method is: slowly add the above-mentioned sodium carboxymethyl cellulose to the warm water in a stirring manner, and let it stand for 15 hours after stirring for 2.5 hours to obtain the product.

[0117] In the preparation of the second layer of glue, 12 wt% of aluminum hydroxide and magnesium hydroxide flame retardants, 7 wt% of a KOH solution with a concentration of 5 wt%, 7 wt% of waterborne polyurethane, and 5.5 wt% of ball milled materials are stirred and added to the chloroprene latex to form a raw rubber material. After initially stirring for 2.5 hours, 0.8 - 1.2 wt% of potassium oleate foaming agent and 1.1 - 1.3 wt% of alkyl alcohol amide foam stabilizer are added, and then it is stirred and foamed to 1.3 times the volume of the raw rubber material. Then, casein thickener is added to make the viscosity of the thickened latex 3400 MP.S.

[0118] In this step, the formula of the ball milled material used is as follows (parts by weight):

[0119] 10 parts of sulfur, 10 parts of zinc diisobutyldithiocarbamate, 50 parts of zinc oxide, 30 parts of titanium dioxide, 5.5 parts of disodium dinaphthylmethanedisulfonate, 10 parts of casein solution, and 100 parts of water;

[0120] Mix the above components and ball mill for 75 hours to prepare the ball milled material; among them, the formula of the casein solution in the above formula is: 1.8 parts by weight of casein, 8 parts by weight of water, and 0.2 parts by weight of 8 wt% potassium hydroxide solution.

[0121] In this embodiment, the formula of the casein thickener used for the second layer of glue is: 13 parts by weight of casein, 88 parts by weight of water, and 2 parts by weight of 8 wt% KOH solution; the preparation method is: add the weighed quantitative casein to water and stir, and then slowly add the KOH solution and stir for 13 minutes to obtain the product.

[0122] During the sanding process, the protective gloves after the second dipping treatment are immersed in a particulate matter treatment pool of sodium sulfate with a mesh size of 55 for 15 seconds within 1 minute before the second dipping film formation, and a spraying device is used to form a spraying surface of sodium sulfate particulate matter to treat the protective gloves; then the treated protective gloves are sent to a vulcanization oven at a temperature of 90°C and dried for 30 minutes to dry the surface rubber layer. Then, spray water at a temperature of 50°C is used to spray and rinse the free particulate matter on the surface of the protective gloves for not less than 1 minute to wash away the particulate matter on the dipping layer surface of the gloves; finally, the protective gloves after the spraying treatment are soaked at room temperature for 45 minutes, and then vulcanized and dried in a vulcanization oven at 100°C for 65 minutes.

[0123] In the antibacterial and waterproof finishing method, an antibacterial finishing agent solution and a waterproof finishing agent solution are prepared to form a compound solution. The glove body after being subjected to the sanding treatment in step S3 is soaked in this compound solution at room temperature for 20 minutes, then dehydrated, and dried at 110°C for 90 minutes. After that, the gloves are taken off the hand mold and placed separately according to the glove size. In this step, the preparation of the waterproof and antibacterial compound solution includes the following:

[0124] First, 8 parts by weight of C8 waterproof agent is added to 93 parts by weight of water and stirred for 20 minutes to obtain a waterproof finishing agent solution. Then, 3 parts by weight of metal oxide antibacterial agent is added to 97 parts by weight of water and slowly stirred for 20 minutes to obtain an antibacterial finishing agent solution. Finally, the waterproof finishing agent solution and the antibacterial finishing solution are mixed to form a waterproof and antibacterial compound solution.

[0125] Example 7

[0126] The difference between this example and Example 2 is that the glove body in this example contains 10wt% of 18.45Tex bamboo fiber yarn. In addition, in the preparation of the first layer of glue, 10wt% of a KOH solution with a concentration of 7wt%, 10wt% of waterborne polyurethane, 8wt% of ball-milled abrasive fluid, and 6wt% of potassium oleate as a surfactant are stirred into the chloroprene latex. After stirring for 3 hours, it is left to stand for 12 hours. After standing, sodium carboxymethyl cellulose thickener is added to make the viscosity of the thickened latex 4500 MPA·S. In this step, the formula of the ball-milled abrasive used is as follows (parts by weight):

[0127] Sulfur 15 parts, zinc diisobutyldithiocarbamate 15 parts, zinc oxide 60 parts, titanium dioxide 40 parts, sodium dinaphthylmethanedisulfonate 8 parts, casein solution 15 parts, water 110 parts;

[0128] The above components are mixed and ball-milled for 78 hours to prepare the ball-milled abrasive. Among them, the formula of the casein solution in the above formula is: casein 2 parts by weight, water 10 parts by weight, and 0.3 parts by weight of 10wt% potassium hydroxide solution.

[0129] The formula of the sodium carboxymethyl cellulose thickener used in the first layer of glue in this example is: sodium carboxymethyl cellulose 3 parts by weight, warm water at 60°C 100 parts by weight. The preparation method is: the above sodium carboxymethyl cellulose is slowly added to the warm water in a stirring manner, and after stirring for 2 hours, it is left to stand for 18 hours to obtain.

[0130] In the preparation of the second-layer glue, a phosphorus-based flame retardant accounting for 15 wt% of the chloroprene latex, a KOH solution with a concentration of 7 wt% accounting for 10 wt% of the chloroprene latex, a waterborne polyurethane accounting for 8 wt% of the chloroprene latex, and a ball-milling abrasive accounting for 6 wt% of the chloroprene latex are stirred and added into the chloroprene latex to form a raw glue material. After initial stirring for 3 h, a potassium oleate foaming agent accounting for 1.2 - 1.5 wt% and an alkyl alcohol amide foam stabilizer accounting for 1.3 - 1.5 wt% are added, and then it is stirred and foamed to 1.5 times the volume of the raw glue material. Then, a casein thickener is added to make the viscosity of the thickened latex 3900 MP.S.

[0131] In this step, the formula of the ball-milling abrasive used is as follows (parts by weight):

[0132] 15 parts of sulfur, 15 parts of zinc diisobutyldithiocarbamate, 60 parts of zinc oxide, 40 parts of titanium dioxide, 8 parts of disodium dinaphthylmethanedisulfonate, 15 parts of a casein solution, 110 parts of water;

[0133] After mixing the above components, they are ball-milled for 78 h to prepare the ball-milling abrasive; among them, the formula of the casein solution in the above formula is: 2 parts by weight of casein, 10 parts by weight of water, and 0.3 parts by weight of a 10 wt% potassium hydroxide solution.

[0134] In this embodiment, the formula of the casein thickener used for the second-layer glue is: 15 parts by weight of casein, 90 parts by weight of water, 3 parts by weight of a 10 wt% KOH solution; its preparation method is: adding the weighed quantitative casein to water and stirring, and then slowly adding the KOH solution and stirring for 15 min to obtain it.

[0135] During the sanding process, the protective gloves after the second-layer dipping treatment are immersed in a treatment tank of a mixture of sodium chloride and sodium sulfate with a mesh size of 70 for 18 s within 1 min before the second-layer dipping film formation, and a spraying device is used to make the mixture of sodium chloride and sodium sulfate form a spraying surface to treat the protective gloves; then the treated protective gloves are sent into a vulcanization oven and dried at a temperature of 105 °C for 20 min to dry the surface rubber surface, and then sprayed with water at a temperature of 60 °C for no less than 1 min to spray and wash the free particles on the surface of the protective gloves to wash off the particles on the dipping layer surface of the gloves; finally, the protective gloves after the spraying treatment are soaked at room temperature for 60 min, and then vulcanized and dried in a vulcanization oven at 115 °C for 60 min.

[0136] Due to the bamboo fiber yarn with antibacterial properties in the glove body, in this embodiment, only waterproof finishing is carried out. First, 10 parts by weight of carbon 8 waterproofing agent is added to 95 parts by weight of water and stirred for 30 minutes to obtain a waterproof finishing agent solution. Then, the glove body after being subjected to the sanding treatment in step S3 is soaked in this waterproof finishing agent solution at room temperature for 30 minutes, then dehydrated, and dried at 120 °C for 80 minutes. After that, the gloves are taken off the hand mold and placed separately according to the glove sizes.

[0137] For the spraying device used in step S3 of Embodiments 2-7, in the present invention, a plurality of vortex air pumps with a power of 5.5 KW, an air volume of 550 m 3 / h, and a wind pressure of 50 KPA are externally connected to the particulate treatment tank of sodium sulfate and / or sodium chloride to form a spraying device. The wind is blown into the bottom of the salt pond through a pipeline. The operating frequency of the motor of the air pump is controlled within 20 HZ to 55 HZ. The wind of the fan passes through small holes with a diameter of 0.1 - 0.13 mm evenly distributed at the bottom of the salt pond, so that the 40-70 mesh sodium sulfate and / or sodium chloride particles in the salt pond form a spraying surface. The glove is immersed in the spraying surface of the particles, and the particles impact the unformed second dipping layer, making the rubber surface form a fine and uniform concave-convex sanding surface. It should be noted here that the specific treatment device and method for forming a sanding surface by spraying particulate matter on the dipping layer are not limited to this, and existing rubber surface sanding treatment methods can also be used. Also, the power, air volume, wind pressure of the above-mentioned air pump and the frequency parameters of the air pump motor in this embodiment method are not limited to this, and those skilled in the art can select according to the actual dipping process and sanding treatment requirements.

[0138] The following provides the test results of the main performance of this multifunctional protective glove prepared by the method described in Embodiments 2-7 of the present invention as shown in the following table:

[0139] Table 1 Performance test results of the multifunctional protective glove produced by the method described in Embodiments 2-7

[0140]

[0141]

[0142] As can be seen from the above test results, the multifunctional protective gloves prepared by the present invention have performance indicators such as abrasion resistance, tear resistance, flexibility, grip strength, water resistance, oil resistance, acid and alkali corrosion resistance, aging resistance, tensile recovery, and antibacterial property all higher than the target values or the requirements of the test standards. The preparation process method of the present invention endows the multifunctional protective gloves with excellent comprehensive performance. It should also be noted here that in the preparation process of the multifunctional protective gloves of the present invention, a certain proportion of waterborne polyurethane is added to the first layer of glue, which increases the adhesion between the glue surface and the fabric; adding a certain proportion of waterborne polyurethane to the second layer of glue not only improves the overall wear resistance of the product, but also enhances the rubbing resistance of the product, reducing the dropping of small particles during the use of the gloves.

[0143] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multifunctional protective glove, comprising a glove body and a rubberized layer, wherein the glove body comprises a palm, a back and a wrist portion, and is characterized in that: Also includes: A first dipping layer, wherein the first dipping layer is a nitrile latex layer or a chloroprene latex layer, and the first dipping layer is dipped to the entire palm surface of the glove and above the position of the first knuckle bone on the back of the glove; a second dipping layer, the second dipping layer being a nitrile latex layer or a chloroprene latex layer, the second dipping layer being dipped to the entire palm surface of the glove and above the first knuckle bone on the back surface of the glove, the second dipping layer having a frosted surface formed on the outside; the frosted surface being formed by particles of sodium sulfate and / or sodium chloride adhering to the surface of the second dipping layer before forming a film; The first impregnated rubber layer is a non-foamed smooth rubber layer, the second impregnated rubber layer is a foamed rubber layer, and a non-impregnated rubber area is formed on the back of the glove. The non-impregnated rubber area is an arc-shaped area formed by the boundary of the first impregnated rubber layer and extending to the wrist. A waterproof and antibacterial finishing film layer is formed on the outermost layer of the glove body. The waterproof and antibacterial finishing film layer is formed by soaking in a waterproof and antibacterial compound solution; The glove body is knitted with chemical fiber filaments and chemical fiber filament-wrapped elastic yarns, the fineness of the chemical fiber filaments is 15-25Tex, and the fineness of the chemical fiber filament-wrapped elastic yarns is 7-17Tex+2-8Tex; The multifunctional protective gloves have an abrasion resistance of ≥8000 cycles and a tear resistance of ≥25N according to the GB 24541-2009 test method; a flexibility of ≥level 5 according to the GB / T 12624-2009 test method; a grip of ≥90% according to the GA 7-2004 test method; and a water resistance of ≥level 4 according to the GB / T 4745-2012 test method.

2. The multifunctional protective glove according to claim 1, characterized in that: The first dipping layer is dipped in glue to the entire palm surface of the glove and 3 / 4 of the back surface of the glove, and the second dipping layer is dipped in glue to the entire palm surface of the glove and the position of the first knuckle bone on the back surface of the glove.

3. The multifunctional protective gloves according to any one of claims 1-2, characterized in that: The glove body also includes antibacterial and deodorizing yarn, and the fineness of the antibacterial and deodorizing yarn is 5-30 Tex.

4. The method for preparing the multifunctional protective gloves according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1, dipping the glove body in the first layer of glue after preparing the first layer of glue to form the first dipping layer; The one-step glue preparation method comprises: A KOH solution with a concentration of 3 to 7 wt% accounting for 5 to 10 wt% of the nitrile latex, an aqueous polyurethane with a concentration of 6 to 10 wt% of the nitrile latex, a ball mill fluid with a concentration of 5 to 8 wt% of the nitrile latex, and a surfactant with a concentration of 3 to 6 wt% of the nitrile latex are added to the nitrile latex with stirring, and the mixture is allowed to stand for a certain period of time, and a thickener is added after standing to make the viscosity of the thickened latex obtained after thickening be 3000 to 4500 MPA.S; or Adding a KOH solution with a concentration of 3 to 7 wt% accounting for 5 to 10 wt% of the chloroprene latex, an aqueous polyurethane accounting for 6 to 10 wt% of the chloroprene latex, a ball mill fluid accounting for 5 to 8 wt% of the chloroprene latex, and a surfactant accounting for 3 to 6 wt% of the chloroprene latex to the chloroprene latex, stirring for a certain period of time and then standing, and then adding a thickener after standing to make the viscosity of the thickened latex obtained after thickening be 3000 to 4500 MPA.S; S2, second dipping: After preparing the second layer of glue, the glove body that has been dipped in the first layer of glue is dipped in the second layer of glue to form a second dipping layer. The second layer of glue preparation method includes: A KOH solution accounting for 5 to 10 wt% of the nitrile latex and having a concentration of 3 to 7 wt%, an aqueous polyurethane accounting for 6 to 8 wt% of the nitrile latex, and a ball mill material accounting for 5 to 6 wt% of the nitrile latex are added to the nitrile latex with stirring to form a raw rubber material, a foaming agent and a foam stabilizer are added after initial stirring, and then the mixture is stirred and foamed to 1.2 to 1.5 times the volume of the raw rubber material, and a thickener is added to make the viscosity of the thickened latex obtained after thickening be 2900 to 3900 MPA.S; or A flame retardant accounting for 10 to 15 wt% of the chloroprene latex, a KOH solution accounting for 8 to 10 wt% of the chloroprene latex and having a concentration of 3 to 7 wt%, an aqueous polyurethane accounting for 6 to 8 wt% of the chloroprene latex, and a ball mill material accounting for 5 to 6 wt% of the chloroprene latex are added to chloroprene latex with stirring to form a raw rubber material, a foaming agent and a foam stabilizer are added after initial stirring, and then the mixture is stirred and foamed to 1.2 to 1.5 times the volume of the raw rubber material, and a thickener is added to ensure that the viscosity of the thickened latex obtained after thickening is 2900 to 3900 MPA.S; S3, frosting treatment, immersing the glove body after the two dipping steps into a frosting treatment tank for frosting treatment; S4. Waterproof and / or antibacterial finishing: preparing a waterproof finishing agent liquid, an antibacterial finishing agent liquid, or a composite solution of an antibacterial finishing agent solution and a waterproof finishing agent solution, and immersing the frosted glove body in the waterproof finishing agent solution, the antibacterial finishing agent solution, or the composite solution for waterproofing and antibacterial finishing.

5. The method for preparing the multifunctional protective gloves according to claim 4, characterized in that: In step S1, the surfactant is selected from stearic acid, sodium dodecylbenzenesulfonate or potassium oleate.

6. The method for preparing the multifunctional protective gloves according to claim 4, characterized in that: In the preparation of the first and second glue layers, the thickeners are selected from any one of casein thickener, sodium polyacrylate thickener or sodium carboxymethyl cellulose thickener.

7. The method for preparing the multifunctional protective gloves according to claim 4, characterized in that: In the preparation of the second glue, the foaming agent is selected from one or any combination of two or more of sodium dodecylbenzenesulfonate, potassium oleate or Taiko oil, and the foam stabilizer is selected from one or any combination of two or more of succinamates, alkyl alcohol amides, polyacrylamide and dodecyl dimethylamine oxide.

8. The method for preparing the multifunctional protective gloves according to claim 7, characterized in that: The amount of the foaming agent used is 0.5-1.5 wt % of the nitrile latex or the chloroprene latex, and the amount of the foam stabilizer used is 1-1.5 wt % of the nitrile latex or the chloroprene latex.

9. The method for preparing the multifunctional protective gloves according to any one of claims 4 to 8, characterized in that: In step S3, the sand grinding step includes: S31, salt spray treatment, immersing the protective gloves after the second dipping treatment in a mixed particle treatment tank for 12 to 18 seconds before the second dipping film is formed, wherein the mixed particle treatment tank contains sodium sulfate and / or sodium chloride particles. The sodium sulfate and / or sodium chloride particles are sprayed onto the protective gloves through a spray device, thereby forming a fine and uniform concave and convex frosted surface on the outer rubber surface of the protective gloves; S32, pre-vulcanization and spraying treatment, sending the protective gloves treated in step S31 into a vulcanization oven at a temperature of 75 to 105° C. for 20 to 40 minutes, and then using spray water to rinse the free particles on the surface of the protective gloves; S33, soaking and vulcanization drying treatment, soaking the protective gloves after the spraying treatment at room temperature for 30-60 minutes, and then vulcanizing and drying them in a vulcanization oven. The vulcanization and drying temperature is 85-115° C., and the drying time is not less than 60 minutes.

10. The method for preparing the multifunctional protective gloves according to claim 9, characterized in that: In step S31, the particle size of the sodium sulfate and / or sodium chloride is 40-70 mesh; in step S32, the temperature of the spray water is 40-60°C, and the spraying time is not less than 1 minute.

11. The method for preparing the multifunctional protective gloves according to any one of claims 4 to 8, characterized in that: In step S4, the soaking is performed at room temperature for 10 to 30 minutes, followed by dehydration and drying, wherein the drying temperature is not less than 100° C. and the drying time is not less than 80 minutes; The preparation of the waterproof finishing agent solution comprises: adding 5-10 parts by weight of carbon 6 or carbon 8 waterproofing agent to 95-90 parts by weight of water and stirring for 10-30 minutes; The preparation of the antibacterial finishing agent solution includes: adding 1 to 5 parts by weight of a silver ion antibacterial agent, a metal oxide antibacterial agent or an organosilicon quaternary ammonium salt antibacterial agent to 99 to 95 parts by weight of water and slowly stirring for 10 to 30 minutes; the composite solution is a composite solution formed by the waterproof finishing agent solution and the antibacterial finishing liquid.

12. The method for preparing the multifunctional protective gloves according to claim 4, characterized in that: The components of the ball mill described in steps S1 and S2 include the following: 5-15 parts by weight of sulfur 5-15 parts by weight of zinc diisobutyldithiocarbamate 40-60 parts by weight of zinc oxide 20-40 parts by weight of titanium dioxide 3-8 parts by weight of sodium dinaphthylmethane disulfonate 5-15 parts by weight of casein solution 90-110 parts by weight of water; The above components are mixed and ball-milled for more than 72 hours to obtain the ball-milled material.

13. The method for preparing the multifunctional protective gloves according to claim 12, characterized in that: The formula of the casein solution comprises: 1.6-2 parts by weight of casein, 6-10 parts by weight of water and 0.1-0.3 parts by weight of 5-10wt% potassium hydroxide solution.

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