Method for manufacturing glove with high wear resistance and high non-slip soft coating

Abstract

To provide a method for manufacturing a glove with high wear resistance and high non-slip soft coating.SOLUTION: A bio-based organic polymer material is physically sprayed onto a surface of a glove core coated with impregnated latex, and the glove is subjected to pre-vulcanization and high-temperature vulcanization in this order. The glove is then washed with an alkaline solution, an acid solution, and water in this order, and dried to obtain a high wear resistant and high non-slip soft coated glove. An advantage of the invention is that a production process is simple and reliable, and the non-slip and wear-resistant properties of the coating are greatly improved. It also imparts a delicate sand-like texture to the coating, providing excellent slip resistance, durability, and comfort in both oily and dry environments.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the technical field of glove manufacturing, and particularly to a method for manufacturing gloves with a highly wear-resistant and highly slip-resistant soft coating.

Background Art

[0002] With the development of society, enterprises increasingly attach importance to the work safety of workers. Since production operations are carried out in oily and aqueous environments or dry environments, the requirements for grip and comfort during work are becoming increasingly high. Therefore, in the market, gloves with a highly slip-resistant and highly wear-resistant soft coating are strongly demanded. Currently, various products such as latex texture gloves, embossed gloves, washed gloves, and matte finish gloves are commercially available as such products. However, latex texture gloves / embossed gloves have excellent slip resistance but lack comfort in use, and it is necessary to use organic solvents with a pungent odor such as xylene during production, and the production process is not environmentally friendly. Washed gloves have excellent comfort, but their slip resistance and durability are average, and a large amount of wastewater is generated during production, resulting in extremely high production costs for sewage treatment.

Summary of the Invention

Problems to be Solved by the Invention

[0003] An object of the present invention is to provide a method for manufacturing gloves with a highly wear-resistant and highly slip-resistant soft coating, which has a simple and reliable production process, greatly improves the slip resistance performance and wear resistance performance of the coating, gives a delicate sand surface effect to the coating, and has extremely excellent slip resistance, durability, and comfort in oily and dry environments.

Means for Solving the Problems

[0004] The above technical object of the present invention is achieved by the following technical solutions.

[0005] A manufacturing method of gloves with a highly wear-resistant and highly slip-resistant soft coating, comprising: Physically spraying a bio-derived organic polymer material onto the surface of the core of gloves coated with impregnated latex, performing preliminary vulcanization and high-temperature vulcanization in sequence, then washing with an alkaline solution, an acid solution, and water in this order, and drying to obtain gloves with a highly wear-resistant and slip-resistant soft coating.

[0006] Preferably, the bio-derived organic polymer material is selected from one or a mixture of albumin, globulin, lint protein, and casein. The particle size of the bio-derived organic polymer material is less than 50 mesh, and the frequency of the spray fan is 10 Hz to 30 Hz.

[0007] Preferably, the preliminary vulcanization temperature is 70°C to 90°C, the preliminary vulcanization time is 90 min, the high-temperature vulcanization temperature is 110°C to 140°C, and the high-temperature vulcanization time is 90 min.

[0008] Preferably, the alkaline solution used for alkaline washing is either a NaOH solution or a KOH solution, the mass fraction of the alkaline solution is 1% to 5%, the alkaline washing time is 45 to 70 min, the acid solution used for acid washing is an acetic acid solution with a mass fraction of 1% to 5%, the acid washing time is 45 to 70 min, after acid washing, it is washed with water twice, the water washing time is 60 min, and the drying temperature is 90°C.

[0009] Preferably, the impregnated latex contains, by weight parts, 70 to 100 parts of nitrile latex, 15 to 20 parts of styrene-butadiene latex, 7 to 10 parts of aqueous PU, 0.5 to 0.8 parts of KOH, 1 to 2 parts of surfactant, 2 to 3 parts of foaming agent, 1 to 3 parts of sulfur, 2 to 4 parts of accelerator, 1 to 3 parts of zinc oxide, 1 to 3 parts of titanium dioxide, 3 to 5 parts of film-forming agent, 4 to 5 parts of anti-aging agent, 7 to 10 parts of cross-linking agent, 4 to 5 parts of bio-composite enzyme, 1 to 3 parts of black pigment, and 1 to 4 parts of thickener.

[0010] Preferably, the surfactant is any one selected from polyoxyethylene, polyoxypropylene, sodium tripolyphosphate or sodium sulfate; the foaming agent is any one selected from azo compounds, sulfonyl hydrazides or nitroso compounds; the accelerator is any one selected from thiazole accelerators, sulfenamide accelerators, thiuram accelerators, dithiocarbamate accelerators, guanidine accelerators or xanthate accelerators; the film-forming agent is any one selected from polymer resins, acrylic resins or nitrocellulose; the anti-aging agent is any one selected from amine-based anti-aging agents, phenolic anti-aging agents or heterocyclic anti-aging agents; the cross-linking agent is any one selected from phenolic resins, epoxy resins or polyvinyl alcohol; the biological complex enzyme is any one selected from enzyme amylase, protease, lipase, phytase, cellulase or glucanase; and the thickener is any one selected from sodium carboxymethyl cellulose, propylene glycol alginate, sodium starch glycolate, hydroxypropyl starch ether, sodium phosphate starch, acetylated phosphate cross-linked starch, phosphoric acid monoesterified phosphate cross-linked starch or hydroxypropylated phosphate cross-linked starch.

[0011] Preferably, the method for manufacturing the core of the glove coated with the impregnated latex specifically includes: Step S1 of mixing and stirring the raw materials of each component of the impregnated latex to obtain the impregnated latex; Step S2 of placing the core of the glove in a mold and preheating it at a treatment temperature of 50 to 80 °C; Step S3 of impregnating the core of the glove in the preheating process with a coagulant; After impregnating with the coagulant for 60S to 80S, impregnating with latex and spreading it on 1 to 4 sides, step S4; After the latex impregnation process is completed, proceeding to the latex spreading process and setting the spreading time of the latex to 50S to 80S, step S5.

[0012] Preferably, the coagulant is a mixed solution of acetic acid and methanol, and the volume fraction of the acetic acid in the mixed solution is 3% to 10%.

[0013] The present invention further provides gloves with a highly wear-resistant and highly slip-resistant soft coating manufactured by the above manufacturing method.

Effects of the Invention

[0014] As described above, the present invention has the following beneficial effects.

[0015] 1. The present invention can increase the friction force of the coating and at the same time increase the strength of the coating by using bio-derived organic polymer materials, namely albumin, globulin, linden protein, and casein. Since these bio-derived organic polymer materials have characteristics such as low density and high strength, they can be more uniformly dispersed on the surface of the coating in the spraying process. During the vulcanization treatment, the carbonylamine of the bio-derived polymer material and the carbonyl compound and amino compound in the impregnated latex material react more completely, the polymerization of the polymer becomes denser, and the physical properties such as the wear resistance and slip resistance of the coating are improved.

[0016] 2. In the biological polymer material of the present invention, the amino groups in the impregnated latex material react with the isocyanate groups to form urea-based compounds, and the reaction mechanism may be divided into two steps. The first step is that the amino groups attack the isocyano groups in the isocyanate to form an intermediate such as an amine. The second step is that the intermediate reacts with another isocyanate molecule to form a urea-based compound. The urea-based compound can effectively fill the gaps between rubber (coating) molecules, improve its wear resistance and tear resistance, and can also improve the heat resistance of the rubber, and improve its stability and elasticity under high-temperature environments. At the same time, the protein (keratin) in the biological organic polymer material remaining on the surface of the coating has very excellent compatibility, and is tightly bonded to the coating material by intermolecular forces during the coating process, greatly improving the wear resistance performance of the coating, and not causing any irritation to the skin.

[0017] 3. In the present invention, a cross-linking agent is used. The hydroxymethyl group undergoes an addition reaction with double bonds such as carboxyl groups in the rubber, thereby increasing the cross-linking strength of the rubber and obtaining better physical properties. The carboxyl group reacts with the functional group -N=C=N- (Carbodilite) on the impregnated substrate, thereby increasing the adhesion between the rubber and the impregnated substrate and enhancing the durability of the coating. The anti-aging agent forms a protective film on the surface of the rubber. The active component of the anti-aging agent can chemically react with oxygen molecules on the surface of the rubber to form a protective film. Since this protective film has very high antioxidant performance, it can prevent further erosion by oxygen molecules and delay the aging process of the rubber. The biological composite enzyme removes the unreacted biological organic polymer material remaining on the surface of the coating during production, leaving only a high-strength film layer on the surface of the coating, significantly enhancing the wear resistance performance of the coating.

Brief Description of the Drawings

[0018]

Figure 1

Embodiments for Carrying Out the Invention

[0019] Hereinafter, specific embodiments of the present invention will be further described with reference to the drawings, but this example does not limit the present invention.

[0020] Example 1 This example provides gloves with a highly wear-resistant and highly anti-slip soft coating, and its manufacturing method is as follows. In parts by weight, 70 parts of nitrile latex, 15 parts of styrene-butadiene latex, 10 parts of aqueous PU, 0.5 part of KOH, 1 part of polyoxyethylene as a surfactant, 2 parts of an azo compound as a foaming agent, 1 part of sulfur, 2 parts of a thiazole accelerator, 1 part of zinc oxide, 1 part of titanium dioxide, 3 parts of a polymer resin as a film-forming agent, 4 parts of an amine-based antioxidant, 7 parts of a phenolic resin as a crosslinking agent, 4 parts of enzyme amylase, 1 part of a black pigment, and 1 part of sodium carboxymethyl cellulose as a thickener are used as raw materials to prepare an impregnating latex S1. Place the glove core in a hand mold and perform a preheating process S2 at a treatment temperature of 50°C. In the preheating process, impregnate the glove core with a coagulant, which is a mixed solution of acetic acid and methanol, and the volume fraction of acetic acid in the mixed solution is 3% in the coagulant impregnation process S3. After impregnating with the coagulant for 60S, impregnate with latex and spread it on four sides in the latex impregnation process S4. After the latex impregnation process is completed, proceed to the latex spreading process, and set the spreading time of the latex to 50S in the latex spreading process S5. Physically spray albumin on the latex coating and set the frequency of the fan to 10Hz in the surface treatment process S6. Perform preliminary vulcanization at a temperature of 90°C and high-temperature vulcanization at a temperature of 110°C, and set the treatment time to 1.5h each in the preliminary vulcanization process and the vulcanization process S7. Wash with a 1% NaOH solution by mass for 70 min. After the alkali washing is completed, wash with a 1% acetic acid solution by mass for 70 min. After the acid washing is completed, wash twice with water, set the water washing time to 60 min, and dry at 90°C to obtain the gloves in the mold release S8.

[0021] Example 2 This example provides gloves with a high wear resistance and high anti-slip soft coating. The manufacturing method includes: In parts by weight, the raw materials include 70 parts of nitrile latex, 15 parts of styrene-butadiene latex, 10 parts of aqueous PU, 0.5 part of KOH, 1 part of polyoxyethylene as a surfactant, 2 parts of an azo compound as a foaming agent, 1 part of sulfur, 2 parts of a thiazole accelerator, 1 part of zinc oxide, 1 part of titanium dioxide, 3 parts of a polymer resin as a film-forming agent, 4 parts of an amine-based antioxidant, 7 parts of a phenolic resin as a cross-linking agent, 4 parts of enzyme amylase, 1 part of a black pigment, and 1 part of sodium carboxymethyl cellulose as a thickener. Preparation S1 of the impregnating latex; Placing the glove core in a hand mold and preheating it at a treatment temperature of 50°C, preheating step S2; Impregnating the glove core in the preheating step with a coagulant, where the coagulant is a mixed solution of acetic acid and methanol, and the volume fraction of acetic acid in the mixed solution is 3%, coagulant impregnation step S3; After impregnating with the coagulant for 60S, impregnating with latex and spreading it on four sides, latex impregnation step S4; After the latex impregnation step is completed, proceeding to the latex spreading step, with the spreading time of the latex being 50S, latex spreading step S5; Physically spraying albumin on the latex coating and setting the frequency of the fan to 15Hz, surface treatment step S6; Pre-vulcanizing at a temperature of 90°C and then high-temperature vulcanizing at a temperature of 110°C, with the treatment time being 1.5h each, pre-vulcanizing step and vulcanizing step S7; Alkaline washing with a 1% mass fraction NaOH solution for 70 min. After the alkaline washing is completed, acid washing with a 1% mass fraction acetic acid solution for 70 min. After the acid washing is completed, washing with water twice, with the water washing time being 60 min, and drying at 90°C to obtain the gloves, demolding S8.

[0022] Example 3 This example provides gloves with a high wear resistance and high anti-slip soft coating. The manufacturing method includes: In parts by weight, prepare an impregnating latex containing 70 parts of nitrile latex as a raw material, 15 parts of styrene-butadiene latex, 10 parts of aqueous PU, 0.5 part of KOH, 1 part of a surfactant polyoxyethylene, 2 parts of an azo compound as a foaming agent, 1 part of sulfur, 2 parts of a thiazole accelerator, 1 part of zinc oxide, 1 part of titanium dioxide, 3 parts of a polymer resin as a film-forming agent, 4 parts of an amine-based antioxidant, 7 parts of a phenolic resin as a crosslinking agent, 4 parts of enzyme amylase, 1 part of a black pigment, and 1 part of carboxymethyl cellulose sodium as a thickener, namely Preparation S1 of the impregnating latex; Place the glove core in a hand mold and perform a preheating process S2 of preheating at a treatment temperature of 50 °C; Impregnate the glove core in the preheating process with a coagulant, where the coagulant is a mixture of acetic acid and methanol, and the volume fraction of acetic acid in the mixture is 3%, namely the coagulant impregnation process S3; After impregnating with the coagulant for 60S, impregnate with latex and spread it on four sides, namely the latex impregnation process S4; After the latex impregnation process is completed, proceed to the latex spreading process, and set the spreading time of the latex to 50S, namely the latex spreading process S5; Physically spray albumin on the latex coating and set the frequency of the fan to 20Hz, namely the surface treatment process S6; Perform preliminary vulcanization at a temperature of 90 °C and high-temperature vulcanization at a temperature of 110 °C, and set the treatment time to 1.5h for each, namely the preliminary vulcanization process and the vulcanization process S7; Wash with a 1% NaOH solution by mass fraction for 70 min. After the alkali washing is completed, wash with a 1% acetic acid solution by mass fraction for 70 min. After the acid washing is completed, wash twice with water, set the water washing time to 60 min, and dry at 90 °C to obtain the gloves, namely the mold release S8.

[0023] Example 4 This example provides gloves with a high wear resistance and high anti-slip soft coating, and its manufacturing method is as follows: In the weight part, the preparation S1 of the impregnating latex containing 85 parts of nitrile latex, 18 parts of styrene-butadiene latex, 8 parts of aqueous PU, 0.7 part of KOH, 2 parts of polyoxypropylene as a surfactant, 3 parts of sulfonyl hydrazide as a foaming agent, 2 parts of sulfur, 3 parts of sulfenamide accelerator, 2 parts of zinc oxide, 2 parts of titanium dioxide, 4 parts of acrylic resin as a film-forming agent, 5 parts of phenolic antioxidant, 9 parts of epoxy resin as a cross-linking agent, 4 parts of protease, 2 parts of black pigment, and 3 parts of propylene glycol alginate as a thickener, A preheating step S2 of placing the core of the glove in a hand mold and preheating it at a treatment temperature of 50°C, An impregnating step S3 of impregnating the core of the glove in the preheating step with a coagulant, where the coagulant is a mixture of acetic acid and methanol, and the volume fraction of acetic acid in the mixture is 5%, After impregnating with the coagulant for 60S, an impregnating step S4 of impregnating with latex and spreading it on four sides, After the latex impregnating step is completed, proceeding to a latex spreading step S5 where the spreading time of the latex is 50S, A surface treatment step S6 of physically spraying albumin on the latex coating and setting the frequency of the fan to 25Hz, A preliminary vulcanization step and a vulcanization step S7 of pre-vulcanizing at 90°C and then high-temperature vulcanizing at 110°C, with the treatment time being 1.5h each, Alkaline washing with a 3% mass fraction NaOH solution for 60 min, after the alkaline washing is completed, acid washing with a 3% mass fraction acetic acid solution for 60 min, after the acid washing is completed, washing with water twice with the washing time being 60 min, and drying at 90°C to obtain the glove, including a mold release S8.

[0024] Example 5 This example provides a glove with a high wear resistance and high anti-slip soft coating, and its manufacturing method is as follows: In the weight part, the preparation S1 of the impregnating latex containing 85 parts of nitrile latex, 18 parts of styrene-butadiene latex, 8 parts of aqueous PU, 0.7 part of KOH, 2 parts of polyoxypropylene as a surfactant, 3 parts of sulfonyl hydrazide as a foaming agent, 2 parts of sulfur, 3 parts of sulfenamide accelerator, 2 parts of zinc oxide, 2 parts of titanium dioxide, 4 parts of acrylic resin as a film-forming agent, 5 parts of phenolic antioxidant, 9 parts of epoxy resin as a cross-linking agent, 4 parts of protease, 2 parts of black pigment, and 3 parts of propylene glycol alginate as a thickener, A preheating step S2 of placing the core of the glove in a hand mold and preheating it at a treatment temperature of 50°C, An impregnating step S3 of impregnating the core of the glove in the preheating step with a coagulant, where the coagulant is a mixture of acetic acid and methanol, and the volume fraction of acetic acid in the mixture is 5%, After impregnating with the coagulant for 60S, an impregnating step S4 of impregnating with latex and spreading it on four sides, After the latex impregnating step is completed, proceeding to a latex spreading step S5 where the spreading time of the latex is 50S, A surface treatment step S6 of physically spraying albumin on the latex coating and setting the frequency of the fan to 30Hz, A preliminary vulcanization step and a vulcanization step S7 of pre-vulcanizing at a temperature of 90°C and then high-temperature vulcanizing at a temperature of 110°C, with the treatment time being 1.5h for each, Alkaline washing with a 3% mass fraction NaOH solution for 60 min, after the alkaline washing is completed, acid washing with a 3% mass fraction acetic acid solution for 60 min, after the acid washing is completed, washing with water twice with a washing time of 60 min, drying at 90°C to obtain the glove, including a mold release S8.

[0025] Example 6 This example provides a glove with a high wear resistance and high anti-slip soft coating, and its manufacturing method is as follows: In the weight portion, prepare an impregnating latex containing 85 parts of nitrile latex, 18 parts of styrene-butadiene latex, 8 parts of aqueous PU, 0.7 part of KOH, 2 parts of polyoxypropylene as a surfactant, 3 parts of sulfonyl hydrazide as a foaming agent, 2 parts of sulfur, 3 parts of a sulfenamide accelerator, 2 parts of zinc oxide, 2 parts of titanium dioxide, 4 parts of an acrylic resin as a film-forming agent, 5 parts of a phenolic antioxidant, 9 parts of an epoxy resin as a crosslinking agent, 4 parts of protease, 2 parts of a black pigment, and 3 parts of propylene glycol alginate as a thickener, namely Preparation S1 of the impregnating latex; Place the glove core in a hand mold and perform a preheating process S2 of preheating at a treatment temperature of 50 °C; Impregnate the glove core in the preheating process with a coagulant, where the coagulant is a mixture of acetic acid and methanol, and the volume fraction of acetic acid in the mixture is 5%, namely the coagulant impregnation process S3; After impregnating with the coagulant for 60 s, impregnate with latex and spread it on four sides, namely the latex impregnation process S4; After the latex impregnation process is completed, proceed to the latex spreading process, and set the spreading time of the latex to 50 s, namely the latex spreading process S5; Physically spray globulin on the latex coating, and set the frequency of the fan to 30 Hz, namely the surface treatment process S6; Perform pre-vulcanization at a temperature of 90 °C and high-temperature vulcanization at a temperature of 110 °C, and set the treatment time to 1.5 h each, namely the pre-vulcanization process and the vulcanization process S7; Wash with a 3% mass fraction NaOH solution for 60 min. After the alkali washing is completed, wash with a 3% mass fraction acetic acid solution for 60 min. After the acid washing is completed, wash with water twice, set the water washing time to 60 min, and dry at 90 °C to obtain the glove, namely the mold release S8.

[0026] Example 7 This example provides a glove with a high wear resistance and high anti-slip soft coating, and its manufacturing method is as follows: In terms of parts by weight, the preparation S1 of the impregnating latex includes 100 parts of nitrile latex, 20 parts of styrene-butadiene latex, 10 parts of aqueous PU, 0.8 part of KOH, 2 parts of sodium tripolyphosphate as a surfactant, 3 parts of a nitroso compound as a foaming agent, 3 parts of sulfur, 4 parts of a dithiocarbamate accelerator, 3 parts of zinc oxide, 3 parts of titanium dioxide, 5 parts of nitrocellulose as a film-forming agent, 5 parts of a heterocyclic antioxidant, 10 parts of polyvinyl alcohol as a crosslinking agent, 5 parts of cellulase, 3 parts of a black pigment, and 4 parts of a phosphate monoesterified phosphate crosslinked starch as a thickening agent. A preheating step S2 in which the core of the glove is placed in a hand mold and preheated at a treatment temperature of 50°C. A coagulant impregnation step S3 in which the core of the glove in the preheating step is impregnated with a coagulant, the coagulant being a mixture of acetic acid and methanol, and the volume fraction of acetic acid in the mixture being 10%. After impregnating with the coagulant for 60S, a latex impregnation step S4 in which the latex is impregnated and spread on four sides. After the latex impregnation step is completed, it proceeds to a latex spreading step S5 in which the spreading time of the latex is 50S. A surface treatment step S6 in which lint protein is physically sprayed on the latex coating and the frequency of the fan is 30Hz. A preliminary vulcanization step and a vulcanization step S7 in which pre-vulcanization is carried out at 90°C and high-temperature vulcanization is carried out at 110°C, with the treatment times being 1.5h each. Alkaline washing is carried out with a 5% by mass NaOH solution for 45 min. After the alkaline washing is completed, acid washing is carried out with a 5% by mass acetic acid solution for 45 min. After the acid washing is completed, it is washed twice with water, the water washing time is 60 min, and it is dried at 90°C to obtain the glove, including a mold release S8.

[0027] Example 8 This example provides a glove with a high wear resistance and high anti-slip soft coating, and its manufacturing method is as follows. In parts by weight, 100 parts of nitrile latex, 20 parts of styrene-butadiene latex, 10 parts of aqueous PU, 0.8 part of KOH, 2 parts of surfactant sodium tripolyphosphate, 3 parts of nitrosamine compound as a foaming agent, 3 parts of sulfur, 4 parts of dithiocarbamate accelerator, 3 parts of zinc oxide, 3 parts of titanium dioxide, 5 parts of nitrocellulose as a film-forming agent, 5 parts of heterocyclic antioxidant, 10 parts of polyvinyl alcohol as a cross-linking agent, 5 parts of cellulase, 3 parts of black pigment, and 4 parts of phosphoric acid monoesterified phosphate cross-linked starch as a thickening agent are used to prepare impregnated latex S1, Place the glove core in a hand mold and perform preheating at a treatment temperature of 50°C in preheating step S2, Impregnate the glove core in the preheating step with a coagulant, where the coagulant is a mixture of acetic acid and methanol, and the volume fraction of acetic acid in the mixture is 10% in coagulant impregnation step S3, After impregnating with the coagulant for 60S, impregnate with latex and spread it on four sides in latex impregnation step S4, After the latex impregnation step is completed, proceed to the latex spreading step, and set the spreading time of the latex to 50S in latex spreading step S5, Physically spray casein onto the latex coating and set the frequency of the fan to 30Hz in surface treatment step S6, Perform preliminary vulcanization at a temperature of 90°C and high-temperature vulcanization at a temperature of 110°C, with the treatment time being 1.5h each in preliminary vulcanization step and vulcanization step S7, Wash with a 5% NaOH solution by mass for 45 min. After the alkali washing is completed, wash with a 5% acetic acid solution by mass for 45 min. After the acid washing is completed, wash twice with water, set the water washing time to 60 min, and dry at 90°C to obtain the glove in mold release S8.

[0028] Example 9 This example provides a glove with a highly wear-resistant and highly slip-resistant soft coating, and its manufacturing method is as follows: In terms of parts by weight, the impregnating latex contains 100 parts of nitrile latex, 20 parts of styrene-butadiene latex, 10 parts of aqueous PU, 0.8 part of KOH, 2 parts of sodium tripolyphosphate as a surfactant, 3 parts of a nitroso compound as a foaming agent, 3 parts of sulfur, 4 parts of a dithiocarbamate accelerator, 3 parts of zinc oxide, 3 parts of titanium dioxide, 5 parts of nitrocellulose as a film-forming agent, 5 parts of a heterocyclic antioxidant, 10 parts of polyvinyl alcohol as a crosslinking agent, 5 parts of cellulase, 3 parts of a black pigment, and 4 parts of a phosphoric acid monoesterified phosphoric acid crosslinked starch as a thickening agent. Preparation S1 of the impregnating latex, A preheating step S2 of placing the core of the glove in a hand mold and preheating it at a treatment temperature of 50 °C, An impregnating step S3 of impregnating the core of the glove in the preheating step with a coagulant, where the coagulant is a mixture of acetic acid and methanol, and the volume fraction of acetic acid in the mixture is 10%, After impregnating with the coagulant for 60 s, impregnating with latex and spreading it on four sides, latex impregnating step S4, After the latex impregnating step is completed, proceeding to the latex spreading step, and setting the spreading time of the latex to 50 s, latex spreading step S5, Physically spraying lint protein on the latex coating and setting the frequency of the fan to 30 Hz, surface treatment step S6, Pre-vulcanizing at a temperature of 90 °C and then high-temperature vulcanizing at a temperature of 110 °C, with the treatment times being 1.5 h each for the pre-vulcanizing step and the vulcanizing step S7, Alkaline washing with a 5% by mass NaOH solution for 45 min. After the alkaline washing is completed, acid washing with a 5% by mass acetic acid solution for 45 min. After the acid washing is completed, washing with water twice, with the water washing time being 60 min, and drying at 90 °C to obtain the glove, demolding S8.

[0029] Comparative Example 1 This comparative example provides a coated glove, and its manufacturing method is as follows: In the weight part, the impregnating latex is prepared with 70 parts of nitrile latex, 15 parts of styrene-butadiene latex, 10 parts of aqueous PU, 0.5 part of KOH, 1 part of polyoxyethylene as a surfactant, 2 parts of an azo compound as a foaming agent, 1 part of sulfur, 2 parts of a thiazole accelerator, 1 part of zinc oxide, 1 part of titanium dioxide, 3 parts of a polymer resin as a film-forming agent, 4 parts of an amine-based antioxidant, 7 parts of a phenolic resin as a crosslinking agent, 4 parts of enzyme amylase, 1 part of a black pigment, and 1 part of sodium carboxymethyl cellulose as a thickener, namely preparation step S1; A preheating step S2 in which the core of the glove is placed in a hand mold and preheated at a treatment temperature of 50 °C; A coagulant impregnation step S3 in which the core of the glove in the preheating step is impregnated with a coagulant, the coagulant being a mixture of acetic acid and methanol, and the volume fraction of acetic acid in the mixture being 3%; After impregnating with the coagulant for 60 s, a latex impregnation step S4 in which the latex is impregnated and spread on four sides; After the latex impregnation step is completed, a latex spreading step S5 is entered, and the spreading time of the latex is 50 s; A surface treatment step S6 in which industrial salt is sprayed on the latex coating and the frequency of the fan is 30 Hz; A preliminary vulcanization step and a vulcanization step S7 in which preliminary vulcanization is carried out at 90 °C and high-temperature vulcanization is carried out at 110 °C, and the treatment times are 1.5 h respectively; Alkaline washing is carried out with a 1% mass fraction NaOH solution for 70 min. After the alkaline washing is completed, acid washing is carried out with a 1% mass fraction acetic acid solution for 70 min. After the acid washing is completed, it is washed with water twice, the water washing time is 60 min, and it is dried at 90 °C to obtain the glove, namely the mold release step S8.

[0030] The anti-slip property of the glove is measured by the dry slip method, the weight is 1.5 kg, the standard unit (kgf) of the anti-slip property is used, and the test of the mechanical properties of the glove is measured by the European standard EN-388 test method.

[0031] Mechanical tests are carried out and analyzed for the above Examples 1-9 and Comparative Example 1, and the specific test results are shown in Table 1.

[0032]

Table 1

[0033] As can be seen from the above experimental data, the processing method according to the present invention can effectively produce a coating having high anti-slip properties and high wear resistance. As can be seen from the data, the more uniformly the bio-derived organic polymer material is sprayed, the higher the anti-slip performance and wear resistance performance of the glove. At the same time, when the frequency of the fan is 20 Hz, the performance of the coating sprayed with the bio-derived organic polymer material is completely superior to that of the coating sprayed with industrial salt.

[0034] As can be seen from FIG. 1, the coating produced by the process of the present invention has relatively uniform bubble pore diameters, and these uniform bubbles are like suction cups. When the rubber contacts the surface of an object, the rubber contacts the small protrusions on the surface of the object with a larger area, so that a greater adsorption effect can be achieved, forming a vacuum space under the action of atmospheric pressure, causing the suction cup to adhere closely to the object, greatly improving the adsorption force, and increasing the gripping force of the coating. In addition, the bio-composite enzyme in the formulation system of the present invention decomposes the excessive bio-derived polymer organic material on the coating during production, leaving only a high-strength film layer on the surface of the coating, and significantly enhancing the wear resistance performance of the coating.

[0035] The above content is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art can make various modifications and equivalent substitutions to the present invention within the essence and protection scope of the present invention, and these modifications and equivalent substitutions should belong to the protection scope of the technical solution of the present invention.

Claims

1. A method for manufacturing gloves with a highly wear-resistant and highly slip-resistant soft coating, comprising: physically spraying a bio-derived organic polymer material onto the surface of the core of a glove coated with impregnated latex, sequentially performing pre-vulcanization and high-temperature vulcanization, then washing with an alkaline solution, an acid solution, and water in this order, and drying to obtain gloves with a highly wear-resistant and highly slip-resistant soft coating. The method for manufacturing gloves with a highly wear-resistant and highly slip-resistant soft coating is characterized by the above steps.

2. The bio-derived organic polymer material is selected from one or a mixture of albumin, globulin, lint protein, and casein. The particle size of the bio-derived organic polymer material is less than 50 mesh, and the frequency of the spray fan is 10 Hz to 30 Hz. The method for manufacturing gloves with a highly wear-resistant and highly slip-resistant soft coating according to Claim 1 is characterized by the above features.

3. The pre-vulcanization temperature is 70°C to 90°C, the pre-vulcanization time is 90 min, the high-temperature vulcanization temperature is 110°C to 140°C, and the high-temperature vulcanization time is 90 min. The method for manufacturing gloves with a highly wear-resistant and highly slip-resistant soft coating according to Claim 1 is characterized by the above features.

4. The alkaline solution used for alkaline washing is selected from either a NaOH solution or a KOH solution. The mass fraction of the alkaline solution is 1% to 5%, and the alkaline washing time is 45 to 70 min. The acid solution used for acid washing is an acetic acid solution with a mass fraction of 1% to 5%, and the acid washing time is 45 to 70 min. After acid washing, it is washed with water twice, the water washing time is 60 min, and the drying temperature is 90°C. The method for manufacturing gloves with a highly wear-resistant and highly slip-resistant soft coating according to Claim 1 is characterized by the above features.

5. The impregnated latex, by weight, contains 70 to 100 parts of nitrile latex, 15 to 20 parts of styrene-butadiene latex, 7 to 10 parts of aqueous PU, 0.5 to 0.8 parts of KOH, 1 to 2 parts of surfactant, 2 to 3 parts of foaming agent, 1 to 3 parts of sulfur, 2 to 4 parts of accelerator, 1 to 3 parts of zinc oxide, 1 to 3 parts of titanium dioxide, 3 to 5 parts of film-forming agent, 4 to 5 parts of anti-aging agent, 7 to 10 parts of cross-linking agent, 4 to 5 parts of bio-composite enzyme, 1 to 3 parts of black pigment, and 1 to 4 parts of thickening agent. The method for manufacturing gloves with a highly wear-resistant and highly slip-resistant soft coating according to Claim 1 is characterized by the above features.

6. The surfactant is selected from any one of polyoxyethylene, polyoxypropylene, sodium tripolyphosphate or sodium sulfate; the foaming agent is selected from any one of azo compounds, sulfonyl hydrazides or nitroso compounds; the accelerator is selected from any one of thiazole accelerators, sulfenamide accelerators, thiuram accelerators, dithiocarbamate accelerators, guanidine accelerators or xanthate accelerators; the film-forming agent is selected from any one of polymer resins, acrylic resins or nitrocellulose; the anti-aging agent is selected from any one of amine-based anti-aging agents, phenol-based anti-aging agents or heterocyclic anti-aging agents; the cross-linking agent is selected from any one of phenol resins, epoxy resins or polyvinyl alcohol; the bio-composite enzyme is selected from any one of enzyme amylase, protease, lipase, phytase, cellulase or glucanase; and the thickener is selected from any one of sodium carboxymethyl cellulose, propylene glycol alginate, sodium starch glycolate, hydroxypropyl starch ether, sodium phosphate starch, acetylated phosphate cross-linked starch, monoesterified phosphate cross-linked starch or hydroxypropylated phosphate cross-linked starch. The method for manufacturing the glove with high wear resistance and high anti-slip property and soft coating according to claim 5 is characterized by the above.

7. The method for manufacturing the core of the glove coated with the impregnated latex specifically includes: Step S1 of mixing and stirring the raw materials of each component of the impregnated latex to obtain the impregnated latex; Step S2 of placing the core of the glove in a glove mold and pre-treating it at a treatment temperature of 50 to 80 °C; Step S3 of impregnating the core of the glove in the preheating process with a coagulant; After impregnating with the coagulant for 60S to 80S, impregnating with latex and spreading it on 1 to 4 surfaces, which is Step S4; After the latex impregnation process is completed, proceeding to the latex spreading process, and setting the spreading time of the latex to 50S to 80S, which is Step S5. The method for manufacturing the glove with high wear resistance and high anti-slip property and soft coating according to claim 1 is characterized by including the above steps.

8. The manufacturing method of the glove with high wear resistance and high anti-slip soft coating according to claim 7, wherein the coagulant is a mixed solution of acetic acid and methanol, and the volume fraction of the acetic acid in the mixed solution is 3% to 10%.

9. A glove with high wear resistance and high anti-slip soft coating manufactured by the manufacturing method according to any one of claims 1 to 8.

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