CN113999440B - Manufacturing method of medical latex glove with high elasticity and breakage resistance - Google Patents
Manufacturing method of medical latex glove with high elasticity and breakage resistance Download PDFInfo
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- CN113999440B CN113999440B CN202111234584.5A CN202111234584A CN113999440B CN 113999440 B CN113999440 B CN 113999440B CN 202111234584 A CN202111234584 A CN 202111234584A CN 113999440 B CN113999440 B CN 113999440B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/02—Direct processing of dispersions, e.g. latex, to articles
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
- A41D19/0058—Three-dimensional gloves
- A41D19/0062—Three-dimensional gloves made of one layer of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0064—Producing wearing apparel
- B29D99/0067—Gloves
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2307/00—Characterised by the use of natural rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/02—Copolymers with acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2407/00—Characterised by the use of natural rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2409/02—Copolymers with acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2433/12—Homopolymers or copolymers of methyl methacrylate
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Gloves (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a manufacturing method of medical latex gloves with strong elasticity and breakage resistance, which comprises the following raw materials in parts by weight: 10-30 parts of nitrile rubber, 5-25 parts of natural rubber, 2-10 parts of wetting agent, 1-5 parts of dispersing agent, 3-9 parts of thickening agent, 2-8 parts of emulsifying agent, 4-10 parts of defoaming agent, 1-6 parts of toughening agent and 1-3 parts of coloring agent, wherein the wetting agent is prepared by mixing polypropylene and polystyrene with the proportion of 1-4:2-5, the proportion of the wetting agent is 2-4:3-5 fatty alcohol and ethylene oxide, and the proportion of the thickening agent is 1-5:2-4:1-3, namely monoethanolamine chloride, diethanolamine chloride and sodium sulfate, is prepared by mixing two rubber raw materials to prepare the latex, wherein the nitrile rubber is the basic raw material of the medical latex glove, and the natural rubber and the toughening agent are added on the basis of the nitrile rubber, so that the elasticity of the latex glove is greatly improved, various auxiliary agents are added, and the quality of the latex is improved.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a manufacturing method of medical latex gloves with strong elasticity and breakage resistance.
Background
Latex gloves are one type of glove, and unlike conventional gloves, are made of latex. Can be used in home, industry, medical treatment, beauty treatment and other industries, and is a necessary hand protection article. The natural latex is adopted, and the latex glove is processed by matching with other fine auxiliary agents, so that the product is subjected to special surface treatment, is comfortable to wear, and has wide application in industrial and agricultural production, medical treatment and daily life.
The medical latex glove is required to be kept in a stretched state for a long time when being worn by a surgical operation and a nurse in daily wearing, the elasticity and the breakage-proof effect of the latex glove in the prior art are poor, the discomfort of the hands of a wearer can be increased due to the poor elasticity effect, and doctors in the process of the operation are influenced, so that a manufacturing method of the medical latex glove with strong elasticity and breakage-proof is provided for solving the problems.
Disclosure of Invention
Based on the technical problems in the background technology, the invention provides a manufacturing method of medical latex gloves with strong elasticity and breakage resistance.
The invention provides a manufacturing method of medical latex gloves with strong elasticity and breakage resistance, which comprises the following raw materials in parts by weight: 10-30 parts of nitrile rubber, 5-25 parts of natural rubber, 2-10 parts of wetting agent, 1-5 parts of dispersing agent, 3-9 parts of thickening agent, 2-8 parts of emulsifying agent, 4-10 parts of defoaming agent, 1-6 parts of toughening agent and 1-3 parts of coloring agent;
the preparation method comprises the following steps:
s1: preparing raw materials, namely preparing the raw materials into latex;
s2: washing the mould, and washing the mould of the medical latex glove;
s3: immersing the ceramic die in calcium water;
s4: drying the mould, namely drying the mould immersed with calcium water;
s5: dipping latex, namely dipping the dried mould into latex solution of the medical latex glove, so that the surface of the ceramic mould is covered with a layer of latex to form the latex glove;
s6: hemming, namely hemming the opening of the latex glove by passing the latex glove formed on the die in the step S5 through a hemming device;
s7: drying the glove, namely drying the curled medical latex glove, and removing moisture on the surface of the medical latex glove;
s8: leaching, namely soaking the dried latex gloves in hot water and taking out;
s9: drying and vulcanizing;
s10: water-cooling, namely immersing the latex glove in the step S9 in cold water for cooling;
s11: and demolding, namely taking off the latex glove from the ceramic mold, and packaging the latex glove, so that the medical latex glove is produced.
Preferably, the wetting agent is prepared by mixing polypropylene and polystyrene, wherein the ratio of the alkyl sulfate to the fatty acid ester sulfate is 2-4:2-3, and the ratio of the dispersing agent is 1-4:2-5.
Preferably, the proportion of the thickener is 1-5:2-4:1-3 of monoethanolamine chloride, diethanolamine chloride and sodium sulfate, wherein the ratio of the emulsifier is 1-3:2-4 and sulfate.
Preferably, the defoamer is prepared by mixing silicone oil and phosphate with the ratio of 1-4:2-3, and the toughening agent is prepared by mixing methacrylic acid and methyl ester chlorinated polyethylene with the ratio of 2-6:3-5.
Preferably, raw materials in the step S1 are prepared by firstly putting nitrile rubber and natural rubber into smelting equipment for smelting, so that the two rubbers are compatible, then adding a dispersing agent, a thickening agent, an emulsifying agent, a defoaming agent, a toughening agent and a coloring agent, and selecting the coloring agent as required to prepare latex, wherein the continuous heat supply of the latex is maintained in the production process of the latex glove, so that the latex is prevented from being coagulated.
Preferably, the mold material in the step S2 is ceramic, the cleaning process is sequentially carried out by a soap water tank, a clean water tank, a bleaching agent tank and a clean water tank, four rows of rotating disc brushes are arranged on the clean water tank to brush two rows of ceramic molds, and the disc brushes can clean dirt between finger joints on the ceramic hand molds and then carry out the next operation.
Preferably, the step S5 is to insert the ceramic hand mould into the wetting agent before the step S, so that the latex glove is prevented from being adhered to the ceramic hand mould, the demolding is convenient, and meanwhile, the latex glove cannot be torn off during demolding, so that defective products are caused.
Preferably, the specific temperature of the drying and vulcanizing treatment in the step S9 is 150-200 ℃ and the pressure is controlled to be 5-15 megapascals.
Preferably, the continuous rotation speed of the hand mould at a constant speed is 80-120 rpm in the leaching process, so that the superfluous latex on the surface of the latex glove is thrown away, and the smoothness of the surface of the finished product of the latex glove is maintained.
The invention has the beneficial effects that: the wetting agent is smeared on the glove mould, so that the latex glove is prevented from being adhered to the ceramic hand mould, the demoulding is convenient, and meanwhile, the latex glove cannot be torn off during demoulding, so that defective products are caused;
by adding the dispersing agent into the latex, the dispersing agent has the function of reducing the time required by other auxiliary agents to complete the dispersing process and saving the time for preparing the latex;
the thickening agent is added into the latex, so that the viscosity of the latex can be improved, the latex can be kept in a uniform and stable suspension state or an emulsion state, and gel is formed on the glove mould;
the emulsifier is added into the emulsion, and is a substance which can enable mixed liquid of two or more than two mutually-insoluble components to form stable emulsion, so that two rubbers and other auxiliary agents are fully fused, and the functions of the auxiliary agents are exerted to support the emulsion;
by adding the defoaming agent into the latex, bubbles in the latex can be eliminated, the quality of the latex is improved, and the yield of the latex glove is indirectly increased;
the toughness of the latex glove prepared by adding the toughening agent into the latex can be increased, so that the elasticity of the latex glove is indirectly increased, and the wearing comfort of a wearer is improved;
the invention uses two rubber raw materials to prepare the latex, the nitrile rubber is the basic raw material of the medical latex glove, and the natural rubber and the toughening agent are added on the basis of the nitrile rubber, so that the elasticity of the latex glove is greatly increased, various auxiliary agents are added, and the quality of the latex is improved.
Drawings
Fig. 1 is a flow chart of a manufacturing method of the medical latex glove with strong elasticity and breakage resistance.
Detailed Description
The invention is further illustrated below in connection with specific embodiments.
Referring to fig. 1, embodiment one
The embodiment provides a manufacturing method of medical latex gloves with strong elasticity and breakage resistance, which comprises the following raw materials in parts by weight: 25 parts of nitrile rubber, 20 parts of natural rubber, 7 parts of wetting agent, 2 parts of dispersing agent, 4 parts of thickening agent, 6 parts of emulsifying agent, 6 parts of defoaming agent, 3 parts of toughening agent and 2 parts of coloring agent.
The method comprises the following steps:
s1: preparing raw materials, namely preparing the raw materials into latex, firstly putting nitrile rubber and natural rubber into smelting equipment for smelting to enable the two rubbers to be compatible, then adding a dispersing agent, a thickening agent, an emulsifying agent, a defoaming agent, a toughening agent and a coloring agent, wherein the coloring agent can be selected as required to prepare the latex, and the continuous heat supply to the latex is kept in the production process of the latex glove to prevent the latex from solidifying;
s2: the mold is washed, the mold of the medical latex glove is washed, the washing process is needed to pass through a soap water tank, a clean water tank, a bleaching agent tank and a clean water tank in sequence, meanwhile, four rows of rotating disc brushes are arranged on the clean water tank to brush two rows of ceramic molds, and the disc brushes can clean dirt between finger joints on the ceramic hand molds and then carry out the next operation;
s3: immersing the ceramic die in calcium water;
s4: drying the mould, namely drying the mould immersed with calcium water, inserting the ceramic mould into a wetting agent after drying, preventing the latex glove from being adhered to the ceramic hand mould, facilitating demoulding, and avoiding tearing the latex glove during demoulding to cause defective products;
s5: dipping latex, namely dipping the dried mould into latex solution of the medical latex glove, so that the surface of the ceramic mould is covered with a layer of latex to form the latex glove;
s6: hemming, namely hemming the opening of the latex glove by passing the latex glove formed on the die in the step S5 through a hemming device;
s7: drying the glove, namely drying the curled medical latex glove, and removing moisture on the surface of the medical latex glove;
s8: leaching, namely soaking the dried latex glove in hot water, taking out, and continuously rotating the glove mould at a constant speed of 90 revolutions per minute in the leaching process to throw off redundant latex on the surface of the latex glove so as to keep the smoothness of the surface of a finished product of the latex glove;
s9: drying and vulcanizing, wherein the specific temperature of the drying and vulcanizing treatment is 160 ℃, and the pressure is controlled to be 5-15 megapascals;
s10: water-cooling, namely immersing the latex glove in the step S9 in cold water for cooling;
s11: and demolding, namely taking off the latex glove from the ceramic mold, and packaging the latex glove, so that the medical latex glove is produced.
Referring to FIG. 1, embodiment II
The embodiment provides a manufacturing method of medical latex gloves with strong elasticity and breakage resistance, which comprises the following raw materials in parts by weight: 15 parts of nitrile rubber, 20 parts of natural rubber, 7 parts of wetting agent, 4 parts of dispersing agent, 6 parts of thickening agent, 4 parts of emulsifying agent, 5 parts of defoaming agent, 3 parts of toughening agent and 1 part of coloring agent.
The method comprises the following steps:
s1: preparing raw materials, namely preparing the raw materials into latex, firstly putting nitrile rubber and natural rubber into smelting equipment for smelting to enable the two rubbers to be compatible, then adding a dispersing agent, a thickening agent, an emulsifying agent, a defoaming agent, a toughening agent and a coloring agent, wherein the coloring agent can be selected as required to prepare the latex, and the continuous heat supply to the latex is kept in the production process of the latex glove to prevent the latex from solidifying;
s2: the mold is washed, the mold of the medical latex glove is washed, the washing process is needed to pass through a soap water tank, a clean water tank, a bleaching agent tank and a clean water tank in sequence, meanwhile, four rows of rotating disc brushes are arranged on the clean water tank to brush two rows of ceramic molds, and the disc brushes can clean dirt between finger joints on the ceramic hand molds and then carry out the next operation;
s3: immersing the ceramic die in calcium water;
s4: drying the mould, namely drying the mould immersed with calcium water, inserting the ceramic mould into a wetting agent after drying, preventing the latex glove from being adhered to the ceramic hand mould, facilitating demoulding, and avoiding tearing the latex glove during demoulding to cause defective products;
s5: dipping latex, namely dipping the dried mould into latex solution of the medical latex glove, so that the surface of the ceramic mould is covered with a layer of latex to form the latex glove;
s6: hemming, namely hemming the opening of the latex glove by passing the latex glove formed on the die in the step S5 through a hemming device;
s7: drying the glove, namely drying the curled medical latex glove, and removing moisture on the surface of the medical latex glove;
s8: leaching, namely soaking the dried latex glove in hot water, taking out, and continuously rotating the glove mould at a constant speed of 90 revolutions per minute in the leaching process to throw off redundant latex on the surface of the latex glove so as to keep the smoothness of the surface of a finished product of the latex glove;
s9: drying and vulcanizing, wherein the specific temperature of the drying and vulcanizing treatment is 170 ℃, and the pressure is controlled to be 5-15 megapascals;
s10: water-cooling, namely immersing the latex glove in the step S9 in cold water for cooling;
s11: and demolding, namely taking off the latex glove from the ceramic mold, and packaging the latex glove, so that the medical latex glove is produced.
Referring to fig. 1, embodiment three
The embodiment provides a manufacturing method of medical latex gloves with strong elasticity and breakage resistance, which comprises the following raw materials in parts by weight: 18 parts of nitrile rubber, 22 parts of natural rubber, 7 parts of wetting agent, 4 parts of dispersing agent, 5 parts of thickening agent, 3 parts of emulsifying agent, 7 parts of defoaming agent, 5 parts of toughening agent and 2 parts of coloring agent.
The method comprises the following steps:
s1: preparing raw materials, namely preparing the raw materials into latex, firstly putting nitrile rubber and natural rubber into smelting equipment for smelting to enable the two rubbers to be compatible, then adding a dispersing agent, a thickening agent, an emulsifying agent, a defoaming agent, a toughening agent and a coloring agent, wherein the coloring agent can be selected as required to prepare the latex, and the continuous heat supply to the latex is kept in the production process of the latex glove to prevent the latex from solidifying;
s2: the mold is washed, the mold of the medical latex glove is washed, the washing process is needed to pass through a soap water tank, a clean water tank, a bleaching agent tank and a clean water tank in sequence, meanwhile, four rows of rotating disc brushes are arranged on the clean water tank to brush two rows of ceramic molds, and the disc brushes can clean dirt between finger joints on the ceramic hand molds and then carry out the next operation;
s3: immersing the ceramic die in calcium water;
s4: drying the mould, namely drying the mould immersed with calcium water, inserting the ceramic mould into a wetting agent after drying, preventing the latex glove from being adhered to the ceramic hand mould, facilitating demoulding, and avoiding tearing the latex glove during demoulding to cause defective products;
s5: dipping latex, namely dipping the dried mould into latex solution of the medical latex glove, so that the surface of the ceramic mould is covered with a layer of latex to form the latex glove;
s6: hemming, namely hemming the opening of the latex glove by passing the latex glove formed on the die in the step S5 through a hemming device;
s7: drying the glove, namely drying the curled medical latex glove, and removing moisture on the surface of the medical latex glove;
s8: leaching, namely soaking the dried latex glove in hot water, taking out, and continuously rotating the glove mould at a constant speed of 110 revolutions per minute in the leaching process to throw off redundant latex on the surface of the latex glove so as to keep the smoothness of the surface of a finished product of the latex glove;
s9: drying and vulcanizing, wherein the specific temperature of the drying and vulcanizing treatment is 180 ℃, and the pressure is controlled to be 5-15 megapascals;
s10: water-cooling, namely immersing the latex glove in the step S9 in cold water for cooling;
s11: and demolding, namely taking off the latex glove from the ceramic mold, and packaging the latex glove, so that the medical latex glove is produced.
Referring to fig. 1, embodiment four
The embodiment provides a manufacturing method of medical latex gloves with strong elasticity and breakage resistance, which comprises the following raw materials in parts by weight: 23 parts of nitrile rubber, 18 parts of natural rubber, 7 parts of wetting agent, 4 parts of dispersing agent, 6 parts of thickening agent, 7 parts of emulsifying agent, 8 parts of defoaming agent, 2 parts of toughening agent and 2 parts of coloring agent.
The method comprises the following steps:
s1: preparing raw materials, namely preparing the raw materials into latex, firstly putting nitrile rubber and natural rubber into smelting equipment for smelting to enable the two rubbers to be compatible, then adding a dispersing agent, a thickening agent, an emulsifying agent, a defoaming agent, a toughening agent and a coloring agent, wherein the coloring agent can be selected as required to prepare the latex, and the continuous heat supply to the latex is kept in the production process of the latex glove to prevent the latex from solidifying;
s2: the mold is washed, the mold of the medical latex glove is washed, the washing process is needed to pass through a soap water tank, a clean water tank, a bleaching agent tank and a clean water tank in sequence, meanwhile, four rows of rotating disc brushes are arranged on the clean water tank to brush two rows of ceramic molds, and the disc brushes can clean dirt between finger joints on the ceramic hand molds and then carry out the next operation;
s3: immersing the ceramic die in calcium water;
s4: drying the mould, namely drying the mould immersed with calcium water, inserting the ceramic mould into a wetting agent after drying, preventing the latex glove from being adhered to the ceramic hand mould, facilitating demoulding, and avoiding tearing the latex glove during demoulding to cause defective products;
s5: dipping latex, namely dipping the dried mould into latex solution of the medical latex glove, so that the surface of the ceramic mould is covered with a layer of latex to form the latex glove;
s6: hemming, namely hemming the opening of the latex glove by passing the latex glove formed on the die in the step S5 through a hemming device;
s7: drying the glove, namely drying the curled medical latex glove, and removing moisture on the surface of the medical latex glove;
s8: leaching, namely soaking the dried latex glove in hot water, taking out, and continuously rotating the glove mould at a constant speed of 80 revolutions per minute in the leaching process to throw off redundant latex on the surface of the latex glove so as to keep the smoothness of the surface of a finished product of the latex glove;
s9: drying and vulcanizing, wherein the specific temperature of the drying and vulcanizing treatment is 200 ℃, and the pressure is controlled to be 5-15 megapascals;
s10: water-cooling, namely immersing the latex glove in the step S9 in cold water for cooling;
s11: and demolding, namely taking off the latex glove from the ceramic mold, and packaging the latex glove, so that the medical latex glove is produced.
Referring to fig. 1, embodiment five
The embodiment provides a manufacturing method of medical latex gloves with strong elasticity and breakage resistance, which comprises the following raw materials in parts by weight: 27 parts of nitrile rubber, 20 parts of natural rubber, 8 parts of wetting agent, 4 parts of dispersing agent, 5 parts of thickening agent, 7 parts of emulsifying agent, 6 parts of defoaming agent, 4 parts of toughening agent and 2 parts of coloring agent.
The method comprises the following steps:
s1: preparing raw materials, namely preparing the raw materials into latex, firstly putting nitrile rubber and natural rubber into smelting equipment for smelting to enable the two rubbers to be compatible, then adding a dispersing agent, a thickening agent, an emulsifying agent, a defoaming agent, a toughening agent and a coloring agent, wherein the coloring agent can be selected as required to prepare the latex, and the continuous heat supply to the latex is kept in the production process of the latex glove to prevent the latex from solidifying;
s2: the mold is washed, the mold of the medical latex glove is washed, the washing process is needed to pass through a soap water tank, a clean water tank, a bleaching agent tank and a clean water tank in sequence, meanwhile, four rows of rotating disc brushes are arranged on the clean water tank to brush two rows of ceramic molds, and the disc brushes can clean dirt between finger joints on the ceramic hand molds and then carry out the next operation;
s3: immersing the ceramic die in calcium water;
s4: drying the mould, namely drying the mould immersed with calcium water, inserting the ceramic mould into a wetting agent after drying, preventing the latex glove from being adhered to the ceramic hand mould, facilitating demoulding, and avoiding tearing the latex glove during demoulding to cause defective products;
s5: dipping latex, namely dipping the dried mould into latex solution of the medical latex glove, so that the surface of the ceramic mould is covered with a layer of latex to form the latex glove;
s6: hemming, namely hemming the opening of the latex glove by passing the latex glove formed on the die in the step S5 through a hemming device;
s7: drying the glove, namely drying the curled medical latex glove, and removing moisture on the surface of the medical latex glove;
s8: leaching, namely soaking the dried latex glove in hot water, taking out, and continuously rotating the glove mould at a constant speed of 90 revolutions per minute in the leaching process to throw off redundant latex on the surface of the latex glove so as to keep the smoothness of the surface of a finished product of the latex glove;
s9: drying and vulcanizing, wherein the specific temperature of the drying and vulcanizing treatment is 160 ℃, and the pressure is controlled to be 5-15 megapascals;
s10: water-cooling, namely immersing the latex glove in the step S9 in cold water for cooling;
s11: and demolding, namely taking off the latex glove from the ceramic mold, and packaging the latex glove, so that the medical latex glove is produced.
The following table is obtained for examples one to five, comparing conventional latex gloves with the latex gloves prepared for examples one to five:
as can be seen from the above table, the method for manufacturing the medical latex glove with strong elasticity and breakage resistance provided by the invention is obviously improved, and the fourth best embodiment is implemented.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The manufacturing method of the medical latex glove with strong elasticity and breakage resistance is characterized by comprising the following raw materials in parts by weight: 10-30 parts of nitrile rubber, 5-25 parts of natural rubber, 2-10 parts of wetting agent, 1-5 parts of dispersing agent, 3-9 parts of thickening agent, 2-8 parts of emulsifying agent, 4-10 parts of defoaming agent, 1-6 parts of toughening agent and 1-3 parts of coloring agent;
the preparation method comprises the following steps:
s1: preparing raw materials, namely preparing the raw materials into latex;
s2: washing the mould, and washing the mould of the medical latex glove;
s3: immersing the ceramic die in calcium water;
s4: drying the mould, namely drying the mould immersed with calcium water;
s5: dipping latex, namely dipping the dried mould into latex solution of the medical latex glove, so that the surface of the ceramic mould is covered with a layer of latex to form the latex glove;
s6: hemming, namely hemming the opening of the latex glove by passing the latex glove formed on the die in the step S5 through a hemming device;
s7: drying the glove, namely drying the curled medical latex glove, and removing moisture on the surface of the medical latex glove;
s8: leaching, namely soaking the dried latex gloves in hot water and taking out;
s9: drying and vulcanizing;
s10: water-cooling, namely immersing the latex glove in the step S9 in cold water for cooling;
s11: and demolding, namely taking off the latex glove from the ceramic mold, and packaging the latex glove, so that the medical latex glove is produced.
2. The method for manufacturing the medical latex glove with strong elasticity and breakage resistance according to claim 1, wherein the wetting agent is prepared by mixing polypropylene and polystyrene, wherein the ratio of the alkyl sulfate to the fatty acid ester sulfate is 2-4:2-3, and the ratio of the dispersing agent is 1-4:2-5.
3. The manufacturing method of the medical latex glove with strong elasticity and breakage resistance according to claim 1, wherein the proportion of the thickening agent is 1-5:2-4:1-3 of monoethanolamine chloride, diethanolamine chloride and sodium sulfate, wherein the ratio of the emulsifier is 1-3:2-4 and sulfate.
4. The manufacturing method of the medical latex glove with strong elasticity and breakage resistance according to claim 1, wherein the defoamer is prepared by mixing silicone oil and phosphate with a ratio of 1-4:2-3, and the toughening agent is prepared by mixing methacrylic acid and methyl ester chlorinated polyethylene with a ratio of 2-6:3-5.
5. The method for manufacturing the medical latex glove with strong elasticity and breakage resistance according to claim 1, wherein the raw materials in the step S1 are prepared by firstly putting the nitrile rubber and the natural rubber into smelting equipment to be smelted so that the two rubbers are compatible, then adding a dispersing agent, a thickening agent, an emulsifying agent, a defoaming agent, a toughening agent and a coloring agent, wherein the coloring agent can be selected according to the requirement to prepare the latex, and the continuous heat supply to the latex is kept in the production process of the latex glove to prevent the latex from solidifying.
6. The method for manufacturing the medical latex glove with strong elasticity and breakage resistance according to claim 1, wherein the mold material in the step S2 is made of ceramic, the cleaning process is sequentially carried out by a soap water tank, a clean water tank, a bleaching agent tank and a clean water tank, four rows of rotating disc brushes are arranged on the clean water tank to brush two rows of ceramic molds, and the disc brushes can clean dirt between finger joints on the ceramic hand molds and then carry out the next operation.
7. The method for manufacturing the medical latex glove with strong elasticity and breakage resistance according to claim 1, wherein the step S5 is characterized in that the ceramic hand mold is required to be inserted into the wetting agent before the step S5, so that the latex glove is prevented from being adhered to the ceramic hand mold, the latex glove is convenient to be demolded, and meanwhile, the latex glove cannot be torn off during the demolding, so that defective products are caused.
8. The method for manufacturing the medical latex glove with strong elasticity and breakage resistance according to claim 1, wherein the specific temperature of the drying and vulcanizing treatment in the step S9 is 150-200 ℃ and the pressure is controlled to be 5-15 megapascals.
9. The method for manufacturing the medical latex glove with strong elasticity and breakage resistance according to claim 1, wherein the continuous rotation speed of the hand mould at a constant speed is 80-120 revolutions per minute in the leaching process, redundant latex on the surface of the latex glove is thrown away, and the smoothness of the surface of a finished latex glove product is maintained.
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| JP3146413B2 (en) * | 1997-08-25 | 2001-03-19 | ハニー化成株式会社 | Method for producing rubber gloves with excellent adhesion |
| CN1903545A (en) * | 2006-08-03 | 2007-01-31 | 天津市格林科特高分子材料技术有限公司 | Method for producing functional gloves made of nitrile butadiene rubber |
| CN100513118C (en) * | 2006-12-15 | 2009-07-15 | 天津市格林科特高分子材料技术有限公司 | Method for fabricating one-off composite glove of nitrile butadiene rubber polyurethane and the use thereof |
| EP3213779A1 (en) * | 2016-03-01 | 2017-09-06 | Chemical Intelligence Limited | Medical examination gloves |
| CN106418819A (en) * | 2016-11-15 | 2017-02-22 | 中国工程物理研究院材料研究所 | Method for forming latex gloves without baking |
| CN106800665A (en) * | 2017-01-13 | 2017-06-06 | 山东星宇手套有限公司 | A kind of disposable butyronitrile diamond texture gloves and its preparation technology |
| CN109588804B (en) * | 2018-12-14 | 2020-11-27 | 中红普林（北京）医疗用品高新技术研究院有限公司 | Method for preparing allergy-free latex gloves |
| CN109796640A (en) * | 2019-01-25 | 2019-05-24 | 南通倍成劳护用品有限公司 | A kind of wear-resisting antiskid emgloves and preparation method thereof |
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