CN111820511A - Rubber gloves with cool feeling and preparation method thereof - Google Patents
Rubber gloves with cool feeling and preparation method thereof Download PDFInfo
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- CN111820511A CN111820511A CN202010841546.5A CN202010841546A CN111820511A CN 111820511 A CN111820511 A CN 111820511A CN 202010841546 A CN202010841546 A CN 202010841546A CN 111820511 A CN111820511 A CN 111820511A
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/015—Protective gloves
- A41D19/01529—Protective gloves with thermal or fire protection
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
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Abstract
The invention provides a pair of rubber gloves with cool feeling and a preparation method thereof, belonging to the technical field of protective rubber gloves. According to the invention, the latex emulsion is firstly used for forming the rubber coating to be used as the outer surface of the glove, the aluminum powder is added into the latex emulsion to obtain the inner coating, and the inner coating contains the aluminum powder which has high heat-conducting property, so that the heat inside the glove can be conducted out by a wearer, and the wearer can feel cool and comfortable. The results of the examples show that the temperature of the entire infrared ray test was decreased by 2.9 ℃ at the maximum, compared with the temperature of the hands wearing the conventional rubber glove, 20 minutes after the wearer wears the rubber glove having a cool feeling according to the present invention.
Description
Technical Field
The invention relates to the technical field of protective rubber gloves, in particular to a rubber glove with a cooling feeling and a preparation method thereof.
Background
The protective gloves are used for protecting hands of workers from physical, chemical and biological factors in labor, are used for isolating bacteria and virus infection, dirt adhesion and corrosion of toxic substances and the like, have the advantages of disposable use, convenience in use and the like, and are well received by wearers. Meanwhile, the protective gloves have various types, and besides chemical resistance, the protective gloves have various functions of cutting resistance, electric insulation, water resistance, cold resistance, heat radiation resistance, fire resistance, flame retardance and the like,
gloves made of rubber materials have the protection performance of splashing resistance, water resistance, chemical resistance and the like, and the existing protective rubber gloves have the waterproof and airtight performance in order to realize good protection effect. When the wearer uses the mask for a long time or in hot, hot climates, the wearer feels the hands particularly hot, sweaty and uncomfortable.
Disclosure of Invention
In view of the above, the present invention aims to provide a rubber glove with a cool feeling and a preparation method thereof. The gloves prepared by the preparation method provided by the invention can conduct heat inside the gloves out, and bring cool and comfortable feeling to wearers.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of a rubber glove with a cool feeling, which comprises the following steps:
soaking the hand mold with a flocculating agent and then drying to obtain a flocculating agent-attached hand mold;
carrying out first dipping on the flocculant-attached hand model in the latex emulsion, and obtaining a primary dipping glove after the first dipping is carried out;
carrying out second dipping on the primary dipping gloves in the aluminum powder-containing latex emulsion, and obtaining secondary dipping gloves after second leveling, wherein the aluminum powder-containing latex emulsion comprises butyronitrile latex emulsion and aluminum powder;
and (3) sequentially carrying out pre-drying, vulcanization and reverse demolding on the secondary impregnated gloves to obtain the cool rubber gloves.
Preferably, the particle size of the aluminum powder is 1-5 μm.
Preferably, the mass of the aluminum powder is 5-20% of the mass of the aluminum powder-containing latex emulsion.
Preferably, the aluminum powder-containing latex emulsion further comprises an acrylic emulsion and/or a polyurethane emulsion.
Preferably, the latex emulsion comprises a nitrile latex emulsion, a sulfur dispersion, a zinc oxide dispersion, and a vulcanization accelerator dispersion.
Preferably, the mass ratio of the sulfur dispersion liquid to the zinc oxide dispersion liquid to the vulcanization accelerator dispersion liquid is 1-1.5: 1-3: 1-2.
Preferably, the first dipping time is 90-120 s, and the thickness is 0.3-0.5 mm; the second dipping time is 10-30 s, and the thickness is 0.35-0.45 mm.
Preferably, the pre-drying temperature is 60-100 ℃, the time is 5-15 min, and the vulcanizing temperature is 100-120 ℃, and the time is 20-50 min.
The invention also provides the rubber gloves with cool feeling prepared by the preparation method in the technical scheme, which comprise an aluminum powder latex inner layer and a pure latex outer layer.
The invention provides a preparation method of a rubber glove with a cool feeling, which comprises the following steps: soaking the hand mold with a flocculating agent and then drying to obtain a flocculating agent-attached hand mold; carrying out first dipping on the flocculant-attached hand model in the latex emulsion, and leveling to obtain a primary dipping glove; carrying out second dipping on the primary dipping gloves in the aluminum powder-containing latex emulsion, and leveling to obtain secondary dipping gloves, wherein the aluminum powder-containing latex emulsion comprises latex emulsion and aluminum powder; and (3) sequentially pre-drying, vulcanizing and demolding the secondary impregnated gloves to obtain the cool rubber gloves. According to the invention, the latex emulsion is firstly used for forming the rubber coating to be used as the outer surface of the glove, the aluminum powder-containing latex emulsion is used for obtaining the inner coating, the inner coating contains aluminum powder, and the aluminum powder has higher heat conductivity, so that the heat inside the glove can be conducted out by a wearer, the glove brings cool and comfortable feeling to the wearer, the glove does not feel stuffy when being worn, and the wearing experience of the wearer is greatly improved. The results of the examples show that the infrared test bulk temperature drops by up to 2.9 ℃ after the wearer wears the rubber glove with a cool feeling for 20 minutes compared to the hand temperature when wearing a conventional rubber glove.
Detailed Description
The invention provides a preparation method of a rubber glove with a cool feeling, which comprises the following steps:
soaking the hand mold with a flocculating agent and then drying to obtain a flocculating agent-attached hand mold;
carrying out first dipping on the flocculant-attached hand model in the latex emulsion, and obtaining a primary dipping glove after the first dipping is carried out;
carrying out second dipping on the primary dipping gloves in the aluminum powder-containing latex emulsion, and obtaining secondary dipping gloves after second leveling, wherein the aluminum powder-containing latex emulsion comprises butyronitrile latex emulsion and aluminum powder;
and (3) sequentially carrying out pre-drying, vulcanization and reverse demolding on the secondary impregnated gloves to obtain the cool rubber gloves.
The present invention provides latex emulsions. In the present invention, the latex emulsion preferably includes a nitrile latex emulsion, a sulfur dispersion, a zinc oxide dispersion, and a vulcanization accelerator dispersion; the solid content of the butyronitrile latex emulsion is preferably 40-50%, and the mass content of acrylonitrile units in the butyronitrile latex emulsion is preferably 30-35%. The source of the latex emulsion is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used. In the present invention, the latex emulsion is used as a main raw material for manufacturing gloves.
In the present invention, the mass content of the sulfur dispersion in the latex emulsion is preferably 1 to 1.5%, and more preferably 1.2%.
In the present invention, the mass content of the zinc oxide dispersion in the latex emulsion is preferably 1 to 3%, and more preferably 2%.
In the present invention, the vulcanization accelerator dispersion is preferably a zinc diethyldithiocarbamate dispersion, and the mass content of the vulcanization accelerator dispersion in the latex emulsion is preferably 1 to 2%, and more preferably 1.5%.
In the present invention, the preparation method of the latex emulsion preferably comprises the steps of: and mixing the butyronitrile latex emulsion, the sulfur dispersion liquid, the zinc oxide dispersion liquid and the vulcanization accelerator dispersion liquid to obtain the latex emulsion.
In the invention, the rotation speed of the mixing is preferably 150-250 r/min, more preferably 200r/min, and the time is preferably 1.5-2.5 h.
The invention provides an aluminum powder-containing latex emulsion which comprises a butyronitrile latex emulsion and aluminum powder. In the invention, the solid content of the butyronitrile latex emulsion is preferably 40-50%, the butyronitrile latex emulsion preferably comprises butadiene and acrylonitrile, and the mass content of the acrylonitrile in the butyronitrile latex emulsion is 30-35%. In the invention, the aluminum powder is preferably superfine aluminum powder, and the particle size of the superfine aluminum powder is preferably 1-5 μm, and more preferably 2-3 μm; the aluminum powder in the aluminum powder-containing latex emulsion is preferably 5-20% by mass, more preferably 8-16% by mass, and most preferably 12% by mass. The source of the aluminum powder is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used. In the invention, the aluminum powder has good heat-conducting property, so that the heat inside the glove is conducted out by a wearer, and the wearer is provided with cool and comfortable feeling, so that the wearer does not feel sultry when the glove is worn, and the wearing experience of the wearer is improved.
In the present invention, the method for preparing the aluminum powder-containing latex emulsion preferably comprises the following steps: and mixing the butyronitrile latex emulsion with aluminum powder to obtain the aluminum powder-containing latex emulsion. In the invention, the rotation speed of the mixing is preferably 100-300 rpm; the mixing time is preferably 1.5-2.5 h, and the mixing is preferably carried out in a low-speed disperser.
In the present invention, the aluminum powder-containing latex emulsion preferably further includes an acrylic emulsion and/or a polyurethane emulsion. In the invention, the solid content of the acrylic emulsion is preferably 30-50%, and the solid content of the polyurethane emulsion is preferably 10-20%; the mass of the acrylic emulsion is preferably 10-40% of that of the aluminum powder-containing emulsion; the mass of the polyurethane emulsion is preferably 10-40% of that of the aluminum powder-containing emulsion; when the aluminum powder-containing latex emulsion preferably comprises both acrylic emulsion and polyurethane emulsion, the sum of the mass of the acrylic emulsion and the mass of the polyurethane emulsion is preferably 30-40% of the mass of the aluminum powder-containing latex emulsion, and the mass ratio of the acrylic emulsion to the polyurethane emulsion is preferably 1: 1. The source of the acrylic emulsion and the polyurethane emulsion is not particularly limited in the present invention, and commercially available products well known to those skilled in the art may be used; in the invention, the acrylic emulsion and the polyurethane emulsion as media can well compound the emulsion layer containing the aluminum powder layer and the first pure emulsion layer together, thereby ensuring that the two layers are not peeled off.
When the aluminum powder-containing latex emulsion comprises an acrylic emulsion, the aluminum powder and the butyronitrile latex emulsion are preferably stirred for 2 hours at the speed of 200r/min to obtain the aluminum powder-containing latex emulsion;
when the aluminum powder-containing latex emulsion comprises a polyurethane emulsion, the polyurethane emulsion, aluminum powder and butyronitrile latex emulsion are preferably stirred for 2 hours at the speed of 200r/min to obtain the aluminum powder-containing latex emulsion;
when the aluminum powder-containing latex emulsion comprises acrylic emulsion and polyurethane emulsion, the acrylic emulsion, the polyurethane emulsion, the aluminum powder and the butyronitrile latex emulsion are preferably stirred for 2 hours at the speed of 200r/min to obtain the aluminum powder-containing latex emulsion.
The invention soaks the flocculating agent in the hand mould and then dries the hand mould to obtain the flocculating agent-attached hand mould.
In the invention, before a flocculating agent is soaked, the hand mould is preferably pretreated, the pretreatment preferably comprises the step of cleaning the hand mould, the cleaning preferably comprises the steps of acid cleaning, alkali cleaning and water cleaning in sequence, the acid solution for acid cleaning is preferably hydrochloric acid, and the concentration of the hydrochloric acid is preferably 2-5 g/L; the alkali liquor for alkali washing is preferably a sodium hydroxide solution, and the concentration of the sodium hydroxide is preferably 2-5 g/L; the purpose of the acid washing and the alkali washing is to clean the surface of the hand mould; the invention has no special requirement on the washing times, and the acid and alkali can be washed clean.
The washed hand mold is preferably dried in the invention, and in the embodiment of the invention, the drying is preferably carried out in an oven. In the invention, the drying temperature is preferably 60-80 ℃, and the drying time is preferably 10-30 min.
In the invention, the time for dipping the flocculant is preferably 1-3 min, and the thickness of a formed flocculant wet film is preferably 0.3-0.5 mm; the flocculating agent is preferably a calcium nitrate solution, and the calcium nitrate solution preferably accounts for 10-15% by mass. The source of the flocculant is not particularly limited in the present invention, and a commercially available product known to those skilled in the art may be used. In the invention, the flocculant enables latex particles to be broken evenly to form a latex film, and the latex film with uniform thickness is formed in an auxiliary mode.
After the flocculant is soaked, the hand model with the flocculant wet film is dried to obtain the flocculant-attached hand model. In the invention, the drying temperature is preferably 60-80 ℃, the drying time is preferably 20-40 min, and the drying is preferably carried out in an oven.
After the flocculant-attached hand model is obtained, the flocculant-attached hand model is subjected to first dipping in the latex emulsion, and after the first dipping is finished, the primary dipped glove is obtained.
In the invention, the time for the first impregnation is preferably 90-120 s, and more preferably 100-110 s; the thickness of the first dipping formed latex wet film is preferably 0.35-0.45 mm. In the present invention, the first flow level is preferably a spin level; the spin leveling time is preferably 30 s.
After the primary dipping gloves are obtained, the primary dipping gloves are subjected to second dipping in the aluminum powder-containing latex emulsion, and after the second dipping, secondary dipping gloves are obtained.
In the invention, the time for the second impregnation is preferably 10-30 s, and more preferably 15-25 s; the thickness of the wet film of the aluminum powder latex formed by the second dipping is preferably 0.05-0.2 mm, and more preferably 0.10 mm. In the present invention, the second flow level is preferably a rotating flow level; the spin leveling time is preferably 30 s.
After the secondary impregnated gloves are obtained, the invention sequentially carries out pre-drying, vulcanization and reverse demoulding on the secondary impregnated gloves to obtain the cool rubber gloves.
In the invention, the pre-drying is preferably carried out in an oven, and the pre-drying temperature is preferably 60-100 ℃, more preferably 80 ℃; the pre-drying time is preferably 5-15 min, and the pre-drying is latex curing, so that the gloves can be separated from the mold.
In the invention, the vulcanization temperature is preferably 100-120 ℃; the vulcanizing time is preferably 20-40 min, and the vulcanizing is preferably carried out in a vulcanizing machine.
In the invention, the demoulding is preferably manual stripping, and during the stripping, the glove is reversely stripped, the pure latex layer is changed into an outer pure latex layer, the aluminum powder latex layer is changed into an inner aluminum powder latex layer, and meanwhile, the flocculant layer formed by the flocculant is removed.
The invention also provides the rubber gloves with cool feeling prepared by the preparation method in the technical scheme, which comprise an aluminum powder latex inner layer and a pure latex outer layer. In the invention, the inner-layer aluminum powder emulsion layer is contacted with hands.
The present invention will be described in detail with reference to examples, but the scope of the present invention is not limited to these examples.
Example 1
Providing a pure latex emulsion: adding 1.5phr of sulfur dispersion liquid, 3phr of zinc oxide dispersion liquid and 2phr of zinc diethyldithiocarbamate dispersion liquid into the latex emulsion at the rotating speed of 200r/min to form butyronitrile latex with the solid content of 50%, and stirring for 2 hours to form pure latex emulsion;
providing an aluminum powder-containing latex emulsion: adding aluminum powder (3 mu m) accounting for 12 percent of the total mass of the aluminum powder and the latex emulsion into the pure latex emulsion at the rotating speed of 200r/min, and stirring for 2 hours to obtain aluminum powder-containing latex emulsion;
cleaning the hand mold in hydrochloric acid with the mass concentration of 3g/L, then cleaning in sodium hydroxide solution with the mass concentration of 3g/L, finally cleaning in clear water to remove the hydrochloric acid and the sodium hydroxide solution, and drying at 70 ℃ for 20min to obtain a clean hand mold;
soaking the clean hand mold in a calcium nitrate solution with the mass concentration of 10g/L for 3min, and drying in a 60 ℃ oven for 30min to obtain a dried hand mold; carrying out first dipping on the dried hand model in pure latex emulsion for 100s, and obtaining a primary dipping glove after rotary leveling; dipping the primary dipping glove in the aluminum powder-containing latex emulsion for 20s to obtain a secondary dipping glove; and (3) drying the secondary dipped gloves in an oven at 60 ℃ for 15 minutes, then vulcanizing in a vulcanizing machine at 110 ℃ for 30 minutes, and reversely demolding to obtain the rubber gloves with cool feeling.
Example 2
Providing a pure latex emulsion: adding 1.0phr of sulfur dispersion liquid, 2phr of zinc oxide dispersion liquid and 1.5phr of zinc diethyldithiocarbamate dispersion liquid into the latex emulsion at the rotating speed of 200r/min, and slowly stirring for 2 hours to form pure latex emulsion, wherein the solid content of the butyronitrile latex is 40%, and the mass fraction of the acrylonitrile emulsion is 30% of the mass of the butyronitrile latex;
providing an aluminum powder-containing latex emulsion: adding aluminum powder (2 mu m) accounting for 5 percent of the total mass of the aluminum powder and the latex emulsion into the pure latex emulsion and the acrylic emulsion containing 30 percent of the aluminum powder by mass percent at the rotating speed of 200r/min, and slowly stirring the pure latex emulsion and the acrylic emulsion for 1.5 hours to obtain the aluminum powder-containing latex emulsion;
cleaning the hand mold in hydrochloric acid with the mass concentration of 3g/L, then cleaning in sodium hydroxide solution with the mass concentration of 2g/L, finally cleaning in clear water, removing the hydrochloric acid and the sodium hydroxide solution, and drying at 80 ℃ for 20min to obtain a clean hand mold;
soaking the clean hand mold in a calcium nitrate solution with the mass concentration of 12g/L for 1.5min, and drying in a 70 ℃ oven for 20min to obtain a dried hand mold; carrying out first dipping on the dried hand model in pure latex emulsion for 90s, and obtaining a primary dipping glove after rotary leveling; dipping the primary dipping glove in the aluminum powder-containing latex emulsion for 10 seconds to obtain a secondary dipping glove; and (3) drying the secondary dipped gloves in an oven at 100 ℃ for 5 minutes, then vulcanizing in a vulcanizing machine at 100 ℃ for 40 minutes, and reversely demolding to obtain the rubber gloves with cool feeling.
Example 3
Providing a pure latex emulsion: adding 1.5phr of sulfur dispersion liquid, 3phr of zinc oxide dispersion liquid and 2phr of zinc diethyldithiocarbamate dispersion liquid into the latex emulsion at the rotating speed of 200r/min by using butyronitrile latex with the solid content of 45 percent, and slowly stirring the mixture for 2 hours to form pure latex emulsion;
providing an aluminum powder-containing latex emulsion: adding 20% aluminum powder (1 micron) of the total mass of the aluminum powder and the latex emulsion into the pure latex emulsion and the polyurethane emulsion containing 20% of the aluminum powder latex emulsion at the rotating speed of 200r/min, and slowly stirring for 2 hours to obtain the aluminum powder latex emulsion;
cleaning the hand mold in hydrochloric acid with the mass concentration of 5g/L, then cleaning in a sodium hydroxide solution with the mass concentration of 5g/L, finally cleaning in clear water, removing the hydrochloric acid and the sodium hydroxide solution, and drying at 65 ℃ for 20min to obtain a clean hand mold;
soaking the clean hand mold in 15g/L calcium nitrate solution for 3min, and drying in an oven at 80 ℃ for 40min to obtain a dried hand mold; carrying out first dipping on the dried hand model in pure latex emulsion for 120s, and obtaining a primary dipping glove after rotary leveling; the primary dipping glove is dipped in the aluminum powder-containing latex emulsion for 30 seconds to obtain a secondary dipping glove; and (3) drying the secondary dipped gloves in an oven at 80 ℃ for 10 minutes, then vulcanizing in a vulcanizing machine at 120 ℃ for 20 minutes, and reversely demolding to obtain the rubber gloves with cool feeling.
Example 4
Providing a pure latex emulsion: adding 1.2phr of sulfur dispersion liquid, 1.5phr of zinc oxide dispersion liquid and 2phr of zinc diethyldithiocarbamate dispersion liquid into the latex emulsion at the rotating speed of 200r/min, slowly stirring for 2 hours, and forming pure latex emulsion by the balance of butyronitrile latex;
providing an aluminum powder-containing latex emulsion: adding aluminum powder (5 mu m) accounting for 10 percent of the total mass of the aluminum powder and the latex emulsion into the pure latex emulsion at the rotating speed of 200r/min, and slowly stirring for 2 hours to obtain aluminum powder-II-containing latex emulsion;
cleaning the hand mold in hydrochloric acid with the mass concentration of 2g/L, then cleaning in sodium hydroxide solution with the mass concentration of 2g/L, finally cleaning in clear water, removing the hydrochloric acid and the sodium hydroxide solution, and drying at 75 ℃ for 20min to obtain a clean hand mold;
soaking the clean hand mold in a calcium nitrate solution with the mass concentration of 13g/L for 2.5min, and drying in a 65 ℃ oven for 25min to obtain a dried hand mold; carrying out first dipping on the dried hand model in pure latex emulsion for 110s, and obtaining a primary dipping glove after rotary leveling; dipping the primary dipping glove in the aluminum powder-containing latex emulsion for 15 seconds to obtain a secondary dipping glove; and (3) drying the secondary dipped gloves in an oven at 90 ℃ for 8 minutes, then vulcanizing in a vulcanizing machine at 115 ℃ for 25 minutes, and reversely demolding to obtain the rubber gloves with cool feeling.
Example 5
Providing a pure latex emulsion: adding 1.3phr of sulfur dispersion liquid, 1.8phr of zinc oxide dispersion liquid and 1phr of zinc diethyldithiocarbamate dispersion liquid into the latex emulsion at the rotating speed of 200r/min, and slowly stirring the mixture for 2 hours to form pure latex emulsion;
providing an aluminum powder-containing latex emulsion: adding aluminum powder (4 mu m) accounting for 8 percent of the total mass of the aluminum powder and the latex emulsion into the pure latex emulsion at the rotating speed of 200r/min, and slowly stirring the mixture for 2 hours to obtain aluminum powder-containing latex emulsion;
cleaning the hand mold in hydrochloric acid with the mass concentration of 4g/L, then cleaning in sodium hydroxide solution with the mass concentration of 3g/L, finally cleaning in clear water, removing the hydrochloric acid and the sodium hydroxide solution, and drying at 60 ℃ for 20min to obtain a clean hand mold;
soaking the clean hand mold in 11g/L calcium nitrate solution for 1.2min, and drying in a 75 ℃ oven for 35min to obtain a dried hand mold; carrying out first dipping on the dried hand model in pure latex emulsion for 95s, and obtaining a primary dipping glove after rotary leveling; dipping the primary dipping glove in the aluminum powder-containing latex emulsion for 25 seconds to obtain a secondary dipping glove; and (3) drying the secondary dipped gloves in an oven at 70 ℃ for 12 minutes, then vulcanizing in a vulcanizing machine at 105 ℃ for 35 minutes, and reversely demolding to obtain the rubber gloves with cool feeling.
Comparative example
Providing a pure latex emulsion: adding 1.5phr of sulfur dispersion liquid, 3phr of zinc oxide dispersion liquid and 2phr of zinc diethyldithiocarbamate dispersion liquid into the latex emulsion at the rotating speed of 200r/min, and slowly stirring the mixture for 2 hours to form pure latex emulsion;
cleaning the hand mold in hydrochloric acid with the mass concentration of 3g/L, then cleaning in sodium hydroxide solution with the mass concentration of 3g/L, finally cleaning in clear water, removing the hydrochloric acid and the sodium hydroxide solution, and drying at 70 ℃ for 20min to obtain a clean hand mold;
soaking the clean hand mold in a calcium nitrate solution with the mass concentration of 10g/L for 3min, and drying in a 60 ℃ oven for 30min to obtain a dried hand mold; carrying out first dipping on the dried hand model in pure latex emulsion for 100s, and obtaining a primary dipping glove after rotary leveling; the primary dipping gloves are dipped for 20 seconds in pure latex emulsion for the second time to obtain secondary dipping gloves; and (3) drying the secondary dipped gloves in an oven at 60 ℃ for 15 minutes, then vulcanizing in a vulcanizing machine at 110 ℃ for 30 minutes, and reversely demolding to obtain the rubber gloves with cool feeling.
The gloves prepared in the examples 1 to 5 and the comparative example are subjected to infrared temperature measurement, a wearer wears the gloves prepared in the examples 1 to 5 and the comparative example for 20min and then is in the same environment, and the hand temperature of the wearer of the gloves prepared in the examples 1 to 5 is 35.7 ℃, 35.5 ℃, 34.9 ℃, 35.2 ℃, 35.1 ℃ and the comparative example is 37.8 ℃;
the results of the tests of the examples 1-5 and the comparative example show that the temperature of the gloves with cool feeling is reduced by 2.9 ℃ at most compared with the temperature of the gloves worn by a conventional method after the gloves are worn for 20 minutes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A preparation method of rubber gloves with cool feeling is characterized by comprising the following steps:
soaking the hand mold with a flocculating agent and then drying to obtain a flocculating agent-attached hand mold;
carrying out first dipping on the flocculant-attached hand model in latex emulsion, and obtaining a primary dipping glove after the first dipping is carried out;
carrying out second dipping on the primary dipping gloves in aluminum powder-containing latex emulsion, and obtaining secondary dipping gloves after second leveling, wherein the aluminum powder-containing latex emulsion comprises butyronitrile latex emulsion and aluminum powder;
and (3) sequentially carrying out pre-drying, vulcanization and reverse demolding on the secondary impregnated gloves to obtain the cool rubber gloves.
2. The method according to claim 1, wherein the aluminum powder has a particle diameter of 1 to 5 μm.
3. The preparation method according to claim 1 or 2, wherein the mass of the aluminum powder is 5 to 20% of the mass of the aluminum powder-containing latex emulsion.
4. The method according to claim 1, wherein the aluminum powder-containing latex emulsion further comprises an acrylic emulsion and/or a polyurethane emulsion.
5. The method of claim 1, wherein the latex emulsion comprises a nitrile latex emulsion, a sulfur dispersion, a zinc oxide dispersion, and a vulcanization accelerator dispersion.
6. The production method according to claim 5, wherein the mass ratio of the sulfur dispersion liquid, the zinc oxide dispersion liquid, and the vulcanization accelerator dispersion liquid is 1 to 1.5:1 to 3:1 to 2.
7. The method of claim 1, 5 or 6, wherein the first dipping time is 90 to 120s and the thickness is 0.3 to 0.5 mm.
8. The method of claim 1, 2 or 4, wherein the second impregnation is carried out for 10 to 30 seconds and has a thickness of 0.35 to 0.45 mm.
9. The preparation method according to claim 1, wherein the pre-drying temperature is 60-100 ℃ and the time is 5-15 min; the vulcanizing temperature is 100-120 ℃, and the time is 20-50 min.
10. The rubber glove with cool feeling prepared by the preparation method of any one of claims 1 to 9, which comprises an aluminum powder latex inner layer and a pure latex outer layer.
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| US20190106554A1 (en) * | 2017-10-09 | 2019-04-11 | Avadiar MUTHUSAMY | A biodegradable elastomeric film composition and method for producing the same |
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