阅读说明：本技术 一种方便戴取的医用乳胶手套及其制备方法 (Medical latex glove convenient to put on and take off and preparation method thereof ) 是由 杜欣 张曦 高蕾 江涛 冯娜 曾荔 冯雪 李莎莎 曾理 伍满群 于 2020-04-03 设计创作，主要内容包括：本发明涉及医疗装备技术领域,公开了一种方便戴取的医用乳胶手套及其制备方法,包括乳胶手套外层和乳胶手套内层；乳胶手套外层的原材料包括,天然乳胶80-100份、硫磺2-4份、硫化促进剂1-2份、防老化剂2-3份、起泡剂0.5-0.8份、季铵盐类抗菌剂0.5-0.8份；乳胶手套内层的原材料包括,天然乳胶40-50份、改性天然乳胶40-50份、硫磺2-4份、硫化促进剂1-2份、防老化剂2-3份、石蜡油3-4份、起泡剂0.5-0.8份、Al(OH)<Sub>3</Sub>4-6份；所述改性天然乳胶为魔芋胶改性天然乳胶。本发明能够具有优良的吸水性和润滑性,能够对使用者手上的汗水进行吸附,使得乳胶手套的内部保持干燥,在穿戴和取下乳胶手套时,更加的容易、方便。(The invention relates to the technical field of medical equipment, and discloses a medical latex glove convenient to put on and take off and a preparation method thereofAn outer layer and an inner layer of the latex glove; the raw materials of the outer layer of the latex glove comprise 80-100 parts of natural latex, 2-4 parts of sulfur, 1-2 parts of vulcanization accelerator, 2-3 parts of anti-aging agent, 0.5-0.8 part of foaming agent and 0.5-0.8 part of quaternary ammonium salt antibacterial agent; the inner layer of the latex gloves comprises 40-50 parts of natural latex, 40-50 parts of modified natural latex, 2-4 parts of sulfur, 1-2 parts of vulcanization accelerator, 2-3 parts of anti-aging agent, 3-4 parts of paraffin oil, 0.5-0.8 part of foaming agent and Al (OH) 3 4-6 parts; the modified natural latex is konjac glucomannan modified natural latex. The invention has excellent water absorption and lubricity, can absorb sweat on the hand of a user, keeps the inside of the latex glove dry, and is easier and more convenient to wear and take down the latex glove.)

1. A medical latex glove convenient for wearing and taking is characterized in thatIn the following steps: comprises an outer layer of latex gloves and an inner layer of latex gloves; according to the mass parts, the raw materials of the outer layer of the latex glove comprise 80-100 parts of natural latex, 2-4 parts of sulfur, 1-2 parts of vulcanization accelerator, 2-3 parts of anti-aging agent, 0.5-0.8 part of foaming agent and 0.5-0.8 part of quaternary ammonium salt antibacterial agent; the raw materials of the inner layer of the latex gloves comprise 40-50 parts of natural latex, 40-50 parts of modified natural latex, 2-4 parts of sulfur, 1-2 parts of vulcanization accelerator, 2-3 parts of anti-aging agent, 3-4 parts of paraffin oil, 0.5-0.8 part of foaming agent and Al (OH)₃4-6 parts; the modified natural latex is konjac glucomannan modified natural latex.

2. The medical latex glove convenient to put on and take off as claimed in claim 1, wherein: the raw materials of the outer layer of the latex glove comprise 90 parts of natural latex, 3 parts of sulfur, 1.5 parts of vulcanization accelerator, 2.5 parts of anti-aging agent, 0.65 part of foaming agent and 0.65 part of quaternary ammonium salt antibacterial agent; the raw materials of the inner layer of the latex glove comprise 45 parts of natural latex, 45 parts of konjac glucomannan modified natural latex, 3 parts of sulfur, 1.5 parts of vulcanization accelerator, 2.5 parts of anti-aging agent, 3.5 parts of paraffin oil, 0.65 part of foaming agent and Al (OH)₃5 parts of the raw materials.

3. The medical latex glove convenient to put on and take off as claimed in claim 2, wherein: the konjac gum in the konjac gum modified natural latex is subjected to hydrophilic modification.

4. The medical latex glove convenient to put on and take off as claimed in claim 3, wherein: the vulcanization accelerator is any one of brominated p-tert-octylphenol formaldehyde resin, WL brominated resin and WS brominated resin; the foaming agent is sodium fluosilicate.

5. The medical latex glove convenient to put on and take off as claimed in claim 4, wherein: the quaternary ammonium salt antibacterial agent is one or more of monoalkyl quaternary ammonium salt, dialkyl quaternary ammonium salt, organosilicon quaternary ammonium salt, organic fluorine quaternary ammonium salt and organic chlorine quaternary ammonium salt.

6. A method for preparing the medical latex gloves convenient to put on and take off according to claim 5, which is characterized in that: the contact surface of the outer layer of the latex glove and the inner layer of the latex glove is fused into a whole.

7. The method for preparing a medical latex glove convenient to put on and take off as claimed in claim 6, wherein the method comprises the following steps: the preparation method of the outer layer of the latex glove comprises the following steps,

a1, mixing natural latex, sulfur and an anti-aging agent, stirring uniformly, adding a vulcanization accelerator, continuing stirring for 4-6h, and stirring for 1-2h with a quaternary ammonium salt antibacterial agent to form a mixed solution;

a2, adding a foaming agent into the mixed solution obtained in the step A1, and stirring for 1-2 hours at the rotating speed of 2000-3000r/min to obtain liquid rubber material of the outer layer of the latex glove;

a3, treating the liquid rubber material on the outer layer of the latex glove in the step A2 by high-temperature steam to enable the rubber material to be gelled and shaped, demoulding and washing, mechanically extruding and throwing water, drying and cooling to finish shaping.

8. The method for preparing a medical latex glove convenient to put on and take off as claimed in claim 7, wherein the method comprises the following steps: the preparation method of the inner layer of the latex glove comprises the following steps,

b1, mixing the natural latex, the konjac gum modified natural latex, the sulfur, the anti-aging agent, the vulcanization accelerator and the paraffin oil, stirring uniformly, and adding Al (OH)₃Continuously stirring for 4-6h to form a mixed solution;

b2, adding a foaming agent into the mixed solution obtained in the step B1, and stirring for 1-2 hours at the rotating speed of 2000-3000r/min to obtain liquid rubber material of the inner layer of the latex glove;

b3, treating the liquid rubber material of the inner layer of the latex glove in the step B2 by high-temperature steam to enable the rubber material to be gelled and shaped, demolding and washing, mechanically extruding and throwing water, drying and cooling to finish shaping.

9. The method for preparing a medical latex glove convenient to put on and take off as claimed in claim 8, wherein: the preparation method of the konjac glucomannan modified natural latex comprises the following steps,

c1, taking 8-10 parts of konjac glucomannan by mass, adding the konjac glucomannan into 100 parts of deionized water under the stirring state, stirring for 15-25min at the rotating speed of 100-120r/min, and hydrating for 1-2h to obtain a konjac glucomannan solution;

c2, adding 2-3 parts of absolute ethyl alcohol, 1-2 parts of chloroacetic acid and 1-2 parts of sodium hydroxide into the konjac gum solution obtained in the step C1, stirring and stirring for 10-15min under the stirring of 3000r/min at 2000-50 ℃, and then placing in an environment at 40-50 ℃ for 1-2h to modify the konjac gum to obtain a modified konjac gum solution;

and C3, adding 2-3 parts of concentrated nitric acid with the mass concentration of 68% into 30-40 parts of natural latex, stirring for 1-2h, adding into the modified konjac glucomannan solution obtained in the step C2, and stirring for 2-3h to obtain the konjac glucomannan modified natural latex.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a medical latex glove convenient to put on and take off and a preparation method thereof.

Background

The latex gloves are one kind of gloves, different from common gloves, are processed by latex, can be used in household, industry, medical treatment, beauty treatment and other industries, and are necessary hand protection articles. The latex gloves are processed by adopting natural latex and other fine additives, and the products are comfortable to wear after being subjected to special surface treatment, and have wide application in industrial and agricultural production, medical treatment and daily life.

However, because of the closed nature of the latex glove when worn, sweat generated in the hand of the user cannot be removed after wearing the latex glove, and the glove is not easily removed because the glove is tightly attached to the hand of the wearer after wearing the glove. The reason for difficult removal of the latex gloves is analyzed from physics, and the first reason is that under the condition of not much sweat, the roughness of the contact surface of the latex gloves and the hands is increased, so that the friction force is increased when the gloves are removed; secondly, because the latex gloves can be tightly pressed on the skin due to the existence of sweat and the action of atmospheric pressure, a plurality of vacuum belts are arranged between the latex gloves and the skin, so that the latex gloves are adsorbed on the skin of the hand, the pressure difference between the inside and the outside of the gloves is increased, and the gloves are difficult to take off. From this analysis, it is found that the main reason why the latex gloves are difficult to remove is due to the presence of sweat and the poor lubricity of the latex gloves; therefore, the improvement of the sweat absorption performance and the lubricity of the latex gloves is a main means for solving the problem that the latex gloves are difficult to take off after being worn.

In order to solve the problem that the latex gloves are inconvenient to wear and take, at present, modified corn flour or talcum powder is added into the latex gloves by some manufacturers to increase the lubricity of the latex gloves, but the method can be used for only a few times, and when the modified corn flour or talcum powder in the gloves is consumed, the problem that the latex gloves are inconvenient to wear and take still exists.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a medical latex glove which is easy to put on and take off, has excellent water absorption and lubricity, can absorb sweat on a user's hand, keeps the inside of the latex glove dry, and is easy and convenient to put on and take off the latex glove, and a method for manufacturing the same.

The invention solves the technical problems by the following technical means:

a medical latex glove convenient to put on and take off comprises a latex glove outer layer and a latex glove inner layer; the outer layer of the latex glove comprises, by mass, 80-100 parts of natural latex, 2-4 parts of sulfur, 1-2 parts of vulcanization accelerator, 2-3 parts of anti-aging agent, 0.5-0.8 part of foaming agent and 0.5-0.8 part of quaternary ammonium salt antibacterial agent; the raw materials of the inner layer of the latex glove comprise 40-50 parts of natural latex, 40-50 parts of modified natural latex, 2-4 parts of sulfur, 1-2 parts of vulcanization accelerator, 2-3 parts of anti-aging agent, 3-4 parts of paraffin oil, 0.5-0.8 part of foaming agent, and the like,Al(OH)₃4-6 parts; the modified natural latex is konjac glucomannan modified natural latex.

Further, the raw materials of the outer layer of the latex glove comprise 90 parts of natural latex, 3 parts of sulfur, 1.5 parts of vulcanization accelerator, 2.5 parts of anti-aging agent, 0.65 part of foaming agent and 0.65 part of quaternary ammonium salt antibacterial agent; the raw materials of the inner layer of the latex glove comprise 45 parts of natural latex, 45 parts of konjac glucomannan modified natural latex, 3 parts of sulfur, 1.5 parts of vulcanization accelerator, 2.5 parts of anti-aging agent, 3.5 parts of paraffin oil, 0.65 part of foaming agent and Al (OH)₃5 parts of the raw materials.

Further, konjac gum in the konjac gum modified natural latex is subjected to hydrophilic modification. After the konjac gum is subjected to hydrophilic modification, the konjac gum has more hydrophilic groups-OH and stronger water absorption.

Further, the vulcanization accelerator is any one of brominated p-tert-octylphenol formaldehyde resin, WL brominated resin and WS brominated resin; the foaming agent is sodium fluosilicate. The vulcanization accelerator can promote vulcanization, shorten vulcanization time, reduce vulcanization temperature, reduce vulcanizing agent dosage, improve physical and mechanical properties of the latex and the like.

Further, the quaternary ammonium salt antibacterial agent is one or more of monoalkyl quaternary ammonium salt, dialkyl quaternary ammonium salt, organosilicon quaternary ammonium salt, organic fluorine quaternary ammonium salt and organic chlorine quaternary ammonium salt. Quaternary ammonium salt is used as an antibacterial agent and is added into the natural latex, and the natural latex has the advantages and antibacterial property of the natural latex; the quaternary ammonium salt antibacterial agent is grafted on the latex high polymer to prepare an antibacterial natural latex product with low toxicity, long antibacterial time and little environmental pollution.

The scheme also discloses a preparation method of the medical latex gloves convenient to wear, and the preparation method is that the contact surface of the outer layer of the latex gloves and the inner layer of the latex gloves is fused into a whole.

Further, the preparation method of the outer layer of the latex glove comprises the following steps,

a1, mixing natural latex, sulfur and an anti-aging agent, stirring uniformly, adding a vulcanization accelerator, continuing stirring for 4-6h, and stirring for 1-2h with a quaternary ammonium salt antibacterial agent to form a mixed solution;

a2, adding a foaming agent into the mixed solution obtained in the step A1, and stirring for 1-2 hours at the rotating speed of 2000-3000r/min to obtain liquid rubber material of the outer layer of the latex glove;

a3, treating the liquid rubber material on the outer layer of the latex glove in the step A2 by high-temperature steam to enable the rubber material to be gelled and shaped, demoulding and washing, mechanically extruding and throwing water, drying and cooling to finish shaping.

In the preparation process, the anti-aging agent is added to prolong the service life of the latex gloves, the quaternary ammonium salt antibacterial agent is added to change the physical and chemical properties of the surfaces of the latex gloves, increase the density of positive charges, easily adsorb bacteria with negative charges, invade cell walls of the bacteria and combine with the cell membranes, finally destroy the cell membranes, prevent the formation of bacterial biofilms from the source and achieve better antibacterial effect.

Further, the preparation method of the inner layer of the latex glove comprises the following steps,

b1, mixing the natural latex, the konjac gum modified natural latex, the sulfur, the anti-aging agent, the vulcanization accelerator and the paraffin oil, stirring uniformly, and adding Al (OH)₃Continuously stirring for 4-6h to form a mixed solution;

b2, adding a foaming agent into the mixed solution obtained in the step B1, and stirring for 1-2 hours at the rotating speed of 2000-3000r/min to obtain liquid rubber material of the inner layer of the latex glove;

b3, treating the liquid rubber material of the inner layer of the latex glove in the step B2 by high-temperature steam to enable the rubber material to be gelled and shaped, demolding and washing, mechanically extruding and throwing water, drying and cooling to finish shaping.

In the preparation process, the konjac gum molecular chain in the konjac gum modified natural latex molecule is Al (OH)₃Under the action of the cross-linking agent, the latex is cross-linked to form gel, and the gel is mixed with natural latex, sulfur, an anti-aging agent, a vulcanization accelerator and paraffin oil to obtain the inner layer material of the latex glove, and the paraffin oil is used as a lubricant and can improve the lubricating property of the inner layer material of the latex glove.

Further, the preparation method of the konjac glucomannan modified natural latex comprises the following steps,

c1, taking 8-10 parts of konjac glucomannan by mass, adding the konjac glucomannan into 100 parts of deionized water under the stirring state, stirring for 15-25min at the rotating speed of 100-120r/min, and hydrating for 1-2h to obtain a konjac glucomannan solution;

c2, adding 2-3 parts of absolute ethyl alcohol, 1-2 parts of chloroacetic acid and 1-2 parts of sodium hydroxide into the konjac gum solution obtained in the step C1, stirring and stirring for 10-15min under the stirring of 3000r/min at 2000-50 ℃, and then placing in an environment at 40-50 ℃ for 1-2h to modify the konjac gum to obtain a modified konjac gum solution;

and C3, adding 2-3 parts of concentrated nitric acid with the mass concentration of 68% into 30-40 parts of natural latex, stirring for 1-2h, adding into the modified konjac glucomannan solution obtained in the step C2, and stirring for 2-3h to obtain the konjac glucomannan modified natural latex.

The konjac gum belongs to natural plant gum, has large molecular weight, has hydrophilic group-OH, and is modified to increase the hydrophilic group-OH and improve the water absorption capacity of the konjac gum; the konjac glucomannan and the natural latex both contain unsaturated bonds, under the oxidation action of concentrated nitric acid, the unsaturated bonds of the modified konjac glucomannan and the natural latex are broken, the modified konjac glucomannan and the natural latex are grafted into larger molecules, and finally the konjac glucomannan modified natural latex is formed.

The invention has the beneficial effects that:

1. the medical latex gloves are arranged as the outer layers of the latex gloves and the inner layers of the latex gloves, the addition of the quaternary ammonium salt antibacterial agent on the outer layers can change the physical and chemical properties of the surfaces of the latex gloves, increase the density of positive charges, easily adsorb bacteria with negative charges, invade cell walls of the bacteria and combine with the cell membranes, finally destroy the cell membranes, prevent the formation of bacterial biofilms from the source, achieve better antibacterial effect and are very suitable for the medical latex gloves.

2. The inner layer of the latex glove is added with the paraffin oil, so that the lubricity of the inner layer of the latex glove is increased; and it is after carrying on the hydrophilic modification to the konjac glucomannan first, then with modified konjac glucomannan and natural latex under the oxidizing action of concentrated nitric acid, the unsaturated bond of modified konjac glucomannan and natural latex breaks, modified konjac glucomannan and natural latex graft into bigger molecule, form the konjac glucomannan modified natural latex finally, prepare into the latex glove inner layer together with natural latex finally, while using, sweat on the wearer's hand is sucked dry by the konjac glucomannan modified natural latex, keep the drying of the inside of latex glove, make the latex glove when dressing and taking off, it is easier and more convenient.

3. The konjac glucomannan modified natural latex on the inner layer of the latex glove can be dried after absorbing water, and the konjac glucomannan modified natural latex naturally shrinks after being dried, so that the latex glove can be repeatedly used for many times.

Detailed Description

The invention is illustrated in detail by examples 1 to 3: