Antibacterial butyronitrile gloves with skin care effect and preparation method thereof
By applying vitamin E to the inner layer of the nitrile gloves and spraying a silver-based antibacterial agent on the outer layer, combined with multiple protective layers and electrostatic flocking, the problems of easy microbial growth and skin dryness in gloves are solved, achieving the dual effects of antibacterial and skin care. It is suitable for household cleaning, medical assistance, and food processing.
Patent Information
- Application Number
- CN202511081753.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-04
- Publication Date
- 2025-11-18
AI Technical Summary
Existing nitrile gloves are prone to microbial growth during wear, leading to odor and cross-infection risks. Furthermore, prolonged wear can cause dry and rough skin, making it difficult to achieve both antibacterial and skin-care benefits.
The gloves employ an inner layer coated with Vitamin E and an outer layer sprayed with a silver complex antibacterial agent. This creates a primary complex by combining silver salts with ursolic acid, which in turn stabilizes silver ions with castor oil and calcium behenate micelles, forming multiple protective layers to achieve a slow-release antibacterial effect. Furthermore, the inner lining of the gloves undergoes electrostatic flocking to enhance their skin-care properties.
The antibacterial gloves exhibit good sustained-release properties, high stability, and a broad antibacterial spectrum, effectively inhibiting bacterial growth while providing nourishment and moisturizing effects, thus enhancing wearing comfort.
Smart Images
Figure BDA0005531131910000061 
Figure BDA0005531131910000071
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of rubber gloves, in particular, to an antibacterial nitrile glove with skin care effect and a preparation method thereof. BACKGROUND
[0002] In modern society, nitrile gloves, as an important protective product, are widely used in household cleaning, medical assistance, food processing and other fields due to their good chemical resistance, flexibility and fit, providing effective physical isolation protection for hands, reducing the direct invasion of external pollutants and irritating substances on the skin.
[0003] However, there are still many problems to be solved in the actual use of existing nitrile gloves. On the one hand, due to the close fit of the hands and the gloves when worn, the hand sweat is difficult to evaporate, forming a closed and humid microenvironment, which is easy to breed various microorganisms, not only may produce odor, but also may increase the risk of cross infection, especially in medical, food processing and other scenes with strict hygiene requirements, this problem is more prominent; on the other hand, when wearing traditional nitrile gloves for a long time, the continuous friction between the glove material and the skin of the hand, combined with the loss of water in the hand, easily leads to dry and rough skin, and even causes discomfort such as sensitivity and itching, especially for people who need to wear gloves frequently and for a long time, the problem of damaged skin barrier is particularly significant.
[0004] At present, the nitrile gloves on the market mainly focus on the improvement of basic protection performance, and there is obvious deficiency in the coordination of antibacterial function and skin care effect, which is difficult to meet the dual needs of protection safety and wearing comfort of users. Therefore, it has become an important development direction in the current related field to develop a nitrile glove that can effectively inhibit the breeding of microorganisms and reduce skin irritation and protect the skin of the hand. SUMMARY
[0005] Therefore, the present application is devoted to providing an antibacterial nitrile glove with skin care effect and a preparation method thereof, which has the effects of skin care and antibacterial.
[0006] In order to solve the above technical problems, the present application is implemented as follows:
[0007] The present application provides an antibacterial nitrile glove with skin care effect, comprising the following components by weight:
[0008] 88-95 parts of nitrile rubber, 4-6 parts of vitamin E, 4-6 parts of silver composite antibacterial agent, 1-3 parts of vulcanizing agent, 1-3 parts of accelerator, 1-3 parts of stabilizer, and 1-3 parts of anti-aging agent.
[0009] Preferably, in the above antibacterial nitrile glove with skin care effect, the preparation method of the silver composite antibacterial agent comprises the following steps:
[0010] mixing the silver salt solution and the ursolic acid solution to perform a first reaction to obtain a first product;
[0011] mixing the first product and a castor oil solution to perform a second reaction to obtain a second product;
[0012] adding a non-ionic dispersant to the calcium behenate solution to obtain a mixed solution, adding the second product and ascorbic acid to the mixed solution to perform a third reaction to obtain a silver composite antibacterial agent.
[0013] Preferably, in the antibacterial nitrile glove with skin care function, the volume ratio of the silver salt solution to the ursolic acid solution is 1:0.5-2;
[0014] The concentration of the silver salt solution is 0.05-0.5 mol / L;
[0015] The concentration of the ursolic acid solution is 0.1-1 wt%:
[0016] The silver salt in the silver salt solution comprises at least one of silver chloride, silver nitrate and silver sulfate;
[0017] The solvent in the silver salt solution comprises water;
[0018] The solvent in the ursolic acid solution comprises anhydrous ethanol.
[0019] Preferably, in the antibacterial nitrile glove with skin care function, the temperature of the first reaction is 25-60°C, and the time of the first reaction is 0.5-2 h.
[0020] Preferably, in the antibacterial nitrile glove with skin care function, the usage ratio of the first product to the castor oil solution is (0.1-0.5) g:1 mL;
[0021] The concentration of the castor oil solution is 5-20 wt%;
[0022] The solvent of the castor oil solution is anhydrous ethanol.
[0023] Preferably, in the antibacterial nitrile glove with skin care function, the temperature of the second reaction is 40-70°C, and the time of the second reaction is 1-3 h.
[0024] Preferably, in the antibacterial nitrile glove with skin care function, the usage ratio of the calcium behenate solution to the second product is (50-200) mL:(10-50) g;
[0025] The usage ratio of the calcium behenate solution to the non-ionic dispersant is (50-200) mL:(1-5) g;
[0026] The use ratio of the calcium behenate solution and the ascorbic acid is (50-200) mL:(4-6) g;
[0027] The concentration of the calcium behenate solution is 1-5 wt%;
[0028] The solvent in the calcium behenate solution comprises water;
[0029] The non-ionic dispersant comprises polyvinylpyrrolidone.
[0030] Preferably, in the antibacterial nitrile glove with skin care function, the temperature of the third reaction is 30-50℃, and the time of the third reaction is 1-4 h.
[0031] Preferably, in the antibacterial nitrile glove with skin care function, the vulcanizing agent comprises sulfur;
[0032] The accelerator comprises zinc dibutyl dithiocarbamate;
[0033] The stabilizer comprises sodium carboxymethyl cellulose;
[0034] The antioxidant comprises antioxidant 4020.
[0035] The application further provides a preparation method of the antibacterial nitrile glove with skin care function, comprising the following steps:
[0036] The nitrile rubber, the vulcanizing agent, the accelerator, the stabilizer and the antioxidant are mixed and vulcanized at 140℃ for 12 h, then the mold is heated to 78℃, the obtained product after vulcanization is placed in the mold, water at 65℃ is used for leaching, and drying is performed at 80℃, so as to obtain the glove;
[0037] After electrostatic flocking is performed on the inner lining of the glove, vitamin E is added, and baking is performed at 80℃; the silver composite antibacterial agent is dispersed in water to obtain a suspension with a solid content of 20 wt%; after the baking is completed, the suspension is sprayed on the outer surface of the glove, and then drying is performed at 60℃, so as to obtain the antibacterial nitrile glove with skin care function.
[0038] Through the above technical solution, the application has the following beneficial technical effects:
[0039] (1) The antibacterial nitrile glove with skin care effect provided by the application has the following advantages: vitamin E is coated on the inner layer, silver composite antibacterial agent is sprayed on the outer layer, the inner layer is electrostatically flocked and baked with vitamin E to fix the vitamin E on the inner surface of the glove, the vitamin E is in continuous contact with the skin during wearing, and is gradually released in friction and hand sweat, thereby playing the effects of nourishing, moisturizing and repairing the skin, and the glove has the functions of antibacterial and skin care, and solves the problems of easy breeding of bacteria and stimulation of the skin of the traditional glove.
[0040] (2) The silver composite antibacterial agent provided by the application has the following advantages: firstly, silver salt and ursolic acid form a primary complex through carboxyl coordination, which endows the system with hydrophobicity and the inherent antioxidant and anti-inflammatory properties of ursolic acid; then, the product reacts with castor oil in ethanol, and the long-chain fatty acids form a dense outer layer, which helps to improve the stability of silver ions and delay their release, and prevent oxidation inactivation; finally, in the water phase environment stabilized by calcium behenate micelles and PVP, ascorbic acid reduces silver ions in situ to nano-silver, and behenic acid silver is formed through ion exchange, and a multiple steric hindrance protection layer is constructed together with PVP, which improves the antibacterial activity and stability of silver nanoparticles. Thus, the silver composite antibacterial agent precisely controls the release rate of silver ions through the dense organic shell layer (ursolic acid-castor oil derivative-behenic acid-PVP), avoids the rapid failure caused by explosive release, and realizes the broad-spectrum and persistent inhibition of bacteria and fungi through the synergistic effect of nano-silver and organic silver. At the same time, calcium behenate is used as a carrier and is used synergistically with a non-ionic dispersant, which can effectively disperse the antibacterial components and provide a mechanically stable support structure to ensure that the antibacterial agent maintains high activity during production, processing and storage. Through the above-mentioned multi-component and multi-mechanism synergistic complex, the silver composite antibacterial agent has the advantages of good sustained release, high stability, wide antibacterial spectrum and long duration, avoids the problems of easy aggregation and rapid failure of traditional antibacterial agents, greatly improves the antibacterial performance of nitrile gloves, and ensures that bacteria are inhibited during long-term wearing in medical, food and industrial environments. DETAILED DESCRIPTION
[0041] The application discloses an antibacterial nitrile glove with skin care effect and a preparation method thereof, and those skilled in the art can refer to the content herein and appropriately improve process parameters to realize. It should be particularly pointed out that all similar substitutions and changes are obvious to those skilled in the art, and they are all regarded as included in the application. The method and application of the application have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the method and application described herein without departing from the content, spirit and scope of the application, to realize and apply the technical solution of the application.
[0042] The application is further described in detail through the following examples. The raw materials used in the examples can be obtained through commercial channels.
[0043] Preparation Example 1
[0044] The silver nitrate aqueous solution with a concentration of 0.3 mol / L and the arbutin ethanol solution with a concentration of 0.5 wt% were mixed at a volume ratio of 1:1.5, and a reaction was performed at 40°C for 1 h. After the reaction, the obtained product was washed and dried to obtain a first product.
[0045] The first product and the castor oil ethanol solution with a concentration of 10 wt% were mixed at a usage ratio of 0.3 g:1 mL, and a reaction was performed at 50°C for 2 h. After the reaction, the obtained product was washed and dried to obtain a second product.
[0046] Polyvinylpyrrolidone was added to the calcium behenate aqueous solution with a concentration of 2.5 wt% at a usage ratio of 100 mL:3 g to obtain a mixed solution. The second product and ascorbic acid were added to the mixed solution, and a reaction was performed at 40°C for 2 h. After the reaction, the obtained product was washed and dried to obtain a silver composite antibacterial agent. The usage ratio of the calcium behenate solution to the second product was 100 mL:30 g, and the usage ratio of the calcium behenate solution to ascorbic acid was 100 mL:5 g.
[0047] Preparation Example 2
[0048] The silver nitrate aqueous solution with a concentration of 0.05 mol / L and the arbutin ethanol solution with a concentration of 0.1 wt% were mixed at a volume ratio of 1:2, and a reaction was performed at 25°C for 2 h. After the reaction, the obtained product was washed and dried to obtain a first product.
[0049] The first product and the castor oil ethanol solution with a concentration of 5 wt% were mixed at a usage ratio of 0.1 g:1 mL, and a reaction was performed at 40°C for 3 h. After the reaction, the obtained product was washed and dried to obtain a second product.
[0050] Polyvinylpyrrolidone was added to the calcium behenate aqueous solution with a concentration of 2 wt% at a usage ratio of 50 mL:5 g to obtain a mixed solution. The second product and ascorbic acid were added to the mixed solution, and a reaction was performed at 30°C for 4 h. After the reaction, the obtained product was washed and dried to obtain a silver composite antibacterial agent. The usage ratio of the calcium behenate solution to the second product was 50 mL:10 g, and the usage ratio of the calcium behenate solution to ascorbic acid was 50 mL:4 g.
[0051] Preparation Example 3
[0052] The silver nitrate aqueous solution with a concentration of 0.5 mol / L and the arbutin ethanol solution with a concentration of 1 wt% are mixed in a volume ratio of 1:0.5, and a reaction is carried out at 60°C for 2 h; after the reaction is completed, the obtained product is washed and dried to obtain a first product;
[0053] The first product and the castor oil ethanol solution with a concentration of 20 wt% are mixed in a dosage ratio of 0.5 g:1 mL, and a reaction is carried out at 70°C for 1 h; after the reaction is completed, the obtained product is washed and dried to obtain a second product;
[0054] Polyvinylpyrrolidone is added to the calcium behenate aqueous solution with a concentration of 5 wt% in a dosage ratio of 200 mL:3 g to obtain a mixed solution; the second product and ascorbic acid are added to the mixed solution, and a reaction is carried out at 30°C for 1 h; after the reaction is completed, the obtained product is washed and dried to obtain a silver composite antibacterial agent; wherein the dosage ratio of the calcium behenate solution and the second product is 200 mL:20 g; the dosage ratio of the calcium behenate solution and ascorbic acid is 200 mL:6 g.
[0055] Example 1
[0056] An antibacterial nitrile glove with skin care efficacy includes the following components in parts by weight:
[0057] The nitrile rubber is 91 parts, vitamin E is 5 parts, the silver composite antibacterial agent prepared in Preparation Example 1 is 4 parts, the vulcanizing agent sulfur is 2 parts, the accelerator zinc dibutyl dithiocarbamate is 2 parts, the stabilizer sodium carboxymethyl cellulose is 2 parts, and the antioxidant is 2 parts of antioxidant 4020.
[0058] A preparation method of an antibacterial nitrile glove with skin care efficacy includes the following steps:
[0059] The nitrile rubber, the vulcanizing agent, the accelerator, the stabilizer, and the antioxidant are mixed and vulcanized at 140°C for 12 h; then the mold is heated to 78°C, the obtained product after vulcanization is placed in the mold, water at 65°C is used for leaching, and drying is carried out at 80°C to obtain the glove;
[0060] After electrostatic flocking is carried out on the lining of the glove, vitamin E is added and baking is carried out at 80°C; the silver composite antibacterial agent is dispersed in water to obtain a suspension with a solid content of 20 wt%; after the baking is completed, the suspension is sprayed on the outer surface of the glove, and then drying is carried out at 60°C to obtain the antibacterial nitrile glove with skin care efficacy.
[0061] Example 2
[0062] An antibacterial nitrile glove with skin care efficacy includes the following components in parts by weight:
[0063] Nitrile rubber 88 parts, vitamin E 6 parts, silver composite antibacterial agent prepared in Preparation Example 2 6 parts, vulcanizing agent sulfur 1 part, accelerator zinc dibutyl dithiocarbamate 1 part, stabilizer sodium carboxymethyl cellulose 1 part, anti-aging agent 1 part anti-aging agent 4020.
[0064] The method for preparing the antibacterial nitrile glove with skin care efficacy is consistent with that in Example 1.
[0065] Example 3
[0066] An antibacterial nitrile glove with skin care efficacy comprises the following components in parts by weight:
[0067] Nitrile rubber 95 parts, vitamin E 4 parts, silver composite antibacterial agent prepared in Preparation Example 3 4 parts, vulcanizing agent sulfur 3 parts, accelerator zinc dibutyl dithiocarbamate 3 parts, stabilizer sodium carboxymethyl cellulose 3 parts, anti-aging agent 3 parts anti-aging agent 4020.
[0068] The method for preparing the antibacterial nitrile glove with skin care efficacy is consistent with that in Example 1.
[0069] Comparative Example 1
[0070] An antibacterial nitrile glove with skin care efficacy differs from Example 1 in that:
[0071] The method for preparing the silver composite antibacterial agent comprises the following steps:
[0072] A silver nitrate aqueous solution with a concentration of 0.3 mol / L and a bearberry acid ethanol solution with a concentration of 0.5 wt% are mixed at a volume ratio of 1:1.5, and a reaction is performed at 40°C for 1 h. After the reaction is completed, the obtained product is washed and dried to obtain a first product;
[0073] The first product and a castor oil ethanol solution with a concentration of 10 wt% are mixed at a ratio of 0.3 g:1 mL, and a reaction is performed at 50°C for 2 h. After the reaction is completed, the obtained product is washed and dried to obtain a silver composite antibacterial agent.
[0074] The rest is the same as in Example 1.
[0075] Comparative Example 2
[0076] An antibacterial nitrile glove with skin care efficacy differs from Example 1 in that:
[0077] The method for preparing the silver composite antibacterial agent comprises the following steps:
[0078] A silver nitrate aqueous solution with a concentration of 0.3 mol / L and a castor oil ethanol solution with a concentration of 10 wt% were mixed in a ratio of 0.3 g: 1 mL, and a reaction was performed at 50°C for 2 h. After the reaction, the product was washed and dried to obtain a first product.
[0079] Polyvinylpyrrolidone was added to a 2.5 wt% calcium behenate aqueous solution in a ratio of 100 mL: 3 g to obtain a mixed solution. The first product and ascorbic acid were added to the mixed solution, and a reaction was performed at 40°C for 2 h. After the reaction, the product was washed and dried to obtain a silver composite antibacterial agent. The ratio of the calcium behenate solution to the second product was 100 mL: 30 g, and the ratio of the calcium behenate solution to ascorbic acid was 100 mL: 30 g.
[0080] The rest was the same as in Example 1.
[0081] Comparative Example 3
[0082] An antibacterial nitrile glove with skin care efficacy, which is different from Example 1 in that it does not contain a silver composite antibacterial agent.
[0083] The rest was the same as in Example 1.
[0084] Performance test
[0085] 1. The antibacterial nitrile glove with skin care efficacy prepared in the examples and comparative examples was subjected to antibacterial performance testing. The antibacterial testing method was as follows: 2 cm x 2 cm of the glove sample was sterilized, and then Staphylococcus aureus, Candida albicans, and Escherichia coli bacterial solutions were dropped onto the surface of the sterile sample. The bacterial solution had a concentration of 10 7 cfu / mL, and the bacterial solution was dropped at a rate of 0.05 mL / cm 2 . Then the sample was incubated at 37°C for 24 h. The bacterial solution on the sample was diluted and inoculated on an agar plate containing a culture medium, and incubated at 37°C for 24 h. The number of viable bacteria was calculated (referring to GB / T4789.2). The antibacterial rate was calculated according to the number of viable bacteria and the total number of bacteria. The antibacterial rate calculation formula was (total number of bacteria - number of viable bacteria) / total number of bacteria x 100%. The antibacterial durability was that the glove sample was stored under room temperature and ventilation conditions for 60 d, and the antibacterial rate was detected. The results are shown in Table 1.
[0086] Table 1
[0087]
[0088]
[0089] 2. Vitamin E detection was performed on the antibacterial nitrile gloves with skin care efficacy prepared in Example 1, and the results are shown in Table 2.
[0090] Table 2
[0091] Tested substance Units Limit of detection Limit of quantification Test result Vitamin E mg / kg 25 30 73.7
[0092] The above only is the preferred embodiment of the present application, it should be pointed out that, for the ordinary skilled in the art, without departing from the principles of the present application, can also make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.
Claims
1. An antibacterial nitrile glove with skin-care benefits, characterized in that, The components include the following parts by weight: The ingredients are: 88-95 parts nitrile rubber, 4-6 parts vitamin E, 4-6 parts silver composite antibacterial agent, 1-3 parts vulcanizing agent, 1-3 parts accelerator, 1-3 parts stabilizer, and 1-3 parts antioxidant.
2. The antibacterial nitrile gloves with skin-care effects according to claim 1, characterized in that, The preparation method of the silver composite antibacterial agent includes the following steps: The silver salt solution and ursolic acid solution were mixed to carry out the first reaction, yielding the first product; The first product was mixed with a castor oil solution to carry out a second reaction, yielding the second product. A nonionic dispersant was added to a calcium behenate solution to obtain a mixed solution; a second product and ascorbic acid were added to the mixed solution to carry out a third reaction, resulting in a silver composite antibacterial agent.
3. The antibacterial nitrile gloves with skin-care effects according to claim 2, characterized in that, The volume ratio of the silver salt solution to the ursolic acid solution is 1:0.5-2; The concentration of the silver salt solution is 0.05–0.5 mol / L; The concentration of the ursolic acid solution is 0.1–1 wt%. The silver salt in the silver salt solution includes at least one of silver chloride, silver nitrate and silver sulfate; The solvent in the silver salt solution includes water; The solvent in the ursolic acid solution includes anhydrous ethanol.
4. The antibacterial nitrile glove with skin-care effects according to claim 2, characterized in that, The temperature of the first reaction is 25–60°C, and the reaction time is 0.5–2 hours.
5. The antibacterial nitrile glove with skin-care effects according to claim 2, characterized in that, The ratio of the first product to the castor oil solution is (0.1-0.5) g: 1 mL; The concentration of the castor oil solution is 5–20 wt%. The solvent for the castor oil solution is anhydrous ethanol.
6. The antibacterial nitrile glove with skin-care effects according to claim 2, characterized in that, The temperature of the second reaction is 40–70°C, and the reaction time is 1–3 hours.
7. The antibacterial nitrile glove with skin-care effects according to claim 2, characterized in that, The ratio of the calcium behenate solution to the second product is (50-200) mL: (10-50) g; The ratio of the calcium behenate solution to the nonionic dispersant is (50-200) mL: (1-5) g; The ratio of the calcium behenate solution to the ascorbic acid is (50-200) mL: (4-6) g; The concentration of the calcium behenate solution is 1–5 wt%. The solvent in the calcium behenate solution includes water; The nonionic dispersant includes polyvinylpyrrolidone.
8. The antibacterial nitrile glove with skin-care effects according to claim 2, characterized in that, The temperature of the third reaction is 30–50°C, and the time of the third reaction is 1–4 hours.
9. The antibacterial nitrile glove with skin-care effects according to claim 1, characterized in that, The vulcanizing agent includes sulfur; The accelerator includes zinc dibutyldithiocarbamate; The stabilizer includes sodium carboxymethyl cellulose; The antioxidant includes antioxidant 4020.
10. A method for preparing the antibacterial nitrile gloves with skin-care effects according to any one of claims 1 to 8, characterized in that, Includes the following steps: Nitrile rubber, vulcanizing agent, accelerator, stabilizer and antioxidant are mixed and vulcanized at 140℃ for 12h. Then the mold is heated to 78℃, the vulcanized product is placed in the mold and filtered with water at 65℃, and dried at 80℃ to obtain gloves. After electrostatic flocking of the inner lining of the gloves, vitamin E was added and baked at 80°C. Silver composite antibacterial agent was dispersed in water to obtain a suspension with a solid content of 20wt%. After baking, the suspension was sprayed onto the outer surface of the gloves and then dried at 60°C to obtain antibacterial nitrile gloves with skin-care effects.