阅读说明：本技术 一种长效衣物消毒剂及其制备方法 (Long-acting clothes disinfectant and preparation method thereof ) 是由 康翼鸿 喻学锋 黄湛 贾宝泉 于 2020-05-20 设计创作，主要内容包括：本发明提供一种长效衣物消毒剂,按重量份计,包括：缓释微胶囊1-30份,渗透剂0.1-5份,分散剂0.1-5份,水60-98.8份；其中,按重量份计,所述缓释微胶囊包括：含氯消毒剂1-30份,第一有机聚合物1-30份,第二有机聚合物1-30份,阳离子型杂化硅溶胶1-30份,金属盐0.1-10份。本发明还提供了上述长效衣物消毒剂的制备方法,具体为：制备阳离子型杂化硅溶胶；利用阳离子型杂化硅溶胶制备缓释微胶囊；向分散剂中加入水,搅拌均匀,然后加入渗透剂和缓释微胶囊,搅拌溶解,即得到长效衣物消毒剂。本发明提供的长效衣物消毒剂不仅消毒形式多元,且效果持久,能有效提高纺织品的防护效果。(The invention provides a long-acting clothing disinfectant, which comprises the following components in parts by weight: 1-30 parts of sustained-release microcapsules, 0.1-5 parts of penetrating agent, 0.1-5 parts of dispersing agent and 60-98.8 parts of water; wherein, the slow release microcapsule comprises the following components in parts by weight: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt. The invention also provides a preparation method of the long-acting clothes disinfectant, which comprises the following steps: preparing cation type hybrid silica sol; preparing a slow-release microcapsule by using cationic hybrid silica sol; adding water into the dispersant, stirring uniformly, then adding the penetrating agent and the slow-release microcapsule, and stirring for dissolving to obtain the long-acting clothing disinfectant. The long-acting clothes disinfectant provided by the invention has multiple disinfection forms and lasting effect, and can effectively improve the protection effect of textiles.)

1. A long-acting disinfectant for clothes is characterized by comprising the following components in parts by weight: 1-30 parts of sustained-release microcapsules, 0.1-5 parts of penetrating agent, 0.1-5 parts of dispersing agent and 60-98.8 parts of water; wherein, the slow release microcapsule comprises the following components in parts by weight: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt.

2. The long-acting laundry disinfectant according to claim 1, wherein said cationic hybrid silica sol comprises, in parts by weight: 15-20 parts of cosolvent, 0.001-0.005 part of catalyst, 6-15 parts of precursor and 0.1-0.5 part of additive.

3. The long-acting laundry disinfectant as claimed in claim 2, wherein said co-solvent is ethanol, said catalyst is hydrochloric acid, said precursor is ethyl orthosilicate, and said additive is dioctadecyldimethylammonium chloride.

4. The long-acting garment sanitizer according to claim 1, wherein the penetrant is at least one of JFC, JFC-1, JFC-2, JFC-E; the dispersing agent is at least one of fatty alcohol-polyoxyethylene ether, fatty acid-polyoxyethylene ester, span and Tween.

5. The long-acting laundry disinfectant according to claim 1, wherein said chlorine-containing disinfectant is either sodium hypochlorite or chlorine dioxide or a mixture of both; the first organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone; the metal salt is at least one of copper chloride, silver nitrate and zinc chloride; the second organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone.

6. A method of preparing a long-acting laundry disinfectant as claimed in any of claims 1 to 5, comprising the steps of:

s1, preparing cation hybrid silica sol;

s2, preparing the slow-release microcapsule by using cation hybrid silica sol;

s3, adding water into the dispersant, stirring uniformly, then adding the penetrating agent and the slow-release microcapsule, stirring and dissolving to obtain the long-acting clothing disinfectant.

7. The method for preparing a long-acting disinfectant for clothes as claimed in claim 6, wherein in step S1, the cationic hybrid silica sol is prepared by: mixing the cosolvent, the catalyst, the precursor and the additive, and stirring for 2-4h at the temperature of 30-50 ℃ to obtain the cation hybrid silica sol.

8. The method of claim 6, wherein in step S2, the slow-release microcapsule is prepared by: adding water into the chlorine-containing disinfectant to prepare a chlorine-containing disinfectant solution; adding water into the first organic polymer to prepare a first organic polymer solution, and dropwise adding the chlorine-containing disinfectant solution into the first organic polymer solution to obtain a first mixed emulsion; adding water into metal salt and a second organic polymer respectively to prepare a metal salt solution and a second organic polymer solution, sequentially adding the second organic polymer solution and the metal salt solution into cation hybrid silica sol, and uniformly stirring to obtain a second mixed emulsion; and dropwise adding the first mixed emulsion into the second mixed emulsion, carrying out ultrasonic treatment after dropwise adding, standing, centrifuging, filtering, washing, drying and filtering to obtain a solid substance, and thus obtaining the slow-release microcapsule.

Technical Field

The invention relates to the technical field of disinfection products, in particular to a long-acting clothes disinfectant and a preparation method thereof.

Background

Since 2000, infectious diseases caused by pathogenic viruses such as influenza virus, "sars" virus, new coronavirus, etc. have continuously outbreaked and spread worldwide, seriously threatening human life. Among them, the new coronavirus pneumonia which is outbreak at the end of 2019 is a serious test which people face all over the world, and at present, more than 40% of cases are cross-infection caused by insufficient protection in hospitals, clinics, nursing homes and other epidemic prevention frontlines. The existing protective measures such as regular disinfection of places can only play a temporary role in disinfecting the environment, dust, aerosol and liquid drops carrying viruses can be temporarily isolated on the outer surface of clothes only by physical isolation and electrostatic adsorption when people wear traditional protective clothing, protective caps, masks and other textile clothes, but the accumulation of a large amount of viruses and the characteristic of long survival time of part of viruses enable people to bear the risk of infection.

In order to reduce the number of germs in textiles such as clothes, sheets, hats, etc., which are in direct contact with the human body, people usually sterilize the textiles. The disinfectants adopted at present are generally chlorine-containing disinfectants (chlorine dioxide, sodium hypochlorite, triclosan and the like), alcohols, iodides, biguanides, quaternary ammonium salts and the like, wherein the iodides, biguanides, quaternary ammonium salts and the like mainly have a remarkable inhibiting effect on bacteria and have a very small effect on microorganisms such as coronavirus and the like; chlorine-containing disinfectants and 75% alcohol have been proven to have a broad and highly effective killing and inhibiting effect on most viruses including coronavirus, whereas in daily use, alcohol is difficult to use for disinfection of clothes due to its flammability and explosiveness, and chlorine-containing disinfectants are used for disinfection of clothes without a sustained effect, and thus have been limited in the field of clothes disinfection. Meanwhile, with the increasing severity of epidemic situations, people have higher and higher requirements on keeping clothes anti-bacteria for a long time, but the effect timeliness of the traditional clothes disinfection product is generally finished along with the completion of the disinfection process, and the traditional clothes disinfection product cannot play a better protection role in the use process of people.

Therefore, a preparation technology of the slow-release disinfectant is developed, is applied to textiles such as clothes and the like, has the capability of killing germs, can slowly release the disinfectant, is tightly combined with the clothes, and synergistically prolongs the action time on the clothes, so that the preparation technology has important significance for killing germs attached to the clothes at any time and reducing the infection probability of personnel.

Disclosure of Invention

In view of the above, the invention provides a long-acting clothes disinfectant capable of prolonging the action time, and also provides a preparation method of the long-acting clothes disinfectant.

The invention provides a long-acting clothing disinfectant, which comprises the following components in parts by weight: 1-30 parts of sustained-release microcapsules, 0.1-5 parts of penetrating agent, 0.1-5 parts of dispersing agent and 60-98.8 parts of water.

Further, the slow-release microcapsule comprises a core material, an organic compound shell layer and an inorganic compound shell layer, wherein the organic compound shell layer and the inorganic compound shell layer are sequentially coated on the outer side of the core material from inside to outside, the core material is formed by a chlorine-containing disinfectant, the organic compound shell layer is formed by a first organic polymer, and the inorganic compound shell layer is formed by a second organic polymer, cationic hybrid silica sol and metal salt.

Further, the weight parts of the raw materials for forming the slow-release microcapsule are as follows: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt.

Further, the sustained-release microcapsule is prepared by the following process: (1) adding water into the chlorine-containing disinfectant for dilution to prepare a chlorine-containing disinfectant solution; (2) adding water into the first organic polymer to prepare a first organic polymer solution, dropwise and slowly adding a chlorine-containing disinfectant solution into the first organic polymer solution under the stirring condition of 5000-10000rpm to obtain a first mixed emulsion, and carrying out ultrasonic treatment on the first mixed emulsion; (3) adding water into the metal salt and the second organic polymer respectively to prepare a metal salt solution and a second organic polymer solution, sequentially adding the second organic polymer solution and the metal salt solution into the cation hybrid silica sol, and uniformly stirring to obtain a second mixed emulsion; (4) and (3) dropwise adding the ultrasonically treated first mixed emulsion into the second mixed emulsion under the stirring condition of 5000-10000rpm, carrying out ultrasonic treatment after dropwise addition, standing, centrifuging, filtering, washing, drying and filtering to obtain a solid substance, and obtaining the slow-release microcapsule with the diameter of 2-10 mu m.

Further, the cationic hybrid silica sol is prepared by the following process: mixing a cosolvent, a catalyst, a precursor and an additive, and stirring for 2-4h at the temperature of 30-50 ℃ to obtain cation hybrid silica sol with the particle size of about 2-15 nm; wherein the weight parts of the raw materials are as follows: 15-20 parts of cosolvent, 0.001-0.005 part of catalyst, 6-15 parts of precursor and 0.1-0.5 part of additive; the cosolvent is ethanol, the catalyst is hydrochloric acid, the precursor is ethyl orthosilicate, and the additive is dioctadecyl dimethyl ammonium chloride.

Further, the first organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of polyethylene glycol is 500-30000, the molecular weight of polyvinyl alcohol is 30000-150000, the molecular weight of polyvinylpyrrolidone is 20000-300000, and the mass fraction of the prepared first organic polymer solution is 1% -30%. Preferably, the mass fraction of the first organic polymer solution prepared is 2% to 15%.

Further, the chlorine-containing disinfectant is one or a mixture of sodium hypochlorite and chlorine dioxide, and the mass fraction of the prepared chlorine-containing disinfectant solution is 0.1% -50%. Preferably, the prepared chlorine-containing disinfectant solution has a mass fraction of 5% -50%.

Further, the metal salt is at least one of copper chloride, silver nitrate and zinc chloride.

Further, the second organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of polyethylene glycol is 500-30000, the molecular weight of polyvinyl alcohol is 30000-150000, the molecular weight of polyvinylpyrrolidone is 20000-300000, and the mass fraction of the prepared second organic polymer solution is 1% -30%. Preferably, the second organic polymer solution is prepared to have a mass fraction of 2% to 15%.

Further, the penetrating agent is at least one of JFC, JFC-1, JFC-2 and JFC-E.

Further, the dispersing agent is at least one of fatty alcohol-polyoxyethylene ether, fatty acid-polyoxyethylene ester, span and Tween.

The invention also provides a preparation method of the long-acting clothes disinfectant, which comprises the following steps:

step S1, preparing cation hybrid silica sol;

step S2, preparing sustained-release microcapsules by using cation hybrid silica sol;

step S3, preparing a long-acting laundry disinfectant: adding water into the dispersant, stirring uniformly, then adding the penetrating agent and the slow-release microcapsule, and stirring for dissolving to obtain the long-acting clothing disinfectant.

Further, in step S1, the preparation process of the cation hybrid silica sol is as follows: mixing the cosolvent, the catalyst, the precursor and the additive, and stirring for 2-4h at the temperature of 30-50 ℃ to obtain the cation hybrid silica sol with the particle size of about 2-15 nm.

Further, the cation hybrid silica sol is prepared from the following raw materials in parts by weight: 15-20 parts of cosolvent, 0.001-0.005 part of catalyst, 6-15 parts of precursor and 0.1-0.5 part of additive.

Further, the cosolvent is ethanol, the catalyst is hydrochloric acid, the precursor is ethyl orthosilicate, and the additive is dioctadecyldimethylammonium chloride.

Further, in step S2, the process for preparing the sustained-release microcapsule is as follows: adding water into the chlorine-containing disinfectant for dilution to prepare a chlorine-containing disinfectant solution with the mass fraction of 0.1-50%; adding water into the first organic polymer to prepare a first organic polymer solution with the mass fraction of 1-30%, dropwise and slowly adding a chlorine-containing disinfectant solution into the first organic polymer solution under the stirring condition of 5000-10000rpm to obtain a first mixed emulsion, and carrying out ultrasonic treatment on the first mixed emulsion for 1-5 min; adding water into the metal salt and the second organic polymer respectively to prepare a metal salt solution and a second organic polymer solution with the mass fraction of 1% -30%, adding the second organic polymer solution into the cation hybrid silica sol, stirring for 30-60min, then adding the metal salt solution, and stirring for 10-30im to obtain a second mixed emulsion; and (3) dropwise adding the ultrasonically treated first mixed emulsion into the second mixed emulsion under the stirring condition of 5000-10000rpm, carrying out ultrasonic treatment for 1-5min after dropwise adding, standing, centrifuging, filtering, washing, drying and filtering to obtain a solid substance, and obtaining the slow-release microcapsule with the diameter of 2-10 microns.

Further, the weight parts of the raw materials for preparing the slow-release microcapsule are as follows: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt.

Further, the first organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of polyethylene glycol is 30000-.

Further, the chlorine-containing disinfectant is any one or a mixture of sodium hypochlorite and chlorine dioxide.

Further, the metal salt is at least one of copper chloride, silver nitrate and zinc chloride.

Further, the second organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of polyethylene glycol is 30000-.

Further, the long-acting clothing disinfectant is prepared from the following raw materials in parts by weight: 1-30 parts of sustained-release microcapsules, 0.1-5 parts of penetrating agent, 0.1-5 parts of dispersing agent and 60-98.8 parts of water.

Further, the penetrating agent is at least one of JFC, JFC-1, JFC-2 and JFC-E.

Further, the dispersing agent is at least one of fatty alcohol-polyoxyethylene ether, fatty acid-polyoxyethylene ester, span and Tween.

The long-acting clothing disinfectant prepared by the invention is attached to medical and sanitary textiles (such as white gowns, hospital gowns, sickbed articles and the like) and daily textiles (such as clothing, bedding and the like) in a soaking or spraying mode, and can realize the antibiosis and disinfection for 1-3 months.

The mechanism for realizing long-time disinfection of the long-acting clothing disinfectant provided by the invention is as follows: after the chlorine-containing disinfectant and the first organic polymer are blended, the first organic polymer forms an organic compound shell layer to coat the unstable chlorine-containing disinfectant in a natural state, and the organic compound shell layer can delay the permeation and volatilization of the chlorine-containing disinfectant; after the first mixed emulsion is blended with the metal salt solution, the second organic polymer solution and the cation hybrid silica sol, the metal salt solution, the second organic polymer solution and the cation hybrid silica sol form an inorganic compound shell layer coated with an organic compound shell layer, the inorganic compound shell layer can further protect and delay permeation, meanwhile, the cation hybrid silica sol can form strong bonding force with anionic fibers in the later laundry finishing process, the loss of the slow-release microcapsules on clothes is effectively reduced, and the service life is prolonged.

Compared with the traditional clothes disinfectant, the long-acting clothes disinfectant provided by the invention has the following advantages:

1. the invention utilizes organic compound shell and inorganic compound shell to wrap the chlorine-containing disinfectant component to form the slow-release microcapsule, so that the chlorine-containing disinfectant can be stably and slowly released, and the action time of the disinfectant is prolonged; the chlorine-containing disinfectant component is matched with metal ions in the inorganic compound shell layer, so that bacteria and viruses can be effectively killed, and a synergistic disinfection effect is achieved;

2. the slow-release microcapsule in the formula of the long-acting clothing disinfectant provided by the invention is a cation slow-release microcapsule, and the slow-release microcapsule has the characteristics of adjustable structure, stable coating, controllable slow release, simple and convenient preparation, simple process for combining with textiles and the like, can effectively overcome the defects of short period of slow-release materials using gel and powder as carriers, high difficulty in combining with textiles and the like, can be combined with anionic fiber fabrics more firmly and not easily fall off, greatly reduces the loss of the slow-release microcapsule on fabrics, improves the utilization rate of the slow-release microcapsule, and prolongs the service life of the slow-release microcapsule;

3. the long-acting clothes disinfectant provided by the invention has multiple disinfection forms and lasting effect, can effectively improve the protection effect of textiles, and reduces the infection probability in hospitals and daily places.

Drawings

FIG. 1 is a schematic diagram of a process for preparing a long-acting laundry disinfectant according to example 1 of the present invention;

FIG. 2 is a schematic structural view of a sustained-release microcapsule prepared in example 1 of the present invention;

in fig. 2: 1-core material, 2-organic compound shell layer and 3-inorganic compound shell layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.

The embodiment of the invention provides a long-acting clothing disinfectant, which comprises 1-30 parts of slow-release microcapsules, 0.1-5 parts of penetrants, 0.1-5 parts of dispersing agents and 60-98.8 parts of water in parts by weight; wherein the penetrating agent is at least one of JFC, JFC-1, JFC-2 and JFC-E; the dispersing agent is at least one of fatty alcohol-polyoxyethylene ether, fatty acid-polyoxyethylene ester, span and Tween; the slow release microcapsule comprises a core material, an organic compound shell layer and an inorganic compound shell layer, wherein the organic compound shell layer and the inorganic compound shell layer are sequentially coated on the outer side of the core material from inside to outside, the core material is formed by a chlorine-containing disinfectant, the organic compound shell layer is formed by a first organic polymer, the inorganic compound shell layer is formed by a second organic polymer, cationic hybrid silica sol and metal salt, and the slow release microcapsule comprises the following raw materials in parts by weight: 1-30 parts of chlorine-containing disinfectant, 1-30 parts of first organic polymer, 1-30 parts of second organic polymer, 1-30 parts of cationic hybrid silica sol and 0.1-10 parts of metal salt.

In this embodiment, the chlorine-containing disinfectant is one or a mixture of sodium hypochlorite and chlorine dioxide, and the sodium hypochlorite or chlorine dioxide has the effect of killing microorganisms in a broad spectrum; the first organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of the polyethylene glycol is 500-30000, the molecular weight of the polyvinyl alcohol is 30000-150000, and the molecular weight of the polyvinylpyrrolidone is 20000-300000; the metal salt is at least one of copper chloride, silver nitrate and zinc chloride; the second organic polymer is at least one of polyethylene glycol, polyvinyl alcohol and polyvinylpyrrolidone, the molecular weight of the polyethylene glycol is 500-30000, the molecular weight of the polyvinyl alcohol is 30000-150000, and the molecular weight of the polyvinylpyrrolidone is 20000-300000; the cation hybrid silica sol is prepared by mixing and stirring 15-20 parts by weight of cosolvent, 0.001-0.005 part by weight of catalyst, 6-15 parts by weight of precursor and 0.1-0.5 part by weight of additive, wherein the particle size of the mixture is about 2-15nm, the cosolvent is preferably ethanol, the catalyst is preferably hydrochloric acid, the precursor is preferably ethyl orthosilicate, and the additive is preferably dioctadecyldimethylammonium chloride.

The preparation process of the sustained-release microcapsule comprises the following steps: (1) adding water to 1-30 parts by weight of chlorine-containing disinfectant for dilution, and preparing to obtain a 0.1-50% chlorine-containing disinfectant solution in parts by weight; (2) adding water into 1-30 parts by weight of first organic polymer to prepare a first organic polymer solution with the mass fraction of 1% -30%, dropwise and slowly adding a chlorine-containing disinfectant solution into the first organic polymer solution under the stirring condition of 5000-10000rpm to obtain a first mixed emulsion, and carrying out ultrasonic treatment on the first mixed emulsion for 1-5 min; (3) adding water into 0.1-10 parts by weight of metal salt and 1-30 parts by weight of second organic polymer respectively to prepare a metal salt solution and a second organic polymer solution with the mass fraction of 1% -30%, adding the second organic polymer solution into 1-30 parts by weight of cation hybrid silica sol, stirring for 30-60min, then adding the metal salt solution, and stirring for 10-30im to obtain a second mixed emulsion; (4) and (3) dropwise adding the ultrasonically treated first mixed emulsion into the second mixed emulsion under the stirring condition of 5000-10000rpm, carrying out ultrasonic treatment for 1-5min after dropwise adding, standing, centrifuging, filtering, washing, drying and filtering to obtain a solid substance, and obtaining the slow-release microcapsule with the diameter of 2-10 microns.

Preferably, the mass fraction of the first organic polymer solution is 2% to 15%.

Preferably, the mass fraction of the chlorine-containing disinfectant solution is 5% -50%.

Preferably, the mass fraction of the second organic polymer solution is 2% to 15%.

The embodiment of the invention also provides a preparation method of the long-acting clothes disinfectant, which comprises the following steps: adding 60-98.8 parts of water into 0.1-5 parts of dispersing agent by weight, uniformly stirring, then adding 0.1-5 parts of penetrating agent and 1-30 parts of slow-release microcapsule, and stirring and dissolving to obtain the long-acting clothing disinfectant.

The long-acting disinfectant for clothes and the preparation method thereof provided by the present invention will be described in detail with reference to the following examples.