CN113693063A - Efficient antibacterial cream and preparation method thereof - Google Patents
Efficient antibacterial cream and preparation method thereof Download PDFInfo
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- CN113693063A CN113693063A CN202110908771.0A CN202110908771A CN113693063A CN 113693063 A CN113693063 A CN 113693063A CN 202110908771 A CN202110908771 A CN 202110908771A CN 113693063 A CN113693063 A CN 113693063A
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- antibacterial
- cream
- antibacterial cream
- bacteriostatic agent
- softener
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/07—Nitrogen-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Paper (AREA)
Abstract
The invention discloses a high-efficiency antibacterial cream which comprises the following preparation raw materials in parts by weight: 55-75 parts of liquid pure water, 3-5 parts of glycerol, 0.01-0.05 part of bacteriostatic agent, 0.3-0.8 part of softening agent and 0.5-1 part of stearate. According to the efficient antibacterial cream, the antibacterial effect of the paper towel can be improved and the antibacterial activity time of the paper towel can be prolonged by preferably selecting the type and weight ratio of the antibacterial agent and the glycerol, and the paper towel has soft hand feeling and good affinity with skin after the antibacterial cream is acted on the paper towel by preferably selecting the type and weight ratio of the softening agent and the glycerol.
Description
Technical Field
The invention relates to an efficient antibacterial cream and a preparation method thereof, and mainly relates to a papermaking slurry composition in the papermaking field.
Background
With the development of society, people increasingly find that many diseases are caused by surrounding bacteria, and particularly for people with low immunity, the diseases are caused by bacteria infection. The paper towel is a necessity in life of people, and if the paper towel has a bacteriostatic function, the cleanliness of the surrounding environment of people can be improved to a great extent. Reducing the incidence of the disease. However, the existing method for producing the antibacterial paper towel has the problems of weak antibacterial property and short antibacterial aging. The patent CN201610207789.7 uses aloe, soapberry, coptis root and the like as bactericides, the sterilization effect is not obvious, and the required sterilization time is long. Patent cn201910841012.x uses silver nitrate as a bacteriostatic agent, needs a large amount of antibacterial agent, has a hidden danger of toxin formation, has low binding force between silver ions and paper fibers, is easy to precipitate and denature, and reduces the antibacterial effect of the paper towel.
Disclosure of Invention
In order to improve the antibacterial performance of the paper towel and prolong the antibacterial activity aging of the paper towel, the first aspect of the invention provides a high-efficiency antibacterial cream, which comprises the following preparation raw materials in parts by weight: 55-75 parts of liquid pure water, 3-5 parts of glycerol, 0.01-0.05 part of bacteriostatic agent, 0.3-0.8 part of softening agent and 0.5-1 part of stearate.
As a preferred embodiment, the pure water liquid is pure water obtained by a high-temperature process, and is purchased from drochen.
As a preferred embodiment, the glycerol is pharmacopoeia grade glycerol having a purity of 99.5% or more, available from Meclin reagent.
As a preferred embodiment, the bacteriostatic agent is selected from one or a combination of several of organic bacteriostatic agent, inorganic bacteriostatic agent, natural bacteriostatic agent and composite bacteriostatic agent.
As a preferred embodiment, the inorganic bacteriostatic agent is a combination of an adsorption carrier and nano metal ions.
As a preferred embodiment, the adsorption carrier is selected from one or a combination of more of bentonite, attapulgite, tourmaline, modified starch, modified cellulose and diatomite.
As a preferred embodiment, the nano metal ions are selected from one or a combination of several of nano zinc oxide, nano silver, nano titanium dioxide and nano copper.
In a preferred embodiment, the particle size of the nano metal ions is 40 to 60 nm.
As a preferred embodiment, the antibacterial agent is sodium bentonite-loaded nano zinc oxide, and the weight ratio of the sodium bentonite to the nano zinc oxide is 1: (5-8).
As a preferred embodiment, the method for preparing the antibacterial agent is as follows: dissolving N-beta- (aminoethyl) -gamma-aminopropyl methyl dimethoxysilane in acetone, adding sodium bentonite, mixing and stirring for 30-60min, adding nano zinc oxide, continuously stirring for 30-60min, filtering, placing a filter cake in a muffle furnace for burning at 160 ℃ for 20-30min, grinding and sieving the burned solid, and finally obtaining the bentonite-loaded nano zinc oxide antibacterial agent with the particle size of 0.1-1 mu m.
In the experimental process, the applicant finds that the prepared antibacterial cream is added into the production slurry of the paper towel, so that the antibacterial cream can be uniformly dispersed in a paper structure, a better antibacterial effect can be realized by a smaller addition amount of an antibacterial agent, the release of antibacterial activity has a certain slow-release effect, and a longer-time antibacterial function can be achieved, and the probable reason is guessed as follows: the bentonite-loaded nano zinc oxide with the antibacterial active ingredient has better adsorption force with paper fibers, and in a slurry system, the bentonite-loaded nano zinc oxide with the particle size of 90-100nm can be uniformly dispersed in a paper structure, and cannot generate great influence on other additives and fillers in the slurry and influence the adhesion between the other additives and fillers and the paper fibers. The weight ratio of the bentonite to the nano zinc oxide is 1: (5-8) the bentonite-loaded nano zinc oxide has higher retention efficiency in paper fibers, a certain amount of antibacterial active ingredients are arranged on the surface and inside of a paper structure, the concentration of the antibacterial ingredients on the surface of the paper is proper, the sterilization effect is realized, toxicity is not generated, and the use is safer. The particle size of zinc oxide in the zinc oxide carried by the bentonite is 40-60nm, the binding force between the zinc oxide and the bentonite is strong, and the zinc oxide as an antibacterial agent can be stably retained in paper, so that the paper has lasting antibacterial property.
In a preferred embodiment, the softener is one or a combination of several selected from tertiary amine softeners, quaternary ammonium salt softeners, imidazole softeners, dialkyl dimethyl ammonium softeners and silicone softeners.
As a preferred embodiment, the softening agent is dioctadecyldimethylammonium chloride.
In the experimental process, the applicant finds that the dioctadecyl dimethyl ammonium chloride serving as the softening agent acts on the paper towel, the handfeel softness of the paper towel can be improved, the nano zinc oxide in the system acts together, the antibacterial effect of the paper towel can be further improved, and the prepared paper towel is not easy to yellow.
As a preferred embodiment, the stearate is selected from one or more of glyceryl tristearate, propylene glycol monostearate, ethylene glycol monostearate, and pentaerythritol distearate.
As a preferred embodiment, the stearate is propylene glycol monostearate and pentaerythritol distearate in a weight ratio of 1: (2-3).
During the experiments the applicant found that a combination of propylene glycol monostearate and pentaerythritol distearate was added in a weight ratio of 1: (2-3), the compatibility of the softener with liquid pure water can be improved, and the stability of the softener in the system can be improved.
The second aspect of the invention provides a preparation method of high-efficiency antibacterial cream, which comprises the following steps:
adding glycerol, bacteriostatic agent, softener and stearate into liquid pure water, mixing and stirring for 30-60min to obtain the antibacterial cream.
As a preferred embodiment, the method for using the high-efficiency antibacterial cream comprises the following steps: and adding the high-efficiency antibacterial cream into papermaking slurry, mixing and stirring uniformly, and making paper to obtain the paper with the antibacterial function.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the efficient antibacterial cream disclosed by the invention, the antibacterial cream is applied to the paper towel by preferably selecting the type and weight ratio of the antibacterial agent, so that the antibacterial effect of the paper towel can be improved, and the antibacterial activity time of the paper towel is prolonged.
(2) According to the efficient antibacterial cream, the type and the weight ratio of the antibacterial agent are optimized, a relatively small amount of the antibacterial agent can be used, a relatively good antibacterial effect can be realized, potential toxicity hazards are avoided on the basis of ensuring the antibacterial property, and the efficient antibacterial cream is relatively safe to use.
(3) According to the efficient antibacterial cream, the type and weight ratio of the softening agent to the glycerin are preferably selected, so that after the antibacterial cream is acted on a paper towel, the paper towel has soft hand feeling and good affinity with skin.
(4) According to the efficient antibacterial cream, the weight ratio of the glycerol to the stearate is preferably selected, so that the antibacterial cream has good adaptability to paper, and the retention rate of active ingredients in the cream in the paper is improved.
(5) The efficient antibacterial cream has good stability, does not cause the problem of floating oil layering even after long-term storage, and has good temperature stability and shear stability.
Detailed Description
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Example 1
The efficient antibacterial cream comprises the following preparation raw materials in parts by weight: 65 parts of liquid pure water, 4 parts of glycerol, 0.03 part of bacteriostatic agent, 0.5 part of softening agent and 0.6 part of stearate.
The liquid pure water is purchased from Drech.
The glycerol is pharmacopoeia-grade glycerol with the purity of more than or equal to 99.5 percent and is purchased from Mecline reagent company.
The softener is dioctadecyl dimethyl ammonium chloride, and is purchased from Shandong national chemical Co.
The stearic acid ester is propylene glycol monostearate and pentaerythritol distearate, and the weight ratio of the stearic acid ester to the propylene glycol monostearate to the pentaerythritol distearate is 1: 2.5.
the antibacterial agent is sodium bentonite loaded nano zinc oxide, and the preparation method comprises the following steps: dissolving N-beta- (aminoethyl) -gamma-aminopropyl methyl dimethoxysilane in acetone, adding sodium bentonite, mixing and stirring for 50min, adding nano zinc oxide, continuously stirring for 50min, filtering, placing a filter cake in a muffle furnace, igniting for 25min at 150 ℃, grinding and sieving the ignited solid, and finally obtaining the bentonite-loaded nano zinc oxide antibacterial agent with the particle size of 0.8 mu m.
The particle size of the nano zinc oxide is 50nm, and the nano zinc oxide is purchased from Meclin reagent company.
The weight ratio of the sodium bentonite to the nano zinc oxide is 1: 7, the adding amount of the N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane is 3 percent of the mass fraction of the sodium bentonite.
The sodium bentonite is purchased from Hebei Jianshi New materials science and technology Limited.
A preparation method of high-efficiency antibacterial cream comprises the following steps: adding glycerol, bacteriostatic agent, softener and stearate into liquid pure water, mixing and stirring for 50min to obtain the antibacterial cream.
And adding the high-efficiency antibacterial cream into papermaking slurry, mixing and stirring uniformly, and making paper to obtain the paper with the antibacterial function.
Example 2
The efficient antibacterial cream comprises the following preparation raw materials in parts by weight: 55 parts of liquid pure water, 3 parts of glycerol, 0.02 part of bacteriostatic agent, 0.4 part of softening agent and 0.7 part of stearate.
The liquid pure water is purchased from Drech.
The glycerol is pharmacopoeia-grade glycerol with the purity of more than or equal to 99.5 percent and is purchased from Mecline reagent company.
The softening agent is ester-based quaternary ammonium salt and is purchased from chemical industry Co., Ltd.
The stearic acid ester is ethylene glycol monostearate and pentaerythritol distearate, and the weight ratio is 1: 2.
the antibacterial agent is calcium bentonite loaded nano zinc oxide, and the preparation method comprises the following steps: dissolving N, N-diethyl-3-aminopropyl trimethoxy silane in acetone, adding calcium bentonite, mixing and stirring for 40min, adding nano zinc oxide, continuing stirring for 40min, filtering, putting a filter cake in a muffle furnace, igniting for 20min at 145 ℃, grinding and sieving the ignited solid, and finally obtaining the bentonite-loaded nano zinc oxide antibacterial agent with the particle size of 1 micron.
The particle size of the nano zinc oxide is 45nm, and the nano zinc oxide is purchased from Meclin reagent company.
The weight ratio of the calcium bentonite to the nano zinc oxide is 1: 6, the adding amount of the N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane is 3 percent of the mass fraction of the calcium bentonite.
The calcium bentonite is purchased from Hebei Jianshi New materials science and technology limited.
A preparation method of high-efficiency antibacterial cream comprises the following steps: adding glycerol, bacteriostatic agent, softener and stearate into liquid pure water, mixing and stirring for 30min to obtain the antibacterial cream.
And adding the high-efficiency antibacterial cream into papermaking slurry, mixing and stirring uniformly, and making paper to obtain the paper with the antibacterial function.
Example 3
The specific steps of the efficient antibacterial cream and the preparation method thereof are the same as example 1, and the difference is that the particle size of the nano zinc oxide is 90nm, and the nano zinc oxide is purchased from Mecline reagent company.
Example 4
The specific steps of the efficient antibacterial cream and the preparation method thereof are the same as example 1, and the difference is that the weight ratio of the sodium bentonite to the nano zinc oxide is 1: 1.
example 5
The specific steps of the efficient antibacterial cream and the preparation method thereof are the same as example 1, and the difference is that the particle size of the finally prepared bentonite-loaded nano zinc oxide antibacterial agent is 50 microns.
Performance testing
1. And (3) testing the antibacterial rate: and testing the antibacterial rate of the prepared high-efficiency antibacterial cream according to GB/T21510-2008 test standards.
2. And (3) testing antibacterial time: after the high-efficiency antibacterial cream is placed for 48 hours, the antibacterial rate of the prepared high-efficiency antibacterial cream is tested according to GB/T21510-
3. And (3) stability testing: and (3) after the high-efficiency antibacterial cream is placed at the temperature of 20 ℃ for 1 year, observing the appearance of the high-efficiency antibacterial cream.
Examples 1-5 were tested according to the criteria described above and the results are shown in table 1.
TABLE 1
Claims (10)
1. The efficient antibacterial cream is characterized by comprising the following preparation raw materials in parts by weight: 55-75 parts of liquid pure water, 3-5 parts of glycerol, 0.01-0.05 part of bacteriostatic agent, 0.3-0.8 part of softening agent and 0.5-1 part of stearate.
2. The cream of claim 1, wherein the bacteriostatic agent is selected from one or more of organic bacteriostatic agent, inorganic bacteriostatic agent, natural bacteriostatic agent and composite bacteriostatic agent.
3. The cream of claim 2, wherein the inorganic bacteriostatic agent is a combination of an adsorption carrier and nano metal ions.
4. The high-efficiency antibacterial cream according to claim 3, wherein the adsorption carrier is selected from one or more of bentonite, attapulgite, tourmaline, modified starch, modified cellulose and diatomite.
5. The highly effective antibacterial cream according to claim 3, wherein the nano metal ions are selected from one or more of nano zinc oxide, nano silver, nano titanium dioxide and nano copper.
6. The highly effective antibacterial cream as claimed in claim 3, wherein the particle size of said nano metal ions is 40-60 nm.
7. The high-efficiency antibacterial cream according to claim 1, wherein the softener is one or a combination of several of tertiary amine softener, quaternary ammonium salt softener, imidazole softener, dialkyl dimethyl ammonium softener and organosilicon softener.
8. The highly effective antibacterial cream according to claim 1, wherein said stearate is selected from one or more of glyceryl tristearate, propylene glycol monostearate, ethylene glycol monostearate, pentaerythritol distearate.
9. A method for preparing the highly effective antibacterial cream according to any one of claims 1 to 8, comprising the steps of:
adding glycerol, bacteriostatic agent, softener and stearate into liquid pure water, mixing and stirring for 30-60min to obtain the antibacterial cream.
10. The high-efficiency antibacterial cream is characterized in that the use method of the high-efficiency antibacterial cream is as follows: and adding the high-efficiency antibacterial cream into papermaking slurry, mixing and stirring uniformly, and making paper to obtain the paper with the antibacterial function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110908771.0A CN113693063A (en) | 2021-08-09 | 2021-08-09 | Efficient antibacterial cream and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110908771.0A CN113693063A (en) | 2021-08-09 | 2021-08-09 | Efficient antibacterial cream and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114306158A (en) * | 2021-12-29 | 2022-04-12 | 福建恒安集团有限公司 | Antibacterial moisturizing paper and preparation method thereof |
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| CN111067917A (en) * | 2019-12-10 | 2020-04-28 | 北京桃古图生物科技有限公司 | Composite material loaded with nano zinc oxide and preparation method thereof |
| CN111821203A (en) * | 2020-06-22 | 2020-10-27 | 浙江新远实业有限公司 | Antibacterial cream for baby soft tissue and preparation method of baby soft tissue |
| CN112553958A (en) * | 2019-09-10 | 2021-03-26 | 金红叶纸业集团有限公司 | Antibacterial paper for daily use |
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2021
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| US20050271710A1 (en) * | 2004-06-04 | 2005-12-08 | Argo Brian P | Antimicrobial tissue products with reduced skin irritation potential |
| CN102871867A (en) * | 2012-10-24 | 2013-01-16 | 金红叶纸业集团有限公司 | Cream composition and paper using same |
| CN107793581A (en) * | 2017-10-26 | 2018-03-13 | 成都新柯力化工科技有限公司 | A kind of efficient antibacterial plastic concentrate and preparation method |
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| CN112553958A (en) * | 2019-09-10 | 2021-03-26 | 金红叶纸业集团有限公司 | Antibacterial paper for daily use |
| CN111067917A (en) * | 2019-12-10 | 2020-04-28 | 北京桃古图生物科技有限公司 | Composite material loaded with nano zinc oxide and preparation method thereof |
| CN111821203A (en) * | 2020-06-22 | 2020-10-27 | 浙江新远实业有限公司 | Antibacterial cream for baby soft tissue and preparation method of baby soft tissue |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114306158A (en) * | 2021-12-29 | 2022-04-12 | 福建恒安集团有限公司 | Antibacterial moisturizing paper and preparation method thereof |
| CN114306158B (en) * | 2021-12-29 | 2024-01-09 | 福建恒安集团有限公司 | Antibacterial moisturizing paper and preparation method thereof |
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Application publication date: 20211126 |