CN111568787A - Multifunctional skin surface cleaning agent based on bentonite ore, preparation method and application thereof - Google Patents
Multifunctional skin surface cleaning agent based on bentonite ore, preparation method and application thereof Download PDFInfo
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- CN111568787A CN111568787A CN202010334037.3A CN202010334037A CN111568787A CN 111568787 A CN111568787 A CN 111568787A CN 202010334037 A CN202010334037 A CN 202010334037A CN 111568787 A CN111568787 A CN 111568787A
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- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 title claims abstract description 153
- 239000000440 bentonite Substances 0.000 title claims abstract description 70
- 229910000278 bentonite Inorganic materials 0.000 title claims abstract description 68
- 239000012459 cleaning agent Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000004519 grease Substances 0.000 claims abstract description 14
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims abstract description 11
- 239000002537 cosmetic Substances 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000011734 sodium Substances 0.000 claims description 49
- 239000000243 solution Substances 0.000 claims description 45
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 16
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 14
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 239000011780 sodium chloride Substances 0.000 claims description 7
- 239000002344 surface layer Substances 0.000 claims description 7
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 238000005341 cation exchange Methods 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000004108 freeze drying Methods 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims 1
- 229940092782 bentonite Drugs 0.000 description 41
- 238000001179 sorption measurement Methods 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 150000004702 methyl esters Chemical class 0.000 description 4
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229960005323 phenoxyethanol Drugs 0.000 description 2
- 229940080314 sodium bentonite Drugs 0.000 description 2
- 229910000280 sodium bentonite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- JRLTTZUODKEYDH-UHFFFAOYSA-N 8-methylquinoline Chemical group C1=CN=C2C(C)=CC=CC2=C1 JRLTTZUODKEYDH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000037380 skin damage Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000037072 sun protection Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/26—Aluminium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/20—Halogens; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/14—Preparations for removing make-up
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/008—Preparations for oily skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/10—Washing or bathing preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
- A61K2800/30—Characterized by the absence of a particular group of ingredients
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
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Abstract
The invention provides a preparation method of a multifunctional skin surface cleaning agent based on bentonite ore, which comprises the steps of removing impurities, carrying out Na saturation treatment, modifying bentonite with dodecyl trimethyl ammonium chloride, cleaning and purifying, and uniformly mixing a pure finished product of a proper amount of modified bentonite with Na saturated bentonite to obtain the multifunctional skin surface cleaning agent based on the bentonite ore. The invention also provides a multifunctional skin surface cleaning agent based on the bentonite ore and application thereof. The multifunctional skin surface cleaning agent based on the bentonite ore does not contain micromolecular organic matters, can effectively remove skin surface grease, heavy metals and cosmetic residues remained on the surface of the skin, and is wide in application.
Description
Technical Field
The invention belongs to the field of skin surface cleaning, and particularly relates to a multifunctional skin surface cleaning agent based on bentonite ore, a preparation method and application thereof.
Background
Along with the improvement of living standard of people, the degree of attention of people to the appearance image is gradually improved. Skin care products such as maintenance, beautification, sun protection and the like can not be left in daily life for many people. In some important occasions and working needs, many people can beautify themselves by cosmetic products such as makeup, however, the external decorations are required to be removed in time finally. Therefore, the makeup removing product is produced at the same time and becomes an indispensable daily product in the urban life of the modern times.
The common absorbent activated carbon or surfactant eluents are used for removing oil naturally secreted by a human body, and have some weaknesses, for example, the absorbent of the activated carbon type has no side effect, but the absorption performance is related to the surface area, the absorption is easy to saturate, the skin cleaning effect on high-oil content skin is poor, and the using amount is large. And the eluent of the surfactant can well remove grease, but has great damage to the skin.
The makeup remover for professional women or actors normally makes up again due to the working requirements, most of the makeup remover for making up again contains small molecular organic solvents (ethanol, phenoxyethanol, PEG-8 and the like), the small molecular organic substances are high in activity and good in solubility, most of applied makeup can be removed, and meanwhile, a small part of makeup remover possibly penetrates into the skin along with the small molecular organic substances and causes skin damage after long-term use. In addition, many cosmetics and skin care products contain heavy metals, and at present, few makeup removers are effective in removing heavy metals remaining on the skin surface.
In conclusion, a skin surface cleaning agent which does not contain small molecular organic matters and can effectively remove skin surface grease, heavy metals and cosmetic residues remained on the skin surface and a preparation method thereof are in need of development.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, the present invention aims to provide a method for preparing a multifunctional skin surface cleanser based on bentonite ore, so as to achieve the purposes of not containing small molecular organic matters and effectively removing skin surface grease, heavy metals and cosmetic residues remained on the skin surface.
The invention also aims to prepare the multifunctional skin surface cleanser of the bentonite ore by adopting the preparation method of the multifunctional skin surface cleanser based on the bentonite ore;
the invention also aims to adopt an application of the multifunctional skin surface cleaning agent of the bentonite ore.
In order to achieve the above objects and other related objects, the present invention provides a method for preparing a multifunctional skin surface cleanser based on bentonite ore, comprising the steps of:
step 1, impurity removal: adding a sodium carbonate solution into raw bentonite ore, fully stirring, standing for 6 hours, and taking a settling layer more than 5cm from the bottom of a container as pure bentonite mud;
step 2, Na saturation treatment: adding a sodium chloride solution into the pure bentonite mud obtained in the step 1, stirring for 6 hours, standing for 6 hours, removing a surface layer solution, adding pure water for washing, repeatedly washing for 2 times, and centrifugally drying to obtain Na saturated bentonite;
step 3, modifying bentonite: weighing a certain amount of Na saturated bentonite, adding the Na saturated bentonite into pure water for dilution to obtain a Na saturated bentonite solution, adding a dodecyl trimethyl ammonium chloride solution into the Na saturated bentonite solution, stirring for 12 hours, standing for 12 hours, and removing a surface layer aqueous solution to obtain modified bentonite mud;
and 4, cleaning and purifying: washing the modified bentonite mud prepared in the step 3 by pure water, repeating for 3 times, centrifuging and freeze-drying to obtain a pure finished product of the modified bentonite;
and 5, uniformly mixing a proper amount of the pure finished modified bentonite and Na saturated bentonite to obtain the multifunctional skin surface cleaning agent based on the bentonite ore.
Preferably, the mass ratio of the sodium carbonate to the bentonite raw ore in the step 1 is 1: 10-1: 30; the concentration of the sodium carbonate solution is 5-50 g/L.
Preferably, the mass ratio of the sodium carbonate to the bentonite raw ore in the step 1 is 1: 20.
Preferably, in the step 1, the particle size D50 of the raw mineral particles of bentonite is less than 30 μm, and the CEC value of the cation exchange capacity is 1.0-2.0 mmol/g.
Preferably, the sodium chloride solution in the step 2 is not less than 0.2 mol/L; the particle size D50 of the Na saturated bentonite is less than 3 μm, and the CEC value is more than 1.2 mmol/g.
Preferably, the volume ratio of the Na saturated bentonite solution to the dodecyl trimethyl ammonium chloride solution in the step 3 is 1: 50-10: 50; the Na saturated bentonite solution is in a saturated state; the concentration of the dodecyl trimethyl ammonium chloride solution is more than 5.0 g/L.
Preferably, the volume ratio of the pure water to the modified bentonite mud in the step 4 is 1: 1; the grain diameter D50 of the pure finished product of the modified bentonite is less than 5 mu m, and the CEC value is more than 1.0 mmol/g.
Preferably, the mass ratio of the pure finished modified bentonite to the Na saturated bentonite in the step 5 is 4: 6-8: 2.
The multifunctional skin surface cleaning agent based on the bentonite ore prepared by the preparation method.
By adopting the application of the multifunctional skin surface cleaning agent based on the bentonite ore,
when the mass ratio of the pure finished product of the modified bentonite to the Na saturated bentonite is 8:2, the prepared multifunctional skin surface cleaning agent based on the bentonite ore is used for removing makeup and cleaning skin during heavy makeup;
when the mass ratio of the pure finished product of the modified bentonite to the Na saturated bentonite is 6:4, the prepared multifunctional skin surface cleaning agent based on the bentonite ore is used for removing the grease on the skin surface;
when the mass ratio of the pure finished product of the modified bentonite to the Na saturated bentonite is 1:1 or 4:6, the prepared multifunctional skin surface cleaning agent based on the bentonite ore is used for removing grease, heavy metal and cosmetic residues on the skin surface.
The preparation method of the multifunctional skin surface cleaning agent based on the bentonite ore has the following beneficial effects:
1) according to the invention, the bentonite ore is adopted as the raw material, the storage capacity of the bentonite ore in China is the largest in the world, the quality is the best, the transportation cost can be reduced, and secondary pollution can not be generated without purification again;
2) the Na saturation treatment in the preparation process of the multifunctional skin surface cleanser enables the particles to be finer, improves the specific surface area of the particles, improves the surface adsorption performance, and greatly improves the adsorption capacity of the particles to organic matters such as grease and the like by the modified bentonite;
3) the multifunctional skin surface cleanser does not contain small molecular organic solvents (ethanol, phenoxyethanol, PEG-8 and the like) which are usually used in the traditional makeup removing products, and has no damage to the skin after being used;
4) the multifunctional skin surface cleanser can simultaneously remove grease, heavy metals and cosmetic residues on the skin surface, and particularly has obvious effect on removing the heavy cosmetics.
Drawings
FIG. 1 is a graph of the adsorption kinetics of C8 methyl ester (grease) with the multifunctional skin surface cleaner and activated carbon described in example 2 of the present invention;
FIG. 2 is a graph showing the adsorption kinetics of heavy metal lead (Pb) by the multifunctional skin surface cleaner and the raw ore according to example 3 of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The invention provides a preparation method of a multifunctional skin surface cleaning agent based on bentonite ore, which comprises the following steps:
step 1, impurity removal: adding a sodium carbonate solution into raw bentonite ore, fully stirring, standing for 6 hours, and taking a settling layer more than 5cm from the bottom of a container as pure bentonite mud;
step 2, Na saturation treatment: adding a sodium chloride solution into the pure bentonite mud obtained in the step 1, stirring for 6 hours, standing for 6 hours, removing a surface layer solution, adding pure water for washing, repeatedly washing for 2 times, and centrifugally drying to obtain Na saturated bentonite;
step 3, modifying bentonite: weighing a certain amount of Na saturated bentonite, adding the Na saturated bentonite into pure water for dilution to obtain a Na saturated bentonite solution, adding a dodecyl trimethyl ammonium chloride solution into the Na saturated bentonite solution, stirring for 12 hours, standing for 12 hours, and removing a surface layer aqueous solution to obtain modified bentonite mud;
and 4, cleaning and purifying: washing the modified bentonite mud prepared in the step 3 by pure water, repeating for 3 times, centrifuging and freeze-drying to obtain a pure finished product of the modified bentonite;
and 5, uniformly mixing a proper amount of the pure finished modified bentonite and Na saturated bentonite to obtain the multifunctional skin surface cleaning agent based on the bentonite ore.
In the step 1, the mass ratio of sodium carbonate to raw bentonite ore is 1: 10-1: 30; the concentration of the sodium carbonate solution is 5-50 g/L.
The mass ratio of the sodium carbonate to the bentonite raw ore in the step 1 is 1: 20.
In the step 1, the particle size D50 of raw mineral particles of bentonite is less than 30 μm, and the CEC value of the cation exchange capacity is 1.0-2.0 mmol/g.
In the step 2, the concentration of the sodium chloride solution is not less than 0.2 mol/L; the particle size D50 of the Na saturated bentonite is less than 3 μm, and the CEC value is more than 1.2 mmol/g.
In the step 3, the volume ratio of the Na saturated bentonite solution to the dodecyl trimethyl ammonium chloride solution is 1: 50-10: 50; the Na saturated bentonite solution is in a saturated state; the concentration of the dodecyl trimethyl ammonium chloride solution is more than 5.0 g/L.
In the step 4, the volume ratio of the pure water to the modified bentonite mud is 1: 1; the grain diameter D50 of the pure finished product of the modified bentonite is less than 5 mu m, and the CEC value is more than 1.0 mmol/g.
The mass ratio of the pure finished modified bentonite to the Na saturated bentonite in the step 5 is 4: 6-8: 2.
The multifunctional skin surface cleaning agent based on the bentonite ore prepared by the preparation method.
By adopting the application of the multifunctional skin surface cleaning agent based on the bentonite ore,
when the mass ratio of the pure finished product of the modified bentonite to the Na saturated bentonite is 8:2, the prepared multifunctional skin surface cleaning agent based on the bentonite ore is used for removing makeup and cleaning skin during heavy makeup;
when the mass ratio of the pure finished product of the modified bentonite to the Na saturated bentonite is 6:4, the prepared multifunctional skin surface cleaning agent based on the bentonite ore is used for removing the grease on the skin surface;
when the mass ratio of the pure finished product of the modified bentonite to the Na saturated bentonite is 1:1 or 4:6, the prepared multifunctional skin surface cleaning agent based on the bentonite ore is used for removing grease, heavy metal and cosmetic residues on the skin surface.
Example 1:
adding 1L of 5.0g/L sodium carbonate solution (prepared by pure water) into 100g of bentonite raw ore, fully stirring, standing for 6 hours, taking a sedimentation layer more than 5cm at the bottom of a container as pure bentonite mud, removing mud with large particles at the bottom, adding 0.2mol/L NaCl solution into the obtained pure bentonite mud, continuously stirring for 6 hours, standing for 6 hours, removing surface solution, and adding pure water for washing. Repeating the pure water washing operation for 2 times, and then drying to obtain Na saturated bentonite; adding 200g of Na saturated bentonite into pure water to a saturated state, adding 1L of 10g/L dodecyl trimethyl ammonium chloride solution (prepared by pure water), continuously stirring for 12 hours, standing for 12 hours, removing a surface layer aqueous solution to obtain modified bentonite mud, adding pure water, stirring and cleaning, continuously cleaning for 3 times, centrifuging, dehydrating, and freeze-drying to obtain a pure modified bentonite finished product, wherein in the following table 1, the basic physicochemical properties of the Na saturated bentonite and the pure modified bentonite finished product prepared by the preparation method are compared with those of a raw ore:
TABLE 1 basic physicochemical Properties of sodium bentonite and raw ore
As can be seen, the Cation Exchange Capacity (CEC), the specific surface area and the pore volume of the pure finished products of the sodium bentonite and the modified bentonite prepared by the preparation method are greatly improved, the particle size is obviously reduced, and good cation exchange and adsorption performances are shown.
Example 2:
preparing 50ml of 9C 8 methyl ester solutions with different concentrations of 0, 0.2, 0.4, 1.6, 2.4, 3.2, 4.8, 7.2 and 8.8mg/L, respectively adding the solutions into 50ml Agilent sample tubes, respectively adding 0.5g of active carbon or the skin surface cleanser prepared in example 1 (the mass ratio of a pure finished product of modified bentonite to Na saturated bentonite in the multifunctional skin surface cleanser is 8:2), wherein the solid-to-liquid ratio is 1:100, carrying out rotary equilibrium for 24 hours at room temperature to achieve adsorption equilibrium, and then measuring the concentration of C8 methyl ester in the solution to obtain adsorption kinetics.
As shown in figure 1, the initial adsorption rate of the activated carbon to the C8 methyl ester is high, but the adsorption balance is quickly achieved, the maximum adsorption capacity is 21.1mg/g, and the adsorption capacity of the multifunctional skin surface cleaner is continuously increased along with the increase of the concentration of the C8 methyl ester and is finally far greater than that of the activated carbon, which shows that the prepared skin surface cleaner has good adsorption performance to heavy grease and high removal capacity.
Example 3:
PbCl with different concentrations of 0, 0.04, 0.12, 0.16, 0.2, 0.24, 0.28 and 0.32 cmol/L8 is prepared2Adding 50ml of the solution into 50ml of Agilent sample tubes respectively, then adding 0.5g of raw bentonite ore or the multifunctional skin surface cleanser prepared in the example 1 respectively (the mass ratio of Na saturated bentonite to the pure finished product of the modified bentonite in the multifunctional skin surface cleanser is 1:1), wherein the solid-liquid ratio is 1:100, rotating and balancing for 24 hours at room temperature, and measuring the concentration of Pb in the solution after adsorption balance is achieved to obtain adsorption kinetics;
as shown in figure 2, the Na saturated bentonite has better adsorption capacity to heavy metals Pb, the pure finished product of the modified bentonite can enhance the adsorption capacity to Pb, and the adsorption capacity of the cleanser obtained by Na saturated and modified bentonite to Pb is improved by about 0.5-0.9 times, which indicates that the prepared skin surface cleanser has better adsorption and removal capacity to heavy metals.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A preparation method of a multifunctional skin surface cleaning agent based on bentonite ore is characterized by comprising the following steps:
step 1, impurity removal: adding a sodium carbonate solution into raw bentonite ore, fully stirring, standing for 6 hours, and taking a settling layer more than 5cm from the bottom of a container as pure bentonite mud;
step 2, Na saturation treatment: adding a sodium chloride solution into the pure bentonite mud obtained in the step 1, stirring for 6 hours, standing for 6 hours, removing a surface layer solution, adding pure water for washing, repeatedly washing for 2 times, and centrifugally drying to obtain Na saturated bentonite;
step 3, modifying bentonite: weighing a certain amount of Na saturated bentonite, adding the Na saturated bentonite into pure water for dilution to obtain a Na saturated bentonite solution, adding a dodecyl trimethyl ammonium chloride solution into the Na saturated bentonite solution, stirring for 12 hours, standing for 12 hours, and removing a surface layer aqueous solution to obtain modified bentonite mud;
and 4, cleaning and purifying: washing the modified bentonite mud prepared in the step 3 by pure water, repeating for 3 times, centrifuging and freeze-drying to obtain a pure finished product of the modified bentonite;
and 5, uniformly mixing a proper amount of the pure finished modified bentonite and Na saturated bentonite to obtain the multifunctional skin surface cleaning agent based on the bentonite ore.
2. The preparation method of the bentonite-based multifunctional skin surface cleaner according to claim 1, wherein the mass ratio of sodium carbonate to raw bentonite ore in step 1 is 1: 10-1: 30; the concentration of the sodium carbonate solution is 5-50 g/L.
3. The method for preparing the bentonite-based multifunctional skin surface cleaner according to claim 2, wherein the mass ratio of the sodium carbonate to the raw bentonite ore in the step 1 is 1: 20.
4. The method for preparing a multifunctional bentonite-based skin surface cleaner according to claim 3, wherein the particle size D of the raw mineral particles of bentonite in the step 1 is the same as that of the raw mineral particles of bentonite50Less than 30 μm, and the CEC value of the cation exchange capacity is 1.0-2.0 mmol/g.
5. The method for preparing a bentonite-based multifunctional skin surface cleaner according to claim 4, wherein the sodium chloride solution is not less than 0.2mol/L in the step 2; particle diameter D of Na-saturated bentonite50Less than 3 μm, CEC greater than 1.2 mmol/g.
6. The method for preparing the bentonite ore-based multifunctional skin surface cleaner according to claim 5, wherein the volume ratio of the Na saturated bentonite solution to the dodecyl trimethyl ammonium chloride solution in the step 3 is 1: 50-10: 50; the Na saturated bentonite solution is in a saturated state; the concentration of the dodecyl trimethyl ammonium chloride solution is more than 5.0 g/L.
7. The method for preparing the bentonite-based multifunctional skin surface cleaner according to claim 6, wherein the volume ratio of pure water to the modified bentonite clay in the step 4 is 1: 1; modified bentonite pure finished product particle size D50Less than 5 μm, CEC greater than 1.0 mmol/g.
8. The preparation method of the bentonite-ore-based multifunctional skin surface cleaner according to claim 7, wherein the mass ratio of the pure finished modified bentonite to the Na saturated bentonite in the step 5 is 4: 6-8: 2.
9. A multifunctional bentonite-based skin surface cleaner, which is characterized in that the multifunctional bentonite-based skin surface cleaner prepared by the preparation method of any one of claims 1 to 8 is adopted.
10. Use of the bentonite-based multifunctional skin surface cleaner of claim 9,
when the mass ratio of the pure finished product of the modified bentonite to the Na saturated bentonite is 8:2, the prepared multifunctional skin surface cleaning agent based on the bentonite ore is used for removing makeup and cleaning skin during heavy makeup;
when the mass ratio of the pure finished product of the modified bentonite to the Na saturated bentonite is 6:4, the prepared multifunctional skin surface cleaning agent based on the bentonite ore is used for removing the grease on the skin surface;
when the mass ratio of the pure finished product of the modified bentonite to the Na saturated bentonite is 1:1 or 4:6, the prepared multifunctional skin surface cleaning agent based on the bentonite ore is used for removing grease, heavy metal and cosmetic residues on the skin surface.
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Cited By (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114425032A (en) * | 2021-12-23 | 2022-05-03 | 湖南人文科技学院 | Moisturizing and anti-inflammatory composition and preparation method and application thereof |
| CN114425032B (en) * | 2021-12-23 | 2023-05-12 | 湖南人文科技学院 | Moisturizing and anti-inflammatory composition and preparation method and application thereof |
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