Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the invention is to provide a composition with large foam quantity and good stability.
In order to solve the technical problems, the invention adopts the technical scheme that the cleaning composition comprises the following components in parts by mass:
1-2 parts of hydroxypropyl starch phosphate;
0.5-1 part of hydrophobic modified silica;
8-20 parts of amphiphilic sodium chloride crystal particles;
50-80 parts of deionized water;
the particle size of the hydrophobic modified silica is a fixed particle size, and the fixed particle size is preferably 11um and is subjected to hydrophobic modification treatment by triethoxycaprylylsilane.
The amphiphilic sodium chloride crystal particles are embedded on the surfaces of the sodium chloride crystal particles in a physical adsorption mode by adopting hexadecyl trimethyl ammonium bromide and have an amphiphilic cubic structure.
The rheological modifier which is based on the hydroxypropyl starch phosphate and is subjected to pre-gelatinization treatment can be rapidly dispersed in cold water, assists in emulsification stability, increases the appearance and establishes the viscosity, and has the effect of enabling foams to be finer and richer in washing-off products.
Another technical problem to be solved by the present invention is a method for preparing a cleaning composition, comprising the steps of:
(1) adding hydroxypropyl starch phosphate into deionized water at normal temperature, and stirring until the hydroxypropyl starch phosphate is dissolved uniformly to obtain a mixture A;
(2) adding the amphiphilic sodium chloride crystal particles into the mixture A at normal temperature, and uniformly stirring and dissolving to obtain a mixture B;
(3) and adding the hydrophobically modified silica into the mixture B at normal temperature, and stirring to dissolve uniformly to obtain the cleaning composition.
The invention provides a cleansing bubble, which comprises the following components in parts by mass:
3-5 parts of polyol;
0.8-1.1 parts of a preservative;
10-95 parts of a cleaning composition;
0.06-0.6 part of skin conditioner.
The polyalcohol is at least one of sorbitol and 1, 3-butanediol;
the preservative is at least one of phenoxyethanol and ethylhexyl glycerol;
the skin conditioner is at least one of sodium hyaluronate and polyquaternium-7.
Compared with the prior art, the product has more foams, is more exquisite and is more stable; can effectively clean oily skin and simultaneously can not cause excessive cleaning damage to dry skin.
Detailed Description
The following examples and experiments are provided to further illustrate the embodiments of the present invention, but are not intended to limit the present invention.
Example 1
The preparation method of the amphiphilic sodium chloride crystal particles comprises the following steps:
preparing a saturated sodium chloride suspension of hexadecyl trimethyl ammonium bromide with the concentration of 450ppm, continuously stirring for 2h till the solution is completely uniform, heating to boiling at the temperature of 106 +/-2 ℃, and adsorbing hexadecyl trimethyl ammonium bromide on sodium chloride after water is completely evaporated to form crystal particles.
Example 2
The proportion of the cleaning composition is as follows:
the preparation method of the cleaning composition comprises the following steps:
(1) adding hydroxypropyl starch phosphate into deionized water at normal temperature, and stirring until the hydroxypropyl starch phosphate is dissolved uniformly to obtain a mixture A;
(2) adding the amphiphilic sodium chloride crystal particles into the mixture A at normal temperature, and uniformly stirring and dissolving to obtain a mixture B;
(3) and adding the hydrophobically modified silica into the mixture B at normal temperature, and stirring to dissolve uniformly to obtain the cleaning composition.
Example 3
The cleansing bubble comprises the following components in parts by mass:
1 part of sorbitol, 2 parts of 1, 3-butanediol, 55 parts of cleaning composition C, 0.5 part of phenoxyethanol, 0.4 part of ethylhexyl glycerol, 0.01 part of sodium hyaluronate and-70.05 parts of polyquaternium;
the preparation method comprises the following steps: stirring and dispersing sodium hyaluronate 1, 3-butanediol and sorbitol at the normal temperature under 500rpm/min uniformly, adding the cleaning composition, heating to 80 ℃, stirring uniformly under 500rpm/min, cooling to 45 ℃, adding phenoxyethanol, ethylhexyl glycerol and polyquaternium-7 respectively, stirring and dispersing uniformly to obtain a finished product.
Example 4
The cleansing bubble comprises the following components in parts by mass:
2 parts of sorbitol, 3 parts of 1, 3-butanediol, 10 parts of cleaning composition A, 0.1 part of phenoxyethanol, 0.9 part of ethylhexyl glycerol, 0.1 part of sodium hyaluronate and 70.5 parts of polyquaternium;
example 5
The cleansing bubble comprises the following components in parts by mass:
1.5 parts of sorbitol, 2.5 parts of 1, 3-butanediol, 95 parts of cleaning composition B, 1 part of phenoxyethanol, 0.1 part of ethylhexyl glycerol, 0.05 part of sodium hyaluronate and 70.3 parts of polyquaternium;
example 6
The cleansing bubble comprises the following components in parts by mass:
1 part of sorbitol, 3 parts of 1, 3-butanediol, 70 parts of cleaning composition A, 0.5 part of phenoxyethanol, 0.3 part of ethylhexyl glycerol, 0.04 part of sodium hyaluronate and 70.2 parts of polyquaternium;
comparative example 1
A cleansing bubble having the following composition as compared to example 3: no hydrophobically modified silica was added to cleaning composition C.
Comparative example 2
A cleansing bubble having the following composition as compared to example 3: no hydroxypropyl starch phosphate was added to cleaning composition C.
Comparative example 3
A cleansing bubble having the following composition as compared to example 3: sodium laureth sulfate was used instead of the amphiphilic sodium chloride crystal particles in cleaning composition C, with the remaining parameters being the same as in example 3.
Comparative example 4
A cleansing bubble having the following composition as compared to example 3: cleaning composition C had 30um silica instead of 11um silica, with the remaining parameters being the same as in example 3.
Comparative example 4.1
A cleansing bubble having the following composition as compared to example 3: cleaning composition C had 20um silica instead of 11um silica, with the remaining parameters being the same as in example 3.
Comparative example 4.2
A cleansing bubble having the following composition as compared to example 3: cleaning composition C had 25um silica instead of 11um silica, with the remaining parameters being the same as in example 3.
Comparative example 5
A cleansing bubble having the following composition as compared to example 3: cleaning composition C had 8um silica instead of 11um silica, with the remaining parameters being the same as in example 3.
Comparative example 5.1
A cleansing bubble having the following composition as compared to example 3: cleaning composition C had 6um silica instead of 11um silica, with the remaining parameters being the same as in example 3.
Comparative example 5.2
A cleansing bubble having the following composition as compared to example 3: cleaning composition C had 4um of silica instead of 11um of silica, with the remaining parameters being the same as in example 3.
Comparative example 6
The cleansing bubble comprises the following components in parts by mass:
1 part of sorbitol, 2 parts of 1, 3-butanediol, 55 parts of cleaning composition D, 0.5 part of phenoxyethanol, 0.4 part of ethylhexyl glycerol, 0.01 part of sodium hyaluronate and-70.05 parts of polyquaternium;
comparative example 7
The cleansing bubble comprises the following components in parts by mass:
1 part of sorbitol, 2 parts of 1, 3-butanediol, 55 parts of cleaning composition E, 0.5 part of phenoxyethanol, 0.4 part of ethylhexyl glycerol, 0.01 part of sodium hyaluronate and-70.05 parts of polyquaternium;
to better illustrate the benefits of the cleansing composition, cleansing bubbles containing the cleansing composition were taken and subjected to the following efficacy evaluation experiments:
(I) efficacy test:
the lather capacity test, i.e., foam height and foam stability test, was performed on the cleansing bubbles.
Foam properties were determined using the Ross-Miles method: taking 2.5g of the cleansing foam samples provided by application examples 3-6 and application comparative examples 1-5, adding 900mL of distilled water for dissolving, adding 100mL of 1500mg/kg hard water, heating to 40 ℃, taking 200mL of each sample solution to flow down from a pore with the height of 900mm and the inner diameter of 2.9mm, flushing into 50mL of sample solutions with the same temperature and concentration, recording the foam height when the 200mL of sample solution flows out as the foaming capability evaluation index of the sample to be tested, taking the foam height after foaming for 5min as the foam stability evaluation index, testing for three times, calculating the average value of each group after averaging, and keeping the average value to an integer number.
It can be seen from the above examples that the amount of foam increases with increasing amounts of cleaning composition, and that the foam with only amphiphilic sodium chloride crystal particles is too large and not sufficiently dense and not long lasting. The hydrophobically modified silica can stabilize the foam for a longer time and is more delicate, particularly, the effect is best only when the fixed particle size of the hydrophobically modified silica is 11um, and the effect is influenced by the particle size which is too large or too small, which is also a result obtained by accidental discovery and verification in experiments; the addition of hydroxypropyl starch phosphate allows the composition to be protected from over-cleansing for dry skin and effective cleansing for oily skin. And the hydroxypropyl starch phosphate can prevent the over-cleaning effect on dry skin only when being matched with the hydrophobic modified silica and the amphiphilic sodium chloride crystal particles, and has no obvious effect when being matched with the traditional surfactant such as sodium laureth sulfate. Therefore, although the hydroxypropyl starch phosphate has a certain oil absorption capacity and a certain oil and fat cleaning effect, which is common knowledge, the person skilled in the art cannot expect that the hydroxypropyl starch phosphate can protect dry skin under the cleaning effect of the amphiphilic sodium chloride crystal particles, and cannot expect that the hydroxypropyl starch phosphate can be synergistic with the amphiphilic sodium chloride crystal particles to enhance the cleaning effect of the whole composition on oily skin, which is unexpected effect. In particular, the effect is best only when the fixed particle size of the hydrophobically modified silica is 11 μm.
(II) erythrocyte hemolysis safety performance test experiment:
preparation of the erythrocyte suspension: selecting healthy rabbits, taking 9mL of blood from heart, adding 1mL of 2% potassium oxalate solution, centrifuging, discarding supernatant, diluting the precipitate to 20mL with 20mol/L PBS solution, and storing at 4 ℃ for later use. Selected samples were diluted to different concentrations with PBS solution and 5 concentration gradients were set for each sample. Taking 10mL of a dilution of a sample to be tested, adding 200uL of the erythrocyte suspension (controlling the sample concentration to be 5, 10, 20, 50 and 100 mg/mL), taking distilled water as a whole-hemolyzing control, taking a PBS solution as a negative control, mixing the mixture gently, incubating the mixture at 37 ℃ for 30min, centrifuging the mixture at the rotating speed of 2000r/min for 10min, taking a supernatant, testing the absorbance of the supernatant at 560nm by using a spectrophotometer (A560), and calculating the hemolysis rate according to the following formula:
a standard curve of hemolysis rate vs. sample concentration was plotted and the sample concentration at which 50% of the erythrocytes were hemolyzed was calculated (HD 50).
(III) protein denaturation experiment:
diluting a sample to 10g/L by using a PBS (phosphate buffer solution), taking 10mL of a diluent of a sample to be detected, adding 200uL of the erythrocyte suspension, taking distilled water as a blank control, taking a 1mg/mL Sodium Dodecyl Sulfate (SDS) solution as a positive control, gently mixing, incubating for 30min at 37 ℃, centrifuging for 10min at the rotating speed of 2000r/min, taking a supernatant, respectively testing the absorbances A540 and A575 at 540nm and 575nm by using a spectrophotometer, and calculating the protein Denaturation Index (DI) according to the following formula;
wherein R1= blank control group a 575/blank control group a540, R2= experiment group a 575/experiment group a540, R3= positive control group a 575/positive control group a 540. The samples to be tested were evaluated for their irritability according to the L/D value, which is HD50/DI, and the red blood cell hemolysis test irritability rating scale is given in Table 1 below:
the results of the hemolysis test and the protein denaturation test of the above examples are shown in the following table 2:
as can be seen from the table, the L/D value of the product of each embodiment of the invention is more than 100, and the product is safe and non-irritant to human bodies.
(IV) oil clearance test
Selecting 100 volunteers, wherein 50 dry skin subjects (randomly divided into 5 groups and 10 persons in each group) and 50 oily skin subjects (randomly divided into 5 groups and 10 persons in each group), taking the fixed parts of the cheeks and the forehead of the subjects as test areas, measuring the skin oil content of each subject before cleaning the face and the oil content of each subject after cleaning the face by using a CBS (cone beam spot) skin analysis system in an environment at 25 ℃, calculating the oil clearance according to the following formula, and taking the arithmetic mean value of the oil clearance, and inspecting the cleaning effect of the facial cleanser product on the oily skin and the dry skin, wherein the measurement results are as follows:
it is well known that healthy skin needs some oil to be moisturized, and that dry skin needs to remove more of the heavy soils, the less oil removed the better, and that when 19.6% oil clean has been cleaned at a higher level, while oily skin has been removed at 43.5%, the face still feels too oily, and the oil removal is relatively insufficient. Therefore, as can be seen from the above table, when the amphiphilic sodium chloride crystal particles are used alone, the oil removal rate is low for oily skin, and is excessive for dry skin. Example 3, to which the composition of the present invention was added, had moderate oil removal rates for both oily and dry skin, and was suitable for both dry and oily skin. The comparative example 1 without the hydrophobic modified silica and the comparative example 2 without the hydroxypropyl starch phosphate have no ideal effect, and have excessive dry skin oil clearance and insufficient oily skin oil clearance. In addition, in comparative example 3 in which amphiphilic sodium chloride crystal particles were replaced with sodium laureth sulfate, the removal rate of oil from oily skin was inferior to that of example 3, and the removal rate of oil from dry skin was too high, which easily caused phenomena such as tightness and allergy.
Compared with the prior art, the product has more foams, is more exquisite and more stable; can effectively clean oily skin and simultaneously can not cause excessive cleaning damage to dry skin.
The embodiments of the present invention have been described in detail with reference to the examples, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.