Skin cleaning agent for cleaning attached silicon powder and preparation method of skin cleaning agent

Abstract

The invention discloses a skin cleaning agent for cleaning attached silicon powder and a preparation method of the skin cleaning agent, and belongs to the technical field of daily chemical industry. The skin cleanser comprises the following components in percentage by mass: 5-10% of a surfactant, 0.1-0.35% of micron-sized decontamination particles, 0.5-4% of a humectant, 1-4% of an aloe extract, 0.5-1% of tea tree oil, 0.5-1% of perfume, 0.1-0.5% of a pH regulator, 0.5-0.8% of a preservative, 0.5-1% of a thickener and the balance of deionized water, wherein the surface active agent is composed of a nonionic surface active agent and a soap-based surface active agent, and the static surface tension of the surface active agent is 25-30 mN / m. According to the skin cleanser, the decontamination particles with good adhesive power are added and combined with the silicon powder, the static surface tension is controlled, the attached silicon powder can be rapidly and effectively removed, the skin cleanser is mild and free of irritation, and the cleaning time and frequency are greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of daily chemical industry, and in particular to a skin cleanser for cleaning attached silicon powder and a preparation method thereof. Background Art

[0002] Silicon powder is usually a tiny particle produced during the production of crystalline silicon. These particles have a small size and a high surface area, so they are easily suspended in the air. At the same time, the surface of silicon powder particles may be charged or have other adsorption properties, making them easy to adhere to the surface of objects or human skin with strong adhesion. Splashing silicon powder will be generated during the production process of silicon blocks or silicon ingots, silicon particle screening and grinding, silicon slag and silicon mud waste treatment, etc. The silicon powder suspended in the air greatly increases the possibility of direct contact between silicon powder and human skin, especially the skin of hands. The particles of silicon powder are usually very small, with a diameter of several microns to tens of microns. After contacting human skin, silicon powder can easily penetrate into the texture of the skin (about 100μm in diameter) and pores (20-50μm in diameter) or embed between the dead skin cells on the surface of the skin, and combine with the oil on the surface of the skin to form dirt that is difficult to clean, greatly increasing the difficulty of cleaning silicon powder.

[0003] At present, most of the existing hand sanitizer products are designed for general dirt and grease. They are mainly based on surfactants. Although they perform well in removing grease in daily cleaning, they are not satisfactory in removing fine particles such as silicon powder. This requires workers to rinse repeatedly when cleaning silicon powder from their hands, which is time-consuming and labor-intensive, reduces work efficiency, and may even cause dryness and damage to the skin or residual silicon powder affecting product quality. In addition, existing hand sanitizers often leave residues after use. These residues may not only cause additional irritation to the skin, but may also react chemically with silicon powder, increasing the difficulty of cleaning.

[0004] In view of this, it is very necessary to develop a skin cleanser that can quickly and effectively remove attached silica powder and is mild and non-irritating. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a skin cleanser for cleaning attached silicon powder. The skin cleanser can quickly and effectively remove attached silicon powder by adding decontamination particles with good adhesion and combining them with silicon powder. It is gentle and non-irritating, has good moisturizing effect, and greatly reduces the cleaning time and frequency.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0007] A skin cleanser for cleaning attached silicon powder, comprising the following components in percentage by mass: 5-10% surfactant, 0.1-0.35% micron-sized decontamination particles, 0.5-4% moisturizer, 1-4% aloe extract, 0.5-1% tea tree oil, 0.5-1% fragrance, 0.1-0.5% pH regulator, 0.5-0.8% preservative, 0.5-1% thickener, and the balance deionized water;

[0008] The surfactant is composed of a nonionic surfactant and a soap-based surfactant, and the static surface tension of the surfactant is 25 to 30 mN / m.

[0009] As a preferred embodiment of the present invention, the usage amount of the nonionic surfactant is at least 2%, and the usage amount of the soap-based surfactant is 2%.

[0010] As a preferred embodiment of the present invention, the nonionic surfactant is at least one of a polyether surfactant, lauryl sulfate (SLS), and cocamidopropyl betaine; the soap-based surfactant is at least one of potassium stearate, sodium laurate, sodium myristate, sodium palmitate, and sodium stearate. Further preferably, the surfactant is composed of 3-7% of polyoxyethylene sorbitan monooleate (CAS: 9005-65-6, a polyether surfactant) and 4-6% of potassium stearate.

[0011] As a preferred embodiment of the present invention, the particle size of the micron-sized decontamination particles is 10-20 μm. The micron-sized decontamination particles with a diameter of 10-20 μm can enter between the pores and effectively remove the silicon powder embedded between the pores. Excessive addition or too large particle size of micron-sized decontamination particles are prone to sedimentation, resulting in uneven products.

[0012] As a preferred embodiment of the present invention, the micron-sized decontamination particles are at least one of bentonite, dolomite, silicon dioxide particles, and calcium carbonate particles.

[0013] As a preferred embodiment of the present invention, the moisturizing agent is at least one of glycerol, butylene glycol, trehalose, hyaluronic acid, and lecithin. Further preferably, the moisturizing agent is composed of 1-3% glycerol and 0.5-1% hyaluronic acid, wherein glycerol can effectively lock in moisture and keep the skin moisturized, and hyaluronic acid provides deep moisturizing and enhances the skin's ability to retain moisture.

[0014] As a preferred embodiment of the present invention, the fragrance is at least one of linalool, β-ionone, dihydro-β-ionone, benzyl acetate, and β-phenylethanol; the fragrance can provide a pleasant aroma, which is conducive to enhancing the user experience. The pH regulator is at least one of citric acid, tartaric acid, and salicylic acid to ensure that the product is mild and non-irritating. The preservative is at least one of phenoxyethanol, potassium sorbate, and parachloro-meta-xylenol to avoid colony contamination to ensure the stability and safety of the product during use. The thickener is at least one of xanthan gum, carbomer, and hydroxyethyl cellulose, which is used to increase the viscosity of the skin cleanser to make it easier to apply and use.

[0015] As a preferred embodiment of the present invention, the pH of the skin cleanser is 5.5 to 6.5 and the viscosity is 400 to 800 mP.

[0016] The present invention also provides a method for preparing the skin cleanser for cleaning attached silicon powder as described above, which comprises the following steps:

[0017] S1. Heat deionized water, slowly add surfactant, and stir evenly until completely dissolved; add micron-sized decontamination particles, moisturizer, aloe extract, tea tree oil, fragrance, and preservative in sequence while stirring, and stir evenly;

[0018] S2. Add a pH adjuster to adjust the pH of the system to 5.5-6.5 while stirring; add a thickener to the system and stir evenly, and monitor the pH change;

[0019] S3. After cooling to room temperature, filling and packaging are performed.

[0020] In the above preparation method, the heating temperature of the deionized water in step S1 is 30-50°C and the stirring time is 60-90 min; the stirring time of step S2 is 30-60 min, and the total stirring time of steps S1 and S2 is 120-150 min.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The skin cleanser of the present invention is added with micron-level decontamination particles with good adhesion, and the surfactant is composed of a soap-based surfactant and a nonionic surfactant for strong decontamination. The soap-based surfactant can effectively remove oil residues on the skin surface. At the same time, by controlling the static surface tension of the surfactant, the low surface tension has strong permeability, and can carry the micron-level decontamination particles into the skin texture, effectively remove the dirt and dead skin cells on the skin surface under the physical friction of rubbing, so that the silicon powder is effectively peeled off and dispersed into the solution by the nonionic surfactant, thereby significantly improving the removal ability of the attached silicon powder and reducing the user's cleaning time and number of times. Further, the moisturizer can make the skin surface more hydrophilic, and the silicon powder dispersed in the solution can be rinsed clean under the action of water flow. In addition, the present invention selects mild, low-irritation, biodegradable ingredients, which can ensure the decontamination effect while ensuring that it will not cause damage to the skin under frequent use, has good moisturizing effect, can maintain skin moisture, and is environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a cleaning effect diagram of Comparative Example 4 of the present invention;

[0024] Figure 2 This is the cleaning effect diagram of comparative example 5 of the present invention

[0025] Figure 3 This is a comparison chart of the cleaning of attached silicon powder by the skin cleanser of the present invention under different static surface tensions. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with specific implementation modes.

[0027] A skin cleanser for cleaning attached silicon powder comprises the following components in percentage by mass: 5-10% of surfactant, 0.1-0.35% of micron-sized decontamination particles, 0.5-4% of moisturizer, 1-4% of aloe extract, 0.5-1% of tea tree oil, 0.5-1% of fragrance, 0.1-0.5% of pH regulator, 0.5-0.8% of preservative, 0.5-1% of thickener, and the balance of deionized water.

[0028] The surfactant is composed of a nonionic surfactant and a soap-based surfactant. The soap-based surfactant can effectively remove residual oil on the skin surface, and the nonionic surfactant can enhance the dispersibility of silicon powder in the solution. The static surface tension of the surfactant is 25 to 30 mN / m. Too high a surface tension will lead to poor decontamination ability. The dosage of the nonionic surfactant is at least 2%, and the dosage of the soap-based surfactant is 2%.

[0029] In the above formula, the nonionic surfactant is at least one of a polyether surfactant, lauryl sulfate (SLS), and cocamidopropyl betaine; the soap-based surfactant is at least one of potassium stearate, sodium laurate, sodium myristate, sodium palmitate, and sodium stearate. Preferably, the surfactant is composed of 3-7% of polyoxyethylene sorbitan monooleate (CAS: 9005-65-6, a polyether surfactant) and 4-6% of potassium stearate.

[0030] Furthermore, the particle size of the micron-sized decontamination particles is 10 to 20 μm. The micron-sized decontamination particles within this particle size range can enter between the pores and effectively remove the silicon powder embedded between the pores; excessive addition or oversized micron-sized decontamination particles are prone to sedimentation, resulting in uneven products. Specifically, the micron-sized decontamination particles are at least one of bentonite, dolomite, silicon dioxide particles, and calcium carbonate particles.

[0031] Furthermore, the moisturizer is at least one of glycerin, butylene glycol, trehalose, hyaluronic acid, and lecithin, and the moisturizer can increase the hydrophilicity of the skin surface, making the peeled silicon powder easier to be washed away by water. Preferably, the moisturizer is composed of 1-3% glycerin and 0.5-1% hyaluronic acid, wherein glycerin can effectively lock in moisture and keep the skin moisturized, and hyaluronic acid provides deep moisturizing and enhances the skin's ability to retain moisture.

[0032] In the above formula, aloe vera extract has a soothing and repairing effect, which can effectively relieve skin discomfort that may occur after cleaning. Tea tree oil has natural antibacterial properties and can enhance the cleaning effect of skin cleansers. The fragrance is at least one of linalool, β-ionone, dihydro-β-ionone, benzyl acetate, and β-phenylethanol; the fragrance can provide a pleasant aroma, which is conducive to enhancing user experience. The pH adjuster is at least one of citric acid, tartaric acid, and salicylic acid to ensure that the product is mild and non-irritating. The preservative is at least one of phenoxyethanol, potassium sorbate, and parachloro-meta-xylenol to avoid colony contamination during transportation or use that affects the cleaning effect, so as to ensure the stability and safety of the product during use. The thickener is at least one of xanthan gum, carbomer, and hydroxyethyl cellulose, which is used to increase the viscosity of the skin cleanser to make it easier to apply and use.

[0033] Furthermore, the pH of the skin cleanser is 5.5 to 6.5, ensuring that the product is mild and non-irritating. The viscosity of the skin cleanser is 400 to 800 mP. If the viscosity is lower than this range, the skin cleanser will be in a flowing state and cannot stay on the cleansing area for a long time, which is easy to cause waste; and if the viscosity is higher than this range, it is easy to cause clogging in the pressure head container.

[0034] The preparation method of the skin cleanser for cleaning attached silicon powder as described above comprises the following steps:

[0035] S1. Heat deionized water to 30-50°C, slowly add surfactant, and stir evenly until completely dissolved; add micron-sized decontamination particles, moisturizer, aloe extract, tea tree oil, fragrance, and preservative in sequence under stirring, and stir evenly; wherein the stirring time is 60-90 minutes;

[0036] S2. Add a pH adjuster to adjust the pH of the system to 5.5-6.5 while stirring; add a thickener to the system and stir evenly, and monitor the pH change; the stirring time is 30-60 minutes.

[0037] S3. After cooling to room temperature, filling and packaging are performed.

[0038] In the above method, deionized water must be added first in step S1 to prevent the viscous components from sticking to the wall. The total stirring time of steps S1 and S2 is 120 to 150 minutes. The order of adding the pH adjuster and the thickener in step S3 cannot be changed, because the addition of the pH adjuster will change the viscosity to a certain extent, while the addition of the thickener has no effect on the pH.

[0039] The storage and use of the skin cleanser prepared according to the above method are as follows: store the product in a cool and dry place, away from direct sunlight. When using, take an appropriate amount of hand sanitizer in the palm of your hand, rub to form foam, wash your hands thoroughly, and finally rinse with clean water.

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the following embodiments do not limit the protection scope of the present invention.

[0041] Unless otherwise specified, the reagents or devices used in the following examples can be obtained from conventional commercial sources or by existing known methods. In the following examples, surface tension can be measured using a commercially available fully automatic surface tension tester, model: JYW-200A Jinzhenghe digital surface tension dynamometer; viscosity can be measured using a commercially available rotational viscometer, model: NDJ-1 Brookfield rotational viscometer.

[0042] Embodiment 1:

[0043] A skin cleanser for cleaning attached silicon powder, comprising the following components in parts by mass:

[0044] 4 parts of polyoxyethylene sorbitan monooleate, 5 parts of sodium stearate, 0.1 parts of micron-sized silicon dioxide particles, 1 part of glycerin, 1 part of hyaluronic acid, 1 part of aloe extract, 1 part of tea tree oil, 0.5 parts of linalool, 0.5 parts of β-ionone, 0.2 parts of citric acid, 0.5 parts of potassium sorbate, 0.5 parts of xanthan gum, and 84.7 parts of deionized water.

[0045] The preparation method of the above-mentioned skin cleanser comprises the following steps:

[0046] S1. Place deionized water in a stirring bucket and heat it to 40°C. Slowly add polyoxyethylene sorbitan monooleate and potassium stearate while stirring, and stir evenly until completely dissolved; add micron-sized silica particles, glycerin, hyaluronic acid, aloe extract, tea tree oil, linalool, β-ionone, and potassium sorbate in sequence while stirring, and stir evenly; wherein, the stirring time is 80 minutes;

[0047] S2. Slowly add citric acid while stirring, monitor the pH change and adjust the pH of the system to 5.5-6.5. Continue stirring for 20 minutes, then slowly add xanthan gum to the system and stir evenly, monitor the pH change, and stir again for 20 minutes.

[0048] S3. After the system is cooled to room temperature, filling and packaging are performed.

[0049] Embodiment 2:

[0050] A skin cleanser for cleaning attached silicon powder, comprising the following components in parts by mass:

[0051] 2 parts of lauryl sulfate, 2 parts of sodium laurate, 1 part of sodium myristate, 0.35 parts of micron-sized bentonite particles, 1 part of butylene glycol, 1 part of trehalose, 4 parts of aloe extract, 0.5 parts of tea tree oil, 1 part of dihydro-β-ionone, 0.5 parts of benzyl acetate, 0.5 parts of salicylic acid, 0.5 parts of phenoxyethanol, 0.75 parts of hydroxyethyl cellulose, and 84.9 parts of deionized water.

[0052] The preparation method of the above-mentioned skin cleanser comprises the following steps:

[0053] S1. Place deionized water in a stirring barrel and heat it to 30° C. Slowly add lauryl sulfate, sodium laurate and sodium myristate while stirring, and stir evenly until they are completely dissolved; add micron-sized bentonite particles, butanediol, trehalose, aloe extract, tea tree oil, dihydro-β-ionone, benzyl acetate and phenoxyethanol in sequence while stirring, and stir evenly; wherein the stirring time is 90 min;

[0054] S2. Slowly add salicylic acid while stirring, monitor the pH change and adjust the pH of the system to 5.5-6.5. Continue stirring for 30 minutes, then slowly add hydroxyethyl cellulose to the system and stir evenly, monitor the pH change, and stir again for 30 minutes.

[0055] S3. After the system is cooled to room temperature, filling and packaging are performed.

[0056] Embodiment 3:

[0057] A skin cleanser for cleaning attached silicon powder, comprising the following components in parts by mass:

[0058] 4 parts of cocamidopropyl betaine, 3 parts of sodium palmitate, 3 parts of sodium stearate, 0.1 parts of calcium carbonate particles with a particle size of 10-20 microns, 0.1 parts of dolomite with a particle size of 10-20 microns, 1 part of butylene glycol, 2 parts of lecithin, 1 part of aloe extract, 0.8 parts of tea tree oil, 1 part of β-phenylethanol, 0.5 parts of benzyl acetate, 0.5 parts of tartaric acid, 0.8 parts of para-chloro-meta-xylenol, 1 part of carbomer, and 81.2 parts of deionized water.

[0059] The preparation method of the above-mentioned skin cleanser comprises the following steps:

[0060] S1. Place deionized water in a stirring barrel and heat it to 50° C., slowly add cocamidopropyl betaine, sodium palmitate and sodium stearate while stirring, and stir evenly until completely dissolved; add micron-sized calcium carbonate particles, dolomite particles, butylene glycol, lecithin, aloe extract, tea tree oil, β-phenylethanol, benzyl acetate and para-chloro-metaxylenol in sequence while stirring, and stir evenly; wherein the stirring time is 90 min;

[0061] S2. Slowly add tartaric acid while stirring, monitor the pH change and adjust the pH of the system to 5.5-6.5. Continue stirring for 30 minutes, then slowly add carbomer to the system and stir evenly, monitor the pH change, and stir again for 30 minutes.

[0062] S3. After the system is cooled to room temperature, filling and packaging are performed.

[0063] Comparative Example 1:

[0064] This comparative example is the commercially available Blue Moon hand sanitizer, model: Aloe antibacterial hand sanitizer bottle 500g (with a pump).

[0065] Comparative Example 2:

[0066] The difference between this comparative example and Example 1 is that no surfactant is added, and the other aspects are exactly the same as Example 1.

[0067] Comparative Example 3:

[0068] The difference between this comparative example and Example 1 is that no micron-sized decontamination particles are added, and the other aspects are exactly the same as Example 1.

[0069] Comparative Example 4:

[0070] The difference between this comparative example and Example 1 is that no moisturizer is added, and the other aspects are exactly the same as Example 1.

[0071] Comparative Example 5:

[0072] The difference between this comparative example and Example 1 is that no pH adjuster is added, and the other aspects are exactly the same as Example 1.

[0073] Comparative Example 6:

[0074] The difference between this comparative example and Example 1 is that only nonionic surfactant, 9 parts of polyoxyethylene sorbitan monooleate, is used as the surfactant, and the rest is exactly the same as Example 1.

[0075] Comparative Example 7:

[0076] The difference between this comparative example and Example 1 is that only a soap-based surfactant, 9 parts of sodium stearate, is used as the surfactant, and the rest is exactly the same as Example 1.

[0077] 1. Performance test of cleaning effect of attached silicon powder

[0078] In order to verify the removal effect of the skin cleaning products prepared in Examples 1 to 3 and Comparative Examples 1 to 7 of the present invention on the attached silicon powder, the following test was conducted. The specific cleaning effect measurement method is as follows:

[0079] 1. Silicon powder cleaning rate

[0080] Take 10g of the mortar liquid after cutting (silicon powder solid content is 10-15%, and no stratification will occur after standing for at least 30 minutes), apply it evenly on the arm, and air dry for 4-6 hours. Take a photo of the parallel smear plane as the first comparison picture, and use 1g of hand sanitizer to cover the silicon powder area. After 2 minutes, clean it for 20 seconds at a tap flow of 0.2m^3 / h, and use two fingers to rub along the arm during this period. After cleaning, take a photo of the parallel smear plane as the second comparison picture. Use image processing software to divide the two pictures into as small blocks as possible in the same way. If the silicon powder occupies at least one-half of the area of ​​the block, record the block as a dirty block. The difference between the ratio of the sum of the number of dirty blocks in the two pictures and the number 100% is the silicon powder cleaning rate. The higher the silicon powder cleaning rate, the better the cleaning effect.

[0081] 2. Dispersion rate of silicon powder:

[0082] Filter the original solution of skin cleanser, take 10g of silicon powder, add 100g of filtrate, use a disperser to disperse at 1200rpm for 5min, let it stand in a 100ml measuring cylinder for 20min, use a dropper to discard the supernatant, try to prevent the solution from turbulence, filter until about 20ml of the solution remains, weigh the remaining filter residue, record the difference between the ratio of the filter residue mass to the original silicon powder mass and the number 100%, which is the silicon powder dispersion rate. The greater the silicon powder dispersion rate, the better the cleaning effect. The disperser can be a commercially available hydraulic lifting high-speed disperser, model: ZHD-22.

[0083] 3. After cleaning and drying, observe whether the skin has redness, swelling or peeling. If not, it means that the hand sanitizer is mild and skin-friendly.

[0084] The results are shown in Table 1.

[0085] Table 1 Test results of cleaning effect of Examples 1 to 3 and Comparative Examples 1 to 7 on attached silicon powder

[0086]

[0087] From the data in Table 1, it can be seen that by comparing Example 1 with Comparative Examples 2 and 3 alone, it can be seen that the addition of surfactant and decontamination particles in Example 1 has a better cleaning effect. Figure 2 and Figure 3 It can be seen that a cleanser without a pH regulator and a moisturizer is prone to damage the skin. From Example 1 and Comparative Examples 6 and 7, it can be seen that Example 1 can make the surfactants work together by compounding them and adjusting their dosage ratios, thereby achieving a better cleaning effect.

[0088] 2. Determination of surface tension range

[0089] The surface energy γ is defined as the energy required to increase the surface area of ​​a liquid per unit area:

[0090]

[0091] When the energy ΔG is fixed, the lower the surface energy γ, the higher the increased liquid surface area ΔA. During the cleaning process, the higher the increased liquid surface area ΔA, the better the permeability.

[0092] According to Young's equation:

[0093] γ SG -γ SL =σcosθ.

[0094] There are a large number of polar groups on the skin surface, which makes the skin very hydrophilic. The contact angle θ is close to 0, that is, cosθ is close to 1, which can be regarded as a constant. The surface energy between the skin and the air is γ SG It can be regarded as a fixed value.

[0095] Transform Young's equation:

[0096]

[0097] in:

[0098] ΔA is the increased liquid surface area and is used to express liquid permeability.

[0099] ΔG is the external energy, which is kept fixed.

[0100] θ is the contact angle between liquid and skin, which is very close to 0.

[0101] σ is the static surface tension of the liquid (adjustment amount).

[0102] γ SG : The surface energy between skin and air, usually a constant.

[0103] From formula (1), we can know that:

[0104] 1. The lower the surface tension σ, the better the permeability.

[0105] 2. As the surface tension decreases, the effect of the reduced unit surface tension on permeability becomes smaller, that is, the reduction in surface tension has a marginal diminishing effect on permeability.

[0106] In order to prove the influence of surface tension on the cleaning effect, the skin cleanser prepared in Example 1 was subjected to a surface tension screening test. The specific operation is as follows: taking the skin cleanser in Example 1 as the basic formula, the surface tension of the basic formula was adjusted to 60mN / m, 25mN / m, 40mN / m, 30mN / m, and 28mN / m, respectively, to prepare skin cleansers with different surface tensions; and then a cleaning test of attached silicon powder was carried out under the same conditions. The results are shown in FIG. Figure 3 .

[0107] Figure 3 From left to right and from top to bottom are the cleaning effect pictures of the skin cleansers before cleaning, 60mN / m, 25mN / m, 40mN / m, 30mN / m, and 28mN / m groups. Figure 3 It can be seen that compared with the surface tension groups of 60mN / m and 40mN / m, the skin cleansers of the 25mN / m, 30mN / m and 28mN / m groups have better removal effects on attached silica powder, proving that the present invention can effectively enhance the cleaning effect of attached silica powder by controlling the surface tension to 25-30mN / m.

[0108] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A skin cleanser for cleaning attached silicon powder, characterized in that: The invention comprises the following components in percentage by mass: 5-10% surfactant, 0.1-0.35% micron-sized decontamination particles, 0.5-4% moisturizer, 1-4% aloe extract, 0.5-1% tea tree oil, 0.5-1% fragrance, 0.1-0.5% pH regulator, 0.5-0.8% preservative, 0.5-1% thickener, and the balance deionized water; The surfactant is composed of a nonionic surfactant and a soap-based surfactant, and the static surface tension of the surfactant is 25 to 30 mN / m.

2. The skin cleanser for cleaning attached silicon powder according to claim 1, characterized in that: The nonionic surfactant is used in an amount of at least 2%, and the soap-based surfactant is used in an amount of 2%.

3. The skin cleanser for cleaning attached silicon powder according to claim 1 or 2, characterized in that: The nonionic surfactant is at least one of polyether surfactants, lauryl sulfate, and cocamidopropyl betaine; the soap-based surfactant is at least one of potassium stearate, sodium laurate, sodium myristic acid, sodium palmitate, and sodium stearate.

4. The skin cleanser for cleaning attached silicon powder according to claim 1 or 2, characterized in that: The particle size of the micron-sized decontamination particles is 10 to 20 μm.

5. The skin cleanser for cleaning attached silicon powder according to claim 4, characterized in that: The micron-sized decontamination particles are at least one of bentonite, dolomite, silicon dioxide particles, and calcium carbonate particles.

6. The skin cleanser for cleaning attached silicon powder according to claim 1 or 2, characterized in that: The moisturizing agent is at least one of glycerin, butylene glycol, trehalose, hyaluronic acid and lecithin.

7. The skin cleanser for cleaning attached silicon powder according to claim 1 or 2, characterized in that: The fragrance is at least one of linalool, β-ionone, dihydro-β-ionone, benzyl acetate, and β-phenylethanol; the pH adjuster is at least one of citric acid, tartaric acid, and salicylic acid; the preservative is at least one of phenoxyethanol, potassium sorbate, and para-chloro-meta-xylenol; and the thickener is at least one of xanthan gum, carbomer, and hydroxyethyl cellulose.

8. The skin cleanser for cleaning attached silicon powder according to claim 1 or 2, characterized in that: The skin cleanser has a pH of 5.5 to 6.5 and a viscosity of 400 to 800 mP.

9. A method for preparing a skin cleanser for cleaning attached silicon powder according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Heat deionized water, slowly add surfactant, and stir evenly until completely dissolved; add micron-sized decontamination particles, moisturizer, aloe extract, tea tree oil, fragrance, and preservative in sequence while stirring, and stir evenly; S2. Add a pH adjuster to adjust the pH of the system to 5.5-6.5 while stirring; add a thickener to the system and stir evenly, and monitor the pH change; S3. After cooling to room temperature, fill and package.

10. The method for preparing a skin cleanser for cleaning attached silicon powder according to claim 9, characterized in that: In the step S1, the heating temperature of the deionized water is 30-50° C., and the stirring time is 60-90 min; the stirring time of the step S2 is 30-60 min, and the total stirring time of the steps S1 and S2 is 120-150 min.

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