Tea bran powder shower gel with exfoliating and skin moistening functions and preparation method of tea bran powder shower gel

Abstract

The invention discloses tea bran powder shower gel with exfoliating and skin moistening functions and a preparation method of the tea bran powder shower gel. The tea bran powder shower gel is prepared from the following raw materials in parts: 30 parts of a tea bran extracting solution, 15 parts of a surfactant, 5 parts of a humectant, 3 parts of natural skin moistening oil, 2 parts of exfoliating particles, 5 parts of essential oil and 70 parts of pure water. The shower gel has the advantage of being good in comfort, and the problems that an existing shower gel is single in function in the using process, the skin of a user is difficult to maintain while the skin of the user is cleaned, the skin of the user is likely to be dry and uncomfortable, and the comfort in the using process is reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of bath products, in particular to a tea bran powder shower gel with the functions of exfoliating and moisturizing the skin and a preparation method thereof. Background Art

[0002] Tea bran powder shower gel is a type of shower gel, which is a personal care product used to clean the skin, usually in liquid form. It is mainly used to replace traditional soap for body cleaning and is widely popular because of its mild formula and ability to adapt to the needs of different skin types. The main function of shower gel is to remove impurities such as dirt, oil and sweat from the skin through the surfactant ingredients it contains, while also maintaining the moisture of the skin to avoid dryness caused by excessive cleaning. There are many types of shower gels, including but not limited to moisturizing, refreshing, exfoliating, and sensitive skin-specific types to meet the needs of different users. Some shower gels may also contain spices, plant extracts, vitamins and other ingredients to provide additional skin care effects, such as moisturizing, soothing or whitening.

[0003] The existing shower gel has a single function during use. It is difficult to maintain the user's skin while cleaning the user's skin, which easily leads to dryness and discomfort of the user's skin, reducing the comfort during use. Summary of the invention

[0004] The purpose of the present invention is to provide a tea bran powder shower gel with exfoliating and moisturizing functions and a preparation method thereof, which has the advantage of good comfort and solves the problem that the existing shower gel has a single function during use, is difficult to care for the user's skin while cleaning the user's skin, easily causes the user's skin to become dry and uncomfortable, and reduces the comfort during use.

[0005] To achieve the above object, the present invention provides the following technical solution: a tea bran powder shower gel with exfoliating and moisturizing effects, comprising the following raw materials:

[0006] 30 parts of tea bran extract, 15 parts of surfactant, 5 parts of moisturizer, 3 parts of natural moisturizing oil, 2 parts of exfoliating particles, 5 parts of essential oil and 70 parts of pure water.

[0007] A method for preparing a tea bran powder shower gel with exfoliating and moisturizing properties comprises the following steps:

[0008] S1, extracting tea bran liquid, preparing tea bran into tea bran powder, extracting a part of the tea bran powder, and keeping a part of the tea bran powder as exfoliating particles, then mixing the tea bran powder to be extracted with water, soaking the mixture of the tea bran powder and water, filtering once, concentrating and filtering twice, and finally obtaining a tea bran extract;

[0009] S2, mixing ingredients, putting tea bran extract, surfactant, moisturizer, natural moisturizing oil, exfoliating particles, essential oil and pure water into a mixing device in proportion;

[0010] S3, heating and stirring, the mixing device stirs the ingredients to make them evenly mixed. During the stirring process, the heating component inside the mixing device works to heat the materials at a constant temperature and stir them continuously to ensure that all ingredients are fully integrated to prepare a mixed liquid;

[0011] S4, cooling and adjustment, after the mixing is completed, the stirring is stopped, and the mixed liquid is pumped into the cooling equipment, and the cooling equipment performs liquid cooling on the mixed liquid;

[0012] S5, filling and packaging, the cooled mixed liquid is conveyed to the filtering equipment to filter out the solid impurities in the mixture, and then conveyed to the sterilization equipment for sterilization. The sterilized mixed liquid enters the filling equipment, and the filling equipment fills the mixed liquid into a sterile container to prepare a transportable tea bran powder shower gel.

[0013] As a preferred method for preparing a tea bran powder shower gel with exfoliating and moisturizing effects of the present invention, when preparing tea bran into tea bran powder in S1, first use a crusher to crush the whole piece of tea bran into 1-3 cm tea bran blocks for subsequent drying and crushing, then use hot air drying equipment to dry the tea bran blocks, the drying temperature is 50-60°C, the moisture content of the dried tea bran blocks is 5%-10%, use a grinder to crush the dried tea bran blocks to obtain tea bran particles, pour the tea bran particles into a vibrating screen for screening, the vibrating screen is provided with a sieve of 80-100 mesh, the sieve selects the tea bran particle fine powder, and the unscreened tea bran particles are returned to the grinder and crushed again until all are powdered.

[0014] As a preferred method for preparing a tea bran powder shower gel with exfoliating and moisturizing effects of the present invention, when mixing the tea bran powder with water in S1, first pour water into a stirring device, and then add the tea bran powder into the water in small amounts and multiple times. During the process of adding the tea bran powder, an electric stirrer inside the stirring device stirs the tea bran powder and water to form a mixed liquid. The stirring time is 5-15 minutes and the stirring speed is 800-1200 rpm to fully break up the tea bran powder. The mixed liquid is poured into an 80-100 mesh filter to filter out coarse particles remaining in the mixed liquid to ensure that the tea bran powder particles in the mixed liquid are evenly distributed. After the stirring is completed, a natural thickener is added to the mixed liquid. The ratio of the natural thickener to the mixed liquid is 0.1-0.5:100, and the natural thickener is xanthan gum, guar gum or starch, thereby delaying the precipitation of the tea bran powder.

[0015] As a preferred method for preparing a tea bran powder shower gel with exfoliating and moisturizing properties of the present invention, when the mixture of tea bran powder and water in S1 is soaked, the mixture is placed in a heating extraction device for heating and soaking, and the heating temperature is 50-60° C. to accelerate the dissolution of saponin in the tea bran. During the extraction process, 0.1-1% citric acid is added to the mixture, and the pH value is adjusted to 4-5 to enhance the stability of the saponin. During the soaking process, the mixture is intermittently stirred to break the liquid-solid interface layer and promote the continuous dissolution of the components. 0.1-1% citric acid is added to the mixture to accelerate the dissolution of the saponin. 0.3% cellulase, after adding cellulase, the heating temperature is adjusted to 40°C, and after soaking for 1-2 hours, the cellulase destroys the cell wall structure of tea bran and releases more components. An ultrasonic cleaning device is installed on the heating extraction equipment, and the saponin dissolution rate is greatly improved by the action of ultrasonic waves on the mixture. After the soaking is completed, the mixture is allowed to stand for 30-60 minutes to allow the tea bran powder particles in the mixture to settle to the bottom of the heating extraction equipment. The precipitated tea bran powder particles are discharged through the discharge valve at the bottom of the heating extraction equipment. After the discharge is completed, the tea bran extract is taken out for subsequent treatment.

[0016] As a preferred method for preparing a tea bran powder shower gel with exfoliating and moisturizing effects of the present invention, when the mixture of tea bran powder and water in S1 is filtered once, a bag filter is used for filtration, and the bag filter includes a filter body, the filter body is connected to a liquid inlet and a liquid outlet, and a detachable filter bag is installed inside, the filter bag is a 100-120 mesh polyester fiber filter bag, and an automatic backwashing system is installed on the filter body, and the automatic backwashing system automatically cleans the filter bag according to the pressure difference between the inlet and outlet water.

[0017] As a preferred method for preparing a tea bran powder shower gel with exfoliating and moisturizing effects of the present invention, when the mixture of tea bran powder and water in S1 is concentrated, a vacuum evaporation device is used to concentrate it, the vacuum evaporation device comprises a feeding system, a concentrating device and a condensation recovery system, the feeding system uses a liquid storage tank to store the mixture, and uses a delivery pump to transport the mixture to the concentrating device, the concentrating device comprises an evaporator, and a vacuum system is installed on the evaporator. The vacuum system extracts air inside the evaporator to make the inside of the evaporator enter a vacuum environment to reduce the boiling point of the mixture, and steam is used to indirectly heat the mixture inside the evaporator, and the heating temperature is controlled to be 50-60°C, and finally a concentrated solution is obtained, and the evaporated water enters the condensation recovery system, and the condensed water is recycled for secondary use to reduce the waste of resources.

[0018] As a preferred method for preparing a tea bran powder shower gel with exfoliating and moisturizing effects of the present invention, when the mixture of tea bran powder and water in S1 is subjected to secondary filtration, it is filtered using a multi-stage filtration device, and the multi-stage filtration device includes a pre-filtration unit, a main filtration unit and a post-processing unit. The pre-filtration unit extracts the concentrated liquid through a pressure pump, and the extracted concentrated liquid passes through a first filter element, and a 120-200 mesh filter material is arranged inside the first filter element to filter particulate matter in the concentrated liquid. The concentrated liquid after the initial filtration enters the main filtration unit, and a 200-2500 mesh filter material is arranged inside the main filtration unit to filter the concentrated liquid again. An adsorption column is arranged inside the post-processing unit, and the adsorption column is an activated carbon material to adsorb the odor in the concentrated liquid to obtain a final tea bran extract.

[0019] As a preferred method for preparing a tea bran powder shower gel with exfoliating and moisturizing effects of the present invention, after the tea bran extract is filtered twice, a nonionic emulsifier is added to the tea bran extract for emulsification, the nonionic emulsifier is PEG-40 hydrogenated castor oil, and 0.5-2g of the nonionic emulsifier is added to every 100g of the tea bran extract. The tea bran extract and the nonionic emulsifier are premixed first, and then heated to 60-70°C for 5-10min. During the heating process, a homogenizer is used for continuous stirring. After the stirring is completed, the mixture is cooled to 40°C, and then stirred for 2-3min to prevent the emulsifier from re-aggregating. After the emulsification is completed, the viscosity is tested, and 0.1-0.5% of xanthan gum or carbomer is added for thickening according to the test results.

[0020] As a preferred method for preparing a tea bran powder shower gel with exfoliating and moisturizing functions of the present invention, after the tea bran extract is emulsified, vitamins and minerals are added to the emulsified tea bran extract. The vitamins and minerals are in powder form and are directly added to the emulsified tea bran extract by stirring. The vitamins are one or more of vitamin A, vitamin D, vitamin E, vitamin C and B vitamins, and the minerals are one or more of calcium, magnesium, zinc, iron and selenium.

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

[0022] 1. The present invention provides tea bran ingredients in the shower gel, so that the user's skin can be cleaned and cared for at the same time, thereby avoiding dryness and discomfort of the user's skin and improving comfort during use. The tea bran powder contains natural saponin, which can gently clean the skin, remove dirt and aged cuticles, and make the skin smoother. The oil component in the tea bran extract helps to lock in moisture, prevent dryness of the skin, and keep it soft and delicate. The ingredients in the tea bran extract can promote blood circulation in the feet, help nutrient delivery, and improve skin condition. The tea bran extract has certain anti-inflammatory and antibacterial effects, which can reduce skin problems and maintain health. The particles of the tea bran powder can gently remove dead skin cells, promote the generation of new cells, and make the skin smoother. The tea bran powder contains vitamins and minerals, which can nourish the skin and enhance luster and elasticity.

[0023] 2. The present invention uses tea bran extract, and the shower gel can effectively utilize natural ingredients in tea bran such as saponin, etc. These ingredients have good cleaning and skin care effects. Tea bran powder, as exfoliating particles, can gently remove the aged stratum corneum on the skin surface and promote skin metabolism. The addition of vitamins and minerals can enhance the nutritional value of the product, provide additional antioxidant protection, and help improve skin health. Ultrasonic wave-assisted extraction technology and enzymatic hydrolysis are used in the extraction process to significantly improve the dissolution rate of effective ingredients in tea bran, thereby ensuring the active ingredient content of the final product. A multi-stage filtration system is used to ensure the purity of the tea bran extract, reduce the presence of impurities, and improve the stability and sensory quality of the product. A non-ionic emulsifier is used for emulsification, and the viscosity is adjusted as needed, so that the product texture is more delicate and uniform, easy to apply and not easy to stratify. The vacuum evaporation concentration process not only reduces energy consumption, but also realizes the effective recycling and reuse of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the preparation process of the present invention. DETAILED DESCRIPTION

[0025] A tea bran powder shower gel with exfoliating and moisturizing effects, comprising the following raw materials:

[0026] 30 parts of tea bran extract, 15 parts of surfactant, 5 parts of moisturizer, 3 parts of natural moisturizing oil, 2 parts of exfoliating particles, 5 parts of essential oil and 70 parts of pure water

[0027] Furthermore, the surfactant is an amino acid surfactant, the moisturizer is glycerin, the natural moisturizing oil is sweet almond oil, the exfoliating particles are tea bran powder and oatmeal powder, and the essential oil is rose essential oil extract.

[0028] By adding tea bran ingredients to the shower gel, the user's skin can be cleaned and cared for at the same time, thus avoiding dryness and discomfort of the user's skin and improving comfort during use. Tea bran powder contains natural saponins, which can gently cleanse the skin, remove dirt and aging cuticles, and make the skin smoother. The oil components in the tea bran extract help lock in moisture, prevent dry skin, and keep it soft and delicate. The ingredients in the tea bran extract can promote blood circulation in the feet, help nutrient delivery, and improve skin condition. The tea bran extract has certain anti-inflammatory and antibacterial effects, which can reduce skin problems and maintain health. The particles of the tea bran powder can gently remove dead skin cells, promote the generation of new cells, and make the skin smoother. The tea bran powder contains vitamins and minerals, which can nourish the skin and enhance radiance and elasticity.

[0029] Amino acid surfactants and tea bran saponins work together to increase foam richness and reduce friction damage. Sweet almond oil contains oleic acid and linoleic acid, which replenish skin lipids and reduce transepidermal water loss by 20-30%. Glycerin forms a hygroscopic film to improve moisturizing rate. Tea bran powder contains cellulose particles, which can mechanically remove dead skin and avoid excessive friction. Oatmeal powder contains β-glucan and natural enzymes, which can soften cuticles and relieve redness and swelling. Rose essential oil contains geraniol and geraniol, which can regulate the user's mood and has antibacterial properties.

[0030] This tea bran powder shower gel balances gentle cleansing and oil control, forming a low-irritation cleansing system through amino acid surfactants + tea bran saponins. The sebum clearance rate is ≥90%, and the sebum secretion rebound rate 24 hours after washing is less than 10%. The dual-effect exfoliating particles (physical + enzymatic) shorten the cuticle renewal cycle from 28 days to 21 days, and there is no significant increase in transepidermal water loss rate, proving that the barrier is not damaged.

[0031] Glycerin + sweet almond oil form a three-dimensional moisturizing network of "water absorption - moisture locking - fat replenishment". The skin's moisture content is still >45% 2 hours after washing.

[0032] Oat β-glucan inhibits the release of IL-6 inflammatory factors, and rose essential oil reduces TRPV1 neurosensitive signals.

[0033] The method of using tea bran powder shower gel is that the user first bathes the body with hot water, and then applies the tea bran powder shower gel to the body. During the application process, the tea bran powder shower gel foams for cleaning, and after cleaning, rinse off the foam.

[0034] When soaking your feet, add an appropriate amount of tea bran powder shower gel to warm water, soak your feet for 15-20 minutes, gently massage your feet, and finally rinse with clean water and dry them.

[0035] See also Figure 1 , a method for preparing a tea bran powder shower gel with exfoliating and moisturizing properties, comprising the following steps:

[0036] S1, extracting tea bran liquid, preparing tea bran into tea bran powder, extracting a part of the tea bran powder, and keeping a part of the tea bran powder as exfoliating particles, then mixing the tea bran powder to be extracted with water, soaking the mixture of the tea bran powder and water, filtering once, concentrating and filtering twice, and finally obtaining a tea bran extract;

[0037] S2, mixing ingredients, putting tea bran extract, surfactant, moisturizer, natural moisturizing oil, exfoliating particles, essential oil and pure water into a mixing device in proportion;

[0038] S3, heating and stirring, the mixing device stirs the ingredients to make them evenly mixed. During the stirring process, the heating component inside the mixing device works to heat the materials at a constant temperature and stir them continuously to ensure that all ingredients are fully integrated to prepare a mixed liquid;

[0039] S4, cooling and adjustment, after the mixing is completed, the stirring is stopped, and the mixed liquid is pumped into the cooling equipment, and the cooling equipment performs liquid cooling on the mixed liquid;

[0040] S5, filling and packaging, the cooled mixed liquid is conveyed to the filtering equipment to filter out the solid impurities in the mixture, and then conveyed to the sterilization equipment for sterilization. The sterilized mixed liquid enters the filling equipment, and the filling equipment fills the mixed liquid into a sterile container to prepare a transportable tea bran powder shower gel.

[0041] Furthermore, when preparing tea bran into tea bran powder in S1, first use a crusher to break the whole piece of tea bran into 1-3 cm tea bran blocks for subsequent drying and crushing, then use hot air drying equipment to dry the tea bran blocks, the drying temperature is 50-60°C, the moisture content of the dried tea bran blocks is 5%-10%, and a grinder is used to crush the dried tea bran blocks to obtain tea bran particles, which are poured into a vibrating screen for screening. A sieve with 80-100 mesh is provided inside the vibrating screen. The sieve selects fine powder of the tea bran particles, and the unscreened tea bran particles are returned to the grinder and crushed again until all are powdered.

[0042] Furthermore, when mixing the tea bran powder with water in S1, first pour the water into the stirring device, and then add the tea bran powder into the water in small amounts and multiple times. During the process of adding the tea bran powder, the electric stirrer inside the stirring device stirs the tea bran powder and water to form a mixed liquid. The stirring time is 5-15 minutes, and the stirring speed is 800-1200 rpm to fully break up the tea bran powder. The mixed liquid is poured into an 80-100 mesh filter to filter out the coarse particles remaining in the mixed liquid to ensure that the tea bran powder particles in the mixed liquid are evenly distributed. After the stirring is completed, a natural thickener is added to the mixed liquid. The ratio of the natural thickener to the mixed liquid is 0.1-0.5:100. The natural thickener is xanthan gum, guar gum or starch, thereby delaying the precipitation of the tea bran powder.

[0043] Furthermore, when the mixture of tea bran powder and water in S1 is soaked, the mixture is placed in a heating extraction device for heating and soaking, and the heating temperature is 50-60°C to accelerate the dissolution of saponin in the tea bran. During the extraction process, 0.1-1% citric acid is added to the mixture, and the pH value is adjusted to 4-5, thereby enhancing the stability of the saponin. During the soaking process, the mixture is intermittently stirred to break the liquid-solid interface layer and promote the continuous dissolution of the components. 0.1-0.3% cellulase is also added to the mixture. After adding the cellulase, the heating temperature is adjusted to 40°C. After soaking for 1-2 hours, the cellulase destroys the cell wall structure of the tea bran and releases more components. An ultrasonic cleaning device is installed on the heating extraction device to greatly improve the saponin dissolution rate by acting on the mixture with ultrasonic waves. After the soaking is completed, the mixture is allowed to stand for 30-60 minutes to allow the tea bran powder particles in the mixture to settle to the bottom of the heating extraction device. The precipitated tea bran powder particles are discharged through the discharge valve at the bottom of the heating extraction device. After the discharge is completed, the tea bran extract is taken out for subsequent treatment.

[0044] Furthermore, when the mixture of tea bran powder and water in S1 is filtered once, a bag filter is used for filtration. The bag filter includes a filter body, which is connected to a liquid inlet and a liquid outlet. A detachable filter bag is installed inside the filter body. The filter bag is a 100-120 mesh polyester fiber filter bag. An automatic backwashing system is installed on the filter body. The automatic backwashing system automatically cleans the filter bag according to the pressure difference between the inlet and outlet water.

[0045] Furthermore, when the mixture of tea bran powder and water in S1 is concentrated, a vacuum evaporation device is used to concentrate it. The vacuum evaporation device includes a feeding system, a concentrating device and a condensation recovery system. The feeding system uses a liquid storage tank to store the mixture, and uses a delivery pump to transport the mixture to the concentrating device. The concentrating device includes an evaporator. The evaporator is equipped with a vacuum system. The vacuum system extracts air from the inside of the evaporator to make the inside of the evaporator enter a vacuum environment, thereby reducing the boiling point of the mixture. Steam is used to indirectly heat the mixture inside the evaporator, and the heating temperature is controlled at 50-60°C. Finally, a concentrated solution is obtained, and the evaporated water enters the condensation recovery system. The condensed water is recycled for secondary use to reduce resource waste.

[0046] Furthermore, when the mixture of tea bran powder and water in S1 is filtered for the second time, a multi-stage filtering device is used for filtering. The multi-stage filtering device includes a pre-filtering unit, a main filtering unit and a post-processing unit. The pre-filtering unit extracts the concentrated liquid through a pressure pump. The extracted concentrated liquid passes through a first filter element. A 120-200 mesh filter material is provided inside the first filter element to filter the particulate matter in the concentrated liquid. The concentrated liquid after the initial filtration enters the main filtering unit. A 200-2500 mesh filter material is provided inside the main filtering unit to filter the concentrated liquid again. An adsorption column is provided inside the post-processing unit. The adsorption column is an activated carbon material to adsorb the odor in the concentrated liquid to obtain the final tea bran extract.

[0047] Furthermore, after the tea bran extract is filtered twice, a nonionic emulsifier is added to the tea bran extract for emulsification, the nonionic emulsifier is PEG-40 hydrogenated castor oil, and 0.5-2g of the nonionic emulsifier is added to every 100g of the tea bran extract. The tea bran extract and the nonionic emulsifier are premixed, and then heated to 60-70°C for 5-10min. During the heating process, a homogenizer is used for continuous stirring. After the stirring is completed, the mixture is cooled to 40°C, and then stirred for 2-3min to prevent the emulsifier from re-aggregating. After the emulsification is completed, the viscosity is tested, and 0.1-0.5% of xanthan gum or carbomer is added for thickening according to the test results.

[0048] Furthermore, after the tea bran extract is emulsified, vitamins and minerals are added into the emulsified tea bran extract. The vitamins and minerals are in powder form and are directly added into the emulsified tea bran extract by stirring. The vitamins are one or more of vitamin A, vitamin D, vitamin E, vitamin C and B vitamins, and the minerals are one or more of calcium, magnesium, zinc, iron and selenium.

[0049] By using tea bran extract, the shower gel can effectively utilize natural ingredients in tea bran such as saponin, which have good cleaning and skin care effects. Tea bran powder, as exfoliating particles, can gently remove the aged stratum corneum on the skin surface and promote skin metabolism. Adding vitamins and minerals can enhance the nutritional value of the product, provide additional antioxidant protection, and help improve skin health. The use of ultrasonic assisted extraction technology and enzymatic hydrolysis in the extraction process can significantly increase the dissolution rate of effective ingredients in tea bran, ensuring the active ingredient content of the final product. The use of a multi-stage filtration system ensures the purity of the tea bran extract, reduces the presence of impurities, and improves the stability and sensory quality of the product. Ionic emulsifier is used for emulsification, and the viscosity is adjusted as needed to make the product texture more delicate and uniform, easy to apply and not prone to stratification. The vacuum evaporation concentration process not only reduces energy consumption, but also realizes the effective recycling and reuse of water resources. The entire production process is reasonably designed, and the requirements of energy conservation and emission reduction are taken into account from raw material processing to finished product packaging. The tea bran powder shower gel finally prepared integrates multiple functions such as exfoliation, moisturizing, and moisturizing, meeting the diverse needs of consumers for high-efficiency personal care products. The addition of natural essential oils gives the product a pleasant fragrance and enhances the pleasure of use. At the same time, choosing suitable moisturizers and moisturizing oils can fully nourish the skin while cleansing it, avoiding the occurrence of dryness and tightness.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tea bran powder shower gel with exfoliating and moisturizing properties, characterized in that: Includes the following ingredients: 30 parts of tea bran extract, 15 parts of surfactant, 5 parts of moisturizer, 3 parts of natural moisturizing oil, 2 parts of exfoliating particles, 5 parts of essential oil and 70 parts of pure water.

2. A method for preparing a tea bran powder shower gel with exfoliating and moisturizing properties, which is applicable to the tea bran powder shower gel with exfoliating and moisturizing properties as claimed in claim 1, characterized in that: The following steps are involved: S1, extracting tea bran liquid, preparing tea bran into tea bran powder, extracting a part of the tea bran powder, and keeping a part of the tea bran powder as exfoliating particles, then mixing the tea bran powder to be extracted with water, soaking the mixture of the tea bran powder and water, filtering once, concentrating and filtering twice, and finally obtaining a tea bran extract; S2, mixing ingredients, putting tea bran extract, surfactant, moisturizer, natural moisturizing oil, exfoliating particles, essential oil and pure water into a mixing device in proportion; S3, heating and stirring, the mixing device stirs the ingredients to make them evenly mixed. During the stirring process, the heating component inside the mixing device works to heat the materials at a constant temperature and stir them continuously to ensure that all ingredients are fully integrated to prepare a mixed liquid; S4, cooling and adjustment, after the mixing is completed, the stirring is stopped, and the mixed liquid is pumped into the cooling equipment, and the cooling equipment performs liquid cooling on the mixed liquid; S5, filling and packaging, the cooled mixed liquid is conveyed to the filtering equipment to filter out the solid impurities in the mixture, and then conveyed to the sterilization equipment for sterilization. The sterilized mixed liquid enters the filling equipment, and the filling equipment fills the mixed liquid into a sterile container to prepare a transportable tea bran powder shower gel.

3. The method for preparing a tea bran powder shower gel with exfoliating and moisturizing properties according to claim 2, characterized in that: When preparing tea bran into tea bran powder in S1, firstly, a crusher is used to crush the whole piece of tea bran into tea bran blocks of 1-3 cm to facilitate subsequent drying and crushing, and then a hot air drying device is used to dry the tea bran blocks at a drying temperature of 50-60°C. The moisture content of the dried tea bran blocks is 5%-10%. A grinder is used to crush the dried tea bran blocks to obtain tea bran particles, and the tea bran particles are poured into a vibrating screen for screening. A sieve with 80-100 mesh is arranged inside the vibrating screen. The sieve selects fine powder of the tea bran particles, and the tea bran particles that have not been screened are returned to the grinder and crushed again until all of them are powdered.

4. The method for preparing the tea bran powder shower gel with exfoliating and moisturizing properties according to claim 2, characterized in that: When mixing the tea bran powder with water in S1, first pour water into a stirring device, then add the tea bran powder into the water in small amounts for multiple times. During the process of adding the tea bran powder, an electric stirrer inside the stirring device stirs the tea bran powder and water to form a mixed solution. The stirring time is 5-15 minutes, and the stirring speed is 800-1200 rpm to fully break up the tea bran powder. The mixed solution is poured into an 80-100 mesh filter to filter out coarse particles remaining in the mixed solution to ensure that the tea bran powder particles in the mixed solution are evenly distributed. After the stirring is completed, a natural thickener is added to the mixed solution. The ratio of the natural thickener to the mixed solution is 0.1-0.5:100, and the natural thickener is xanthan gum, guar gum or starch, thereby delaying the precipitation of the tea bran powder.

5. The method for preparing the tea bran powder shower gel with exfoliating and moisturizing properties according to claim 2, characterized in that: When the mixture of tea bran powder and water in S1 is soaked, the mixture is placed in a heating extraction device for heating and soaking, and the heating temperature is 50-60° C. to accelerate the dissolution of saponin in the tea bran. During the extraction process, 0.1-1% citric acid is added to the mixture, and the pH value is adjusted to 4-5, thereby enhancing the stability of saponin. During the soaking process, the mixture is intermittently stirred to break the liquid-solid interface layer and promote the continuous dissolution of the components. 0.1-0.3% cellulase is also added to the mixture. After the cellulase is added, the heating temperature is adjusted to 40° C. After soaking for 1-2 hours, the cellulase destroys the cell wall structure of the tea bran and releases more components. An ultrasonic cleaning device is installed on the heating extraction device to greatly improve the saponin dissolution rate by acting on the mixture with ultrasonic waves. After the soaking is completed, the mixture is allowed to stand for 30-60 minutes to allow the tea bran powder particles in the mixture to settle to the bottom of the heating extraction device. The precipitated tea bran powder particles are discharged through the discharge valve at the bottom of the heating extraction device. After the discharge is completed, the tea bran extract is taken out for subsequent treatment.

6. The method for preparing the tea bran powder shower gel with exfoliating and moisturizing effects according to claim 2, characterized in that: When the mixture of tea bran powder and water in S1 is filtered once, a bag filter is used for filtering. The bag filter includes a filter body, which is connected to a liquid inlet and a liquid outlet. A detachable filter bag is installed inside the filter body. The filter bag is a 100-120 mesh polyester fiber filter bag. An automatic backwashing system is installed on the filter body. The automatic backwashing system automatically cleans the filter bag according to the pressure difference between the inlet and outlet water.

7. The method for preparing the tea bran powder shower gel with exfoliating and moisturizing effects according to claim 2, characterized in that: When the mixture of tea bran powder and water in S1 is concentrated, it is concentrated by using a vacuum evaporation device, the vacuum evaporation device includes a feeding system, a concentrating device and a condensation recovery system, the feeding system uses a liquid storage tank to store the mixture, and uses a delivery pump to transport the mixture to the concentrating device, the concentrating device includes an evaporator, and the evaporator is equipped with a vacuum system, the vacuum system extracts the air inside the evaporator to make the inside enter a vacuum environment, reduce the boiling point of the mixture, use steam to indirectly heat the mixture inside the evaporator, and control the heating temperature, the heating temperature is 50-60°C, and finally a concentrated solution is obtained, the evaporated water enters the condensation recovery system, and the condensed water is recycled for secondary use to reduce the waste of resources.

8. The method for preparing the tea bran powder shower gel with exfoliating and moisturizing effects according to claim 2, characterized in that: When the mixture of tea bran powder and water in S1 is filtered for the second time, a multi-stage filtering device is used for filtering. The multi-stage filtering device includes a pre-filtering unit, a main filtering unit and a post-processing unit. The pre-filtering unit extracts the concentrated liquid through a pressure pump. The extracted concentrated liquid passes through a first filter element. A filter material with a mesh size of 120-200 is arranged inside the first filter element to filter particulate matter in the concentrated liquid. The concentrated liquid after the initial filtration enters the main filtering unit. A filter material with a mesh size of 200-2500 is arranged inside the main filtering unit to filter the concentrated liquid again. An adsorption column is arranged inside the post-processing unit. The adsorption column is an activated carbon material to adsorb the odor in the concentrated liquid to obtain a final tea bran extract.

9. The method for preparing the tea bran powder shower gel with exfoliating and moisturizing effects according to claim 8, characterized in that: After the tea bran extract is filtered twice, a nonionic emulsifier is added to the tea bran extract for emulsification. The nonionic emulsifier is PEG-40 hydrogenated castor oil, and 0.5-2g of the nonionic emulsifier is added to every 100g of the tea bran extract. The tea bran extract and the nonionic emulsifier are premixed, and then heated to 60-70°C for 5-10min. During the heating process, a homogenizer is used for continuous stirring. After the stirring is completed, the mixture is cooled to 40°C, and then stirred for 2-3min to prevent the emulsifier from reaggregating. After the emulsification is completed, the viscosity is tested, and 0.1-0.5% of xanthan gum or carbomer is added for thickening according to the test result.

10. The method for preparing the tea bran powder shower gel with exfoliating and moisturizing effects according to claim 9, characterized in that: After the tea bran extract is emulsified, vitamins and minerals are added into the emulsified tea bran extract. The vitamins and minerals are in powder form and are directly added into the emulsified tea bran extract by stirring. The vitamins are one or more of vitamin A, vitamin D, vitamin E, vitamin C and B vitamins, and the minerals are one or more of calcium, magnesium, zinc, iron and selenium.

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