Preparation process of skin-care whitening product containing ginseng and spina gleditsiae

Abstract

The invention relates to a preparation process of a skin-care whitening product for ginseng and spina gleditsiae, which is applied to the related field of skin-care products, an in-vitro working fluid unit is used for assisting vacuum defoaming operation, and in the defoaming process, an emulsion crude product in an emulsification tank is subjected to distribution position conversion between an upper emulsion crude product and a lower emulsion crude product in an external circulation manner, so that the skin-care whitening product is obtained. The emulsion crude product can be in a dynamic state under the condition that the emulsion crude product is not in direct contact, bubble elimination is accelerated, meanwhile, the problem that bubbles at the bottom are difficult to move upwards to be discharged due to the fact that the viscosity of the emulsion crude product is large can be effectively solved, and compared with the operation that mechanical stirring assists vacuum defoaming in the prior art, the operation efficiency is improved. No extra part in the emulsifying tank is in contact with the crude emulsion, all power operations are located outside the emulsifying tank and the outer circulating pipe, the defoaming effect can be effectively improved, meanwhile, the follow-up cleaning difficulty is relatively low, and the production efficiency of the whitening product is effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to a preparation process of a whitening product, particularly to a preparation process of a whitening product for ginseng and sea buckthorn skin care applied to the related field of skin care products. Background Art

[0002] Skin care products, "skin care" means to protect the skin; "skin" refers to the skin; "products" means products. Skin care products are products that protect the skin. In terms of the structure of beauty and skin care products, the main components are oils and water, followed by moisturizers. Facial skin care is one of the methods of facial beauty, which achieves the purpose of beauty and skin care through skin cleansing, nutrition, moisturizing and massage.

[0003] Generally, the production process of whitening products involves steps such as raw material mixing, heating, homogenization, stirring and defoaming. Regarding the defoaming process, vacuum defoaming is mostly used. During the vacuum defoaming process, strict control of pressure is required. Too high or too low pressure is not conducive to the elimination of bubbles. Whitening products are generally emulsions, essences, etc. Although they are liquids, their fluidity is poor and their viscosity is high. As a result, when defoaming, only using vacuum technology, on the one hand, the pressure value is prone to fluctuate, resulting in incomplete removal of bubbles. On the other hand, their poor fluidity will generate a large pressure on the upward movement of bubbles, resulting in the residue of some bubbles.

[0004] To solve the above problems, in the prior art, during defoaming in some production workshops, in cooperation with vacuum defoaming, a stirrer for slow stirring will be added inside the tank. For example, the continuous vacuum defoaming machine and defoaming method disclosed in the Chinese patent specification with the publication number CN116077996B, and the automatic vacuum defoaming machine disclosed in the Chinese patent specification with the publication number CN215691853U, so as to physically cut the bubbles in the underlying essence or emulsion, and at the same time make it in a dynamic state, accelerate the overflow of bubbles, and improve the bubble overflow efficiency.

[0005] However, the introduced mechanical stirring equipment, on the one hand, when the stirring speed is too fast, it is easy to generate new bubbles. And after use, the highly viscous emulsion or essence will adhere to the surface of the stirring equipment, and since it is located inside the production tank, it is also difficult to disassemble, resulting in large cleaning difficulty and affecting the overall production efficiency. Summary of the Invention

[0006] Aiming at the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing method of using mechanical stirring to assist vacuum defoaming has poor defoaming effect and is prone to cause difficult cleaning problems subsequently.

[0007] To solve the above problems, the present invention provides a preparation process of a whitening product for ginseng and sea buckthorn skin care. The whitening product includes the following ingredients calculated by mass fraction: Phase A 60.0 - 65.0%: Water not less than 50.0%, Butylene Glycol 2.0 - 4.0%, Glycerin 2.0 - 4.0%, p-Hydroxyacetophenone 0.2 - 0.4%, Carbomer 0.1 - 0.3%; Phase B 20.0 - 30.0%: Mineral Oil 7.0 - 9.0%, Polydimethylsiloxane 4.0 - 6.0%, 1.0 - 3.0% Cetearyl Polyether-21, Glyceryl Stearate + PEG-100 Stearate 2.0 - 4.0%, Cyclopentasiloxane + Cyclohexasiloxane 4.0 - 6.0%, Cetearyl Alcohol 1.0 - 3.0%; Phase C 10.5 - 18%: Yeast / Rice Ferment Filtrate 1.0 - 3.0%, 1,2-Hexanediol + p-Hydroxyacetophenone 0.4 - 0.6%, Papain + Sclerotium Gum + Glycerin 0.8 - 1.2%, Niacinamide 2.0 - 4.0%, 3-O-Ethyl Ascorbic Acid 1.0 - 3.0%, Ginseng Root Extract + 1,2-Hexanediol, etc. 1.0 - 3.0%, Palmitoyl Hexapeptide-12 + Glycerin 0.8 - 1.2%, Aminomethylpropanol + Water 0.2 - 0.4%, Rose Flower Oil 0.05 - 0.12%, Sea Buckthorn Fruit Water Extract 2.0 - 4.0%; The preparation process of the ginseng and sea buckthorn skin care whitening product includes the following steps: S1. Add Phase A to the emulsification tank in sequence, stir at a speed of 30 - 55 r / min, and control the emulsification tank to gradually heat up to 85°C, then perform homogenization treatment at a speed of 1000 - 2800 r / min for 5 - 20 min until the material is fully dispersed and uniform without particles; S2. Add Phase B to the oil phase tank in sequence, control the oil phase tank to heat up to 85°C, and then stir at a speed of 30 - 55 r / min until it is dispersed evenly without solid particles; S3. Start homogenization: First, slowly pump Phase B into Phase A and perform homogenization for 5 - 20 min until the material is uniform and delicate without particles to obtain an intermediate product, and maintain the homogenization speed at 1000 - 2800 r / min; S4. Continuously stir the intermediate product in Step S3 at a stirring speed of 30 - 55 r / min. When the intermediate product cools down to 45°C, add each ingredient of Phase C in sequence, stir evenly again to obtain a crude emulsion, and perform gradient vacuum defoaming. At the same time, control the crude emulsion in the emulsification tank to continuously perform external circulation through the in vitro dynamic liquid unit, thereby continuously replacing the emulsion distribution above and below the crude emulsion in the emulsification tank to assist in defoaming; S5. Then continuously stir until it cools down to 38°C for inspection. After passing the inspection, discharge the product at a speed of 30 - 55 r / min; S6. After discharging, the material is left to stand for 12 hours, and samples are taken for testing. After passing the inspection, the material is filled and packaged, and the finished product is put into storage after passing the inspection; The extracorporeal dynamic liquid unit includes an external circulation pipe fixedly connected between the bottom of the emulsification tank and the outer end of the emulsification tank, a tube bundle ring movably sleeved on the outside of the external circulation pipe, a physical defoaming cylinder threadedly installed on the outside of the external circulation pipe, and a vertical moving unit fixedly installed on the ground, the vertical moving unit includes a base, a vertical plate fixedly connected to the upper end of the base and an electric push rod, a slider is slidably connected to the vertical plate, the slider is fixedly connected to the top of the electric push rod, and one end of the slider away from the vertical plate is fixedly connected to the outer end of the tube bundle ring, wherein the upper port end of the external circulation pipe is lower than the liquid level of the crude emulsion in the emulsification tank.

[0008] In the above-mentioned preparation process of the whitening product for ginseng skin care, the vacuum defoaming operation is assisted by an extracorporeal dynamic liquid unit. During the defoaming process, the crude emulsion in the emulsification tank is circulated externally to switch the distribution positions of the upper and lower crude emulsion products. Therefore, the crude emulsion can be kept in a dynamic state without direct contact with the crude emulsion, thereby accelerating the elimination of bubbles. At the same time, it can effectively alleviate the problem that the bubbles at the bottom are difficult to discharge upward due to the high viscosity of the crude emulsion itself. Compared with the mechanical stirring assisted vacuum defoaming operation in the prior art, the defoaming effect is greatly improved, and the subsequent cleaning difficulty is relatively small, thereby effectively ensuring the production efficiency of the whitening product.

[0009] As a further improvement of the present application, the specific configuration of the gradient vacuum defoaming is: S41, first stage: vacuum evacuation of bubbles at a pressure of -0.06 MPa and maintaining for 2 minutes to release large bubbles; S42, second stage: vacuum evacuation of bubbles is performed at a pressure of -0.09 MPa and maintained for 5 minutes to eliminate microbubbles; S43, the third stage: slowly releasing the air pressure to -0.07 MPa and maintaining it for 3 minutes to balance the system pressure; During the three stages of defoaming, the air pressure in the emulsification tank is detected in real time by a pressure gauge, and real-time regulation is performed to maintain the air pressure in the tank at the target pressure.

[0010] As a further improvement of the present application, the external circulation pipe is a U-shaped structure, and the vertical section of the U-shaped structure facing the vertical plate includes a bubble cutting section and a liquid pressing section fixedly connected to the upper end of the bubble cutting section, the bundle tube ring sleeve is arranged outside the liquid pressing section, the liquid pressing section is an elastic sealing structure, and the bubble cutting section is a hard shaping structure.

[0011] As a further improvement of the present application, the tube bundle ring includes an inner ring body and an outer hoop fixedly sleeved on the outer end of the inner ring body. The inner ring body includes an outer bearing layer located on the outer layer and an inner diameter-changing layer located on the inner layer. The upper and lower end faces of the outer bearing layer and the inner diameter-changing layer are fixedly sealed through hard ring bodies. On the inner walls of the outer bearing layer and the inner diameter-changing layer close to each other, a plurality of electromagnetic sheets and magnetic half-columns distributed in an annular array are respectively installed, and the plurality of electromagnetic sheets and magnetic half-columns correspond to each other one by one.

[0012] As a further improvement of the present application, after the electromagnetic sheet is energized, it generates a magnetic repulsive force on the magnetic half-column. The inner diameter-changing layer is an elastic sealing structure. The upper end of the upper hard ring body is fixedly connected with an upper air pipe communicating with the external air source, and the upper air pipe communicates with the space surrounded by the outer bearing layer and the inner diameter-changing layer.

[0013] As a further improvement of the present application, the physical defoaming cylinder is threadedly installed on the bubble-cutting section. The physical defoaming cylinder is a hollow double-layer structure, and a lower air pipe is fixedly connected to the outer end of the physical defoaming cylinder, and the lower air pipe also communicates with the external air source.

[0014] As a further improvement of the present application, the physical defoaming cylinder includes an outer cover cylinder, an inner ring sheet fixedly connected to the inner ring surface of the outer cover cylinder, and a plurality of variable orifice meshes respectively fixedly connected to the inner ring surface of the inner ring sheet. The variable orifice mesh includes a plurality of hollow microtubes distributed in a crisscross manner. Both ends of the hollow microtube are fixedly connected to the inner ring sheet and communicate with the space between the outer cover cylinder and the inner ring sheet. The hollow microtube is an elastic sealing structure.

[0015] As a further improvement of the present application, the specific steps of the external dynamic liquid unit for assisting in defoaming are as follows: S4a. Since both ends of the outer circulation pipe communicate with the emulsification tank, and the upper port of the outer circulation pipe is lower than the liquid level of the crude emulsion, the outer circulation pipe is filled with the emulsion dairy product. During vacuum defoaming, first determine the defoaming stage, and then inflate the physical defoaming cylinder through the lower air pipe, thereby changing the aperture of the variable orifice mesh; S4b. Then, first control the tube bundle ring to be energized, so that the inner wall of the tube bundle ring gradually decreases and squeezes the liquid-pressing section, causing the liquid-pressing section and its corresponding part to shrink, and the inner diameter to decrease significantly. Then, control the tube bundle ring to move vertically downward through the electric push rod, so that the position where the inner diameter of the liquid-pressing section decreases changes from top to bottom continuously, thereby squeezing the crude emulsion in the liquid-pressing section to move downward and being forced to pass through the variable orifice mesh, realizing physical cutting of the bubbles and entering the bottom of the emulsification tank. At the same time, the crude emulsion in the upper part of the emulsification tank enters the outer circulation pipe again along the upper end pipe orifice of the outer circulation pipe; S4c. When the tube bundle ring reaches the bottom of the liquid-pressing section, first fill the tube bundle ring with saturated gas through the upper air pipe, then cut off the power supply, and then slowly release the saturated gas, so that the inner layer of the tube bundle ring slowly returns to its original state, and then the liquid-pressing section slowly returns to its original state accordingly. When the tube bundle ring completely returns to its original state, control the tube bundle ring to move upward to the top of the liquid-pressing section again through the electric push rod; S4d. Repeat steps S4b - S4c until the current defoaming stage is completed, and then repeat steps S4a - S4c to enter the next defoaming stage until defoaming is completed.

[0016] In summary, through the operation of the in vitro dynamic liquid unit assisted vacuum defoaming, during the defoaming process, the crude emulsion in the emulsifying tank is circulated externally to convert the distribution positions of the crude emulsion above and below, so that it can be in a dynamic state without directly contacting the crude emulsion, accelerating the elimination of bubbles. At the same time, it can effectively alleviate the problem that the bubbles at the bottom are difficult to rise and discharge due to the relatively high viscosity of the crude emulsion itself. Compared with the operation of mechanical stirring assisted vacuum defoaming in the prior art, the defoaming effect is greatly improved, and the subsequent cleaning difficulty is relatively small, thus effectively ensuring the production efficiency of this whitening product. Description of the Drawings

[0017] Figure 1 It is the main flow block diagram of the first embodiment of this application; Figure 2 It is the test result diagram of the content of diethylene glycol in the white emulsion after defoaming in the first embodiment of this application; Figure 3 It is the test result diagram of the content of benzene in the white emulsion after defoaming in the first embodiment of this application; Figure 4 It is the test result diagram of the content of hexachlorocyclohexane and DDT in the white emulsion after defoaming in the first embodiment of this application; Figure 5 It is the test result diagram of the guinea pig skin allergic reaction of the white emulsion after defoaming in the first embodiment of this application; Figure 6 It is the three - dimensional view of the emulsifying tank equipped with the in vitro dynamic liquid unit in the first and second embodiments of this application; Figure 7 It is the front view of the emulsifying tank equipped with the in vitro dynamic liquid unit in the first and second embodiments of this application; Figure 8 It is the three - dimensional view of the tube - bundle ring in the first and second embodiments of this application; Figure 9 It is the top - view cross - sectional diagram of the tube - bundle ring in the first and second embodiments of this application; Figure 10 It is the cross - sectional diagram when the inner diameter of the tube - bundle ring in the first and second embodiments of this application is reduced to squeeze the liquid - pressing section; Figure 11 It is the three - dimensional view when the tube - bundle ring of the in vitro dynamic liquid unit in the first and second embodiments of this application moves downward; Figure 12 It is the schematic diagram of the front - and - back change of the tube - bundle ring at the liquid - pressing section during auxiliary defoaming in the first and second embodiments of this application; Figure 13 This is a top-down sectional view of the physical defoaming cylinder of the second embodiment of the present application.

[0018] Description of reference numerals in the figure: 1 Emulsification tank, 2 External circulation pipe, 31 Liquid pressure section, 32 Foam cutting section, 4 Bundle tube ring, 401 Outer hoop, 41 Inner ring body, 411 Outer bearing layer, 412 Inner variable diameter layer, 42 Electromagnetic sheet, 43 Magnetic half column, 5 Upper air pipe, 61 Base, 62 Vertical plate, 63 Electric push rod, 601 Slide block, 7 Physical defoaming cylinder, 701 Lower air pipe, 71 Outer cover cylinder, 72 Inner ring piece, 73 Variable pore net. Specific implementation manners

[0019] The following will make a detailed description of the two embodiments of the present application with reference to the accompanying drawings.

[0020] The first embodiment: Figure 1 It is shown that a preparation process of a whitening product for ginseng and sea buckthorn skin care, the whitening product includes the following ingredients according to mass fraction: Phase A 60.5%: Water (solvent / base carrier) 50.0%, Butylene glycol (humectant) 3.0%, Glycerin (humectant) 3.0%, p-Hydroxyacetophenone (antioxidant) 0.3%, Carbomer (thickener) 0.2%; Phase B 25.0%: Mineral oil (emollient) 8.0%, Polydimethylsiloxane (emollient) 5.0%, Ceteareth-21 (emulsifier) 2.0%, Glyceryl stearate + PEG-100 stearate (emulsifier) 3.0%, Cyclopentasiloxane + Cyclohexasiloxane (lubricant) 5.0%, Cetearyl alcohol (emulsification / thickening) 2.0%; Phase C 14.5%: Yeast / rice fermentation product filtrate (whitening / repairing) 2.0%, 1,2-Hexanediol + p-Hydroxyacetophenone (preservative synergist) 0.5%, Papain + Sclerotium gum + Glycerin, etc. (gentle exfoliation) 1.0%, Niacinamide (whitening) 3.0%, 3-O-Ethyl ascorbic acid (VC derivative, whitening) 2.0%, Ginseng root extract + 1,2-Hexanediol, etc. (antioxidant) 1.5%, Palmitoyl hexapeptide-12 + Glycerin (anti-wrinkle) 1.0%, Aminomethylpropanol + Water (pH adjusted to 5.5 - 6.0) 0.3%, Rose oil (aromatic / soothing) 0.1%, Sea buckthorn fruit water extract (antioxidant) 3.0%; The above is only one set of formulation data, and during specific implementation, the dosages of each ingredient can be adjusted within the specified range according to actual needs.

[0021] The preparation process of the whitening product for ginseng and sea buckthorn skin care includes the following steps: S1. Add phase A to the emulsifying tank in sequence, stir at a speed of 30 - 55 r / min, and control the emulsifying tank to gradually heat up to 85°C. Then, perform homogenization treatment at a speed of 1000 - 2800 r / min for 5 - 20 min until the material is completely dispersed evenly without particles. S2. Add phase B to the oil phase tank in sequence, control the oil phase tank to heat up to 85°C, and then stir at a speed of 30 - 55 r / min until it is dispersed evenly without solid particles. S3. Start homogenization: First, slowly pump phase B into phase A and perform homogenization for 5 - 20 min until the material is uniform, delicate, and without particles to obtain an intermediate product. The homogenization speed is maintained at 1000 - 2800 r / min. S4. Continuously stir the intermediate product in step S3 at a stirring speed of 30 - 55 r / min. When the intermediate product cools down to 45°C, add each ingredient of phase C in sequence and stir evenly again to obtain a crude emulsion. Then, perform gradient vacuum defoaming. At the same time, control the crude emulsion in the emulsifying tank to continuously perform external circulation through the in vitro dynamic liquid unit, thereby continuously replacing the emulsion distribution above and below the crude emulsion in the emulsifying tank to assist defoaming. The specific settings of the gradient vacuum defoaming are as follows: S41. The first stage: Conduct vacuum air bubble extraction at a pressure of -0.06 MPa and maintain it for 2 minutes to release large air bubbles. S42. The second stage: Conduct vacuum air bubble extraction at a pressure of -0.09 MPa and maintain it for 5 minutes to eliminate micro air bubbles. S43. The third stage: Slowly release the pressure to -0.07 MPa and maintain it for 3 minutes to balance the system pressure. During the three stages of defoaming, the air pressure in the emulsifying tank is detected in real time through a pressure gauge and adjusted in real time to maintain the air pressure in the tank at the target air pressure. S5. Then, continuously stir until it cools down to 38°C and send it for inspection. After passing the inspection, discharge the material at a speed of 30 - 55 r / min. S6. After discharging, let the material stand for 12 h, take samples for testing. After passing the inspection, fill, package, and store in the warehouse after passing the final product inspection. The inspection results of the sample sent for inspection in step S5 are as follows: As Figure 2 , which is the test result of the diethylene glycol content. The test basis is QB / T 5411 - 2019 "Determination of Diethylene Glycol, a Prohibited Substance in Cosmetics - Gas Chromatography Method" and "Technical Specifications for Cosmetics Safety" (2015 Edition). From this test result, it can be seen that the items tested meet the requirements of "Technical Specifications for Cosmetics Safety" (2015 Edition).

[0022] As Figure 3, which is the test result of benzene content. The test is based on Section 2.32, Chapter 4 of "Technical Specifications for Cosmetics Safety" (2015 Edition). From this test result, it can be seen that the tested items meet the requirements of "Technical Specifications for Cosmetics Safety" (2015 Edition).

[0023] Such as Figure 4 , which is the test result of the content of BHC and DDT. The test basis is: GB / T39665-2020 "Determination of 55 kinds of banned pesticide residues in cosmetics containing plant extracts". From this test result, it can be seen that the detected contents of both are lower than the limits.

[0024] Such as Figure 5 , which is the test result of the guinea pig skin allergic reaction test (BT method) of the test substance. The test substance is the white emulsion obtained after the defoaming treatment in step S4 of this preparation process and cooling to 38°C. According to the test result, no skin allergic reaction is found.

[0025] After the above various tests, it shows that the prepared product passes the inspection.

[0026] Such as Figure 6-7 , the in vitro dynamic liquid unit includes an external circulation pipe 2 fixedly connected between the bottom of the emulsifying tank 1 and the outer end of the emulsifying tank 1, a bundle pipe ring 4 movably sleeved outside the external circulation pipe 2, and a vertical moving unit fixedly installed on the ground. The vertical moving unit includes a base 61, a vertical plate 62 fixedly connected to the upper end of the base 61, and an electric push rod 63. A slider 601 is slidably connected to the vertical plate 62. The slider 601 is fixedly connected to the top of the electric push rod 63. One end of the slider 601 away from the vertical plate 62 is fixedly connected to the outer end of the bundle pipe ring 4. The upper port of the external circulation pipe 2 is lower than the liquid level of the crude emulsion in the emulsifying tank 1, which effectively ensures that the external circulation pipe 2 can be filled with the crude emulsion and is not likely to have empty areas, thereby effectively avoiding the introduction of new bubbles into the emulsified crude due to air areas.

[0027] The bottom of the emulsifying tank 1 can be connected to the external circulation pipe 2 through a three-way structure (not shown), so that the setting of the external circulation pipe 2 does not affect the normal discharging of the emulsifying tank 1.

[0028] The external circulation pipe 2 is of a U-shaped structure, and the vertical section of the U-shaped structure facing the vertical plate 62 includes a bubble-cutting section 32 and a liquid-pressing section 31 fixedly connected to the upper end of the bubble-cutting section 32. The bundle pipe ring 4 is sleeved outside the liquid-pressing section 31. The liquid-pressing section 31 is an elastic sealing structure, and the bubble-cutting section 32 is a rigid shaping structure. Such as Figure 11, when the tube bundle ring 4 moves up and down at 3, the liquid pressing section 31 can change with the change of the inner ring body 41. Furthermore, when it moves down, it can effectively ensure that part of the emulsion in the outer circulation pipe 2 is squeezed downward and then enters the bottom of the emulsifying tank 1. The crude emulsion above the emulsifying tank 1 can enter the outer circulation pipe 2 through the upper opening of the outer circulation pipe 2. Then, through the external circulation of the crude emulsion, the position of the upper and lower crude emulsions in the emulsifying tank 1 is changed, so that the crude emulsion is in a dynamic state, facilitating the overflow of bubbles. At the same time, the crude emulsion below can gradually move up, effectively avoiding the problem that some bubbles in the bottom emulsion are difficult to overflow across the relatively deep crude emulsion.

[0029] Such as Figure 8-9 , the tube bundle ring 4 includes an inner ring body 41 and an outer hoop 401 fixedly sleeved on the outer end of the inner ring body 41. The inner ring body 41 includes an outer bearing layer 411 located on the outer layer and an inner variable diameter layer 412 located on the inner layer. The upper and lower end faces between the outer bearing layer 411 and the inner variable diameter layer 412 are fixedly sealed by hard ring bodies. On the inner walls of the outer bearing layer 411 and the inner variable diameter layer 412 close to each other, a plurality of electromagnetic sheets 42 and magnetic half-columns 43 distributed in an annular array are respectively installed, and the plurality of electromagnetic sheets 42 and magnetic half-columns 43 correspond one by one. After the electromagnetic sheets 42 are energized, magnetic repulsive force is generated on the magnetic half-columns 43. Such as Figure 10 , by controlling the energization of the electromagnetic sheets 42, the corresponding magnetic half-columns 43 can be pushed away, and then the inner diameter of the inner variable diameter layer 412 is gradually reduced, achieving the effect of synchronously reducing the liquid pressing section 31. When the aperture at the corresponding position of the liquid pressing section 31 and the tube bundle ring 4 is reduced, when the tube bundle ring 4 moves down, part of the crude emulsion in the liquid pressing section 31 can be squeezed downward, and then the external circulation of the crude emulsion is realized, thereby realizing the change of its upper and lower positions.

[0030] The inner variable diameter layer 412 is an elastic sealing structure. The upper end of the upper hard ring body is fixedly connected with an upper air pipe 5 communicated with the external air source. The upper air pipe 5 is communicated with the space enclosed by the outer bearing layer 411 and the inner variable diameter layer 412. When the tube bundle ring 4 reaches the bottom of the liquid pressing section 31, it can be inflated first and then powered off, so that the inner diameter of the tube bundle ring 4 will not recover quickly. With the operation of slowly discharging air, it recovers slowly, and then the corresponding liquid pressing section 31 is not easy to quickly recover its deformation, and the crude emulsion inside it is not easy to cause large oscillations due to quick recovery of deformation, effectively avoiding the accidental generation of new bubbles.

[0031] The specific steps of the external dynamic liquid unit for assisting in defoaming are as follows: S4b. Such as Figure 12, then first control the beam tube ring 4 to be energized, so that the inner wall of the beam tube ring 4 gradually decreases and squeezes the liquid pressing section 31, causing the liquid pressing section 31 and its corresponding part to shrink, and the inner diameter significantly decreases. Then, control the beam tube ring 4 to move vertically downward through the electric push rod 63, so that the position where the inner diameter of the liquid pressing section 31 decreases continuously changes from top to bottom, thereby squeezing the crude emulsion in the liquid pressing section 31 to move downward, and being forced to pass through the variable pore mesh 73, realizing the physical cutting of bubbles, and entering the bottom of the emulsifying tank 1. At the same time, the crude emulsion in the upper part of the emulsifying tank 1 enters the outer circulation pipe 2 again through the upper pipe orifice of the outer circulation pipe 2; S4c. When the beam tube ring 4 reaches the bottom of the liquid pressing section 31, first fill the beam tube ring 4 with saturated gas through the upper gas pipe 5, then perform a power-off treatment, and then slowly release the saturated gas, so that the inner layer of the beam tube ring 4 slowly recovers, and then the liquid pressing section 31 slowly recovers accordingly. After the beam tube ring 4 is completely recovered, control the beam tube ring 4 to move upward to the top of the liquid pressing section 31 again through the electric push rod 63; S4d. Repeat steps S4b - S4c until defoaming is completed.

[0032] In summary, through the operation of the in vitro dynamic liquid unit-assisted vacuum defoaming, during the defoaming process, the crude emulsion in the emulsifying tank is circulated externally to convert the distribution positions of the crude emulsion above and below, so that it can be in a dynamic state without directly contacting the crude emulsion, accelerating the elimination of bubbles, and effectively alleviating the problem that the bubbles at the bottom are difficult to rise and discharge due to the large viscosity of the crude emulsion itself. Compared with the operation of mechanical stirring-assisted vacuum defoaming in the prior art, there are no additional components in the emulsifying tank 1 contacting the crude emulsion, and all power operations are located outside the emulsifying tank 1 and the outer circulation pipe 2, which can not only effectively improve the defoaming effect, but also relatively reduce the subsequent cleaning difficulty, thereby effectively ensuring the production efficiency of this whitening product.

[0033] The second implementation mode: Based on the first implementation mode, this implementation mode adds a physical defoaming cylinder 7 and its related operations, and the rest is the same as the first implementation mode.

[0034] Figure 13It is shown that a physical defoaming cylinder 7 is also installed outside the outer circulation pipe 2. The physical defoaming cylinder 7 is threadedly installed on the bubble-cutting section 32. The physical defoaming cylinder 7 is a hollow double-layer structure, and an air pipe 701 is fixedly connected to the outer end of the physical defoaming cylinder 7. The air pipe 701 is also communicated with an external air source. The physical defoaming cylinder 7 includes an outer cover cylinder 71, an inner ring plate 72 fixedly connected to the inner ring surface of the outer cover cylinder 71, and a plurality of variable orifice meshes 73 respectively fixedly connected to the inner ring surface of the inner ring plate 72. The variable orifice mesh 73 includes a plurality of hollow microtubes distributed in a criss-cross pattern. Both ends of the hollow microtubes are fixed to the inner ring plate 72 and communicated with the space between the outer cover cylinder 71 and the inner ring plate 72. The hollow microtubes are of an elastic sealing structure. During use, air can be filled into the space between the outer cover cylinder 71 and the inner ring plate 72 through the air pipe 701, so that a plurality of hollow microtubes expand, and then the intervals between them are reduced, achieving the effect of changing the aperture, so as to adapt to different stages of vacuum defoaming.

[0035] The specific steps of the in vitro dynamic liquid unit for assisting defoaming are as follows: S4a. Since both ends of the outer circulation pipe 2 are communicated with the emulsifying tank 1, and the upper port of the outer circulation pipe 2 is lower than the liquid level of the crude emulsion, the outer circulation pipe 2 is filled with the emulsion dairy product. During vacuum defoaming, first determine the defoaming stage, and then fill the physical defoaming cylinder 7 with air through the air pipe 701, so as to change the aperture of the variable orifice mesh 73; S4b. Then first control the beam tube ring 4 to be electrified, so that the inner wall of the beam tube ring 4 gradually decreases and squeezes the liquid-pressing section 31, so that the liquid-pressing section 31 and its corresponding part are wrinkled, and the inner diameter is significantly reduced. Then control the beam tube ring 4 to move vertically downward through the electric push rod 63, so that the position where the inner diameter of the liquid-pressing section 31 decreases changes from top to bottom continuously, so as to squeeze the crude emulsion in the liquid-pressing section 31 to move downward, and is forced to pass through the variable orifice mesh 73, realizing the physical cutting of bubbles and entering the bottom of the emulsifying tank 1. At the same time, the emulsified crude product in the upper part of the emulsifying tank 1 enters the outer circulation pipe 2 again through the upper pipe orifice of the outer circulation pipe 2; S4c. When the beam tube ring 4 reaches the bottom of the liquid-pressing section 31, first fill the beam tube ring 4 with saturated gas through the upper air pipe 5, then cut off the power supply, and then slowly release the saturated gas, so that the inner layer of the beam tube ring 4 slowly recovers, and then the liquid-pressing section 31 slowly recovers accordingly. When the beam tube ring 4 is completely recovered, control the beam tube ring 4 to move up to the top of the liquid-pressing section 31 again through the electric push rod 63; S4d. Repeat steps S4b - S4c until the current defoaming stage is completed, and then repeat steps S4a - S4c to enter the next defoaming stage until defoaming is completed.

[0036] In this embodiment, due to the arrangement of the physical defoaming cylinder 7, the crude emulsion squeezed by the beam tube ring 4 needs to be forced to pass through the variable pore mesh 73 before entering the emulsifying tank 1. When passing through the variable pore mesh 73, due to the mutual extrusion of multiple hollow microtubes, the bubbles in the crude emulsion passing through this place can be physically cut, thereby effectively accelerating the overflow of bubbles and improving the defoaming efficiency.

[0037] In addition, the physical defoaming cylinder 7 is threadedly installed at the corresponding position of the bubble cutting section 32 and the outer circulation pipe 2. When cleaning is required, it can be directly removed for cleaning. And during cleaning, the gas can be released to make the distance between multiple hollow microtubes larger, facilitating the flow of water, reducing the difficulty of flushing and cleaning. Moreover, it is located outside the emulsifying tank 1, making the installation and disassembly convenient. Compared with the mechanical stirring components in the prior art, the cleaning difficulty is still relatively low.

[0038] Combined with the current actual needs, the above-mentioned embodiment adopted in this application does not limit the protection scope thereto. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A preparation process for a whitening product for ginseng and sea buckthorn skin care, characterized in that: the whitening product includes the following ingredients calculated by mass fraction: Phase A 60.0 - 65.0%: water not less than 50.0%, butanediol 2.0 - 4.0%, glycerin 2.0 - 4.0%, p - hydroxyacetophenone 0.2 - 0.4%, carbomer 0.1 - 0.3%; Phase B 20.0 - 30.0%: mineral oil 7.0 - 9.0%, polydimethylsiloxane 4.0 - 6.0%, 1.0 - 3.0% cetearyl polyether-21, 2.0 - 4.0% glyceryl stearate + PEG-100 stearate, 4.0 - 6.0% cyclopentasiloxane + cyclohexasiloxane, 1.0 - 3.0% cetearyl alcohol; Phase C 10.5 - 18%: 1.0 - 3.0% yeast / rice fermentation filtrate, 0.4 - 0.6% 1,2-hexanediol + p-hydroxyacetophenone, 0.8 - 1.2% papain + sclerotium gum + glycerin, 2.0 - 4.0% niacinamide, 1.0 - 3.0% 3-O-ethyl ascorbic acid, 1.0 - 3.0% ginseng root extract + 1,2-hexanediol, etc., 0.8 - 1.2% palmitoyl hexapeptide-12 + glycerin, 0.2 - 0.4% aminomethyl propanol + water, 0.05 - 0.12% rose flower oil, 2.0 - 4.0% seabuckthorn fruit water extract; The preparation process of the ginseng and seabuckthorn skin care whitening product includes the following steps: S1. Add Phase A to the emulsifying tank in sequence, stir at a speed of 30 - 55 r / min, and control the emulsifying tank to gradually heat up to 85°C, then carry out homogenization treatment at a speed of 1000 - 2800 r / min for 5 - 20 min until the material is completely dispersed evenly without particles; S2. Add Phase B to the oil phase tank in sequence, control the oil phase tank to heat up to 85°C, and then stir at a speed of 30 - 55 r / min until it is dispersed evenly without solid particles; S3. Start homogenization: First, slowly pump Phase B into Phase A and carry out homogenization for 5 - 20 min until the material is uniform, delicate, and without particles to obtain an intermediate product, and maintain the homogenization speed at 1000 - 2800 r / min; S4. Continuously stir the intermediate product in Step S3 at a stirring speed of 30 - 55 r / min. When the intermediate product cools down to 45°C, add each ingredient of Phase C in sequence and stir evenly again to obtain a crude emulsion, and carry out gradient vacuum defoaming. At the same time, control the crude emulsion in the emulsifying tank to continuously carry out external circulation through the in vitro dynamic liquid unit, and then continuously replace the emulsion distribution above and below the crude emulsion in the emulsifying tank to assist in defoaming; S5. Then continuously stir until it cools down to 38°C for inspection. After passing the inspection, discharge the material at a speed of 30 - 55 r / min; S6. After discharging, let the material stand for 12 h, take samples for testing. After passing the inspection, fill, package, and store in the warehouse after passing the final product inspection; The in vitro dynamic liquid unit includes an external circulation pipe (2) fixedly connected between the bottom of the emulsifying tank (1) and the outer end of the emulsifying tank (1), a tube bundle ring (4) movably sleeved outside the external circulation pipe (2), a physical defoaming cylinder (7) threadedly installed outside the external circulation pipe (2), and a vertical moving unit fixedly installed on the ground. The vertical moving unit includes a base (61), a vertical plate (62) fixedly connected to the upper end of the base (61), and an electric push rod (63). A slider (601) is slidably connected to the vertical plate (62). The slider (601) is fixedly connected to the top of the electric push rod (63). One end of the slider (601) away from the vertical plate (62) is fixedly connected to the outer end of the tube bundle ring (4). The upper port of the external circulation pipe (2) is lower than the liquid level of the crude emulsion in the emulsifying tank (1).

2. The preparation process of a whitening product for ginseng and sea buckthorn skin care according to claim 1, characterized in that: The specific setting of the gradient vacuum defoaming is as follows: S41. First stage: Vacuum pumping of air bubbles is carried out at an air pressure of -0.06 MPa and maintained for 2 minutes to release large air bubbles; S42. Second stage: Vacuum pumping of air bubbles is carried out at an air pressure of -0.09 MPa and maintained for 5 minutes to eliminate micro air bubbles; S43. Third stage: The air pressure is slowly released to -0.07 MPa and maintained for 3 minutes to balance the system pressure; During the three stages of defoaming, the air pressure in the emulsifying tank is detected in real time by a pressure gauge and adjusted in real time to maintain the air pressure in the tank at the target air pressure.

3. The preparation process of a whitening product for ginseng and sea buckthorn skin care according to claim 2, characterized in that: The external circulation pipe (2) is of a U-shaped structure. The vertical section of the U-shaped structure facing the vertical plate (62) includes a bubble cutting section (32) and a liquid pressing section (31) fixedly connected to the upper end of the bubble cutting section (32). The tube bundle ring (4) is sleeved outside the liquid pressing section (31). The liquid pressing section (31) is an elastic sealing structure, and the bubble cutting section (32) is a rigid shaping structure.

4. The preparation process of a whitening product for ginseng and sea buckthorn skin care according to claim 3, characterized in that: The tube bundle ring (4) includes an inner ring body (41) and an outer hoop (401) fixedly sleeved on the outer end of the inner ring body (41). The inner ring body (41) includes an outer bearing layer (411) located on the outer layer and an inner variable diameter layer (412) located on the inner layer. The upper and lower end faces between the outer bearing layer (411) and the inner variable diameter layer (412) are fixedly sealed by a rigid ring body. A plurality of electromagnetic sheets (42) and magnetic half-columns (43) arranged in an annular array are respectively installed on the inner walls of the outer bearing layer (411) and the inner variable diameter layer (412) close to each other, and the plurality of electromagnetic sheets (42) and magnetic half-columns (43) correspond one by one.

5. The preparation process of a whitening product for ginseng and sea buckthorn skin care according to claim 4, characterized in that: After being energized, the electromagnetic sheet (42) generates a magnetic repulsive force on the magnetic half-column (43). The inner variable diameter layer (412) is an elastic sealing structure. The upper end of the upper rigid ring body is fixedly connected to an upper air pipe (5) communicated with the external air source. The upper air pipe (5) is communicated with the space surrounded by the outer bearing layer (411) and the inner variable diameter layer (412).

6. The preparation process of a whitening product for ginseng and sea buckthorn skin care according to claim 4, characterized in that: The physical defoaming cylinder (7) is threadedly installed on the bubble cutting section (32). The physical defoaming cylinder (7) is a hollow double-layer structure, and a lower air pipe (701) is fixedly connected to the outer end of the physical defoaming cylinder (7). The lower air pipe (701) is also communicated with the external air source.

7. The preparation process of a whitening product for ginseng and sea buckthorn skin care according to claim 6, characterized in that: The physical defoaming cylinder (7) includes an outer cover cylinder (71), an inner ring plate (72) fixedly connected to the inner ring surface of the outer cover cylinder (71), and a plurality of variable orifice meshes (73) respectively fixedly connected to the inner ring surface of the inner ring plate (72). The variable orifice mesh (73) includes a plurality of hollow microtubes distributed in a horizontal and vertical staggered manner. Both ends of the hollow microtube are fixed to the inner ring plate (72) and communicate with the space between the outer cover cylinder (71) and the inner ring plate (72). The hollow microtube is an elastic sealing structure.

8. The preparation process of a whitening product for ginseng and sea buckthorn skin care according to claim 7, characterized in that: The specific steps of the extracorporeal dynamic liquid unit for assisting defoaming are as follows: S4a. Since both ends of the outer circulation pipe (2) communicate with the emulsifying tank (1), and the upper port of the outer circulation pipe (2) is lower than the liquid level of the crude emulsion, the outer circulation pipe (2) is filled with the crude emulsion. During vacuum defoaming, first determine the defoaming stage, and then inflate the physical defoaming cylinder (7) through the lower air pipe (701), thereby changing the aperture of the variable orifice mesh (73). S4b. Then, first control the beam tube ring (4) to be energized, so that the inner wall of the beam tube ring (4) gradually decreases and squeezes the liquid pressing section (31), causing the liquid pressing section (31) and its corresponding part to shrink, and the inner diameter to decrease significantly. Then, control the beam tube ring (4) to move vertically downward through the electric push rod (63), so that the position where the inner diameter of the liquid pressing section (31) decreases changes from top to bottom continuously, thereby squeezing the crude emulsion in the liquid pressing section (31) to move downward, and being forced to pass through the variable orifice mesh (73) to achieve physical cutting of the bubbles and enter the bottom of the emulsifying tank (1). At the same time, the crude emulsion in the upper part of the emulsifying tank (1) re-enters the outer circulation pipe (2) through the upper pipe orifice of the outer circulation pipe (2). S4c. When the beam tube ring (4) reaches the bottom of the liquid pressing section (31), first fill the beam tube ring (4) with saturated gas through the upper air pipe (5), then cut off the power supply, and then slowly release the saturated gas to make the inner layer of the beam tube ring (4) slowly recover, thereby causing the liquid pressing section (31) to recover slowly. When the beam tube ring (4) is completely recovered, control the beam tube ring (4) to move upward to the top of the liquid pressing section (31) again through the electric push rod (63). S4d. Repeat steps S4b - S4c until the current defoaming stage is completed, and then repeat steps S4a - S4c to enter the next defoaming stage until defoaming is completed.

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