Preparation method of moisturizing skin cream for repairing at night

By adding a soothing agent to the overnight repair moisturizing skin cream and using a stirring and cooling device, the skin allergy problem of the overnight repair moisturizing skin cream was solved, and the gentleness of the skin cream and the preparation efficiency were improved.

CN121797159APending Publication Date: 2026-04-07冯丽娟
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2021-04-25
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The existing nighttime repair moisturizing skin cream causes skin sensitivity and mild allergic reactions in some users due to prolonged contact with the skin.

Method used

When preparing the nighttime repair moisturizing skin cream, soothing agents such as aloe vera peel, allantoin, polyethylene glycol distearate, and purslane extract are added to neutralize the irritation of the skin cream. A stirring and cooling device is used to accelerate the cooling of the solution and improve the uniformity of mixing.

Benefits of technology

It reduces the skin irritation of the skin cream, improves its gentleness during use, and reduces preparation time and solution cooling time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of skin cream, and particularly relates to moisturizing skin cream for repairing at night and a preparation method of the moisturizing skin cream. A top cover is mounted at the top of the working box; a motor is fixedly connected to the inner side wall of the bottom of the working box; the output end of the motor is fixedly connected with a stirring cooling barrel; a fixing rod is fixedly connected to the center of the bottom of the top cover; the middle part of the fixed rod is fixedly connected with a stirring impeller; a plurality of groups of heat conducting plates are fixedly connected to the side wall of the stirring and cooling barrel; by adding the moderator during preparation of the moisturizing skin cream for repairing at night, the irritation of the moisturizing skin cream for repairing at night can be neutralized, so that the moisturizing skin cream is softer during use, and the irritation to the skin of a user is reduced.
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Description

Technical Field

[0001] This invention belongs to the field of skin cream technology, specifically a method for preparing a nighttime repair moisturizing skin cream. Background Technology

[0002] Skin creams are cosmetics used to maintain adequate total moisture in the skin, especially in the outermost stratum corneum. They are characterized by not only maintaining the skin's moisture balance but also replenishing essential oily and hydrophilic moisturizing components and water. Furthermore, they act as carriers for active ingredients and medications, allowing them to be absorbed by the skin, thus achieving the purpose of conditioning and nourishing it. They have a wide range of applications.

[0003] Some technical solutions for skin creams have also appeared in the prior art. For example, a Chinese patent with application number 2020100181055 discloses a whitening skin cream and its preparation method, which is made from the following raw materials: glycerin, propylene glycol, xanthan gum, emulsifier, emollient, vitamin E, menthol lactate, methylparaben, skin conditioning agent, moisturizer, sodium chloride, fragrance, and purified water.

[0004] Currently, with existing technology, when using nighttime repair moisturizing skin cream, because it is in long-term contact with the skin and some users have sensitive skin, mild allergic reactions may occur. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies and address the issue that nighttime repair moisturizing skin creams, which are in prolonged contact with the skin and cause mild allergic reactions in some users with sensitive skin, this invention proposes a nighttime repair moisturizing skin cream and its preparation method.

[0006] The technical solution adopted by this invention to solve its technical problem is: a nighttime repair moisturizing skin cream and its preparation method, wherein the nighttime repair moisturizing skin cream is composed of the following raw materials in parts by weight: 5-20 parts of alkyl phosphate 5-30 parts of alkyl glucoside 5-50 parts of glyceryl stearate 5-50 parts of octadecyl alcohol mixture 1-10 parts of microcrystalline wax 5-40 parts of isostearate 5-40 parts of isononyl isononanoate 5-30 parts of dimethyl silicone oil 5-30 parts of cyclomethyl silicone oil 5-50 parts of natural squalane 10-60 parts of soothing agent; By adding a soothing agent during the preparation of the nighttime repair moisturizing skin cream, the irritation of the nighttime repair moisturizing skin cream can be neutralized, making it gentler to use and reducing irritation to the skin of the user.

[0007] Preferably, the moderating agent is composed of the following raw materials in parts by weight: 12-15 portions of aloe vera peel 1-2 parts allantoin 6-7 parts of polyethylene glycol distearate 1-2 portions of purslane extract.

[0008] A nighttime repair moisturizing skin cream and its preparation method are disclosed. The preparation method is applicable to the aforementioned nighttime repair moisturizing skin cream and includes the following steps: S1: Now, alkyl phosphate, alkyl glucoside, glyceryl stearate, octadecyl alcohol mixture and microcrystalline wax are placed inside the container for preheating treatment; S2: When the temperature reaches 50°C, add isopropyl isostearate, isononyl isononanoate, dimethyl silicone oil, cyclomethyl silicone oil and natural squalane into the container in sequence, raise the temperature to 70°C, and stir during the heating process at a speed of 800-1500 r / min. Stop stirring after stirring for 50 minutes. S3: Place the solution obtained in S2 into the stirring and cooling device, and add the soothing agent at the same time. Then turn on the cooling tank and set its rotation speed to 800-1500 r / min. When the temperature drops to 30 degrees Celsius, pour it into the storage container to complete the preparation of the nighttime repair moisturizing skin cream.

[0009] Preferably, the stirring and cooling device for the cooling solution in S2 includes a working box; a top cover is installed on the top of the working box; a motor is fixedly connected to the inner side wall of the bottom of the working box; a stirring and cooling barrel is fixedly connected to the output end of the motor; a fixing rod is fixedly connected to the center of the bottom of the top cover; a stirring impeller is fixedly connected to the middle of the fixing rod; multiple sets of heat-conducting plates are fixedly connected to the side wall of the stirring and cooling barrel; when each solution is put into the stirring and cooling barrel inside the working box, the motor can be turned on to drive the stirring and cooling barrel to rotate. At this time, the solution inside the stirring and cooling barrel will rotate synchronously, and some of the heat inside the night repair water moisturizing skin cream solution will be conducted to the heat-conducting plates and then dissipated by the heat-conducting plates outside the stirring and cooling barrel, thus accelerating the cooling speed of the night repair water moisturizing skin cream solution inside the stirring and cooling barrel.

[0010] Preferably, the fixed rod is provided with multiple sets of striking nets in the middle; the striking nets are provided on the fixed rod in multiple sets; by providing striking nets at the bottom of the fixed rod, the rotating overnight repair water moisturizing skin cream solution can come into contact with the striking nets, breaking up the clumping phenomenon in the overnight repair water moisturizing skin cream solution, and can also make the overnight repair water moisturizing skin cream solution inside the stirring and cooling tank more evenly stirred.

[0011] Preferably, the heat-conducting plate has multiple sets of heat-conducting rods on the side wall located inside the stirring and cooling barrel; the heat-conducting rods are fixed to the heat-conducting plate; by having multiple sets of heat-conducting rods on the heat-conducting plate, the amount of heat that can be dissipated from the nighttime repair water-moisturizing skin cream solution can be increased, further improving the cooling speed of the nighttime repair water-moisturizing skin cream solution.

[0012] Preferably, the heat-conducting rod has a piston chamber inside; an iron ball is placed inside the piston chamber; a magnet is fixedly connected to the side of the piston chamber away from the heat-conducting plate; a piston plate is slidably connected inside the piston chamber; a flexible cutter is fixedly connected to the side of the piston plate away from the iron ball; when the heat-conducting plate drives the heat-conducting rod to rotate, the iron ball will move away from the magnet due to centrifugal force, and then the flexible cutter will be pushed out from the inside of the heat-conducting rod by the piston plate. This can further increase the contact area between the heat-conducting rod and the night repair water moisturizing skin cream solution, and can also cut some of the raw material fibers inside the night repair water moisturizing skin cream solution, so that the night repair water moisturizing skin cream solution is more thoroughly mixed inside the stirring and cooling tank.

[0013] Preferably, the flexible cutter has an elastic blade hinged to its side wall; multiple sets of elastic blades are provided on the flexible cutter, and the blade edges are wavy; a spring connects the elastic blades to the flexible cutter; when the flexible cutter extends out of the surface of the heat-conducting rod, the elastic blades will be lifted off the flexible cutter under the action of the spring, which can increase the contact area between the flexible cutter and the night repair water moisturizing skin cream solution, and at the same time can cut smaller raw materials, reducing the large pieces of raw materials inside the stirring and cooling tank.

[0014] Preferably, an iron wire is fixed to the arc-shaped blade edge of the elastic blade; by providing an iron wire on the elastic blade, when the elastic blade comes into contact with the raw material inside the stirring and cooling tank, it first impacts the iron wire, and some of the lumpy raw material will be cut and broken, and then impact the blade edge of the elastic blade. This operation will make the lumpy raw material inside the stirring and cooling tank more evenly stirred.

[0015] Preferably, the bottom side wall of the working chamber has multiple sets of air inlets; the top side wall of the working chamber has multiple sets of air outlets; the side wall of the stirring and cooling barrel is fitted with turbine blades; the turbine blades are fixedly connected to the stirring and cooling barrel; by fixing the turbine blades to the side wall of the stirring and cooling barrel inside the working chamber, the air circulation inside the working chamber can be accelerated, the heat dissipation on the heat conduction plate can be accelerated, and the cooling speed of the night repair water moisturizing skin cream solution inside the stirring and cooling barrel can be greatly accelerated.

[0016] The beneficial effects of this invention are: 1. This invention provides a nighttime repair water-based skin cream and its preparation method. By adding a soothing agent during the preparation of the nighttime repair water-based skin cream, the irritation of the nighttime repair water-based skin cream can be neutralized, making it gentler to use and reducing irritation to the skin of the user.

[0017] 2. In this invention, by adding multiple heat-conducting fins to the side wall of the stirring tank inside the stirring and cooling device during the preparation of the nighttime repair water-moisturizing skin cream, the cooling rate of the nighttime repair water-moisturizing skin cream solution inside the stirring and cooling tank can be increased during operation, thereby reducing the preparation time.

[0018] 3. In this invention, by adding a heat-conducting rod inside the stirring and cooling tank, the heat inside the nighttime repair water-based moisturizing skin cream is dissipated more quickly when the stirring and cooling tank rotates, further reducing the cooling time of the nighttime repair water-based moisturizing skin cream solution. Furthermore, by adding a retractable blade to the heat-conducting rod, the contact area between the nighttime repair water-based moisturizing skin cream and the heat-conducting rod can be further increased. Moreover, the blade can chop up some of the fibrous impurities inside the nighttime repair water-based moisturizing skin cream solution, thereby increasing the stirring effect. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a perspective view of the present invention; Figure 2 This is a sectional view of the present invention; Figure 3 This is a cross-sectional view of the heat-conducting rod; Figure 4 This is a partial cross-sectional view of the mixing cutter; Figure 5 This is a flowchart of the method in this invention.

[0020] Legend: 1. Working box; 11. Top cover; 2. Motor; 21. Stirring and cooling tank; 22. Fixing rod; 23. Stirring impeller; 24. Heat-conducting plate; 25. Impact net; 3. Heat-conducting rod; 4. Piston chamber; 41. Iron ball; 42. Magnet; 43. Piston plate; 44. Flexible cutter; 5. Elastic blade; 6. Iron wire; 7. Turbine blade. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Specific implementation examples are given below.

[0023] Example 1 A nighttime repairing moisturizing skin cream is composed of the following ingredients in parts by weight: 5 parts alkyl phosphate, 5 parts alkyl glucoside, 5 parts glyceryl stearate, 5 parts octadecyl mixed alcohol, 1 part microcrystalline wax, 5 parts isopropyl isostearate, 5 parts isononyl isononanoate, 5 parts dimethyl silicone oil, 5 parts cyclomethyl silicone oil, 5 parts natural squalane, and 10 parts soothing agent; the soothing agent is composed of the following ingredients in parts by weight: 12 parts aloe vera peel, 1 part allantoin, 6 parts polyethylene glycol distearate, and 1 part purslane extract.

[0024] Ten groups of people with different skin sensitivities were selected, with three people in each group. Each person applied a nighttime repair moisturizing skin cream once a day, and samples were taken for observation after one week.

[0025] Example 2 A nighttime repairing moisturizing skin cream is composed of the following ingredients in parts by weight: 10 parts alkyl phosphate, 20 parts alkyl glucoside, 25 parts glyceryl stearate, 25 parts octadecyl mixed alcohol, 5 parts microcrystalline wax, 20 parts isopropyl isostearate, 20 parts isononyl isononanoate, 20 parts dimethyl silicone oil, 20 parts cyclomethyl silicone oil, 20 parts natural squalane, and 30 parts soothing agent; the soothing agent is composed of the following ingredients in parts by weight: 13 parts aloe vera peel, 2 parts allantoin, 7 parts polyethylene glycol distearate, and 2 parts purslane extract.

[0026] Ten groups of people with different skin sensitivities were selected, with three people in each group. Each person applied a nighttime repair moisturizing skin cream once a day, and samples were taken for observation after one week.

[0027] Example 3 A nighttime repairing moisturizing skin cream is composed of the following ingredients in parts by weight: 20 parts alkyl phosphate, 30 parts alkyl glucoside, 50 parts glyceryl stearate, 50 parts octadecyl mixed alcohol, 10 parts microcrystalline wax, 40 parts isopropyl isostearate, 40 parts isononyl isononanoate, 30 parts dimethyl silicone oil, 30 parts cyclomethyl silicone oil, 50 parts natural squalane, and 60 parts soothing agent; the soothing agent is composed of the following ingredients in parts by weight: 15 parts aloe vera peel, 2 parts allantoin, 7 parts polyethylene glycol distearate, and 2 parts purslane extract.

[0028] Ten groups of people with different skin sensitivities were selected, with three people in each group. Each person applied a nighttime repair moisturizing skin cream once a day, and samples were taken for observation after one week.

[0029] As can be seen from Examples 1-3, by adding a soothing agent during the preparation of the nighttime repair water-based skin cream, the irritation of the nighttime repair water-based skin cream can be neutralized, making it gentler to use and reducing irritation to the skin of the user.

[0030] Please see Figures 1-5 This invention provides a method for preparing a nighttime repair moisturizing skin cream, the method comprising the following steps: S1: Now, alkyl phosphate, alkyl glucoside, glyceryl stearate, octadecyl alcohol mixture and microcrystalline wax are placed inside the container for preheating treatment; S2: When the temperature reaches 50°C, add isopropyl isostearate, isononyl isononanoate, dimethyl silicone oil, cyclomethyl silicone oil and natural squalane into the container in sequence, raise the temperature to 70°C, and stir during the heating process at a speed of 800-1500 r / min. Stop stirring after stirring for 50 minutes. S3: Place the solution obtained in S2 into the stirring and cooling device, and add the soothing agent at the same time. Then turn on the cooling tank and set its rotation speed to 800-1500 r / min. When the temperature drops to 30 degrees Celsius, pour it into the storage container to complete the preparation of the nighttime repair moisturizing skin cream.

[0031] In one embodiment of the present invention, the stirring and cooling device for cooling the solution in S2 includes a working box 1; a top cover 11 is installed on the top of the working box 1; a motor 2 is fixedly connected to the inner side wall of the bottom of the working box 1; a stirring and cooling barrel 21 is fixedly connected to the output end of the motor 2; a fixing rod 22 is fixedly connected to the center of the bottom of the top cover 11; a stirring impeller 23 is fixedly connected to the middle of the fixing rod 22; multiple sets of heat-conducting plates 24 are fixedly connected to the side wall of the stirring and cooling barrel 21; when each solution is put into the stirring and cooling barrel 21 inside the working box 1, the motor 2 can be turned on to drive the stirring and cooling barrel 21 to rotate. At this time, the solution inside the stirring and cooling barrel 21 will rotate synchronously, and some of the heat inside the night repair water moisturizing skin cream solution will be conducted to the heat-conducting plate 24 and then dissipated by the heat-conducting plate 24 outside the stirring and cooling barrel 21, thus accelerating the cooling speed of the night repair water moisturizing skin cream solution inside the stirring and cooling barrel 21.

[0032] In one embodiment of the present invention, the middle part of the fixed rod 22 is provided with multiple sets of striking nets 25; multiple sets of striking nets 25 are provided on the fixed rod 22; by providing striking nets 25 at the bottom of the fixed rod 22, the rotating night repair water moisturizing skin cream solution can come into contact with the striking nets 25, breaking up the clumping phenomenon in the night repair water moisturizing skin cream solution, and can also make the night repair water moisturizing skin cream solution inside the stirring and cooling tank 21 more uniformly stirred.

[0033] In one embodiment of the present invention, the heat-conducting plate 24 is provided with multiple sets of heat-conducting rods 3 on the side wall located inside the stirring and cooling barrel 21; the heat-conducting rods 3 are fixedly connected to the heat-conducting plate 24; by providing multiple sets of heat-conducting rods 3 on the heat-conducting plate 24, the heat that can be dissipated by the night repair water moisturizing skin cream solution can be increased, and the cooling speed of the night repair water moisturizing skin cream solution can be further improved.

[0034] In one embodiment of the present invention, a piston chamber 4 is provided inside the heat-conducting rod 3; an iron ball 41 is provided inside the piston chamber 4; a magnet 42 is fixedly connected to the side of the piston chamber 4 away from the heat-conducting plate 24; a piston plate 43 is slidably connected inside the piston chamber 4; a flexible cutter 44 is fixedly connected to the side of the piston plate 43 away from the iron ball 41; when the heat-conducting plate 24 drives the heat-conducting rod 3 to rotate, the iron ball 41 will move away from the magnet 42 due to centrifugal force, and then the flexible cutter 44 will be pushed out from the inside of the heat-conducting rod 3 by the piston plate 43. This can further increase the contact area between the heat-conducting rod 3 and the night repair water moisturizing skin cream solution, and can also cut some of the raw material fibers inside the night repair water moisturizing skin cream solution, so that the night repair water moisturizing skin cream solution is more thoroughly mixed inside the stirring and cooling tank 21.

[0035] In one embodiment of the present invention, the flexible cutter 44 is hinged to an elastic blade 5 on its side wall; multiple sets of elastic blades 5 are provided on the flexible cutter 44, and the blade edge is wavy; a spring connects the elastic blades 5 to the flexible cutter 44; when the flexible cutter 44 extends out of the surface of the heat-conducting rod 3, the elastic blades 5 will be lifted off the flexible cutter 44 under the action of the spring, which can increase the contact area between the flexible cutter 44 and the night repair water moisturizing skin cream solution, and at the same time can cut smaller raw materials, thereby reducing the large pieces of raw materials inside the stirring and cooling tank 21.

[0036] In one embodiment of the present invention, an iron wire 6 is fixedly attached to the arc-shaped blade edge of the elastic blade 5. By providing an iron wire 6 on the elastic blade 5, when the elastic blade 5 comes into contact with the raw material inside the stirring and cooling tank 21, it first impacts the iron wire 6, and some of the lumpy raw material will be cut and broken, and then impact the blade edge of the elastic blade 5. This operation will make the lumpy raw material inside the stirring and cooling tank 21 more evenly stirred.

[0037] In one embodiment of the present invention, multiple sets of air inlets are provided on the bottom side wall of the working box 1; multiple sets of air outlets are provided on the top side wall of the working box 1; turbine blades 7 are fitted on the side wall of the stirring and cooling barrel 21; the turbine blades 7 are fixedly connected to the stirring and cooling barrel 21; by fixing the turbine blades 7 to the side wall of the stirring and cooling barrel 21 inside the working box 1, the air circulation inside the working box 1 can be accelerated, the heat dissipation on the heat conduction plate 24 can be accelerated, and the cooling speed of the night repair water moisturizing skin cream solution inside the stirring and cooling barrel 21 can be greatly accelerated.

[0038] Working principle: When each solution is placed into the stirring and cooling tank 21 inside the working chamber 1, the motor 2 can be turned on to make the stirring and cooling tank 21 rotate. At this time, the solution inside the stirring and cooling tank 21 will rotate synchronously, and some of the heat inside the night repair moisturizing skin cream solution will be conducted to the heat conduction plate 24, and then dissipated by the heat conduction plate 24 on the outside of the stirring and cooling tank 21, accelerating the cooling speed of the night repair moisturizing skin cream solution inside the stirring and cooling tank 21; by providing a striking net 25 at the bottom of the fixed rod 22, the rotating night repair moisturizing skin cream solution can come into contact with the striking net 25, thus cooling part of the night repair moisturizing skin cream solution. The clumping is broken up, and the nighttime repair water-based moisturizing cream solution inside the stirring and cooling tank 21 is stirred more evenly. By providing multiple sets of heat-conducting rods 3 on the heat-conducting plate 24, the heat that can be dissipated from the nighttime repair water-based moisturizing cream solution is increased, further improving the cooling speed of the solution. When the heat-conducting plate 24 drives the heat-conducting rods 3 to rotate, the iron ball 41 will move away from the magnet 42 due to centrifugal force, and then the flexible cutter 44 will be pushed out from inside the heat-conducting rod 3 through the piston plate 43. This further increases the contact area between the heat-conducting rod 3 and the nighttime repair water-based moisturizing cream solution, and also disperses the heat inside the solution. Some of the raw material fibers are cut open, allowing the nighttime repair water-based skin cream solution to mix more thoroughly inside the mixing and cooling tank 21. When the flexible cutter 44 extends beyond the surface of the heat-conducting rod 3, the elastic blade 5 will be lifted off the flexible cutter 44 under the action of a spring, increasing the contact area between the flexible cutter 44 and the nighttime repair water-based skin cream solution. This also allows for the cutting of smaller raw materials, reducing the number of large pieces of raw material inside the mixing and cooling tank 21. An iron wire 6 is fixed to the arc-shaped cutting edge of the elastic blade 5. By providing the iron wire 6 on the elastic blade 5, when the elastic blade 5 comes into contact with the raw materials inside the mixing and cooling tank 21, it first impacts the iron wire 6, causing some of the clumps of raw material to be cut off. The material is broken up and then impacts the blade of the elastic blade 5. This operation makes the lumpy material inside the stirring and cooling barrel 21 more evenly stirred. Multiple air inlets are opened on the bottom side wall of the working box 1. Multiple air outlets are opened on the top side wall of the working box 1. Turbine blades 7 are fitted on the side wall of the stirring and cooling barrel 21. The turbine blades 7 are fixedly connected to the stirring and cooling barrel 21. By fixing the turbine blades 7 to the side wall of the stirring and cooling barrel 21 inside the working box 1, the air circulation inside the working box 1 can be accelerated, the heat dissipation on the heat conduction plate 24 can be accelerated, and the cooling speed of the night repair water moisturizing cream solution inside the stirring and cooling barrel 21 can be greatly accelerated.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A method for preparing a nighttime repairing moisturizing skin cream, characterized in that: The preparation method includes the following steps: S1: Now, alkyl phosphate, alkyl glucoside, glyceryl stearate, octadecyl alcohol mixture and microcrystalline wax are placed inside the container for preheating treatment; S2: When the temperature reaches 50°C, add isopropyl isostearate, isononyl isononanoate, dimethyl silicone oil, cyclomethyl silicone oil and natural squalane into the container in sequence, raise the temperature to 70°C, and stir during the heating process at a speed of 800-1500 r / min. Stop stirring after stirring for 50 minutes. S3: Place the solution obtained in S2 into the stirring and cooling device, and add the soothing agent at the same time. Then turn on the cooling tank and set its rotation speed to 800-1500 r / min. When the temperature drops to 30 degrees Celsius, pour it into the storage container to complete the preparation of the nighttime repair moisturizing skin cream. The amount of each raw material used in the above preparation method is as follows: 10 parts of alkyl phosphate, 20 parts of alkyl glucoside, 25 parts of glyceryl stearate, 25 parts of octadecyl mixed alcohol, 5 parts of microcrystalline wax, 20 parts of isopropyl isostearate, 20 parts of isononyl isononanoate, 20 parts of dimethyl silicone oil, 20 parts of cyclomethyl silicone oil, 20 parts of natural squalane, and 30 parts of soothing agent. The soothing agent is composed of the following raw materials in parts by weight: 13 parts of aloe vera peel, 2 parts of allantoin, 7 parts of polyethylene glycol distearate, and 2 parts of purslane extract. The stirring and cooling device for cooling the solution in S2 includes a working box (1); a top cover (11) is installed on the top of the working box (1); a motor (2) is fixedly connected to the inner side wall of the bottom of the working box (1); a stirring and cooling barrel (21) is fixedly connected to the output end of the motor (2); a fixing rod (22) is fixedly connected to the center of the bottom of the top cover (11); a stirring impeller (23) is fixedly connected to the middle of the fixing rod (22); and multiple sets of heat-conducting plates (24) are fixedly connected to the side wall of the stirring and cooling barrel (21). The fixed rod (22) is provided with multiple sets of striking nets (25) in the middle; the striking nets (25) are provided with multiple sets on the fixed rod (22); Multiple sets of heat-conducting rods (3) are provided on the side wall inside the stirring and cooling barrel (21) on the heat-conducting plate (24); the heat-conducting rods (3) are fixed to the heat-conducting plate (24); The heat-conducting rod (3) has a piston chamber (4) inside; an iron ball (41) is provided inside the piston chamber (4); a magnet (42) is fixedly connected to the side of the piston chamber (4) away from the heat-conducting plate (24); a piston plate (43) is slidably connected inside the piston chamber (4); a flexible cutter (44) is fixedly connected to the side of the piston plate (43) away from the iron ball (41). The flexible cutter (44) has an elastic blade (5) hinged to its side wall; multiple sets of the elastic blade (5) are provided on the flexible cutter (44), and the blade edge is wavy; a spring connects the elastic blade (5) to the flexible cutter (44); The elastic blade (5) has an iron wire (6) fixed to its arc-shaped cutting edge.