EP4706808A1

EP4706808A1 - Spatial distribution reconstruction method for cosmetic material system, and cosmetics prepared thereby

Info

Publication number: EP4706808A1
Application number: EP24930400.7A
Authority: EP
Inventors: Liang Zhao; Sili ZENG
Original assignee: Shanghai Beukay Cosmetics Co Ltd
Current assignee: Shanghai Beukay Cosmetics Co Ltd
Priority date: 2024-03-18
Filing date: 2024-10-09
Publication date: 2026-03-11
Also published as: WO2025194741A1; CN118203980B; KR20260023521A; CN118203980A

Abstract

Disclosed are a method for reconstructing a spatial distribution of a cosmetic material system and use thereof, and the present disclosure relates to the field of cosmetic molding and preparation processes. In the present disclosure, an acoustic resonance apparatus is used to reconstruct the spatial distribution of different materials in a cosmetic material system. The acoustic resonance apparatus generates an acoustic resonance field through variable-acceleration translational motion of a container, and the acoustic resonance field is a periodic variable-acceleration motion with a certain frequency, which may be a periodic change in the magnitude of a velocity, a periodic change in the direction of the velocity, or a periodic change in both the magnitude and direction of the velocity. According to the present disclosure, materials in the container are redistributed in the variable-acceleration translational motion of the container, and the present disclosure is applied to the field of cosmetic preparation. In one aspect, time can be saved in the preparation process of cosmetics, and in another aspect, the structure of the material system can be prevented from being damaged due to excessive shearing easily caused by conventional rotational shearing, resulting in irreversible viscosity loss and even changing the rheological properties of the system.

Description

TECHNICAL FIELD

The present disclosure relates to the field of cosmetic molding and preparation processes, and in particular, to a method for reconstructing a spatial distribution of a cosmetic material system and use thereof.

BACKGROUND

Cosmetic materials are generally composed of different types of low molecular weight polymers, high molecular weight polymers, natural bioactive substances, mineral powders or particles, oils and fats, water, and the like. These substances are generally in different states of matter under certain conditions, such as solid and liquid. The cosmetic processing process requires the combination of diverse substances of different types and states in a certain distribution mode in space to achieve a specific physical performance effect and cosmetic efficacy.
The traditional distribution method of cosmetic materials generally adopts a rotational shearing mode. In this mode, a rotating apparatus, such as a paddle blade, is used to generate a certain shearing effect by means of the difference in the distance between the materials and the center of the rotating apparatus within the container when different materials are added to the container together or successively, thereby converting the materials from a spatial distribution mode of mutual separation to a spatial distribution mode of mutual interlacing and spaced. The traditional distribution method of cosmetic materials also has a distribution method without paddle blades, for example, a variety of materials are added together or successively into a container that rotates by itself, and since the container itself is an optional apparatus, a certain shearing effect can also be generated by means of the difference in the distance between the materials and the container wall to achieve the change in the spatial distribution methods of the materials.
The Chinese Utility Model Patent with Publication No. CN216605085U discloses a cosmetic emulsifying pot, which is a representative device for the processing of a traditional cosmetic material system, and embodies the method for reconstructing the distribution of cosmetic materials by means of rotational shearing. The rotational shearing method is mainly applied to devices such as a stirrer, a homogenizer, a double-center centrifuge, and a device combining a plurality of modes, or a combination thereof. However, the traditional rotational shearing distribution method of cosmetic materials inevitably has distribution differences related to the center of rotation, inherently leading to inconsistencies in the distribution patterns of different material particles. This inconsistency typically requires the intentional introduction of variable factors during rotational shearing, such as multi-center rotation or irregular structures, to generate turbulence for compensation. This compensation process requires a relatively long time, which also results in a relatively high volatilization amount of some easily volatile substances in the cosmetic material system, such that the quality of the final finished cosmetic product is not easily controlled.

SUMMARY

In order to solve the defects in the prior art, the present disclosure introduces a brand new cosmetic material distribution method independent of a rotating apparatus, which redistributes the materials in a container by means of variable-acceleration translational motion of the container. This method can achieve the reconstruction of the spatial distribution of the cosmetic material system for the reconstruction of the spatial distribution state among the materials by relying only on the differences in the properties of different materials, such as the differences in density, viscosity, morphology, and particle size, without depending on the irregular structure inside the apparatus.
The first objective of the present disclosure is achieved by the following technical solutions: Provided is a method for reconstructing a spatial distribution of a cosmetic material system. The method includes the following steps:

S1, adding a cosmetic material system to a distribution reconstruction apparatus;
S2, adjusting one or more parameters of an air pressure, a resonance intensity, a resonance frequency, and an operation time of the distribution reconstruction apparatus to perform distribution reconstruction on the cosmetic material system; and
S3, re-arranging, by a container of the reconstruction apparatus, a spatial distribution of different cosmetic materials in a periodic variable-acceleration motion, the variable-acceleration translational motion including any one or two of a change in magnitude of a velocity and a change in a direction of the velocity.

Further, in the S3, the container of the distribution reconstruction apparatus re-arranges the spatial distribution of different cosmetic materials in the periodic variable-acceleration translational motion.
Further, the cosmetic material system is one or a combination of two or more of a liquid state, a solid state, a semi-solid state, and a supercritical state, where the liquid state includes a Newtonian fluid and a non-Newtonian fluid.
Further, in the S2, after the resonance frequency is calibrated according to an input cosmetic material system type, process parameters are stored, and then the resonance intensity is increased, where the calibration of the resonance frequency is achieved by monitoring a resonance acceleration.
Further, when the cosmetic material system is a semi-solid cosmetic system, a next step is confirmed by determining a state of the material in the distribution reconstruction apparatus each time the resonance frequency is calibrated: if a surface of the material is flat, an operation is directly performed for a set time using the stored process parameters; if the surface of the material is still rough, the operation is performed for 2-5 minutes using the stored process parameters first, the resonance frequency is then re-calibrated, and the state of the material in the distribution reconstruction apparatus is determined until the surface of the material is flat; the operation is performed for the set time using the stored process parameters until the end.
Further, when the cosmetic material system is a semi-solid cosmetic system or a solid cosmetic system, the step of calibrating the resonance frequency is as follows: first, the resonance intensity is set to be 5-10%, and the resonance frequency is increased in units of an original increase value X Hz from 0, and maintained for 3-8 seconds after each increase; whether the resonance acceleration increases in the process is determined by an acceleration sensor, if the resonance acceleration increases, the resonance frequency is continuously increased by X Hz, and if the resonance acceleration decreases in the process, a next step is to revert to a previous resonance frequency level, and the resonance frequency is increased again in units of X/2 Hz; if the resonance acceleration increases, the resonance frequency is continuously increased with a reduced increment of X/2n Hz, and if the resonance acceleration decreases, a next step is to revert to the previous resonance frequency level, and the resonance frequency is increased again in units of X/2n Hz; and the process continues iteratively, where n = (1, 2, 3...), until the resonance frequency is precise to within 0.1 Hz, and the original increase value satisfies 5 < X < 20.
Further, the semi-solid cosmetic includes creams, lotions, emulsions, mud masks, and gels. Further, when the cosmetic material system is a solid cosmetic system, the step of calibrating the resonance frequency is as follows: the distribution reconstruction apparatus is immediately sealed and vacuumized after the cosmetic material system is filled into the apparatus, and then a vacuum valve is closed; first, the resonance intensity is set to be 5-10%, and the resonance frequency is increased in units of an original increase value X Hz from 0, and maintained for 3-8 seconds after each increase; whether the resonance acceleration increases in the process is determined by an acceleration sensor, if the resonance acceleration increases, the resonance frequency is continuously increased by X Hz, and if the resonance acceleration decreases in the process, a next step is to revert to a previous resonance frequency level, and the resonance frequency is increased again in units of X/2 Hz; if the resonance acceleration increases, the resonance frequency is continuously increased with a reduced increment of X/2n Hz, and if the resonance acceleration decreases, a next step is to revert to the previous resonance frequency level, and the resonance frequency is increased again in units of X/2n Hz; and the process continues iteratively, where n = (1, 2, 3...), until the resonance frequency is precise to within 0.1 Hz, and the original increase value satisfies 3 < X < 10.
Further, the solid cosmetic system is composed of a solid powdered substance in the presence of a trace amount of liquid.
Further, a step of adjusting the resonance intensity is as follows: the resonance intensity is increased in increments of 5%, and maintained for 10 seconds after each increase; if an acceleration increase is greater than 5, the resonance intensity is continuously increased, and if the acceleration increase is less than 5, a next step is to revert to a previous resonance intensity level, and then the resonance intensity is increased again in increments of 4%; and the process continues iteratively until an acceleration adjustment value is precise to within 1, and in this case, the resonance intensity is no longer increased, and current process parameters are stored.
Further, an operation is performed for 5 minutes directly according to a set time using the stored process parameters, and then the resonance intensity is re-adjusted according to the above adjustment method through multi-stage settings; the operation is performed for another 5 minutes under newly determined resonance conditions, with the number of stages being 2-4; and the operation is performed according to the set stages until the end.
The second objective of the present disclosure is to provide a cosmetic prepared by the method for reconstructing a spatial distribution of a cosmetic material system as described above.
The cosmetic includes one or more of gel, cream, foundation, eye shadow, and blusher.
In summary, compared with the prior art, the present disclosure has the following beneficial effects:

(1) According to the present disclosure, materials in the container are redistributed in the variable-acceleration translational motion of the container, and the present disclosure is applied to the field of cosmetic preparation. In one aspect, time can be saved in the preparation process of cosmetics, and in another aspect, the structure of the material system can be prevented from being damaged due to excessive shearing easily caused by conventional rotational shearing, resulting in irreversible viscosity loss and even changing the rheological properties of the system;
(2) In the preparation method of the present disclosure, the temperature, the air pressure, the resonance intensity, and the resonance frequency of the distribution reconstruction apparatus are adjusted according to the states of different cosmetic materials. The steps of optimizing and adjusting the resonance frequency and the resonance intensity are performed, such that the adjustment time is greatly shortened and the precision is greatly improved, and the cosmetic materials can achieve a better distribution effect in a short time by optimizing and adjusting the resonance parameters, such that the volatilization of the materials can be reduced and the defects of dryness and uneven coloring of the final product are avoided;
(3) The product prepared by the method of the present disclosure significantly reduces the risk of cosmetic contamination, as it enables one-time feeding and employs non-contact mixing throughout the process;
(4) The product prepared by the method of the present disclosure exhibits superior uniformity and finer textural appeal in makeup effects, owing to the holistic redistribution of materials within the container, which ensures nearly identical distribution effects across all points; and
(5) The method of the present disclosure prepares the product, and ensures a more stable production process and consistently high material states throughout the space, resulting in reduced variability in viscosity or rheological parameters between processing batches.

DETAILED DESCRIPTION

The following examples will help those skilled in the art to further understand the present disclosure, but do not limit the present disclosure in any way. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit of the present disclosure, and these changes and modifications are all within the scope of the present disclosure. The endpoints of the ranges and any values disclosed herein are not limited to the precise ranges or values, and these ranges or values should be understood to encompass values close to these ranges or values. For numerical ranges, the endpoint values of each range, the endpoint values of each range and individual point values, as well as individual point values, can be combined with each other to obtain one or more new numerical ranges, which should be construed as being specifically disclosed herein. The present disclosure is described in detail below with reference to specific examples:
The material types of cosmetics mainly include a cosmetic system composed of liquid substances, a high-temperature liquid cosmetic system composed of waxes and other solid substances and liquid substances, a powder cosmetic system composed of solid powdered substances in the presence of trace amounts of liquids, and a semi-solid cosmetic system composed of solid and liquid substances, such as creams, lotions, emulsions, mud masks, and gels.
When the distribution reconstruction apparatus is added with the cosmetic system composed of liquid substances to adjust the resonance frequency and the resonance intensity, the materials are filled into the apparatus, and the resonance intensity is set to 20%; the device performs an automatic frequency sweep starting from 0 Hz, and the scanning time is optimally set to 0.5-10 minutes; once the frequency variation displayed by the device decreases to below 1 Hz, the resonance frequency is recorded, and the scanning mode is turned off. Then, the resonance intensity is increased in increments of 5% based on the recorded resonance frequency, and maintained for 10 seconds after each increase; if the acceleration increase is greater than 5, the resonance intensity is continuously increased until the acceleration increase is less than 5; in this case, the resonance intensity is no longer increased, the current process parameters are stored, and then the operation is directly performed for the set time using the process parameters until the end.
When the distribution reconstruction apparatus is added with the high-temperature liquid cosmetic system composed of waxes and other solid substances and liquid substances to adjust the resonance frequency and the resonance intensity, the apparatus is preheated to a set temperature, then the materials are filled into the apparatus, and the apparatus is left to stand at a constant temperature until the materials are fully heated. Then, the resonance intensity is set to 5%, the device performs an automatic frequency sweep starting from 0 Hz, and the scanning time is optimally set to 0.5-10 minutes. Once the frequency variation displayed by the device decreases to below 1 Hz, the resonance frequency is recorded, and the scanning mode is turned off. Then, the resonance intensity is increased in increments of 5% based on the recorded resonance frequency, and maintained for 10 seconds after each increase; if an acceleration increase is greater than 5, the resonance intensity is continuously increased, and if the acceleration increase is less than 5, the next step is to revert to the previous resonance intensity level, and then the resonance intensity is increased again in increments of 4%; and the process continues iteratively until an acceleration adjustment value is precise to within 1, and in this case, the resonance intensity is no longer increased. The current process parameters are stored, and then the operation is directly performed for the set time using the process parameters until the end.
For a semi-solid cosmetic system composed of solid and liquid substances, such as creams, lotions, emulsions, mud masks, and gels, the adjustment method is as follows: the materials are filled into the apparatus, the resonance intensity is set to 5-10%, the resonance frequency is increased in units of 10 Hz from 0 according to the dichotomy, and maintained for 5 seconds after each increase; if the resonance acceleration increases in the process, the resonance frequency is continuously increased by 10 Hz, and if the resonance acceleration decreases in the process, the next step is to revert to a previous resonance frequency level, and the resonance frequency is increased again in units of 5 Hz; and if the acceleration increases, the resonance frequency is continuously increased with a reduced increment of 2.5 Hz, and if the acceleration decreases, the next step is to revert to the previous resonance frequency level, and the resonance frequency is increased again by 2.5 Hz. The process continues iteratively until the resonance frequency is precise to within 0.1 Hz. When halving the previous increment, if the result is a non-displayable decimal, the final digit should be rounded down. The current process parameters are stored, and the operation is halted to observe the state of the material within the container. If the surface of the material is flat, the container is re-closed, and the operation is directly performed for the set time using the stored process parameters. If the surface of the material is still rough, the operation is performed for 5 minutes using the stored process parameters first, and then the container is opened to check the surface of the material until it is flat. The resonance intensity is increased in increments of 5%, and maintained for 10 seconds after each increase. If the acceleration increase is greater than 5, the resonance intensity is continuously increased; if the acceleration increase is less than 5, the next step is to revert to the previous resonance intensity level and the resonance intensity is increased in increments of 4%. The process continues iteratively until the acceleration adjustment value is precise to within 1, and in this case, the resonance intensity is no longer increased, and the current process parameters are stored; the operation is performed for 5 minutes directly according to the set time using the stored process parameters, and then the resonance intensity is re-adjusted according to the above adjustment method through multi-stage settings; the operation is performed for another 5 minutes under newly determined resonance conditions, with the number of stages being 2-4; and the operation is performed according to the set stages until the end.
For a powder cosmetic system composed of solid powdered substances in the presence of trace amounts of liquids, such as a powder-based material cosmetic for powders and powder blocks, the apparatus is preheated to a set temperature, the apparatus is immediately sealed and vacuumized after the materials are filled into the apparatus, and then a vacuum valve is closed. Then, the resonance intensity is set to 5%, the resonance frequency is increased in units of 5 Hz from 0, and maintained for 5 seconds after each increase. If the resonance acceleration increases in the process, the resonance frequency is continuously increased by 5 Hz, and if the resonance acceleration decreases in the process, the next step is to revert to the previous resonance frequency level, and the resonance frequency is increased again with a reduced increment of 2.5 Hz. Once the increment is adjusted to 2.5 Hz, the adjustment is continued according to the dichotomy. If increasing the resonance frequency by 2.5 Hz results in higher acceleration, the increase is continued by 2.5 Hz, and if increasing the resonance frequency by 2.5 Hz causes the acceleration to decrease, the next step is to revert to the previous resonance frequency level, and the resonance frequency is increased by 1.2 Hz. When halving the previous increment, if the result is a non-displayable decimal, the final digit should be rounded down. The process continues iteratively until the resonance frequency is precise to within 0.1 Hz. The resonance intensity is increased in increments of 5%, and maintained for 10 seconds after each increase. If the acceleration increase is greater than 5, the resonance intensity is continuously increased; if the acceleration increase is less than 5, the next step is to revert to the previous resonance intensity level and the resonance intensity is increased in increments of 4%. The process continues iteratively until the acceleration adjustment value is precise to within 1, and in this case, the resonance intensity is no longer increased, and the current process parameters are stored; the operation is performed for 5 minutes directly according to the set time using the stored process parameters, and then the resonance intensity is re-adjusted according to the above adjustment method through multi-stage settings; the operation is performed for another 5 minutes under newly determined resonance conditions, with the number of stages being 2-4; and the operation is performed according to the set stages until the end.

Example 1

The material spatial distribution of an essence product was reconstructed using an acoustic resonance apparatus. A total of 200 g of essence product material was randomly placed in a cylindrical stainless steel container of an HAM500 apparatus. After the resonance container was covered and sealed, the atmospheric atmosphere was set to a vacuum level of 0.1 atm, an air valve was then closed, and the temperature was room temperature, namely, 25 °C. The resonance intensity was set to 20%, the device performed an automatic frequency sweep starting from 0 Hz, and the scanning time was optimally set to 5 minutes. Once the frequency variation displayed by the device decreased to below 1 Hz, the resonance frequency was recorded as 50.1 Hz. The resonance intensity was increased in increments of 5%, and maintained for 10 seconds after each increase. If the acceleration increase was greater than 5, the resonance intensity was continuously increased until the acceleration increase was less than 5, and in this case, the resonance intensity was no longer increased. The resonance intensity was set to 25%, resulting in a resonance acceleration of 80 g, and the resonance time was set to 5 minutes. After the resonance process was completed, an essence material system with a uniform spatial distribution of all materials was obtained.

Example 2

The material spatial distribution of an eyeliner product was reconstructed using an acoustic resonance apparatus. A total of 200 g of eyeliner product material was randomly placed in a cylindrical stainless steel container of an HAM500 apparatus. After the resonance container was covered and sealed, the atmospheric atmosphere was set to a vacuum level of 0.1 atm, an air valve was then closed, and the apparatus was preheated to a set temperature of 85 °C. The resonance intensity was set to 5%, the device performed an automatic frequency sweep starting from 0 Hz, and the scanning time was optimally set to 5 minutes. Once the frequency variation displayed by the device decreased to below 1 Hz, the resonance frequency was recorded as 50.9 Hz. The resonance intensity was increased in increments of 5%, and maintained for 10 seconds after each increase. If the acceleration increase was greater than 5, the resonance intensity was continuously increased until the acceleration increase was less than 5, and in this case, the resonance intensity was no longer increased. The resonance intensity was set to 25%, resulting in a resonance acceleration of 60 g, and the resonance time was set to 5 minutes. After the resonance process was completed, an eyeliner material system with a uniform spatial distribution of all materials was obtained.

Example 3

The material spatial distribution of a loose powder product was reconstructed using an acoustic resonance apparatus. A total of 200 g of loose powder product material was randomly placed in a jacketed stainless steel container of an HAM500 apparatus. After the resonance container was covered and sealed, the atmospheric atmosphere was set to a vacuum level of 0.1 atm, an air valve was then closed, and the temperature was set to 85 °C. Then, the resonance intensity was set to 5%, the resonance frequency was increased in units of 5 Hz from 0, and maintained for 5 seconds after each increase. If the resonance acceleration increased in the process, the resonance frequency was continuously increased by 5 Hz, and if the resonance acceleration decreased in the process, the next step was to revert to the previous resonance frequency level, and the resonance frequency was increased again with a reduced increment of 2.5 Hz. Once the increment was adjusted to 2.5 Hz, the adjustment was continued according to the dichotomy. If increasing the resonance frequency by 2.5 Hz resulted in higher acceleration, the increase was continued by 2.5 Hz, and if increasing the resonance frequency by 2.5 Hz caused the acceleration to decrease, the next step was to revert to the previous resonance frequency level, and the resonance frequency was increased by 1.2 Hz. When halving the previous increment, if the result was a non-displayable decimal, the final digit should be rounded down. The process continued iteratively until the resonance frequency was precise to within 0.1 Hz. The resonance frequency was determined and set to 50.7 Hz, and then the resonance intensity was increased in increments of 5%, and maintained for 10 seconds after each increase. If the acceleration increase was greater than 5, the resonance intensity was continuously increased, and if the acceleration increase was less than 5, the next step was to revert to the previous resonance intensity level, and then the resonance intensity was increased in increments of 4%. The process continued iteratively until an acceleration adjustment value was precise to within 1, and in this case, the resonance intensity was no longer increased. The current process parameters were stored. After vacuumizing, the vacuum valve was closed. The operation was performed for 5 minutes directly for the set time using the stored process parameters, and then the resonance intensity was re-adjusted according to the above adjustment method and the operation was performed for another 5 minutes under newly determined resonance conditions. The operation was performed based on the configured multi-stage parameters according to the set stages until the end, with the number of stages being 2-4. The resonance intensity was set to 28%, resulting in a resonance acceleration of 80 g, and the resonance time was set to 5 minutes. After the resonance process was completed, a loose powder material system with a uniform spatial distribution of all materials was obtained.

Example 4

The material spatial distribution of a lipstick product was reconstructed using an acoustic resonance apparatus. A total of 30 g of lipstick product material was randomly placed in a stainless steel container at the bottom of the hemispherical shape of an HAM100 apparatus. After the resonance container was covered and sealed, the atmospheric atmosphere was set to a vacuum level of 0.1 atm, an air valve was then closed, and the temperature was set to 65 °C. The resonance intensity was set to 5%, the resonance frequency was increased in units of 10 Hz from 0 according to the dichotomy, and maintained for 5 seconds after each increase. If the resonance acceleration increased in the process, the resonance frequency was continuously increased by 10 Hz, and if the resonance acceleration decreased in the process, the next step was to revert to the previous resonance frequency level, and the resonance frequency was increased again in units of 5 Hz; and if the acceleration increased, the resonance frequency was continuously increased with a reduced increment of 2.5 Hz, and if the acceleration decreased, the next step was to revert to the previous resonance frequency level, and the resonance frequency was increased again by 2.5 Hz. The process continued iteratively until the resonance frequency was precise to within 0.1 Hz. When halving the previous increment, if the result was a non-displayable decimal, the final digit should be rounded down. The operation was halted to observe the state of the material within the container. If the surface of the material was flat, the container was re-closed, and the operation was directly performed for the set time using the stored process parameters, and if the surface of the material was still rough, the operation was performed for 5 minutes using the stored process parameters first, and then the container was opened to check the surface of the material until it was flat. The resonance frequency was recorded and set to 60.6 Hz. Then, the resonance intensity was increased in increments of 5%, and maintained for 10 seconds after each increase. If the acceleration increase was greater than 5, the resonance intensity was continuously increased until the acceleration increase was less than 5, and in this case, the resonance intensity was no longer increased. The current process parameters were stored. After vacuumizing, the vacuum valve was closed. The operation was performed for 5 minutes directly for the set time using the stored process parameters, and then the resonance intensity was re-adjusted according to the above adjustment method and the operation was performed for another 5 minutes under newly determined resonance conditions. The operation was performed based on the configured multi-stage parameters according to the set stages until the end, with the number of stages being 2-4. The resonance intensity was set to 20%, resulting in a resonance acceleration of 70 g, and the resonance time was set to 10 minutes. After the resonance process was completed, a lipstick material system with a uniform spatial distribution of all materials was obtained.

Comparative Example 1-1

The material spatial distribution of an essence product was reconstructed using an acoustic resonance apparatus. A total of 200 g of essence product material was randomly placed in a cylindrical stainless steel container of an HAM500 apparatus. After the resonance container was covered and sealed, the atmospheric atmosphere was set to a vacuum level of 1 atm, an air valve was then closed, and the temperature was room temperature, namely, 25 °C. The resonance frequency was set to 50.1 Hz, and the resonance intensity was set to 25%, resulting in a resonance acceleration of 25-40 g. The resonance time was set to 5 minutes. After the resonance process was completed, an essence material system with a uniform spatial distribution of all materials was obtained, and obvious acceleration fluctuations were observed during the resonance process.

Comparative Example 3-1

The material spatial distribution of a loose powder product was reconstructed using an acoustic resonance apparatus. A total of 200 g of loose powder product material was randomly placed in a jacketed stainless steel container of an HAM500 apparatus. After the resonance container was covered and sealed, the atmospheric atmosphere was set to a vacuum level of 0.1 atm, an air valve was then closed, and the temperature was set to 90 °C. The resonance frequency was set to 50.7 Hz, and the resonance intensity was set to 30%, resulting in a resonance acceleration of 40 g. The resonance time was set to 5 minutes. After the resonance process was completed, a loose powder material system with uniform spatial distribution could not be obtained.

Comparative Example 3-2

The material spatial distribution of a loose powder product was reconstructed using a conventional rotary stirring device. A total of 200 g of loose powder product material was randomly placed in a container. After the container was covered and sealed, the atmospheric atmosphere was set to a vacuum level of 0.1 atm, the temperature was set to 65 °C, and the time was set to 5 minutes. After the stirring process was completed, a loose powder material system with uniform spatial distribution could not be obtained.

Comparative Example 3-3

The material spatial distribution of a loose powder product was reconstructed using an acoustic resonance apparatus. A total of 200 g of loose powder product material was randomly placed in a jacketed stainless steel container of an HAM500 apparatus. The temperature of the resonance container was set to 65 °C, the atmospheric atmosphere was set to 1 atm, and the resonance frequency was set to 50.7 Hz. The resonance intensity was set to 28%, resulting in a resonance acceleration of 80 g, and the resonance time was set to 5 minutes. After the resonance process was completed, a loose powder material system with a uniform spatial distribution of all materials was obtained.

Comparative Example 4-1

The material spatial distribution of a lipstick product was reconstructed using an acoustic resonance apparatus. A total of 30 g of lipstick product material was randomly placed in a stainless steel container at the bottom of the hemispherical shape of an HAM100 apparatus. After the resonance container was covered and sealed, the atmospheric atmosphere was set to a vacuum level of 0.1 atm, an air valve was then closed, and the temperature was set to 65 °C. The resonance frequency was set to 60.6 Hz, and the resonance intensity was set to 20%, resulting in a resonance acceleration of 70 g, and the resonance time was set to 5 minutes. After the resonance process was completed, a lipstick material system with a uniform spatial distribution of all materials was obtained.

Table 1. Performance table for products in Examples 1-4 and Comparative Examples

Case	Variation condition 1 Vacuum level	Variation condition 2 Temperature	Variation condition 3 Frequency	Variation condition 4 Intensity	Variation condition 5 Time	Resulting acceleration	Effect of reconstruction of material system distribution
Example 1	0.1 atm	25 °C	50.1 hz	25%	5 min	80 g	Uniform
Comparative Example 1-1	1 atm	25 °C	50.1 hz	25%	5 min	25-40 g (with fluctuation)	More uniform
Example 2	0.1 atm	85 °C	50.9 hz	25%	5 min	60 g	Uniform
Example 3	0.1 atm	65 °C	50.7 hz	28%	5 min	80 g	Uniform
Comparative Example 3-1	0.1 atm	90 °C	50.7 hz	30%	5 min	40 g	Non-uniform, spherical
Comparative Example 3-2	0.1 atm	65 °C	NA	NA	5 min	NA	Non-uniform
Comparative Example 3-3	1 atm	65 °C	50.7 hz	28%	5 min	80 g	More uniform
Example 4	0.1 atm	65 °C	60.6 hz	20%	10 min	70 g	Uniform
Comparative Example 4-1	0.1 atm	65 °C	60.6 hz	20%	5 min	70 g	Uniform

The specific embodiments of the present disclosure have been described above. It should be understood that the present disclosure is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present disclosure. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

A method for reconstructing a spatial distribution of a cosmetic material system, comprising the following steps:
S1, adding a cosmetic material system to a distribution reconstruction apparatus;

S2, adjusting one or more parameters of an air pressure, a resonance intensity, a resonance frequency, and an operation time of the distribution reconstruction apparatus to perform distribution reconstruction on the cosmetic material system; and

S3, re-arranging, by a container of the distribution reconstruction apparatus, a spatial distribution of different cosmetic materials in a periodic variable-acceleration motion, the variable-acceleration translational motion comprising any one or two of a change in magnitude of a velocity and a change in a direction of the velocity.
The method according to claim 1, wherein the cosmetic material system is one or a combination of two or more of a liquid state, a solid state, a semi-solid state, and a supercritical state, wherein the liquid state comprises a Newtonian fluid and a non-Newtonian fluid.
The method according to claim 1, wherein
in the S2, after the resonance frequency is calibrated according to an input cosmetic material system type, process parameters are stored, and then the resonance intensity is increased, wherein the calibration of the resonance frequency is achieved by monitoring a resonance acceleration.
The method according to claim 3, wherein when the cosmetic material system is a semi-solid cosmetic system, a next step is confirmed by determining a state of the material in the distribution reconstruction apparatus each time the resonance frequency is calibrated: if a surface of the material is flat, the stored process parameters are used and the resonance intensity is increased, and an operation is directly performed for a set time; if the surface of the material is still rough, the operation is performed for 2-5 minutes using the stored process parameters first, the resonance frequency is then re-calibrated, and the state of the material in the distribution reconstruction apparatus is determined until the surface of the material is flat; the stored process parameters are used and the resonance intensity is increased, and the operation is performed for the set time until the end.
The method according to claim 3 or 4, wherein when the cosmetic material system is a semi-solid cosmetic system or a solid cosmetic system, the step of calibrating the resonance frequency is as follows: first, the resonance intensity is set to be 5-10%, and the resonance frequency is increased in units of an original increase value X Hz from 0, and maintained for 3-8 seconds after each increase; whether the resonance acceleration increases in the process is determined by an acceleration sensor, if the resonance acceleration increases, the resonance frequency is continuously increased by X Hz, and if the resonance acceleration decreases in the process, a next step is to revert to a previous resonance frequency level, and the resonance frequency is increased again in units of X/2 Hz; if the resonance acceleration increases, the resonance frequency is continuously increased with a reduced increment of X/2n Hz, and if the resonance acceleration decreases, a next step is to revert to the previous resonance frequency level, and the resonance frequency is increased again in units of X/2n Hz; and the process continues iteratively, wherein n = (1, 2, 3...), until the resonance frequency is precise to within 0.1 Hz, and the original increase value satisfies 5 < X < 20.
The method according to claim 4, wherein the semi-solid cosmetic comprises creams, lotions, emulsions, mud masks, and gels.
The method according to claim 3, wherein when the cosmetic material system is a solid cosmetic system, the step of calibrating the resonance frequency is as follows: the distribution reconstruction apparatus is immediately sealed and vacuumized after the cosmetic material system is filled into the apparatus, and then a vacuum valve is closed; first, the resonance intensity is set to be 5-10%, and the resonance frequency is increased in units of an original increase value X Hz from 0, and maintained for 3-8 seconds after each increase; whether the resonance acceleration increases in the process is determined by an acceleration sensor, if the resonance acceleration increases, the resonance frequency is continuously increased by X Hz, and if the resonance acceleration decreases in the process, a next step is to revert to a previous resonance frequency level, and the resonance frequency is increased again in units of X/2 Hz; if the resonance acceleration increases, the resonance frequency is continuously increased with a reduced increment of X/2n Hz, and if the resonance acceleration decreases, a next step is to revert to the previous resonance frequency level, and the resonance frequency is increased again in units of X/2n Hz; and the process continues iteratively, wherein n = (1, 2, 3...), until the resonance frequency is precise to within 0.1 Hz, and the original increase value satisfies 3 < X < 10.
The method according to claim 7, wherein the solid cosmetic system is composed of a solid powdered substance in the presence of a trace amount of liquid.
The method according to claim 3, wherein a step of adjusting the resonance intensity is as follows: the resonance intensity is increased in increments of 5%, and maintained for 10 seconds after each increase; if an acceleration increase is greater than 5, the resonance intensity is continuously increased, and if the acceleration increase is less than 5, a next step is to revert to a previous resonance intensity level, and then the resonance intensity is increased again in increments of 4%; and the process continues iteratively until an acceleration adjustment value is precise to within 1%, and in this case, the resonance intensity is no longer increased, and current process parameters are stored.
The method according to claim 9, wherein the step of adjusting the resonance intensity further comprises: directly performing an operation for 5 minutes according to a set time using the stored process parameters, and then re-adjusting the resonance intensity through multi-stage settings according to the above adjustment method; performing the operation for another 5 minutes under newly determined resonance conditions, with the number of stages being 2-4; and performing the operation according to the set stages until the end.
The method according to claim 1, wherein in the S3, the container of the distribution reconstruction apparatus re-arranges the spatial distribution of different cosmetic materials in the periodic variable-acceleration translational motion.
A cosmetic prepared by the method for reconstructing a spatial distribution of a cosmetic material system according to any one of claims 1-11.