Powder puff processing method adopting low-temperature freezing technology

Abstract

The invention discloses a powder puff processing method adopting a low-temperature freezing technology. The powder puff processing method comprises the following steps: S01, a washing stage: fully washing a foam body obtained by a foaming process with water; s02, a dehydration stage: dehydrating the foam body which is fully washed and drenched; s03, a freezing stage: performing low-temperature freezing treatment on the dehydrated foam body; s04, a processing stage: performing fine processing on the hardened foam body to obtain a powder puff blank; s05, a secondary washing stage: carrying out secondary washing on the formed powder puff blank; s06, a secondary dehydration stage: carrying out secondary dehydration on the powder puff blank subjected to secondary water washing; s07, a drying stage, wherein the powder puff blank is subjected to drying treatment; obtaining a powder puff finished product. Water in the powder puff is frozen into ice in a low-temperature freezing mode, and in the frozen state, the powder puff material becomes easier to treat and fix, so that the powder puff material can be processed into a designed shape, and the requirement of the market for powder puff shape diversification is met.

Description

Technical Field

[0001] The invention belongs to the technical field of XXXX and relates to a powder puff processing method adopting low-temperature freezing technology. Background Art

[0002] In the field of cosmetic applications, powder puffs are basic makeup tools, and their design and manufacturing quality directly affect the uniformity and effect of makeup. Powder puffs are usually made of porous materials, such as sponges, which have good ability to absorb and release cosmetics. As consumers' demand for personalized and professional makeup tools increases, the market has put forward higher requirements for the shape and texture of powder puffs;

[0003] However, the current powder puff processing on the market mainly relies on grinding wheel technology, which is powerless when dealing with complex shapes. The characteristics of the powder puff material itself - soft and easy to deform, make it difficult to fix and maintain its shape during processing, resulting in the inability to process complex or asymmetric shapes. In addition, grinding wheel grinding not only has low processing efficiency, but also serious material waste and high processing costs, especially for complex shapes that require fine processing. The processing time cost is about four to five times that of conventional processing time. These limitations limit the shape selection of powder puff products and make it difficult to meet the diverse needs of the market;

[0004] To this end, this scheme proposes a new powder puff processing and preparation method, which can overcome the limitations of grinding wheel grinding technology, realize the diversification and precise processing of powder puff shapes, reduce the manufacturing difficulty, reduce material waste, and improve production efficiency, and can meet the market's diverse demands for powder puff shapes and quality. Summary of the invention

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A powder puff processing method using low-temperature freezing technology, comprising the following process steps:

[0007] S01. Washing stage: The foam obtained by the foaming process is fully washed with water; this step is mainly to make the foam fully wet and remove the chemical substances and impurities remaining during the foaming process of the foam;

[0008] S02. Dehydration stage: Dehydrating the foam after being fully washed and soaked; this step is mainly to remove excess water inside the foam and reduce the water content of the foam;

[0009] S03. Freezing stage: The dehydrated foam is subjected to low-temperature freezing treatment, and the foam is completely hardened by freezing the water in the foam. This step is mainly to increase the hardness of the foam to ensure the stability and shape of the powder puff during the processing;

[0010] S04. Processing stage: finely process the hardened foam body, cut the hardened foam body into the required shape according to the design requirements, and obtain the powder puff blank;

[0011] S05. Secondary washing stage: The formed puff blank is subjected to secondary washing, which is mainly to remove residual waste and debris on the processed surface to ensure the cleanliness of the puff surface;

[0012] S06. Secondary dehydration stage: The powder puff blank after the second water washing is dehydrated by a dehydrator. This step is mainly to remove excess water inside the powder puff blank to prevent the powder puff from absorbing moisture and softening, which affects the quality of the final product.

[0013] S07. Drying stage: Drying the completely dehydrated powder puff blank; this step is mainly to remove the residual moisture in the powder puff, ensure that the final moisture content of the powder puff reaches the standard for storage and use, and obtain the finished powder puff.

[0014] As a further solution of the present invention: in step S01. the water washing stage, a water washing machine with a tumbling function is used to ensure that every part of the foam body can fully contact with water, so as to ensure that the foam body can be completely hardened in the subsequent freezing stage.

[0015] As a further solution of the present invention: in step S03. the freezing stage, the freezing temperature of the foam body needs to be maintained below 0°C, and the low-temperature freezing time is 2 to 4 hours; ensuring that the foam body can be completely hardened.

[0016] As a further solution of the present invention: in step S03. the freezing stage, the freezing temperature is -5°C to -15°C, and the humidity of the freezing environment is controlled at 40% to 60%, and no ice crystals can be formed on the surface of the bubble during the freezing process, the wind speed of the freezing environment is 0.5 to 1.5 m / s, and the air pressure is maintained at 900 to 950 hPa.

[0017] As a further solution of the present invention: in step S04. the processing stage, the fine cutting processing of the bubble body needs to be carried out in a low-temperature processing environment below 0°C to ensure that the moisture in the bubble body will not dissolve before the processing is completed, causing the bubble body to soften.

[0018] As a further solution of the present invention: in step S04. the processing stage, the low-temperature processing environment is maintained at -10°C to -5°C, the cutting processing equipment needs to be equipped with a precise temperature control function, the temperature control accuracy is ±0.5°C, the tool material used in the processing is cemented carbide, and the tool rotation speed is 1000 to 3000rpm / min.

[0019] Beneficial effects of the present invention: The present invention utilizes the water absorption of the powder puff material through low-temperature freezing to freeze the water in the powder puff into ice. In the frozen state, the powder puff material becomes easier to handle and fix, reducing the risk of deformation and damage during processing, so that it can be processed into a designed shape in a low-temperature environment, breaking the limitations of traditional grinding wheel grinding processing on the shape of the powder puff, allowing the manufacture of more complex and sophisticated powder puff shapes, and meeting the market demand for diversified powder puff shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. It should be understood that the present application is not limited to the example embodiments disclosed herein. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The present invention provides Figure 1 In an embodiment of the present invention, a powder puff processing method using low-temperature freezing technology includes the following process steps:

[0026] S01. Washing stage: The foam obtained by the physical or chemical foaming process is fully washed with water by a washing machine; the washing time is 10 to 20 minutes, the water pressure range of the washing machine is 0.2 to 0.5 MPa, the water temperature is controlled at 25°C to 35°C, the mechanical stirring speed during the washing process is 50 to 150 rpm / min, the pH value of the washing liquid is controlled at 6.5 to 7.5, and the concentration of the surfactant added during the washing process is 0.1 to 0.5%; the main purpose of this step is to make the foam fully wet, prepare for the subsequent freezing stage, and remove the residual chemicals and impurities during the foaming process of the foam to achieve the effect of initial washing;

[0027] S02. Dehydration stage: the foam body after being fully washed and soaked is dehydrated by a dehydrator; the dehydration time is 3 to 5 minutes, the speed range of the dehydrator is 500 to 1500 rpm / min, the water content of the foam body after dehydration is controlled at 50-70%, the working pressure of the dehydrator is 0.05 to 0.1 MPa, the vacuum degree during the dehydration process is 0.9 to 0.95 bar, and the temperature control range of the dehydrator is 30°C to 40°C; the main purpose of this step is to remove excess water inside the foam body and reduce the water content of the foam body to ensure that the foam body maintains appropriate hardness during the freezing and processing stages;

[0028] S03. Freezing stage: the dehydrated foam is placed in a freezer for low-temperature freezing. The freezing temperature must be kept below 0°C and the freezing time is 2 to 4 hours. The foam is completely hardened by freezing the water in the foam. The main purpose of this step is to increase the hardness of the foam to ensure that the powder puff can still have good stability during the cutting work in the processing stage, so as to achieve the effect of shape retention.

[0029] S04. Processing stage: The hardened foam is finely processed and cut into the required shape according to the design requirements to obtain the powder puff blank; and in order to avoid the foam from softening during processing, the fine cutting of the foam needs to be carried out in a low-temperature processing environment below 0°C to ensure that the water in the foam will not dissolve before the cutting process is completed;

[0030] S05. Secondary washing stage: The formed powder puff blank is washed twice by a washing machine, the washing time is 5 to 15 minutes, the water quality used is deionized water, the pH value is controlled at 6 to 7, the conductivity of the washing liquid does not exceed 50 μS / cm, and the water pressure during the washing process is 0.1 to 0.3 MPa; the main purpose of this step is to dissolve the powder puff blank and, as a fine washing step, remove residual waste and debris on the processing surface to ensure the cleanliness of the powder puff surface;

[0031] S06. Secondary dehydration stage: the powder puff blank after the secondary water washing is dehydrated by a dehydrator for 3 to 10 minutes. The dehydration efficiency of the dehydrator is controlled at 80-90%. The temperature difference during the dehydration process is controlled within 5°C. The main purpose of this step is to remove excess water inside the powder puff blank to prevent the powder puff from absorbing moisture and softening, which affects the quality of the final product. At the same time, it also makes full preparations for the subsequent drying process.

[0032] S07. Drying stage: placing the completely dehydrated powder puff blank on a grill and placing it in a drying room for drying; obtaining a finished powder puff and completing all processing work; the drying temperature in this step is 40°C to 60°C, the drying time is 30 to 60 minutes, the humidity in the drying room is controlled at 10% to 30%, the product placement density in the drying room is not more than 10 per square meter, and the moisture content of the product after drying is not more than 5%, and the wind speed during the drying process is 1 to 3 m / s.

[0033] This step is mainly to remove the residual water in the powder puff, to ensure that the final moisture content of the powder puff reaches the standard for storage and use, and to obtain a finished powder puff.

[0034] Furthermore, in step S01. the water washing stage, a water washing machine with a tumbling function is used to ensure that every part of the foam body can be fully in contact with water, so as to ensure that the foam body can be completely hardened in the subsequent freezing stage.

[0035] Furthermore, in step S03. the freezing stage, the freezing temperature is -5°C to -15°C, and the humidity of the freezing environment (freezer) is controlled at 40% to 60%, and no ice crystals can form on the surface of the bubble during the freezing process, the wind speed of the freezing environment is 0.5 to 1.5 m / s, and the air pressure is maintained at 900 to 950 hPa.

[0036] Furthermore, in step S04. the processing stage, the low-temperature processing environment is maintained at -10°C to -5°C, the cutting processing equipment needs to be equipped with precise temperature control function, the temperature control accuracy is ±0.5°C, the tool material used in the processing is cemented carbide, and the tool rotation speed is 1000 to 3000rpm / min.

[0037] Furthermore, in step S07. the drying stage, the pressure in the drying chamber is maintained at 100±10 kPa, the airflow in the drying chamber is evenly distributed, and the surface temperature of the product does not exceed 70°C during the drying process. After the drying is completed, the product is naturally cooled to room temperature in the drying room, and the cooling time is 10 to 30 minutes.

[0038] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "including a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A powder puff processing method using low temperature freezing technology, characterized in that: It includes the following process steps: S01. Washing stage: The foam obtained by the foaming process is fully washed with water; this step is mainly to make the foam fully wet and remove the chemical substances and impurities remaining during the foaming process of the foam; S02. Dehydration stage: Dehydrating the foam after being fully washed and soaked; this step is mainly to remove excess water inside the foam and reduce the water content of the foam; S03. Freezing stage: The dehydrated foam is subjected to low-temperature freezing treatment, and the foam is completely hardened by freezing the water in the foam. This step is mainly to increase the hardness of the foam to ensure the stability and shape of the powder puff during the processing; S04. Processing stage: finely process the hardened foam body, cut the hardened foam body into the required shape according to the design requirements, and obtain the powder puff blank; S05. Secondary washing stage: The formed powder puff blank is subjected to secondary washing, which is mainly to remove residual waste and debris on the processed surface to ensure the cleanliness of the powder puff surface; S06. Secondary dehydration stage: The powder puff blank after the second water washing is subjected to secondary dehydration. This step is mainly to remove excess water inside the powder puff blank to prevent the powder puff from absorbing moisture and softening, which affects the quality of the final product; S07. Drying stage: Drying the completely dehydrated powder puff blank; this step is mainly to remove the residual moisture in the powder puff, ensure that the final moisture content of the powder puff reaches the standard for storage and use, and obtain the finished powder puff.

2. The powder puff processing method using low temperature freezing technology according to claim 1, characterized in that: In step S01 . the water washing stage, a water washing machine with a tumbling function is used to ensure that every part of the foam body is in full contact with water, so as to ensure that the foam body can be completely hardened in the subsequent freezing stage.

3. The powder puff processing method using low temperature freezing technology according to claim 1, characterized in that: In step S03, during the freezing stage, the freezing temperature of the foam body needs to be maintained below 0°C, and the low-temperature freezing time is 2 to 4 hours to ensure that the foam body can be completely hardened.

4. A powder puff processing method using low temperature freezing technology according to any one of claims 1 or 3, characterized in that: In step S03. the freezing stage, the freezing temperature is -5°C to -15°C and the humidity of the freezing environment is controlled at 40% to 60%. During the freezing process, no ice crystals can form on the surface of the bubble. The wind speed of the freezing environment is 0.5 to 1.5 m / s and the air pressure is maintained at 900 to 950 hPa.

5. The powder puff processing method using low temperature freezing technology according to claim 1, characterized in that: In step S04 . the processing stage, the fine cutting process of the bulb needs to be performed in a low-temperature processing environment below 0° C. to ensure that the moisture in the bulb does not dissolve and cause the bulb to soften before the processing is completed.

6. The powder puff processing method using low temperature freezing technology according to claim 5, characterized in that: In step S04. the processing stage, the low temperature processing environment is maintained at -10℃~-5℃. The cutting processing equipment needs to be equipped with precise temperature control function. The temperature control accuracy is ±0.5℃. The tool material used in the processing is cemented carbide, and the tool rotation speed is 1000~3000rpm / min.

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