Device and method for testing air permeability of film gauze microsphere cosmetics

Abstract

The invention belongs to the field of air permeability testing, and particularly relates to a film Yarn Sphere cosmetic air permeability testing device and a testing method, namely an FYS cosmetic air permeability testing device and a testing method for short. The testing device comprises a shell, a tray, microspheres and a make-up diaphragm, the shell comprises an air inlet in the lower part and an air outlet in the upper part; the tray is horizontally arranged in the shell, the outer edge of the tray is connected with the circumference of the inner wall of the shell, and a plurality of circular through holes are formed in the tray; microspheres are movably arranged above the circular through holes, and the diameter of the microspheres is larger than that of the circular through holes; the dressing diaphragm is arranged in the shell, and the outer edge of the dressing diaphragm is connected with the circumference of the inner wall of the shell. The air permeability of the cosmetic coating on the makeup diaphragm can be intuitively and visually observed by ventilating through the air inlet at the lower part and then observing the number of the relative displacement of the microspheres on the tray.

Description

Technical Field

[0001] The invention belongs to the field of air permeability testing, and in particular relates to a film gauze microsphere cosmetics air permeability testing device and a testing method. Background Art

[0002] Breathability, a key indicator of cosmetic performance, directly impacts skin health and effectiveness. Cosmetics with good breathability allow the skin to breathe effectively, preventing skin problems such as acne and allergies caused by products clogging pores.

[0003] Currently, the main methods for testing the breathability of cosmetics on the market include the breathable membrane method, the pressure differential gas permeation method, and the skin simulation method. While these traditional testing methods can reflect the breathability of cosmetics to a certain extent, they often suffer from complex operations, unstable test results, and long test times, making them difficult to meet the needs of rapid R&D and production, as well as visual comparison.

[0004] To address this issue, a device and method for testing the air permeability of film yarn sphere (FYS) cosmetics is crucial. This device should be easy to operate, provide rapid results, and visualize the results, enabling intuitive visualization of the air permeability of cosmetic coatings on makeup diaphragms. Summary of the Invention

[0005] The present invention aims to address at least one of the technical problems existing in the aforementioned prior art. To this end, the present invention provides a device and method for testing the air permeability of cosmetics using Film Yarn Spheres (FYS), abbreviated as the FYS. This device and method offer advantages such as ease of operation, rapid results, and visual visualization.

[0006] The concept of the present invention is: by introducing air from the bottom of the testing device, the air passes through the cosmetic coating to be tested, blowing up the foam particles above and causing displacement, thereby achieving the purpose of visually testing the air permeability of the cosmetic coating.

[0007] A first aspect of the present invention provides a device and method for testing the air permeability of film gauze microsphere cosmetics.

[0008] Specifically, a film gauze microsphere cosmetics air permeability testing device comprises a shell, a tray, microspheres, and a makeup diaphragm; The housing includes an air inlet at the bottom and an air outlet at the top; The tray is horizontally arranged in the shell, and the outer edge of the tray is connected to the circumference of the inner wall of the shell, and the tray is provided with a plurality of circular through holes; The number of the microspheres corresponds to the circular through holes, the microspheres are movably placed on the circular through holes, and the diameter of the microspheres is larger than the diameter of the circular through holes; The makeup applying membrane is arranged in the shell, and the outer edge of the makeup applying membrane is connected to the circumference of the inner wall of the shell.

[0009] Compared with the prior art, the beneficial effects of the film mesh microsphere cosmetic air permeability testing device and testing method provided in the first aspect are as follows: by ventilating through the air inlet below and then observing the number of relative displacements of the microspheres on the tray, the air permeability of the cosmetic coating on the makeup diaphragm can be intuitively visualized; at the same time, the testing process is simple and efficient.

[0010] Preferably, the shell is a cylindrical shell.

[0011] It should be noted that the number of circular through holes can be adjusted according to the needs of those skilled in the art. The number of through holes in the present invention can be 2-10 or 10-30.

[0012] Preferably, the number of the circular through holes is 2-100; further preferably, the number of the circular through holes is 5-15.

[0013] Preferably, the circular through hole is an upwardly protruding circular through hole; further preferably, the protruding height of the upwardly protruding circular through hole is 0.3-3 mm.

[0014] Preferably, the diameter of the circular through hole is 0.1-2 mm; further preferably, the diameter of the circular through hole is 0.1-1 mm.

[0015] Preferably, the circular through holes are arranged on the tray in an array or an annular arrangement, and the distances between the circular through holes are equal.

[0016] Preferably, the microspheres are made of foam plastic; further preferably, the foam plastic includes polyurethane foam plastic, polystyrene foam plastic, polyvinyl chloride foam plastic, polyethylene foam plastic, and phenolic foam plastic.

[0017] Preferably, the diameter of the microspheres is 0.1-2 mm; further preferably, the diameter of the microspheres is 0.1-1 mm.

[0018] Preferably, the density of the microspheres is 2-50 kg / m 3 ; Further preferably, the density of the microspheres is 2-20kg / m 3 ; Further preferably, the density of the microspheres is 2-10kg / m 3 .

[0019] Preferably, the makeup application membrane is located below the tray.

[0020] Preferably, the material of the makeup membrane includes at least one of natural fiber cloth, synthetic fiber cloth, and filter paper; further preferably, the natural fiber cloth includes at least one of cotton, linen, silk, and animal hair, and the synthetic fiber cloth includes at least one of polyester, nylon, and spandex.

[0021] Preferably, the denier of the makeup membrane is 20-600D; further preferably, the denier of the makeup membrane is 40-200D.

[0022] Preferably, the film mesh microsphere cosmetic air permeability testing device further includes a carrying ring, the outer edge of the carrying ring is connected to the inner wall circumference of the outer shell, the carrying ring is located below the makeup diaphragm and connected to the makeup diaphragm, and is used to carry the makeup diaphragm.

[0023] Preferably, the film mesh microsphere cosmetic air permeability testing device also includes a pressure ring, the outer edge of the pressure ring is connected to the inner wall circumference of the outer shell, the pressure ring is located above the makeup diaphragm and connected to the makeup diaphragm, and is used to clamp and fix the makeup diaphragm on the supporting ring.

[0024] The combination of the carrier ring and the pressure ring can also improve the sealing performance and prevent experimental errors caused by uneven cosmetic coating on the edge of the makeup diaphragm.

[0025] A second aspect of the present invention provides a method for testing the air permeability of cosmetics using the above-mentioned film gauze microsphere cosmetics air permeability testing device, the testing method comprising the following steps: (1) Coating the cosmetic coating to be tested on the makeup membrane and assembling the film gauze microsphere cosmetic air permeability testing device; (2) introducing gas at a preset pressure into the air inlet; (3) Observe the number of displacements of the microspheres.

[0026] Preferably, the preset air pressure is greater than 0.101325 MPa and less than or equal to 1.01325 MPa; further preferably, the preset air pressure is greater than 0.101325 MPa and less than or equal to 0.506625 MPa.

[0027] Compared with the prior art, the present invention has the following beneficial effects: (1) By ventilating the air through the air inlet at the bottom and then observing the number of relative displacements of the microspheres on the tray, the air permeability of the cosmetic coating on the makeup diaphragm can be visually observed and compared. At the same time, the testing process is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a film gauze microsphere cosmetic air permeability testing device according to an embodiment of the present invention; Reference numerals: Housing 100 , air outlet 110 , air inlet 120 , tray 200 , circular through hole 210 , microspheres 300 , and makeup membrane 400 . DETAILED DESCRIPTION

[0029] To help those skilled in the art better understand the technical solutions of the present invention, the following examples are provided for illustration. Examples of these embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. It should be noted that the following examples do not limit the scope of protection claimed in the present invention.

[0030] Reference Figure 1 , Figure 1 Schematic diagram of the structure of a film mesh microsphere cosmetic air permeability testing device according to an embodiment of the present invention, comprising a housing 100, a tray 200, microspheres 300, and a makeup application membrane 400; The housing 100 includes an air inlet 120 at the bottom and an air outlet 110 at the top; The tray 200 is horizontally arranged in the housing 100, and the outer edge of the tray 200 is connected to the inner wall circumference of the housing 100. The tray 200 is provided with a plurality of circular through holes 210; The number of the microspheres 300 corresponds to the circular through holes 210 , each of the microspheres 300 is movably placed on each of the circular through holes 210 , and the diameter of the microspheres 300 is larger than the diameter of the circular through holes 210 ; The makeup applying membrane 400 is disposed in the housing 100 , and the outer edge of the makeup applying membrane 400 is connected to the inner wall circumference of the housing 100 .

[0031] According to some embodiments of the present invention, the housing 100 is a cylindrical housing.

[0032] It should be noted that the number of the circular through holes 210 can be adjusted according to the needs of those skilled in the art. The number of through holes in the present invention can be 2-10 or 10-30.

[0033] According to some embodiments of the present invention, the number of microspheres 300 is the same as the number of circular through-holes 210 .

[0034] According to some embodiments of the present invention, the circular through hole 210 is an upwardly protruding circular through hole 210; further preferably, the protruding height of the upwardly protruding circular through hole 210 is 0.3-3 mm.

[0035] According to some embodiments of the present invention, the diameter of the circular through hole 210 is 0.1-2 mm; more preferably, the diameter of the circular through hole 210 is 0.1-1 mm.

[0036] According to some embodiments of the present invention, the circular through holes 210 are arranged on the tray 200 in an array or an annular arrangement, and the distances between the circular through holes 210 are equal.

[0037] According to some embodiments of the present invention, the microspheres 300 are made of foam plastics; more preferably, the foam plastics include polyurethane foam plastics, polystyrene foam plastics, polyvinyl chloride foam plastics, polyethylene foam plastics, and phenolic foam plastics.

[0038] According to some embodiments of the present invention, the diameter of the microsphere 300 is 0.1-2 mm; more preferably, the diameter of the microsphere 300 is 0.1-1 mm.

[0039] According to some embodiments of the present invention, the density of the microspheres 300 is 1-50 kg / m 3 Further preferably, the density of the microspheres 300 is 1-20 kg / m 3 Further preferably, the density of the microspheres 300 is 1-10 kg / m 3 .

[0040] According to some embodiments of the present invention, the makeup application membrane 400 is located below the tray 200 .

[0041] According to some embodiments of the present invention, the material of the makeup membrane 400 includes at least one of natural fiber cloth, synthetic fiber cloth, and filter paper; further preferably, the natural fiber cloth includes at least one of cotton, linen, silk, and animal hair, and the synthetic fiber cloth includes at least one of polyester, nylon, and spandex.

[0042] According to some embodiments of the present invention, the denier of the makeup applying membrane 400 is 20-600D; more preferably, the denier of the makeup applying membrane 400 is 40-200D.

[0043] According to some embodiments of the present invention, the film mesh microsphere cosmetic air permeability testing device also includes a carrying ring, the outer edge of the carrying ring is connected to the inner wall circumference of the outer shell, the carrying ring is located below the makeup applying membrane 400 and is connected to the makeup applying membrane 400, and is used to support the makeup applying membrane 400.

[0044] According to some embodiments of the present invention, the film mesh microsphere cosmetic air permeability testing device also includes a pressure ring, the outer edge of the pressure ring is connected to the inner wall circumference of the outer shell, the pressure ring is located above the makeup application diaphragm 400 and is connected to the makeup application diaphragm 400, and is used to clamp and fix the makeup application diaphragm 400 on the supporting ring. Example 1

[0045] A test method for the air permeability of cosmetics.

[0046] The method uses a film mesh microsphere cosmetics air permeability test device, which includes a cylindrical shell, a tray, a diameter of 0.5 mm and a density of 5 kg / m 3 Polyethylene foam microspheres, 100D silk makeup diaphragm, carrying ring and pressure ring; The housing includes an air inlet at the bottom and an air outlet at the top; The tray is horizontally arranged in the shell, and the outer edge of the tray is connected to the inner wall circumference of the shell. The tray is provided with eight circular through holes with a diameter of 0.4mm and a protruding height of 0.5mm. A microball is movably arranged above each circular through hole, and the diameter of the microball is larger than the diameter of the circular through hole; The makeup diaphragm is arranged in the shell, and the outer edge of the makeup diaphragm is connected to the inner wall circumference of the shell, and the makeup diaphragm is located below the tray; The outer edge of the carrying ring is connected to the inner wall circumference of the shell, and the outer edge of the pressure ring is connected to the inner wall circumference of the shell. The carrying ring is located below the upper makeup diaphragm, and the pressure ring is located above the upper makeup diaphragm. The carrying ring and the pressure ring clamp and fix the upper makeup diaphragm.

[0047] The steps of the test method for the air permeability of cosmetics are as follows: (1) Coat the cosmetic coating to be tested on the makeup membrane and assemble the film mesh microsphere cosmetic air permeability test device; (2) Introduce gas at a preset pressure of 0.202650 MPa into the air inlet; (3) Observe the number of microspheres that have been displaced.

[0048] The cosmetics to be tested are Liquid Foundation I, Liquid Foundation II, Liquid Foundation III, and Liquid Foundation IV, and the air permeability test data are recorded in Table 1.

[0049] Table 1 Air permeability test data of Example 1 Number of microsphere displacements (pieces) Liquid Foundation I 4 Liquid Foundation Ⅱ 2 Liquid Foundation III 1 Liquid Foundation IV 2 By ventilating through the air inlet at the bottom and observing the number of relative displacements of the microspheres on the tray, the breathability of the cosmetic coating on the makeup diaphragm can be visually observed.

Claims

1. A film mesh microsphere cosmetics air permeability testing device, characterized in that: The film mesh microsphere cosmetics air permeability testing device comprises a housing, a tray, microspheres, and a makeup diaphragm; The housing includes an air inlet at the bottom and an air outlet at the top; The tray is horizontally arranged in the shell, and the outer edge of the tray is connected to the circumference of the inner wall of the shell, and the tray is provided with a plurality of circular through holes; The number of the microspheres corresponds to the circular through holes, the microspheres are movably placed on the circular through holes, and the diameter of the microspheres is larger than the diameter of the circular through holes; The makeup applying membrane is arranged in the shell, and the outer edge of the makeup applying membrane is connected to the inner wall circumference of the shell.

2. The film mesh microsphere cosmetics air permeability testing device according to claim 1, characterized in that: The circular through hole is an upwardly protruding circular through hole, and the protruding height of the upwardly protruding circular through hole is 0.3-3 mm.

3. The film mesh microsphere cosmetics air permeability testing device according to claim 1, characterized in that: The diameter of the circular through hole is 0.1-2 mm.

4. The film mesh microsphere cosmetics air permeability testing device according to claim 1, characterized in that: The material of the microspheres includes at least one of polyurethane foam plastics, polystyrene foam plastics, polyvinyl chloride foam plastics, polyethylene foam plastics, and phenolic foam plastics.

5. The film mesh microsphere cosmetics air permeability testing device according to claim 1, characterized in that: The diameter of the microspheres is 0.1-2 mm.

6. The film mesh microsphere cosmetics air permeability testing device according to claim 1, characterized in that: The density of the microspheres is 2-50 kg / m 3 .

7. The film mesh microsphere cosmetics air permeability testing device according to claim 1, characterized in that: The material of the makeup diaphragm includes at least one of natural fiber cloth, synthetic fiber cloth, and filter paper.

8. The film mesh microsphere cosmetics air permeability testing device according to claim 1, characterized in that: The film gauze microsphere cosmetic air permeability testing device also includes a carrying ring, the outer edge of which is connected to the inner wall circumference of the shell, and the carrying ring is located below the makeup diaphragm for supporting the makeup diaphragm.

9. The film mesh microsphere cosmetics air permeability testing device according to claim 8, characterized in that: The film gauze microsphere cosmetic air permeability testing device also includes a pressure ring, the outer edge of which is connected to the inner wall circumference of the shell. The pressure ring is located above the makeup application membrane and is used to clamp and fix the makeup application membrane on the carrying ring.

10. A method for testing the air permeability of cosmetics, characterized in that: The test method uses the film gauze microsphere cosmetics air permeability test device according to any one of claims 1 to 9, and the test method comprises the following steps: (1) Coating the cosmetic coating to be tested on the makeup membrane and assembling the film gauze microsphere cosmetic air permeability testing device; (2) introducing gas at a preset pressure into the air inlet; (3) Observe the number of displacements of the microspheres.

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