Cosmetic product structured to fix impregnation member

The cosmetic product with a ring and mesh net structure effectively secures dome-shaped impregnating materials, enhancing adhesion and durability, addressing application inconveniences and shape retention issues.

WO2026101016A1PCT designated stage Publication Date: 2026-05-15COSMAX INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
COSMAX INC
Filing Date
2025-10-01
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing liquid or gel foundations are inconvenient to apply and lack effective containers for dome-shaped impregnating materials that provide a three-dimensional effect, leading to issues like clumping and poor adhesion.

Method used

A cosmetic product with a fixing device that includes a ring portion and a mesh net to secure a dome-shaped impregnating material, where the mesh net forms a larger curved surface than the opening, enhancing adhesive durability and maintaining a flat edge pattern even after use.

Benefits of technology

The solution provides improved adhesion and durability for dome-shaped impregnating materials, ensuring they maintain their shape and effectiveness over time without damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a cosmetic product for accommodating a cosmetics-impregnation member. The present invention provides the cosmetic product comprising: a cosmetic container having a bottom surface, and a first wall part extending upward from the outer periphery of the bottom surface in order to accommodate an impregnation member therein; the impregnation member which is accommodated in the cosmetic container, and which has a lower surface in contact with the bottom surface and an upper surface opposite thereto; and an impregnation member fixture having, therein, an opening for discharging cosmetics impregnated in the impregnation member, and including a ring part coupled to the first wall part from the upper side of the cosmetic container so as to press and fix the outer periphery of the impregnation member and a mesh net fixed to the lower end of the ring part, thereby encompassing the upper surface of the impregnation member, wherein the mesh net forms a curved surface such that the area of the mesh net is larger than a planar area of the opening at the lower end of the ring part, in a state in which external force is not applied.
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Description

Cosmetics with an impregnated material fixing structure

[0001] The present invention relates to cosmetics, and more specifically to cosmetics containing a cosmetic impregnating material.

[0002] Foundation, a type of base makeup used to even out skin tone and cover imperfections, is broadly classified into solid foundation and liquid or gel foundation. Solid foundation is stored in containers in the form of compressed powder formulations, dry or wet powder formulations, and is applied by dabbing with a puff. Liquid or gel foundation is filled into containers such as bottles or tubes and is applied by scooping it out onto the hand.

[0003] Liquid or gel foundations have less clumping and better adhesion compared to solid foundations, but they are inconvenient to apply, such as getting on the hands. To solve these problems, a method has been proposed in which a liquid or gel foundation is impregnated with an impregnating agent, stored in a container, and applied by dabbing with a puff.

[0004] Accordingly, various impregnation materials for impregnating cosmetics are being developed, and there is a demand for the development of containers to accommodate these impregnation materials. In particular, cosmetic impregnation materials in the shape of a dome with a convex upper surface are accepted by consumers as an attractive form of impregnation material because they provide a three-dimensional effect when used. Therefore, there is a demand for the development of containers and fixtures that can effectively accommodate such dome-shaped cosmetic impregnation materials.

[0005] In order to solve the problems of the prior art as described above, the present invention aims to provide an impregnated cosmetic having an impregnated material fixing structure having a dome-shaped impregnated material.

[0006] In addition, the present invention aims to provide an impregnated cosmetic with a structure suitable for fixing the exterior of a dome-shaped impregnated material.

[0007] In addition, the present invention aims to provide an impregnated cosmetic having a mesh net of a mesh structure having improved adhesive durability.

[0008] In addition, the present invention aims to provide a fixing device for fixing an impregnating material suitable for use in the aforementioned cosmetic.

[0009] To achieve the above technical objectives, the present invention provides a cosmetic product comprising: a bottom surface and a first wall portion extending upward from the outer circumference of the bottom surface to accommodate an impregnating material inside; an impregnating material accommodated in the cosmetic product and having a lower surface in contact with the bottom surface and an upper surface opposite to it; and an impregnating material fixing device having an opening on the inside for discharging a cosmetic product impregnated in the impregnating material, a ring portion coupled to the first wall portion from the top of the cosmetic product to press and fix the outer circumference of the impregnating material, and a mesh net fixed to the bottom of the ring portion to surround the upper surface of the impregnating material, wherein the mesh net forms a curved surface in which the area of ​​the mesh net is larger than the opening plane area at the bottom of the ring portion when no external force is applied.

[0010] In the present invention, the area of ​​the mesh may be at least 5% larger than the area of ​​the opening.

[0011] In addition, the ring portion in the present invention may comprise an inner member; an outer member; and a ring-shaped groove between the inner member and the outer member.

[0012] In the present invention, the ring-shaped groove can be fitted and coupled with the first wall portion opposite to the first wall portion.

[0013] In addition, in the present invention, the mesh net can be fixed to the outer circumference of the lower end of the inner member.

[0014] In the present invention, the mesh net can be attached to the bottom of the inner member.

[0015] In addition, in the present invention, a flat edge-shaped compression pattern can be imprinted on the upper surface of the impregnated material by pressing and fixing a ring portion along the outer circumference of a dome-shaped central portion. At this time, the molded flat edge-shaped compression pattern on the upper surface can be maintained even when the ring portion is removed.

[0016] In the present invention, the impregnating material is preferably a polyether-polyester polyurethane material.

[0017] To achieve the above other technical objectives, the present invention provides a fixing device for fixing a cosmetic impregnated material, comprising an opening on the inner side for releasing a cosmetic impregnated material, a ring portion for pressing and fixing the outer circumference of the impregnated material, and a mesh net fixed to the opening of the ring portion, wherein the mesh net forms a curved surface in which the area of ​​the mesh net is larger than the planar area of ​​the opening at the bottom of the ring portion when no external force is applied.

[0018] In the present invention, it is preferable that the area of ​​the mesh net be at least 5% larger than the area of ​​the opening.

[0019] In addition, the mesh may have curved folds along the periphery of the opening.

[0020] According to the present invention, it is possible to provide an impregnated cosmetic product having a structure suitable for fixing the exterior of a dome-shaped impregnated material.

[0021] In addition, according to the present invention, it is possible to provide an impregnated cosmetic having a mesh net of a mesh structure having improved adhesive durability.

[0022] FIGS. 1a and FIGS. 1b are a perspective view and a cross-sectional view, respectively, schematically illustrating an example of an impregnated material fixing device according to one embodiment of the present invention.

[0023] FIG. 2 is a cross-sectional view schematically illustrating a cosmetic product according to one embodiment of the present invention.

[0024] FIG. 3 is an exploded perspective view schematically illustrating a cosmetic product according to one embodiment of the present invention.

[0025] FIG. 4 is a drawing for explaining the external deformation of an impregnating material contained in a cosmetic according to one embodiment of the present invention.

[0026] Embodiments according to the present invention will be described in detail below with reference to the drawings. However, these embodiments are intended to illustrate the present invention and should not be interpreted as limiting the scope of the present invention.

[0027] Throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0028] FIGS. 1a and FIGS. 1b are a perspective view and a cross-sectional view, respectively, schematically illustrating an example of an impregnating material fixing device as part of a cosmetic according to one embodiment of the present invention.

[0029] Referring to FIGS. 1a and 1b, the impregnating material fixing member (110) is provided with, for example, a circular ring portion (112). An opening (118) is formed on the inner side of the ring portion (112). In the present invention, the ring portion (112) can pressurize and fix the impregnating material along the outer circumference of the impregnating material.

[0030] The above ring portion (112) may include an inner member (112A) and an outer member (112B) that forms a ring-shaped groove (114) between the inner member. As described below, the ring-shaped groove (14) can be fitted into a cosmetic container.

[0031] A mesh net (116) covering the entire opening (118) of the ring portion (112) is installed in the ring portion (112). For example, the mesh net (116) can be fixed to the inner member (112A) along the outer circumference of the bottom of the inner member (112A). The entire outer circumference of the bottom of the inner member can function as a fixed end of the mesh net. To form the fixed end, the mesh net (116) can be bonded to the inner member in various ways. For example, various bonding methods such as heat bonding, high-frequency bonding, ultrasonic bonding, or hot melt can be used.

[0032] In the present invention, the mesh (116) covering the opening (118) provides a permeable channel for the cosmetic. In the present invention, the mesh (116) can be implemented by any two-dimensional membrane having permeability to the liquid cosmetic. For example, an elastic or non-stretchable fabric woven by helical and transverse threads can be used as the mesh. In addition, any material that functions as a permeable membrane by having a repeating aperture pattern can be used.

[0033] In the present invention, the mesh (116) is loosely fixed to the ring portion (112) without any external force being applied. While fixed to the ring portion, the mesh (116) forms a curved surface. Accordingly, in the present invention, the area of ​​the mesh (116) covering the opening (118) is larger than the planar area defined by the opening. For example, the mesh (116) may have an excess area of ​​1% or more, 2% or more, 3% or more, 4% or more, 5% or more, or 10% or more than the planar area formed by the opening at the bottom of the ring portion. In the present invention, the maximum area occupied by the mesh may be limited by the surface shape of the embedded impregnating material. When the impregnating material is mounted, it is desirable for the mesh to remain taut along the surface of the impregnating material. Therefore, it is desirable for the mesh to have a larger curved surface area as the radius of curvature formed by the surface of the impregnating material increases. In a conventional dome-shaped impregnated material shape, it is preferable that the excess area of ​​the mesh based on the opening planar area has a value of 15% or less or 25% or less with respect to the opening planar area.

[0034] In the present invention, the mesh (116) is maintained in a loose state at the opening without external force being applied, thereby forming an irregular curved surface. Since the outer circumference of the mesh (116) is fixed to the lower end of the inner member, while the part covering the opening between them is not, a number of wrinkles can be formed in the mesh. Additionally, in the present invention, the wrinkles formed in the mesh (116) may be concentrated at the outer circumference of the opening. Furthermore, the wrinkles may be curved wrinkles in the form of repeating peaks and valleys along the outer circumference of the fixed end of the inner member.

[0035] As described above, in the present invention, the mesh net can be attached to the opening in a loose state. In this state, since no tensile force is applied to the mesh net, the attachment durability of the mesh net can be increased.

[0036] Below, a cosmetic product impregnated with a cosmetic having the aforementioned fixing device is described.

[0037] FIG. 2 is a cross-sectional view schematically illustrating a cosmetic product according to one embodiment of the present invention, and FIG. 3 is an exploded perspective view.

[0038] Referring to FIGS. 2 and 3, the cosmetic may include an impregnating material (130), a cosmetic container (150), and a lid (170).

[0039] As described above, the cosmetic comprises a container (150) that accommodates an impregnating material (130). The container (150) may have a bottom surface (152) and a first wall portion (154) that extends upward along the perimeter of the bottom surface (152). The bottom surface (152) and the first wall portion (154) define a space for accommodating the impregnating material. Additionally, in the present invention, a second wall portion (156) that forms the exterior of the cosmetic may be provided along the outer perimeter of the first wall portion (154), with a trench (158) spaced at a predetermined distance from the first wall portion.

[0040] The fixing member (110) secures the impregnated material (130) contained within the container (150). In the present invention, the fixing member may be coupled to the first wall portion (154) of the container. In the present invention, the fixing member may be secured to the first wall portion (1540) in an appropriate manner. As illustrated, the fixing member may be secured to the first wall portion by fitting the ring-shaped groove (114) of the fixing member to the first wall portion (154). It is preferable that the minimum width of the ring-shaped groove (114) between the inner member (112A) and the outer member (112B) be designed to have a value smaller than the thickness of the first wall portion. By this securing, the impregnated material (130) may be kept trapped inside the container.

[0041] Alternatively or in parallel, the fixing member (110) may be fixed to the container (150) by fastening the outer member (112B) to the trench (158) between the first wall (154) and the second wall (156). For this purpose, a suitable fastening mechanism may be provided.

[0042] In the present invention, foamed foam of various materials may be used as the impregnating material (130). For example, in the present invention, the impregnating material may be implemented as a foamed synthetic resin. The foamed pores inside the impregnating material are connected to each other to form open channels. The pore structure of the impregnating material may be an open-cell foam or a mesh foam structure. In the present invention, the number of pores per inch (ppi) of the impregnating material may be 30 to 200 or 70 to 200.

[0043] In the present invention, various synthetic resins may be used as the material of the impregnating material, such as polyether, polyester, polyurethane, PVA (polyvinyl alcohol), PE (polyethylene), EVA (ethylene vinyl acetate), ABS (acrylonitrile butadiene styrene), or synthetic rubber.

[0044] For example, the polyurethane may be a polyurethane manufactured using a polyether polyol, a polyester polyol, a mixture thereof, or a copolymer thereof as a raw material, and the synthetic rubber may be at least one type of rubber selected from the group consisting of SBR (styrene-butadiene rubber), BR (butadiene rubber), NR (natural rubber), and NBR (acrylonitrile-butadiene rubber).

[0045] Referring again to FIGS. 2 and 3, in the present invention, the mesh net (116) surrounds the surface of the impregnated material by fixing the fixing member (110) to the container (150). At this time, the mesh net in a loose state can change to a taut state through contact with the impregnated material.

[0046] Meanwhile, in the present invention, it is preferable that the fixing member (110) be positioned to press the impregnating material in a combined state with the container. For example, the drawing illustrates a state in which the inner member (112A) of the fixing member presses the impregnating material along the outer circumference of the impregnating material. At this time, it is preferable that the pressurized area be a dome-shaped surface area inside the sealing end (136) of the impregnating material.

[0047] Below, the deformation caused by the pressure of the impregnated material is explained with reference to FIG. 4.

[0048] As shown in the left drawing of FIG. 4, the impregnated material before being assembled into a cosmetic has an upper dome (132) and a lower dome (134), forming a dome structure in which the upper and lower parts are symmetrical with respect to the sealing section (136). In this state, as shown in FIG. 2, when a portion of the dome-shaped curved surface inside the sealing section of the impregnated material is compressed by the pressure of a fixing member, a flat edge pattern (138) is formed around the perimeter of the impregnated material, and as a result, a stepped structure in the form of a step extending from the sealing section (1360) to the inside of the sealing section is created. In the present invention, the width (w) of the flat edge pattern corresponds to the width of the inner member of the fixing member.

[0049] In the present invention, the flat-edge shaped compression pattern (138) formed around the impregnating material can be maintained in an imprinted state even after being separated from the container. Additionally, it is desirable that the impregnating material is not damaged despite deformation that creates the compression pattern (138). To this end, it is preferable to use a polyether-polyester polyurethane foam as the impregnating material. More preferably, the polyether-polyester polyurethane foam is an intermediate ratio polyether-polyester polyurethane foam. Here, an intermediate ratio refers to a ratio of ester groups within the polyurethane that is close to half, and for example, the ratio of ether to ester is preferably 4:6 to 6:4.

[0050] In the specification of the present invention, the term "polyether-polyester polyurethane foam" includes a polyurethane formed by reacting a mixture of polyether polyol and polyester polyol with a compound having an isocyanate (-NCO) group and processing it as a foamed foam, or a polyurethane formed by reacting a hybrid copolymer of polyether polyol and polyester polyol with a compound having an isocyanate (-NCO) group and processing it as a foamed foam. Furthermore, in the present invention, the ether:ester ratio refers to the molar ratio of ester groups and ether groups within the ether / ester polyurethane foam. For example, ether:ester = 4:6 means that the molar ratio of ether groups to ester groups within the polyurethane is 4:6.

[0051] (Experimental Example 1)

[0052] Five sponges with a diameter of 52 mm and a thickness of 11 mm were manufactured using a polyurethane material with an ether:ester molar ratio of 5:5. The manufactured sponges were placed in a cosmetic container and impregnated with an emulsion composition having the following composition and a viscosity of 10,000 cps, and stored in a 45°C constant temperature bath for 2 months.

[0053] Ingredients (Weight%) Preparation Example Oil Phase: Lauryl PEG-Polydimethylsiloxyethyl Dimethicone 3.5 PEG-10 Dimethicone 1.0 Butylene Glycol Dicaprylate / Dicaprate 10.0 Dimethicone 9.0 Diphenylsiloxyphenyl Trimethicone 6.0 Methyl Trimethicone 3.0 Disteariconium Hectorite 0.6 Powder: Titanium Dioxide 14.0 Yellow Iron Oxide 0.86 Red Iron Oxide 0.22 Black Iron Oxide 0.03 Nylon Powder 0.87 Aqueous Phase: Unpurified Water Residue Glycerin 10.0 Other Additives 0.5 Total 100.0

[0054] Specifically, according to the composition of Table 1 above, Lauryl PEG-polydimethylsiloxyethyl dimethicone, PEG-10 dimethicone, and butylene glycol dicaprylate / dicaprate were heated and dissolved at 60°C, and dimethicone, diphenylsiloxyphenyltrimethicone, methyltrimethicone, and distearadimonium hectorite were sufficiently dispersed using an azimixer, after which the oil phase was mixed. Subsequently, powder was added to prepare the oil phase. The prepared oil phase was mixed with a homomixer at 60°C and stirred at 4000 rpm for 10 minutes. Glycerin, purified water, and other additives were heated and dissolved at 60°C to prepare the aqueous phase. The oil phase was mixed with a homomixer at 60°C, the aqueous phase was slowly added, and the mixture was stirred at 6000 rpm for 10 minutes to prepare a cosmetic composition.

[0055] After storing for 2 months, the impregnated contents were used 5 times a day using a puff, and after 14 days, the appearance of the sponge was observed and the thickness was measured.

[0056] As a result of the observation, no external defects were observed, and it was confirmed that the sponge thickness remained constant without change. Figure 5 (a) is a photograph of the appearance of the sponge sample that underwent the test of Experimental Example 3.

[0057] (Experimental Example 2)

[0058] Except for using a 100% ester polyurethane sponge, the contents were impregnated in the same manner as in Experimental Example 1, and the appearance was observed after storing for 2 months and using for 14 days.

[0059] As a result of observation, it was confirmed that the thickness of four sponges was significantly reduced. The present invention is characterized by a sponge with a convex shape in the center, which should provide the user with a soft, elastic sensation when used as a cosmetic product, but the sponge of Experimental Example 2 sinks flat and cannot provide such a sensation.

[0060] Figure 5(b) is a photograph of the appearance of a sponge sample that underwent the test of Experimental Example 2.

[0061] (Experimental Example 3)

[0062] Except for using a 100% ether polyurethane sponge, the contents were impregnated in the same manner as in Experimental Example 1, and the appearance was observed after storing for 2 months and using for 14 days.

[0063] As a result of observation, tearing and threading due to sponge corrosion occurred in 3 out of 5 sponge samples. Figure 5 (a) is a photograph of the appearance of the sample with sponge corrosion in Experimental Example 1.

[0064] Classification | Sponge Type | Average Thickness | Defect Rate Observation Results Experiment Example 1 | Polyurethane 5:5 | 10.99 mm | 0 / 5 | No abnormalities Experiment Example 2 | Ester 100% | 10.11 mm | 4 / 5 | Sponge thickness reduction (-8.09%) Experiment Example 3 | Ether 100% | 10.97 mm | 3 / 5 | Corrosion, thread formation

[0065]

[0066] In the case of Experimental Example 1, no significant changes were observed in any of the five samples, and it was confirmed that the robustness and external characteristics were maintained.

[0067] In the case of Experimental Example 2, the height of the sponge decreased significantly in 4 out of 5 samples after use, and the average thickness reduction of the 5 samples was -8.09%, indicating a problem where the sponge gradually sank due to reduced durability after use. This suggests that although the ester sponge has excellent elasticity and flexibility, its lack of rigidity causes a decrease in elasticity during use. Therefore, it can be seen that in the case of a 100% ether sponge, it is difficult to maintain the shape in which the mesh wraps around the upper surface of the impregnating material for a long time.

[0068] In the case of Experimental Example 3, sponge corrosion (tearing) and threading occurred in 3 out of 5 test groups, and the change in sponge height before and after immersion was -0.02%, indicating no significant difference. It is judged that corrosion occurred during use because the ether material, while possessing strengths such as chemical resistance and high density, lacked flexibility due to its physical properties. Therefore, in the case of 100% ester sponges, it becomes difficult to apply mesh nets due to defects on the surface of the impregnating material, such as debris or threading.

[0069] The present invention is not limited to the embodiments described above, and it will be apparent that various substitutions, changes, and modifications are possible by those skilled in the art within the technical scope of the present invention.

[0070] The present invention is applicable to cosmetics.

Claims

1. A cosmetic container having a bottom surface and a first wall portion extending upward from the outer periphery of the bottom surface to accommodate an impregnating material inside; An impregnated material having a lower surface in contact with the bottom surface and an upper surface opposite to it, which is accommodated in the above cosmetic container; and The impregnation fixing device comprises an opening on the inner side for discharging a cosmetic product impregnated in the impregnation material, a ring portion coupled to the first wall portion from the upper side of the cosmetic container to press and fix the outer circumference of the impregnation material, and a mesh net fixed to the lower end of the ring portion to surround the upper surface of the impregnation material. The above mesh forms a curved surface in which the area of ​​the mesh is larger than the opening plane area at the bottom of the ring portion when no external force is applied.

2. In Paragraph 1, A cosmetic product in which the area of ​​the mesh is at least 5% larger than the area of ​​the opening.

3. In Paragraph 1, The above ring portion is, A cosmetic having an inner member; an outer member; and a ring-shaped groove between the inner member and the outer member.

4. In Paragraph 1, The above ring-shaped groove is fitted and coupled to the first wall portion opposite to the first wall portion, a cosmetic.

5. In Paragraph 1, The above mesh net is a cosmetic product that is fixed to the outer circumference of the lower part of the inner member.

6. In Paragraph 1, The above mesh net is a cosmetic product that is adhered to the bottom of the inner member.

7. In Paragraph 1, A cosmetic product in which the upper surface of the impregnated material has a dome-shaped central part and a flat edge-shaped compression pattern imprinted by pressure fixing of the ring part along the outer circumference of the central part.

8. In Paragraph 7, A cosmetic product in which a compressed pattern of a molded flat edge shape on the upper surface is maintained when the above ring portion is removed.

9. In Paragraph 7, The above-mentioned impregnation material is a cosmetic material made of polyether-polyester polyurethane.

10. A fixing device for fixing a cosmetic impregnated material, comprising an opening on the inner side for releasing a cosmetic impregnated in the impregnated material, a ring portion for pressing and fixing the outer circumference of the impregnated material, and a mesh net fixed to the opening of the ring portion, A cosmetic impregnating material fixing device, wherein the mesh net forms a curved surface in which the area of ​​the mesh net is larger than the opening plane area at the bottom of the ring portion when no external force is applied.

11. In Paragraph 10, A fixing device for cosmetic impregnated material, wherein the area of ​​the mesh is at least 5% larger than the area of ​​the opening.

12. In Paragraph 10, The above mesh is a cosmetic impregnation fixing device having curved folds along the periphery of the opening.