Brush head for applying cosmetics

The brush head design, which combines flexible and rigid materials, solves the problems of brush head shedding and poor user experience, achieving a soft and non-deforming application effect, and improving the comfort and application efficiency of lip gloss and lip balm.

CN224268616UActive Publication Date: 2026-05-26ZHEJIANG AXILONE SHUNHUA ALUMINUM IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG AXILONE SHUNHUA ALUMINUM IND
Filing Date
2025-05-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The brush heads of existing liquid cosmetics such as lip gloss and lip balm are prone to shedding after repeated use, and the limited softness and hardness of injection-molded brush heads leads to a poor user experience, with hard plastic causing irritation to the lips and soft plastic easily deforming.

Method used

The brush head is made of a flexible material for the contact body and a rigid material for the support body. The contact body has multiple one-piece protrusions, and the support body is made by two-color injection molding. Combining flexibility and rigidity, the brush head is made of a certain strength and a soft touch during use.

Benefits of technology

The improved brush head design enhances user comfort, prevents bristle shedding, ensures even application without deformation, and improves makeup application efficiency and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a brush head for applying cosmetics, comprising a contact body made of a flexible material and a support body made of a rigid material to support the contact body and maintain its shape. The contact body has an application area with multiple integrally formed protrusions, and the spaces between the protrusions form a space for storing cosmetics. The brush head of this application includes a rigid contact body and a flexible support body. The integrally formed protrusions on the application area of ​​the support body ensure that the brush head has sufficient strength and will not deform during use, while also keeping the part of the brush head that contacts the lips soft, thus improving user comfort.
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Description

Technical Field

[0001] This application relates to the field of cosmetic packaging, and in particular to a brush head for applying cosmetics. Background Technology

[0002] The packaging of liquid cosmetics such as lip gloss and lip balm typically consists of a bottle, a brush handle, and a brush head attached to the end of the handle. Generally, the brush head is covered with fluffy fibers using a flocking process. These fibers absorb the liquid for easy application to the lips. However, the flocking process requires glue to hold the fibers in place, which can cause the brush head to shed fibers after repeated use, thus affecting the user experience.

[0003] To address this issue, injection-molded brush heads have been introduced to the market. However, the hardness or softness of injection-molded brush heads is determined by the material properties, which has certain limitations. If a hard rubber injection-molded brush head is used, consumers may experience a prickly feeling when applying lipstick, resulting in a poor user experience. If a soft rubber injection-molded brush head is used, although the feel is better, consumers may experience problems such as the brush head bending and deforming due to insufficient product strength when applying pressure or outlining the lips, and failing to spring back, which also affects the user experience. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a brush head for applying cosmetics.

[0005] A brush head for applying cosmetics includes a contact body made of a flexible material and a support body made of a rigid material that supports the contact body to maintain its shape. The contact body is provided with an application area having multiple integrally formed protrusions, and the space between the multiple protrusions forms a space for storing cosmetics.

[0006] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0007] Optionally, the support and the contact body are formed by two-color injection molding.

[0008] Optionally, the application area includes a first application area and a second application area that are positioned opposite each other.

[0009] Optionally, the support includes a core and a connecting portion, the core being inserted into the contact body and the connecting portion being exposed outside the contact body.

[0010] Optionally, the support includes a transition portion disposed between the core and the connecting portion, the transition portion smoothly transitioning to the contact body.

[0011] Optionally, the connecting part is provided with an annular groove.

[0012] Optionally, the protrusions may be upright dots or strips.

[0013] Optionally, the distance between two adjacent dot-shaped protrusions is smaller than the diameter of the bottom of the dot-shaped protrusion.

[0014] Optionally, the thickness of the contact body is 0.5mm to 1.2mm.

[0015] Optionally, the hardness of the support body is Shore D 75-85 degrees, and the hardness of the contact body is Shore A 40-50 degrees.

[0016] The brush head for applying cosmetics in this application includes a hard contact body and a flexible support body. The application area of ​​the support body has an integrally molded protrusion, which ensures that the brush head has a certain strength and will not deform during use, while keeping the part of the brush head that contacts the lips soft and improving the comfort of use. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a brush head for applying cosmetics, provided in this application;

[0018] Figure 2 A cross-sectional view of a brush head for applying cosmetics according to an embodiment provided in this application;

[0019] Figure 3 for Figure 1 A structural diagram of the middle brush head from another perspective;

[0020] Figure 4 This is a schematic diagram of the supporting structure.

[0021] The annotations in the figure are explained as follows:

[0022] 100. Contact body; 110. Application area; 111. First application area; 112. Second application area; 120. Protrusion;

[0023] 200, Support body; 210, Core; 220, Connecting part; 221, Annular groove; 230, Transition part. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a system, product, or device that includes a series of units is not necessarily limited to those units that are explicitly listed, but may include other units that are not explicitly listed or that are inherent to such products or devices.

[0029] See Figures 1-4 This application provides an embodiment of a brush head for applying cosmetics, including a contact body 100 and a support body 200. The cosmetics mentioned herein refer to liquid or viscous cosmetics such as lip gloss and lip balm. The contact body 100 is made of a flexible material for direct contact with the user's lips. The flexible material can be thermoplastic polyurethane elastomer (TPU), thermoplastic elastomer (TPE), etc. The support body 200 is made of a rigid material, such as polyethylene (PE), polypropylene (PP), etc., to support the contact body 100 and maintain its shape. In this embodiment, the support body 200 has a Shore D hardness of 75-85 degrees, and the contact body 100 has a Shore A hardness of 40-50 degrees.

[0030] To prevent excessive makeup from slipping off the brush head and making application difficult, the contact body 100 is provided with an application area 110. The application area 110 has multiple integrally formed protrusions 120, and the spaces between the multiple protrusions 120 form a space for storing makeup. This structure allows for quick adsorption of makeup, ensuring that the amount applied each time is uniform and stable. At the same time, the protrusions 120 can generate a slight elastic cushioning when in contact with the skin, resulting in a pleasant tactile experience.

[0031] In this embodiment, the support 200 and the contact 100 are formed by two-color injection molding.

[0032] The brush head of this application includes a contact body 100 made of hard material and a support body 200 made of flexible material. The application area 110 of the support body 200 is provided with an integrally formed protrusion 120, which not only ensures that the brush head has a certain strength and will not deform during use, but also keeps the part of the brush head that contacts the lips soft, thereby improving the comfort of use.

[0033] See Figure 2 and Figure 4 The support body 200 includes a core 210 and a connecting part 220. The core 210 is inserted into the contact body 100 (i.e., the contact body 100 is wrapped around the outer periphery of the core 210), and the connecting part 220 protrudes from the contact body 100 for connection with the brush rod. To facilitate connection, an annular groove 221 is provided on the connecting part 220. The brush rod and the connecting part 220 are assembled by dotting, that is, the outer plastic layer of the brush rod is punctured and deformed inward to lock into the annular groove 221, thereby ensuring a fixed connection with the connecting part 220.

[0034] Furthermore, the support 200 includes a transition portion 230 disposed between the core 210 and the connecting portion 220. The transition portion 230 smoothly transitions with the contact body 100, making the overall appearance more aesthetically pleasing.

[0035] In one embodiment, the contact body 100 and the core 210 have a flat, arc-shaped structure with two wider sides and two narrower sides. The two wider sides are curved in the same direction to form an arc-shaped structure (with opposing inner and outer sides). The first application area 111 and the second application area 112 are located on the two wider sides, respectively. This design allows the arc-shaped portion to closely conform to the lip contour, accurately outlining both the undulations of the cupid's bow and the turns of the corners of the lips. When applying lip gloss, the wider side can cover a larger area at once, improving makeup application efficiency.

[0036] In one embodiment, the first application area 111 is located on the outer side and the second application area 112 is located on the inner side. The protrusions 120 can be distributed in the first application area 111 and the second application area 112 respectively. Of course, since most users will apply the first application area 111 to their lips when using cosmetics, the protrusions 120 can also be distributed only in the first application area 111.

[0037] See Figures 1-3 The protrusion 120 is an upright dot, and the distance between two adjacent dot-shaped protrusions is less than the diameter of the bottom of the dot-shaped protrusion. In another embodiment, the protrusion 120 may also be strip-shaped (not shown in the figure).

[0038] In one embodiment, the thickness of the contact body 100 is 0.5 mm to 1.2 mm.

[0039] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0040] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A brush head for applying cosmetics, characterized in that, It includes a contact body made of flexible material and a support body made of rigid material to support the contact body and maintain its corresponding shape. The contact body is provided with an application area, which has multiple integrally formed protrusions, and the space between the multiple protrusions is formed for storing cosmetics.

2. The brush head according to claim 1, characterized in that, The support and contact body are formed by two-color injection molding.

3. The brush head according to claim 1, characterized in that, The application area includes a first application area and a second application area that are positioned opposite each other.

4. The brush head according to claim 1, characterized in that, The support includes a core and a connecting portion, the core being inserted into the contact body and the connecting portion being exposed outside the contact body.

5. The brush head according to claim 4, characterized in that, The support includes a transition portion disposed between the core and the connecting portion, and the transition portion smoothly transitions with the contact body.

6. The brush head according to claim 4, characterized in that, The connecting part is provided with an annular groove.

7. The brush head according to claim 1, characterized in that, The protrusions are upright dots or strips.

8. The brush head according to claim 7, characterized in that, The distance between two adjacent dot-shaped protrusions is less than the diameter of the bottom of the dot-shaped protrusion.

9. The brush head according to claim 1, characterized in that, The thickness of the contact body is 0.5mm to 1.2mm.

10. The brush head according to claim 1, characterized in that, The hardness of the support is Shore D 75-85 degrees, and the hardness of the contact body is Shore A 40-50 degrees.