Applicator

Abstract

The present application relates to an applicator for applying a cosmetic, a skin care product and / or a drug to hairless skin. The applicator comprises a mounting portion and an application portion fixedly connected to the mounting portion, wherein at least two bristles are provided on the application portion; and the mounting portion, the application portion and the bristles are formed as an integrally injection-molded part made of a thermoplastic material having a Shore hardness greater than 65A. In the applicator of the present application, the mounting portion, the application portion and the bristles are integrally injection-molded, which omits the traditional bristle implantation process, so that there is no risk of debonding of bristles and no risk of adhesive dissolving in a cosmetic material.

Description

applicator Technical Field

[0001] The present application relates to cosmetic application technology, and in particular to an applicator. Background Art

[0002] In the art, lip gloss and other lip cosmetics are typically applied using a cotton tip. The cotton tip is manufactured by first injecting a plastic body, applying glue to the body, and finally using electrostatic flocking to allow the glued body to absorb fine hairs. This results in a cotton tip with a plastic body and a fine hair layer on the outside.

[0003] However, the current cotton tips have the following disadvantages due to the use of glue: the glue is easy to debond, causing the risk of fluff falling off; there is a risk that the glue will dissolve in the cosmetic material, and once compatibility occurs, it will affect the quality of the cosmetics and the health of the user.

[0004] Summary of the Invention

[0005] In order to overcome the above-mentioned defects, the present application provides an applicator in which the mounting part, the application part and the fluff are integrally injection-molded, omitting the traditional flocking process, so there is no risk of the fluff degumming or the glue dissolving in the cosmetic material.

[0006] The technical solution adopted by this application to solve its technical problems is:

[0007] An applicator for applying cosmetics, skin care products and / or medicines to hairless skin. The applicator includes a mounting portion and an application portion fixedly connected to the mounting portion. The application portion is provided with at least two bristles. The mounting portion, the application portion and the bristles are an integral injection-molded part made of a thermoplastic material. The Shore hardness of the thermoplastic material is greater than 65A.

[0008] Optionally, the thermoplastic material has a Shore hardness of 70A to 95A.

[0009] Optionally, the thermoplastic material has a Shore hardness of 70A, 72A, 75A, 80A, 85A, 87A or 90A.

[0010] Optionally, the first end of the fluff is fixedly connected to the application portion, the second end of the fluff is a free end, and the second end of the fluff extends toward the outside of the application portion, the average diameter of the fluff is 0.06mm to 0.2mm, and the length L of the fluff is 0.6mm to 2mm.

[0011] Optionally, the distance H between two adjacent hairs is equal.

[0012] Optionally, the distance H between two adjacent hairs is 0.1 mm to 0.6 mm.

[0013] Optionally, the density of the hairs on the smearing part is 2 hairs / mm 2 Up to 30 pieces / mm 2 .

[0014] Optionally, the spatial shape of the fluff is a designated cone, the designated cone is a cone or a truncated cone, and the taper of the designated cone is in the range of 1:15 to 1:20.

[0015] Optionally, the thermoplastic material includes the following raw material components in parts by weight: 20-40 parts of polyurethane, 20-30 parts of polyester fiber, 20-30 parts of filler, 15-25 parts of plasticizer, 0-5 parts of colorant, 0-1 part of ultraviolet stabilizer and 0-1 part of antioxidant.

[0016] Optionally, the thermoplastic material comprises the following raw material components in parts by weight: 15-30 parts of styrene-ethylene-butylene-styrene block copolymer, 20-40 parts of paraffin oil, 15-30 parts of polypropylene, 15-30 parts of calcium carbonate and 0-3 parts of auxiliary materials.

[0017] Optionally, the thermoplastic material comprises the following raw material components in parts by weight: 95-99.5 parts of a polymer of 1,4-dimethyl phthalate, 1,4-butanediol and α-hydrogen-ω-hydroxy poly(1,4-butanediol) and 0.5-2 parts of an adhesive.

[0018] Optionally, the thermoplastic material comprises the following raw material components in parts by weight: 95-99.8 parts of a polymer of 1,3-dimethyl phthalate, 1,4-butanediol, 1,4-phthalic acid and poly(1,4-butanediol) and 0.1-2 parts of an adhesive.

[0019] The beneficial effects of the present application are as follows: the applicator in the present application is an integral injection molded part made of thermoplastic material, that is, the mounting portion, the application portion, and the hairs are molded at the same time. Compared with the traditional brush head process, the present applicator omits the flocking process, thereby simplifying the production process of the applicator, improving production efficiency, and reducing manufacturing costs; and the applicator does not need to be coated with glue, so there is no risk of hair degumming and glue dissolving in the cosmetic material. The hardness of the thermoplastic material in the present application is controlled to be above 65 Shore A. Compared with traditional hairs, the hardness of the hairs in the present application is improved, so the ability to protect the gaps between the hairs is correspondingly improved, thereby improving the applicator's ability to carry material at a time, meeting the use scenarios with large application amounts and high material carrying requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a front view of the applicator in this application;

[0021] FIG2 is a cross-sectional view of the applicator in the present application;

[0022] FIG3 is a top view of the applicator in the present application;

[0023] FIG4 is a right side view of the applicator in this application;

[0024] FIG5 is a left side view of the applicator in this application;

[0025] Figure 6 is an enlarged view of point A in Figure 1;

[0026] FIG7 is an enlarged view of point B in FIG3 ;

[0027] FIG8 is one of the structural diagrams of the villi in this application;

[0028] FIG9 is a second schematic diagram of the structure of the villi in this application;

[0029] In the figure: 10-installation portion, 20-application portion, 21-first surface, 22-second surface, 30-fluff. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in this application are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the following drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] As shown in Figures 1-9, an applicator is used to apply cosmetics, skin care products and / or medicines to hairless skin. The applicator includes a mounting portion 10 and an application portion 20 fixedly connected to the mounting portion 10. The application portion 20 is provided with at least two bristles 30. The mounting portion 10, the application portion 20 and the bristles 30 are an integral injection molded part made of a thermoplastic material. The Shore hardness of the thermoplastic material is greater than 65A.

[0034] The applicator in the present application is an integral injection molded part made of thermoplastic material, that is, the mounting portion 10, the application portion 20 and the bristles 30 are integrally formed. Compared with the traditional brush head process, the present applicator omits the flocking process, thereby simplifying the production process of the applicator, improving production efficiency and reducing manufacturing costs; and the applicator does not need to be coated with glue, so there is no risk of the bristles coming off or the glue dissolving in the cosmetic material. The hardness of the thermoplastic material in the present application is controlled to be above 65 Shore A. Compared with traditional bristles, the hardness of the bristles in the present application is improved, so the ability to protect the gaps between the bristles is correspondingly improved, thereby improving the applicator's ability to carry material at a time. The present application can be used for the application of skin care or makeup materials such as lip oil, lip gloss and lipstick.

[0035] Optionally, the Shore hardness of the thermoplastic material is 70A to 95A. Too much hardness of the hair 30 affects the makeup application effect, so in this application, the Shore hardness of the thermoplastic material is controlled between 70A and 95A, which not only greatly improves the applicator's ability to carry material in a single time, but also meets the makeup application requirements of the hair and improves the user's comfort when applying makeup.

[0036] Optionally, the thermoplastic material has a Shore hardness of 70A, 72A, 75A, 80A, 85A, 87A or 90A.

[0037] As shown in FIG2 , the first ends of the hairs 30 are fixedly connected to the application portion 20, and the second ends of the hairs 30 are free ends that extend outward from the application portion 20. The average diameter of the hairs 30 is 0.06 mm to 0.2 mm, and the length L of the hairs 30 is 0.6 mm to 2 mm. Alternatively, the average diameter of the hairs 30 is 0.08 mm to 0.12 mm, and optionally, the average diameter of the hairs 30 is 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, 0.11 mm, or 0.12 mm. The length L of the hairs 30 refers to the distance from the first end to the second end of the hairs 30. Alternatively, as shown in FIG8 and FIG9 , the length L of the hairs 30 is 0.75 mm to 1.6 mm. Optionally, the length L of the hair 30 is 0.75 mm, 0.8 mm, 0.9 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, or 2 mm. The hairs are relatively small in length and diameter, so they do not fall off during use, and the application effect is more uniform. When applying makeup, the hairs give a soft touch and do not prick the lips, thereby improving user satisfaction.

[0038] Optionally, the hairs 30 include cylindrical, polyhedral, truncated cone, or conical structures. As shown in Figures 1-5, in one possible embodiment, the applicator is sword-shaped, and the application portion 20 is tongue-shaped. The application portion 20 includes a first surface 21 and a second surface 22 disposed opposite each other, with the hairs 30 disposed on at least one of the first and second surfaces 21, 22. Optionally, the hairs 30 are disposed on both the first and second surfaces 21, 22. The first and second surfaces 21, 22 are flat, convex, or concave. In other possible embodiments, the shape of the application portion 20 includes a cone, a teardrop, a spoon, or the like.

[0039] In one possible embodiment, the cross-sectional area of ​​the first end of the fluff 30 is equal to the cross-sectional area of ​​the second end of the fluff 30, and at any two A and B on the fluff 30, the cross-sectional area of ​​the fluff 30 at point A is equal to the cross-sectional area of ​​the fluff 30 at point B; in another possible embodiment, the cross-sectional area of ​​the first end of the fluff 30 is greater than the cross-sectional area of ​​the second end of the fluff 30, and at any two A and B on the fluff 30, if the distance between A and the first end of the fluff is less than the distance between B and the first end of the fluff, then the cross-sectional area of ​​the fluff 30 at point A is greater than the cross-sectional area of ​​the fluff 30 at point B.

[0040] In one possible embodiment, the distance between two adjacent hairs 30 can vary, meaning the application portion 20 can be divided into different regions with varying hair densities. In another possible embodiment, the distance between two adjacent hairs 30 can be equal, as shown in Figures 1 and 6 , where the distance H between two adjacent hairs 30 is equal. This means that the hair density in each region of the application portion 20 is the same. The distance between two adjacent hairs 30 refers to the distance between the center points of their orthographic projections onto the surface of the application portion 20.

[0041] As shown in Figure 6, the distance H between two adjacent hairs 30 is 0.1mm to 0.6mm. Optionally, the distance between two adjacent hairs 30 is 0.1mm to 0.3mm. Optionally, the distance between two adjacent hairs 30 is 0.3mm to 0.6mm. Optionally, the distance H between two adjacent hairs 30 is 0.2mm to 0.5mm. Optionally, the distance between two adjacent hairs 30 is 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm or 0.30mm. By setting a suitable spacing between two adjacent hairs 30 and combining the appropriate hair hardness, the applicator can achieve the purpose of having an ultra-high single-time material delivery amount.

[0042] Optionally, the density of the hairs 30 on the smearing portion 20 is 2 hairs / mm 2 Up to 30 pieces / mm 2 That is, 2 to 30 hairs 30 are provided on each square millimeter of the application portion 20. Optionally, 2 to 15 hairs 30 are provided on each square millimeter of the application portion 20. Optionally, 5 to 12 hairs 30 are provided on each square millimeter of the application portion 20. Optionally, 10 to 20 hairs 30 are provided on each square millimeter of the application portion 20. The hairs on the application portion 20 can be designed to have an appropriate density as needed to meet different makeup needs.

[0043] The spatial shape of the hairs 30 is a designated cone, which is a cone or a truncated cone, with a taper ranging from 1:15 to 1:20. As shown in FIG8 , the taper of the designated cone is (D2-D1):L. In one possible embodiment, L is 1.2 mm, D1 is 0.08 mm, D2 is 0.15 mm, and the taper is 1:17.

[0044] The thermoplastic material includes at least one of a polyurethane thermoplastic elastomer, a styrene thermoplastic elastomer, and a polyester thermoplastic elastomer. Optionally, the applicator is made of a polyurethane thermoplastic elastomer (TPU), a styrene thermoplastic elastomer (TPES), or a polyester thermoplastic elastomer (TPEE). The applicator is formed using an injection mold, wherein the mold cavity is provided with a plurality of recessed micro-etched holes. The fine micro- and nano-scale etched holes are formed by laser etching into the mold cavity.

[0045] In some specific embodiments, the applicator is made of the following types of thermoplastic material:

[0046] TPE06751: belongs to styrene thermoplastic elastomer TPES, manufactured by DuPont in the United States;

[0047] TPU1070A: It belongs to polyurethane thermoplastic elastomer TPU, manufactured by Bayer, Germany;

[0048] HY5526: It is a polyester thermoplastic elastomer TPEE, manufactured by DuPont of the United States;

[0049] HY4056: It belongs to polyester thermoplastic elastomer TPEE, produced by DuPont of the United States;

[0050] HY3078: It is a polyester thermoplastic elastomer TPEE, manufactured by DuPont of the United States;

[0051] SK SKYPEL G140D: A polyester thermoplastic elastomer (TPEE), manufactured by SK Chemicals of South Korea.

[0052] SK SKYPEL G130D: A polyester thermoplastic elastomer (TPEE), manufactured by SK Chemicals of South Korea.

[0053] COPEC CC60CZ: It belongs to polyurethane thermoplastic elastomer TPU, and its manufacturer is Germany's JUPEC.

[0054] In a first possible embodiment, the thermoplastic material comprises the following raw material components in parts by weight: 20-40 parts polyurethane, 20-30 parts polyester fiber, 20-30 parts filler, 15-25 parts plasticizer, 0-5 parts colorant, 0-1 part UV stabilizer, and 0-1 part antioxidant. Specifically, the thermoplastic material is a polyurethane-based thermoplastic elastomer. The filler comprises at least one of calcium carbonate, talc, kaolin, mica, wollastonite, barium sulfate, carbon black, silica, and titanium dioxide. In a specific embodiment, the polyurethane-based thermoplastic elastomer comprises the following raw material components in parts by weight: 35 parts polyurethane, 28 parts polyester fiber, 25 parts calcium carbonate, 20 parts phthalate diester, 1 part colorant, 0.5 part UV stabilizer, and 0.5 part antioxidant.

[0055] In a second possible embodiment, the thermoplastic material includes the following raw material components in parts by weight: 15-30 parts styrene-ethylene-butylene-styrene block copolymer, 20-40 parts paraffin oil, 15-30 parts polypropylene, 15-30 parts calcium carbonate, and 0-3 parts auxiliary materials. Specifically, the thermoplastic material is a styrene-based thermoplastic elastomer, and the auxiliary materials are at least one of an antioxidant, a lubricant, and a light stabilizer. In a specific embodiment, the styrene-based thermoplastic elastomer includes the following raw material components in parts by weight: 25.5 parts styrene-ethylene-butylene-styrene block copolymer, 30 parts paraffin oil, 22 parts polypropylene, 21 parts calcium carbonate, and 1.5 parts antioxidant.

[0056] In a third possible embodiment, the thermoplastic material comprises the following raw material components in parts by weight: 95-99.5 parts of a polymer of dimethyl phthalate, 1,4-butanediol, and α-hydrogen-ω-hydroxy poly(1,4-butanediol) and 0.5-2 parts of an adhesive. Specifically, the thermoplastic material is a polyester thermoplastic elastomer, and the adhesive includes an acrylic adhesive, a rubber adhesive, a silicone adhesive, a urethane adhesive, an epoxy adhesive, or the like. In a specific embodiment, the polyester thermoplastic elastomer comprises the following raw material components in parts by weight: 99 parts of a polymer of dimethyl phthalate, 1,4-butanediol, and α-hydrogen-ω-hydroxy poly(1,4-butanediol) and 1 part of an adhesive.

[0057] In a fourth possible embodiment, the thermoplastic material includes the following raw material components by weight: 95-99.8 parts of a polymer of 1,3-dimethyl phthalate, 1,4-butanediol, 1,4-phthalic acid, and poly(1,4-butylene glycol); and 0.1-2 parts of an adhesive. Specifically, the thermoplastic material is a polyester thermoplastic elastomer. In a specific embodiment, the polyester thermoplastic elastomer includes the following raw material components by weight: 99.5 parts of a polymer of 1,3-dimethyl phthalate, 1,4-butanediol, 1,4-phthalic acid, and poly(1,4-butylene glycol); and 0.5 parts of an adhesive.

[0058] Optionally, the polyester thermoplastic elastomer includes at least one of SK SKYPEL G130D, SK SKYPEL G140D, SK SKYPEL G155D, and SK SKYPEL G163D. The main components of SK SKYPEL G130D include a polymer of dimethyl 1,4-phthalate, 1,4-butanediol, and α-hydro-ω-hydroxypoly(1,4-butanediol), and the main components of SK SKYPEL G140D include a polymer of dimethyl 1,3-phthalate, 1,4-butanediol, 1,4-phthalic acid, and poly(1,4-butanediol). SKYPEL is a trademark registered by SK Chemicals for its engineering thermoplastic elastomers. It is an ester-based thermoplastic elastomer (TPEE) with softness and elastic recovery similar to rubber, but superior to rubber in mechanical strength, heat resistance, and weather resistance. Without undergoing a vulcanization process, like conventional thermoplastic resins, this easily moldable resin is synthesized using conventional polyester methods. By appropriately adjusting the copolymerization ratio of the soft segment, TPEE is created to provide a flexible and mechanically suitable material for a variety of applications. TPEE is produced by copolymerizing 1,4-butylene terephthalate and polybutanol. Increasing the proportion of hard segments enhances physical rigidity and chemical stability, while increasing the proportion of soft segments improves flexibility and low-temperature performance.

[0059] G130D and G140D have similar flexibility, elasticity, and mechanical strength to rubber, but offer better heat and weather resistance than rubber. All SKYPEL grades are block copolymers composed of hard (crystalline) segments of polybutylene terephthalate and soft (non-crystalline) segments based on long-chain polyether glycol. Their properties are determined by the ratio of hard to soft segments.

[0060] Example: Table 1 lists the materials used in the examples and their hardness

[0061] Table 1:

[0062] The material of Example 2 includes the following raw material components in parts by weight: 20.5 parts of styrene-ethylene-butylene-styrene block copolymer (CAS 66070-58-4), 36 parts of paraffin oil, 21 parts of polypropylene, 21 parts of calcium carbonate, and 1.5 parts of antioxidant;

[0063] The material of Example 5 includes the following raw material components in parts by weight: 99.5 parts of a polymer of 1,4-dimethyl phthalate, 1,4-butanediol, and α-hydro-ω-hydroxypoly(1,4-butanediol) (CAS number 9078-71-1) and 0.5 parts of an adhesive;

[0064] The material of Example 6 includes the following raw material components in parts by weight: 99 parts of a polymer of 1,3-dimethyl phthalate, 1,4-butanediol, 1,4-phthalic acid and poly(1,4-butanediol) (CAS number is 9086-55-9) and 1 part of an adhesive.

[0065] The test results of the embodiments show that: the smaller the hardness of the material, the easier it is for the product to bend and deform, and the less material is carried. Controlling the Shore hardness of the material at 65A can ensure that the product is not easily deformed after molding, and the amount of material carried is large, which meets the usage scenarios with large application amount and high material requirements.

[0066] It should be noted that those skilled in the art may make a number of modifications and improvements without departing from the concept of this application, and these modifications and improvements are all within the scope of protection of this application. Therefore, the scope of protection of this patent application shall be based on the appended claims.

Claims

1. An applicator for applying cosmetics, skin care products and / or medicines on hairless skin, characterized in that: The applicator comprises a mounting portion (10) and an application portion (20) fixedly connected to the mounting portion (10), the application portion (20) being provided with at least two hairs (30), the mounting portion (10), the application portion (20) and the hairs (30) being an integral injection-molded part made of a thermoplastic material, the Shore hardness of the thermoplastic material being greater than 65A.

2. The applicator according to claim 1, characterized in that: The thermoplastic material has a Shore hardness of 70A to 95A.

3. The applicator according to claim 1, characterized in that: The thermoplastic material has a Shore hardness of 70A, 72A, 75A, 80A, 85A, 87A or 90A.

4. The applicator according to claim 1, characterized in that: The first end of the fluff (30) is fixedly connected to the application portion (20), the second end of the fluff (30) is a free end, and the second end of the fluff (30) extends toward the outside of the application portion (20), the average diameter of the fluff (30) is 0.06 mm to 0.2 mm, and the length L of the fluff (30) is 0.6 mm to 2 mm.

5. The applicator according to claim 1, characterized in that: The distance H between two adjacent hairs (30) is equal.

6. The applicator according to claim 1, characterized in that: The distance H between two adjacent hairs (30) is 0.1 mm to 0.6 mm.

7. The applicator according to claim 1, characterized in that: The density of the fluff (30) on the smearing portion (20) is 2 pieces / mm 2 Up to 30 pieces / mm 2 .

8. The applicator according to any one of claims 1 to 7, characterized in that: The spatial shape of the fluff (30) is a designated cone, which is a circular cone or a truncated circular cone, and the taper of the designated cone is in the range of 1:15 to 1:

20.

9. The applicator according to claim 8, characterized in that: The thermoplastic material comprises the following raw material components in parts by weight: 20-40 parts of polyurethane, 20-30 parts of polyester fiber, 20-30 parts of filler, 15-25 parts of plasticizer, 0-5 parts of colorant, 0-1 part of ultraviolet stabilizer and 0-1 part of antioxidant.

10. The applicator according to claim 8, characterized in that: The thermoplastic material comprises the following raw material components in parts by weight: 15-30 parts of styrene-ethylene-butylene-styrene block copolymer, 20-40 parts of paraffin oil, 15-30 parts of polypropylene, 15-30 parts of calcium carbonate and 0-3 parts of auxiliary materials.

11. The applicator according to claim 8, characterized in that: The thermoplastic material comprises the following raw material components in parts by weight: 95-99.5 parts of a polymer of 1,4-dimethyl phthalate, 1,4-butanediol and α-hydrogen-ω-hydroxy poly(1,4-butanediol) and 0.5-2 parts of an adhesive.

12. The applicator according to claim 8, characterized in that: The thermoplastic material comprises the following raw material components in parts by weight: 95-99.8 parts of a polymer of 1,3-dimethyl phthalate and 1,4-butanediol, 1,4-phthalic acid and poly(1,4-butanediol) and 0.1-2 parts of an adhesive.

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