Applicator

Abstract

The present invention relates to an applicator comprising a brush shaft, on which M rows of brush bristles are arranged. The brush bristles have a top surface and a bottom surface arranged relatively, the first end of the brush bristles being fixed to the brush shaft, the second end of the brush bristles being a free end and extending in a direction away from the brush shaft. Each row of brush bristles comprises N brush bristles, at least two brush bristles having a target point on their cross-section located on the same spiral, the first end of the brush bristles of the same row being located in the same axial direction of the brush shaft, where M≥2, N≥2, and M and N are integers. (Figure for abstract: Fig. 1)

Description

Title of the invention: Applicator Technical field

[0001] The present invention relates to the field of makeup techniques, and more particularly to an applicator. Prior art

[0002] Mascara is an eyelash cosmetic widely used in the beauty industry. When applying mascara to eyelashes, an applicator is required to apply the mascara. Existing applicators generally include a brush rod, on which brush bristles are arranged. The shapes of the bristles include regular shapes such as rectangles, cylinders, truncated cones, etc., and the bristles are arranged perpendicular to the brush rod. Therefore, the amount of material that the bristles can carry each time is small, requiring the user to repeatedly dip the applicator into the product to complete the application, making the operation very inconvenient and time-consuming. Presentation of the invention

[0003] In order to overcome these defects, the present application provides an applicator in which the brush bristles on the cross section have a target point located on a spiral line, thereby improving the ability of the applicator to transport the makeup material and improving the effect of the makeup.

[0004] The technical solution adopted by the present application to solve its technical problems is:

[0005] An applicator comprising a brush shaft, said brush shaft being equipped with M rows of brush bristles, the first end of said bristles being fixed to the brush shaft, the second end of said bristles being free and extending in a direction away from the brush shaft, each row of bristles comprising N bristles, at least two bristles in the cross-section having a target point located on the same spiral line, the first end of the same row of bristles being located in the same axial direction of the brush shaft, where M>2, N>2, and M and N are integers.

[0006] In one embodiment, the bristles located on the same spiral line comprise at least a first bristle and a second bristle, the first bristle belonging to the i-th row of bristles, the second bristle belonging to the j-th row of bristles.

[0007] In one embodiment, each bristle in the same row has a target point on its cross-section, this target point being located on the same spiral line.

[0008] In one embodiment, all of the bristles have a target point on their cross-section, this target point being located on the same spiral line.

[0009] In one embodiment, the applicator comprises at least two spiral lines, a portion of the bristles in the M rows having a first group of target points on their cross-section, this first group of target points being located on one of the spiral lines, and another portion of the bristles in the M rows having a second group of target points on their cross-section, this second group of target points being located on another spiral line.

[0010] In one embodiment, the different spiral lines have the same pitch.

[0011] In one embodiment, the pitch of the spiral lines is from 0.5mm to 1.5mm.

[0012] In one embodiment, the sides of the bristles comprise at least one surface curved and / or twisted surface.

[0013] In one embodiment, the applicator also includes a brush handle, the first end of the brush shaft being attached to the brush handle, the second end of the brush shaft being free, the second end of the bristles being angled toward the second end of the brush shaft.

[0014] In one embodiment, the angle of inclination [3 formed between the central axial section of the bristles P and the radial section of the brush rod Q is from 1° to 5°.

[0015] In one embodiment, the bristles of the same row are inclined toward the second end of the brush shaft at an identical angle.

[0016] In one embodiment, the bristles of adjacent rows are angled toward the second end of the brush shaft at different angles.

[0017] In one embodiment, the bristles are of blade-like structure, the shape of the upper surface of the bristles including at least one of the following structures: petal-like structure with small ends and large middle, polygonal structure, semi-petal structure, notched petal structure.

[0018] In one embodiment, the cross-sectional area of ​​the first end of the bristles is larger than that of the second end of the bristles.

[0019] In one embodiment, the bristles comprise two or more types of bristles, the different types of bristles having at least one of the following characteristics: hardness, color, shape, size.

[0020] In one embodiment, the bristles are two-color, three-color, or 3D-printed injection-molded plastic parts.

[0021] In one embodiment, the bristles are divided into H bristle types, with at least two types having different hardnesses, H>2, and H is an integer.

[0022] In one embodiment, bristles in the same row have the same hardness, while bristles in adjacent rows have different hardnesses.

[0023] In one embodiment, the line connecting the second ends of the bristles of the same row comprises at least one straight segment and / or a curve.

[0024] In one embodiment, the line connecting the second ends of the bristles of the same row comprises at least one of the following shapes: raised arc, recessed arc, back ridge, front ridge, multiple ridge, inverted V shape.

[0025] Advantages of the present application include:

[0026] 1) In the present application, the bristles of the same row are arranged in the same axial direction of the brush shaft, and at least two bristles have a target point on their cross-section located on the same spiral line, thereby increasing the amount of makeup material the bristles can carry, reducing the number of dips required for the applicator, and improving makeup efficiency.

[0027] 2) In the present application, the applicator comprises petal-shaped bristles, and the bristles are twisted along their central axis, which facilitates the adhesion of the makeup material to the bristles, and the twisted bristles increase the contact surface with hair, such as eyelashes, thereby facilitating the adhesion of the eyelashes to the bristles, allowing each dip to carry more material and facilitating the adhesion of the material to the eyelashes.

[0028] 3) In the present application, the bristles are arranged in an inclined manner on the stem. of the brush, not only to increase the amount of makeup material that the bristles can carry, but also to allow a certain degree of curling of the eyelashes during application, thereby improving the application effect.

[0029] 4) In the present application, the bristles of different hardnesses are arranged in Alternately, compared with bristles of a single hardness, they not only facilitate hair separation, but also improve the makeup effect, while traditional bristles made of high hardness materials have poor makeup effect, and those made of low hardness materials are not suitable for separating hair. Brief description of the drawings

[0030] [Fig.l] is a schematic view of the structure of an embodiment 1 of the present application;

[0031] [Fig.2] is another schematic view of the structure of embodiment 1 of the present application;

[0032] [Fig.3] is an enlarged view of part A of [Fig.2];

[0033] [Fig.4] is another schematic view of the structure of embodiment 1 of this request;

[0034] [Fig.5] is a sectional view along line BB of [Fig.4];

[0035] [Fig.6] is an enlarged view of part C of [Fig.5];

[0036] [Fig.7] is another schematic view of the structure of embodiment 1 of this request;

[0037] [Fig.8] is a schematic view of the structure of a hair of the present application;

[0038] [Fig.9] is another schematic view of the structure of a hair of the present request ;

[0039] [Fig. 10] is another schematic view of the structure of a hair of the present application;

[0040] [Fig. 11] is a schematic view of the structure of an embodiment 2 of the present application;

[0041] [Fig. 12] is another schematic view of the structure of embodiment 2 of the present application;

[0042] [Fig. 13] is an enlarged view of part D of [Fig. 12];

[0043] [Fig. 14] is another schematic view of the structure of embodiment 2 of this request;

[0044] [Fig. 15] is another schematic view of the structure of embodiment 2 of the present application;

[0045] [Fig. 16] is another schematic view of the structure of embodiment 2 of the present application;

[0046] [Fig. 17] is an enlarged view of part E of [Fig. 16];

[0047] [Fig. 18] is another schematic view of the structure of embodiment 2 of this request;

[0048] [Fig. 19] is a schematic view of the structure of an embodiment 3 of the present application;

[0049] [Fig.20] is another schematic view of the structure of embodiment 3 of the present application;

[0050] [Fig.21] is another schematic view of the structure of embodiment 3 of the present application;

[0051] [Fig.22] is another schematic view of the structure of embodiment 3 of the present application;

[0052] [Fig.23] is an enlarged view of part F of [Fig.20];

[0053] [Fig.24] is another schematic view of the structure of embodiment 3 of this request;

[0054] [Fig.25] is a schematic view of the structure of an embodiment 4 of the present application;

[0055] [Fig.26] is another schematic view of the structure of embodiment 4 of the present application;

[0056] [Fig.27] is another schematic view of the structure of embodiment 4 of the present application;

[0057] [Fig.28] is another schematic view of the structure of embodiment 4 of the present application;

[0058] [Fig.29] is an enlarged view of part G of [Fig.28];

[0059] [Fig.30] is another schematic view of the structure of embodiment 4 of the present application;

[0060] [Fig.31] is a schematic view of the structure of an embodiment 5 of the present application;

[0061] [Fig.32] is another schematic view of the structure of embodiment 5 of the present application;

[0062] [Fig.33] is another schematic view of the structure of embodiment 5 of the present application;

[0063] [Fig.34] is a sectional view along line HH of [Fig.33];

[0064] [Fig.35] is an enlarged view of part J of [Fig.34];

[0065] [Fig.36] is another schematic view of the structure of embodiment 5 of this request;

[0066] [Fig.37] is an enlarged view of part K of [Fig.31];

[0067] Reference signs: 10 - brush shaft, 20 - brush bristles, 21 - upper surface, 22 - lower surface, 30 - brush handle. Detailed description of the embodiments

[0068] The technical solutions of the embodiments of the present application will be clearly and completely described below in connection with the embodiments of the present application. Of course, the described embodiments are only a part of the embodiments of the present application, and not their entirety. Based on the embodiments of the present application, all other embodiments obtained without creative work by a person of ordinary skill in the art fall within the scope of protection of the present application.

[0069] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and in the aforementioned accompanying drawings are used to distinguish like objects and should not be used to describe a particular order or sequence. It should be understood that the data so used may, where appropriate, be interchanged so that the embodiments of the present application described herein may be implemented, for example, in an order other than those illustrated or described herein.Further, the terms "comprising" and "having", and any variation thereof, are intended to cover a non-exclusive inclusion, e.g., a process, method, system, product or apparatus comprising a series of steps or units shall not be limited to such steps or units, but may include other steps or units not explicitly listed or inherent in such processes, methods, products or equipment.

[0070] For ease of description, spatially related terms such as "above......" "over......", "on the upper surface of......", "above", etc., to describe the spatial location of a device or feature relative to other devices or features, as shown in the figure, the spatial location relative to other devices or features. It is understood that the term "relative in space" is intended to encompass different orientations in use or operation other than the orientation of the device shown in the drawings. For example, if the device is inverted in the accompanying drawings, a device described as being "above" or "on" other devices or configurations will later be positioned as being "below" or "on top" other devices or configurations, "or "beneath other devices or structures". Thus, the exemplary phrase "above......" may include "above......" and "below......". The device may also be positioned in other ways, such as 90 degree rotation or other orientations, and the relative spatial descriptions used herein are explained accordingly.

[0071] As illustrated in Figures 1-37, an applicator comprises a brush shaft 10, on which are arranged M rows of brush bristles 20, optionally, the bristles 20 having relatively arranged upper 21 and lower 22 surfaces, the first end of the bristles 20 being fixed to the brush shaft 10, the second end of the bristles 20 being free and extending in a direction away from the brush shaft 10, each row of bristles 20 comprising N bristles 20, at least two bristles 20 having a target point on their cross-section, this target point being located on the same spiral line, the first end of the same row of bristles 20 being located in the same axial direction of the brush shaft 10, where M>2, N>2, and M and N are integers. This means that the brush rod 10 comprises at least two rows of bristles 20, each row of bristles 20 comprising at least two bristles 20.The term "the first end of the same row of bristles 20 being located in the same axial direction of the brush shaft 10" means that the center point of the first end of the same row of bristles 20 is located in the same axial direction of the brush shaft 10, the term "at least two bristles 20 having a target point on their cross-section, this target point being located on the same spiral line" means that at least two bristles 20 have a target point on their cross-section located on the same virtual spiral line, the cross-section being a plane perpendicular to the center axis of the brush shaft. In this application, the same row of bristles is arranged in the same axial direction of the brush shaft 10, and at least two bristles have a target point on their cross-section located on the same spiral line, thereby increasing the amount of makeup material that the bristles can . wear, reducing the number of dips required for the applicator, and improving the effectiveness of the makeup.

[0072] The bristles 20 located on the same spiral line may be located in the same row or in different rows, optionally, the bristles 20 located on the same spiral line comprising at least a first bristle and a second bristle, the first bristle belonging to the i-th row of bristles, the second bristle belonging to the j-th row of bristles, i not being equal to j. This means that the bristles of two or more rows are located on the same spiral line.

[0073] In one possible embodiment, each bristle 20 in the same row has a target point on its cross-section, this target point being located on the same spiral line. This means that all bristles in the same row have a target point on their cross-section located on the same spiral line, the target points of bristles in different rows being able to be located on the same spiral line or on different spiral lines.

[0074] In another possible embodiment, all the bristles 20 have a target point on their cross-section, this target point being located on the same spiral line. This means that all the bristles on the shaft of the brush 10 have a target point on their cross-section located on the same spiral line, which not only increases the amount of makeup material that the bristles can carry, but can also improve the ability of the bristles to curl the eyelashes, thereby improving the effect of the makeup.

[0075] In another possible embodiment, the applicator comprises at least two spiral lines, a portion of the bristles in the M rows having a first group of target points on their cross-section, this first group of target points being located on one of the spiral lines, and another portion of the bristles in the M rows having a second group of target points on their cross-section, this second group of target points being located on another spiral line. This means that a portion of the bristles has a target point on their cross-section, these target points forming the first group of target points; another portion of the bristles has a target point on their cross-section, these target points forming the second group of target points.

[0076] The target points on the cross-section of the bristles 20 in the M rows are located on at least two different spiral lines. This means that in the M rows of bristles, at least two bristles have target points on their cross-section located on the spiral line A, and at least two other bristles have target points on their cross-section located on the spiral line B, the spiral lines A and B being different.

[0077] The different spiral lines may have different or identical pitches, optionally, the different spiral lines having the same pitch.

[0078] Optionally, the pitch of the spiral lines is 0.5mm to 1.5mm, with the spiral lines spiraling upwards in a clockwise or counterclockwise direction.

[0079] In one possible embodiment, the sides of the bristles 20 comprise at least one curved surface and / or one twisted surface. The sides of the bristles 20 refer to the upper surface 21 and the lower surface 22 of the bristles, wherein the upper surface 21 and / or the lower surface 22 of the bristles comprise a curved surface and / or a twisted surface, for example, the upper surface 21 of the bristles having a curved surface, a twisted surface, a curved surface and a twisted surface, or the lower surface 22 of the bristles having a curved surface, a twisted surface, a curved surface and a twisted surface, or the upper 21 and lower 22 surfaces of the bristles 20 both have a curved surface, a twisted surface, a curved surface and a twisted surface, i.e., the bristles 20 are twisted, which facilitates the adhesion of the makeup material, such as mascara, to the bristles 20,and the twisted bristles increase the contact area with hair, such as eyelashes, thereby facilitating the adhesion of the eyelashes to the bristles, allowing each dip to carry more material, and facilitating the adhesion of the material to the eyelashes. Since the applicator of this embodiment uses these bristles 20, the applicator having these bristles also has the corresponding technical effects. Optionally, the bristles 20 are fully twisted, or the first end of the bristles 20 is twisted, or the second end of the bristles 20 is twisted, or the middle portion of the bristles 20 is twisted, or both the first and second ends of the bristles 20 are twisted. It should be noted that the twisting positions of the bristles 20 mentioned above are given as examples, and this application does not limit the specific twisting positions of the bristles.

[0080] As illustrated in [Fig. 1], the applicator also comprises a brush handle 30, the first end of the brush shaft 10 being fixed to the brush handle 30, the second end of the brush shaft 10 being free, the second end of the bristles 20 being inclined towards the second end of the brush shaft 10. Arranging the bristles 20 at an angle with the brush shaft 10 not only increases the amount of makeup material that the bristles can carry, but also allows a certain degree of curling of the eyelashes during application, thereby improving the effect of the application.

[0081] As illustrated in Figures 31 and 37, the inclination angle [3 formed between the central axial section of the bristles P and the radial section of the brush shaft Q is 1° to 5°. The direction from the first end to the second end of the bristles is defined as the axial direction of the bristles, the central axial section of the bristles being the section along the axial direction of the bristles, and this section passes through the center line of the first end of the bristles, this center line being the center line around the circumferential direction of the brush shaft. This means that the line central part of the first end of the bristles is not located in the same circumferential direction of the brush shaft.

[0082] If a straight line A is drawn between the center point of the first end of the bristles and the midpoint of the second end of the bristles, then the angle between the straight line A and the center axis of the brush shaft is the angle of inclination of the bristles toward the second end of the brush shaft, simply called the angle of inclination of the bristles. The angle of inclination of the bristles in the same row may be the same or different, optionally, the angle of inclination of the bristles in the same row toward the second end of the brush shaft is the same. This means that the angle of inclination of all the bristles in the same row is the same.

[0083] The inclination angle of the bristles of different rows may be the same or different, optionally, the inclination angle of the bristles of the adjacent rows toward the second end of the brush shaft is different. Optionally, the inclination angle of the bristles of different rows is different, or the bristles of the M rows are divided into P groups, each group having the same inclination angle, but the inclination angle between the different groups is different, P>2, for example, if the brush shaft has 9 rows of bristles, the 9 rows of bristles are divided into 3 groups, 3 rows of bristles per group, and the inclination angle of the bristles between the 3 groups is different, i.e., the bristles have three different inclination angles.

[0084] As illustrated in [Fig.4], the bristles 20 have relatively arranged upper 21 and lower 22 surfaces, the bristles 20 comprising bristles with upper surfaces 21 of different sizes, the bristles with a large upper surface 21 being defined as large bristles, and those with a small upper surface 21 being defined as small bristles, then the angle of inclination of the large bristles toward the second end of the brush shaft is less than that of the small bristles toward the second end of the brush shaft.Large bristles and small bristles are defined by comparing two types of bristles having different top surfaces, in this embodiment, by arranging bristles of different sizes on the brush shaft and setting different inclination angles for the bristles of different sizes, thereby utilizing the combination of bristles with different inclination angles to grip the eyelashes and improve the application effect.

[0085] In one possible embodiment, two adjacent rows of bristles 20 are defined respectively as bristles A and bristles B, the bristles A and the bristles B being arranged alternately, the upper surface of the bristles A being larger than that of the bristles B, all the bristles A having the same angle of inclination and the same upper surface, all the bristles B also having the same angle of inclination and the same upper surface, the angle of inclination of the bristles A towards the second end of the brush shaft being less than that of the bristles B towards the second end of the brush shaft brush. In this embodiment, by arranging two types of bristles alternately, and having bristles with a large top surface with a small inclination angle and bristles with a small top surface with a large inclination angle, this is advantageous during application, using the combination of two bristles with different inclination angles to grip the eyelashes and improve the application effect.

[0086] The bristles 20 are of blade-like structure, the shape of the upper surface of the bristles including at least one of the following structures: petal-like structure with small ends and large middle, polygonal structure, semi-petal structure, notched petal structure. Optionally, the bristles 20 are of thin sheet-like structure, and the same shape is used for the upper 21 and lower 22 surfaces of the bristles, the bristles 20 connecting the upper 21 and lower 22 surfaces by their sides. In a first possible embodiment, as illustrated in [Fig.10], the upper surface of the bristles is petal-shaped with the ends small and the middle large, the second end being smaller than the first, the line connecting the first and second ends being a curved line, the widest part being close to the second end of the bristles, in a second possible embodiment, as illustrated in [Fig. 36], the difference from the first embodiment is that the widest part is close to the first end of the bristles, in a third possible embodiment, the difference from the first embodiment is that the widest part is equidistant from the first and second ends; in a fourth possible embodiment, the bristles of this embodiment are half of the bristles along the central axial section of the first embodiment; in a fifth possible embodiment, as illustrated in [Fig.22], the bristles of this embodiment are half of the bristles along the central axial section of the second embodiment; in a sixth possible embodiment, the bristles of this embodiment are half of the bristles along the central axial section of the third embodiment; that is, the upper surfaces of the bristles of the fourth to sixth embodiments are arc-shaped; in a seventh possible embodiment, the bristles of this embodiment are half-petal-shaped, and the upper surface of the bristles 20 has a multi-ridge structure; in an eighth possible embodiment, as illustrated in [Fig. 14], the upper surface of the bristles is polygonal in structure, for example, pentagonal, hexagonal, heptagonal, etc.; in a ninth possible embodiment, as illustrated in [Fig.4], the cross-section of the bristles is of notched petal structure, that is, the upper surface of the bristles has one, two or more notches, the bristle structure of this embodiment being obtainable by machining notches on the bristles of the first to eighth embodiments.

[0087] The cross-sectional area of ​​the first end of the bristles 20 is larger than that of the second end of the bristles 20. The cross-sectional area of ​​the first end of the bristles 20 refers to the surface where the bristles 20 are connected to the shaft of the brush 10, the cross-sectional area of ​​the second end of the bristles 20 refers to the surface of the free side of the bristles. As illustrated in [Fig. 18], the first end of the bristles is thick, the second end is thin, optionally, the bristles gradually thin from the first to the second end, that is, taking any two points between the first and second ends, respectively D and E, point D being closer to the first end than point E, then the longitudinal cross-sectional area of ​​the bristles at point D is larger than that at point E, the longitudinal cross-sectional area being a section parallel to the first end.

[0088] The bristles 20 comprise two or more types of bristles, the different types of bristles 20 having at least one of the following characteristics: hardness, color, shape, size. This means that the bristles 20 can be made from resin materials of different hardnesses and / or colors, the bristles can also be designed in different shapes and / or sizes.

[0089] The bristles 20 are plastic parts that are injection molded in two or more colors, three colors, or made by 3D printing. When the bristles are made from two or more different types of plastic materials, they can be made by two or more different types of injection molding, three colors, or 3D printing; of course, when all the bristles are made from the same plastic material, the bristles can be made by single-color injection molding or 3D printing.

[0090] The bristles 20 are divided into H types of bristles 20, with at least two types having different hardnesses, H>2, and H is an integer. This means that the bristles 20 can be made from two or more different types of plastic materials, or from the same type of plastic material but with different hardnesses.

[0091] Optionally, the bristles of the same row 20 have the same hardness, while the bristles of the adjacent rows have different hardnesses. The bristles of the two adjacent rows 20 are defined respectively as F bristles and H bristles, the F bristles having a higher hardness than the H bristles, the F and H bristles being arranged alternately, generally the high-hardness bristles facilitating the separation of hair, while the low-hardness bristles facilitate the application of makeup. In this embodiment, by arranging bristles of different hardnesses alternately, compared with bristles of a single hardness, they not only facilitate the separation of hair, but also improve the effect of makeup, while traditional bristles made from high-hardness materials have a poor makeup effect, and those made from low-hardness materials are not suitable for separating hair.

[0092] The Shore D hardness of the bristles 20 is from 35 to 82, the modulus of elasticity is from 35 MPa, such as DuPont's Hytrel® 35 shore D to 1180 MPa, such as DuPont's Hytrel® 82 shore D. Optionally, the Shore D hardness of the bristles 20 is from 45 to 72, the modulus of elasticity is from 95 MPa, such as DuPont's Hytrel® 45 shore D to 570 MPa, such as DuPont's Hytrel® 72 shore D, optionally, the Shore D hardness of the bristles 20 is from 55 to 63, the modulus of elasticity is from 200 MPa, such as DuPont's Hytrel® 55 shore D to 280 MPa, such as DuPont's Hytrel® 63 shore D. In one possible embodiment, the bristles 20 comprise a first undercoat and a second undercoat, the first undercoat having a Shore D hardness of 63, and the second undercoat having a Shore D hardness of 47.

[0093] The bristle material 20 includes silicone elastomers, thermoplastic elastomers such as styrene-ethylene-butylene-styrene (SBS) block copolymer, EVA vinyl elastomer, Hytrel® thermoplastic polyester elastomer from DuPont, Pellethane® thermoplastic polyurethane elastomer produced by Dow Plastics, or one of the nitrile and ethylene-propylene-diene rubber (EPDM) elastomers.

[0094] The line connecting the second ends of the bristles 20 of the same row comprises at least one straight segment and / or one curve. The line connecting the second ends of the bristles 20 is the line connecting the center points of the second ends of the bristles. The line connecting the second ends of the bristles 20 comprises at least one curve, or at least two straight segments, or at least one straight segment and at least one curve. This means that in the same row, at least two bristles 20 have different heights. The line connecting the second ends of the bristles 20 of the same row comprises at least one of the following shapes: raised arc, recessed arc, back ridge, front ridge, multiple ridge and inverted V shape.

[0095] Embodiment 1: As shown in Figures 1 to 6, the brush shaft 10 is connected to the brush handle 30, and the brush shaft 10 is equipped with 8 rows of brush bristles 20. The brush bristles 20 have an upper surface 21 and a lower surface 22 arranged relatively. On the section of all the brush bristles 20, a target point is located on the same spiral line. The bristles in the same row have the same shape but different heights, and the structures of adjacent bristles 20 are different. The 8 rows of brush bristles 20 are divided into two types, respectively defined as C bristles and D bristles, arranged alternately, as shown in [Fig. 4]. The upper surface of the C bristles has a notched petal structure, with the notch located at the first end of the C bristles, as shown in [Fig. 2].The connecting line at the second end of the same row of bristles C forms a raised arc, also referenced in [Fig.4]. The upper surface of bristles D has a structure of . petal with two notches, both located in the middle of the bristles D, as shown in [Fig.5]. The connecting line at the second end of the same row of bristles D comprises a recessed arc and a straight line segment, as shown in [Fig.4]. The angle between two adjacent rows of bristles of the brush 20 is a, where a is 45°.

[0096] Embodiment 2: As shown in Figures 11 to 18, the brush rod 10 is connected to the brush handle 30, and the brush rod 10 is equipped with 12 rows of brush bristles 20. The brush bristles 20 have an upper surface 21 and a lower surface 22 arranged relatively. On the section of all the brush bristles 20, a target point is located on the same spiral line. The bristles in the same row have the same shape but different heights, and the structures of adjacent bristles 20 are different. The 12 rows of brush bristles 20 are divided into three types, respectively defined as C bristles, D bristles, and E bristles. The upper surface of the C bristles is the smallest, while that of the E bristles is the largest. There are 6 rows of C hairs, and 3 rows each for D and E hairs, arranged alternately, as shown in Figures 14 and 18.The upper surface of bristles C is polygonal, as shown in [Fig. 16]. The connecting line at the second end of the same row of bristles C comprises three straight line segments, the middle segment being parallel to the axis of the brush shaft 10, and the end segments being arranged in an inclined manner, also referenced in Figures 14 and 18. The upper surface of bristles D has a petal-shaped structure, and that of bristles E is pentagonal, as shown in [Fig. 12]. The connecting line at the second end of the same row of bristles D comprises a recessed arc and a straight line segment, and that of bristles E forms a raised arc, as shown in [Fig. 14]. The angle between two adjacent rows of bristles of brush 20 is b, where b is 30°.

[0097] Embodiment example 3: As shown in Figures 19 to 24, the brush rod 10 is connected to the brush handle 30, and the brush rod 10 is equipped with 12 rows of brush bristles 20. The 12 rows of brush bristles 20 are divided into 6 pairs, each pair being arranged back to back. The brush bristles 20 have an upper surface 21 and a lower surface 22 arranged relatively. On the section of all the brush bristles 20, a target point is located on the same spiral line. The bristles in the same row have the same shape but different heights, and the structures of adjacent bristles 20 are different. The 12 rows of bristles of the brush 20 are divided into two types, defined respectively as bristles C and bristles D, arranged alternately, as shown in Figures 22 and 24. The upper surface of the bristles C has a raised semi-petal structure, as illustrated in Figures 20 and 24.The connection line to the second. end of the same row of bristles C forms a raised arc, also referenced in Figures 22 and 24. The upper surface of the bristles D has a recessed semi-petal structure, as shown in Figures 19 and 24. The connecting line at the second end of the same row of bristles D comprises a recessed arc and a straight line segment, as shown in [Fig.22]. The angle between two adjacent rows of bristles of the brush 20 is c, where c is 30°, this angle being that between the planes of the adjacent bristles.

[0098] Embodiment 4: As illustrated in Figures 25 to 30, this embodiment differs from embodiment 3 in that the brush shaft is equipped with 10 rows of brush bristles 20, divided into 5 pairs, as shown in [Fig. 30]. The angle between two adjacent rows of brush bristles 20 is d, where d is 36°.

[0099] Embodiment 5: As shown in Figures 31 to 37, the brush rod 10 is connected to the brush handle 30, and the brush rod 10 is equipped with 8 rows of brush bristles 20. The brush bristles 20 have an upper surface 21 and a lower surface 22 arranged relatively. On the section of all the brush bristles 20, a target point is located on the same spiral line. All the bristles have the same shape but different heights. The 8 rows of bristles of the brush 20 are divided into two types, defined respectively as bristles C and bristles D, arranged alternately, as shown in Figures 33 and 36. The upper surfaces of bristles C and D are both petal-shaped, the upper surface of bristles C being smaller than that of bristles D at the same radial location on the shaft of the brush 10, as shown in Figures 32 and 36.The connecting line at the second end of the same row of bristles C forms a raised arc, as shown in Figures 34 and 36. The connecting line at the second end of the same row of bristles D comprises a recessed arc and a straight line segment, as shown in [Fig.33]. The angle between two adjacent rows of bristles of the brush 20 is e, where e is 45°.

[0100] It should be noted that for ordinary persons in this technical field, various modifications and improvements can be made without departing from the spirit of this application, and these are also covered by the scope of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

Claims

1. An applicator, characterized in that it comprises a brush shaft (10), said brush shaft (10) being provided with M rows of brush bristles (20), the first end of said brush bristles (20) being fixed to said brush shaft (10), the second end of said brush bristles (20) being free and extending in a direction away from said brush shaft (10), each row of said brush bristles (20) comprising N brush bristles (20), with at least two of said brush bristles (20) in the cross-section having a target point, said target point lying on the same spiral line, the first end of the same row of said brush bristles (20) being located in the same axial direction as said brush shaft (10), where M>2, N>2, and M and N are integers.

2. The applicator according to claim 1, characterized in that the bristles of the brush (20) located on the same spiral line comprise at least a first brush bristle and a second brush bristle, the first brush bristle belonging to the i-th row of brush bristles, the second brush bristle belonging to the j-th row of brush bristles.

3. The applicator according to claim 1, characterized in that each brush bristle (20) in the same row has a target point on its cross-section, said target point lying on the same spiral line.

4. The applicator according to claim 1, characterized in that all the brush bristles (20) have a target point on their cross-section, said target point lying on the same spiral line.

5. The applicator according to claim 1, characterized in that it comprises at least two spiral lines, a portion of the brush bristles (20) in the M rows having a first set of target points on their cross-section, said first set of target points lying on one of the spiral lines, and another portion of the brush bristles (20) in the M rows having a second set of target points on their cross-section, said second set of target points lying on another spiral line.

6. The applicator according to claim 5, characterized in that the different spiral lines have the same pitch.

7. The applicator according to claim 1, characterized in that the pitch of the spiral lines is from 0.5mm to 1.5mm.

8. The applicator according to claim 1, characterized in that the sides of the bristles of the brush (20) comprise at least one curved surface and / or one twisted surface.

9. The applicator according to claim 1, characterized in that it also comprises a brush handle (30), the first end of the brush shaft (10) being fixed to said brush handle (30), the second end of the brush shaft (10) being free, the second end of the brush bristles (20) being inclined towards the second end of the brush shaft (10).

10. The applicator according to claim 9, characterized in that the angle of inclination [3 formed between the central axial section P of the bristles of the brush (20) and the radial section Q of the rod of the brush (10) is 1°<[3<5°.

11. The applicator of claim 9, characterized in that all the brush bristles (20) in the same row are inclined at the same angle towards the second end of the brush shaft (10).

12. The applicator according to claim 11, characterized in that the angles of inclination of the brush bristles (20) of the adjacent rows towards the second end of the brush shaft (10) are different.

13. The applicator according to claim 1, characterized in that the brush bristles (20) are of blade-like structure, the shape of the upper surface of said brush bristles (20) comprising at least one of the following structures: petal-like structure with smaller ends and larger middle, polygonal structure, semi-petal structure, notched petal structure.

14. The applicator according to claim 13, characterized in that the surface area of ​​the section of the first end of the bristles of the brush (20) is larger than that of the second end of the bristles of the brush (20).

15. The applicator according to any one of claims 1 to 14, characterized in that the bristles of the brush (20) comprise two or more types of brush bristles, the different types of bristles of the brush (20) having different characteristics, the characteristics of the bristles of the brush (20) comprising at least one of the following: hardness, color, shape, size.

16. The applicator according to claim 15, characterized in that the bristles of the brush (20) are plastic parts formed by two-color injection, three-color injection or 3D printing.

17. The applicator according to claim 16, characterized in that the bristles of the brush (20) are divided into H types of bristles of the brush (20), with at least two types having different hardnesses, H>2, and H being an integer.

18. The applicator according to claim 17, characterized in that the bristles of the brush (20) of the same row have the same hardness, and the bristles of the brush (20) of the adjacent rows have different hardnesses.

19. The applicator according to any one of claims 1 to 14, characterized in that the connection line of the second end of the bristles of the brush (20) in the same row comprises at least one of the following: straight and curved segment.

20. The applicator according to claim 19, characterized in that the connecting line of the second end of the bristles of the brush (20) in the same row comprises at least one of the following: raised arc, recessed arc, rear ridge, front ridge, multiple ridge, inverted V shape.

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