Applicator

Abstract

The present application relates to an applicator, comprising a brush rod. M rows of bristles are arranged on the brush rod; each bristle has an upper surface and a lower surface which are oppositely arranged; first ends of the bristles are fixedly connected to the brush rod; second ends of the bristles are free ends, and the second ends of the bristles extend in a direction away from the brush rod; each row of bristles comprises N bristles; on the cross sections of at least two of the bristles, there is a target point, which is located on the same spiral line; the first ends of the bristles in the same row are located in the same axis direction of the brush rod, wherein M≥2, N≥2, and both M and N are integers. The bristles on the applicator of the present application have a target point located on the spiral line, thereby increasing the amount of makeup material carried by the applicator, and improving the makeup effect.

Description

applicator Technical Field

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

[0002] Mascara is an eyelash cosmetic widely used in the beauty industry. When applying mascara to eyelashes, an applicator for applying mascara is required. Existing applicators generally include a brush rod with bristles. The shapes of the bristles include regular rectangular, cylindrical, truncated cone, etc., and the bristles are arranged perpendicular to the brush rod. Therefore, the amount of material applied to the bristles at a time is small. When applying makeup, the user needs to dip the material multiple times to complete the makeup operation, which is very inconvenient and takes a long time.

[0003] Summary of the Invention

[0004] In order to overcome the above-mentioned defects, the present application provides an applicator, in which a target point on the cross section of the bristles of the applicator is located on a spiral line, thereby increasing the amount of cosmetic material carried by the applicator and improving the cosmetic effect.

[0005] The technical solution adopted by this application to solve its technical problems is:

[0006] A brush applicator includes a brush rod, wherein the brush rod is provided with M rows of bristles, the first ends of the bristles are fixedly connected to the brush rod, the second ends of the bristles are free ends, and the second ends of the bristles extend in a direction away from the brush rod, each row of the bristles includes N bristles, and there is a target point on the cross section of at least two of the bristles, the target point is located on the same spiral line, and the first ends of the bristles in the same row are located in the same axial direction of the brush rod, wherein M ≥ 2, N ≥ 2, and M and N are both integers.

[0007] Optionally, the bristles on the same spiral line include at least first bristles and second bristles, the first bristles belong to the i-th row of bristles, and the second bristles belong to the j-th row of bristles.

[0008] Optionally, there is a target point on the cross section of each of the bristles in the same row, and the target point is located on the same spiral line.

[0009] Optionally, there is a target point on the cross section of all the bristles, and the target point is located on the same spiral line.

[0010] Optionally, at least two spiral lines are included, and a first group of target points exists on the cross section of a part of the bristles in the M rows, and the first group of target points is located on one of the spiral lines; a second group of target points exists on the cross section of another part of the bristles in the M rows, and the second group of target points is located on the other spiral line.

[0011] Optionally, the pitches of the different helical lines are the same.

[0012] Optionally, the pitch of the helix is ​​0.5 mm to 1.5 mm.

[0013] Optionally, the side surface of the bristles includes at least one curved surface and / or twisted surface.

[0014] Optionally, a brush handle is further included, wherein the first end of the brush rod is fixedly connected to the brush handle, the second end of the brush rod is a free end, and the second ends of the bristles are inclined toward the second end of the brush rod.

[0015] Optionally, an inclined angle formed between the central axial section P of the bristles and the radial section Q of the brush rod is β, 1°<β<5°.

[0016] Optionally, the bristles in the same row have the same inclination angle toward the second end of the brush rod.

[0017] Optionally, the bristles in two adjacent rows have different inclination angles toward the second end of the brush rod.

[0018] Optionally, the bristles are of a sheet-like structure, and the shape of the upper surface of the bristles includes at least one of a petal-like structure with small ends and a large middle, a polygonal structure, a half-petal-like structure, and a notched petal-like structure.

[0019] Optionally, the cross-sectional area of ​​the first end of the bristle is larger than the cross-sectional area of ​​the second end of the bristle.

[0020] Optionally, the bristles include two or more types of bristles, and the bristles of different types have different characteristics, and the characteristics of the bristles include at least one of hardness, color, shape, and size.

[0021] Optionally, the bristles are double-color injection-molded plastic parts, three-color injection-molded plastic parts, or 3D-printed plastic parts.

[0022] Optionally, the bristles are divided into H types of bristles, and the H types of bristles include at least two bristles with different hardnesses, and H is ≥ 2, and H is an integer.

[0023] Optionally, the bristles in the same row have the same hardness, and the bristles in two adjacent rows have different hardnesses.

[0024] Optionally, the line connecting the second ends of the bristles in the same row includes at least one of a straight line segment and a curve segment.

[0025] Optionally, the connecting line of the second ends of the bristles in the same row includes at least one of a convex arc shape, a concave arc shape, a tailing peak shape, a leading peak shape, a multi-peak shape and an inverted V shape.

[0026] The beneficial effects of this application include:

[0027] 1) In this application, the same row of bristles are arranged along the same axial direction of the brush rod, and there is a target point on the cross section of at least two bristles located on the same spiral line, thereby increasing the amount of cosmetic material loaded by the bristles, reducing the number of times the applicator dips the material, and improving the efficiency of makeup.

[0028] 2) The applicator in the present application includes petal-shaped bristles, and the bristles are twisted axially along their own axis, making it easier for cosmetic materials to adhere to the bristles, and the twisted bristles increase the contact area with the hair, making it easier to fit the eyelashes. Therefore, the applicator in the present application has the advantages of making it easier for eyelashes to adhere to the bristles, being able to attach more material each time the material is dipped, and being easier to adhere to the eyelashes.

[0029] 3) In the present application, the bristles are arranged obliquely on the brush rod. The oblique arrangement of the bristles and the brush rod can not only increase the loading capacity of the cosmetic material between the bristles, but also provide a certain curling ability to the eyelashes when applying hair such as eyelashes, thereby improving the application effect.

[0030] 4) In this application, the bristles of different hardness are arranged at intervals, which is not only easier to separate the hair than bristles of a single hardness, but also has a better makeup effect. Traditional bristles of a single hardness, if made of a material with a high hardness, have a poor makeup effect, and if made of a material with a low hardness, it is not easy to separate the hair. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a schematic diagram of the structure of Example 1 in this application;

[0032] FIG2 is a second structural diagram of Example 1 in this application;

[0033] Figure 3 is an enlarged view of point A in Figure 2;

[0034] FIG4 is a third structural diagram of Example 1 in this application;

[0035] FIG5 is a cross-sectional view taken along line BB in FIG4 ;

[0036] Figure 6 is an enlarged view of point C in Figure 5;

[0037] FIG7 is a fourth structural diagram of Example 1 in this application;

[0038] FIG8 is one of the structural diagrams of the bristles in this application;

[0039] FIG9 is a second structural diagram of the bristles in this application;

[0040] FIG10 is a second structural diagram of the bristles in this application;

[0041] FIG11 is a schematic diagram of the structure of Example 2 of the present application;

[0042] FIG12 is a second structural diagram of Example 2 of the present application;

[0043] FIG13 is an enlarged view of point D in FIG12;

[0044] FIG14 is a third structural diagram of Example 2 of the present application;

[0045] FIG15 is a fourth structural diagram of Example 2 of the present application;

[0046] FIG16 is a fifth structural diagram of Example 2 of the present application;

[0047] FIG17 is an enlarged view of point E in FIG16 ;

[0048] FIG18 is a sixth structural diagram of Example 2 of the present application;

[0049] FIG19 is a schematic diagram of the structure of Example 3 of the present application;

[0050] FIG20 is a second structural diagram of Example 3 of the present application;

[0051] FIG21 is a third structural diagram of Example 3 in this application;

[0052] FIG22 is a fourth structural diagram of Example 3 of the present application;

[0053] FIG23 is an enlarged view of point F in FIG20 ;

[0054] FIG24 is a fifth structural diagram of Example 3 of the present application;

[0055] FIG25 is a schematic diagram of the structure of Example 4 of the present application;

[0056] FIG26 is a second structural diagram of Example 4 in this application;

[0057] FIG27 is a third structural diagram of Example 4 in this application;

[0058] FIG28 is a fourth structural diagram of Example 4 in this application;

[0059] FIG29 is an enlarged view of point G in FIG28;

[0060] FIG30 is a fifth structural diagram of Example 4 of the present application;

[0061] FIG31 is a schematic diagram of the structure of Example 5 of the present application;

[0062] FIG32 is a second structural diagram of Example 5 of the present application;

[0063] FIG33 is a third structural diagram of Example 5 of the present application;

[0064] FIG34 is a cross-sectional view taken along HH in FIG33;

[0065] FIG35 is an enlarged view of point J in FIG34 ;

[0066] FIG36 is a fifth structural diagram of Example 5 of the present application;

[0067] FIG37 is an enlarged view of point K in FIG31 ;

[0068] In the figure: 10-brush rod, 20-brush bristles, 21-upper surface, 22-lower surface, 30-brush handle. DETAILED DESCRIPTION

[0069] 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.

[0070] 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.

[0071] 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.

[0072] As shown in FIG1-37 , an applicator includes a brush rod 10 having M rows of bristles 20 disposed thereon. Optionally, the bristles 20 have an upper surface 21 and a lower surface 22 arranged opposite each other. The first ends of the bristles 20 are fixedly connected to the brush rod 10, and the second ends of the bristles 20 are free ends, extending in a direction away from the brush rod 10. Each row of bristles 20 includes N bristles 20. There is a target point on the cross section of at least two bristles 20, and the target points are located on the same spiral line. The first ends of the bristles 20 in the same row are located in the same axial direction of the brush rod 10, wherein M ≥ 2, N ≥ 2, and both M and N are integers. That is, at least two rows of bristles 20 are provided on the brush rod 10, and each row of bristles 20 has at least two bristles 20. The phrase "the first ends of the bristles 20 in the same row are located along the same axis of the brush rod 10" means that the center points of the first ends of the bristles 20 in the same row are located along the same axis of the brush rod 10. The phrase "there is a target point on the cross section of at least two bristles 20, and the target points are located on the same spiral line" means that there is a target point on the cross section of at least two bristles 20 located on the same virtual spiral line. The cross section refers to a plane perpendicular to the axis of the brush rod. In this application, the bristles in the same row are arranged along the same axis of the brush rod 10, and the target point on the cross section of at least two bristles is located on the same spiral line. This increases the amount of cosmetic material that can be loaded onto the bristles, reduces the number of times the applicator is dipped into the material, and improves cosmetic application efficiency.

[0073] The bristles 20 on the same spiral line can be in the same row or in different rows. Optionally, the bristles 20 on the same spiral line include at least first bristles and second bristles, where the first bristles belong to the i-th row of bristles and the second bristles belong to the j-th row of bristles, where i is not equal to j. That is, parts of the bristles in two or more rows are located on the same spiral line.

[0074] In one possible embodiment, each bristle 20 in the same row has a target point on its cross section, and the target points are located on the same spiral line. That is, all bristles in the same row have a target point on their cross sections that is located on the same spiral line, while target points on bristles in different rows may be located on the same spiral line or on different spiral lines.

[0075] In another possible embodiment, all the bristles 20 have a target point on their cross-sections, and the target point is located on the same spiral line. That is, all the bristles on the brush rod 10 have a target point on the same spiral line. This not only increases the amount of cosmetic material that can be loaded onto the bristles, but also improves the ability of the bristles to curl the eyelashes, thereby improving the makeup application effect.

[0076] In another possible embodiment, the applicator includes at least two spirals. A first set of target points is present on the cross-section of a portion of the bristles in the M rows of bristles 20. The first set of target points is located on one of the spirals. A second set of target points is present on the cross-section of another portion of the bristles in the M rows of bristles 20. The second set of target points is located on the other spiral. That is, each bristle in the cross-section of one portion of the bristles has a target point, and these target points constitute the first set of target points. Each bristle in the cross-section of the other portion of the bristles has a target point, and these target points constitute the second set of target points.

[0077] The target points on the cross-section of the M rows of bristles 20 are located on at least two different spirals. That is, in the M rows of bristles, the target points on the cross-section of at least two bristles are located on spiral A, and the target points on the cross-section of at least two other bristles are located on spiral B, and spiral A and spiral B are different spirals.

[0078] The pitches of different helices may be different or the same. Optionally, the pitches of different helices are the same.

[0079] Optionally, the pitch of the helix is ​​0.5 mm to 1.5 mm, and the helix rises in a clockwise direction or a counterclockwise direction.

[0080] In one possible embodiment, the side surface of the bristles 20 includes at least one curved surface and / or a twisted surface. The side surface of the bristles 20 refers to the upper surface 21 and the lower surface 22 of the bristles, and the upper surface 21 and / or the lower surface 22 of the bristles 20 include a curved surface and / or a twisted surface, such as the upper surface 21 of the bristles has a curved surface, a twisted surface, a curved surface and a twisted surface, or the lower surface 22 of the bristles has a curved surface, a twisted surface, a curved surface and a twisted surface, or the upper surface 21 and the lower surface 22 of the bristles 20 both have a curved surface, a twisted surface, a curved surface and a twisted surface, that is, the bristles 20 are twisted, making it easier for cosmetic materials, such as mascara, to adhere to the bristles 20, and the twisted bristles 20 increase the contact area with hair, such as eyelashes, and are easier to fit the eyelashes, which has the advantages of making it easier for eyelashes to adhere to the bristles 20, being able to adhere to more materials each time the material is dipped, and being easier to adhere to the eyelashes. Since the applicator in this embodiment uses the bristles 20, the applicator having the bristles also has the corresponding technical effect. Optionally, the bristles 20 are twisted throughout, or the first end of the bristles 20 is twisted, or the second end of the bristles 20 is twisted, or the middle of the bristles 20 is twisted, or the first and second ends of the bristles 20 are twisted. It should be noted that the twisted positions of the bristles 20 are illustrative only, and this application does not limit the specific twisted positions of the bristles.

[0081] As shown in FIG1 , the applicator further includes a brush handle 30. The first end of the brush rod 10 is fixedly connected to the brush handle 30, the second end of the brush rod 10 is free, and the second ends of the bristles 20 are inclined toward the second end of the brush rod 10. The inclined arrangement of the bristles 20 relative to the brush rod 10 not only increases the amount of cosmetic material that can be loaded between the bristles 20 but also provides a certain degree of curling when applying to hair such as eyelashes, thereby improving the application effect.

[0082] As shown in Figures 31 and 37 , the angle β formed between the central axial cross-section P of the bristles 20 and the radial cross-section Q of the brush shaft 10 is 1° < β < 5°. The direction from the first end to the second end of the bristles 20 is defined as the axial direction of the bristles. The central axial cross-section of the bristles is a cross-section along the axial direction of the bristles, and this cross-section passes through the centerline of the first end of the bristles 20, which is the centerline along the circumference of the brush shaft 10. That is, the centerline of the first end of the bristles 20 is not in the same circumferential direction as the brush shaft 10.

[0083] Connecting the center point of the first end of the bristles 20 with the midpoint of the second end of the bristles 20 yields a straight line A. The angle between the straight line A and the axis of the brush shaft 10 is the inclination angle of the bristles 20 toward the second end of the brush shaft 10, referred to as the inclination angle of the bristles 20. The inclination angles of the bristles 20 in the same row can be the same or different. Optionally, the bristles 20 in the same row have the same inclination angle toward the second end of the brush shaft 10. That is, all bristles 20 in the same row have the same inclination angle.

[0084] The inclination angles of the bristles 20 in different rows can be the same or different. Optionally, the inclination angles of the bristles 20 in two adjacent rows toward the second end of the brush rod 10 are different. Optionally, the inclination angles of the bristles 20 in different rows are all different, or the M rows of bristles 20 are divided into P groups, the inclination angles of the bristles in each group are the same, and the inclination angles of the bristles in different groups are different, P ≥ 2. For example, if there are 9 rows of bristles on the brush rod 10, the 9 rows of bristles are divided into 3 groups, each with 3 rows of bristles, and the inclination angles of the bristles in the 3 groups are different, that is, the bristles have three different inclination angles.

[0085] As shown in FIG4 , the bristles 20 have an upper surface 21 and a lower surface 22 that are arranged relative to each other. The bristles 20 include bristles with different areas on the upper surface 21. The bristles 20 with a larger area on the upper surface 21 are defined as large bristles, and the bristles 20 with a smaller area on the upper surface 21 are defined as small bristles. The inclination angle of the large bristles toward the second end of the brush rod 10 is smaller than the inclination angle of the small bristles toward the second end of the brush rod 10. The terms "large bristles" and "small bristles" are derived by comparing two types of bristles with different upper surface areas. In this embodiment, by providing bristles with different upper surface areas on the brush rod and setting bristles of different sizes at different inclination angles, the coordination between the bristles at various inclination angles is utilized to grasp the eyelashes, thereby improving the application effect.

[0086] In one possible embodiment, two adjacent rows of bristles 20 are defined as bristles A and bristles B, respectively. Bristles A and bristles B are spaced apart from each other, the upper surface area of ​​bristles A is larger than the upper surface area of ​​bristles B, the inclination angle and upper surface area of ​​all bristles A are the same, the inclination angle and upper surface area of ​​all bristles B are also the same, and the inclination angle of bristles A toward the second end of the brush rod 10 is smaller than the inclination angle of bristles B toward the second end of the brush rod 10. In this embodiment, the two different types of bristles are spaced apart, and the bristles with larger upper surfaces have smaller inclination angles, while the bristles with smaller upper surface areas have larger inclination angles. This facilitates grabbing the eyelashes through the coordination between the two bristles with different inclination angles during application, thereby improving the application effect.

[0087] The bristles 20 are flaky in structure, and the shape of the upper surface of the bristles 20 includes at least one of a petal-like structure with small ends and a large center, a polygonal structure, a half-petal-like structure, and a notched petal-like structure. Optionally, the bristles 20 are flaky in structure, and the upper surface 21 and lower surface 22 of the same bristle are of the same shape, and the bristles 20 are connected to the upper surface 21 and lower surface 22 by the surrounding side surfaces. In a first possible embodiment, as shown in FIG10 , the upper surface of the bristles 20 is in the shape of petals with small ends and a large middle, and the second end is smaller than the first end, the line between the first end and the second end is an arc, and the widest part in the middle is close to the second end of the bristles. In a second possible embodiment, as shown in FIG36 , the difference from the first embodiment is that the widest part in the middle 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 in the middle is equidistant from the first end and the second end. In a fourth possible embodiment, the bristles in this embodiment are half of the central axial cross-section of the bristles in the first embodiment. In a fifth possible embodiment, as shown in FIG22 , the bristles in this embodiment are half of the central axial cross-section of the bristles in the second embodiment. half; in a sixth possible embodiment, the bristles in this embodiment are half of the cross-section of the bristles in the third embodiment along the central axial direction; that is, the upper surfaces of the bristles of the fourth to sixth embodiments are arched; in a seventh possible embodiment, the bristles in this embodiment are half-petal-shaped, and the upper surface of the bristles 20 has a multi-peak structure; in an eighth possible embodiment, as shown in Figure 14, the upper surface of the bristles 20 is a polygonal structure, such as a pentagon, hexagon, heptagon and the like; in a ninth possible embodiment, as shown in Figure 4, the cross-section of the bristles 20 is a notched petal-shaped structure, that is, the upper surface of the bristles 20 has one, two or more notches, and the bristle structure in this embodiment can be obtained by processing notches on the bristles of the first to eighth embodiments.

[0088] The cross-sectional area of ​​the first end of the bristles 20 is greater than the cross-sectional area of ​​the second end of the bristles 20. The cross-sectional area of ​​the first end of the bristles 20 refers to the area at the connection between the first end of the bristles 20 and the brush rod 10, and the cross-sectional area of ​​the second end of the bristles 20 refers to the area of ​​the side surface of the free end of the bristles 20. As shown in Figure 18, the first end of the bristles is thick and the second end is thin. Optionally, the bristles gradually become thinner from the first end to the second end. That is, if any two points between the first and second ends of the bristles are taken, namely D and E, and point D is closer to the first end than point E, then the longitudinal cross-sectional area of ​​the bristles corresponding to point D is greater than the longitudinal cross-sectional area of ​​the bristles corresponding to point E. The so-called longitudinal cross-sectional area is a cross-sectional area parallel to the first end.

[0089] The bristles 20 include two or more types of bristles, each type having different characteristics, including at least one of hardness, color, shape, and size. Specifically, the bristles 20 may be made of resin materials of varying hardness and / or color, and may also be designed to have varying shapes and / or sizes.

[0090] The bristles 20 are made of a two-color injection molded plastic part, a three-color injection molded plastic part, or a 3D-printed plastic part. When the bristles are made of two or more different plastic materials, they can be made by two-color injection molding, three-color injection molding, or 3D printing. Of course, when all the bristles are made of the same plastic material, the bristles can be made by single-color injection molding or 3D printing.

[0091] The bristles 20 are divided into H types of bristles 20, wherein at least two of the H types of bristles 20 have different hardnesses, where H ≥ 2 and H is an integer. That is, the bristles 20 can be made of two or more different plastic materials, or made of the same plastic material but with different hardnesses.

[0092] Optionally, the bristles 20 in one row have the same hardness, while the bristles 20 in two adjacent rows have different hardnesses. The bristles 20 in the two adjacent rows are defined as bristles F and bristles H, respectively. Bristles F have a greater hardness than bristles H, and bristles F and H are spaced apart. Generally, bristles with greater hardness facilitate hair separation, while bristles with less hardness facilitate makeup application. In this embodiment, the spacing of bristles of varying hardness not only facilitates hair separation but also improves makeup application compared to bristles of a single hardness. Conventional bristles made of a high-hardness material have poor makeup application, while bristles made of a low-hardness material have difficulty separating hair.

[0093] The bristles 20 have a Shore D hardness of 35 to 82 and a tensile modulus of 35 MPa, such as DuPont's 35 Shore D To 1180MPa, such as DuPont's 82shore D Optionally, the bristles 20 have a Shore D hardness of 45 to 72 and a tensile modulus of 95 MPa, such as DuPont's 45 Shore D To 570MPa, such as DuPont's 72 Shore D Optionally, the bristles 20 have a Shore D hardness of 55 to 63 and a tensile modulus of 200 MPa, such as DuPont's 55 Shore D ) to 280MPa, such as DuPont's 63shore D In a possible implementation, the bristles 20 include first sub-bristles and second sub-bristles. The Shore hardness of the first sub-bristles is D63, and the Shore hardness of the second sub-bristles is D47.

[0094] The material of the bristles 20 includes silicone elastomer, thermoplastic elastomer such as styrene-ethylene-butylene-styrene block copolymer (SBS), vinyl elastomer EVA, thermoplastic polyester elastomer such as DuPont Thermoplastic polyurethane elastomer produced by Dow Plastics One of Nitrile and EPDM.

[0095] The line connecting the second ends of the bristles 20 in the same row includes at least one of a straight line segment and a curve. The line connecting the second ends of the bristles 20 is a line connecting the center points of the second ends of the bristles 20. The line connecting the second ends of the bristles 20 includes at least one curve, at least two straight line segments, or at least one straight line segment and at least one curve. That is, at least two bristles in the same row of bristles 20 have different heights. The line connecting the second ends of the bristles 20 in the same row includes at least one of a convex arc, a concave arc, a trailing peak, a leading peak, a multi-peak shape, and an inverted V-shape.

[0096] Example 1: As shown in Figures 1-6, a brush rod 10 is connected to a brush handle 30. Eight rows of bristles 20 are provided on the brush rod 10. The bristles 20 have an upper surface 21 and a lower surface 22 arranged relatively to each other. There is a target point on the cross section of all bristles 20 located on the same spiral line. The bristles in the same row have the same shape but different heights. The adjacent bristles 20 have different structures. The eight rows of bristles 20 are divided into two categories, namely bristles C and bristles D. Bristles C and bristles D are arranged at intervals. As shown in Figure 4, the brush The upper surface of the bristles C is in the shape of a petal with a notch, and the notch is located at the first end of the bristles C, as shown in Figure 2. The second end connection line of the same row of bristles C is a convex arc. Referring to Figure 4, the upper surface of the bristles D is in the shape of a petal with two notches, and both notches are located in the middle of the bristles D, as shown in Figure 5. The second end connection line of the same row of bristles D includes a concave arc and a straight line segment. As shown in Figure 4, the angle between two adjacent rows of bristles 20 is a, where a is 45°.

[0097] Example 2: As shown in Figures 11-18, the brush rod 10 is connected to the brush handle 30, and 12 rows of bristles 20 are provided on the brush rod 10. The bristles 20 have an upper surface 21 and a lower surface 22 arranged relatively. There is a target point on the cross section of all bristles 20 located on the same spiral line. The bristles in the same row have the same shape and different heights. The adjacent bristles 20 have different structures. The 12 rows of bristles 20 are divided into three categories, namely bristles C, bristles D and bristles E. Among them, the upper surface area of ​​bristles C is the smallest, and the upper surface area of ​​bristles E is the largest. There are 6 rows of bristles C, 3 rows of bristles D and 3 rows of bristles E respectively. There is a gap between bristles C and bristles D or bristles E. Arrangement, as shown in Figures 14 and 18, the upper surface of the bristles C is a quadrilateral, as shown in Figure 16, the second end connection line of the same row of bristles C includes three straight line segments, of which the middle straight line segment is parallel to the axis of the brush rod 10, and the straight line segments at both ends are arranged obliquely. Referring also to Figures 14 and 18, the upper surface of the bristles D is petal-shaped, and the upper surface of the bristles E is pentagonal, as shown in Figure 12, the second end connection line of the same row of bristles D includes a concave arc and a straight line segment, and the second end connection line of the same row of bristles E is a convex arc, as shown in Figure 14, the angle between two adjacent rows of bristles 20 is b, where b is 30°.

[0098] Example 3: As shown in Figures 19-24, the brush rod 10 is connected to the brush handle 30. The brush rod 10 is provided with 12 rows of bristles 20. The 12 rows of bristles 20 are divided into 6 pairs. The two rows of bristles 20 in each pair are arranged back to back. The bristles 20 have an upper surface 21 and a lower surface 22 arranged relatively. There is a target point on the cross section of all bristles 20 located on the same spiral line. The bristles in the same row have the same shape and different heights. The adjacent bristles 20 have different structures. The 12 rows of bristles 20 are divided into two categories, namely bristles C and bristles D. The bristles C and bristles D are arranged at intervals, as shown in FIG. As shown in Figures 22 and 24, the upper surface of the bristles C is in the shape of a half-width raised petal. As shown in Figures 20 and 24, the second end connection line of the same row of bristles C is in the shape of a raised arc. Referring also to Figures 22 and 24, the upper surface of the bristles D is in the shape of a half-width concave petal. As shown in Figures 19 and 24, the second end connection line of the same row of bristles D includes a concave arc and a straight line segment. As shown in Figure 22, the angle between two adjacent rows of bristles 20 is c, where c is 30°, and the angle between two adjacent rows of bristles is the angle between the planes of the bristles.

[0099] Example 4: As shown in Figures 25-30, the difference between this example and Example 3 is that 10 rows of bristles 20 are provided on the brush rod, and the 10 rows of bristles 20 are divided into 5 pairs. As shown in Figure 30, the angle between two adjacent rows of bristles 20 is d, where d is 36°.

[0100] Embodiment 5: As shown in Figures 31-37, the brush rod 10 is connected to the brush handle 30, and 8 rows of bristles 20 are provided on the brush rod 10. The bristles 20 have an upper surface 21 and a lower surface 22 arranged relatively. There is a target point on the cross section of all bristles 20. All bristles are located on the same spiral line with the same shape and different heights. The 8 rows of bristles 20 are divided into two categories, defined as bristles C and bristles D, respectively. Bristles C and bristles D are arranged at intervals, as shown in Figures 33 and 36. The upper surfaces of bristles C and bristles D are both petal-shaped. The upper surface of bristles C located at the same radial position of the brush rod 10 is smaller than the upper surface of bristles D, as shown in Figures 32 and 36. The second end connection line of the bristles C in the same row is a convex arc, as shown in Figures 34 and 36. The second end connection line of the bristles D in the same row includes a concave arc and a straight line segment, as shown in Figure 33. The angle between two adjacent rows of bristles 20 is e, where e is 45°.

[0101] 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, characterized in that: The brush rod (10) comprises M rows of bristles (20), the first ends of the bristles (20) are fixedly connected to the brush rod (10), the second ends of the bristles (20) are free ends, and the second ends of the bristles (20) extend in a direction away from the brush rod (10), each row of the bristles (20) comprises N bristles (20), there is a target point on the cross section of at least two of the bristles (20), the target point is located on the same spiral line, and the first ends of the bristles (20) in the same row are located in the same axial direction of the brush rod (10), wherein M≥2, N≥2, and both M and N are integers.

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

3. The applicator according to claim 1, characterized in that: There is a target point on the cross section of each of the bristles (20) in the same row, and the target point is located on the same spiral line.

4. The applicator according to claim 1, characterized in that: There is a target point on the cross section of all the bristles (20), and the target point is located on the same spiral line.

5. The applicator according to claim 1, characterized in that: At least two of the spiral lines are included, a first group of target points exists on the cross section of a portion of the bristles in the M rows (20), and the first group of target points is located on one of the spiral lines, and a second group of target points exists on the cross section of another portion of the bristles in the M rows (20), and the second group of target points is located on the other spiral line.

6. The applicator according to claim 5, characterized in that: The pitches of the different helical lines are the same.

7. The applicator according to claim 1, characterized in that: The pitch of the helix is ​​0.5 mm to 1.5 mm.

8. The applicator according to claim 1, characterized in that: The side surface of the bristle (20) comprises at least one curved surface and / or a 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 rod (10) is fixedly connected to the brush handle (30), the second end of the brush rod (10) is a free end, and the second end of the bristles (20) is inclined toward the second end of the brush rod (10).

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

11. The applicator according to claim 9, characterized in that: The bristles (20) in the same row have the same inclination angle toward the second end of the brush rod (10).

12. The applicator according to claim 11, characterized in that: The bristles (20) in two adjacent rows have different inclination angles toward the second end of the brush rod (10).

13. The applicator according to claim 1, characterized in that: The bristles (20) are of a sheet-like structure, and the shape of the upper surface of the bristles (20) includes at least one of a petal-like structure with small ends and a large middle, a polygonal structure, a half-petal-like structure, and a notched petal-like structure.

14. The applicator according to claim 13, characterized in that: The cross-sectional area of ​​the first end of the bristle (20) is greater than the cross-sectional area of ​​the second end of the bristle (20).

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

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

17. The applicator according to claim 16, characterized in that: The bristles (20) are divided into H types of bristles (20), and among the H types of bristles (20), there are at least two bristles with different hardnesses, and H is ≥ 2, and H is an integer.

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

19. The applicator according to any one of claims 1 to 14, characterized in that: The line connecting the second ends of the bristles (20) in the same row includes at least one of a straight line segment and a curve segment.

20. The applicator according to claim 19, characterized in that: The second end connection line of the bristles (20) in the same row includes at least one of a convex arc shape, a concave arc shape, a tailing peak shape, a leading peak shape, a multi-peak shape and an inverted V shape.

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