# US 2023/0263296 A1 · Mascara brush having tornado-shaped bristle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0263296 A1 - Document ID: US20230263296A1 - Status: Published application - Kind: A1 - Application number: 17/852,410 - Filed: 2022-06-29 - Published: 2023-08-24 - Earliest claimed: 2022-02-18 - Assignees: Shya Hsin Packaging Industry (China) Co., Ltd. - Applicants: Shya Hsin Packaging Industry (China) Co., Ltd. - Inventors: Christophe JACOB; Fuhai YU - Web page: https://patentgrep.com/patent/US20230263296A1 ## CPC - A46B 9/021: {arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow} - A46B 9/02: Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups - A46B 9/026: {where the surface of the brush body or carrier is not in one plane, e.g. not flat (A46B9/005 takes precedence)} - A46B 9/028: {Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone} - A46D 1/0238: {Bristles with non-round cross-section} - A46B 2200/1053: Cosmetics applicator specifically for mascara - A46B: BRUSHES (handles not integral with brushware B25G) - A46D: MANUFACTURE OF BRUSHES ## Abstract A mascara brush having a tornado-shaped bristle includes a bristle and a core. A root of the bristle is provided on the core, and a free end of the bristle is provided away from the core. There is at least one bristle. A centerline of the bristle intersects with an axis of the core in a non-perpendicular manner. By providing an included angle between the centerline of the bristle and the axis of the core, the bristle is inserted between eyelashes more easily. As the bristle is not perpendicular to the axis of the core, a cross section of the whole mascara brush is reduced. While the length of the bristle remains the same, the opening of a mascara bottle is reduced. The new mascara brush has the advantages of better application effect, more compact structure and better ease of eyelash combing. ## Claims ### Claim 1 A mascara brush having a tornado-shaped bristle, comprising a bristle and a core, wherein a root of the bristle is provided on the core, and a free end of the bristle is provided away from the core; there is at least one bristle; and a centerline of the bristle intersects with an axis of the core in a non-perpendicular manner. ### Claim 2 (depends on 1) The mascara brush according to claim 1, wherein the centerline of the bristle is an arc line; included angles between all the bristles and the axis of the core are identical in a direction; the core is rod-like; wherein a single row of bristles are spaced apart along the axis of the core, or multiple rows of bristles are spaced apart along the axis of the core and spaced apart in a tornado-shaped manner along a circumferential direction of the core; and two adjacent rows of bristles are parallel to each other, or two adjacent rows of bristles are staggered from each other along the axis of the core. ### Claim 3 (depends on 2) The mascara brush according to claim 2, wherein at least two rows of bristles are provided on the core, wherein at least one row of bristles are the bristles formed into the included angles with the axis of the core. ### Claim 4 (depends on 1) The mascara brush according to claim 1, wherein an included angle between the centerline of the bristle and the axis of the core is in a range of (0°, 45° ]. ### Claim 5 (depends on 2) The mascara brush according to claim 2, wherein two sides of a same row of bristles are defined as a first side and a second side, respectively; and the bristle at the first side has a height of H1, the bristle at the second side has a height of H2, and the bristle in a middle of the first side and the second side has a height of H3, wherein H1=H2>H3, or H1>H2>H3, or H2>H1>H3. ### Claim 6 (depends on 2) The mascara brush according to claim 2, wherein centerlines of at least two of the bristles are gathered to one point, or gathered to a circumference of one circle. ### Claim 7 (depends on 1) The mascara brush according to claim 1, wherein a cross section of the bristle is in at least one selected from the group consisting of a square shape, a cross shape, an I shape, a petaloid shape, an octagon, a rectangle, a rounded rectangle, a triangle, a convex trapezoid, a concave trapezoid, a circle and an ellipse. ### Claim 8 (depends on 1) The mascara brush according to claim 1, wherein a cross section of the bristle is in at least one selected from the group consisting of a square shape, a cross shape, an I shape, a petaloid shape, an octagon, a rectangle, a rounded rectangle, a triangle, an ellipse, a convex trapezoid and a concave trapezoid; the bristle is twisted along a circumferential direction of an axis of the bristle; and at least one of the free end, the root or a middle portion of the bristle is twisted. ### Claim 9 (depends on 8) The mascara brush according to claim 8, wherein when the bristle is in any one selected from the group consisting of the cross shape, the I shape and the octagon, a groove formed by a concave portion on the cross section of the bristle is a spiral groove. ### Claim 10 (depends on 8) The mascara brush according to claim 8, wherein cross-sectional shapes at different heights of the same bristle are identical or similar. ### Claim 11 (depends on 8) The mascara brush according to claim 8, wherein the cross section of the bristle is in a centrosymmetric shape or an axisymmetric shape. ### Claim 12 (depends on 8) The mascara brush according to claim 8, wherein a cross-sectional area of the bristle from the root to a tip is decreased linearly. ### Claim 13 (depends on 8) The mascara brush according to claim 8, wherein the bristle is twisted clockwise along the circumferential direction of the axis of the bristle, or the bristle is twisted counterclockwise along the circumferential direction of the axis of the bristle. ### Claim 14 (depends on 8) The mascara brush according to claim 8, wherein side edges of the bristle are located at outward protruding junctions between two lines of the cross section of the bristle; and at least one of the side edges of the bristle is twisted. ### Claim 15 (depends on 14) The mascara brush according to claim 14, wherein all the side edges of the bristle are twisted; any two of the side edges are twisted in different angles; or any two of the side edges in a centrosymmetry are twisted in a same angle. ### Claim 16 (depends on 1) The mascara brush according to claim 1, wherein the bristle and the core are formed by integrated injection molding. ### Claim 17 (depends on 2) The mascara brush according to claim 2, wherein a cross section of the bristle is in at least one selected from the group consisting of a square shape, a cross shape, an I shape, a petaloid shape, an octagon, a rectangle, a rounded rectangle, a triangle, a convex trapezoid, a concave trapezoid, a circle and an ellipse. ### Claim 18 (depends on 3) The mascara brush according to claim 3, wherein a cross section of the bristle is in at least one selected from the group consisting of a square shape, a cross shape, an I shape, a petaloid shape, an octagon, a rectangle, a rounded rectangle, a triangle, a convex trapezoid, a concave trapezoid, a circle and an ellipse. ### Claim 19 (depends on 4) The mascara brush according to claim 4, wherein a cross section of the bristle is in at least one selected from the group consisting of a square shape, a cross shape, an I shape, a petaloid shape, an octagon, a rectangle, a rounded rectangle, a triangle, a convex trapezoid, a concave trapezoid, a circle and an ellipse. ### Claim 20 (depends on 5) The mascara brush according to claim 5, wherein a cross section of the bristle is in at least one selected from the group consisting of a square shape, a cross shape, an I shape, a petaloid shape, an octagon, a rectangle, a rounded rectangle, a triangle, a convex trapezoid, a concave trapezoid, a circle and an ellipse.