EP4014789A1 - Kosmetik applikator - Google Patents

Kosmetik applikator Download PDF

Info

Publication number
EP4014789A1
EP4014789A1 EP21154788.0A EP21154788A EP4014789A1 EP 4014789 A1 EP4014789 A1 EP 4014789A1 EP 21154788 A EP21154788 A EP 21154788A EP 4014789 A1 EP4014789 A1 EP 4014789A1
Authority
EP
European Patent Office
Prior art keywords
bristle
core
cosmetic applicator
bristles
roll axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21154788.0A
Other languages
German (de)
English (en)
Inventor
Erika VON JAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Geka GmbH
Original Assignee
Geka GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Geka GmbH filed Critical Geka GmbH
Priority to EP21819861.2A priority Critical patent/EP4262473A1/fr
Priority to KR1020237024513A priority patent/KR20230129240A/ko
Priority to PCT/EP2021/083362 priority patent/WO2022128428A1/fr
Priority to CN202180029493.XA priority patent/CN115379779A/zh
Priority to JP2023536841A priority patent/JP2023553688A/ja
Priority to US18/267,778 priority patent/US20240099450A1/en
Publication of EP4014789A1 publication Critical patent/EP4014789A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/021—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/005—Bristle carriers and bristles moulded as a unit
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/025—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups the bristles or the tufts being arranged in an angled position relative to each other
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1046—Brush used for applying cosmetics
    • A46B2200/1053—Cosmetics applicator specifically for mascara

Definitions

  • the invention concerns a cosmetic applicator according to the generic term of claim 1.
  • Cosmetic applicators are used to apply decorative and cosmetic products to the body, preferably to the face. Furthermore cosmetic applicators are often used to apply make-up such as mascara to the eyelashes, which is why this type of cosmetic applicator is often called a mascara brush due to its appearance.
  • the cosmetic applicator is usually dipped into mascara once and distributed on the lashes with a twisting motion. This emphasizes, thickens, adapts the shape of the lashes and sometimes lengthens them. These effects are usually achieved by tinting the eyelashes.
  • Such a conventional cosmetic applicator is usually designed to pick up and spread the mascara by means of its bristles and/or bristle discs. Due to the simple alignment of the bristles, the lashes are only pulled in one direction when the cosmetic applicator rotates. The lashes usually take their place in the bristleless spaces between the bristles and are guided by the rotary movement through the adjacent bristles, while at the same time the lashes are wetted with mascara. The eyelashes are thus pressed into the path created by the interaction of the bristles and the spaces between them and are pulled forward, i.e. lengthened, by the friction with the mascara.
  • the lashes are only pulled away from the eyelid orthogonally due to the arrangement of the bristles, which are usually only arranged orthogonally to the core of the applicator. This makes it - at least for non-experienced users - difficult to reproduce the actual growth direction of lashes, which limits the design possibilities.
  • the lashes stand out from the eyelid in only one direction in some areas, as they are pressed together in the bristle-free spaces between the bristles during the rotation. This means that the mascara is generally not ideally distributed and the result of the moistened lashes is not seldom perceived as suboptimal.
  • the object of the invention is to specify means by which the lashes can be better separated and brought into a fan-like divergent position relative to one another.
  • the bristle trimming of the core has several bristle belts.
  • Each bristle belt consists of several bristles, which are arranged completely (thus in whole or substantially completely) one behind the other along a belt line extending along the circumference of the core.
  • the solution according to the invention is characterized by the fact that several directly adjacent belt lines have a different course. Furthermore channels are formed between these belt lines - usually obstacle-free - into which lashes can be inserted without any special efforts. The channels also have a different course.
  • the cosmetic applicator in general is usally designed in such a way that there is at least a rolling angle range of - preferably at least 45°, better at least 90° and ideally at least approximately 180° - on the applicator, in which the following happens when the applicator is rolled:
  • the channels continuously strive to the side, thus. They strive towards the distal or proximal end of the bristle-bearing core. In most cases, the channels are even designed in such a way that some of the channels extend to the proximal end and some of the channels extend to the distal end.
  • the lashes which are where the multiple belt lines have the smallest distance between each other, are pulled apart in the direction of the roll axis of the core when the cosmetic applicator is rotated around the roll axis of its core.
  • the eyelashes can thus be distributed in the channels between the respective bristle belts, just like with conventional cosmetic applicators.
  • the starting position for this is preferably the position in which the belt lines have the smallest distance from each other and thus in many cases form channels that are orthogonal to the roll axis when viewed in projection.
  • the lashes are separated during a rotational movement around the roll axis of the cosmetic applicator in such a way that the lashes are virtually pushed away from each other and are not forced onto a narrower path and thus further compressed, as is usually the case with conventional cosmetic applicators.
  • bristle trimming describes the entirety of all bristles which are on the bristle-bearing core.
  • a “bristle belt” in the sense of the invention consists of a number of bristles which are arranged completely or substantially completely one behind the other along the circumference of the core.
  • bristle row describes bristles which are located one behind the other in longitudinal direction on the outside of the core. Thus a bristle row always contains only one bristle of a bristle belt.
  • a “belt line” in the sense of the invention thus designates an imaginary line which is formed by the connecting lines of the foot points of the individual bristles of a bristle belt.
  • a belt line also runs along the circumference of the core.
  • a belt line does not necessarily have to be a circular line that lies in a single plane. Rather, there are also belt lines that are three-dimensional objects. Not according to the invention are jumping or unsteady, jagged lines, preferably also not those that change their direction locally with a radius of curvature of less than 0.4 mm.
  • the "bristle-bearing core” or just “core” refers to the carrier part of the cosmetic applicator that is covered with bristles. In a broader sense, this includes the entire cosmetic applicator except the bristles. In a narrower sense, however, the "core” is only the part of the cosmetic applicator that is connected to the handle or the attachement shaft (to which the handle is attached) of the cosmetic applicator.
  • the core and the attachement shaft are preferably separated from each other by at least one shoulder.
  • the "roll axis” refers to the axis around which the entire cosmetic applicator rotates during the aforementioned rotational movement that must be performed for the intended use of the cosmetic applicator.
  • the roll axis is preferably the longitudinal axis of the handle or the attachement shaft of the cosmetic applicator, which is usually also the geometric center axis of the handle or the attachement shaft.
  • the core with its bristles therefore also rotates around this roll axis. It should be noted that the roll axis does not necessarily have to be the geometric center axis of the core, which is generally referred to as the longitudinal axis L.
  • the cosmetic applicator is designed in such a way that the imaginary core cut surface, which is formed by a belt line and which is created when the core is thought to be cut by a hot wire that is guided along the belt line, along which bristles are arranged one behind the other, forms an imaginary swash plate.
  • a belt line running around the circumference creates a surface, which cuts the core in an individual way and is called "swash plate”.
  • These swash plates perform a wobbling motion when the core rotates around its roll axis. The rotation of the core around its roll axis is preferred for each intended use of the cosmetic applicator. As such swash plates are formed, this offers the possibility to influence the course of the bristle-free spaces through the bristle belts and thus the result of the lashes.
  • a “swash plate” in the sense of the invention also means, as mentioned above, an imaginary surface which is formed by a belt line. Since a belt line runs around the circumference of the core, the surface thus formed intersects the core in a way that is individual for each belt line.
  • the term “swash plate” is chosen because this imaginary disk usually does not perform a uniform, radial rotational movement when rotating around the roll axis, but "wobbles".
  • “Wobbling” here means the fact that the individual (geometric) local center axes of the respective swash plates are preferably not identical to the roll axis of the swash plates.
  • the roll axis of the swash plates is again the roll axis of the core and therefore the roll axis of the entire cosmetic applicator.
  • wobbling is thus caused by the angle and the distance of the center axis of the swash plates from the roll axis.
  • the wobbling is caused by the tilt angle of the center axes of the swash plates to the roll axis and is the dominant and decisive wobbling motion.
  • such swash plates are designed in a way that they are different and therefore individual. This offers the possibility to individually design the course of the bristle-free spaces and above all to design them in such a way that these spaces narrow or preferably widen when the cosmetic applicator is rotated around the roll axis. This ensures that the lashes and especially their spreading to each other can be adjusted by the cosmetic applicator when used as intended, preferably so that the distance between the lashes increases.
  • these two groups of imaginary swash plates are separated by at least one imaginary disk whose belt line forms a swash plate whose center axis is parallel to the roll axis of the core or whose center axis has an angle with respect to the roll axis of the core that is at least a factor of three smaller than the tilt angle of all other center axes of the swash plates in respect to the roll axis of the core.
  • at least one swash plate is formed, whose center axis is preferably parallel and in any case less than 5° inclined to the roll axis.
  • at least one central swash plate is formed, while towards the distal and the proximal end, the tilt angles of the swashplates or their central axes line up at opposite tilt angles.
  • center axis of the swashplate is now more difficult to define for a curved surface.
  • the center axis in this case represents the center axis of an equivalent flat surface.
  • a surface is preferably used, which is created when a purely flat surface intersects the core.
  • the constant tilt angle of this flat surface corresponds to the local tilt angle of the swash plate with respect to a vertical plane at the intersection of the swash plate with the roll axis.
  • kinked bristles are preferably designed in such a way that the bristles are kinked in the radially outer third or quarter.
  • the bristle-bearing core of the cosmetic applicator has a cambered design. This is defined by the area of a vertical cross-section through the core decreasing from the largest vertical cross-sectional area of the core towards both the distal and proximal ends of the core. This ensures that the bristles lying on the cambered side are spread even further apart due to the local curvature of the surface on which they stand.
  • the bristles used in cosmetic applicators are at least predominantly conical in shape. On the one hand, this leads to a good guidance of the lashes during the intended application and on the other hand it is advantageous for some manufacturing processes.
  • a cosmetic applicator also has at least one row of bristles composed of bristles whose longitudinal axes of the bristles are exactly or approximately parallel to each other and/or in which the distance between the longitudinal axes of the bristles is exactly or approximately identical and/or whose longitudinal axes of the bristles are exactly or approximately orthogonal to the roll axis.
  • a regular row of bristles is formed, which is used for threading the lashes and thus serves as the starting point for the beginning rotary movement during the intended application.
  • the lashes can thus assume their starting position in the bristle-free spaces between the bristles and are guided from this position through the other bristles of the bristle belt.
  • a cosmetic applicator is preferably designed in such a way that the tilt angle of the center axis of the respective swash plate increases in amount relative to the roll axis with decreasing distance to both the distal and the proximal end of the core. This angle increases towards both the distal and the proximal end.
  • this increase in the angle of inclination in both directions is interrupted by a central separation disc, whose central axis is ideally parallel to the roll axis.
  • the already mentioned at least one swash plate is the best choice, if its center axis is parallel to the roll axis of the core or if its center axis has a tilt angle to the roll axis of the core which is smaller than the tilt angle of all other center axes of the swash plates to the roll axis of the core. From this swash plate to the distal as well as to the proximal end the tilt angle of the center axes of the respective swash plate increases preferentially. The arrangement of the swash plates in this way leads in turn to a better and more targeted separation of the lashes.
  • a further preferred design is that with increasing vertical distance of the bristle rows to the at least one bristle row, which is composed of bristles whose longitudinal axes are parallel to each other and/or in which the distance from the longitudinal axis of the bristle is approximately identical and/or whose longitudinal axes are orthogonal to the roll axis, the distance of the bristle tips of bristles lying on a bristle row increases or at least remains the same.
  • the bristles prefer to spread further and further apart the greater the vertical distance to the row, which is preferably used as the starting position for starting the intended application. In this way a better separation of the lashes can be achieved.
  • the "vertical distance” in the sense of the invention is the distance of the imaginary connecting line of a bristle row to a reference line, whereby the imaginary line of the bristle row is projected onto the vertical plane in which the roll axis lies.
  • Fig. 1 to Fig. 4 show a first embodiment of the cosmetic applicator in different views.
  • the cosmetic applicator 1 consists of the bristle-bearing core 2 and the attachment shaft 3, which is used to connect a handle.
  • Such a single bristle 5 is exemplarily provided with a reference sign.
  • a classification in bristle rows 13 is also possible.
  • a bristle row 13 is additionally framed in black in Fig. 1 and marked with a reference sign.
  • the bristle-bearing core 2 of this embodiment is also characterized by a cambered version 7, which can be seen in the side view in Fig. 1 .
  • the core then usually has a convex surface when viewed in the circumferential direction. Its diameter then becomes smaller in the area of its proximal and distal ends.
  • the bristle-bearing core 2 can also be divided into its proximal end 9 and its distal end 8. On its distal end 8 additional bristles may be attached, which are not arranged in bristle belts or bristle rows. These additional bristles are used to apply mascara pointly and to make individual eyelashes more easily accessible, for example for local separation, especially in the area of the inner corner of the eye.
  • Fig. 5 and Fig. 6 show exemplarily and schematically the course of the belt lines 10 of an embodiment of the cosmetic applicator, the comparison with belt lines of a conventional cosmetic applicator and the effect on the lashes when used as intended. While conventional cosmetic applicators only pull the lashes in a straight direction and force the lashes onto a narrow path, the cosmetic applicator according to the invention separates the lashes.
  • Fig. 6 shows the conventional cosmetic applicator on the left side and an embodiment of the cosmetic applicator according to the invention on the right side.
  • Fig. 7 shows further different embodiments of the cosmetic applicator with regard to additional bristles on the distal end 9 of the cosmetic applicator.
  • Either no bristles can be present at the distal end, single bristles or a star-shaped bristle geometry 11.
  • Both the single bristles and the star-shaped bristle geometry in turn serve to apply mascara pointwise and to better reach individual lashes, especially in the area of the inner corner of the eye.
  • Fig. 8 shows different embodiments of the cosmetic applicator with regard to different length variants.
  • the smaller version is preferably used for Asian lashes. Due to the shorter, straight lashes and the shape of the eyes, smaller cosmetic applicators are required to avoid spreading the mascara too widely.
  • the inventive applicator and in particular the smaller version thereof can also be used for application on eyebrows - to style them and bring them to a specific position, angle, shape..
  • a very specific advantage is that one can get can produce with properly elected 3_D-pinting procedures a surface texture - for example (seen by microscope) a surface texture like a crocodile skin - that shows improved wetting and / or storing properties.
  • elected additive manufacturing process are Stereolithography (SLA), Selective Laser Sintering (SLS) and Digital Light Processing (DLP) process.
  • SLA Stereolithography
  • SLS Selective Laser Sintering
  • DLP Digital Light Processing
  • SLA Stereolithography
  • SLA Stereolithography
  • SLA Stereolithography
  • These resins can provide at least one of the following properties to the applicator according to the present invention: flexibility, softness, recyclability, durability, light weight.

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  • Brushes (AREA)
EP21154788.0A 2020-12-18 2021-02-02 Kosmetik applikator Withdrawn EP4014789A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP21819861.2A EP4262473A1 (fr) 2020-12-18 2021-11-29 Applicateur de cosmétique
KR1020237024513A KR20230129240A (ko) 2020-12-18 2021-11-29 화장품 도포기
PCT/EP2021/083362 WO2022128428A1 (fr) 2020-12-18 2021-11-29 Applicateur de cosmétique
CN202180029493.XA CN115379779A (zh) 2020-12-18 2021-11-29 美容品涂抹器
JP2023536841A JP2023553688A (ja) 2020-12-18 2021-11-29 化粧品アプリケータ
US18/267,778 US20240099450A1 (en) 2020-12-18 2021-11-29 Cosmetic applicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202020107411 2020-12-18

Publications (1)

Publication Number Publication Date
EP4014789A1 true EP4014789A1 (fr) 2022-06-22

Family

ID=74505115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21154788.0A Withdrawn EP4014789A1 (fr) 2020-12-18 2021-02-02 Kosmetik applikator

Country Status (1)

Country Link
EP (1) EP4014789A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060272667A1 (en) * 2005-06-02 2006-12-07 The Procter & Gamble Company Cosmetic applicator
US20130089368A1 (en) * 2011-10-06 2013-04-11 Lin-Lang Chan Structure for shaping makeup brush
WO2018152185A1 (fr) * 2017-02-15 2018-08-23 Hct Packaging, Inc. Applicateur déformable de produit cosmétique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060272667A1 (en) * 2005-06-02 2006-12-07 The Procter & Gamble Company Cosmetic applicator
US20130089368A1 (en) * 2011-10-06 2013-04-11 Lin-Lang Chan Structure for shaping makeup brush
WO2018152185A1 (fr) * 2017-02-15 2018-08-23 Hct Packaging, Inc. Applicateur déformable de produit cosmétique

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