EP4570122A1 - Kosmetikapplikator mit speziell positionierten borsten - Google Patents

Kosmetikapplikator mit speziell positionierten borsten Download PDF

Info

Publication number
EP4570122A1
EP4570122A1 EP23219497.7A EP23219497A EP4570122A1 EP 4570122 A1 EP4570122 A1 EP 4570122A1 EP 23219497 A EP23219497 A EP 23219497A EP 4570122 A1 EP4570122 A1 EP 4570122A1
Authority
EP
European Patent Office
Prior art keywords
bristle
bristles
cosmetic applicator
longitudinal axis
crown
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.)
Pending
Application number
EP23219497.7A
Other languages
English (en)
French (fr)
Inventor
Tobias BURKHARD
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 PCT/EP2024/084308 priority Critical patent/WO2025124968A1/en
Publication of EP4570122A1 publication Critical patent/EP4570122A1/de
Pending 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 relates to a cosmetic applicator according to the generic portion of claim 1.
  • bristles and cores are produced by injection moulding or 3D-printing.
  • the application behaviour of such applicators can be influenced by grinding and trimming the bristles.
  • twisted wire core brushes An alternative to twisted wire core brushes are brushes in which the bristles and the bristle carrier are created by joint shaping. So far, these have mostly been injection-moulded brushes. In the case of the latter, the bristle trim and thus each individual bristle is injection moulded together with the applicator core. One-component injection moulding is usually used.
  • a cosmetic applicator which is shaped together with its bristles - in such a way that it exhibits optimal application properties. Desired is an applicator that shows optimized application properties when it is brought tangentially to the eyelashes - i.e., in such a way that its longitudinal axis is aligned essentially orthogonally to the longitudinal axis of the eyelashes.
  • the applicator should also show optimized application properties when it is brought to the lashes frontally - i.e., in such a way that its longitudinal axis is roughly coaxial to the longitudinal axes of the lashes.
  • a cosmetic applicator with a core carrying a plurality of bristle crowns is proposed.
  • Each of the bristle crowns consists of a number of bristles held integrally on the core.
  • each of the bristle crowns has at least one and preferably only bristles which fulfil the following condition:
  • the central longitudinal axis of the aforementioned bristle encloses an angle of 137.5° with the central longitudinal axis of a bristle belonging to a bristle crown immediately preceding it in the direction of the longitudinal axis.
  • the term of 137.5° includes a tolerance of +/- 5°.
  • a tolerance of +/-2.5° is allowed.
  • a tolerance range of +/- 1° is observed.
  • a set of bristles that gives the applicator a particularly high degree of variability in use: Immediately adjacent bristles of two bristle crowns immediately following each other in the direction of the longitudinal axis form one, or better several bristle pairs of closely adjacent bristles. Closely adjacent bristles in this sense are those that are separated from each other by less than 0.5 bristle base diameters.
  • a targeted treatment of a lash can be carried out, for example a coating with mascara mass from two flank sides, or combing or curling.
  • a cosmetic applicator according to the invention is preferably used for cosmetic mass, especially mascara, but can also be used for other applications such as dental applications like applying dental mass or for interdental cleaning.
  • bristle crowns further apart from each other form a bristle pair consisting of two bristles arranged further apart from each other (by at least 2.5 bristle base diameters), which is readily accessible to one of its lashes when the applicator is approached head-on to the lash arch.
  • a bristle pair consisting of two bristles arranged further apart from each other (by at least 2.5 bristle base diameters), which is readily accessible to one of its lashes when the applicator is approached head-on to the lash arch.
  • the applicator which is positioned oblique or at an angle to the lash arch, allows individual lashes to be placed in a zone with pronounced mass storage and to be coated particularly intensively with cosmetic mass.
  • the effect according to the invention becomes even more intensive, because even more advantageously positioned bristles result, when the longitudinal centre axis of a bristle not only forms an angle of 137.5° with the longitudinal centre axis of a bristle belonging to a bristle crown immediately preceding in the longitudinal axis direction, but also with the longitudinal centre axis of a bristle belonging to a bristle crown immediately following in the longitudinal axis direction.
  • each bristle crown consists of 3 to 12 bristles aligned in the circumferential direction.
  • Particularly favourable conditions for the action on the eyelashes are achieved when at least the majority of the bristle crowns according to the invention consist of only 6 bristles each.
  • a particularly effective application behaviour is achieved when the bristles each form a straight central longitudinal axis and taper continuously and preferably conically in a radially outward direction from the bristle root to the bristle tip. This is because a plurality of pairs of bristles are then formed from adjacent bristle crowns which define a V-shaped gap between them. This V-shaped gap has a formative influence on how the respective lash inserted into the gap is acted upon. The deeper the bristle is pulled into the V-shaped gap, the more it is stripped and the more it can be bent or pulled.
  • the Figure 1 shows a preferred embodiment of an applicator according to the invention, viewed from the side.
  • This applicator has been created by injection moulding or 3D-printing.
  • the bristles 1, 2, 3 and 4 are therefore shaped together with the core. They are therefore integrally connected to the core 5, regardless of whether the bristles and the core are made of the same plastic material or not.
  • the bristle with the reference number 1 is in alignment with preferably five or seven, ideally only five other, mostly identical bristles - seen in the circumferential direction of the applicator core.
  • An inventive applicator possesses - at its free and outer end - at least one set of bristle crowns 11, 22, 33 and 44, as shown by Fig. 1 .
  • it possesses n such sets of bristle crowns - beginning at its free end.
  • n is > 8 and at least > 5.
  • the radial bristle length of all bristles belonging to one set of crowns is identical, at least essentially. In some cases the length of all bristles of all sets of crowns is identical.
  • the bristles are preferably straight, i.e., they have a straight central longitudinal axis.
  • Figures 2 , 3 and 4 show the great versatility of the applicator according to the invention in different application scenarios.
  • an eyelash 6 can be comfortably pulled through between two directly adjacent, closely spaced bristles 1, 2 when the applicator is brought tangentially to the lash arch.
  • the lash 6 thus comes into intensive contact with the mascara mass stored between these bristles.
  • the fact that the two bristles 1 and 2 are close together and thus form a clamping gap means that the lash can also be bent or drawn out.
  • an eyelash can also be conveniently pulled through between two bristles 1 and 4 which are not placed directly next to each other, but further away from each other - if the applicator is brought to the lash bow frontally.
  • the lash inserted between these two bristles can be cleverly given a curvature. This makes the eye look more attractive.
  • the applicator can also be brought to the lash arch at an angle.
  • the lash can then be inserted into a spiral groove between the bristles. This is attractive because this spiral groove can store a particularly large amount of mass, which results in particularly intensive wetting of the eyelash when it has been inserted into the spiral groove and is now slowly pulled out of it again. This is particularly important if the lashes are to appear more voluminous.
  • Figure 6 shows very clearly how an applicator according to the invention can look as a whole.
  • the cosmetic applicator as a whole or parts of it are preferably manufactured by injection molding and/or 3D printing.
  • Possible materials therefore can be Acrylonitrile Butadiene Styrene (ABS), Nylon, High density Polyethylene (HDPE), Low density Polyethylene (LDPE), Polycarbonate (PC), Polyoxymethylene (POM), Acrylic (PMMA), Thermoplastic Polyurethane (TPU), Thermoplastic Rubber (TPR) and/or Polypropylene (PP) or others.

Landscapes

  • Brushes (AREA)
EP23219497.7A 2023-12-14 2023-12-21 Kosmetikapplikator mit speziell positionierten borsten Pending EP4570122A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2024/084308 WO2025124968A1 (en) 2023-12-14 2024-12-02 Cosmetic applicator with specially positioned bristles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23216799 2023-12-14

Publications (1)

Publication Number Publication Date
EP4570122A1 true EP4570122A1 (de) 2025-06-18

Family

ID=89222942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23219497.7A Pending EP4570122A1 (de) 2023-12-14 2023-12-21 Kosmetikapplikator mit speziell positionierten borsten

Country Status (1)

Country Link
EP (1) EP4570122A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20260060403A1 (en) * 2024-08-30 2026-03-05 L'oreal Mascara Brush with Disks Having Multiple Rows

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140105667A1 (en) * 2011-03-15 2014-04-17 Chanel Parfums Beaute Applicator for applying a composition to the eyelashes and including supports fastened to a stem
EP4014789A1 (de) * 2020-12-18 2022-06-22 GEKA GmbH Applicateur cosmetique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140105667A1 (en) * 2011-03-15 2014-04-17 Chanel Parfums Beaute Applicator for applying a composition to the eyelashes and including supports fastened to a stem
EP4014789A1 (de) * 2020-12-18 2022-06-22 GEKA GmbH Applicateur cosmetique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20260060403A1 (en) * 2024-08-30 2026-03-05 L'oreal Mascara Brush with Disks Having Multiple Rows

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