EP1389436B1 - Mascara brush - Google Patents

Abstract

Bristles (3) having tapered free ends secured between, and extend out from, two twisted wire segments. The free ends of at least a portion of the bristles are wedge-shaped in cross-section.

Description

The invention relates to a mascara brush for applying a mascara mass to the eyelashes comprising a plurality of defined between two twisted wire sections, of these outwardly projecting bristles whose free ends are formed tapered.

Such a mascara brush is known from the market. An example is known from document US 6012465. There, the free bristle ends are present as tips. Although such bristle tips can penetrate well into the spaces between individual eyelashes, which is a prerequisite for a good combing result of the mascara brush, but have too low rigidity. The bristle ends are therefore when a pair of eyelashes are to be separated in the course of a make-up and this case while combing a certain resistance is overcome, often bent and leave the space between these eyelashes, without actually combing. Using brushes with stiffer, thicker bristles, they are too thick to penetrate into the interstices of tight eyelashes.

It is therefore the object of the present invention to develop a mascara brush of the type mentioned in such a way that the make-up result of a makeup operation performed with the mascara brush is improved.

This object is achieved by a mascara brush of the type mentioned, in which the free ends of at least a portion of the bristles are wedge-shaped in cross section.

According to the invention, it has been recognized that it is sufficient to separate two adjacent eyelashes, to provide a parallel to the direction of combing tapered silhouette of the bristles. In contrast, in the direction perpendicular thereto, the cross-sectional configuration of the bristles has little or no effect on the suitability of the bristles for separating the eyelashes. The wedge-shaped bristles according to the invention therefore combine the fundamentally opposing properties of the good release effect on the one hand and the good rigidity required for combing on the other hand. In addition, the wedge-shaped molded bristle tips provide more distance from each other, in which the isolated eyelashes can penetrate, especially in brushes whose bristle tips are evenly distributed on the brush surface.

Free ends of the mascara brush with a roof or chisel-shaped configuration lead to the optimization of the property pair separation effect on the one hand and combing effect on the other. Alternatively, wedge-shaped free ends of the bristles can also be realized by end-side bevelling of the bristles in cross-section.

Preferably, the outer edges of the ends are approximately parallel to each other and approximately perpendicular to the twisted wires. This edge course ensures that the silhouette of the bristle ends wedge-shaped in the course of the make-up operation, whereby good combing properties result from this during normal handling of the mascara brush.

In one embodiment of the mascara brush bristles of different lengths may be provided and only the ends of the longer bristles may be wedge-shaped in cross-section. additionally To the longer bristles, which have the advantages already described, the shorter bristles of this embodiment ensure a good cleaning or application effect of the mascara brush.

The ends of the bristles may be ground. Such bristles can be produced easily and inexpensively.

Particularly advantageous are bristle diameters in the range between 0.1 and 0.4 mm, wedge lengths between 0.5 mm and 15 mm and angle β between the longitudinal axes of the bristles and the longitudinal axis of the brush between 45 ° and 135 ° exposed. In these parameter ranges, it is possible to achieve an efficient combing effect with at the same time good cleaning or application effect of the mascara brush.

Fig. 1

eine Seitenansicht eines erfindungsgemäßen Mascara-Bürstchens;

Fig. 2

eine schematische Ansicht einer Stirnseite des Mascara-Bürstchens von Fig. 1, von der von der Griffseite abge-wandten Seite her gesehen;

Fig. 3

einen schematischen Detailausschnitt des Mascara-Bürstchens von Fig. 1 in vergrößertem Maßstab;

Fig. 4 und 5

schematische Aufsichten auf die Wimpern eines Augenlids vor und nach einem Schminkvorgang mit dem Mascara-Bürstchen von Fig. 1;

Fig. 6 bis 8

drei Ansichten eines Borsten-Endabschnitts des Mascara-Bürstchens von Fig. 1 in vergrößertem Maßstab;

Fig. 9 und 10

zwei Ansichten der Wimpern und des Mascara-Bürstchens unmittelbar vor dem Schminkvorgang;

Fig. 11

eine der Fig. 10 entsprechende Darstellung, die ein Mascara-Bürstchen schematisch nach dem Stand der Technik zeigt;

Fig. 12

eine der Fig. 9 entsprechende schematische Ansicht während des Schminkvorgangs;

Fig. 13 bis 15

drei Ansichten des erfindungsgemäßen Mascara-Bürstchens in verschiedenen Stadien des Schminkvorgangs;

Fig. 16 bis 21

Paare von Borsten-Rohlingen verschiedenen Durchmessers mit Anschlifflänge L = 0;

Fig. 22 bis 39

Paare von Borsten-Rohlingen verschiedenen Durchmessers, jedoch mit zunehmender Anschlifflänge L > 0;

Fig. 40 bis 47

Schnitte durch Varianten erfindungsgemäßer Borsten; sowie

Fig. 48

eine der Fig. 3 ähnelnde Darstellung einer weiteren Variante eines erfindungsgemäßen Mascara-Bürstchens.

Embodiments of the invention will be explained in more detail with reference to the drawing. In this show:

Fig. 1

a side view of a mascara brush according to the invention;

Fig. 2

a schematic view of an end face of the mascara brush of Figure 1, seen from the side facing away from the handle side.

Fig. 3

a schematic detail of the mascara brush of Figure 1 on an enlarged scale.

4 and 5

schematic plan views of the eyelashes of an eyelid before and after a make-up with the mascara brush of Fig. 1;

Fig. 6 to 8

three views of a bristle end portion of the mascara brush of Figure 1 on an enlarged scale.

FIGS. 9 and 10

two views of the eyelashes and the mascara brush immediately before the make-up;

Fig. 11

a representation corresponding to FIG. 10, which shows a mascara brush schematically according to the prior art;

Fig. 12

one of Figure 9 corresponding schematic view during the make-up operation;

Fig. 13 to 15

three views of the mascara brush according to the invention in different stages of the make-up process;

Fig. 16 to 21

Pairs of bristle blanks of different diameters with a length L = 0;

FIGS. 22 to 39

Pairs of bristle blanks of different diameters, but with increasing stub length L>0;

FIGS. 40 to 47

Sections through variants of bristles according to the invention; such as

Fig. 48

one of the Fig. 3 similar representation of another variant of a mascara brush according to the invention.

FIG. 1 shows a mascara brush 1 according to the invention. A core 2 having wire sections twisted together in a known manner carries a plurality of bristles 3 fixed between the wire sections. Possible materials for the bristles 3 are polyamide, polyester, polyacrylic, PET, natural hair and vegetable fibers , As FIG. 2 shows, the bristles 3 are radially outward relative to the longitudinal axis of the core 2. The soul 2 is extended in Figure 1 to the left towards a handle portion 4, which is only partially shown.

FIGS. 6 and 7 show an end section 5 of a bristle 3 projecting from the core 2 on an enlarged scale. The free end of the end portion 5 is tapered wedge-shaped. For this purpose, the end portion 5 wedge surfaces 6 and 7, which unite at the free end of the end portion 5 in the manner of a roof ridge in an end edge region 8. As is clear from the synopsis of Figures 6 and 7, the wedge-shaped pointed end portion 5 is similar to the tip of a watchmaker's screwdriver. The wedge surfaces 6, 7 close with a plane 9, which is perpendicular both on the plane of Figure 7 and on a perpendicular to this median plane of the end portion 5, a wedge angle α of 80 °. The wedge length L, ie the length of the end section 5 between the end edge region 8 and an end region 10, in which the wedge surfaces 6, 7 open into a circumferential surface 11 of the end section 5, is 2.5 mm. The end portion 5 has outside of the wedge region a cylindrical basic shape with a diameter d of 0.25 mm.

From Figure 3 it is clear that the longitudinal axis 12 of a bristle 3 with the longitudinal axis 13 of the soul 2 forms an angle β of 90 °. Along the longitudinal axis 13 of the core 2, the mascara brush 1 can have a distribution of the angle β in an angular range of approximately 90 ° ± 45 °.

FIGS. 1 and 2 show that the ridges of the end edge regions 8 are perpendicular to the longitudinal axis 13 of the core 2. As is clear from FIGS. 4, 5, 9 and 10, this orientation of the end edge regions 8 enables a defined engagement of the end edge regions 8 between adjacent eyelashes 14 emanating from an eyelid 15. In the eyelash root area adjacent to the eyelid 15, the adjacent eyelashes 14 also have a separation in the direction of the eyelash row even in the uncombed state. This separation becomes apparent, for example, in FIGS. 4 and 9. In addition, FIG. 9 shows that the bristles 3 of the mascara brush 1 have a thickness and a distance from each other in such a way that they can easily engage in this separation.

FIGS. 10 and 11 show, in a direct comparison, the difference in separation and combing power between the mascara brush 1 according to the invention and a mascara brush 16 according to the prior art with bristles 17 which do not point in a pointed or wedge-shaped manner. The detail enlargement of FIG. the end edge regions 8 of the bristles 3 of the mascara brush 1 according to the invention can also engage between closely adjacent eyelashes 14. In contrast, the bristles 17 of the prior art mascara brush 16 also have a diameter at the free end of their end portions which is large compared to the spacing of adjacent eyelashes 14. A separation of adjacent ones Eyelashes 14 is therefore hardly possible with the bristles 17 of the prior art mascara brush 16.

The mode of operation of the mascara brush 1 during a make-up operation will now be described with reference to FIGS. 9 and 12 to 15.

FIG. 13 shows a stage of the make-up process in which the mascara brush 1 is brought closer to the eyelid 15 with the eyelashes 14, without initially coming into engagement with the eyelashes 14. The mascara brush 1 is then held so that the end portions 5 of the bristles 3 engage as closely as possible at the origin of the eyelashes 14 in the spaces between them. This position is shown in FIG. 9. Subsequently, the mascara brush 1 is pulled away from the eyelid 15, the bristles 3 remaining in engagement with the eyelashes 14 and dividing and combing them. Preferably, this pulling movement is assisted by a rotation of the mascara brush 1 about its longitudinal axis 13, the direction of rotation being such that the side of the mascara brush 1 engaged with the eyelashes 14 is more rapidly removed from the eyelid 15 on the eyelid 15 as the soul 2. Alternatively or additionally, an upward / forward movement can support this pulling movement. An intermediate state during this removal, in which the eyelashes 14 are already completely divided, is shown in FIG. Due to the rigidity of the end portions 5 in the center plane parallel to the meshing direction, these do not bend when splitting and combing the eyelashes 14. FIG. 15 shows the stage of the make-up process immediately after the mascara brush 1 has been disengaged from the combed eyelashes 14 after combing.

The split and combed eyelashes 14 as a result of the make-up operation are shown in FIG. It creates the subjective impression of an extension and increase in volume of the eyelashes.

Further embodiments of mascara brushes according to the invention are shown in FIGS. 16 to 48. Brush components which correspond to those which have already been described with reference to FIGS. 1 to 15 have the same reference numerals and will not be explained again in detail.

Figures 16 to 21 show pairs of different variants of bristle blanks 18 as a starting product for the production of bristles 3. The diameter d of the bristle blanks 18 increases between the figures 16 and 21, starting from 0.1 mm in Figure 16 to 0.4 mm in Figure 21 without wedge or with a bevel length or wedge length L = 0.

FIGS. 22 to 39 show different variants of end sections 5 of bristles 3 according to the invention with diameters of 0.1 mm to 0.4 mm and larger L. FIGS. 22 to 27, 28 to 33 and 34 to 39 show end sections 5 which are shown in FIGS respective bristle blanks 18 of corresponding diameter were produced by grinding.

At the end portions 5 of the bristles 3 of FIGS. 22 to 27, the wedge length L is 1.5 mm. The wedge length L of the end portions 5 of the bristles 3 of Figures 28 to 33 is 3 mm and that of the bristles 3 of Figures 34 to 39 6 mm. End sections 5 with smaller wedge lengths, for example 0.5 mm, and with larger wedge lengths, for example 15 mm, can also be produced.

The wedge angles α in the bristles 3 shown in FIGS. 22 to 39 vary between approximately 80 ° in the end sections 5 of the bristles 3 of FIGS. 22 to 27 up to approximately 89 ° in the end sections 5 of the bristles 3 of FIGS 39. Smaller wedge angle α between 5 ° and 80 ° can be realized.

FIGS. 40 to 47 show variants of cross-sectional shapes for the bristles 3. FIG. 40 shows the cross-section of a bristle 3 made of solid material. Figure 41 shows a hollow bristle 3. Figure 42 shows a bristle 3 with a longitudinal groove 19 and a resulting cross-sectional shape which is similar to the letter C. FIG. 43 shows a bristle 3 with a cross-shaped cross section. The bristle 3 according to FIG. 44 has a triangular shell shape with rounded corners. Inside, the bristle 3 of Figure 44 has three parallel to the longitudinal axis 12 of the bristle 3 extending hollow chambers 20, which are separated by interconnected in the form of the letter Y webs 22. The bristle 3 according to FIG. 45 is made of a composite material having a cylindrical core section 22 and a shell section 23 surrounding the latter in the manner of a sleeve. The bristle 3 according to FIG. 46 has a cross-sectional shape in the manner of the letter H. The bristle 3 according to FIG. 47 has a fourfold, cloverleaf-like cross-sectional structure such that the bristle 3 in the section of FIG. 47 looks like a puzzle piece.

In the non-rotationally symmetrical cross-sectional geometries of the illustrated cross-sectional shape variants, ie the cross-sectional shapes of Figures 42, 43, 44 and 46, the length of the ridge can be predetermined by the choice of the direction of the ridge of the Endkantenbereichs 8 for orientation of the cross-sectional shape, about which the combing properties of Bristles 3 with this cross-sectional shape having mascara Brush 1 can be specified.

Alternatively, the end edge region 8 can also be produced by a single planar wedge surface which chamfers the end section 5 of the bristle 3 in order to produce an end edge region 8.

48 shows a further variant of the mascara brush 1. There, bristles 3, 24 of different lengths are provided, wherein only end sections 5 of the longer bristles 3 have end edge regions 8. These longer bristles 3 comb the eyelashes 14 as part of the make-up process. The shorter, not wedge-shaped bristles 24 serve to support the cleaning or application action of the mascara brush 1.

Claims (8)

1. A mascara brush for applying a mascara mass onto the eyelashes, comprising a plurality of bristles secured between two twisted wire segments and extending out from the same, the free ends of which are designed tapered, characterized in that the free ends (5) of at least a portion of the bristles (3) are executed wedge-shaped in cross section.
2. A mascara brush according to claim 1, characterized in that the free ends have a roof or chisel-shaped configuration (6 through 8).
3. A mascara brush according to claim 1, characterized in that the outer edges (8) of the ends (5) extend approximately parallel to one another and approximately perpendicular to the twisted wires (2).
4. A mascara brush according to claim 1, characterized in that bristles (3, 24) of different lengths are provided and only the ends of the longer bristles (3) are designed wedge-shaped in cross section.
5. A mascara brush according to claim 1, characterized in that the ends of the bristles (3) are polished.
6. A mascara brush according to claim 1, characterized in that a bristle diameter d in the range between 0.1 mm and 0.4 mm.
7. A mascara brush according to claim 1, characterized in that a wedge length L in the range between 0.5 mm and 15 mm.
8. A mascara brush according to claim 1, characterized in that an angle β between the longitudinal axes (12) of the bristles (3) and longitudinal brush axis (13) in the range between 45° and 135°.

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