Toilet – Hair device – Eyelash or eyebrow
Patent
1993-07-13
1994-12-06
Spisich, Mark
Toilet
Hair device
Eyelash or eyebrow
132320, 15206, 152072, A45D 4026
Patent
active
053701410
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to a brush intended for making up the eyelashes by means of a product for thickening the eyelashes, also referred to as mascara.
BACKGROUND OF THE INVENTION
The usual brushes of this type generally comprise relatively long bristles disposed in a spiral layer around a core formed by a twisted iron wire. The number of bristles of the brush is measured by the number of bristles forming one turn of the spiral layer having an angular aperture equal to 360.degree..
Relatively flexible bristles were used in the prior art so as to give the brush the general property of appropriate flexibility. Given that the brush was to be used to make up a support as delicate as the eyelashes, the maximum diameter of the bristles was generally approximately 0.08 mm. The bristles used were generally made of polyamide. In this case, given that the bristles of small diameter referred to hereinabove have in themselves very low rigidity, it was ensured that a sufficient quantity of mascara was taken up and that the eyelashes were brushed correctly at the time of application by always using more than 50 bristles per turn so that the spiral layer was sufficiently thick to obtain the desired result. The spiral layer of bristles generally had a pitch of approximately 2 mm and the bristles were substantially parallel in the thickness of the layer.
However, it became clear that brushes of this kind did not ensure good distribution of the make-up product over the eyelashes upon use, as, in practice, the mascara is often placed over the eyelashes in blobs with no homogeneity, so that the user has to effect repeated brushing operations until an approximately uniform coating of the eyelashes is obtained. This disadvantage results firstly from the fact that these brushes comprise a large number of bristles packed closely together in the spiral layer, so that, at the time of application, the eyelashes, the diameter of which is generally between 0.08 and 0.12 mm, cannot traverse the layer of bristles and can only move into the gaps between the successive turns of the spiral layer of bristles. The eyelashes therefore cannot be separated from one another at the time of application, as would be desirable. However, the said disadvantage results moreover secondly from the fact that when a brush of this kind of the prior art takes up the mascara, the latter is distributed poorly over the brush, as a mascara applicator generally comprises a mascara container and a removable cap which is adapted to close the container and which forms a handle for the manipulation of a make-up brush carried by the end of a stem integral with the said cap. In the closed position of the container, the stem and the brush associated therewith penetrate into the container. When the stem is removed from the container, a certain quantity of mascara is taken up on the brush and this can then be applied to the eyelashes. The brush penetrates into the interior of the container via a substantially circular orifice surrounded by a flexible lip, the function of which is to exert a wiping action on the bristles of the brush in order to eliminate excess make-up product taken up on the brush inside the container. The diameter of this circular orifice is smaller than the diameter of the brush measured at the tip of the bristles, so that the flexible lip which surrounds the orifice can exert its wiping action when the brush is removed from the container. As the bristles of the brush are relatively flexible and are disposed with a relatively high density in the spiral layer of bristles, they bend over in the direction of the core when the layer passes through the wiper lip and, by virtue of this deformation, they cause the bristles of the adjacent turn to "bend over", resulting in the fact that the make-up product tends to accumulate in the region of the brush situated just around the core. Under these conditions, at the time of application, the user will have difficulty obtaining a completely uniform and homogeneous coating of the eyelashes
REFERENCES:
patent: 2728929 (1956-01-01), Bell
patent: 4617948 (1986-10-01), Gueret
patent: 4733425 (1988-03-01), Hartel et al.
patent: 4861179 (1989-08-01), Schrepf et al.
patent: 4887022 (1989-12-01), Gueret
patent: 4898193 (1990-02-01), Gueret
patent: 4927281 (1990-05-01), Gueret
patent: 4993440 (1991-02-01), Gueret
patent: 5063947 (1991-11-01), Gueret
patent: 5197497 (1993-03-01), Gueret
"L'Oreal"
Spisich Mark
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