KR20150063408A - Heated applicator - Google Patents

Abstract

The present invention relates to an applicator (1) for applying a product to keratin fibers, in particular eyelashes or eyebrows, wherein the applicator (1) comprises application elements, in particular bristles (13) And a heating element 12 at least partially surrounding the core 10 and positioned over at least a portion of its length at a non-zero distance d from the core 10, ).

Description

[0001] HEATED APPLICATOR [0002]

The present invention relates to makeup of eyelashes or eyebrows.

It is known in the art to use heat to curl or extend eyelashes.

Applicators comprising a heating resistor wound in the form of one or more turns are known, for example, in applications FR 2 853 504 and in application EP 1 466 541.

Application FR 2 913 319 and application WO 2008/068337 disclose applicator heads designed to be heated.

The application WO 99/22782 teaches how to curl eyelashes using a heating element made of ceramic.

FR 2 890 543 discloses a double turning part of a heat resistant wire adapted to curl eyelashes.

The application EP 0 848 920 discloses a device for curling eyelashes comprising curved portions which are in contact with the eyelashes in use and which are suitable for the shape of the eye and eyebrows. The temperature of the heating element is maintained at 80 to 120 ° C.

Application EP 1 543 741 discloses a heating element located between rows of two projecting elements.

International application WO 2011/139537 discloses a heated mascara applicator comprising a plurality of heating elements disposed on or in the surface of at least a portion of combing elements. The illustrated embodiments disclose an alternation between one combing element heated by a hot wire portion and one combing element not heated, at least in part of the applicator element.

Filing EP 1 468 628 and FR 2 914 161 disclose applicators for creasing eyelashes and eyebrows, which are designed to heat and liquefy the composition to be applied.

Application WO 2010/015050162 discloses a heating core.

Application FR 2 899 445 discloses an applicator that utilizes the electrostatic properties of the applicator element.

Known devices tend to distinguish between combing and curling of eyelashes.

There is a need to combine and curl the eyelashes in a single action and also to have a device for creasing the eyelashes which produces a satisfying curling effect.

An object of the present invention is, in one of the aspects of the present invention, an applicator for applying a product to human keratin fibers, in particular eyelashes and eyebrows, said applicator comprising:

A brush comprising application elements derived from the core, the application elements comprising, for example, bristles or teeth,

A heating element at least partially surrounding the core and located over at least a portion of its length at a non-zero distance from the core.

The length of the heating element to the core is measured between the core and the inner surface of the heating element. For example, the distance is 1 mm or more.

At least a portion of the heating element may surround the core. The present invention combines eyelashes using bristles or teeth with a single action and can also apply heat to the eyelashes using a heating element, in particular through contact between the eyelashes and the heating element.

For example, the surface temperature of the heating element during use is, for example, 20 ° C to 120 ° C, or even 60 ° C to 90 ° C, and preferably about 70 ° C. The temperature ensures comfortable application while allowing effective curl of the eyelashes.

The eyelashes may be kept individually as they are more easily curled, and the formation of eyelash clusters in which the cosmetic composition is present in the lashes is avoided.

The applicator may include a temperature controller designed to control the temperature of the heating element. The maximum temperature is reached, for example, after 10 seconds to 3 minutes, especially about 1 minute.

The current passes through the heating element. The intensity of the current through the heating element is selected to reach the desired temperature.

The heating element may extend along a longitudinal axis, for example coinciding with the longitudinal axis of the core.

The longitudinal axis of the heating element may be the central axis of the brush, even a symmetrical axis.

The distance between the outer surface of the heating element and the longitudinal axis of the core may be between 1 and 10 mm.

Some bristles or toothed portions derived from the core may pass through the heating element and may project against the outer surface of the heating element.

The protruding length of the bristles or the toothed portion, which means the length of such bristles protruding beyond the heating element or the portion of the tooth portion, may be 0.1 to 10 mm.

The applicator may include a built-in electrical supply connected to the heating element, and the electrical supply includes, for example, at least one single cell or multiple cells. Alternatively, the applicator is designed to be connected to a power supply connected to the main via an electric lead.

The applicator may include a stem having a brush and a heating element at the distal end.

At the proximal end, the stem may be attached to the grip member. The gripping member may comprise a power supply for the heating element, in particular one or more batteries or accumulators.

The stem may have wires and connections that can supply power to the heating element.

The stem is, for example, a molded stem, particularly a stem molded in conductors for electrical connection with a heating element. The heating element may surround the core throughout the entire area from which the bristles or teeth are derived. Alternatively, the heating element surrounds the core over a portion of the portion from which the bristles or teeth are derived.

In one particular embodiment, the heating element does not surround the distal end portion of the core; This arrangement protects the eye much more by preventing the heating element from moving too close to the eye.

thermic rays

The heating element may comprise a hot wire, in particular a hot wire, or may be a single wire.

The heating element may include at least one turn portion formed by a heating resistance wire extending around the core.

In one embodiment of the present invention, the heating element includes at least one portion of the turn portion that extends obliquely relative to its longitudinal axis, and the hot wire includes, for example, a helical winding extending around the core .

Alternatively, the heating element includes at least one portion of the turn portion extending substantially perpendicular to its longitudinal axis.

The heating element may comprise at least one part of the turn part extending substantially at the arc, or alternatively may have a shape different from the arc when viewed along the longitudinal axis of the heating element, for example a substantially polygonal, At least one portion of the turn portion having the shape of the turn portion.

The heating elements may comprise portions of the turn having the same shape and following each other at regular intervals along the longitudinal axis of the heating element.

The turn portions may have the same dimensions, or alternatively the turn portions may be changed by progressing along the longitudinal axis of the brush, for example in order to follow changes in the cross-section of the envelope surface defined by the application elements of the brush It may have dimensions.

The spacing between the turn portions may be constant, or may vary in the middle along the length of the brush or in shorter intervals at the ends of the brush. For example, it is possible to utilize the presence of a heating element to change the orientation of the bristles and to stop the spiral effect associated with the use of a twisted core.

In one embodiment of the invention, the heating element comprises at least one spiral shaped winding portion.

In one particular example, the hot wire is wound onto a double helix, especially obtained using two alternating helical turns.

These two windings may be formed from a single strand of the hot wire or alternatively may be formed from two respective electrically conductive strands electrically connected to each other at one of the ends of the windings, for example.

The hot wire may include at least one conducting portion made of nichrome.

In one embodiment of the invention, the hot wire comprises an electrically insulating outer coating, in particular an enameling. This makes it possible to avoid the risk of a short circuit between the turn portions.

The current through the heating element is selected to reach the desired temperature.

The use of wire wound at a non-zero distance away from the core allows the user to contact the heating element with the eyelashes while simultaneously loading the eyelashes into the product to comb the eyelashes.

Only such portions of the bristles or teeth that protrude around the heating element are twisted and such portions of the bristles or teeth proximate the core act as a reservoir of the product.

The eyelashes may be filled with the product upon contact with the core or when the eyelashes pass through a space between the core and the heating element.

By altering the orientation of the orientation of the brush, the user may choose to combine the eyelashes in parallel with the turns and in a favorite way; The eyelashes then can enter the space between the two successive turn parts more easily. The user may also try to orient the brush accordingly and then form a larger contact area by passing the eyelashes across the outer surface of the turn portions of the heating element.

Each eyebrow can be heated on two sides as the eyebone enters a space formed between the two turn portions.

The present invention can enter the eyelashes into the spaces formed between the turn portions over a relatively large distance, so that the combing of the eyelashes becomes easier. The width of the space in which the eyelashes can enter the gap between two adjacent turn portions, for example, may be 0.1 mm to 3 mm.

Heating tubular portion

Alternatively, the heating element comprises a tubular portion comprising at least one opening through which at least one bristle or one tooth passes.

The heating tubular portion may or may not comprise a resistive heating element that generates heat when the current passes through the heated tubular portion. The heated tubular portion may be made of at least a thermally conductive material, for example a metal or a portion of a ceramic. The opening described above may be in the form of at least one slot through which bristles or teeth may pass.

These slots may or may not be parallel to the longitudinal axis of the brush.

The apertures may comprise several slots that are uniformly distributed, especially for tubular parts.

The opening may be in the form of at least one hole, in particular a round, oval, elliptical or polygonal shape, through which at least one bristle or one tooth extends. The applicator comprises, for example, a tuft of bristles derived from the core and passing through a hole in the heating element.

The tubular portion may be made of a resistive material to generate heat when the current passes through the tubular portion. Alternatively, tubular parts support such a resistive material.

Type of brush

The brush may have any conventional type known for creaming keratin fibers, especially eyelashes.

The free ends of the bristle or toothed portion may define an envelope surface that may extend along a longitudinal axis of the core and along a longitudinal axis coinciding with the longitudinal axis of the heating element.

The envelope surface may have a substantially constant largest transverse dimension, e.g., diameter, along at least a portion of the length of the applicator member.

In addition, the envelope surface may have a varying cross-section as it progresses along its longitudinal axis, for example, in the form of peanuts, rugby balls, trusses, or any other shape known for mascara brushes It is possible.

The brushes may have twisted cores, may be molded, and may have at least one row of teeth, for example, parallel to the longitudinal axis of the core.

The longitudinal axis of the core may, in certain instances, be the center axis of the core, or even a symmetry axis, particularly when the core has a circular cross-section or has a generally regular polygonal shape. The longitudinal axis of the core may be straight or curved.

In the alternative, the brush includes a molded core resulting from at least one tuft of bristles attached to the core.

In one embodiment of the invention, the applicator comprises at least one row of applicator elements extending substantially parallel to the longitudinal axis of the brush.

In the case of a molded core, the heating element may be secured to the core in a warm or cold manner in a variety of ways, such as clip fastening, joining, welding, crimping, or indenting. The core may even be overmolded to a portion of the heating element.

A further object of the present invention is a method for creasing eyelashes wherein the applicator according to the invention is used to apply the product to the eyelashes while applying heat to the eyelashes.

The invention may be better understood by reading the following detailed description of its non-limiting embodiments and referring to the accompanying drawings.

Figure 1 schematically and partially illustrates an applicator according to one embodiment of the present invention.
Figures 2 to 4 schematically illustrate side views of brushes according to various embodiments of the present invention.
5 is a schematic and partial view of a cross-section of an example of a hot wire according to the present invention.
Figures 6a-6b illustrate possible methods of attaching a heating element.

Figure 1 shows an applicator 1 for applying a product to human keratinous fibers, in particular eyelashes and eyebrows, wherein the applicator 1 comprises a bristles 13 comprising bristles 13 derived from the core 10, (12) having a heating resistance wire (70) surrounding the core (10) over substantially the entirety of the core (10) bearing the bristles (13) except for the distal portion (E) ).

The brush 5 and the heating element 12 are fixed at the distal end of the stem 4 and the stem 4 is held by the gripping member 3 including the power supply for the heating element 12 in this example And extend at the other end. The power supply (not shown) includes, for example, one or more batteries or accumulators.

The stem 4 is produced, for example, by molding, and has wires 40a and 40b and connections that can supply power to the heating element 12.

In the illustrated example, the core 10 is formed by twisting two strands of wire twisted over itself at the ends, and the turn portions formed during the twist operation clamp the bristles. The wire may be covered with an electrically insulating material or the core may be provided with a heating element 12 to form an electrical connection between the heating element 12 and the electrical conductors 40a and 40b, May be electrically insulated at the end of the core entering the stem (4) when it has two sectors (4a) pushing towards the two respective end strands (15) of the stem (12). In one example, as shown, the insertion of the distal ends of the core 10 and heating element 12 provides both electrical and mechanical attachment. Alternatively, the electrical connection may be made independent of the mechanical fastening.

The gripping member (3) is provided with a switch (6) for switching on the heating element (12).

The hot wire 70 may form two alternating winding portions 7a and 7b extending along the longitudinal axis X as shown.

For example, the two winding portions 7a and 7b are images of one another substantially through a translation along the longitudinal axis X, and each winding portion 7a or 7b has a longitudinal axis X, The turn portions of the same shape are repeated. In the example of Fig. 1, the winding portions 7a and 7b form a double helix, and each of the winding portions 7a and 7b has a spiral shape. The turn portions of the one winding portion are substantially in the middle between the turn portions of the other winding portion.

In an alternative form, not shown, the windings 7a and 7b comprise turn parts that extend, for example, at right angles to the longitudinal axis X in an arc.

Looking at the brush along its longitudinal axis, it is within the scope of the present invention to have winding portions 7a and 7b comprising polygonal or some other shaped turns.

Alternatively, at least one of the windings 7a and 7b has at least two differently shaped turns.

The number of turn portions formed by the hot line 70 may be selected according to the desired result, especially according to the spacing of the two adjacent turn portions.

As can be seen in FIG. 5, the hot wire 70 may include an electrically conductive strand 72 made of, for example, nichrome including 60 wt% nickel and 16 wt% chromium, and an electrically insulating outer coating 73, For example enamelling. For the sake of clarity, Figure 5 was not particularly drawn to the appropriate proportions.

Alternatively, the hot wire 70 may comprise a conductive bare conducting strand 72 that does not have an electrically insulating outer coating.

Windings 7a and 7b may be created from integral strands of hot wire or may alternatively be generated from at least two respective strands electrically connected to one another.

For example, the two winding portions 7a and 7b may be connected to a cylindrical support in a first direction to form a first winding portion and then in a second direction opposite to the first direction to form a second winding portion, As shown in Fig. The support is then removed.

The diameter of the heat ray 70 is, for example, 0.1 mm to 0.9 mm, for example, close to 0.7 mm. The hot wire 70 may have a length close to 50 mm to 300 mm, for example, 150 mm when wound.

The turn portions 9 may have an outer diameter close to 2 to 20 mm, for example 7 mm.

The heating element 12 is positioned over its entire length at a distance d that is not zero from the core 10. The distance d is measured between the longitudinal axis of the core and the cylinder defined by the inner surface of the turn portions of the heating element 12.

Two adjacent turn portions belonging respectively to the winding portions 7a and 7b are arranged in the space of the turn portions in the vicinity of the turn portions, for example 0.1 mm to 3 mm, in particular a width y close to 1 mm 80) may be defined.

The heating element 12 may not be provided with any wires extending inside the turn portions, as in the illustrated examples.

In the example shown in FIG. 1, the hot wire 70 is connected to the stem 4 only by two substantially straight and parallel parallel distal strands 15. In FIG.

While the applicator of FIG. 1 includes a brush with a twisted core, the brush 5 shown in FIG. 2 includes several rows 140 of teeth 14 derived from the molded core 10 . The wires of the heating element 12 extend around the core 10 at a slight distance. The teeth 14 extend between the turn portions and protrude beyond the envelope cylinder defined by the outer surfaces of the turn portions.

3 and 4, the heating element 12 includes a tubular portion 17 that includes a plurality of apertures 18 through which the application element passes, , But may alternatively be a toothed portion derived from a molded core.

Figure 4 shows a brush 5 having a molded core 10 from which the rows 140 of teeth 14 are derived. Each row 140 passes through a slot-shaped opening 18 parallel to the longitudinal axis X of the brush.

The illustrated exemplary brush 5 includes several slots that are uniformly distributed with respect to the tubular portion 17.

In the case of a brush comprising a molded core as shown in Figures 2 and 4, the core may include a widened end 10a that contributes to the safety of the eye at its distal end.

Figure 6a shows the possibility of overmolding the stem 4 to the conductors 40a and 40b connected to the contacts 4a used for electrical connection with the heating element 12, For example, a sleeve, and includes a proximal cylindrical portion 12a of a diameter smaller than the diameter of the stem 4. [ The heating element 12 and the core 10 may be connected to the stem 4 in any other suitable manner. 6b, the stem 4 is overmolded onto the core 10, the proximal cylindrical portion 12a of the heating element 12, and the conductors 40a and 40b.

Of course, the invention is not limited to only the described embodiments.

It is not beyond the scope of the invention to combine the features of the illustrated examples in alternative forms not shown.

The brush may extend along the longitudinal axis of the curved.

The applicator according to the present invention may be designed to close the container containing the product to be applied when not in use. For example, the container has a threaded neck to which the holding member is threaded. The container may be provided with a member for twisting the brush fixed to the neck of the container, for example.

The word " comprising "should be interpreted as being synonymous with" including at least one "unless specified otherwise.

Claims (11)

An applicator (1) for applying a product to keratin fibers, in particular lashes or eyebrows,
The applicator (1)
A brush 5 comprising application elements derived from the core 10, in particular bristles 13 or teeth 14, and
- a heating element (12) at least partially surrounding said core (10) and located over at least a portion of its length at a non-zero distance (d) from said core (10)
A current flows through the heating element 12,
The heating element (12)
- at least one turning part (7a, 7b; turn) formed as a hot line extending around the core (10), or
- a tubular portion (17) having at least one opening (18) through which at least one bristle (13) or one tooth (14) passes. The applicator according to claim 1, wherein the brush (5) has a twisted core. The applicator of claim 1, wherein the brush is a molded brush. 4. The applicator of any one of claims 1 to 3, wherein the heating element surrounds the core over the entire core portion from which the bristles (13) or the teeth (14) are derived. The applicator according to any one of claims 1 to 4, wherein the heating element comprises a hot wire wound in a heated double helix around the core (10). 6. A device according to any one of claims 1 to 5, characterized in that the opening (18) of the tubular portion (17) is circular, oval or rounded, through which at least one bristle (13) or one tooth (14) Wherein the applicator is in the form of at least one hole in an elliptical or polygonal shape. 6. A device according to any one of the preceding claims, characterized in that several bristles (13) or teeth (14) pass through the opening (18) in the form of a slot (18a) ) Parallel to or not parallel to the longitudinal axis (X) of the applicator. 8. The applicator according to any one of the preceding claims, wherein the surface temperature of the heating element (12) is between 20 DEG C and 120 DEG C, preferably about 70 DEG C, during use. 9. The applicator according to any one of claims 1 to 8, comprising a self-containing electrical supply connected to the heating element (12). 10. The applicator according to any one of claims 1 to 9, comprising a stem (4) having wires (40a, 40b) and connections capable of supplying power to the heating element (12). An applicator as defined in any one of claims 1 to 10, wherein the applicator is used to apply the product to the eyelashes while applying the heat emitted by the heating element to the eyelashes.

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