WO2008098650A1 - Skin moistening method - Google Patents

Abstract

The invention relates to a skin moistening method which is characterized in that a cosmetic preparation is applied to the skin to be treated and is then worked into the skin to be moisturized, using a rotating or oscillating brush, or in that a cosmetic preparation is applied to a brush, the brush is set rotating or oscillating by a drive and the skin to be treated is then treated, using the rotating or oscillating brush. According to both methods, the cosmetic preparation contains at least one moisturizer.

Description

 DESCRIPTION

Skin moisturizing procedure

The invention relates to a method for skin moisturization, characterized in that a cosmetic preparation is applied to the skin to be treated and then incorporated by means of a rotating or oszilierenden brush in the skin to be moisturized or that a cosmetic preparation is applied to a brush, the Brush is rotated by means of a drive in rotation or oscillation and the skin to be treated is then treated by means of the rotating or oscillating brush, wherein the cosmetic preparation contains in both process routes at least one moisturizer.

Cosmetic preparations which are supposed to cause moisturization of the skin after application to the skin are many. In particular, it is widely used in the prior art to enrich cosmetic preparations with so-called moisturizers, since these promise an increase in skin hydration.

The skin-moisturizing performance of the preparations with a single application is often insufficient in very dry skin to maintain skin hydration over a longer period of time. Only repeated application creates relief.

From EP 1 304 989 a device for cleaning the skin is known in which the skin can be cleaned with the aid of a rotating brush and a washing or exfoliating preparation. The specialist speaks here of microdermabrasion. In doing so, the uppermost layers of the epidermis are removed and the remaining skin appears younger and fresher. However, such treatment is a significant burden on the treated skin areas. In particular, skin fat and water are removed in addition to the dead skin cells. It was unexpected to the person skilled in the art that by using a device which has a rotating and / or oscillating brush, the incorporation of cosmetic preparations containing moisturizers, the skin moisture can be increased considerably more than when the preparation is applied with bare fingers. Skin moisturizing means the supply of moisturizers to the skin. They serve to enrich moisture in the skin and protect against dehydration of the skin.

Moisturizers within the meaning of the invention are substances which enrich the skin with moisture and protect it from drying out. Moisturizers suitable according to the invention are glycerol, urea, hyaluronic acid, panthenol, propylene glycol, taurine, ceramides, phytosterols, aloe vera extracts, creatine, creatinine, sodium hyaluronate, polysaccharides, biosaccharides gum-1 (trade name Fucogel), cucumber extracts, butylene glycol, Propylene glycol, methylpropanediol, ethylhexylglycerol, sorbitol, amino acids (in particular glycine, glycine soya, histidine, tyrosine, tryptophan) and aminic acid derivatives and lactic acid and / or lactates, in particular sodium lactate, ethylhexyloxyglycerol, pyrrolidonecarboxylic acid.

Furthermore, it is particularly advantageous to use polymeric moisturizers from the group of water-soluble and / or water-swellable and / or water-gellable polysaccharides. Hyaluronic acid, chitosan and / or a fucose-rich polysaccharide, for example, which are filed in the Chemical Abstracts under the registry number 178463-23-5 and z. B. under the name Fucogel®1000 from the company SOLABIA S.A. is available.

Preparations in the context of the invention are, in particular, emulsions which, in addition to a water phase, also contain an oil phase. The advantage of emulsions is that the sliding properties are considerably better than with purely aqueous preparations. The skin is therefore much less irritated (irritated) than in the known cleaning or micro-abrasion treatment. The results obtained with the method according to the invention are not comparable on closer inspection although the eye-clear view of the treated skin areas does not necessarily show a difference. The process according to the invention has an effect on the deeper-lying building layers through its increased hydration and not on the uppermost dead cell layer, as is the case with the prior art. Dar inventive method shows a longer-lasting effect which is regularly reflected in a general rejuvenation of the skin. On the other hand, regular microdermabrasion treatment is impracticable due to the strong irritant effect and would lead to persistent damage since the removal of dead skin cells would result in the loss of a skin's own protective action.

In addition to the abovementioned substances, the preparations optionally contain, in addition to the abovementioned additives, for example perfume, dyes, antimicrobial substances, lipid-replenishing agents, complexing and sequestering agents, pearlescing agents, plant extracts, vitamins, active ingredients, preservatives, bactericides, Pigments which have a coloring effect, thickeners, softening, moistening and / or moisturizing substances, or other conventional constituents of a cosmetic or dermatological formulation, such as alcohols, polyols, polymers, foam stabilizers, electrolytes, organic solvents or silicone derivatives. According to the invention, the devices comprise a drive unit and a brush which carries a plurality of bristles or nubs extending from the surface of a carrier plate into the space and the carrier plate has a connection / coupling to the drive unit. By the drive unit, the brush is set in rotation or in oscillating movements. In the method according to the invention, the brush is wetted with the cosmetic preparation and this then applied with rotation of the or oscillation of the brush on the skin or the cosmetic preparation is applied from the skin and then incorporated with the rotating or oscillating brush in the skin.

The drive unit may comprise an electric motor, e.g. powered by a battery or accumulator. It is also within the meaning of the invention to use alternative electroless drive units, e.g. Spring drives or spring lifts.

For the purposes of the invention, brushes are to be used which not only carry bristles of one kind, but rather mix bristles of different dimensions and / or hardness or arrange bristle tufts of different dimensions and / or hardness mixed on the support plate.

Brushes have proven particularly advantageous, which have between 1,000 and 35,000, in particular 20,000 to 30,000 bristles, wherein the bristles have a fiber thickness of 0.045 to 1, 2 mm. The length of the bristles is advantageously chosen between 0.4 to 1.5 cm.

For the purposes of the invention, it is also in lieu of bristled brushes to use brushes carrying a plurality of fingers of molded elastic bristles. Fingerbesetzte brushes have the advantage of better cleanability, since the fingers are arranged individually on the support plate. Also, the massage effect of fingers is higher than that of bristles.

Preferably, the brush is detachably connected to the drive unit, so that the brush is replaceable. This has the advantage that the brush can be easily disposed of (disposable) or easily cleaned separately. For the purposes of the invention, it is to design the brush stainless, in particular metal-free, so that e.g. Also a cleaning in a washing machine and / or dishwasher is possible.

Also, the interchangeability of the brush brings the advantage that can be used with the same drive unit depending on the application brushes different Bristle trim / Noppenbesatzes and / or different hardness.

The connection between the drive unit and the brush must be designed so that the drive forces (rotation or oscillation) of the drive are transferred to the brush. It is advantageous if the brush is locked to the drive unit. It is also conceivable a compound which is designed in the form of a hook and loop fastener. In the figures 1 to 12 some brush geometries are shown schematically, which have been found to be particularly advantageous. However, these examples are not intended to limit the invention, but to clarify which scope for design exists.

Figure 1 shows an example of a brush comprising a support plate (1) from which a plurality of bristles (2) of equal length extending parallel to each other in the free space. The bristles are in clusters (3) from the support plate (1). The individual bristle tufts can be arranged in a random or geometrical arrangement, as shown in FIGS. 4 to 6. For the purposes of the invention, it is not only bristles of a variety to use, but bristles of different dimensions and / or hardness mixed or bristle tufts of different dimensions and / or hardness mixed to arrange on the support plate. Figure 2 also shows schematically a brush as it is suitable for the inventive method. In this example, not only bristles of a length as shown in Figure 1 are arranged on the support plate, but the bristles are divided into short bristles (2a) and long bristles (2b) in sections or tufts. The brush shown in FIG. 3 has bristles which also have intermediate lengths with respect to the brush shown in FIG. Brushes with shorter bristles can be obtained by machining (eg, trimming) brushes that have bristles of only one length.

FIG. 7 shows, by way of example, a brush which not only contains bristles, but also has thicker cylindrical or conical fingers (5) made of a deformable elastomer. These fingers are generally thicker than the bristles and act in the process of the invention slightly massaging the application sites. Figures 8 and 9 illustrate particular embodiments of a blended bristled and fingered brush of Figure 7. Figure 10 shows an example of a brush (nubs) purely of nails, the nubs of which were applied to a hard backing plate by two-component injection molding in a second manufacturing step. These types of brushes have an increased massaging effect whereby the applied preparations can be excellently transported into deeper skin layers. Figures 11 and 12 illustrate particular embodiments of a pure finger or knob brush made of elastomeric material.

13 schematically shows the structure of a device for carrying out the method according to the invention, comprising a brush 10 and a drive unit 11. The drive unit is composed in the case shown here of a motor 12, a switch 13 and a power source 14, wherein the switch 13th the connection between see engine and power source can be made or interrupted. As a power source, for example, battery (s) or accumulator (s) are used. Examples of a skin moisturizing preparations according to the invention

Claims

1. A method for increasing skin hydration, characterized in that a cosmetic preparation is applied to the skin to be treated and then incorporated by means of a rotating or oszilierenden brush in the skin to be moisturized. 2. A method for increasing the skin moisture, characterized in that a cosmetic preparation is applied to a brush, the brush is rotated by means of a drive in rotation or oscillation and the skin to be treated is then treated by means of the rotating or oszilierenden brush , 3. The method according to at least one of the preceding claims, characterized in that the cosmetic preparation contains at least one substance from the group of moisturizers. 4. The method according to at least one of the preceding claims, characterized in that the cosmetic preparation is an emulsion, in particular a W / O or O / W emulsions 5. The method according to at least one of the preceding claims, characterized in that the brush carries bristles having different lengths. 6. The method according to at least one of the preceding claims, characterized in that the brush carries injection-molded nubs. 7. The method according to at least one of the preceding claims, characterized in that the brush carries bristles and injection molded nubs. 8. The method according to at least one of the preceding claims, characterized in that the brush carries between 1,000 and 35,000, in particular 20,000 to 30,000 bristles. 9. The method according to at least one of the preceding claims, characterized in that the bristles have a fiber thickness of 0.045 to 1, 2 mm. 10. The method according to at least one of the preceding claims, characterized in that the at least a portion of the bristles has a length between 0.4 and 1, 5 cm. 11. Use of rotating or oszilierenden brushes for incorporation of cosmetic preparations into the skin, characterized in that the cosmetic preparation contains at least one substance from the group Moisturizer. 12. Use of rotating or oszilierenden brushes in conjunction with a cosmetic formulations to increase the moisture of the skin. 13. The method or use according to at least one of the preceding claims, characterized in that the one or more moisturizers are selected from the group glycerol, urea, hyaluronic acid, panthenol, propylene glycol, taurine, cerium mide, phytosterols, aloe vera extracts, creatine, creatinine , Sodium hyaluronate, polysaccharides, gum-1 biosaccharides, cucumber extracts, butylene glycol, propylene glycol, methylpropanediol, ethylhexylglycerol, sorbitol, amino acids (in particular glycine, glycine soy, histidine, tyrosine, tryptophan) and amino acid derivatives and lactic acid and / or lactates, in particular Sodium lactate, ethylhexyloxyglycerol, pyrrolidonecarboxylic acid. 14. Cosmetic kit, comprising a device with rotating and / or oscillating brush and a cosmetic preparation, characterized in that the cosmetic preparation contains at least one moisturizer.