WO2019120703A1

WO2019120703A1 - Hydrogen peroxide formulation in barrier layer films

Info

Publication number: WO2019120703A1
Application number: PCT/EP2018/079236
Authority: WO
Inventors: Marc NOWOTTNY; Torsten LECHNER; Wolfgang Barthel
Original assignee: Henkel Ag & Co. Kgaa
Priority date: 2017-12-18
Filing date: 2018-10-25
Publication date: 2019-06-27
Also published as: DE102017223023A1

Abstract

The present invention relates to a cosmetic product for changing the natural color of keratin fibers, in particular human hair, comprising at least one packaging (VP) and a cosmetic composition (KM) found in said packaging (VP). The packaging is made of a multi-layered film (F) which contains at least two polymer layers (P1) and (P2) and at least one barrier layer (BS). The cosmetic composition comprises at least one oxidizing agent and at least one thickening agent from the group consisting of xanthans. The use of the packaging (VP) in combination with the cosmetic composition (KM) surprisingly does not lead to a blowing of the packaging or an excessive loss of water from the agent (KM) during storage.

Description

'Hydrogen peroxide formulation in barrier films

The present invention is in the field of cosmetics and relates to a product for the oxidative color change of keratinic fibers, in particular human hair, which comprises a packaged in an oxidant-containing composition. The oxidizer-containing composition contains a thickener as the group of xanthans. The packaging is a packaging made of a special multilayer composite film system, the wall of which comprises at least two polymeric layers and a Barierre layer. Here, the barrier layer has a Durchtrittsperrwirkung for gases and water vapor.

The change in the color of keratinic fibers, especially hair, is an important area of modern cosmetics. In this way, the appearance of the hair both current fashion trends and the individual wishes of each person can be adjusted. For color change of the hair, the expert knows various ways.

Through the use of direct dyes, the hair color can be changed temporarily. In this case, already formed dyes diffuse from the colorant into the hair fiber. The dyeing with substantive dyes is associated with little hair damage, but a disadvantage is the low durability and fast washability of the dyes obtained with substantive dyes.

Thus, if the consumer wishes to have a long-lasting color result or a shade lighter than his original hair color, oxidative color-change agents are usually employed. For permanent, intensive colorations with corresponding fastness properties, so-called oxidation colorants are used. Such colorants usually contain oxidation dye precursors, so-called developer components and coupler components, which under the influence of oxidants - usually hydrogen peroxide - form the actual dyes among each other. Oxidation dyes are characterized by excellent, long-lasting staining results.

The pure whitening or bleaching of hair is often done by the use of oxidizing agents without the addition of oxidation dye precursors. For a medium Blondiereffekt the use of hydrogen peroxide as the oxidant alone is sufficient, for the achievement of a stronger Blondiereffektes usually a mixture of hydrogen peroxide and Peroxidisulfatsalzen is used. Oxidative color changing agents usually come on the market in the form of two-component compositions, in which two different preparations are packaged separately in two separate packages and are mixed together only shortly before use.

The first preparation is a - usually acidified for stability reasons - formulation containing as oxidizing agent, for example, hydrogen peroxide in concentrations of 1, 5 to 12 wt .-%. The oxidizing agent formulation is usually in the form of an emulsion or dispersion and is usually made available in a plastic bottle with a reclosable outlet opening (developer bottle).

This oxidizer formulation is mixed with a second formulation before use. This second preparation is an alkaline formulation which is often in the form of a cream or gel and which also contains at least one oxidation dye precursor if, at the same time as brightening, a color change is desired. This second preparation can be provided for example in the form of a tube or in the form of a plastic or glass container.

In the conventional application form described above, the second preparation, which contains the alkalizing agent and / or the oxidation dye precursors, transferred from the tube or container in the developer bottle and then mixed by shaking with the already in the developer bottle hydrogen peroxide preparation. In this way, the application mixture is prepared in the developer bottle. The application on the hair then takes place via a small nozzle or outlet opening on the head of the developer bottle. The spout is opened after spillage, and the application mixture can be removed by squeezing the flexible developer bottle.

The use of the developer bottle requires a certain amount of routine from the user, so that some users prefer to make the application mixture in a mixing bowl and apply it with a brush.

When preparing the application mixture in a shell, both components - the first preparation containing the oxidizing agent and the second preparation with alkalizing agent and / or oxidation dye precursors - completely transferred to a dish or a similar vessel and stirred there, for example with the aid of a brush. The application mixture is then removed via the brush from the mixing bowl. In this form of application, the use of a voluminous and expensive developer bottle is not necessary, and it is still sought after inexpensive and material-saving packaging forms for the oxidant preparation. In this context, packages in the form of bags or pouches, which as a rule are made of plastic films or even metal foils, are suitable as inexpensive packaging forms with low material consumption.

Such a packaging can be produced, for example, by gluing or hot-pressing two superimposed plastic films, the adhesion taking place on all edges of the films. The interior of the package (i.e., plastic bag) made by bonding may then be filled with the desired cosmetic formulation. The opening of the package can be done by tearing or cutting the plastic bag.

However, the filling of oxidant preparations in such packages is associated with problems whose cause is due to the reactivity of the oxidizing agent. Oxidizing agents are highly reactive substances which, depending on the storage conditions and, if appropriate, the presence of decomposing impurities, decompose in small amounts to form oxygen (i.e., gas).

As a rule, the developer bottles known from the prior art are filled with the oxidizing agent composition only a maximum of half, usually only one third, of their internal volume. As a rule, developer bottles are made of polyethylene. Since polyethylene is permeable to both water vapor and gases, there is no or very little overpressure in the developer bottle. In addition, developer bottles are usually provided with stable, thick walls and a sturdy screw cap, so that the diffusion of water vapor or gases through the thickness of the walls is reduced and a slight pressure increase occurring within the bottle has no negative effects.

In contrast, bag-shaped packages are, however, usually filled completely with the liquid preparation, and in the filled bag there is virtually no supernatant airspace. In addition, such packages should be flexible, and upon opening (e.g., tearing or slicing), there should be no uncontrolled discharge of the preparation. For this reason, in the packaging of liquid preparations, the emergence of overpressure in the packaging should be avoided as far as possible.

If an oxidizing agent composition is present in such a packaging, the gas (oxygen) produced during storage may cause the packaging to expand. Since the edges of the package are usually only glued, a strong swelling at worst leads to bursting of the packaging. For these reasons, during storage of Oxidizing agent-containing compositions of great importance in the choice of the film material that makes up the packaging.

Packaging made of pure plastic, such as polyethylene or polypropylene, is permeable to both water vapor and gases. When storing an oxidant-containing preparations in a package made of polyethylene or polypropylene, therefore, no inflation of the packaging. Due to the high permeability of the relatively thin film of the packaging to water vapor, however, the water content of the preparation is reduced. If the preparation is stored in the packaging for a few weeks to months, the loss of water exceeds the maximum permitted for sufficient storage stability.

Completely airtight packages are made, for example, from plastic films having a lamination with a metal layer, for example, with an aluminum layer. These packages are impermeable to water vapor and gases. If these packages are filled with an oxidizing agent-containing preparation, the gas produced during the decomposition of the oxidizing agent can not escape, the package expands as described above and can delaminate or even burst.

The object of the present application was to pack hydrogen peroxide-containing formulations so that the mechanical strength of the packaging is sufficiently large to allow safe storage, but that easy accessibility to the ingredients is ensured.

Surprisingly, it has now been found that oxidizer-containing compositions can be packaged in which the water vapor permeability is low and puffing can thereby be reduced by allowing the film oxygen permeability. The films consist of a special composite film system and additionally have a barrier layer. On the other hand, the oxidizing agent preparation must be thickened with special thickening agents and contain certain surfactants. By decreasing the water vapor permeability but adjusting the oxygen permeability to a sufficiently high level, the tendency of oxygen-puffing, which is formed from the hydrogen peroxide, to decrease and increase the mechanical strength over time are increased.

The present invention is a cosmetic product for changing the natural color of keratinous fibers, in particular human hair, comprising (i) at least one packaging (VP) comprising at least one multilayer film (F) which contains at least one first polymer layer (P1), at least one second polymer layer (P2) and at least one barrier layer (BS), and

(ii) at least one cosmetic composition (CM) packed in the packaging (VP) and containing:

a) at least one oxidizing compound and

b) at least one thickening agent selected from the group of xanthans, wherein the multilayer film (F) has an oxygen transmission rate (OTR) at 23 ° C and 50% relative humidity of 0.1 to 5 cc / m ² / d / bar, preferably from 0.2 to 3.5 cc / m ² / d / bar, more preferably from 0.5 to 2.5 cc / m ² / d / bar, and a water vapor permeability at 38 ° C and 100% relative humidity of 0 , 1 to 5 g / m ² d, preferably from 0.2 to 3.5 g / m ² d, more preferably from 0.5 to 2.5 g / m ² d.

Keratinic fibers, keratin-containing fibers or keratin fibers are understood to mean furs, wool, feathers and, in particular, human hair. Although the compositions according to the invention are primarily suitable for lightening and dyeing keratin fibers, in principle, there is nothing to prevent their use in other fields as well.

The product according to the invention is a product for the oxidative color change of keratinic fibers, i. a product used on the human head to achieve oxidative coloring, brightening, bleaching, bleaching or hair shading. In this context "shading" is understood to mean a coloring in which the color result is lighter than the original hair color. That the product is to be used "to change the natural color" is intended to mean that the product either comprises only an oxidizing agent for bonding, or that the product comprises an oxidizing agent used with a non-invention coupler to cause a color change or that the product is used with a non-invention dye for further tinting.

Furthermore, the term "packaging" according to the invention is understood to mean a packaging which is preferably present in the form of a sachet. A sachet is a small package in bag or bag form, which is often used in the packaging of cosmetics. The capacity of the packaging, in particular of the sachet, can be, for example, 5 to 1000 ml, preferably 10 to 200 ml and particularly preferably 20 to 50 ml.

In addition, a multilayer film (F) in the context of the present invention is understood to mean a thin, areal and windable web of the at least one polymer layer (P1) and the at least one polymer layer (P2). This multilayer film (F) forms the wall of the package (VP). The polymer layers (P1) and (P2) preferably comprise polymers which are able to train movies. Furthermore, the polymer layers (P1) and (P2) are preferably different polymer layers from each other. The package additionally contains a barrier layer (BS), which prevents or reduces the passage of water vapor and other gases, such as oxygen, ie prevents or reduces the diffusion of these gases through the wall of the package.

In addition, the term "thickener" in the context of the present invention compounds to understand which liquids, especially water, can bind and increase the viscosity of these liquids. In the context of the present invention, these also include gelling agents which are capable of thickening liquids to compositions with a gelatinous consistency or to gels. According to the invention, gel-like cosmetic agents or gels are understood to mean dimensionally stable, easily deformable disperse systems comprising at least two components, the gelling agent (usually a solid, colloidally divided substance with long or highly branched compounds) and a liquid (usually water) as the dispersion medium. The gelling agent forms a spatial network in the liquid, with the individual gel-forming compounds adhering to one another by main and / or minor valences at different spatial points.

According to the invention, the permeability values of the film (F) are advantageously adjusted. The film (F) thus gives the package advantageous barrier properties, in particular with regard to the water vapor transmission rate (WVTR, measured in units of g / (m ² d) or g / (m ² 24 h) ) measured according to the method ASTM F 1249 at 38 ° C ambient temperature and 100% relative Luftfeutigkeit, and for oxygen (English: Oxygen Transmission Rate, OTR, measured in cm ³ / (m ² d bar) or cm ³ / ( m ² 24h) - where cm ^{3 is} equivalent to cc - at an atmospheric pressure of 1 bar) measured by the method ASTM D 3985 at 23 ° C ambient temperature and 50% relative Luftfeutigkeit.

According to the invention, the term "xanthans" is understood as meaning naturally occurring polysaccharides which can be obtained from sugary substrates with the aid of bacteria of the genus Xanthomonas. The xanthan d-glucose, d-mannose, d-glucuronic acid, acetate and pyruvate used according to the invention preferably contains a molar ratio of 28: 30: 20: 17: 5, 1-6, 3, the main chain being composed of β-1, 4-linked glucose units (also referred to as cellulose chain) exists. The xanthans used with particular preference in the context of the present invention have the CAS no. 11138-66-2 and the following structural formula

The cosmetic product according to the invention comprises as the first component a packaging (VP) which comprises at least one multilayer film (F). This film contains at least one first polymer layer (P1), at least one second polymer layer (P2) and at least one barrier layer (BS). As described above, such packaging is usually produced by gluing, pressing or welding two superposed pieces of film (the packaging (VP) being filled simultaneously with the cosmetic composition (KM) ), ie such a package is closed at all edges. This packaging can be opened, for example, by tearing or cutting open.

The thickness of the multilayer film (F) should in this case be designed so that a sufficient mechanical stability is present, but at the same time the film (F) - and thus the packaging produced from the film (VP) - is so flexible that a complete removal the cosmetic composition (KM) from the opened package (VP) by pressing or pressing is made possible. These requirements are met in particular when the film (F) has a certain total thickness. Preferred embodiments of the present invention are therefore characterized in that the at least one multilayer film has a total thickness of 21 pm to 2.0 mm, preferably from 30 pm to 1, 0 mm, preferably from 50 pm to 500 pm, in particular from 60 pm to 200 pm. For the purposes of the present invention, the total thickness of the film (F) is understood to be the sum of the thicknesses of all individual layers of which the film (F) consists.

According to a preferred embodiment of the present invention, the bond strength of the film is 0.1 to 10 N / 15mm, preferably 1 to 8 N / 15mm, more preferably 1.5 to 5 N / 15mm. This is measured by the method ASTM F-904. Adhesive strength is a physical measure of adhesion between layers. The adhesive strength is related to the two layers of a film with the lowest adhesive strength between two layers of one and the same film. The adhesive strengths set according to the invention lead to an advantageous mechanical stability over the storage time of the packaged cosmetic product.

According to a preferred embodiment of the present invention, the seal strength of the package (VP) is 10 to 40 N / 15mm, preferably 15 to 35 N / 15mm, more preferably 20 to 30 N / 15mm, under the conditions 150 ° C, 2.54 cm (1 ") and 4 kg / cm ² . The seal seam strength is measured according to the ASTM F-88 method under the conditions mentioned. The challenge with packaging is always to ensure the mechanical durability of the packaging while at the same time allowing the user easy access to the contents. Setting the seal seam strength to these values enables these two goals to be achieved.

A sealed seam is understood to mean a seam through which the packaging is closed. Usually, for the closure of the package, two films are superimposed, which are pressed together by a force perpendicular to the film surface. By heating the foils in the area that is compressed, parts of the compressed areas may fuse together so that the foils are welded together. There may also be an adhesive between the compressed foils that strengthens the seam.

The arrangement of layers (P1), (P2) and (BS) within the multilayer film (F) may be different. Furthermore, it is also possible for the film (F) to comprise further layers in addition to the previously mentioned layers. In addition, it is advantageous according to the invention if all of the above-mentioned layers are each oriented parallel to the surfaces of the film (F), ie all layers have the same orientation.

It is particularly preferred according to the invention if the barrier layer (BS) is arranged on the side in contact with the cosmetic composition (KM). The first polymer layer (P1) thus adjoins the barrier layer (BS) on the one hand and the second polymer layer (P2) on the outside of the packaging, on the other hand. The polymer layer (P1) is different from the polymer layer (P2). Here, the barrier layer (BS) serves as a carrier layer onto which the first polymer layer (P1) is then applied. The second polymer layer (P2) is then applied to this polymer layer (P1). The three layers (BS), (P1) and (P2) together form a film (F) whose total thickness is preferably from 30 .mu.m to 1, 0 mm. However, in the context of the present invention, an arrangement in which the barrier layer (BS) lies between the first polymer layer (P1) and the second polymer layer (P2) is particularly preferred. In this case, the multilayer film (F) consists of three layers, the layer (P1) being in the innermost position and in contact with the cosmetic composition (KM). The layer (P1) is in contact with the barrier layer (BS), and the barrier layer (BS) in turn makes contact with the layer (P2). In this layer, the layers (P1) and (P2) do not adjoin one another but are separated by the barrier layer (BS). In this arrangement, the layers (P1) and (P2) may in principle be made of the same polymeric material, but it is preferred if the two layers (P1) and (P2) are made of different polymeric materials. The three layers (P1), (BS) and (P2) together form a film (F) whose total thickness is preferably from 30 .mu.m to 1, 0 mm. The particular advantage of this arrangement is that the - often very thin - barrier layer (BS) is located neither on the inner nor on the outer surface of the multilayer film (F), but in the direction of the inside through the polymeric layer (P1) and in Protected from the outside by the polymeric layer (P2). In this way, in this arrangement, a mechanical abrasion or mechanical destruction of the barrier layer (BS) are best avoided. It is therefore advantageous in the context of the present invention for the at least one multilayer film (F) to contain the at least one barrier layer (BS) between the at least one first polymer layer (P1) and the at least one second polymer layer (P2). The use of such packages has been found to be particularly advantageous in terms of increased storage stability since this arrangement exhibits neither bloating nor delamination with prolonged contact time with an oxidizer-containing composition.

Also particularly preferred according to the invention is a film (F) in which the first polymer layer (P1) is arranged on the side in contact with the cosmetic composition (KM). The second polymer layer (P2) is adjacent to and different from the polymer layer (P1). Outside is the barrier layer (BS). In the case of films (F) with this layering, for example, the layer (P1) can function as a polymeric carrier layer onto which the second polymeric layer (P2) is then applied. Subsequently, the side adjacent to (P2) (ie, the outside) is provided with the barrier layer. It is therefore advantageous in the context of the present invention for the at least one multilayer film (F) to contain the at least one barrier layer (BS) on the outside of the packaging (VP). According to the invention, the outer side of the packaging (VP) is understood to mean that side of the packaging which does not come into contact with the cosmetic composition (CM) but with the environment. The three layers (P1), (P2) and (BS) in this case form a film (F) whose total thickness is preferably from 30 .mu.m to 1, 0 mm. The use of such packages has been found to be particularly advantageous in terms of increased storage stability since this arrangement exhibits neither bloating nor delamination with prolonged contact time with an oxidizer-containing composition. If the multilayer film (F) contains the above-described three layers (P1), (P2) and (BS), suitable arrangements according to the invention of the layers are described below (from inside (in contact with the cosmetic composition (KM)) to the outside considered):

a) ^* Interior ^* - Layer (P1) - Layer (P2) -Barriereschicht (BS) -'Outside ^* ,

b) 'Interior ^* - Layer (P1) - Barrier Layer (BS) - Layer (P2) -' Outside ^* ,

c) 'Interior ^* - Layer (P2) - Layer (P1) -Barriereschicht (BS) -'Outside ^* ,

d) 'Interior ^* - Layer (P2) -Barriereschicht (BS) - Layer (P1) -'Outside ^* ,

e) 'Interior ^* - Barrier Layer (BS) - Layer (P1) Layer (P2) -'Outside ^* ,

f) 'Interior ^* - Barrier Layer (BS) - Layer (P2) - Layer (P1) -'Outside ^* .

The first polymeric material of the first layer (P1) is according to the invention an organic polymeric material. This material may be a polymer type layer or a polymer blend layer. For example, this first layer (P1) may act as a polymeric carrier matrix, i. In the production of the film, a layer or a film made of the polymeric material (P1) may be initially charged and then sprayed, laminated or coated with the further layers according to the invention. Preferred embodiments of the present invention are characterized in that the at least one first polymer layer (P1) is formed from polypropylene, polyethylene, polyester, polyamide or polyvinyl alcohol, in particular from polypropylene. The term "formed" is understood according to the invention that the polymer layer at least 70 wt .-%, preferably at least 80 wt .-%, preferably at least 90 wt .-%, in particular at least 99 wt .-%, jewiels based on the total weight the polymer layer (P1) containing previously mentioned compounds.

A particularly preferred product according to the invention is therefore characterized in that the multilayer film (F) comprises at least one first polymer layer (P1) which is formed from polypropylene. Polypropylene is alternatively referred to as poly (1-methylethylene), and is a thermoplastic polymer belonging to the group of polyolefins. Polypropylene is produced by polymerization of propylene (propene) using various catalysts. For example, polypropylene can be produced by stereospecific polymerization of propylene in the gas phase or in suspension according to Giulio Natta. Polypropylenes of the invention may be isotactic and thus highly crystalline, but also syndiotactic or amorphous. The control of the m ittleren relative molecular weight can be done for example by adjusting a determi mten hydrogen partial pressure during the polymerization of the propene. For example, polypropylene may have average relative molecular weights of about 150000 to 1500000 g / mol. The processing of polypropylene can be done, for example, by extrusion and stretch blow molding, or by pressing, calendering, thermoforming, and cold forming. The first polymer layer (P1) preferably has a specific layer thickness. It is therefore preferred in the context of the present invention if the at least one first polymer layer (P1) has a layer thickness of from 20.0 gm to 300 gm, preferably from 40.0 gm to 200 gm, preferably from 50.0 gm to 100 gm, in particular from 60.0 gm to 90.0 gm.

A particularly preferred product according to the invention is therefore characterized in that multilayer film (F) comprises at least one first polymer layer (P1), which is formed from polypropylene and has a layer thickness of 60.0 to 90.0 gm.

Furthermore, the multilayer film (F) from which the package is made comprises a second polymer layer (P2) of a second polymeric material. The second polymeric material may be a polymer type layer or a polymer blend layer. In the production of the multilayer film, for example, the second layer (P2) can be sprayed, applied or coated either before or after application of the barrier layer (BS) on the first polymer layer (P1) acting as a carrier layer. However, it is also conceivable that the second polymer layer (P2) acts as a carrier layer, to which then the barrier layer (BS) and the first polymer layer (P1) are applied.

Depending on the stratification sequence described above, the first polymeric material of the first polymer layer (P1) and the second polymeric material of the second polymer layer (P2) may be the same (if both layers are not in contact with each other) or may be different. The polymer layer (P2) can therefore be formed from the compounds previously mentioned in connection with the polymer layer (P1). Preferably, the layers (P1) and (P2) are made of different polymeric materials (ie, different polymers or polymer blends). It is therefore preferred within the scope of the present invention for the at least one second polymer layer (P2) to be formed from polyethylene terephthalate or polyethylene naphthalate, in particular from polyethylene terephthalate. The term "formed" is understood according to the invention that the polymer layer at least 70 wt .-%, preferably at least 80 wt .-%, preferably at least 90 wt .-%, in particular at least 99 wt .-%, jewiels based on the total weight the polymer layer (P2) containing previously mentioned compounds. Polyethylene terephthalate (PET) is a polymer from the group of polyesters. The production of polyethylene terephthalate can be carried out, for example, by transesterification of dimethyl terephthalate with ethylene glycol at higher temperatures. In this transesterification reaction, methanol is split off, which is removed by distillation. The resulting bis (2-hydroxyethyl) terephthalate is converted by polycondensation to PET, which again produces ethylene glycol. Another production method of polyethylene terephthalate is the direct polycondensation of ethylene glycol and terephthalic acid at high temperatures while distilling off the resulting water. Preferably, the second polymer layer (P2) has a smaller layer thickness than the polymer layer (P1). It is therefore advantageous in the context of the present invention for the at least one second polymer layer (P2) to have a layer thickness of from 1.00 gm to 100 gm, preferably from 2.50 gm to 50.0 gm, preferably from 5.00 gm to 25 , 0 gm, in particular from 10.0 gm to 20.0 gm.

A particularly preferred product according to the invention is therefore characterized in that multilayer film (F) comprises at least one second polymer layer (P2), which is formed from polyethylene terephthalate and has a layer thickness of from 10.0 to 20.0 gm.

The polymer layers (P1) and (P2) of the multilayer film (F) are made of organic polymeric materials, which usually have only an insufficient barrier effect against gases and water vapor. If the oxidizing agent-containing composition (KM) in a package (VP) of a multilayer film (F) packed, which comprises only the two organic polymer layers (P1) and (P2), water vapor can escape unhindered, so that the Water content in the composition (KM) changed unacceptably during prolonged storage. In order to minimize the uncontrolled escape of water vapor from the packaging (VP), the organic polymer layers (P1) and (P2) are therefore used in conjunction with a barrier layer (BS).

The barrier layer (BS) has a Durchtrittsperrwirkung for gases and water vapor. By the present invention, it is meant that the barrier layer (BS) reduces the permeation rate of water vapor and gases through the film. A film (F) according to the invention, which has a barrier layer (BS) in addition to the layers (P1) and (P2), thus has a comparison to a comparable film (with the same total thickness), which only the two layers (P1) and (P2), however, has no barrier layer (BS), reduced water vapor permeability and reduced gas permeability.

The barrier layer (BS) is, for example, a thin layer which comprises an inorganic material, the inorganic material being coated by means of vacuum coating techniques (eg PVD "physical vapor deposition" or CVD "chemical vapor deposition") on the organic polymer layer (P1) and / or (P2) can be applied.

If the barrier layer (BS) is a layer comprising at least one inorganic material, aluminum, aluminum oxides, magnesium, magnesium oxides, silicon, silicon oxides, titanium, titanium oxides, tin, tin oxides, zirconium, zirconium oxide and / or or carbon in question. In this context, particular preference is given to using oxides which can be selected from the group consisting of aluminum oxides, magnesium oxides, silicon oxides, titanium oxides, tin oxides and / or zirconium oxides. The barrier layer (BS) of inorganic material is most preferably between the two polymeric layers (P1) and (P2). The production of films with barrier layers of inorganic material is described, for example, in document EP 1036813 A1, to which reference is made at this point in full.

The barrier layer (BS) may also comprise a thin layer of inorganic-organic hybrid polymers. These polymers are known in the literature under the technical term ORMOCER polymers. A typical ORMOCER polymer can be prepared, for example, by hydrolytic polycondensation of an organofunctional silane with an aluminum compound and optionally with an inorganic oxide component. Corresponding syntheses are disclosed, for example, in the document EP 0792846 B1, to which reference is made at this point in full. Inorganic-organic hybrid polymers (ORMOCER polymers) have both inorganic and organic network structures. The structure of the inorganic silicate network structure can be carried out in the sol-gel process via the controlled hydrolysis and condensation of alkoxysilanes. By additionally incorporating metal alkoxides into the sol-gel process, the silicate network can be modified in a targeted manner. By polymerization of organofunctional groups, which are introduced by the organoalkoxylans in the material, an organic network is additionally built. The ORMOCER polymers produced in this way can be applied to the layers (P1) and / or (P2), for example by means of conventional application techniques (spraying, brushing, etc.).

Preferred embodiments of the present invention are therefore characterized in that the at least one barrier layer (BS) consists of aluminum oxides, magnesium oxides, silicon oxides, titanium oxides, tin oxides, zirconium oxides, inorganic-organic hybrid polymers (ORMOCER polymers) or mixtures thereof, in particular of silicon oxides , The term "formed" is understood according to the invention that the polymer layer at least 70 wt .-%, preferably at least 80 wt .-%, preferably at least 90 wt .-%, in particular at least 99 wt .-%, jewiels based on the total weight the barrier layer (BS), which contains previously mentioned compounds. Particularly preferred are multilayer films (F) according to the invention, in which the barrier layer (BS) is formed from silicon oxides or inorganic-organic hybrid polymers (ORMORCER polymers).

Furthermore, it is also possible that the multilayer film (F), which is the wall of the package (VP), has a barrier layer (BS) comprising both inorganic oxide components and inorganic-organic hybrid polymers (ORMOCER polymers). In addition, the barrier layer (BS) may also comprise a further organic polymeric material which itself has no barrier effect, but for example increases the mechanical stability of the barrier layer, simplifies production or better bonding of the layers (BS) and (P1) and / or (P2) causes. Particularly preferred are according to the invention multilayer films (F), in which the barrier layer (BS) of aluminum oxides, magnesium oxides, silicon oxides, titanium oxides, tin oxides, zirconium oxides and mixtures thereof and additionally at least one inorganic-organic hybrid polymer (ORMORCER polymers) is formed.

The thicker the barrier layer (BS), the greater or stronger the penetration barrier effect for gases and water vapor. The thickness of the barrier layer (BS) can therefore be chosen as a function of the desired barrier effect. For example, the barrier layer (BS) may have a layer thickness of 1 to 1000 nm (nanometers). The barrier layer (BS) preferably has a layer thickness of 5 to 500 nm, more preferably of 10 to 250 nm and particularly preferably of 10 to 150 nm (nanometers). Preferred embodiments of the present invention are therefore characterized in that the at least one barrier layer (BS) has a layer thickness of from 1.00 nm to 1000 nm, preferably from 5.00 nm to 500 nm, preferably from 10.0 nm to 250 nm, in particular from 10.0 nm to 150 nm.

In addition to the previously described layers (P1), (P2) and (BS), the multilayer film (F) may additionally comprise one or more further layers. These further layers may be, for example, intermediate layers and / or adhesive layers. It is therefore preferred according to the invention if the at least one multilayer film (F) additionally contains at least one further layer selected from the group of intermediate layers (SZ), adhesive layers (SK) and mixtures thereof.

For example, the films (F) may have further intermediate layers (SZ) in order to increase the mechanical stability. Interlayers may also prevent or minimize the permeation of polymers or residual monomers from a polymer layer into the cosmetic composition (CM).

In addition, to increase the bond strength, the films may also include one or more adhesive layers (SK) to reduce or prevent delamination (i.e., peeling or air space buildup) between two layers.

A particularly preferred product according to the invention is characterized in that the multilayer film (F) additionally contains, in addition to the first polymer layer (P1), the second polymer layer (P2) and the barrier layer (BS), one or more further layers which consist of intermediate layers (SZ ) and / or adhesive layers (SK) are selected.

If the multilayer film (F) also contains further layers in addition to the layers (P1), (P2) and (BS), suitable arrangements according to the invention of the layers are hereafter (from Innen (in agreement with the cosmetic composition (KM))

Viewed outside):

a) ^* interior ^* - layer (P1) - first adhesive layer (SK1) - layer (P2) - second adhesive layer (SK2) - barrier layer (BS) -'outside ^* ,

b) 'Interior ^* - Layer (P1) - Adhesive Layer (SK1) - Layer (P2) - Barrier Layer (BS) -' Outside ^* ,

c) 'Interior ^* - Layer (P1) - Layer (P2) - Second Adhesive Layer (SK2) - Barrier Layer (BS) -' Outside ^* ,

d) 'Interior ^* - Barrier Layer (BS) - First Adhesive Layer (SK1) - Layer (P1) - Second Adhesive Layer (SK2) - Layer (P2) -'Outside ^* ,

e) 'interior ^* - barrier layer (BS) - adhesive layer (SK) - layer (P1) - layer (P2) -' outside ^* ,

f) 'interior ^* - barrier layer (BS) - layer (S1) - adhesive layer (SK) - layer (P2) -' outside ^* ,

g) 'Interior ^* - Layer (P1) - First Adhesive Layer (SK1) - Barrier Layer (BS) - Second Adhesive Layer (SK2) - Layer (P2) -' Exterior ^* ,

h) 'Interior ^* - Layer (P1) - Adhesive Layer (SK) - Barrier Layer (BS) - Layer (P2) -' Outside ^* ,

i) 'Interior ^* - Layer (P1) - Barrier Layer (BS) - Adhesive Layer (SK) - Layer (P2) -' Outside ^*

The product according to the invention comprises as a second constituent a cosmetic composition (KM) which is packaged in the packaging (VP) and contains at least one oxidizing agent and one thickening agent from the group of xanthans.

Use of the product according to the invention is the oxidative color change. For this purpose - as already described above - usually a cosmetic composition (KM), which contains an oxidizing agent, mixed with a second, separated from (KM) preparation (B). In this way, the ready-to-use oxidative color-changing agent is prepared. Depending on whether bleaching, lightening or coloring is to be achieved with the oxidative color change, the preparation (B) may contain various ingredients. If a pure lightening or bleaching is to be achieved, the preparation contains (B) at least one alkalizing agent. If an oxidative dyeing is desired, in the preparation (B) in addition to the alkalizing often Oxidationsfarbstoffvorpodukte included. In order to ensure a sufficiently rapid miscibility of the preparations (CM) and (B), it is usually both in the preparation (CM) and in the preparation (B) to flowable, aqueous or hydrous preparations. The preparation (KM) according to the invention is an aqueous preparation. The water content of the preparation (KM) - based on the total weight of the preparation (KM) - for example, at 60 to 97 wt .-%, preferably at 75 to 93 wt .-%, preferably at 78 to 91 wt .-%, in particular at 80 to 88.0 wt .-% are. All weights in% by weight refer to the total weight of water contained in the preparation (KM), which is related to the total weight of the preparation (KM).

The cosmetic composition (KM) contains as the first essential ingredient a) at least one oxidizing agent. Preference is given to using certain oxidizing agents. It is therefore within the scope of the present invention advantageous if the cosmetic composition (KM) at least one oxidizing compound selected from the group of persulfates, chlorites, hydrogen peroxide and addition products of hydrogen peroxide to urea, melamine and sodium borate, in particular hydrogen peroxide. The use of hydrogen peroxide has proved to be particularly advantageous according to the invention.

The concentration of the oxidizing agent in the composition (KM) is determined on the one hand by the legal requirements and on the other hand by the desired effect; preferably 0.5 to 20.0 wt .-% solutions are used in water. It is therefore preferred according to the invention if the cosmetic composition (KM) contains the at least one oxidizing compound, in particular hydrogen peroxide, in a total amount of from 0.1 to 10% by weight, preferably from 0.2 to 8.0% by weight, preferably from 0.2 to 7.0 wt .-%, in particular from 0.2 to 6.0 wt .-%, based on the total weight of the cosmetic composition (KM) contains. The higher the content of oxidizing agent, in particular hydrogen peroxide, in the composition (KM), the greater the amount of gas formed in the case of a proportional decomposition of the oxidizing agent. Higher concentrated oxidizing agent-containing preparations are therefore much more difficult to store in a packaging (VP) to assemble than less concentrated preparations. The amount of hydrogen peroxide refers to 100% hydrogen peroxide.

In the course of leading to this invention work has been found that the fiction, contemporary product is particularly suitable for packaging and stable storage of highly concentrated hydrogen peroxide preparations (KM). Thus, packages (VP) according to the invention which contained preparations (KM) with 9 to 12% by weight of hydrogen peroxide showed no volume changes even after several weeks storage at elevated temperature (ie no swelling) and no unscheduled openings (ie the packages did not burst). ,

The cosmetic composition (KM) contains as second essential ingredient b) at least one thickening agent from the group of xanthans. The use of xanthan has proved to be particularly advantageous, since this even under strong acid conditions and in the presence of an oxidizing agent sufficient thickening over a long period guarantee. The thickening ensures good handling of the cosmetic composition (KM). In order to ensure a sufficient thickening, the at least one thickening agent is preferably used in certain quantitative ranges. It is therefore within the scope of the present invention advantageous if the cosmetic composition (KM) the at least one thickener selected from the group of xanthanes, in a total amount of 0.1 to 10 wt .-%, preferably from 0.2 to 8 , 0 wt .-%, preferably from 0.2 to 7.0 wt .-%, in particular from 0.2 to 6.0 wt .-%, based on the total weight of the cosmetic composition (KM) contains. In the context of the present invention, the use of xanthanes, which has a mean particle diameter Dso of 140 to 200 pm and a viscosity (0.3 wt .-% solution in 0.3% KCl) of 250 to 800 mPas (measured with Brookfield viscometer at 3 rpm). Such xanthans are commercially available, for example, under the trade name Keltrol CG-SFT from CP Kelco.

In the course of leading to this invention work has been found that by using the aforementioned special thickening agent, the cosmetic composition (KM) containing at least one oxidizing agent, in the special packaging (VP) can be assembled and stored without this package - which has a barrier layer with a Durchtrittsperrwirkung for gases and water vapor - inflates or bursts.

In this context, a very specific combination of oxidizing agent and thickener has been found to be advantageous. In a preferred embodiment, the product according to the invention is therefore characterized in that the cosmetic composition (KM) contains hydrogen peroxide and xanthan.

To further optimize the storage stability, the abovementioned compounds are preferably used in specific amounts in the preparation (KM). Particularly preferred embodiments are therefore characterized in that the cosmetic composition (KM)

a) 1, 5 to 15 wt .-% hydrogen peroxide and

b) 0.2 to 6.0 wt .-% xanthan, each based on the total weight of the cosmetic agent (KM) contains.

The cosmetic composition (KM) preferably has an acidic pH in order to avoid or reduce decomposition of the oxidizing agent used, in particular of the hydrogen peroxide. It is therefore preferred in the context of the present invention if the cosmetic composition (KM) has a pH (measured at 20 ° C.) of from pH 1.5 to 5.0, preferably from pH 2.0 to pH 4.6 , preferably from pH 2.3 to pH 4.5, in particular from pH 3 to pH 4, having. The preparation contained in the package (VP) contains the essential ingredients in an aqueous or aqueous-alcoholic carrier, which may be, for example, a cream, an emulsion, a gel or a surfactant-containing foaming solution. To adjust the desired properties of these Darreichunsformenen, the preparation (KM) may continue to contain additional active ingredients, auxiliaries and additives.

The preparation (KM) may, for example, additionally contain one or more acids for stabilizing the oxidizing agent used, in particular the hydrogen peroxide. It is therefore within the scope of the present invention preferred if the cosmetic composition (KM) additionally at least one acid selected from the group of dipicolinic acid, citric acid, acetic acid, malic acid, lactic acid, tartaric acid, hydrochloric acid, phosphoric acid, pyrophosphoric acid and its salts, benzoic acid and their salts, 1 - hydroxyethane-1, 1-diphosphonic acid, ethylenediaminetetraacetic acid and its salts, sulfuric acid and mixtures, in particular a mixture of dipicolinic acid, disodium pyrophosphate, ethylenediaminetetraacetic acid and salts thereof and 1-hydroxyethane-1, 1-diphosphonic acid.

A particularly high stabilization of the oxidizing agent, in particular the hydrogen peroxide, is achieved when the abovementioned acids are used in certain quantitative ranges. It is therefore advantageous in this context if the at least one acid, in particular the mixture of dipicolinic acid, disodium pyrophosphate, ethylenediaminetetraacetic acid and salts thereof and 1-hydroxyethane-1, 1-diphosphonic acid, in a total amount of 0.1 to 3.0 wt. -%, preferably from 0.5 to 2.5 wt .-%, preferably from 0.8 to 2.0 wt .-%, in particular from 0.9 to 1, 5 wt .-%, based on the total weight of cosmetic composition (KM).

In the following tables, particularly preferred embodiments AF 1 to AF 16 of the cosmetic composition (KM) contained in the packaging (VP) are listed (all data in% by weight, unless stated otherwise).

¹⁾ aqueous or aqueous-alcoholic carrier

²⁾ hydrogen peroxide, calculated on 100% hydrogen peroxide,

³⁾ selected from a mixture of dipicolinic acid, disodium pyrophosphate and 1-hydroxyethane-1,1-diphosphonic acid.

The above-described embodiments AF 1 to 16 are respectively packaged in packages (VP) having the below-described arrangement of the multilayer film (F) (viewed from the inside (in contact with the cosmetic composition (KM)) to the outside):

b) 'Interior ^* - Layer (P1) - Barrier Layer (BS) - Layer (P2) -' Outside ^* ,

c) 'Interior ^* - Layer (P2) - Layer (P1) -Barriereschicht (BS) -'Outside ^* ,

d) 'Interior ^* - Layer (P2) -Barriereschicht (BS) - Layer (P1) -'Outside ^* ,

e) 'Interior ^* - Barrier Layer (BS) - Layer (P1) Layer (P2) -'Outside ^* ,

f) 'interior ^* - barrier layer (BS) - layer (P2) - layer (P1) -'outside ^* ,

g) 'Interior ^* - Layer (P1) - First Adhesive Layer (SK1) - Layer (P2) - Second Adhesive Layer (SK2) - Barrier Layer (BS) -' Exterior ^* ,

h) 'Interior ^* - Layer (P1) - Adhesive Layer (SK1) - Layer (P2) - Barrier Layer (BS) -' Outside ^* ,

i) 'Interior ^* - Layer (P1) - Layer (P2) - Second Adhesive Layer (SK2) - Barrier Layer (BS) -' Outside ^* ,

j) 'interior ^* - barrier layer (BS) - first adhesive layer (SK1) - layer (P1) - second adhesive layer (SK2) - layer (P2) -'outside ^* ,

k) 'interior ^* - barrier layer (BS) - adhesive layer (SK) - layer (P1) - layer (P2) -' outside ^* ,

L) 'Interior ^* - Barrier Layer (BS) - Layer (S1) - Adhesive Layer (SK) - Layer (P2) -' Outside ^* ,

m) 'Interior ^* - Layer (P1) - First Adhesive Layer (SK1) - Barrier Layer (BS) - Second Adhesive Layer (SK2) - Layer (P2) -'Outside ^* ,

n) 'Interior ^* - Layer (P1) - Adhesive layer (SK) - Barrier layer (BS) - Layer (P2) -' Outside ^* , o) ^* Interior ^* - Layer (P1) - Barrier Layer (BS) - Adhesive Layer (SK) - Layer (P2) - 'Outside ^* .

The products according to the invention obtainable in this way have a high storage stability and a water loss within the acceptable range during storage. No bloating or delamination of the package (VP) was observed during storage of these cosmetic products according to the invention.

The product according to the invention is used for the purpose of oxidative color change. For this purpose, the preparation (KM) packaged in the packaging (VP), which is the oxidizing agent preparation, is mixed with at least one further preparation (B) to produce the ready-to-use color-changing agent. To prevent incompatibilities or to avoid a premature reaction, the preparations (KM) and (B) are formulated separately.

A particularly preferred product according to the invention is characterized in that it comprises a preparation (B) prepared separately from the preparation (KM), wherein the preparation (B) contains at least one compound selected from oxidation dye precursors, substantive dyes, alkalizing agents and mixtures thereof. Preferred products of the present invention are therefore characterized by additionally comprising at least one second cosmetic composition (KM2) comprising at least one compound selected from oxidation dye precursors, substantive dyes, alkalizing agents and mixtures thereof and which are separate from the cosmetic composition (KM). is made up.

If an oxidative staining is desired, the preparation (B) contains at least one oxidation dye precursor. Oxidation dye precursors can be subdivided into developers and couplers, the developers being mostly used in the form of their physiologically acceptable salts (eg in the form of their hydrochlorides, hydrobromides, hydrogen sulfates or sulfates) because of their greater sensitivity to oxygen. Coupler components do not form a significant color within the framework of the oxidative dyeing alone, but always require the presence of developer components. Such agents preferably contain at least one developer-type oxidation dye precursor and at least one coupler-type oxidation dye precursor. Particularly suitable developer-type oxidation dye precursors are selected from at least one compound from the group formed from p-phenylenediamine, p-toluenediamine, 2- (2-hydroxyethyl) -p-phenylenediamine, 2- (1,2-dihydroxyethyl ) -p-phenylenediamine, N, N-bis (2-hydroxyethyl) -p-phenylenediamine, 2-methoxymethyl-p-phenylenediamine, N- (4-amino-3-methylphenyl) -N- [3- (1H -imidazol-1-yl) propyl] amine, N, N'-bis (2-hydroxyethyl) -N, N'-bis (4-aminophenyl) -1, 3-diamino-propan-2-ol, bis - (2-hydroxy-5-aminophenyl) methane, 1, 3-bis- (2.5- diaminophenoxy) propan-2-ol, N, N'-bis (4-aminophenyl) -1, 4-diazacycloheptane, 1, 10-bis (2,5-diaminophenyl) -1, 4,7,10-tetraoxadecane , p-aminophenol, 4-amino-3-methylphenol, 4-amino-2-aminomethylphenol, 4-amino-2- (1, 2-dihydroxyethyl) phenol, 4-amino-2- (diethylaminomethyl) phenol, 4.5 Diamino-1 - (2-hydroxyethyl) pyrazole, 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,3- Diamino-6,7-dihydro-1 H, 5H-pyrazolo [1, 2 a] pyrazole-1 -one and their physiologically acceptable salts.

Particularly suitable coupler-type oxidation dye precursors are selected from the group formed from 3-aminophenol, 5-amino-2-methylphenol, 3-amino-2-chloro-6-methylphenol, 2-hydroxy-4-aminophenoxyethanol, 5-Amino-4-chloro-2-methylphenol, 5- (2-hydroxyethyl) amino-2-methylphenol, 2,4-dichloro-3-aminophenol, 2-aminophenol, 3-phenylenediamine, 2- (2,4 - diaminophenoxy) ethanol, 1, 3-bis (2,4-diaminophenoxy) propane, 1-methoxy-2-amino-4- (2-hydroxyethylamino) benzene, 1, 3-bis (2,4-diaminophenyl) propane, 2,6-bis (2'-hydroxyethylamino) -1-methylbenzene, 2 - ({3 - [(2-hydroxyethyl) amino] -4-methoxy-5-methylphenyl} amino) ethanol, 2 - ({3- [ (2-hydroxyethyl) amino] -2-methoxy-5-methylphenyl} amino) ethanol, 2 - ({3 - [(2-hydroxyethyl) amino] -4,5-dimethylphenyl} amino) ethanol, 2- [3- Morpholin-4-ylphenyl) amino] ethanol, 3-amino-4- (2-methoxyethoxy) -5-methylphenylamine, 1-amino-3-bis (2-hydroxyethyl) aminobenzene, resorcinol, 2-methylresorcinol, 4 Chlororesorcinol, 1, 2,4-trihydroxybenzene, 2-amino-3-hydroxypyridine, 3 -Amino-2-methylamino-6-methoxypyridine, 2,6-dihydroxy-3,4-dimethylpyridine, 3,5-diamino-2,6-dimethoxypyridine, 1-phenyl-3-methylpyrazol-5-one, 1-naphthol , 1, 5-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 1, 7-dihydroxynaphthalene, 1, 8-dihydroxynaphthalene, 4-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 4-hydroxyindoline, 6-hydroxyindoline, 7-hydroxyindoline or mixtures these compounds or their physiologically acceptable salts.

In addition, the preparation (B) may also contain one or more substantive dyes. Suitable nonionic substantive dyes may be selected from the group HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Yellow 6, HC Yellow 12, HC Orange 1, Disperse Orange 3, HC Red 1, HC Red 3, HC Red 7 , HC Red 10, HC Red 1, HC Red 13, HC Red BN, HC Blue 2, HC Blue 1 1, HC Blue 12, Disperse Blue 3, HC Violet 1, Disperse Violet 1, Disperse Violet 4, Disperse Black 9 , 1, 4-diamino-2-nitrobenzene, 2-amino-4-nitrophenol, 1, 4-bis (2-hydroxyethyl) amino-2-nitrobenzene, 3-nitro-4- (2-hydroxyethyl) aminophenol, 2- (2-hydroxyethyl) amino-4,6-dinitrophenol, 4 - [(2-hydroxyethyl) amino] -3-nitro-1-methylbenzene, 1-amino-4- (2-hydroxyethyl) amino-5 chloro-2-nitrobenzene, 4-amino-3-nitrophenol, 1- (2'-ureidoethyl) amino-4-nitrobenzene, 2 - [(4-amino-2-nitrophenyl) amino] benzoic acid, 4 - [(3 -Hydroxypropyl) amino] -3-nitrophenol, 4-nitro-o-phenylenediamine, 6-nitro-1,2,3,4-tetrahydroquinoxaline, 2-hydroxy-1,4-naphthoquinone, picramic acid and its salts, 2 Amino-6-chloro-4-nitrophenol, 4- Ethylamino-3-nitrobenzoic acid and 2-chloro-6-ethylamino-4-nitrophenol. Suitable anionic direct dyes may be selected from the group Acid Yellow 1, Yellow 10, Acid Yellow 23, Acid Yellow 36, Acid Orange 7, Acid Red 33, Acid Red 52, Pigment Red 57: 1, Acid Blue 7, Acid Green 50, Acid Violet 43, Acid Black 1, Acid Black 52, bromophenol blue and tetrabromophenol blue.

Suitable cationic substantive dyes are cationic triphenylmethane dyes such as Basic Blue 7, Basic Blue 26, Basic Violet 2 and Basic Violet 14, aromatic systems substituted with a quaternary nitrogen group such as Basic Yellow 57, Basic Red 76, Basic Blue 99 , Basic Brown 16 and Basic Brown 17, cationic anthraquinone dyes such as HC Blue 16 (Bluequat B) and direct dyes containing a heterocycle having at least one quaternary nitrogen atom, in particular Basic Yellow 87, Basic Orange 31 and Basic Red 51 , The cationic substantive dyes sold under the trademark Arianor are also suitable cationic substantive dyes according to the invention.

Dyeing processes on keratin fibers usually take place in an alkaline medium. However, in order to preserve the keratin fibers as well as the skin as much as possible, the setting of too high a pH value is not desirable. Therefore, it is preferred if the pH of the agent (B) is between 7 and 11, in particular between 8 and 10.5. For the purposes of the present invention, the pH values are pH values which were measured at a temperature of 22 ° C.

The preparation (B) may contain at least one alkalizing agent. The alkalizing agents which can be used according to the invention for adjusting the preferred pH value can be selected from the group consisting of ammonia, alkanolamines, basic amino acids and organic alkalizing agents such as (earth) alkali metal hydroxides, (earth) alkali metal metasilicates, (alkaline) alkaline metal phosphates and (Alkaline) alkali metal hydrogen phosphates. Preferred inorganic alkalizing agents are magnesium carbonate, sodium hydroxide, potassium hydroxide, sodium silicate and sodium metasilicate. Organic alkalizing agents which can be used according to the invention are preferably selected from monoethanolamine, 2-amino-2-methylpropanol and triethanolamine. The basic amino acids which can be used as alkalizing agents according to the invention are preferably selected from the group formed from arginine, lysine, ornithine and histidine, more preferably arginine. However, it has been found in the context of the investigations on the present invention that further preferred agents according to the invention are characterized in that they additionally contain an organic alkalizing agent. An embodiment of the first subject of the invention is characterized in that the agent additionally contains at least one alkalizing agent which is selected from the group consisting of ammonia, alkanolamines and basic amino acids, in particular ammonia, monoethanolamine and arginine or its compatible salts. The preparation (B) may further comprise additional active ingredients, auxiliaries and additives. Thus, for example, one or more fat constituents from the group of C 12 -C 30 fatty alcohols, C 12 -C 30 fatty acid triglycerides, C 12 -C 30 fatty acid monoglycerides, C 12 -C 30 -fatty acid diglycerides and / or hydrocarbons may be contained.

Preferably, in the preparation (B), a surface-active substance may additionally be added, such surface-active substances being referred to as surfactants or as emulsifiers, depending on the field of application. They are preferably selected from anionic, zwitterionic, amphoteric and nonionic surfactants and emulsifiers.

Preferably, the preparation (B) contains at least one anionic surfactant. Preferred anionic surfactants are fatty acids, alkyl sulfates, alkyl ether sulfates and ether carboxylic acids having 10 to 20 carbon atoms in the alkyl group and up to 16 glycol ether groups in the molecule.

Furthermore, the preparation (B) additionally contain at least one zwitterionic surfactant. Preferred zwitterionic surfactants are betaines, N-alkyl-N, N-dimethylammonium glycinates, N-acylaminopropyl-N, N-dimethylammonium glycinates, and 2-alkyl-3-carboxymethyl-3-hydroxyethylimidazolines. A preferred zwitterionic surfactant is known by the INCI name Cocamidopropyl Betaine.

In addition, it may be provided that the preparation (B) contains at least one amphoteric surfactant. Preferred amphoteric surfactants are N-alkylglycines, N-alkylpropionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropylglycines, N-alkyltaurines, N-alkylsarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids. Particularly preferred amphoteric surfactants are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and C 12 -C 18 -acylsarcosine.

Furthermore, it has proved to be advantageous if the preparation (B) contain other nonionic surfactants. Preferred nonionic surfactants are alkyl polyglycosides and alkylene oxide adducts of fatty alcohols and fatty acids with in each case 2 to 30 moles of ethylene oxide per mole of fatty alcohol or fatty acid. Preparations having excellent properties are also obtained if they contain fatty acid esters of ethoxylated glycerol as nonionic surfactants.

The nonionic, zwitterionic or amphoteric surfactants are used in proportions of from 0.1 to 45% by weight, preferably from 1 to 30% by weight and very particularly preferably from 1 to 15% by weight, based on the total weight of the preparation (B), used. The preparation (B) may additionally contain at least one thickener. With regard to these thickeners, there are no fundamental restrictions. Both organic and purely inorganic thickening agents can be used. Suitable thickening agents are anionic, synthetic polymers, cationic synthetic polymers, naturally occurring thickeners such as nonionic guar gums, scleroglucan gums or xanthan gums, gum arabic, ghatti gum, karaya gum, tragacanth gum, carrageen gum, agar-agar, locust bean gum, Pectins, alginates, starch fractions and derivatives such as amylose, amylopectin and dextrins, as well as cellulose derivatives such as methylcellulose, carboxyalkylcelluloses and hydroxyalkylcelluloses, nonionic fully synthetic polymers such as polyvinyl alcohol or polyvinylpyrrolidinone; and inorganic thickening agents, in particular phyllosilicates such as bentonite, especially smectites, such as montmorillonite or hectorite.

Furthermore, the preparation (B) further active ingredients, auxiliaries and additives may contain, such as nonionic polymers such as vinylpyrrolidinone / vinyl acrylate copolymers, polyvinylpyrrolidinone, vinylpyrrolidinone / vinyl acetate copolymers, polyethylene glycols and poly siloxanes; additional silicones, such as volatile or nonvolatile, straight-chain, branched or cyclic, crosslinked or uncrosslinked polyalkylsiloxanes (such as dimethicones or cyclomethicones), polyarylsiloxanes and / or polyalkylarylsiloxanes, in particular polysiloxanes with organofunctional groups, such as substituted or unsubstituted amines (amodimethicones), carboxyl, Alkoxy and / or hydroxyl groups (dimethicone copolyols), linear polysiloxane (A) polyoxyalkylene (B) block copolymers, grafted silicone polymers; cationic polymers such as quaternized cellulose ethers, quaternary group polysiloxanes, dimethyldiallylammonium chloride polymers, acrylamide-dimethyldiallyl-ammonium chloride copolymers, diethyl sulfate-quaternized dimethylaminoethylmethacrylate-vinylpyrrolidinone copolymers, vinylpyrrolidinone-imidazolinium methochloride copolymers, and quaternized polyvinylalcohol; zwitterionic and amphoteric polymers; anionic polymers such as polyacrylic acids or crosslinked polyacrylic acids; Structurants such as glucose, maleic acid and lactic acid, hair conditioning compounds such as phospholipids, for example, lecithin and cephalins; Perfume oils, dimethylisosorbide and cyclodextrins; fiber structure improving agents, in particular mono-, di- and oligosaccharides such as glucose, galactose, fructose, fructose and lactose; Dyes for staining the agent; Anti-dandruff agents such as Piroctone Olamine, Zinc Omadine and Climbazole; Amino acids and oligopeptides; Protein hydrolysates on animal and / or vegetable basis, as well as in the form of their fatty acid condensation products or optionally anionically or cationically modified derivatives; Fatty substances and vegetable oils; Sunscreens and UV blockers; Active ingredients such as panthenol, pantothenic acid, pantolactone, allantoin, pyrrolidinonecarboxylic acids and their salts, and bisabolol; Polyphenols, in particular hydroxycinnamic acids, 6,7-dihydroxycoumarins, hydroxybenzoic acids, catechins, tannins, leucoanthocyanidins, anthocyanidins, flavanones, flavones and flavonols; Ceramides or pseudoceramides; Vitamins, provitamins and vitamin precursors; Plant extracts; Fats and waxes such as fatty alcohols, beeswax, montan wax and paraffins; Swelling and penetrating substances such as glycerol, propylene glycol monoethyl ether, carbonates, hydrogen carbonates, guanidines, ureas and primary, secondary and tertiary phosphates; Opacifiers such as latex, styrene / PVP and styrene / acrylamide copolymers; Pearlescing agents such as ethylene glycol mono- and distearate as well as PEG-3-distearate and pigments.

The selection of these further substances will be made by the person skilled in the art according to the desired properties of the preparation (B) and of the product according to the invention. With regard to further optional components and the amounts of these components used, reference is expressly made to the relevant manuals known to the person skilled in the art. The additional active ingredients and auxiliaries are preferably used in the preparation (B) in amounts of from 0.0001 to 25% by weight, in particular from 0.0005 to 15% by weight, in each case based on the total weight of the preparation (B). used.

The following examples illustrate the present invention without, however, limiting it to: Examples:

On a film layer of polyethylene terephthalate with a thickness of 12 pm (microns), a 100 nm thick layer of silicon dioxide SiOx was vapor-deposited. Subsequently, the SiOx layer was overcoated with about 3 g / m2 ORMOCER polymer and cured. A 70 μm (microns) thick layer of polypropylene was then applied to the ORMOCER layer. From the film, a packaging (VP) was produced.

The packaging (VP) was filled in each case with the following preparation (KM1) (all data in% by weight). The oxidizing agent is preferably hydrogen peroxide.

The cosmetic composition KM1 was in each case filled into the previously described packaging (VP). Then the packages were stored at 40 ° C for 24 weeks. The packages were not bloated or delaminated.

Claims

claims

1. Cosmetic product for changing the natural color of keratinous fibers, in particular human hair, comprising

(i) at least one packaging (VP) comprising at least one multilayer film (F) which contains at least one first polymer layer (P1), at least one second polymer layer (P2) and at least one barrier layer (BS), and

a) at least one oxidizing compound and

b) at least one thickening agent selected from the group of xanthans, characterized in that the multilayer film (F) has an oxygen transmission rate (OTR) at 23 ° C and 50% relative humidity of 0.1 to 5 cc / m ² / d / bar, preferably from 0.2 to 3.5 cc / m ² / d / bar, more preferably from 0.5 to 2.5 cc / m ² / d / bar, and a water vapor permeability at 38 ° C and 100% relative humidity from 0.1 to 5 g / m ² d, preferably from 0.2 to 3.5 g / m ² d, more preferably from 0.5 to 2.5 g / m ² d.

2. Cosmetic product according to claim 1, characterized in that the adhesive strength of the film 0.1 to 10 N / 15mm, preferably 1 to 8 N / 15mm, more preferably 1, 5 to 5 N / 15mm.

3. Cosmetic product according to claim 1 or claim 2, characterized in that the sealed seam strength of the package (VP) 10 to 40 N / 15mm, preferably 15 to 35 N / 15mm, more preferably 20 to 30 N / 15mm, under the conditions of 150 ° C, 2.54 cm (1 ") and 4 kg / cm ² .

4. Cosmetic product according to one of the preceding claims, characterized in that the at least one multilayer film containing the at least one barrier layer (BS) between the at least one first polymer layer (P1) and the at least one second polymer layer (P2).

5. Cosmetic product according to one of the preceding claims, characterized in that the at least one first polymer layer (P1) of polypropylene, polyethylene, polyester, polyamide or polyvinyl alcohol, in particular of polypropylene, is formed; and / or characterized in that the at least one first polymer layer (P1) has a layer thickness of from 20.0 to 300 μm, preferably from 40.0 μm to 200 μm, preferably from 50.0 μm to 100 μm, in particular from 60.0 pm to 90.0 pm.

6. Cosmetic product according to one of the preceding claims, characterized in that the at least one second polymer layer (P2) of polyethylene terephthalate or polyethylene naphthalate, in particular of polyethylene terephthalate, is formed; and / or characterized in that the at least one second polymer layer (P2) has a layer thickness of from 1.00 μm to 100 μm, preferably from 2.50 μm to 50.0 μm, preferably from 5.00 μm to 25.0 μm, in particular from 10.0 pm to 20.0 pm.

7. Cosmetic product according to one of the preceding claims, characterized in that the at least one barrier layer (BS) of aluminum oxides, magnesium oxides, silicon oxides, titanium oxides, tin oxides, zirconium oxides, inorganic-organic hybrid polymers (ORMOCER polymers) or mixtures thereof, in particular of silicon oxides , is formed; and / or characterized in that the at least one barrier layer (BS) has a layer thickness of from 1.00 nm to 1000 nm, preferably from 5.00 nm to 500 nm, preferably from 10.0 nm to 250 nm, in particular from 10.0 nm to 150 nm.

8. Cosmetic product according to one of the preceding claims, characterized in that the cosmetic composition (KM) the at least one oxidizing compound, in particular hydrogen peroxide, in a total amount of 0.5 to 20 wt .-%, preferably from 1, 0 to 18 Wt .-%, preferably from 1, 2 to 16 wt .-%, in particular from 1, 5 to 15 wt .-%, based on the total weight of the cosmetic composition (KM) contains.

9. Cosmetic product according to one of the preceding claims, characterized in that the cosmetic composition (KM) has a pH (measured at 20 ° C) of pH 1, 5 to pH 5.0, preferably from pH 2.0 to pH 4,6, preferably from pH 2.3 to pH 4.5, in particular from pH 3 to pH 4.

10. Cosmetic product according to one of the preceding claims, characterized in that the cosmetic composition (KM) the at least one thickener selected from the group of xanthanes, in a total amount of 0.1 to 10 wt .-%, preferably from 0, 2 to 8.0 wt .-%, preferably from 0.2 to 7.0 wt .-%, in particular from 0.2 to 6.0 wt .-%, based on the total weight of the cosmetic composition (KM) contains ,