Multi-component packaging unit comprising a first preparation (a) having peroxodisulphate, microbial and / or vegetable gum and cellulose (derivative) and a second preparation (b) having carbamide peroxide

Abstract

The present invention relates to a multi-component packaging unit (kit-of-parts) for lightening keratinous fibres, said packaging unit comprising: at least two separately packaged preparations (A) and (B), wherein - preparation (A) contains (a1) at least one peroxodisulphate, (a2) at least one gum from the group consisting of microbial gums and / or vegetable gums, and (a3) cellulose and / or a derivative of cellulose, and - preparation (B) contains (b1) carbamide peroxide.

Description

[0001] Multi-component packaging unit comprising a first preparation (A) with peroxodisulfate, microbial and / or vegetable gum and cellulose (derivative) and a second preparation (B) with carbamide peroxide

[0002] The present invention is in the field of cosmetics and relates to a multi-component packaging unit (kit of parts) for lightening keratin fibers, which comprises at least two preparations (A) and (B). The first preparation (A) contains at least one peroxodisulfate, at least one microbial and / or plant gum, and at least one cellulose derivative. The second preparation (B) is characterized by its content of carbamide peroxide.

[0003] Changing the shape and color of hair represents an important area of ​​modern cosmetics. In addition to coloring, lightening one's hair color, or bleaching, is a particular desire of many consumers, as blonde hair is considered attractive and fashionable. Various bleaching products with varying bleaching power are available for this purpose.

[0004] The oxidizing agents contained in bleaching products are capable of lightening the hair fiber through the oxidative destruction of the hair's natural pigment, melanin. The oxidizing agent of choice in cosmetic products is hydrogen peroxide. For a moderate bleaching effect, hydrogen peroxide—optionally with the addition of ammonia or other alkalizing agents—is sufficient as the oxidizing agent alone. To achieve a stronger bleaching effect, a mixture of hydrogen peroxide and peroxodisulfate salts and / or peroxomonosulfate salts is typically used.

[0005] For stability reasons, hydrogen peroxide is not used as a solid, but rather in the form of an aqueous solution. However, at the alkaline pH values ​​required for bleaching, aqueous hydrogen peroxide solutions are unstable, so commercially available oxidative bleaching products usually consist of at least two components. The first component is an acidic aqueous oxidizing agent preparation containing hydrogen peroxide, often referred to as a developer solution. This is mixed with a bleaching powder shortly before use. The bleaching powder typically contains one or more persoxodisulfate salts and at least one solid alkalizing agent.

[0006] The hydrogen peroxide content in the aqueous developer solution generally does not exceed 12% by weight. Small amounts of other ingredients such as acidifiers, complexing agents, and stabilizers are also present, but the main component of the developer solution is water.

[0007] Due to the high water content, the developer solutions must be packaged in relatively bulky bottles or containers, and more packaging material is also required for the outer packaging. Furthermore, transporting the corresponding products consumes more space and energy. As users increasingly place greater value on ecologically sustainable products, there has been a long-standing search for hair bleaching products that achieve sufficiently high bleaching performance while avoiding the use of a water-based developer solution, allowing for resource-efficient packaging and transport.

[0008] If water-based developer solutions are not required, the developer can be packaged in solid, powder, or paste form. This involves using a solid-state oxidizing agent that, when mixed with water, splits off or releases hydrogen peroxide. Several approaches to this packaging form already exist in the state of the art.

[0009] DE 10 2016 219 868 A1, for example, proposes a bleaching agent based on two solid components, each packaged in a chamber of a water-soluble pouch. The first component contains potassium peroxodisulfate and ammonium peroxodisulfate, and the second component comprises a solid oxidizing agent from the group consisting of percarbamide, percarbonate, and perborate. To prepare the ready-to-use product, this two-chamber pouch is placed in water.

[0010] In DE 195 43 989 A1, two solid agents are mixed with water to produce the ready-to-use bleaching agent. The first agent is urea peroxide (i.e., carbamide peroxide or percarbamide), and the second agent is a bleaching powder containing persalts, an alkaline salt, methylcellulose, and a polyvinylpyrrolidone polymer.

[0011] In WO 2014 / 029657 A2, the two components of the bleaching agent are compressed into a multi-layer tablet containing persulfates in a first layer and a hydrogen peroxide releaser (including urea peroxide) in a second layer. This tablet is dissolved in water for use.

[0012] While these aforementioned bleaching processes eliminate the need for a water-based developer solution, their bleaching performance still requires further improvement. Therefore, the objective of the present invention was to find bleaching agents based on two solid preparations that can be mixed with water to create the application mixture and offer improved lightening performance. Hair damage should be minimized.

[0013] Surprisingly, it has now been found that this object can be achieved if a multi-component packaging unit with two separate preparations (A) and (B) is used for bleaching, wherein the preparation (A) contains the combination of at least one peroxodisulfate (a1), at least one gum from the group of microbial gums and / or vegetable gums (a2) and cellulose and / or a derivative of cellulose (a3), and the composition (B) contains carbamide peroxide.

[0014] A first subject of the present invention is a multi-component packaging unit (kit-of-parts) for lightening keratin fibers, comprising at least two separately packaged preparations (A) and (B), wherein

[0015] - the preparation (A) contains

[0016] (a1) at least one peroxodisulfate, and

[0017] (a2) at least one gum selected from the group consisting of microbial gums and / or vegetable gums, and

[0018] (a3) cellulose and / or a cellulose derivative, and

[0019] - the preparation (B) contains

[0020] (b1) Carbamide peroxide.

[0021] Keratin fibers

[0022] Keratin fibers, or keratin fibers, include fur, wool, feathers, and especially human hair. Although these products are primarily suitable for lightening keratin fibers, there is nothing in principle to prevent their use in other areas as well.

[0023] Agents for lightening keratin fibers

[0024] The term "lightening of keratin fibers" used in the invention encompasses any form of color change of the fibers in which the keratin fibers have a lighter color than the color they had before application of the agent. This particularly includes the color changes known as lightening, bleaching, and bleaching. The lightening of the hair color is achieved by the oxidizing agent(s) present in the agent. In addition to the oxidizing agent(s), the agents according to the invention can also contain coloring components, such as oxidation dye precursors and / or direct dyes, for the purpose of shading. The coloring components can slightly modify the color loss of the resulting coloration.According to the invention, however, these color-imparting components are contained in the product in such small quantities that the color impression of the keratin fibers treated with the product is still lighter than their original color. Corresponding coloring techniques can be referred to as coloring bleaching or nuanced bleaching.

[0025] Kit of parts

[0026] The multi-component packaging unit according to the invention comprises the two separate preparations (A) and (B).

[0027] The first preparation (A) contains the peroxodisulfates and can be in solid, powder, or paste form. Preparation (A) can also be referred to as bleaching powder or bleaching paste.

[0028] The second preparation (B) contains carbamide peroxide, a substance that releases or splits off hydrogen peroxide when mixed with water. Preparation (B) can be in solid, powder, or paste form. Alternatively, preparation (B) can also be referred to as a solid developer.

[0029] The first subject matter of the present invention is therefore preferably a multi-component packaging unit (kit-of-parts) for lightening keratin fibers, comprising at least two separately packaged preparations (A) and (B), wherein

[0030] - the preparation (A) is solid, powdery or pasty at room temperature (20 °C) and contains

[0031] (a1) at least one peroxodisulfate, and

[0032] (a2) at least one gum selected from the group consisting of microbial gums and / or vegetable gums, and

[0033] (a3) cellulose and / or a cellulose derivative, and

[0034] - the preparation (B) is solid, powdery or pasty at room temperature (20 °C) and contains

[0035] (b1) Carbamide peroxide.

[0036] Room temperature is defined as 20 °C.

[0037] A preparation is solid at room temperature (20°C and 1013 mbar) if it is not flowable at this temperature.

[0038] For the purposes of the present invention, "powdery" agents are understood to mean agents consisting of comminuted, solid components, whereby the comminution can be achieved by grinding, crushing, milling, or by spray drying or freeze-drying. Powders composed of solid components with different particle sizes can be used. However, it may usually be preferred for the powders to have a particle size that is as homogeneous as possible, particularly to facilitate uniform dispersion or dissolution of the powders in water.

[0039] According to the invention, the terms "paste" or "paste-like" refer to a dosage form that has a viscosity at 20°C and 1013 mbar in the range of 200,000 to 1,600,000 mPas, preferably 250,000 to 1,400,000 mPas, particularly preferably 300,000 to 1,000,000 mPas, and most preferably 400,000 to 750,000 mPas. The paste viscosity is preferably determined using a Brookfield RVDF II+ instrument, spindle no. 96, 4 revolutions per minute, at 20°C.

[0040] Preparations (A) and / or (B) can preferably be packaged in packaging suitable for solids, shaped bodies, powders, and / or pastes, such as containers, bottles, cans, blisters, or optionally coated cartons. Both preparations (A) and / or (B) can also be packaged in a film and provided in the form of one or more pouches, wherein the pouch may comprise one or more chambers.

[0041] In addition to the preparations (A) and (B), the kit-of-parts according to the invention can optionally also contain further preparations such as a pretreatment agent, a post-treatment agent and / or a conditioner.

[0042] Preparation (A)

[0043] Preparation (A) is preferably solid, powdery, or pasty at room temperature and contains the combination of at least one peroxodisulfate (a1), at least one gum from the group consisting of microbial gums and / or vegetable gums (a2), and cellulose and / or a cellulose derivative (a3). According to the invention, components (a1), (a2), and (a3) ​​are structurally different.

[0044] Thus, a preparation (A) according to the invention is characterized in that it contains

[0045] (a1) at least one peroxodisulfate, and

[0046] (a2) at least one gum selected from the group consisting of microbial gums and / or vegetable gums, and

[0047] (a3) Cellulose and / or a cellulose derivative other than (a2).

[0048] Peroxodisulfates in preparation (A)

[0049] Preparation (A) contains at least one peroxodisulfate (a1). Particularly suitable peroxodisulfates according to the invention are ammonium peroxodisulfate, potassium peroxodisulfate, and sodium peroxodisulfate. Ammonium peroxodisulfate, which can alternatively also be referred to as ammonium persulfate, is understood to mean the persulfate with the molecular formula (NH4)2S2Oa and the CAS number 7727-54-0.

[0050] Potassium peroxodisulfate, which can also be referred to as potassium persulfate, is the persulfate with the molecular formula K2S2O8 and the CAS number 7727-21-1.

[0051] Sodium peroxodisulfate, which can also be referred to as sodium persulfate, is the persulfate with the molecular formula Na2S2Os and the CAS number 7775-27-1.

[0052] In a particularly preferred embodiment, the multi-component packaging unit according to the invention is characterized in that the preparation (A) contains at least one peroxodisulfate (a1) from the group consisting of ammonium peroxodisulfate, potassium peroxodisulfate and / or sodium peroxodisulfate.

[0053] The persulfate(s) are also preferably used in specific amount ranges in preparation (A). It has been found to be preferred if preparation (A) contains one or more peroxodisulfates (a1) in a total amount of 10.0 to 80.0 wt.%, preferably 20.0 to 70.0 wt.%, more preferably 25.0 to 60.0 wt.%, even more preferably 30.0 to 55.0 wt.%, and most preferably 35.0 to 50.0 wt.%, based on the total weight of preparation (A).

[0054] Very particularly preferably, the preparation (A) contains - based on the total weight of the preparation (A) - the combination of ammonium peroxodisulfate and potassium peroxodisulfate (a1) in a total amount of 10.0 to 80.0 wt.%, preferably 20.0 to 70.0 wt.%, more preferably 25.0 to 60.0 wt.%, even more preferably 30.0 to 55.0 wt.% and very particularly preferably 35.0 to 50.0 wt.%.

[0055] In a particularly preferred embodiment, the multi-component packaging unit according to the invention is characterized in that the preparation (A) - based on the total weight of the preparation (A) - contains one or more peroxodisulfates (a1), in particular ammonium peroxodisulfate and potassium peroxodisulfate, in a total amount of 10.0 to 80.0 wt. %, preferably 20.0 to 70.0 wt. %, more preferably 25.0 to 60.0 wt. %, even more preferably 30.0 to 55.0 wt. % and most preferably 35.0 to 50.0 wt. %.

[0056] Gums from the group of microbial gums and / or vegetable gums As the second component (a2) essential to the invention, the preparation (A) contains at least one gum from the group of microbial gums and / or vegetable gums.

[0057] A rubber can alternatively be referred to as rubber, gum or in the plural as gummen.

[0058] For the purposes of the present invention, a microbial gum refers to substances produced by microorganisms through the fermentation of sugar. Examples of suitable microbial gums are xanthan gum, scleroglucan gum, gellan gum, pullulan gum, curdlan gum, grifolan gum, lentinan gum, schizophyllan gum, spirulinan gum, and krestin gum.

[0059] In a further preferred embodiment, the multi-component packaging unit according to the invention is characterized in that the preparation (A) contains at least one microbial gum (a2) which is selected from the group consisting of xanthan gum, scleroglucan gum, gellan gum, pullulan gum, curdlan gum, grifolan gum, lentinan gum, schizophyllan gum, spirulinan gum and krestin gum.

[0060] Xanthan gum, also known as xanthan gum or simply xanthan, is a naturally occurring polysaccharide obtained from sugar-containing substrates using bacteria of the genus Xanthomonas. The backbone of the xanthan polymer is formed by ß-(1->4)-linked D-glucose units. A ß-D-mannopyranosyl-(1-^4)-ß-D-glucuronopyranosyl-(1-^2)-6-O-acetyl-αD-mannopyranosyl side chain is linked to every other glucose unit in an α-(1->3)-glycosidic manner. Approximately half of the terminal mannose units of this side chain form a ketal with pyruvic acid via the hydroxy groups at positions 4 and 6. Occasionally, the acetyl group or a side chain may be completely missing. Xanthan gum has the CAS number 11138-66-2. Xanthan gum can be purchased commercially, for example, under the trade name Keltrol from CP Kelco.

[0061] Scleroglucan gum, also known as scleroglucan, is produced as a microbial epoxy polysaccharide by Sclerotium species, known as plant pests. Scleroglucan is a (1 — >3;1 — >6)-ß-D-glucan with a typical average molecular weight of 5.7 x 10 6 g / mol. It has a linear (1 — >3)-ß-D-glucan chain, in which statistically every third glucose unit is branched with a single (1 — >6)-ß-D-Glcp residue. Scleroglucan is produced industrially using Sclerotium glucanicum and Sclerotium rolfsii, which require a nutrient medium consisting of glucose, nitrate, and mineral salts. The polysaccharide is precipitated with alcohol after filtration.

[0062] Scleroglucan has the CAS number 39464-87-4 and can be purchased, for example, under the trade name Amigel, granulated from Alban Muller Int. Gellan gum, gellan, or gellan gum, is an unbranched, anionic, microbial heteroexopolysaccharide with a tetrasaccharide unit consisting of the monomers glucose, glucuronic acid, and rhamnose; some units are esterified with an L-glycerate, and every other unit is esterified with an acetate. Gellan is produced by fermentation using microorganisms such as Auromonas elodea and Sphingomonas paucimobilis under aerobic conditions. Gellan has the CAS number 71010-52-1. One manufacturer of gellan gum is Kelco, which markets the product under the trade name Kelcogel PC.

[0063] Pullulan gum, or pullulan, is a natural, water-soluble linear polysaccharide composed of maltotriose units. Three glucose units of maltotriose are linked by α-1,4-glycosidic bonds, while consecutive maltotriose units are connected by α-1,6-bonds. The molecular weight of the polymers ranges from 10,000 to 400,000 Daltons. Pullulan is produced from starch and sugar using the fungus Aureobasidium pullulans. Pullulan has the CAS number 9057-02-7. One manufacturer of pullulan is Hayashibara Biochemical, which markets the substance commercially under the name Pullulan PF 20.

[0064] Curdlan gum or curdlan is a linear (1 — >3)-ß-D-glucan [(1 — >3)-ß-D-glucopyranan], which, as a neutral microbial exopolysaccharide, is composed almost exclusively of glucose. The average molecular weight is usually in the range of 5.3 - 10 4 up to 2 x 10 6g / mol. Curdlan has the CAS number 54724-00-4.

[0065] Grifolan gum, or Grifolan, has the CAS number 104074-36-4 and is a gum related to scleroglucan. Grifolan is produced from Grifola frondosa (the common ragweed sponge, maitake).

[0066] Lentinan gum or lentinan is a gum related to scleroglucan and is used by

[0067] Lentinus edodes (sawblade, shiitake). Lentinan has the CAS number 37339-90-5. Chemically, lentinan is a glucan with five straight-chain β-1,3-glycosidically linked monomers and two β-1,6-glycosidic branches. The molecular weight of the polymers is between 400,000 and 800,000 g / mol.

[0068] Schizophyllan gum, also known as sizofilan or sizofiran, is a gum related to scleroglucan and is produced by Schizophyllum commune (common split-leaf mushroom).

[0069] The best results were obtained when preparation (A) contained at least one microbial gum (a2) from the group consisting of xanthan gum, scleroglucan gum, gellan gum, and pullulan gum; therefore, these microbial gums are particularly preferred. Xanthan gum is especially preferred.

[0070] Plant gums are the term used to describe certain plant saps (exsuates) that exude from damaged areas of the plant. The material exuding from the plant is usually in the form of a dispersion containing various heteropolysaccharides and other substances that harden to a greater or lesser degree in air and can form sticky solutions when exposed to water. In nature, gums serve to protect the plant or tree by sealing off damaged areas from the outside.

[0071] Examples of suitable vegetable gums are guar gum, agar, alginic acid, alginate, carrageenan, chicle, dammar, gellan gum, ghatti gum, gum arabic, locust bean gum, karaya, konjac flour, mastic, tara gum and tragacanth.

[0072] In a further particularly preferred embodiment, the multi-component packaging unit according to the invention is characterized in that the preparation (A) contains at least one vegetable gum (a2) which is selected from the group consisting of guar gum, agar, alginic acid, alginate, carrageenan, chicle, dammar, ghatti gum, gum arabic, locust bean gum, karaya, konjac flour, mastic, tara gum and tragacanth.

[0073] Guar gum is also known as guar gum, guaran, or guar seed flour. Guar gum is a white to gray-white powder obtained by grinding the endosperm of the seeds of the Cyamopsis tetragonolobus tree, native to India. Guar gum has the CAS number 9000-30-0 and is marketed commercially, for example, by Shree Ram Industries under the trade name Guar Gum F 21. Another particularly suitable guar gum is the raw material Activsoft S, which can be purchased from Innospec.

[0074] Agar, or agar-agar, is a heteropolysaccharide with a molecular weight ranging from 110,000 to 160,000 g / mol. Agar is isolated from the cell wall of red algae, particularly from the genera Gelidium and Gracilaria. Agar (agarose) is a mixture of gelling agarose (up to 70%) and non-gelling agaropectin (up to 30%). The former is a linear polysaccharide composed of D-galactose (approximately every 10th galactose residue is esterified with sulfuric acid at 0-6) and 3,6-anhydro-L-galactose, which are linked by alternating β-1 to 4- and α-1 to 3-glycosidic bonds. The agaropectin contains additional sulfate residues, approximately 1% uronic acids, and pyruvate bound to D-galactose (as 4,6-ketal). Purified agar has the CAS number 9002-18-0 and can be purchased from Merck, for example. Alginic acid, also called algin, is produced by brown algae. In these algae, it is the structural element of their cell walls.For use in food or cosmetics, alginic acid can be extracted from brown algae. The salts of alginic acid are commonly referred to as alginates. Algae genera used for the commercial production of alginic acid or alginate include Laminaria, Ecklonia, Macrocystis, Lessonia, Ascophylum, and Durvillea. The collected algae are roughly cleaned of dirt and impurities and dried. In a first process step, the algae are washed and ground. The alginate is then extracted and purified by filtration and precipitation. Alginic acid has the CAS number 9005-32-7. Sodium alginate, which has the CAS number 9005-38-3, can be purchased commercially, for example, from Kelco under the trade name Kelgin F.

[0075] Carrageenan, also known as carrageen, is the collective name for a group of long-chain carbohydrates found in red algae cells. Carrageenans are linear, anionic hydrocolloids that can be distinguished by their chemical structure and exhibit different properties. These different types differ in the proportion of galactose and 3,6-anhydrogalactose, as well as the number of sulfate groups. Kappa-, iota-, and lambda-carrageenan, for example, are well-suited. Carrageenan has the CAS number 9000-07-1 and can be purchased from companies such as Brenntag.

[0076] Chicle or chicle gum is a gum-like substance derived from the white latex of various Manilkara trees, a plant genus in the sapotaceae family. Chicle is obtained primarily from the Manilkara zapote tree, but also from the balata tree (Manilkara bidentata), Manilkara chicle, and Manilkara stamonidella. The latex contains approximately 20-40% gummy chicle. Chicle has the CAS number 8021-77-0.

[0077] Dammar, or damar gum, has the CAS number 9000-16-2. Dammar is a light yellow, transparent, faintly aromatic substance from the Southeast Asian dammar tree (Shorea wiesneri, Dipterocarpaceae; Malaysia, Sumatra, Borneo). Most dammar gum comes from Sumatra, where it is collected from scratched trees.

[0078] Ghatti gum can also be referred to as ghatti gum. Ghatti gum is a polysaccharide derived from the exudate of the bark of the tree Anogeissus latifolia (Combretaceae), which is native to India and Sri Lanka. Ghatti gum is a mixed calcium and magnesium salt of an acidic polysaccharide. The individual building blocks found by Smith degradation are: 2-O-substituted and 3-O-substituted L-arabinose, 3,6-di-O-substituted and 3,4,6-tri-O-substituted D-galactose, 3-O-substituted and 2,3-di-O-substituted D-mannose, D-xylose, and D-glucuronic acid, as well as traces of L-rhamnose. Ghatti gum has the CAS number 9000-28-6. Gum arabic can also be referred to as gum arabic and is marketed commercially, for example, by the company Caldic Belgium. Gum arabic has the CAS number 9000-01-5 and is the dried exudate of various acacia species from the tropical and subtropical regions of Africa, India, Central and North America.The most important is the Acacia Senegal species found in the southern Nile regions. To produce it, the dried exudate that emerges after the tree bark is scratched is bleached in air for several weeks. Gum arabic is a natural mixture of polysaccharides, the main component of which is arabic acid.

[0079] The carob tree (Ceratonia siliquä), also known in Austria as the carob tree, is a plant species in the Caesalpinioideae subfamily within the Fabaceae family. This species is native to the Mediterranean region and Western Asia. The seeds of the carob tree yield locust bean gum, which can also be called carob flour. To produce it, the endosperm of the seeds is removed and the seeds ground. Locust bean gum contains approximately 20% proteins and approximately 80% polysaccharides, mainly galactomannan, with a chain of ß-(1,4)-linked D-mannopyranoside units to which α-(1,6)-linked α-galactopyranoside units are attached, with the mannose / galactose content being between 5:1 and 4:1.

[0080] Karaya, or Karaya Gum, has the CAS number 9000-36-6 and can be purchased, for example, from Krystal Colloids Pvt. Ltd. Karaya gum is a water-emulsifiable, polysaccharide-rich secretion of tropical trees of the genus Sterculia urens.

[0081] Devil's tongue (Amorphophallus konjac, syn.: Amorphophallus rivieri) is a species of plant in the genus Amorphophallus within the Araceae family. In Austria, it is also called the tear tree. The tuber is called konjac root. The flour from the konjac root is called konjac flour.

[0082] Mastic, or mastic gum, is obtained from the mastic tree or mastic bush (Pistacia lentiscus). It is produced by the drying and hardening of the resinous balsam that exudes from the bushes or trees. Mastic has the CAS number 61789-92-2.

[0083] Tara gum is obtained from the seeds of the tara bush (Caesalpinia spinosa), native to Peru and Ecuador. The seeds are crushed and ground to produce the flour. The resulting pulp contains polysaccharides. The juice extracted from the seeds, once solidified, is also called tara gum.

[0084] Tragacanth, also known as tragacanth, gum tragacanth, or gum tragacanth, is a natural polysaccharide. It consists of the sap that dries and exudes after cutting into trunks and branches of shrubby members of the Fabaceae genus Astragalus (Astragalus), Astragalus gummifer, Astragalus bustillosii, and Astragalus tragacantha, as well as Astracantha adscendens, Astracantha microcephala, Astracantha kurdica, and Astracantha strobilifera.

[0085] A particularly strong improvement in bleaching performance was observed when a preparation (A) containing a combination of at least one microbial gum (a21) and at least one vegetable gum (a22) was used to lighten keratin fibers. In particular, very good lightening performance was achieved with the combination of xanthan gum (a21) and guar gum (a22).

[0086] In a further particularly preferred embodiment, the multi-component packaging unit according to the invention is characterized in that the preparation (A) contains at least one microbial gum (a21), in particular xanthan gum, and at least one vegetable gum (a22), in particular guar gum.

[0087] The amounts of microbial and / or vegetable gums used in preparation (A) can be selected depending on the desired bleaching performance. It has proven advantageous if preparation (A) contains one or more microbial and / or vegetable gums in a total amount of 0.1 to 8.0 wt.%, preferably 0.5 to 6.5 wt.%, more preferably 1.2 to 5.0 wt.%, and especially preferably 2.3 to 4.0 wt.%, based on the total weight of preparation (A).

[0088] In a further particularly preferred embodiment, the multi-component packaging unit according to the invention is characterized in that the preparation (A) - based on the total weight of the preparation (A) - contains one or more microbial and / or vegetable gums in a total amount of 0.1 to 8.0 wt.%, preferably from 0.5 to 6.5 wt.%, more preferably from 1.2 to 5.0 wt.% and particularly preferably from 2.3 to 4.0 wt.%.

[0089] In a further particularly preferred embodiment, the multi-component packaging unit according to the invention is characterized in that the preparation (A) - based on the total weight of the preparation (A) - contains one or more microbial gums (a21) in a total amount of 0.1 to 7.6 wt.%, preferably from 0.5 to 6.1 wt.%, more preferably from 1.2 to 4.6 wt.% and particularly preferably from 2.3 to 3.6 wt.% and one or more vegetable gums (a22) in a total amount of 0.1 to 2.0 wt.%, preferably from 0.15 to 1.6 wt.%, more preferably from 0.2 to 1.8 wt.% and particularly preferably from 0.3 to 1.2 wt.%. Celluloses and / or their derivatives

[0090] As the third component (a3) ​​essential to the invention, the preparation (A) contains cellulose and / or a derivative of cellulose.

[0091] For the purposes of this invention, cellulose is understood to mean both cellulose itself and a derivative thereof, ie a chemically or physically modified cellulose.

[0092] Cellulose is composed of ß-1,4-glycosidically linked D-glucopyranose units. In the solid state, cellulose alternates between crystalline regions and those of low order (amorphous regions). Natural and manufacturing-related impurities, particularly the presence of carboxyl groups, typically occur in the range of approximately 1%.

[0093] Cellulose which can be used according to the invention preferably has a degree of polymerization (DP), i.e. a chain length of glucopyranose units, of 10 to approximately 8000.

[0094] So-called microcrystalline cellulose, in particular, exhibits advantageous effects in this regard. Microcrystalline cellulose is obtained by partial alkaline or acid hydrolysis of cellulose, in which only the amorphous regions of the semi-crystalline cellulose are attacked and completely dissolved. The initial result is microfine cellulose, which is deaggregated into microcrystalline cellulose in aqueous suspension under mechanical force.

[0095] The degree of polymerization remaining after hydrolysis (also known as leveling-off polymerization degree = LODP) of microcrystalline cellulose is preferably in the range of approximately 30–400. Preferred celluloses are therefore microcrystalline celluloses and have a degree of polymerization of 30 to 400.

[0096] A preparation (A) containing microcrystalline cellulose (a3) ​​is most preferred.

[0097] Microcrystalline cellulose is sold by the company CFF, for example, under the trade name Sensocel stab 026 COS.

[0098] In a further embodiment, cellulose in the form of cellulose fibers can be used in preparation (A).

[0099] The term "cellulose fiber" refers to an object with a length L and a diameter D, where the length L is greater than the diameter D. Whether a fiber is in fibrous form can be determined, for example, by microscopic examination of the fiber. The length L indicates the length of a fiber, and D its diameter D, where D can be simplified as the diameter of a circle. The ratio of L to D can also be referred to as the shape factor and is, for example, in the range from 3.5 to 2000, preferably from 5 to 500, more preferably from 5 to 150.

[0100] Particularly preferred fibers are stretched, flexible fiber structures with a length-to-diameter ratio above 3:1, preferably above 5:1, and especially above 10:1. Fibers cannot absorb compressive forces in the longitudinal direction, but only tensile forces.

[0101] For example, the fibers may have a length range from 1 µm (micrometer) to 10 mm (millimeter), for example from 0.1 mm to 5 mm, such as from 0.3 mm to 3 mm. Their cross-section may be within a circle with a diameter in the range from 2 nm to 900 pm, preferably in the range from 100 nm to 700 pm. The weight or yarn count of the fibers is often given in denier or decitex, and represents the weight in grams per 9 km of yarn. For example, the fibers may, according to the present disclosure, have a yarn count in the range from 1 to 3, from 0.01 denier to 10 denier, for example from 0.1 denier to 2 denier, such as from 0.3 denier to 0.7 denier.

[0102] Cellulose fibers can be of organic origin and, for example, be obtained from plant fibers. Plant fibers occur in plants as vascular bundles in the stem, trunk, bark, or as seed processes. Plant fibers are generally predominantly composed of cellulose.

[0103] Suitable cellulose fibers can be purchased commercially, for example, from CFF GmbH & Co. KG under the trade name Sensocel® Fibers. The cellulose fibers of the Sensocel® series are cellulose-based plant fibers obtained from beech, bamboo, wheat, oats, and sugar cane, for example. The following types are particularly suitable:

[0104] For the purposes of this invention, a cellulose is also understood to mean a derivative of a cellulose, ie the cellulose can be provided with substituents by reaction with a chemical agent and / or carry further chemical functional groups.

[0105] A suitable cationic cellulose, for example, is marketed by Amerchol under the name Polymer JR® 400 and has the INCI name Polyquaternium-10. Another cationic cellulose has the INCI name Polyquaternium-24 and is marketed by Amerchol under the trade name Polymer LM-200 or Quatrisoft® LM 200. Other commercial products include the compounds Celquat® H 100, Celquat®, and L 200. These commercial products are preferred cationic celluloses.

[0106] Nonionic celluloses are particularly preferred. These can be selected, for example, from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, hydroxybutyl methyl cellulose, hydroxyethyl ethyl cellulose, hydroxypropyl methyl cellulose, methyl ethyl cellulose, and ethyl cellulose. Also well-suited to achieving the object of the invention are the nonionic celluloses from the group of cellulose ethers, from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methyl cellulose. These are marketed, for example, under the trademarks Culminal® and Benecel® and Natrosol® types by Aqualon, Hercules, or Ashland.

[0107] A hydroxypropyl cellulose with a molecular weight of 30,000 to 50,000 g / mol, which is sold, for example, under the trade name Nisso Sl® by Lehmann & Voss, Hamburg, is also particularly suitable.

[0108] Suitable anionic celluloses are, for example, carboxymethyl cellulose, carboxymethyl hydroxyethylcellulose, cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, cellulose acetate propionate carboxylate and / or their physiologically acceptable salts.

[0109] In a further very particularly preferred embodiment, a multi-component packaging unit according to the invention is characterized in that the preparation (A) contains at least one cellulose (a3) ​​or a derivative thereof which is selected from the group consisting of cellulose, microcrystalline cellulose, cellulose fibers, hydroxyethyl cellulose, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxybutyl methyl cellulose, hydroxyethyl ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl cellulose, methyl hydroxyethyl cellulose, sodium cellulose sulfate, cellulose acetate propionate carboxylate, cetyl hydroxyethyl cellulose and / or hydroxypropyl methyl cellulose stearoxy ether.

[0110] In a further explicitly particularly preferred embodiment, a multi-component packaging unit according to the invention is characterized in that the preparation (A) contains at least one cellulose (a3) ​​or a derivative thereof which is selected from the group consisting of cellulose and microcrystalline cellulose.

[0111] The celluloses and / or cellulose derivatives are preferably used in the preparation in specific quantity ranges. Particularly good results were obtained when the preparation (A) contained one or more cellulose (derivatives) (a3) ​​in a total amount of 0.01 to 5.0 wt.%, preferably 0.1 to 4.0 wt.%, more preferably 0.2 to 3.0 wt.%, and most preferably 0.3 to 0.6 wt.%, based on the total weight of the preparation (A).

[0112] Within the scope of a further explicitly particularly preferred embodiment, a multi-component packaging unit according to the invention is characterized in that the preparation (A) - based on the total weight of the preparation (A) - contains one or more cellulose (derivatives) (a3) ​​in a total amount of 0.01 to 5.0 wt.%, preferably 0.1 to 4.0 wt.%, more preferably 0.2 to 3.0 wt.%, and very particularly preferably 0.3 to 0.6 wt.%. Further components in the preparation (A)

[0113] With regard to the packaging, storage and stability of the preparation (A), it has been found to be particularly advantageous if the preparation (A) is solid, powdery or pasty at room temperature (20 °C).

[0114] If preparation (A) is to be solid or powdered, it may contain, in addition to the components (a1), (a2), and (a3), which are solid at room temperature (20 °C), other solid or powdered ingredients. In particular, the use of solid or powdered alkalizing agents and / or the use of a solid or powdered carrier is advantageous in this context.

[0115] Preferably, the preparation (A) therefore optionally additionally contains at least one compound from the group consisting of silicic acid, alkali metal silicates, alkaline earth metal silicates, alkali metal disilicates, alkaline earth metal disilicates, alkali metal carbonates and alkaline earth metal carbonates.

[0116] In a further very particularly preferred embodiment, a multi-component packaging unit according to the invention is characterized in that the preparation (A) is solid, powdery or pasty and contains at least one compound from the group consisting of silicic acid, alkali metal silicates, alkaline earth metal silicates, alkali metal disilicates, alkaline earth metal disilicates, alkali metal carbonates and alkaline earth metal carbonates.

[0117] A suitable silicon dioxide, for example, is the raw material Hydrophilie fumed silica HL 200, from Yichang Huifu Silison Miterial, with the CAS number 7631-86-9.

[0118] A particularly suitable alkali metal disilicate is, for example, sodium disilicate sold under the trade name Britesil C 265 by PQ Corporation, which has the CAS number 1344-09-8.

[0119] A very suitable basic alkaline earth metal carbonate is magnesium hydroxide carbonate with the CAS number 12125-28-9, which can be purchased under the trade name Luvomag C 013 from LuV Lehmann & Voss.

[0120] Another very suitable alkaline earth metal carbonate is magnesium carbonate.

[0121] The amounts of solid alkalizing agents or carriers used can be adjusted to the desired alkalinity or desired feel of preparation (A). It may be advantageous if preparation (A) contains—based on the total weight of preparation (A)—one or more compounds from the group consisting of silicon dioxides, alkali metal silicates, alkaline earth metal silicates, alkali metal disilicates, alkaline earth metal disilicates, alkali metal carbonates, and alkaline earth metal carbonates in a total amount of 10 to 80 wt.%, preferably 20 to 70 wt.%, and particularly preferably 30 to 60 wt.%.

[0122] If preparation (A) is to be provided in the form of a paste, it can additionally contain at least one cosmetic oil. Preferred bleaching pastes according to the invention are characterized in that the cosmetic oil is selected from natural and synthetic hydrocarbons, particularly preferably from paraffin oils, C10-C30 isoparaffins, in particular isoeicosane, polyisobutenes and polydecenes, and also 1,3-di-(2-ethylhexyl)-cyclohexane; the benzoic acid esters of linear or branched C5-22 alkanols; fatty alcohols having 6-30 carbon atoms which are unsaturated or branched and saturated or branched and unsaturated; triglycerides of linear or branched, saturated or unsaturated, optionally hydroxylated C5-30 fatty acids, in particular natural oils; the dicarboxylic acid esters of linear or branched C2-C10 alkanols;the esters of linear or branched saturated or unsaturated fatty alcohols with 2-30 carbon atoms with linear or branched saturated or unsaturated fatty acids with 2-30 carbon atoms, which may be hydroxylated; the addition products of 1 to 5 propylene oxide units with mono- or polyhydric Cs-22 alkanols; the addition products of at least 6 ethylene oxide and / or propylene oxide units with mono- or polyhydric C3-22 alkanols; the Cs-C22 fatty alcohol esters of monobasic or polybasic C2-C7 hydroxycarboxylic acids; the symmetrical, asymmetrical or cyclic esters of carbonic acid with C3-22 alkanols, C3-22 alkanediols or C3-22 alkanetriols; esters of dimers of unsaturated C12-C22 fatty acids (dimer fatty acids) with monohydric linear, branched, or cyclic C2-C15 alkanols or with polyhydric linear or branched C2-C5 alkanols; silicone oils, and mixtures of the aforementioned substances.

[0123] The oil(s) are preferably present in preparation (a) in a total amount of 16-60% by weight, particularly preferably 20-50% by weight, extraordinarily preferably 25-45% by weight, in each case based on the total weight of preparation (A).

[0124] The preparation (A) can also contain further active ingredients, auxiliaries and additives, such as fatty components such as Cs-Cs0 fatty alcohols, Cs-Cs0 fatty acid triglycerides, Ca-Cs0 fatty acid monoglycerides, Ca-Cs0 fatty acid diglycerides and / or hydrocarbons; non-ionic surfactants, anionic surfactants, cationic surfactants, amphoteric and / or zwitterionic surfactants, polymers; thickeners, structurants such as glucose, maleic acid and lactic acid, hair conditioning compounds such as phospholipids, for example lecithin and cephalins; perfume oils, dimethyl isosorbide and cyclodextrins; fiber structure-improving active ingredients, in particular mono-, di- and oligosaccharides such as glucose, galactose, fructose, fructose and lactose; dyes for coloring the agent; Anti-dandruff agents such as piroctone olamine, zinc omadine, and climbazole; amino acids and oligopeptides;Animal and / or plant-based protein hydrolysates, as well as in the form of their fatty acid condensation products or, where appropriate, anionically or cationically modified derivatives; 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, plant extracts; fats and waxes such as fatty alcohols, beeswax, montan wax, and paraffins; swelling and penetrating agents 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; Pearlescent agents such as ethylene glycol mono- and distearate and PEG-3 distearate; as well as propellants such as propane-butane mixtures, N2O, dimethyl ether, CO2 and air.

[0125] The skilled person will select these additional substances based on the desired properties of the agent. Regarding further optional components and the amounts of these components used, reference is expressly made to the relevant manuals known to the skilled person. The additional active ingredients and excipients are preferably used in the preparations according to the invention in amounts of 0.0001 to 25 wt.%, in particular 0.0005 to 15 wt.%, based on the total weight of preparation (A).

[0126] Preparation (B)

[0127] In addition to the first preparation (A), the multi-component packaging unit according to the invention comprises the second preparation (B), which is characterized in that it contains carbamide peroxide (b1).

[0128] Carbamide peroxide is the adduct of hydrogen peroxide and urea, which is commercially available, for example, in the form of a white crystalline powder. It is a water-soluble crystalline adduct that can be formed by recrystallizing urea with a 30% hydrogen peroxide solution.

[0129] Carbamide peroxide is also referred to in the literature as urea hydrogen peroxide adduct, urea peroxide, perhydrite, percarbamide, or urea peroxide. Carbamide peroxide has the molecular formula CH6N2O3 and the CAS number 124-43-6.

[0130] Carbamide peroxide can be purchased commercially from Thermo Scientific, for example.

[0131] Carbamide peroxide is the main component of preparation (B) and, upon mixing preparation (B) with water, releases the hydrogen peroxide required for the oxidation of the keratin fibers. Accordingly, it has proven preferable to use carbamide peroxide in correspondingly high amounts in preparation (B). It is particularly preferred if preparation (B) contains—based on the total weight of preparation (B)—10 to 100 wt.%, preferably 30 to 100 wt.%, more preferably 50 to 100 wt.%, and most preferably 70 to 100 wt.% of carbamide peroxide (b1).

[0132] With regard to the packaging, storage and stability of the preparation (B), it has been found to be particularly advantageous if the preparation (B) is solid, powdery or pasty at room temperature (20 °C).

[0133] In a further particularly preferred embodiment, a multi-component packaging unit according to the invention is characterized in that the preparation (B) is solid, powdery or pasty and - based on the total weight of the preparation (B) - contains 10 to 100 wt.%, preferably 30 to 100 wt.%, more preferably 50 to 100 wt.% and very particularly preferably 70 to 100 wt.% of carbamide peroxide (b1).

[0134] Most preferably, preparation (B) is solid or powdery at 20 °C.

[0135] However, preparation (B) can in principle also be provided in the form of a paste.

[0136] If preparation (B) is to be provided in the form of a paste, it can additionally contain at least one cosmetic oil. Preferred bleaching pastes according to the invention are characterized in that the cosmetic oil is selected from natural and synthetic hydrocarbons, particularly preferably from paraffin oils, C10-C30 isoparaffins, in particular isoeicosane, polyisobutenes and polydecenes, and also 1,3-di-(2-ethylhexyl)cyclohexane; the benzoic acid esters of linear or branched C5-22 alkanols; fatty alcohols having 6-30 carbon atoms, which are unsaturated or branched and saturated or branched and unsaturated; triglycerides of linear or branched, saturated or unsaturated, optionally hydroxylated C5-30 fatty acids, in particular natural oils; the dicarboxylic acid esters of linear or branched C2-C10 alkanols;the esters of linear or branched saturated or unsaturated fatty alcohols having 2-30 carbon atoms with linear or branched saturated or unsaturated fatty acids having 2-30 carbon atoms, which may be hydroxylated; the addition products of 1 to 5 propylene oxide units with mono- or polyhydric Cs-22 alkanols; the addition products of at least 6 ethylene oxide and / or propylene oxide units with mono- or polyhydric C3-22 alkanols; the Cs-C22 fatty alcohol esters of monohydric or polyhydric C2-C7 hydroxycarboxylic acids; the symmetrical, asymmetrical or cyclic esters of carbonic acid with C3-22 alkanols, C3-22 alkanediols or C3-22 alkanetriols; esters of dimers of unsaturated C12-C22 fatty acids (dimer fatty acids) with monohydric linear, branched, or cyclic C2-C15 alkanols or with polyhydric linear or branched C2-C5 alkanols; silicone oils, and mixtures of the aforementioned substances.

[0137] The oil(s) are preferably present in the preparation (B) in a total amount of 16-60% by weight, particularly preferably 20-50% by weight, extraordinarily preferably 25-45% by weight, in each case based on the total weight of the preparation (B).

[0138] Preparation (B) may also contain further active ingredients, auxiliaries and additives, such as, for example, fatty components such as, for example, Cs-Cs0 fatty alcohols, Cs-Cs0 fatty acid triglycerides, Ca-Cs0 fatty acid monoglycerides, Ca-Cs0 fatty acid diglycerides and / or hydrocarbons; non-ionic surfactants, anionic surfactants, cationic surfactants, amphoteric and / or zwitterionic surfactants, polymers; thickeners, structurants such as glucose, maleic acid and lactic acid, hair conditioning compounds such as phospholipids, for example lecithin and cephalins; perfume oils, dimethyl isosorbide and cyclodextrins; fiber structure-improving active ingredients, in particular mono-, di- and oligosaccharides such as, for example, glucose, galactose, fructose, fructose and lactose; dyes for coloring the agent; Anti-dandruff agents such as piroctone olamine, zinc omadine, and climbazole; amino acids and oligopeptides;Animal and / or plant-based protein hydrolysates, as well as in the form of their fatty acid condensation products or, where appropriate, anionically or cationically modified derivatives; 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, plant extracts; fats and waxes such as fatty alcohols, beeswax, montan wax, and paraffins; swelling and penetrating agents 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; Pearlescent agents such as ethylene glycol mono- and distearate and PEG-3 distearate; as well as propellants such as propane-butane mixtures, N2O, dimethyl ether, CO2 and air.

[0139] The expert will select these additional substances based on the desired properties of the agent. Regarding further optional components and the amounts of these components used, reference is expressly made to the relevant manuals known to the expert. The additional active ingredients and excipients are preferably used in the preparations according to the invention in amounts of 0.0001 to 25 wt.%, in particular 0.0005 to 15 wt.%, based on the total weight of preparation (B).

[0140] Ready-to-use agent from (A) and (B)

[0141] To bleach the keratin fibers, a ready-to-use bleaching agent is prepared by mixing preparations (A) and (B) with water. Preparations (A) and (B) can be mixed with water in different orders.

[0142] For example, preparations (A) and (B) can first be mixed together, after which a defined amount of water or tap water is added to this mixture of (A) and (B). Preparation (A) can also be mixed with water first, and the mixture of (A) and water is then mixed with preparation (B). Or, preparation (B) can first be mixed with water, and then the mixture of (B) and water is mixed with preparation (A).

[0143] A further subject matter of the present application is therefore a ready-to-use agent for lightening keratin fibers, which is produced by mixing preparation (A) with preparation (B) and water, wherein preparations (A) and (B) have already been disclosed in detail in the description of the first subject matter of the invention.

[0144] Process for lightening keratin fibers

[0145] The multi-component packaging unit according to the invention or the mixture of preparations (A) and (B) are used in processes for lightening keratin fibers, in particular human hair.

[0146] A further subject matter of the present application is therefore a method for lightening keratinous fibers, in which preparation (A) is mixed with preparation (B) and water in any desired order and then the application mixture thus prepared is applied to the keratinous fibers, allowed to act and rinsed out with water after a period of 5 to 60 minutes, wherein preparations (A) and (B) have already been disclosed in detail in the description of the first subject matter of the invention.

[0147] Here too, the preparations (A) and (B) can be mixed with water in different orders.

[0148] For example, preparations (A) and (B) can first be mixed together, after which a defined amount of water or tap water is added to this mixture of (A) and (B).

[0149] It is also possible to first mix preparation (A) with water, and then mix the mixture of (A) and water with preparation (B).

[0150] Or first the preparation (B) is mixed with water, and then the mixture of (B) and water is mixed with the preparation (A).

[0151] Within a period of 5 to 15 minutes after mixing preparations (A) and (B) with water, the resulting ready-to-use bleaching agent is then applied to the keratin fibers. The contact time is 5 to 60 minutes. After the contact time, the bleaching agent is rinsed out of the keratin fibers with water or water and shampoo.

[0152] In a further very particularly preferred embodiment, a process according to the invention is characterized in that the preparation (A) is first mixed with the preparation (B) and this mixture of (A) and (B) is then mixed with water.

[0153] It has been found that with this application method, ie with the premixture of (A) and (B) and the subsequent mixing of this mixture of (A) and (B) with water, the very best whitening effects could be obtained.

[0154] In a further preferred embodiment, a process according to the invention is characterized in that the preparation (B) is first mixed with water and this mixture of (B) and water is then mixed with the preparation (A).

[0155] The proportions in which preparations (A) and (B) are mixed with water can vary depending on the desired degree of lightening. Very good results were obtained when 100 parts by weight of preparation (A) were mixed with 10 to 80, preferably 20 to 70, particularly preferably 30 to 60 parts by weight of preparation (B) and 50 to 300, preferably 100 to 250, and particularly preferably 130 to 180 parts by weight of water.

[0156] In a further particularly preferred embodiment, a process according to the invention is characterized by mixing 100 parts by weight of preparation (A) with 10 to 80, preferably 20 to 70, particularly preferably 30 to 60 parts by weight of preparation (B) and 50 to 300, preferably 100 to 250 and particularly preferably 130 to 180 parts by weight of water.

[0157] With regard to the further preferred embodiments of the ready-to-use agent and method according to the invention, what has been said regarding the multi-component packaging unit according to the invention applies mutatis mutantis.

[0158] Examples

[0159] 1 .1 . Preparations (A) and (B)

[0160] The following preparations were prepared (all data in wt.% unless otherwise stated)

[0161] (AE) is a preparation (A) according to the invention containing peroxodisulfates (a1) and microbial / vegetable gum (a2) and microcrystalline cellulose (a3).

[0162] 1.2. Preparation of the ready-to-use bleaching agent and application (corresponding to 6% hydrogen peroxide)

[0163] The following ready-to-use bleaching agents (AWM) were produced:

[0164]

[0165] To prepare the application mixture AWM 1, the above-mentioned amount of preparation (AE) was mixed with 200 g of an aqueous, 6% hydrogen peroxide solution and the mixture was stirred well for 3 minutes.

[0166] To prepare the application mixture AWM 2, the above-mentioned amounts of preparation (AE) and (BE) were mixed together in a dry state, then the stated amount of water was added and the mixture was mixed well for 3 minutes.

[0167] To prepare the application mixture AWM 3, the specified amount of preparation (B) was first mixed with water and stirred thoroughly for 3 minutes. Then, the mixture prepared from (B) and water was mixed with the respective preparation (AE), and this mixture was stirred thoroughly again for 3 minutes.

[0168] Hair strands (Kerling, Euronaturhaar 4-0) were colorimetrically measured. The previously prepared application mixture was then applied to each strand of hair, left to work for 30 minutes at 30°C, and rinsed with water. The strands were then dried and colorimetrically measured again.

[0169] The color difference (AE value) of the strands before and after bleaching was calculated from the Lab measurements. The higher the AE value, the greater the color shift of the strand compared to untreated hair and the stronger the bleaching effect.

[0170] The application mixtures AWM 2 and AWM 3 showed improved whitening performance compared to the application mixture AWM 1.

[0171] The best lightening was achieved with the application mixture AWM 3, in which the preparation (B) was first premixed in water and then the preparation (A) was added to this premix of (B) and water.

[0172] 1.3. Double bleaching

[0173] Following the first bleaching, the bleaching was repeated using the respective procedure, and the twice bleached hair strands were colorimetrically measured again:

[0174] After two applications of the bleaching agent, the application mixtures AWM 2 and AWM 3 showed improved lightening performance compared to the application mixture AWM 1.

[0175] Even after applying the respective bleaching agent twice, the best lightening was achieved with the application mixture AWM 3, in which the preparation (B) was first premixed in water and then the preparation (A) was added to this premix of (B) and water.

[0176] 2. Influence of microbial / plant gum

[0177] To measure the influence of the microbial / plant gums, the application mixture (AWM3) was compared with an application mixture that did not contain any microbial / plant gums.

[0178] (AV) is a preparation of the comparison that contains peroxodisulfates (a1) but no microbial or plant gums (a2). Instead, preparation (AV) contains two cellulose derivatives.

[0179] (AE) is a preparation (A) according to the invention containing peroxodisulfates (a1) and microbial / vegetable gum (a2) and microcrystalline cellulose (a3).

[0180] To prepare the application mixtures AWM 3 and AWM 4, the specified amount of preparation (B) was first mixed with water and stirred thoroughly for 3 minutes. Then, the mixture prepared from (B) and water was mixed with the respective preparation (A), and this mixture was stirred thoroughly again for 3 minutes. The application mixtures were applied to hair strands analogously to the procedures described in sections 1.2 and 1.3, and the bleaching performance was determined.

[0181] With the application mixture AWM 3, an improved lightening effect was achieved after both one and two bleaching cycles compared to the application mixture AWM4.

Claims

Patent claims 1. Multi-component packaging unit (kit-of-parts) for lightening keratin fibers, comprising at least two separately packaged preparations (A) and (B), wherein - the preparation (A) contains (a1) at least one peroxodisulfate, and (a2) at least one gum selected from the group consisting of microbial gums and / or vegetable gums, and (a3) cellulose and / or a cellulose derivative, and - the preparation (B) contains (b1) Carbamide peroxide.

2. Multi-component packaging unit according to claim 1, characterized in that the preparation (A) contains at least one peroxodisulfate (a1) from the group consisting of ammonium peroxodisulfate, potassium peroxodisulfate and / or sodium peroxodisulfate.

3. Multi-component packaging unit according to one of claims 1 to 2, characterized in that the preparation (A) - based on the total weight of the preparation (A) - contains one or more peroxodisulfates (a1), in particular ammonium peroxodisulfate and potassium peroxodisulfate, in a total amount of 10.0 to 80.0 wt.%, preferably 20.0 to 70.0 wt.%, more preferably from 25.0 to 60.0 wt.%, even more preferably from 30.0 to 55.0 wt.% and very particularly preferably from 35.0 to 50.0 wt.%.

4. Multi-component packaging unit according to one of claims 1 to 3, characterized in that the preparation (A) contains at least one microbial gum (a2) which is selected from the group consisting of xanthan gum, scleroglucan gum, gellan gum, pullulan gum, curdlan gum, grifolan gum, lentinan gum, schizophyllan gum, spirulinan gum and krestin gum.

5. Multi-component packaging unit according to one of claims 1 to 4, characterized in that the preparation (A) contains at least one vegetable gum (a2) which is selected from the group consisting of guar gum, agar, alginic acid, alginate, carrageenan, chicle, dammar, ghatti gum, gum arabic, locust bean gum, karaya, konjac flour, mastic, tara gum and tragacanth.

6. Multi-component packaging unit according to one of claims 1 to 5, characterized in that the preparation (A) comprises at least one microbial gum (a21), in particular xanthan gum, and at least one vegetable gum (a22), in particular guar gum. Multi-component packaging unit according to one of claims 1 to 6, characterized in that the preparation (A) contains—based on the total weight of the preparation (A)—one or more microbial and / or vegetable gums in a total amount of 0.1 to 8.0 wt.%, preferably 0.5 to 6.5 wt.%, more preferably 1.2 to 5.0 wt.%, and particularly preferably 2.3 to 4.0 wt.%.Multi-component packaging unit according to one of claims 1 to 7, characterized in that the preparation (A) contains at least one cellulose (a3) ​​or a derivative thereof which is selected from the group consisting of cellulose, microcrystalline cellulose, cellulose fibers, hydroxyethyl cellulose, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxybutyl methyl cellulose, hydroxyethyl ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl cellulose, methyl hydroxyethyl cellulose, sodium cellulose sulfate, cellulose acetate propionate carboxylate, cetyl hydroxyethyl cellulose and / or hydroxypropyl methyl cellulose stearoxy ether, particularly preferably from the group consisting of cellulose and microcrystalline cellulose.Multi-component packaging unit according to one of claims 1 to 8, characterized in that the preparation (A) contains—based on the total weight of the preparation (A)—one or more cellulose (derivatives) (a3) ​​in a total amount of 0.01 to 5.0 wt.%, preferably 0.1 to 4.0 wt.%, more preferably 0.2 to 3.0 wt.%, and most preferably 0.3 to 0.6 wt.%. The multi-component packaging unit (kit-of-parts) according to one of claims 1 to 9, characterized in that the preparation (A) is solid, powdery, or pasty and contains at least one compound from the group consisting of silicic acid, alkali metal silicates, alkaline earth metal silicates, alkali metal disilicates, alkaline earth metal disilicates, alkali metal carbonates, and alkaline earth metal carbonates.Multi-component packaging unit according to one of claims 1 to 10, characterized in that the preparation (B) is solid, powdery or pasty and - based on the total weight of the preparation (B) - contains 10 to 100 wt.%, preferably 30 to 100 wt.%, more preferably 50 to 100 wt.% and very particularly preferably 70 to 100 wt.% of carbamide peroxide (b1). Ready-to-use agent for lightening keratinous fibers, which is prepared by mixing preparation (A) with preparation (B) and water, wherein preparations (A) and (B) are defined in any one of claims 1 to 11. Method for lightening keratinous fibers, in which preparation (A) is mixed with preparation (B) and water in any desired order and then the application mixture thus prepared is applied to the keratinous fibers, left to act and, after a period of 5 to 60 minutes, rinsed out with water, wherein preparations (A) and (B) are defined in any one of claims 1 to 11. Method according to claim 13, characterized in that preparation (B) is first mixed with water and this mixture of (B) and water is then mixed with preparation (A).A process according to claim 13, characterized in that preparation (A) is first mixed with preparation (B), and this mixture of (A) and (B) is then mixed with water. A process according to any one of claims 13 to 15, characterized by mixing 100 parts by weight of preparation (A) with 10 to 80, preferably 20 to 70, particularly preferably 30 to 60 parts by weight of preparation (B) and 50 to 300, preferably 100 to 250, and particularly preferably 130 to 180 parts by weight of water.

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