WO2021128119A1

WO2021128119A1 - Kit for caring for keratin materials

Info

Publication number: WO2021128119A1
Application number: PCT/CN2019/128546
Authority: WO
Inventors: Zoe LEE
Original assignee: L'oreal
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2021-07-01
Also published as: CN114828808A

Abstract

It relates to a kit comprising: 1) a first kit composition, comprising at least one substrate, at least one powder composition A, comprising: at least one gasified particles, said gasified particles comprising at least one gas enclosed in a solid enveloping material, wherein said solid enveloping material is selected so that said at least one gas is released when said solid enveloping material comes into contact with water. It also relates to a process for preparing a mask comprising said kit.

Description

KIT FOR CARING FOR KERATIN MATERIALS

TECHNICAL FIELD

The present invention relates to kits for caring for the keratin materials, in particular the skin, and in particular to a kit for formulation of cosmetic products comprising at least one kit composition as a dry part. Particularly, the present invention relates to a mask product comprising the kits, and is prepared by the kits caring for keratin materials, particularly skin. Further, the present invention relates to use of same for caring for keratin materials, especially the skin.

The present invention also relates to a method for cosmetic treatment of keratinous materials such as the skin, mucous membranes, making use of the said kit.

BACKGROUND ART

It is known that masks are highly efficient products and provide skin benefits such as hydration, moisturizing, whitening, and so on.

Conventional mask products are paste type, peel-off type, gel type, and tissue type. In tissue type category, there exists a new type of “fresh mix” mask, which, upon application, the tissue is mixed with the cosmetic composition. This type of mask is favored by the consumers for many aspects, such as a better stability of skin active compounds, a unique usage experience, and so on. In the usage experience, consumers tend to have more and more demand in terms of transformation during the application of the mask products, such transformation can be, for example, tissue texture transformation, color and odor change, even sound and/or bubble/gas generation.

There are many known bubble/gas generating ingredients. For example in the food industry, pop candy is known to generate gas and meanwhile generate popping sound.

However, the carbon dioxide generation particles are rarely in mask products for providing a desired cosmetic property.

Moreover they are not used in the cosmetic field also because of low humidity resistance.

There is a need for a composition for caring for the skin, which is efficient in the cosmetic properties such as hydration, moisturizing, skin sensory, as well as a unique usage experience like “pop candy” , and easily impregnated with improved solubility and dissolution rate.

In particular, there exists a need for a mask product which, when mixing with at least one wet part, shows an improved solubility and dissolution rate, at the same time, provides good skin conditioning benefit, in particular more hydration and unique usage experience (e.g. tactile or acoustic effect) , more skin comfort feel.

SUMMURY OF INVENTION

Therefore, in one aspect, it is necessary to provide a kit, which comprises (1) a first kit composition as a dry part, comprising at least one substrate, at least one powder composition A, comprising gasified particles and optionally auxiliary powder.

Another subject of the present invention is a process for caring for and/or making up keratin materials, especially the skin, comprising applying the mask prepared from the kit of the present invention, for example as above, wherein said caring for comprising whitening, providing hydration, detoxing and radiance effect, as well as unique experience like popping sounds.

Another subject of the present invention is use of the mask prepared from the kit of the present invention for caring for and/or making up keratin materials, especially the skin.

The present masks obtained have the following advantages:

1) Better stability trend and more hydration and nutrious sensory touch feel;

2) Improved humidity resistance of gasified particles;

3) Faster dissolving rate of powders during usage;

4) Longer lasting special sensory, especially tactile or acoustic effect (pop effect) , which thanks to a gasified particles comprising at least one gas enclosed in a solid enveloping material and gas is released on contact of the enveloping material with moisture or water; and additional ingredients as sodium bicarbonate etc. to support to generate a gas for example carbon dioxide.

DISCLOSURE OF INVENTION

The present inventors have discovered that a kit comprising:

1) a first kit composition, comprising

- at least one substrate,

- at least one powder composition A, comprising:

· at least one gasified particles, said gasified particles comprising at least one gas enclosed in a solid enveloping material, wherein said solid enveloping material is selected so that said at least one gas is released when said solid enveloping material comes into contact with water or moisture.

In an embodiment, the kit further comprises a second kit composition, comprising at least one aqueous composition B, which comprises at least one water-soluble organic solvent, wherein the first kit composition and the second kit composition are separately placed from one another.

Another subject of the present invention is use of the kit according to the present invention for caring for keratin materials, especially the skin.

Other characteristics and advantages of the present invention will emerge more clearly on reading the description and the examples that follow.

DETAILED DESCRIPTION OF INVENTION

Throughout the description, comprising the claims, the term "comprising a" should be understood as being synonymous with "comprising at least one" , unless otherwise mentioned. Moreover, the expression "at least one" used in the present description is equivalent to the expression "one or more" .

Preferably, the “keratin material” according to the present invention is the skin. By “skin” , intend all the body skin. Still preferably, the keratin material is the face, or the neck, especially the face.

In the application, unless specifically mentioned otherwise, contents, parts and percentages are expressed on a weight basis.

Gasified particles

The gasified particles provide a special sensation, for example, popping, crackling, or sizzling sound (pop effect) during product use.

The gasified particles comprise at least one gas enclosed in a solid enveloping material. The solid material is selected so that the gas is released on contact with water or moisture.

The enclosed gas may be an inert gas or an appropriate gas mixture, and is preferably carbon dioxide, oxygen, nitrogen or air, of which carbon dioxide is especially preferred, since it provides an intense sound effect.

In one embodiment, the solid enveloping material (s) is water soluble material (s) . The enveloping material is preferably based on sugar, i.e. based on mono-, oligo-or polysaccharides. The sugar particularly could be trehalose, sucrose, lactose, glucose, dextrose, maltose, fructose, disaccharides, trisaccharides, tetrasaccharides, pentasaccharides, hexasaccharides and higher oligo-or polysaccharides or sugar materials, or their mixtures.

Alternatively, other materials could be used to encapsulate the gas. Examples of alternative materials comprise water soluble polymers such as polyethylene glycols (PEG) and polyvinyl alcohols (PVA) as well as blends of these with waxes, e.g. parafin.

The particle size, for example, could be from 0.1 to 5 mm, or from 0.5 to 4.5 mm.

The manufacture of coated gasified particles is described in U.S. Pat. No. 4,275,083.

In one embodiment, the solid enveloping material is chosen from the group consisting of maltose, sucrose, trehalose or a mixture of maltose, sucrose and trehalose, and the gas is carbon dioxide.

Auxiliary Powder

According to the present invention, the kit could also comprise at least one auxiliary powder (s) . The auxiliary powders of the present invention keep the gasified particles of the present invention dry and unmelted. The examples of the auxiliary powders of the present invention comprise:

- lipophilic powder (s) , and/or hydrophilic powders, comprising metal oxides such as silica, metal silicates such as silica silicate or derivatives thereof, nylon, montmorillonite, mineral substances, sieves etc.

- water soluble polymers and salts thereof.

The water soluble polymers used can be:

(1) natural water-soluble polymer, which extracted from natural plants and animals, such as starch, vegetable gum, animal glue, silica gel etc.

(2) chemically modified natural polymers, mainly comprising modified starch and modified cellulose, such as carboxymethyl starch, starch acetate, hydroxymethyl cellulose, carboxymethyl cellulose etc.

(3) synthetic polymers such as polyethylene glycols (PEG) and polyvinyl alcohols (PVA) as well as blends of these with waxes, e.g. parafin.

The size of the auxiliary powders of the present invention, for example, could be from 2 to 25 μm, or from 5 to 20 μm, or from 5 to 15 μm.

The auxiliary powder (s) can be used in dry part (i.e. the first kit composition) or coated on gasified particles, and provide improved humidity resistance of gasified particles, especially at higher temperature and humidity condition.

The auxiliary powder (s) that may improve humidity resistance, dispensability and dissolving rate are preferable. Thanks to the presence of auxiliary powder (s) of the present invention, the kit of the present invention has improved stability while improved dispensability and dissolving rate. In an embodiment, the auxiliary powder comprises silica, silica silyate, nylon, polyalkylsilsesquioxane, or its derivatives.

The auxiliary powder further comprises at least one gas-generating agent, such as chosen from sodium bicarbonate, potassium bicarbonate, sodium carbonate, potassium carbonate, and their mixtures, preferably sodium bicarbonate so as to support generation of carbon dioxide.

Substrate (s)

The substrate used in the present invention could be all kinds of suitable substrate in the cosmetic field. Particularly, is selected from the group of:

(1) a water insoluble substrate that is a cosmetically and pharmaceutically acceptable substrate, and/or

(2) a gel substrate, comprising:

※A) a first tissue composition comprising at least one gel-forming agent that is a water soluble salt, and

※B) a second tissue composition comprising

-B1) at least one aqueous phase, and

-B2) at least one water soluble gelatinizing agent, which is gelatinizable with the polyvalent metal ion, and

-B3) optionally, at least one water soluble chelating agent of the polyvalent metal ion,

wherein the first tissue composition and the second tissue composition are separately placed from one another.

Water-insoluble substrate

For the purpose of the present invention, the term “water insoluble” means that the substrate is not dissolvable in water, nor does it breaks apart upon immersion in water.

The material of the substrate according to the present invention is not limited, and therefore any material could be used for preparing; that is the water-insoluble substrate is all types of cosmetically and pharmaceutically acceptable substrates. Two or more materials also may be used.

The water insoluble substrate is a woven or nonwoven fabric made of a fiber chosen from natural fibers, semi-natural fibers, and synthetic fibers, for example, a woven or nonwoven fabric made of a fiber of the at least one water insoluble alginate solely or together with one or more other fibers chosen from natural fibers such as cotton, pulp, bamboo and cellulose fibers, semi-natural fibers such as viscose rayon fibers, synthetic fibers such as polyester fibers, polyethylene terephthalate fibers, polyethylene fibers and polypropylene fibers, or a mixture thereof. Two or more selected from the above fibers may be used in combination.

Alternatively, the material may be a film or sheet made from at least one selected from synthetic polymers such as polyethylenes and polyvinylalcohols, semi-synthetic polymers such as bio-celluloses and alginates, and natural polymers such as polysaccharides (e.g., carageenan and xanthan gum) , mucopolysaccharides (e.g., hyaluronic acid and sodium hyaluronate) , polypeptides (e.g., γ-polyglutamic acid) and proteins (e.g., gelatin and collagen) . The film or sheet may be in the form of a gel or a jelly which may be transparent, translucent or opaque. Two or more selected from the above substances may be used in combination.

The folded sheet according to the present invention may be made of two or more layers. Thus, for example, the substrate shown in Figures 1 and 2 may be a layered substrate comprising two or more stacked layers. If a layered substrate is used, the material of each stacked layer may be the same or different from each other. For example, the layered substrate may be prepared by laminating the above film or sheet made from a synthetic polymer, a semi-synthetic polymer and/or a natural polymer on the above woven or non-woven fabric.

The substrate could be made into a wide variety of shapes and forms such as flat pads, thick pads, thin sheets of irregular thickness, depending on the desired use and characteristic of the mask. The substrate is typically designed to fit the area of the skin to which topical application is desired. For example, when the mask is applied to the face, the substrate is designed to correspond to the shape of the face avoiding the eye, nostril, and mouth areas, as necessary. Nonlimiting examples of the substrates useful in the present invention are described, for example, in the patent application WO 02/062132, or EP 2489286A.

Such water-insoluble substrates or masks with holes, perforation-like lines or cutting lines formed whereon could be obtained by cutting desired holes on the conventional masks that are available on the market. Mentions may be made of the suitable commercially available masks such as NA60RP70 from Beijing Dongfang Dayuan Non-wovens Fabric Co., Ltd. Then by using die-cutting machine ZG-10T from Hangzhou Zhiling Co. Ltd for cutting desired holes on the mask, the water-insoluble substrates of the present invention is obtained.

Gel substrate

First of all, the gel substrate according to the present invention comprises:

※A) a first substrate composition comprising at least one gel-forming agent that is a water soluble salt, and

※B) a second substrate composition comprising

- B1) at least one aqueous phase, and

- B2) at least one water soluble gelatinizing agent, which is gelatinizable with the polyvalent metal ion, and

- B3) optionally, at least one water soluble chelating agent of the polyvalent metal ion,

wherein the first substrate composition and the second substrate composition are separately placed from one another.

According to an embodiment of the present invention, the gel-forming agent of the present invention could be water soluble polyvalent metal alginic compound, for example, alkali metal alginic compound.

According to an embodiment of the present invention, the alkali metal alginic compound may be chosen from sodium alginate and potassium alginate, preferably sodium alginate.

In one embodiment of the present invention, the aqueous phase comprising at least one water soluble gelatinizing agent comprises a salt solution of calcium, a salt solution of strontium, a salt solution of zinc, a salt solution of copper, a salt solution of manganese, with an acid, in which the acid is preferably chosen from sulfuric acid and hydrochloric acid, or a mixture thereof, preferably calcium chloride, calcium sulfate, or a mixture thereof.

The gel substrate could be prepared comprising the following steps:

- (1) providing a water insoluble substrate; and

- (2) mixing 1) water insoluble substrate and 2) aqueous phase comprising at least one water soluble gelatinizing agent to form a gel substrate,

- (3) drying the gel substrate.

The gel substrate used may improve roughness of substrate and make less irritation of remained gasified particles on the skin.

Aqueous composition

According to an embodiment of the present invention, the aqueous composition comprises at least one cosmetically acceptable water-soluble organic solvent, water, such as deionized water, optionally comprising functional agent (s) that does not deteriorate mask’s properties.

According to the present invention, the water-soluble organic solvent may comprises polyol (s) or derivatives thereof and polyoxyalkylene glyceryl ether (s) .

According to the present invention, the term “polyol” means a hydrocarbon-based chain comprising at least two carbon atoms, preferably from 2 to 50 carbon atoms, preferably from 4 to 40 carbon atoms, preferably comprising from 6 to 35 carbon atoms and preferentially comprising from 10 to 32 carbon atoms, and bearing at least two hydroxyl groups.

More particularly, the polyol according to the present invention may be chosen from glycerol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, dipropylene glycol, diethylene glycol, 1, 3-propanediol, D-mannitol (or 1, 2, 3, 4, 5, 6-hexanehexol) , polyoxyethylene glyceryl ether such as glycereth-26, and sorbitol (or D-glucitol) , alone or as a mixture with other polyol glycol ethers (especially comprising from 3 to 30 carbon atoms) such as mono-, di-or tripropylene glycol (C1-C4) alkyl ethers or mono-, di-or triethylene glycol (C ₁-C ₄) alkyl ethers.

The water-soluble organic solvent, preferably dipropylene glycol, polyoxyethylene glyceryl ether and its mixture, may be present in the kit in a content of between 0%and 35%by weight relative to the total weight of the kit, in particular in a content of between 2%and 30%by weight relative to the total weight of the kit, particularly in a content of between 3%and 20%by weight relative to the total weight of the kit, more particularly in a content of between 4%and 15%by weight relative to the total weight of the kit, in particular in a content of between 5%and 10%by weight relative to the total weight of the kit.

The inventors of the present invention surprisedly found that the specific water-soluble organic solvent used in aqueous composition B (i.e. the wet part) may improve dispensability and dissolving speed, in which the water-soluble organic solvent preferably selected from dipropylene glycol, polyoxyalkylene glyceryl ether such as glycereth-26 or a mixture of dipropylene glycol and glycereth-26.

Water that is suitable for use in the present invention may be floral water such as cornflower water and/or a mineral water and/or spring water.

The aqueous composition may also comprise additional water-miscible organic solvents (at room temperature: 25℃) .

The aqueous composition may also comprise any water-soluble or water-dispersible compound that is compatible with an aqueous composition, such as gelling agents, film-forming polymers, thickeners, and mixtures thereof.

The aqueous composition may also comprise viscosity increasing agent ( “thickener” or “rheology increasing agent” ) for better stability. Representative viscosity increasing agents comprise thickening agents and gelling agents. The viscosity increasing agent (s) that may be useful in the practice of embodiments of the disclosure comprise those conventionally used in cosmetics and pharmaceutical products. Viscosity increasing agents may be selected from, for example vegetable gums, salts, acrylate-based viscosity increasing agents and mixtures thereof.

Active agents

According to an embodiment of the present invention, the kit or products of the present invention may comprise at least one functional agent, such as, at least one active agent, for example, chosen from: desquamating or moisturizing agents; depigmenting or anti-depigmenting agents; anti-glycation agents; anti-NO agents; agents for stimulating the synthesis of dermal or epidermal macromolecules and/or for preventing their degradation; agents for stimulating fibroblast or keratinocyte proliferation and/or keratinocyte differentiation; muscle relaxants or dermo-decontracting agents; free-radical scavengers or anti-pollution agents; tensioning agents; agents acting on the capillary circulation; and mixtures thereof.

It is also possible to use active agents for improving the condition of the skin in the mask, such as moisturizers or agents serving to improve the natural lipid barrier, such as ceramides, cholesterol sulfates, and/or fatty acids, and mixtures thereof. It is also possible to use enzymes that have activity on the skin, such as proteases, lipases, cerebrosidases, and/or melanases, and mixtures thereof.

As other examples of active agents that could be suitable for implementing the present invention there are agents for drugs, peptides, proteins, detectable labels, contrast reagents, pain-killing, anesthetics, antibacterial agents, anti-yeast agents, antifungal agents, antiviral agents, anti-dermititis agents, anti-pruritic agents, anti-emetics, vascular protectors, agents against motion sickness, anti-irritants, anti-inflammatory agents, immunomodulators, anti-hyperkeratolytic agents, agents for treating dry skin, antiperspirants, anti-psoriatic agents, antidandruff agents, anti-aging agents, anti-asthmatic agents and bronchodilators, sunscreen agents, antihistamines, healing agents, corticosteroids, tanning agents, and mixtures thereof.

The content of the at least one active agent or other optional components in the first kit composition and/or in the second kit composition may be adjusted as a function of the intended purpose of the kit.

Adjuvants

In a known manner, the kit of the present invention may also comprise adjuvants that are common in cosmetics and/or dermatology, such as preserving agents, antioxidants, pH modifiers (acidic or basic) , fragrances, fillers, bactericides, odor absorbers, colorants (pigments and dyes) , emulsifiers, and also lipid vesicles.

In some embodiments, there may be one or more other optional components present in the cosmetic composition, according to the disclosure, the additives selected from, preservatives, such as phenoxyethanol; surfactants, comprising including silicone surfactants, W/O and O/W surfactants; oils, comprising including cosmetic oils, fatty compounds, silicone oils such as dimethicone, botanical oils and essential oils; emulsifiers, comprising including silicone emulsifiers; elastomers; fillers such as clays, talc, organic thickeners with for instance, anionic, cationic, nonionic, and amphoteric polymeric associative thickeners and combinations thereof; carbomers; polymers; penetrants; sequestrants; fragrances; dispersants; film-forming agents; ceramides; opacifiers and combinations thereof.

Although the aforementioned optional components are given as an example, it will be appreciated that other optional components compatible with cosmetic applications known in the art may be used.

Needless to say, a person skilled in the art will take care to select this or these optional additional compound (s) , and/or the amount thereof, such that the benefits of the second composition according to the present invention are not, or are not substantially, adversely affected by the envisaged addition.

Method and use

The mask according to the present invention could be prepared comprising the following steps:

- (1) providing the substrate as defined in the present invention;

- (2) mixing the powder composition A comprising gasified particles and optionally powder (s) such as auxiliary powder as defined in the present invention;

- (3) providing the second kit composition as defined in the present invention,

- then mixing the powder composition A and the second kit composition before use, and impregnating the substrate to form a mask product.

The mask according to the present invention also could be prepared comprising the following steps:

- (1) providing the substrate as defined in the present invention;

- (3) providing the first kit composition by mixing the substrate and the powder composition A as defined in the present invention;

- (4) providing the second kit composition as defined in the present invention,

- then impregnating the first kit composition by the second kit composition before use, and the substrate to form a mask product.

Thanks to the present kit has two parts separately: (1) dry part -- (first kit composition (comprising substrate and powder (s) ) and (2) wet part -- (second kit composition (comprising aqueous composition) ) , the present kit provides increased humidity resistance of active agent, for example, gasified particles.

Thanks to the present kit has two parts (dry part and wet part) separately, just before using, the two parts are mixed to be a mask, that provides better stability trend and more hydration and nutrition sensory touch feel.

Thanks to the powder (s) and the water-soluble organic solvent used in the present invention, the present kit provides faster dissolving rate and better dispersion rate of the powder (s) of the present invention.

Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the present invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently comprises certain errors necessarily resulting from the standard deviation found in their respective measurements.

The following examples are intended to illustrate the present invention without limiting the scope as a result.

EXAMPLES

The ingredient amounts/concentrations in the compositions/formulas described below are expressed by weight.

Mask

Example 1-3:

Mask Examples 1 to 3 according to the invention were prepared as follow:

Example 4-6:

Mask Examples 4 to 6 according to the present invention were prepared as follow, wherein the dry part and wet part were separately placed, and the dry part were placed together with a tissue mask named Bicomp from Harvix as mentioned above. The total weight of the components, both dry and wet part, is 31.2 grams /1 tissue mask.

The cosmetic properties such as hydration feeling, unique usage experience such as popping sound and gas generation, humidity resistance, as well as solubility and dissolving speed of the above mentioned examples were evaluated, and the results were as shown in Table 1.

Examples 1-3 were mixed with 30 grams of water, whereas Examples 4-6 were mixed of tissue, dry part and wet part.

Hydration feeling was tested by applying the Examples on the skin, respectively, and observed the skin finish in 15 min.

Humidity was tested using a humidity detector in the stability chamber where the Examples were placed in sealed sachets, respectively, under environmental humidity of 80%and temperature of 45℃, for 2 months.

Table 1

Seen from Table 1, the units and masks of the present invention had good properties, for example, good hydration feeling, good usage experience, good humidity resistance, good dissolving speed and good stability. Furthermore, the units and masks that comprise the auxiliary powder of the present invention (e.g. silica) had better properties (hydration feeling, usage experience, humidity resistance, dissolving speed and stability) than the units and masks without the auxiliary powder (e.g. silica) . The units and masks of the present invention that comprises the water-soluble organic solvent (e.g. a mixture of glycereth-26 and dipropylene glycol) had improved properties, particularly improved dissolving speed compared to the units and masks without the water-soluble organic solvent (e.g. a mixture of glycereth-26 and dipropylene glycol) . The units and masks that comprise silica had better properties (particularly improved humidity resistance and dissolving speed) than the units and masks comprising cellulose.

Conclusion

The mask of the present invention is superior in terms of beneficial properties, e.g. good hydration feeling, usage experience, humidity resistance, dissolving speed and stability.

The term "comprising" (and its grammatical variations) as used herein is used in the inclusive sense of "having" or "comprising" and not in the exclusive sense of "consisting only of" . The terms "a" and "the" as used herein are understood to encompass the plural as well as the singular.

The foregoing description illustrates and describes the present disclosure. Additionally, the disclosure shows and describes only the preferred embodiments of the disclosure, but, as mentioned above, it is to be understood that it is capable of changes or modifications within the scope of the concept as expressed herein, commensurate with the above teachings and/or skill or knowledge of the relevant art. The described hereinabove are further intended to explain best modes known of practicing the disclosure and to enable others skilled in the art to utilize the disclosure in such, or other embodiments and with the various modifications required by the particular applications or uses disclosed herein. Accordingly, the description is not intended to limit the disclosure to the form disclosed herein. Also it is intended that the appended claims be construed to comprise alternative embodiments.

All publications, patents and patent applications cited in this specification are herein incorporated by reference, and for any and all purposes, as if each individual publication, patent or patent application were specifically and individually indicates to be incorporated by reference. In this case of inconsistencies, the present disclosure will prevail.

Claims

A kit, comprising:

1) a first kit composition, comprising

- at least one substrate,

- at least one powder composition A, comprising:

· at least one gasified particles, said gasified particles comprising at least one gas enclosed in a solid enveloping material, wherein said solid enveloping material is selected so that said at least one gas is released when said solid enveloping material comes into contact with water.
Kit according to claim 1, wherein the kit further comprises a second kit composition, comprising at least one aqueous composition B, which comprises at least one water-soluble organic solvent, wherein the first kit composition and the second kit composition are separately placed from one another.
Kit according to claim 1, wherein the solid enveloping material is selected from the group consisting of sacchrides derived therefrom that release said at least one gas from said enveloping material on contact with water.
Kit according to any one of preceding claims, wherein the solid enveloping material is chosen from the group consisting of sucrose, lactose, glucose, dextrose, maltose, fructose, disaccharides, trisaccharides, tetrasaccharides, pentasaccharides, hexasaccharides and higher oligo-or polysaccharides, or their mixtures, preferably, the solid enveloping material is chosen from the group consisting of maltose, sucrose, trehalose and a mixture of maltose, sucrose and trehalose.
Kit according to any one of preceding claims, wherein the powder composition A further comprises at least one auxiliary powder.
Kit according to claim 5, wherein the auxiliary powder comprises at least one lipophilic powder, hydrophilic powder, or mixture thereof.
Kit according to claim 5, wherein the auxiliary powder comprises silica, silica silyate, nylon, polyalkylsilsesquioxane, or derivatives thereof, and mixture thereof.
Kit according to any one of preceding claims, wherein the powder composition A further comprises at least one gas-generating agent, such as chosen from sodium bicarbonate, potassium bicarbonate, sodium carbonate, potassium carbonate, and their mixtures, preferably sodium bicarbonate.
Kit according to any one of preceding claims, wherein the gas generated is selected from carbon dioxide, oxygen, nitrogen or air and a mixture thereof, preferably, carbon dioxide (CO ₂) .
Kit according to any one of preceding claims, wherein the gasified particles is used in the amount of 0.01-30%by weight, or in the amount of 0.05-20%by weight, or in the amount of 0.1-15%by weight, even in the amount of 0.1-10%by weight, relative to the powder composition A.
Kit according to any one of preceding claims, wherein the auxiliary powder is used in the amount of 0.01-30%by weight, preferably in the amount of 0.05-20%by weight, preferably in the amount of 0.1-15%by weight, even in the amount of 0.1-10%by weight, relative to the powder composition A.
Kit according to anyone of the preceding claims, wherein the powder composition A is used in the amount of 0.5-10%by weight, or in the amount of 1-8%by weight, or in the amount of 1.2-6%by weight, or in the amount of 1.5-5%by weight, relative to the powder composition A and the second kit composition.
Kit according to any one of preceding claims, wherein the water-soluble organic solvent in aqueous composition B comprises polyols, such as comprising glycerol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, dipropylene glycol, diethylene glycol, 1,3-propanediol, D-mannitol, polyoxyalkylene glyceryl ether such as glycereth-26, and sorbitol (or D-glucitol) , alone or as a mixture with other polyol glycol ethers, especially comprising from 3 to 20 carbon atoms, such as mono-, di-or tripropylene glycol (C1-C4) alkyl ethers or mono-, di-or triethylene glycol (C1-C4) alkyl ethers.
Kit according to any one of preceding claims, wherein the water-soluble organic solvent in aqueous composition B comprises dipropylene glycol, polyoxyalkylene glyceryl ether such as glycereth-26, and a mixture of dipropylene glycol and polyoxyethylene glyceryl ether.
Mask, comprising the kit according to anyone of the preceding claims.