HAIR STYLING COMPOSITION CONTAINING DISACCHARIDES

Methods and aqueous compositions for styling or reshaping keratinous fibers such as human hair are provided. An aqueous styling composition includes (a) 0.5 to 15.0% by weight of at least one disaccharide; and (b) 0.01 to 20.0% by weight of at least one alkali salt and/or alkaline earth salt, wherein the composition is free of synthetic film-forming polymers.

TECHNICAL FIELD

The present disclosure concerns sugar hair styling compositions and their use for temporarily reshaping keratinous fibers.

Styling compositions for temporarily reshaping keratinous fibers, preferably hair, are known as styling products and are commonly used in the form of gels, pomades, waxes, foams and sprays.

BACKGROUND

Keratinous fibers include all fibers containing keratin, such as wool, furs and feathers, in particular human hair, especially preferably human head hair. In a temporary reshaping of keratinous fibers, no chemical (oxidation and reduction) process takes place; rather, the fibers are shaped by the application of styling products containing firming agents, such as waxes and/or polymers.

To fix hairstyles while not negatively affecting the shine and healthy and natural look of the hair, common styling products often contain synthetic polymers. These are often produced from synthetic monomers obtained by refining fossil raw materials, such as crude oil, with increased energy consumption. The synthetically produced polymers are often hardly (biologically) degradable.

As part of a more conscious approach to nature and the finite nature of raw material resources, there is an increasing demand from final consumers for natural, sustainable products, i.e. products produced using regenerative raw materials, which have been created using as little energy as possible.

Therefore, the aim of current research is to find natural components that, when used in compositions for the temporary reshaping of keratinous fibers, give them the same positive properties as the synthetic film-forming polymers used to date. In addition to excellent hold, you should also give the hairstyle shine, elasticity and smoothness and avoid the formation of a visible film on the hair, which makes it look dull. Another requirement for these natural raw materials is their processability into stable and user-friendly compositions.

Therefore, it is the task of the present disclosure to provide a composition for temporary shaping of keratinous fibers, which contains mainly natural ingredients and offers the same hold, shine and smoothness as known styling products with synthetic components.

The task is solved by providing a styling composition comprisinga) 0.5 to 15.0% by weight of at least one disaccharide andb) 0.01 to 20.0% by weight of at least one alkali salt and/or alkaline earth salt,
wherein the composition is free from synthetic film-forming polymers.

BRIEF SUMMARY

An aqueous styling composition is provided herein. The exemplary aqueous styling composition includes (a) 0.5 to 15.0% by weight of at least one disaccharide; and (b) 0.01 to 20.0% by weight of at least one alkali salt and/or alkaline earth salt, wherein the composition is free of synthetic film-forming polymers.

A method for reshaping keratinous fibers is provided herein. The exemplary method includes applying to the keratinous fibers an aqueous styling composition. The aqueous styling composition includes (a) 0.5 to 15.0% by weight of at least one disaccharide; and (b) 0.01 to 20.0% by weight of at least one alkali salt and/or alkaline earth salt, wherein the composition is free of synthetic film-forming polymers.

DETAILED DESCRIPTION

Styling composition means a cosmetic composition, which may be formulated in conventional forms of styling compositions, preferably the styling composition is sprayable, particularly preferably it is a spray formulation.

The preferred cosmetically acceptable carrier component of the styling composition is water, particularly preferably distilled water, most preferably distilled water without H2O2. The proportion of water in the styling composition is 10 to 60% by weight, preferably 15 to 50% by weight, particularly preferably 20 to 45% by weight, most preferably 25 to 35% by weight, based on the total proportion of the styling composition.

In a particularly preferred embodiment of the present disclosure, the styling composition comprises sufficient water to complete the remaining components included in the styling composition to 100% by weight, based on the total weight of the styling composition, also referred to as “ad. 100”.

The sum of all components of the styling composition is 100% by weight, based on the total amount of the styling composition.

The styling composition is free of synthetic, film-forming polymers. Synthetic film-forming polymers are all polymers, which leave a continuous film when drying, especially on the hair. Furthermore, film-forming polymers are those polymers which, when used in 0.01 to 20% by weight, preferably 1 to 5% by weight, aqueous, alcoholic or aqueous-alcoholic solution, are capable of crosslinking and/or stiffening hair, for example a strand of hair, by film formation. Preferably, crosslinking or stiffening is achieved by depositing a transparent polymer film on the hair.

Free of synthetic, film-forming polymers means as contemplated herein that the proportion of synthetic, film-forming polymers in the styling composition is a maximum of 0.5% by weight, preferably a maximum of 0.25% by weight, particularly preferably a maximum of 0.1% by weight, even more preferably a maximum of 0.05% by weight, even more preferably 0.0% by weight, based on the total proportion of the styling composition.

Preferably, the at least one disaccharide comprises sucrose (INCI: Sucrose). Particularly preferred is the at least one disaccharide sucrose (INCI: Sucrose).

Preferably, the at least one alkali salt and/or alkaline earth salt is a fluoride, chloride, bromide, iodide, nitrate, sulfate, citrate or lactate.

Alkali salt refers to all salts of the alkali metals, which include lithium, sodium, potassium, rubidium, cesium and francium. Accordingly, alkaline earth salts are the salts of the alkaline earth metals, which include beryllium, magnesium, calcium, strontium, barium and radium.

Preferably, the at least one alkali salt and/or alkaline earth salt is a salt of magnesium, sodium, potassium or calcium, particularly preferably of magnesium or sodium.

Preferably, the at least one alkali salt and/or alkaline earth salt is selected from magnesium sulfate, sodium chloride, sodium sulfate, calcium chloride and mixtures thereof, particularly preferably sodium chloride and magnesium sulfate.

Preferably, the at least one surfactant is an anionic, cationic, nonionic or amphoteric surfactant, preferably a nonionic surfactant, particularly preferably selected from PEG derivatives of hydrogenated castor oil.

The proportion of the at least one surfactant in the styling composition is preferably 0.05 to 3.5% by weight, particularly preferably 0.1 to 2.5% by weight, most preferably 0.2 to 1.0% by weight, based on the total proportion of the styling composition.

Preferably, the at least one disaccharide is included in the styling composition at a level of 1.0 to 13.0% by weight, preferably 2.0 to 10.0% by weight, more preferably 3.0 to 8.0% by weight, even more preferably 3.5 to 6.0% by weight, based on the total amount of the styling composition.

Preferably, the at least one alkali salt and/or alkaline earth salt is present in the styling composition in a proportion of 0.5 to 15.0% by weight, preferably 1.0 to 10.0% by weight, particularly preferably 1.5 to 8.0% by weight, even more preferably 2.0 to 5.0% by weight, based on the total proportion of the styling composition.

In a preferred embodiment, the proportion of the at least one disaccharide is greater than the proportion of the at least one alkali salt and/or alkaline earth salt.

Preferably, the proportion of the at least one disaccharide in the styling composition is at least 1.1-fold, more preferably at least 1.2-fold, very particularly preferably at least 1.3-fold greater than the proportion of the at least one alkali salt and/or alkaline earth salt included in the styling composition, preferably than the total proportion of all alkali salts and/or alkaline earth salts included in the styling composition.

Preferably, the composition comprises at least two different alkali salts and/or alkaline earth salts.

Preferably, in the styling composition the first of the at least two different alkali salts and/or alkaline earth salts is present in a proportion of 0.5 to 20.0% by weight, preferably 1.0 to 17.0% by weight, particularly preferably 1.5 to 15.0% by weight, even more preferably 2.0 to 13.0% by weight, based on the total amount of the styling composition, and the second of the at least two different alkali salts and/or alkaline earth salts is present in a proportion of 0.01 to 5.5% by weight, preferably 0.02 to 4.5% by weight, particularly preferably 0.03 to 4.0% by weight, even more preferably 0.04 to 3.5% by weight, in particular preferably 0.05 to 3.0% by weight, based on the total amount of the styling composition.

In a particular embodiment of the present disclosure, the proportions of the at least two different alkali salts and/or alkaline earth salts are selected from the above-mentioned preferred ranges so that they are equal. Equal means a ratio of at least two different alkali salts and/or alkaline earth salts of 1:1.

In a particular embodiment, the proportion of the at least one disaccharide, preferably sucrose, is greater than the proportion of the at least two different, preferably greater than the proportion of all alkali salts and/or alkaline earth salts included in the styling composition.

Preferably, the composition comprises at least one alkali salt and/or alkaline earth salt of chloride and one alkali salt and/or alkaline earth salt of sulfate, particularly preferably the composition comprises sodium chloride and magnesium sulfate.

Preferably, in the styling composition, the at least one alkali salt and/or alkaline earth salt of the sulfate, preferably the magnesium sulfate, is present in a proportion of 0.5 to 20.0% by weight, preferably 1.0 to 17.0% by weight, particularly preferably 1.5 to 15.0% by weight, even more preferably 2.0 to 13.0% by weight%, based on the total proportion of the styling composition, and the at least one alkali salt and/or alkaline earth salt of the chloride, preferably the sodium chloride, is present in the styling composition in a proportion of 0.01 to 5.5% by weight, preferably 0.02 to 4.5% by weight, particularly preferably 0.03 to 4.0% by weight, even more preferably 0.04 to 3.5% by weight, especially preferably 0.05 to 3.0% by weight, based on the total proportion of the styling composition.

In a preferred embodiment, the proportion of the at least one disaccharide, preferably sucrose, is greater than the proportion of the at least one alkali salt and/or alkaline earth salt of the chloride, preferably sodium chloride. Preferably, in this embodiment, the proportion of the at least one disaccharide, preferably sucrose, in the styling composition is at least 15-fold, more preferably at least 25-fold, most preferably at least 45-fold, even more preferably at least 65-fold, most preferably at least 75-fold greater than the proportion of the at least one alkali salt and/or alkaline earth salt of the chloride, preferably than the proportion of sodium chloride.

In a preferred embodiment, the proportion of the at least one disaccharide, preferably sucrose, is greater than the proportion of the at least one alkali salt and/or alkaline earth salt of the sulfate, preferably magnesium sulfate. Preferably, the proportion of the at least one disaccharide, preferably sucrose, in the styling composition is at least 1.1-fold, more preferably at least 1.2-fold, most preferably at least 1.3-fold, greater than the proportion of the at least one alkali salt and/or alkaline earth salt of the sulfate, preferably than the proportion of magnesium sulfate.

Furthermore, the styling composition may contain pH adjusting agents. Preferred agents are, for example, primary amino alcohols such as aminomethyl propanol (INCI), which is commercially available under the name AMP-ULTRA© PC, for example AMP-ULTRA© PC 2000. Further agents for adjusting the pH can be selected from alkali hydroxides, in particular sodium hydroxide and potassium hydroxide, organic acids, such as lactic acid, citric acid, hydrochloric acid, sulfuric acid, phosphoric acid, adipic acid, hydroxysuccinic acid, succinic acid, tartaric acid or malic acid, in particular from tetrahydroxypropyl ethylenediamine, known under the trade name Neutrol TE, and triethylamine (TEA). The proportion of the pH-adjusting agents in the styling composition is preferably 0.01 to 1.0% by weight, particularly preferably 0.05 to 0.1% by weight, most preferably 0.05 to 0.08% by weight, based on the total proportion of the styling composition.

Furthermore, the styling composition may contain a preservative, in particular those listed in the Cosmetic Products Regulation in Annex V (Regulation (EC) No 122+3/2009 of the European Parliament and of the Council of 30 Nov. 2009 on cosmetic products), especially preferably benzoic acid, benzoates and mixtures thereof, especially preferably sodium benzoate.

The proportion of preservatives in the styling composition is preferably 0.05 to 1.0% by weight, particularly preferably 0.075 to 0.6% by weight, most preferably 0.1 to 0.4% by weight, based on the total proportion of the styling composition.

Preferably, the styling composition is used to reshape keratinous fibers. Furthermore, it is preferably used for texturizing keratinous fibers, especially human scalp hair. Texturing, as contemplated herein, refers to changing the quality of the hair surface of a hairstyle.

It has been shown that the combination of components as contemplated herein results in a styling composition that meets the current increasing consumer demand for products with natural ingredients and, at the same time, is particularly well suited for temporarily reshaping keratinous fibers, preferably human scalp hair, while keeping the hairstyle in the desired shape, at the same time retaining its lightness and appearing neither weighed down nor stiff.

Analyzed Example

The composition of some other preferred styling compositions can be found in the following tables (data in % by weight based on the total weight of the styling composition unless otherwise stated).