DE19635359C2 - Lotion for body care - Google Patents

Description

The present invention relates to a body care lotion, d. H. a personal care product in the form of an O / W emulsion (oil-in-oil) Water emulsion). The term "lotion" is used in the context of the inven irrespective of the viscosity or consistency of the O / W emulsifier used. The lotion of the invention may be low viscosity be present and as a care milk. But you can also see higher vis Kos be until the consistency of a cream. The invention preferred lotion is less viscous than a cream.

Traditional lotions contain water as a continuous pha se. The exchange for natural plant juices is so far not been proposed.

Although plant extracts are used in conventional emulsions has been set. But plant extracts have the disadvantage that they usually not the full spectrum of all in one Plant contain contained care and active ingredients.  

In natural cosmetics there is a need for skincare the unadulterated plant juices with all their constituents share included. This need is met by conventional lotions, which are based on plant extracts, not fair.

It is a cream or an ointment-like preparation been hit, d. H. a W / O emulsion (water-in-oil emulsion), whose continuous phase is based on Vaseline and whose dis continuous phase of a sap, especially aloe Vera juice exists. Although such a cream basically fulfills the need for a skin care product, which the full dige care and active substance spectrum of a natural plant juice. A cream is due to its high lipid content However, their consistency does not apply to all applications suitable. People with oily skin are reluctant to use a cream high lipid content. A cream has that Disadvantage that it pulls in heavily and in the application one shiny fat film on the skin can leave behind.

In general, the use of plant juices and fats as Be constituents of formulations in cosmetics. An example this is known from DE 27 03 189 A1 cream, the according to claim 2 juice from fruits of the cactus Opuntia reginae and contains wool fat. This known product is a cream. Due to the high content of solids The cream described is a pasty cream that Use as a face mask during intensive care treatments.

Another example is the DE 31 29 340 A1, from the one stable emulsion of the "oil-in-water" type is known, the one Water phase, an oil phase, lecithin or saponoside as natural emulsifier and a stabilizer contains, wherein the stabilizing agent is aloe juice. The Main component of this known emulsion is water, wherein a Plant juice merely as an additional stabilizing agent is available. Furthermore, from GB 2 228 411 A a Cosmetic composition is known, which is an emulsion  Proteinaceous material, citrus fruit extract and oil. It can be one Emulsifying agent be present. The content of citrus fruit extract is low, and the content of emulsifier is according to the given compositions as large as the content of Citrus extract.

The object of the invention is to overcome the disadvantages mentioned above wind and create a lotion that meets the requirements of Natural cosmetics is fair. The task also includes the sheep a method for producing such a lotion.

The task is solved by a body care lotion consisting of

• a) a continuous phase of at least one aqueous ry sap,
• b) a discontinuous phase of at least one natural and / or nature-identical grease and / or oil, and
• c) at least one emulsifier

optionally, the composition is an antioxidant or a mixture of antioxidants and / or up to 20 Wt .-% of other ingredients selected from wasserlösli chen and fat-soluble active and care substances, adjuvants such as thickeners and bodying agents, coloring substances such as Dyes, pigments and pigment preparations and perfume fen and / or sunscreen component and / or essential oils and / or avocado oil, walnut oil, hydrogenated peanut oil, sweetmeat oil, wheat germ oil, coconut oil, soybean oil, evening primrose oil, Castor oil and various perfume oils contains.  

Preferably, the lotion according to the invention contains 44-90% by weight, in particular 55-80 wt .-% of component a), 9-55 wt .-%, esp in particular 15-40 wt .-% of component b) and 1-12 wt .-%, esp dere 2-9 wt .-% of component c).

To fully meet the requirements of natural cosmetics To be, the sap should be as unadulterated as possible Form are transferred to the lotion. That's why it's fiction according to preferred, that the aqueous vegetable juice by cold pressing from plants, fruits or their parts. If the plant juice obtained in this way in larger Contains amount of tissue ingredients, then it is recommended that this to be separated by filtration.

For the use according to the invention suitable plant juices for example, from the leaves of aloe vera, from the meat the cucumber, from the ginger root, from the Rathania root Potato, radish, radish or melon are obtained. According to a particularly preferred embodiment of the invention is a genuine Aloe Vera vegetable juice from organic Cultivation used. To obtain this juice is the gelatinous Substance from the inside of the fleshy leaves gently cold pressed. The resulting Aloe Vera juice is immediately natural stabilized active substances such as vitamin C and vitamin E. Tissue constituents are removed by filtration. The nature Leave aloe vera juice to give the lotion a low pH Value in the range of, for example, 4.0 to 4.5. Due to the Low pH value, the lotion of the invention based Aloe vera juice has a desirable bactericidal character. This natural bactericidal character even allows one complete absence of preservatives. Appropriate germ Load tests were carried out. The invention a plant juice and especially the aloe vera juice but also a (very) small amount of preservative added be set, z. For example, sodium benzoate.  

The discontinuous phase of the lotion according to the invention is a lipid phase. In the selection of the lipid phase value the use of pure vegetable oils and fats laid to the Meet the requirements of natural cosmetics. The lipid phase can consist of a single fat or a single oil. It but also mixtures of different fats, different oils or fat (s) and oil (s). before Preferably, the or the components of the lipid phase are out selects from saturated and partially unsaturated triglycerides of fatty acids, the fatty acids being 6-24, preferably 8-18 Have carbon atoms. To the invention suitable Lipids include: vegetable oils, for example, hardened palm oil or jojoba oil; (filtered) triglycerides of coconut and Oil palm; Cottonseed oil; animal waxes like tallow, beeswax, Whale wax or lanolin; pure fatty acids such as stearic acid, Lau rinsäure or myristic acid. The lipids used are in Trade available. They can be used as liquids or as a feast substances, for example in the form of flakes, powders or solid Masses available.

A particular advantage of the lotion according to the invention is to see that they do not, as in the conventional natural cosmetics customary for each individual application, but that it is a stable and storable O / W emulsion is. To ensure the stability of the emulsion is used an emulsifier component. The invention before The preferred emulsifier system consists of disodium lauryl polyglycol ether sulfosuccinate and glyceryl stearate. According to a special preferred embodiment contains the lotion according to the invention 0.3-1.5 wt .-% disodium laurylpolyglycolether sulfosuccinate and 2-5% by weight of glyceryl stearate.

As already mentioned, the lotion according to the invention can in principle Herge with complete absence of preservatives be presented. It may be advisable, at least the Li pidphase an antioxidant or a mixture of antioxidants  add. According to a preferred embodiment of the invention The lotion contains 0.01-0.1% by weight of tocopherol in combination with 0.01-0.1 wt% ascorbyl palmitate.

The lotion according to the invention may be up to 20% by weight, preferably contain up to 10 wt .-% of other ingredients. To this other ingredients include water-soluble and fat-soluble Active and care substances, aids such as thickener and Konsi stenzgeber, coloring substances such as dyes and pigments and Fragrances.

To the present invention suitable water-soluble Wirk- and Nursing agents include water-soluble vitamins, alantoin and aqueous-alcoholic distillates of plant extracts.

To the invention suitable fat-soluble active and care Contaminated include fat-soluble vitamins and lipophilic sub punched plant extracts.

According to the invention suitable bodying agents are fatty alcohols and especially primary fatty alcohols such as decylalkol, lauryl alcohol, Myristyl alcohol, cetyl alcohol, stearyl alcohol and oleyl alcohol. Cetyl alcohol is preferred according to the invention. An invention suitable thickener is xanthan gum. Other natural Verdic ker can be used, for. As alginates and Carragheenate. To The suitable coloring agents of the invention include fat soluble dyes such as fat brown B (Cassella), various Le food colorants (eg, the nature identical synthesized Food coloring β-carotene oil-soluble, liquid (E 160a) of Riedel-arom.), Pigments and pigment preparations.

The body care lotion according to the invention can moisturize lotion, an after-sun lotion, a cleansing lotion or to be a sunscreen product. When the lotion of the invention a sunscreen product contains it as a sunscreen com component components such as butylmethoxydibenzoylmethane,  Benzophenone-3, menthylbenzylidene-camphor, octylmethoxycinnamate, Octyldimethyl-PABA (or 2-ethyl-hexyl-4-dimethylaminobenzoate) and isoamyl-p-methoxycinnamate. It is also possible to use pigments reflective sunscreen effect in the invention To use lotion.

The lipid phase may further include essential oils such as bergamot oil, Ce dernholz- and -blattöl, Citronellaöl, Eucalyptusöl, Fichtennade oil, chamomile oil, camphor oil, pine needle oil, spearmint oil, lat schenkiefernöl, lavender oil, lemon balm oil, clove leaves and -flower oil, orange oil, pepper oil, peppermint oil, rose oil, cinnamon oil and lemon oil. Continue to come for the lipid phase Avocado oil, walnut oil, hydrogenated peanut oil, sweet almond oil, wheat germ oil, coconut oil, soy, evening primrose oil, castor oil and various perfume oils into consideration.

By selecting the inventively preferred Emulgatorkom surprisingly stable lotions are obtained. The Emulsifier disodium lauryl polyglycol ether sulfosuccinate is in Trade under the name "Rewopol® SBFA-30" available. The inventively preferred glyceryl stearate is commercially available under the name "Tegin® 6070" available. It has not been so far usual, the emulsifier "Rewopol® SB FA-30" in personal care To use lotions. Also, the singular use of glyceryl Stearate without further emulsifiers in the lipid phase is unusual.

The disodium lauryl polyglycol ether sulfosuccinate corresponds to the following formula:

The CTFA designation is: Disodium Laureth Sulfosuccinate. The compound has the CAS number 68 815-56-5 (Chemical Ab stracts Service Number).

The product Rewopol® SB FA 30 has the following specifications:

The product "Tegin® 6070" is designated by the manufacturer as glycerol mono distearate of plant origin. It has the following specification:

In contrast to self-emulsifying glycerol mono distearates "Tegin® 6070" has only weakly emulsifying properties.

It is not readily possible to use the natural aloe vera To transform juice into a stable lotion. Because of the low pH, which characterizes the aloe vera juice, and the high Proportion of trace elements is the selection of a suitable, the Emulsion stabilizing adjuvant system required. With Pure, distilled water can be lotions without problems produce. In contrast, pure aloe vera juice can only be with Help of a suitable emulsifier system transferred to a lotion become.

The lotion according to the invention is preferably prepared by a method Ver, in which one

• a) produces an aqueous phase by sap plants and / or fruits or their parts cold pressed and the like if necessary, filtered,
• b) a lipid phase containing at least one natural and / or or nature-identical fat and / or oil at a temperature heated in the range of 65-90 ° C, preferably 75-80 ° C, wherein the fat (or oil) or the mixture of fat and / or oil so is selected to be liquid at this temperature,
• c) the aqueous phase to a temperature in the range of 65- Heated to 90 ° C, preferably 75-80 ° C,
• d) the heated lipid phase in the heated aqueous phase dispersed using a high energy mixer to a to produce homogeneous dispersion and
• e) cool the dispersion to room temperature with stirring leaves,

wherein at least one emulsifier is added to the aqueous phase and / or the lipid phase prior to mixing, and
wherein one can add to the aqueous phase and / or the lipid phase prior to mixing and / or the dispersion obtained further constituents.

When using the inventively preferred emulsifier it is expedient to proceed so that before mixing the aqueous phase, the disodium laurylpolyglycolether sulfosuccinate and adding the glyceryl stearate to the lipid phase.

When the lipid phase of the lotion is an antioxidant or antioxidant system, then this is zweckmä the lipid phase ßigerweise added before mixing.

Also with regard to the other constituents, it is preferred depending on whether they are water-soluble or fat are soluble before mixing either the lipid phase or the be added to aqueous phase.

Due to an exact temperature control becomes a particularly stable Lotion received. It is in the method according to the invention essential that the lipid phase and the aqueous phase before Be tempered dispersion. Also the cooling of the fer The room temperature dispersion should be under controlled Temperature control done. It is preferred that the cooling with stirring for a period of at least 30 minutes he follows.

The use of a high energy mixer is in the invention essential process essential. A high mixing energy is required to obtain a stable dispersion.

For example, the dispersion in the inventive Lotion in a high energy mixer with a stirring speed  speed of 8000 to 24000 rpm, depending on the speed of stirring the stirring time is adapted accordingly. The stirring time is usually in the range of 5 to 15 minutes.

The invention will be described in greater detail below by means of an example explained.

example

A lotion according to the invention was prepared from the following constituents:

Wt .-% CTFA designation 13,00 Sweet Almond Oil 13,00 Coconut Oil 3.50 Glyceryl stearate 1.70 Cetyl Alcohol 1.00 Tocopherol acetates 0.05 tocopherol 0.05 Ascorbyl Palamitate 61,90 Aloe vera gel 0.15 Xanthan gum 2.25 Rewopol® SW FA 30 (= approx. 0.75% by weight of disodium laureth sulfosuccinate) 3.00 glycerol 0.30 allantoin 0.10 Disodium Ethylene Diamine Tetraacetic Acid

As the aqueous phase Aloe Vera gel was used, d. H. an un falsified, by cold pressing and filtering from the leaves Aloe Vera preserved sap. The lipid phase was based  on a mixture of almond oil and coconut oil. As an antioxidant The lipid phase was tocopherol and ascorbyl palmitate as well added as emulsifier glyceryl stearate. The plant juice was as emulsifier disodium lauryl polyglycol ether sulfosuccinate added. Before mixing, the other water-soluble components of the plant juice and the other fat-soluble ingredients components of the lipid phase. Then the tempe two phases to a temperature in the range of 75-80 ° C. riert. At this temperature, they were then deployed using a High energy mixer mixed at 24000 rpm and placed in a Disper transferred. The dispersion was allowed to stir while a period of more than 30 minutes to room temperature cooling down. The lotion thus obtained showed good storage stability ty.

Claims (18)

1. Lotion for body care, consisting of

• a) a continuous phase of at least one aqueous vegetable juice,
• b) a discontinuous phase of at least one natural and / or nature-identical fat and / or oil, and
• c) at least one emulsifier

where appropriate, the composition
an antioxidant or a mixture of antioxidants and / or up to 20 wt .-% of other ingredients selected from water-soluble and fat-soluble active and Pflegestof fen, auxiliaries such as thickeners and bodying agents, coloring the substances such as dyes, pigments and Pigmentbe-, fragrances , Sunscreen components, essential oils and lipid components such as avocado oil, walnut oil, hydrogenated peanut oil, sweet almond oil, wheat germ oil, coconut oil, soy bean oil, evening primrose oil, castor oil and various perfume oils. 2. Lotion according to claim 1, characterized in that they
44-90% by weight of component a),
9-55 wt .-% of component b) and
1-12 wt .-% of component c). 3. Lotion according to claim 1, characterized in that it
55-80% by weight of component a),
15-40 wt .-% of component b) and
2-9 wt .-% of component c). 4. Lotion according to one of the preceding claims, characterized ge indicates that the at least one aqueous vegetable juice by cold pressing and optionally filtering plants and / or fruits or parts thereof. 5. Lotion according to one of the preceding claims, characterized ge indicates that the at least one aqueous vegetable juice from leaves of aloe vera, from the meat of the cucumber Ginger root, ravanna root, potato, radishes, Ret tich, and / or melon was won. 6. Lotion according to one of the preceding claims, characterized ge indicates that the at least one fat and / or oil is chosen from saturated and partially unsaturated Tri glycerides of fatty acids, where the fatty acids are 6 to 24, preferably 5 to 18 carbon atoms. 7. Lotion according to one of the preceding claims, characterized ge indicates that the emulsifier component c) disodium lauryl polyglycol ether sulfosuccinate and glyceryl stearate summarizes. 8. Lotion according to claim 7, characterized in that they
0.3-1.5 wt .-% disodium laurylpolyglycolether-sulfosuc cinate and
2-5 wt .-% glyceryl stearate. 9. Lotion according to one of the preceding claims, characterized in that they are antioxidants
0.01-0.1 wt% tocopherol and
0.01-0.1 wt .-% ascorbyl palmitate. 10. Lotion according to claim 1, characterized in that the water-soluble active ingredients and care substances are selected from water-soluble vitamins, allantoin and aqueous-alkoholi distillates of plant extracts. 11. Lotion according to claim 1, characterized in that the fat-soluble active ingredients and care substances are selected from fat-soluble vitamins and in lipophilic substances taken plant extracts. 12. Lotion according to one of claims 1 to 3 and 6 to 11, there characterized in that the at least one aqueous Pflan coconut milk. 13. A process for the preparation of a lotion according to any one of claims 1 to 11, characterized in that

• a) prepares an aqueous phase by cold pressed sap plants and / or fruits or parts thereof and optionally filtered the resulting compressed juice,
• b) a lipid phase containing at least one natural and / or nature-identical fat and / or oil heated to a temperature in the range of 65 to 90 ° C, preferably 75 to 80 ° C, wherein the fat or oil or the mixture of fat and / or oil is selected to be liquid at that temperature,
• c) the aqueous phase is heated to a temperature in the range of 65 to 90 ° C, preferably 75 to 80 ° C,
• d) the heated lipid phase dispersed in the heated aqueous phase at about the same temperature using a high energy mixer to produce a homogeneous Dis persion and
• e) allowing the dispersion to cool to room temperature with stirring,

wherein at least one emulsifier is added to the aqueous phase and / or the lipid phase prior to mixing, and
wherein the aqueous phase and / or the lipid phase prior to mixing and / or the resulting dispersion further constituents can add parts. 14. The method according to claim 13, characterized in that one before mixing the aqueous phase disodium laurylpolygly colether sulfosuccinate and the lipid phase glyceryl stearate each added as an emulsifier. 15. The method according to claim 13 or 14, characterized that the lipid phase before mixing at least one An Adds antioxidant. 16. The method according to any one of claims 13 to 15, characterized ge indicates that the lipid phase before mixing cetyl stearate as bodying agent and / or at least one fat soluble active or care substance added. 17. The method according to any one of claims 13 to 16, characterized ge indicates that the aqueous phase before mixing at least one water-soluble active substance or care substance added. 18. The method according to any one of claims 13 to 17, characterized ge indicates that the cooling of the dispersion under Stir to room temperature over a period of time at least 30 minutes.