LV12398B - SKIN CARE FOR CLEANING SPECIAL SKIN SKIN - Google Patents

Abstract

This invention involves a remedy to clean very dirty skin, especially that of hands. It is not necessary to add water to the remedy. This remedy is particularly effective in the cleansing of oil, black fuel oil, bitumen, petrolatum, fat, soot, tree resins, soil, and grass stains. This invention consists of a skin caring jelly paste containing a pH between the limits of 5.5 to 7.5. It consists of water, cocamide DEA, and terpenes of citrus fruits in combination with organic dissolvent, deodorized with white spirit, in a correlation of 1:1. It also contains anion surfactant, sodium lauryl sulphate, silica as a thickening agent, citric acid for the adjustment of pH composition, oxidized polyethylene micro pellets, and pigment.

Description

SKIN PREPARATION, SPECIAL FOR HAND CLEANING

The invention relates to personal care products, in particular to a product for cleaning heavily soiled skin, especially hands, which requires no additional water and is particularly effective in removing oils, fuel oil, bitumen, petroleum jelly, grease, soot, tree resin, soil, weed stains. .

There are two types of detergents for removing dirt and oils; some contain mainly natural or synthetic soaps, while others contain synthetic detergents. It is known that soap is not effective enough to remove ingested dirt and gummy dirt. Generally, cleaners with similar capabilities are synthetic and contain organic solvents and their derivatives that are aggressively acting on the skin. Such highly complex compositions, for example, are described in International Patent Application PCT / US97 / 07072, WO 98/23713. They contain anionic and amphoteric surfactants and polar solvents and are based on the composition's ability to encapsulate or emulsify dirt or oil, thereby removing it from the surface. Comma Oil & Chemicals Limited (GB) (web address: http://www.commaoil.com), a natural remedy for cleaning hands and feet of dirt and oil containing water, surfactant, thickener, cocamide, has been selected as a prototype of this invention polymer microspheres, lanolins, preservatives, dyes and citrus products. It is a sparing agent without corrosive solvents, but the fact that no organic solvent is present at all in this composition does not provide sufficient cleaning performance in case of particularly sticky dirt. In addition, a small amount of water should be added during application to allow foaming and cleaning. Finally, the hands are rinsed with water. This is not convenient enough and increases water consumption, which can be problematic in places where there is not enough water available.

The object of the invention is to extend the spectrum of soluble dirt and to ensure complete removal of the dirt without the addition of water in the cleaning process, while providing a gentle effect on the skin.

To this end, a skin-care gel paste consisting of water, coconut oil fatty acid diethanolamide (cocamide DEA), a citrus product, a surfactant, a thickener, a colorant tartrazine, and a polymeric microspheres in the form of a citrus-based organic compound is provided. .

According to the invention, citrus fruit terpenes, a volatile fraction of sweet orange (Citrus Sinensis) oil, in combination with an organic solvent, preferably deodorized white spirit, are provided for dissolving water-insoluble dirt. This results in a highly effective remover of strong, sticky dirt that is non-aggressive to the skin, even when used frequently. This combination is made from natural products with a pleasant citrus smell. The main component of orange terpenes is limonene - 97-98%. Besides, this ethereal oil also contains insignificant amounts of octane, nonanal and decanal.

As the anionic surfactant, the composition includes sodium laurethyl ether sulfate (sodium laureth sulfate), which has good washing, wetting, emulsifying and foaming properties. The substance is also active in hard water and is well biodegradable. In contrast, foam stabilization and viscosity enhancement of the composition uses the nonionic surfactant cocamide DEA, which at the same time ensures that the skin is not greasy. This substance is also readily biodegradable.

Polymer microspheres are added to the mechanical cleanser compositions for mechanical removal of dirt from the skin. According to the present invention, the composition comprises oxidized polyethylene microspheres with rounded shapes and a particle size of about 100-125µ. They perform their function without injuring the skin, as is the case with other abrasive materials with spherical particles. With the use of polymer beads, both the cleaning process is more pleasant and the skin does not remain sharp after use.

To thicken the product for a better grip, Zeodent® 163 silica is added to the composition, which promotes gel formation, softens water, absorbs odors and activates the dirt removal process. It is a highly hydrophilic powder product derived from quartz sand, with a developed silicon crystalline structure and mobile cations. This silica product is harmless and is also widely used in other hygiene products such as creams, toothpastes.

The agent additionally contains citric acid for adjusting the pH of the composition so as to be as close as possible to the natural pH of the skin, that is, in the range of 5.5 to 7.5. Citric acid also acts as a water softener and a natural preservative.

An example of a skin, especially hand cleanser composition according to the invention is shown in the following table, which gives the percentages by weight of the components for the best option, as well as the acceptable limits for maximum product cleanliness without aggressive skin action it is necessary to add extra water.

Component The best option Allowed borders Sodium laureth sulphate 5.6 4.5-6.5 Cocamide DEA 20.0 18.0-22.0 Orange terpenes 10.0 8.0 - 12.0 Deodorised white spirit 10.0 8.0 - 12.0 Silica Zeodent® 163 1.5 1.0-2.5 Oxidised polyethylene microspheres 3.0 2.0-5.0 Citric acid 0.3-0.4 0.3-0.4 Tartrazine 0.002 0.002 Demineralized water up to 100 to 100.0

Hand cleaner preparation is carried out without heating in a reactor with a mixer with demineralized water, compressed air and sewerage lines. First, a portion of demineralized water is pumped into the reactor, which is first mixed with sodium laureth sulfate and then with a portion of citric acid in food, calculated to maintain the pH of the finished product in the range of 5.5 to 7.5. It is not advisable to put all the citric acid in the recipe at once, as overdose will leave the mass too liquid even after the addition of cocamide DEA and the pH of the finished product will not be within the required range. Next, the separately dissolved colorant tartrazine C.1.19140 is added to the mass and stirred until all the loaded components are completely dissolved. Oxidized polyethylene beads are then loaded into the reactor through a manhole and stirred until evenly distributed in the mass. Next, load the thickener Zeodenf® 163 and continue mixing until homogeneous. The vacuum reactor is then aspirated under vacuum with a predetermined amount of deodorized white spirit, stirred, sucked with orange terpene and stirred again. As a last resort, DEA is added and mixed into the mass. After its addition, the mass thickens. Stir the mass continuously until it becomes homogeneous and thick. After checking the pH of the mass sample, add the remaining amount of citric acid if the pH is outside the specified limits and / or reserve the amount of water left over and mix. The mass must not be homogenized to avoid disintegration of the polyethylene beads.

The resulting hand cleanser is light yellow in color with a slight characteristic citrus scent and has a pH of between 5.5 and 7.5. It is non-toxic, non-flammable and non-explosive.

Using a hand cleaner, rub your hands with a small amount of paste, rub until the dirt is removed, and then rinse with water. If necessary, repeat the procedure.

The proposed hand cleanser has been approved by the competent authorities for 30 volunteers, washing their hands several times each day during the month. The product was found to have a pleasant, mild citrus scent, that the paste easily applied to hands, foamed well and washed well in hard and cold water, and rinsed easily with water. It was also confirmed that the cleanser is skin-friendly and does not harm the presence of microspheres. Allergic manifestations of the skin were not observed in Aprobants and, even after frequent washing, were not dehydrated.

Claims (4)

1. A skin cleanser, especially for hands, containing water, coconut oil fatty acid diethanolamide (cocamide DEA), citrus fruit products, surfactants, thickeners, colorant tartrazine and polymer microspheres, characterized in that the citrus fruit product is terpene and that it additionally contains an organic solvent in an amount such that the terpenes are 1: 1, that the surfactant is sodium laurethyl ether sulfate (sodium laureth sulfate), that the thickener is silica, and that it additionally contains citric acid to adjust the pH of the composition. 5.5 to 7.5, wherein the content of the components in the composition is as follows, by weight: sodium laureth sulphate 4.5-6.5 cocamide DEA 18.0-22.0 citrus terpenes 8.0-12.0 organic solvent 8.0-12.0 silica 1.0-2.5 polymer microspheres 2.0 -5.0 Citric acid 0.3-0.4 Tartrazine 0.002 Demineralized water to 100.0. 2. An agent for cleaning the skin, especially the hands, according to claim 1, characterized in that the organic solvent is deodorised white spirit. 3. A cleansing agent for the skin, particularly the hands, according to claim 1, characterized in that the citrus terpenes are derived from orange oil and that their main ingredient is limonene. 4. An agent for cleaning the skin, especially the hands, according to claim 1, characterized in that the polymer microspheres are oxidized polyethylene microspheres having a size of about 100-125 μ.