JPS61212508A - Preservative for cosmetic - Google Patents

Abstract

PURPOSE:Coral sand obtained from the living skeleton of reef-producing coral and YOKASEKI is used as a cosmetic preservative harmless to human body. CONSTITUTION:Coral sand composed mainly of calcium carbonate and containing Mg, Sr, Na, K, P, etc., and small amount of Fe, Cu, Zn, Mn, Co, Cr, etc., is used as a preservative of cosmetic. Coral sand is harmless to human body, and gives a cosmetic having gas-permeability as well as preservative property by the porous structure. In the case of using the coral sand as a preservative, the natural coral sand is washed to remove salt component, sterilized and dried at 80-150 deg.C, and crushed to 150-500mesh fine powder at normal temperature. The crushing may be carried out after freeze-drying at -180--200 deg.C in nitrogen gas atmosphere, or by kneading with seawater, etc., to form a paste.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a cosmetic preservative using coral sand.

(Prior art and its problems) With the diversification of products, consumer demands have also become more diverse and segmented, and a wide variety of cosmetics are now being manufactured.

For this reason, the types and amounts of cosmetic additives used are increasing year by year in order to improve quality, mass produce, and ensure shelf life.

The basic raw materials for cosmetics are fats and oils, mineral oils, waxes, alcohols, surfactants, pigments, tar pigments, fragrances, antioxidants, preservatives, and anti-fouling agents.On the other hand, the minerals in cosmetics Cosmetic pollution, which causes skin problems because oils, surfactants, tar pigments, fragrances, antioxidants, preservatives, and antifungal agents penetrate into the skin, has become a major social problem, and consumers are becoming emotionally The tendency to avoid cosmetic additives is becoming stronger, and cosmetics manufacturers are being forced to respond accordingly.However, cosmetic additives are essential for improving the product quality, hygiene, and properties of cosmetics themselves. It is something. In particular, preservatives are important because they prevent cosmetics from spoiling due to microorganisms.

However, commonly used preservatives are relatively toxic, and it is not desirable to ingest various preservatives from various cosmetics, so standards for the use of each preservative are determined by the Pharmaceutical Affairs Law. ing. Ethyl paraoxybenzoates and the like have been conventionally used as preservatives.

However, although these preservatives improve the shelf life of cosmetics, they are highly toxic and may affect the human body. For this reason, cosmetics that do not contain preservatives are becoming popular these days, and there is a trend toward returning cosmetic manufacturing methods and materials to natural ones.

Therefore, an object of the present invention is to provide a natural cosmetic preservative that does not cause any harm to the human body, unlike the conventional preservatives.

(Means for Solving the Problems) In order to achieve the above object, the gist of the present invention is to use coral sand as a preservative for cosmetics.

That is, as a result of various research and consideration, the inventor has discovered that coral sand obtained from living skeletons of reef-building corals and sheep fossil groups has an antibacterial effect and can be used as a preservative in place of conventional chemical compound preservatives. It turns out that it can be done.

In order to prove this effect, we asked Chiba Prefectural College of Health Sciences to conduct a test, and the results were as follows.

First, when Coral Sand, which is the object of the present invention, was partially sprinkled on a plate containing E. coli, the effect of inhibiting the growth of E. coli was observed only in the area where Coral Sand was sprinkled.

Next, when coral sand was sprinkled over the entire surface, the effect of inhibiting E. coli growth was clearly visible over the entire surface.

As a result of these experiments, it was found that coral sand, which had previously been unthinkable as a preservative, had a clear effect on inhibiting the growth of E. coli, and it was found that it could be used as a natural preservative. .

Although it is possible to further enhance the preservative effect by attaching silver to coral sand, the coral sand of the present invention can fully exhibit its effect as a preservative even without attaching silver.

Coral sand as referred to in the present invention is coral sand obtained from living skeletons of reef-building corals and sheep fossil groups, and as shown in Table I, calcium carbonate (about 95% CaCO) is the main component and is an important biological component. It contains essential vitamin elements such as magnesium, strontium, sodium, potassium, phosphorus, and chlorine, as well as trace amounts of iron, copper, zinc, manganese, cobalt, and chromium.

These elements are accumulated and weathered by the life activities of reef-building corals, which are coelenterates.

Therefore, unlike other cosmetic preservatives obtained by chemical processing, it has an ecological chemical structure and is safe for the human body. The fact that it does not cause any harm to the human body is as shown in the attached test and inspection report from the Tokyo Food Sanitation Association.

In addition, coral sand has countless pores (Micro Po
re) has developed, the surface is rich in four convex shapes, and is extremely porous, so when used as a preservative, it has high breathability and exhibits the ability to absorb and release sebum and sweat.

The method for producing the preservative of the present invention will be explained below.

First, naturally obtained coral sand is washed to remove salt, then heat sterilized and dried at 80 to 150 degrees Celsius, and then heated at room temperature for 15 minutes.
It is ground into 0 to 500 meshes, but the grinding can also be carried out by freeze-drying at -180 to -200°C in a nitrogen atmosphere.
It is also possible to mix it with seawater or spring water.

The finely powdered coral sand thus obtained is extremely porous and highly soluble, making it ideal as a preservative for cosmetics.

(Effects of the Invention) As described above, the preservative for the cosmetics of the present invention is natural coral sand, and there is no risk of harm to the human body.
Moreover, since coral sand has pores, by using it as a preservative in cosmetics, it is possible to produce cosmetics that are not only effective as a preservative but also have good air permeability.

Claims (1)

[Claims] Preservative for cosmetics characterized by using coral sand