JPH07223935A - Production of water-soluble bio-cream and bio-lotion prepared by treating eggshell and chitosan with lactic acid - Google Patents

Abstract

PURPOSE:To obtain a water-soluble bio-cream and bio-lotion by subjecting eggshell and a chitosan prepared from crab shell as natural organism resources, as raw materials, to a prescribed treatment. CONSTITUTION:Eggshell and a chitosan are treated with lactic acid to give a water-soluble bio-cream. A cream of eggshell raw material is diluted with approximately five times as much as purified water or ethanol and the prepared solution is mixed with a stock solution of a chitosan to give a bio-lotion. The eggshell used in this production is obtained by pulverizing eggshell containing shell membrane into a powdery state. The components of the eggshell powder are calcium carbonate constituting shell, a protein membrane stuck to the inside of the shell and fibrin penetrated in a root hair state into the shell. The chitosan is obtained by removing ash from crab shell and deproteinizing to give a chitosan and deacetylating the chitin. The cream and the lotion are bio-products consisting only of natural organism resources without requiring further addition of a humectant and a skin activating component.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a water-soluble bio-cream and bio-lotion, which uses chitosan obtained from egg shell and crab shell, which are natural biological resources, as a raw material. .

[0002]

2. Description of the Related Art Conventionally, cosmetic creams and lotions are made by using oily stearic acid, butyl stearate, stearyl alcohol as a main component, and adding a moisturizing agent, an emulsifying agent, and also a fragrance and a preservative. Their efficacy centers on oil supply to the skin.

Further, in order to produce high-quality creams and lotions, it is necessary to appropriately add various amino acids, collagen, etc., which promote the activation of bare skin, to these oily main components.

In recent years, chitosan has been commercialized as an additive to creams and lotions due to its antibacterial properties and moisturizing effects. However, these are not the main ingredients of creams, but as preservatives and moisturizing additives. The lotion is mainly made of alkaline chitin.

Lotions mainly composed of alkaline chitin, hair styling agents and the like are water-soluble, but they are used because of their antibacterial properties, moisturizing effects and antistatic effects.

[0006]

However, conventional conventional creams and lotions are oil-based, and therefore have a greasy, slimy feel on the skin, resulting in poor dryness and poor usability. It is left.

Further, since the neutral skin oil component itself cannot be expected to have a skin activating effect, it is necessary to add another active component separately, which complicates the manufacturing process and therefore increases the economical cost.

[0008] Lotions and hair styling agents using alkaline chitin are certainly water-soluble, but lack amino acid and collagen and thus lack the skin-activating effect.

[0009]

The water-soluble bio-cream and bio-lotion according to the present invention for achieving the above-mentioned object are characterized by using natural biological resources such as egg shell and chitosan as raw materials.

The egg shell and chitosan used as raw materials are
All of them are industrial wastes, but by utilizing these properties synergistically, they are rich in water-soluble lactate-based bare skin active ingredients that have never been seen before, and dry dry when used. The purpose of the present invention is to provide excellent bio-creams and bio-lotions.

In the present invention, the egg shell means
It is a finely pulverized powder of the eggshell including the eggshell membrane. These components are calcium carbonate forming the shell and the protein membrane attached to the inside, and they penetrate into the shell like root hairs. Refers to fibroblasts, and chitosan is obtained by deacetylating chitin obtained by decalcifying and deproteinizing crab shells, for example, deacetylation degree 85%, molecular weight 8
It is one that dissolves in acids such as lactic acid at around 0,000.

In the bio-cream and lotion of the present invention, calcium carbonate, which is the main component of egg shell, reacts with lactic acid added in advance to form cream-like calcium lactate at room temperature, and at the same time, the fibroblast portion is decomposed and various The protein film that attaches amino acids and egg shells is made finer according to the particle size of the raw egg shell, and these generally emulsify and dissolve at a particle size of 30 μm or less, and act as active ingredients for bare skin. .

On the other hand, similarly, a solution obtained by treating chitosan with lactic acid is water-soluble, and is added to and mixed with the calcium lactate product of the egg shell at a free concentration or ratio to obtain a uniform emulsified cream or liquid. Lotions can be prepared.

Further, these mixtures are mainly composed of water-soluble calcium lactate having a melting point near room temperature of 27 ° C.
Because it is rich in various amino acids that are active ingredients on the skin, and is made of chitosan that has antibacterial and moisturizing effects,
It becomes a completely water-soluble bio-cream or bio-lotion.

That is, the bio-cream and bio-lotion of the present invention can be produced only by subjecting the egg shell and chitosan to lactic acid treatment, and a separate moisturizer or skin-active ingredient is purposely added like a conventional cream mainly composed of an oily component. It is a bio product that is made up of only natural biological resources, since it does not require the addition of a preservative or a preservative that adversely affects the bare skin.

The egg shell raw material cream which is the main component of the bio-cream and bio-lotion of the present invention,
Purified water 1 in 10 g of egg shell powder with a particle size of 30 μm or less
It is a creamy one obtained by adding 00 g and further adding 18 g of lactic acid and stirring well until bubbles are not generated, and uniformly obtained.

The undiluted chitosan solution is a 1.0% lactic acid solution containing 1.0% concentration of chitosan and is a liquid at room temperature.

[0018]

[Effect] Cream and lotion obtained by mixing the egg shell raw material cream or the one diluted with 5 times the amount of purified water or an appropriate amount of the chitosan stock solution in various proportions, spread, slime and after application. The feeling of use including the dry state and the antibacterial and moisturizing properties were investigated and evaluated.

Eggshell raw material cream and chitosan acid stock solution were respectively (A) 30/10, (B) 25/15,
(C) 20/20, (D) 15/25, (E) 10/3
The cream prepared at a ratio of 0 g is solid at room temperature (A), creamy at (B), (C) and (D),
In the case of (E), it becomes a liquid state, and after all, the products that have excellent spreadability and a smooth feeling after application are (B), (C),
The ratio was (D).

However, the creams prepared in the ratios of (B), (C) and (D) all tend to have a slight white color of calcium lactate remaining on the skin after application. This problem was solved by preparing a three-component type bio-cream containing propylene glycol as an agent.

Unlike the above-mentioned two-component system, the three-component system bio-cream does not retain the pale white color of calcium lactate after coating and drying.

In the three-component system, an egg shell raw material cream,
Chitosan stock solution and propylene glycol (F)
15.0 / 15.0 / 5.0g, (G) 15.0 / 1
7.5 / 7.5g, (H) 15.0 / 20.0 / 5.0
The product prepared in the vicinity of the ratio was excellent in spreadability and a smooth feel after application.

Regarding the moisturizing effect of the chitosan stock solution and propylene glycol as a moisturizing agent, the results of a two-component prepared cream at room temperature under a saturated aqueous solution atmosphere of various inorganic salts, that is, at a so-called predetermined relative pressure, were examined. , Also extremely less 53m
In the atmosphere range of mHg, the weight reduction tendency was almost the same, but the weight reduction rate as an absolute amount was 3 to 5%, and the chitosan stock solution was larger than the propylene glycol.

From these results, it was found that the chitosan stock solution was more susceptible to the surrounding steam atmosphere than propylene glycol, and in order to increase the feeling of use and stability of the prepared cream, addition of an appropriate amount of propylene glycol was performed. Found to need.

The bio lotion was prepared by diluting the egg shell raw material cream with 5 times the amount of purified water and adding the chitosan stock solution to the egg shell lotion stock solution (W) 10 /.
20, (X) 15/15, (Y) 20/10, (Z) 2
Prepared at a ratio of 5 / 5g.

In the bio lotion of the present invention, (W))
In the order of (X), (Y), and (Z), the larger the ratio of the chitosan stock solution, the stronger the slimy feeling after application, but the one giving a soft feeling to the bare skin is around (X). It was a ratio of bio lotion.

By adding an appropriate amount of ethanol to the bio lotion, the refreshing feeling during use can be enhanced.

Actually, using the bio-cream (G) and the bio-lotion (X) of the present invention, a human patch test was conducted on 10 women each in their 20s to 50s and a total of 40 women.

The test site is the instep of the right foot, and 1 g of bio-cream or bio lotion is taken daily after bathing and before going to bed.
Was applied to a range of 10 cm ² , and after 1 week, the results were compared with the left instep at the same site for gloss, smoothness, and bulkiness, and the results were examined using a questionnaire.

In the case of bio cream (G), 37 out of 40 people who answered that the right foot used had a smoothness and gloss increased compared to the left foot that was not used, and the effect was confirmed. Was obtained.

In the case of bio lotion (X), 4
Out of 39, the effect was clear.

In order to evaluate the antibacterial properties of the biocream, 20 g of each of the raw creams prepared by subjecting the egg shell and the reagent calcium carbonate to lactic acid treatment and the biocream (G) of the present invention were placed in a wide-mouthed bottle.
It was opened for 0 minutes and the number of days of mold development due to falling bacteria was observed at 20 ° C.

As a result, mold production was observed on the 11th day in the raw material cream obtained by treating the egg shell with lactic acid, but no mold production was observed for the other creams for 120 days or longer.

[0034]

【Example】

(1) Production Example of Egg Shell Raw Material Cream To 10 g of an egg shell finely pulverized to 30 μm or less was added 100 g of purified water, and 18 g of lactic acid was added to this to stir until foaming disappeared to form a uniform cream at room temperature. So-called egg shell raw material cream production method.

(2) Production Example of Chitosan Stock Solution 10 g of lactic acid and 90 g of purified water were added to 100 g of 1.0% lactic acid aqueous solution, and 1.0 g of chitosan having a deacetylation degree of 85% and a molecular weight of about 850,000 was put into a uniform solution. A so-called chitosan stock solution produced by stirring and dissolving.

(3) Production Example of Bio-Cream 1.0 g of chitosan having a deacetylation degree of 85% and a molecular weight of about 850,000 was uniformly stirred into the egg shell raw material cream obtained by the production method of (1) and (2), Obtained by melting,
So-called chitosan stock solution manufacturing method.

(3) Production Example of Bio-Cream A method for producing a bio-cream which is creamy at room temperature and which is obtained by mixing the egg shell raw material cream obtained by the production method of (1) and (2) and a chitosan stock solution The ratio is as follows.

(A) Egg shell raw material cream 15.0 g Chitosan stock solution 15.0 to 20.0 g Propylene glycol 5.0 to 7.5 g Neutralizer (potassium hydroxide) 0.1 to 0.2 g Emulsifier (dodecyl sulfate) Sodium) 0.05g

(B) Egg shell raw material cream 20.0 g Chitosan stock solution 10.0 to 15.0 g Propylene glycol 5.0 to 10.0 g Neutralizer (potassium hydroxide) 0.1 to 0.2 g Emulsifier (dodecyl sulfate) Sodium) 0.05g

(C) A method for producing a bio-cream which is creamy at room temperature and which is obtained by mixing bio-cream (A) or (B) with an ordinary oily cream, and the mixing ratio is as follows. (A) or (B) Bio-cream 100g Ordinary oil-based cream 10-100g

Typical components of the oily cream are (D) and (E), each of which is prepared by heating to 75 ° C. or higher, mixing, and cooling to room temperature. (D) Stearic acid 8 g Butyl stearate 8 g Stearyl alcohol 6 g Glycerin monostearate 2 g Preservative (P-paraben) 0.15 g Glycerin monostearate 2 g Preservative (P-paraben) 0.15 g

(E) Propylene glycol 10 g Purified water 80 g Potassium hydroxide 0.2 g Perfume proper amount

(4) Production Example of Bio Lotion An egg shell lotion undiluted solution prepared by diluting the egg shell raw material cream of the production method of (1) with purified water to about 5 times volume,
Mixing ratio of chitosan undiluted solution is a liquid lotion at room temperature and a method of biolotion added with appropriate amount of ethanol.

Egg shell raw material cream diluted to 5 times 10 to 25 g Chitosan stock solution 5 to 20 g Neutralizer (potassium hydroxide) 0.05 g

Egg shell raw material cream diluted to 5 times 10 to 25 g Chitosan stock solution 5 to 20 g Neutralizer (potassium hydroxide) 0.05 g Ethanol 5 to 25 g

[0046]

Since the present invention is constructed as described above, it has the following effects.

By treating the egg shell with lactic acid,
A creamy product containing rich amino acids and collagen, which are active ingredients for bare skin, is obtained.

By treating lactic acid with chitosan, a water-soluble and excellent antibacterial solution is obtained.

The cream or lotion containing the above product has the characteristics of an egg shell and chitosan, and is excellent in a dry feeling.

Claims (2)

[Claims] 1. A method for producing a water-soluble biocream obtained by treating an egg shell and chitosan with lactic acid. 2. A method for producing a bio lotion, which comprises adding the chitosan according to claim 1 to a solution obtained by diluting an egg shell with a predetermined multiple of water or ethanol according to claim 1.