JPH04187615A - Production of scrubbing cream using egg shell - Google Patents

Abstract

PURPOSE:To obtain a scrubbing cream useful for cleaning skin and face, containing eggshell made into a creamy state. CONSTITUTION:Eggshell is made into fine powder having about 500-50mum particle size by a ball mill and the fine powder is added to a solution of lactic acid. The solution is properly mixed with a humectant, an oil, a neutralizing agent, a surfactant, a perfume and an antiseptic to prepare a scrubbing cream. 70-90 pts.wt. of the scrubbing cream is mixed with 30-10 pts.wt. varnishing cream, prepared by common prescription, while stirring to give the objective scrubbing cream. Eggshell consisting essentially of amino acids is dissolved in a solution of lactic acid, but fine particles of stuck collagen film are insoluble and left in the creamy formed product. These particles are useful for activating skin by frictional action of skin. Eggshell is a waste and this production of scrubbing cream is a using method taking advantage of characteristics of eggshell.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for producing a scrub cream using eggshell, such as washing the bare skin and face using eggshell.

``Conventional technology'' Traditionally, eggshells have been used in the form of a fine powder to be used as a raw material for directly reinforcing the lucium, mainly as food additives or as creams containing collagen by extracting and dissolving the attached collagen membrane, or as organic components in the shells. It is recovered in the form of amino acids using methods such as electrodialysis and used as amino acid-containing creams.

``Problem to be solved by the invention'' When eggshell is used as a substitute for lucium carbonate, and when it is pulverized into a fine powder and used directly as a lucium strengthening agent, the properties of the attached collagen membrane and the amino acids contained cannot be fully utilized. . Furthermore, in order to increase added value, various chemical methods are required to separate and utilize these, which is economically disadvantageous.

The present invention solves the above-mentioned drawbacks and relates to the production of a scrub cream that takes advantage of the properties of all the ingredients of eggshell.

``Means for solving the problem'' Eggshells containing amino acids, which are the main components of eggshells crushed to a particle size of about 500-50 pm, can be dissolved by adding lactic acid solution, but the attached collagen membrane particles are insoluble. , remaining dispersed within the creamy product. These particles serve as so-called scrub particles to activate the bare skin by frictional action on the skin. In order to improve the feel and moisturizing properties of the product on bare skin, propylene glycol, liquid paraffin, a neutralizing agent, a surfactant, etc., which are components of commonly used creams, are added. In the resulting scrub cream, all the components of eggshells are used as waste.The method for producing scrub cream using eggshells consists of the above-mentioned production method.

``Function'' As a result of examining the basic physical properties of eggshells, it was found that countless low-molecular-weight root hairs of the collagen membrane attached to the inside invaded the calshu carbonate, which has a lime structure and has a shell thickness of approximately 450 pm. When treated with lactic acid, these are broken down into amino acids as the shell dissolves. On the other hand, even if the eggshell is crushed to about 500-50 pm, the attached collagen membrane is only physically shortened into short fibers, is insoluble in lactic acid, and remains in the form of fine particles. These particles are similar to the components of the skin, so when rubbed into them, they can be expected to have a scrubbing effect on the epidermis without damaging the bare skin. Also, unlike conventional scrub creams that use walnut grains, there is no risk of eye damage when washing your face. The dissolved amino acids are aspartic acid, proline, cystine, lysine,
Since it contains most of the 18 types of amino acids including histidine, it significantly promotes the regeneration and activation of damaged skin.

``Example'' The present invention will be described below. 6 First Step After washing the eggshell with water and drying, a fine powder with a particle size of about 500-50 μm is prepared using a ball mill or the like.

2nd step: Add an appropriate amount of lactic acid solution to the above fine eggshell powder. The standard mixing ratio is as follows6 Eggshell fine powder 10 parts Lactic acid 18 parts Pure water 100 parts Third step While stirring the solution that has become creamy after the second step, add a moisturizer such as polypylene glycol. Polyhydric alcohols, liquid paraffin, higher fatty acids, and esters as oil agents, potassium hydroxide as a neutralizing agent, polyoxyethylene (20) sorbitan monostearate as a surfactant, and other fragrances and preservatives are blended. The standard mixing ratio is as follows.

Propylene glycol 15 parts Liquid paraffin 15 parts Potassium hydroxide 0.2 parts Polyoxyethylene (20) 4 parts Sorbitan monostearate 4th step 4th step After passing through the 3rd step, add Vanishing cream prepared according to the usual recipe. By adding an appropriate amount, it is possible to enhance the tactile properties such as smoothness on the bare skin when using the present scrub cream, and to ensure appropriate fluidity. The blending ratio of the Vanishing Cream to be prepared is as follows.

Stearic acid 8 parts Stearyl alcohol 6 parts Butyl stearate 8 parts Glycerin monostearate 2 parts P-paraben 0.5 part BHT 013 copies To the above oil layer solution, Propylene glycol 1o part Potassium hydroxide 0.2 part Pure water 90 parts The above water layer was heated to 70-90"C, respectively. After heating, stir well to emulsify. Then, make it into a uniform ream shape.

5th Step: Add the previously prepared vanishing cream to the product from the 3rd step, and stir well to make a homogeneous state.

The standard ratios are as follows.

Scrub cream of the present invention: 70-90 parts Vanishing cream: 30-10 parts "Effects of the invention" As poultry farms become more efficient, eggs are produced in large quantities.

On the other hand, after consumption, eggshells are discarded as food products in confectionery and mayonnaise factories. Their usage is limited to a small number of large food and cosmetics companies, and most of them are incinerated or disposed of in landfills and are not recycled. Moreover, it is thought that these usage methods do not fully utilize the characteristics of eggshell. The present invention was invented after careful consideration of the basic physical properties of eggshells, and in order to utilize all of the contained components extremely effectively. The particle size of the collagen fine particles dispersed in the scrub cream while remaining insoluble can be controlled by changing the grinding conditions of the eggshell.

Claims (1)

[Claims] 1. A method for producing a scrub cream using eggshells made by reacting fine eggshell powder with an appropriate amount of lactic acid solution and making it into a cream.