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Cleaning effects for the hair and skin of carbonate water.

Keywords: Cleaning Effects, Hair, Skin, Carbonate Water, Air Bubble

Introduction and Objectives

Use of carbonate water for hair washing is recently starting to spread in the hairdressing industry in Japan. It is said that carbonate water started been used when a patient found that it feels more refreshing to wash with carbonated water during high concentrate artificial bicarbonate warm water shower. It has been expected that by using carbonate water, there will be effects of the acid and of the vasodilatation, however no scientific evidence has been found. In this paper, experimental results on hair and skin washing using high concentration artificial bicarbonate warm water is reported. Method & Results

1. Removal action of the protein with the hair shower

We divided hair into right and left in the middle. And we performed a shower with tap water on one side and carbonated water on the other side with 38 degrees centigrade for two minutes. As a result, it was confirmed that much protein was included in carbonate warm water by a ninhydrin reaction.

2. Adsorption phenomenon of air bubbles seen at a moment of parting from skin The process of bubble growth and parting from skin surface was observed using

high speed camera. It was observed that the bubbles stuck to skin surface when parting.

3. Removal action of the lipid with air bubbles

Furthermore, the removal action of lipid by absorption of lipid into air bubbles and floating was observed using the high speed camera.

Discussion

From these results, the lipids of the skin are taken in the air bubbles, and it is thought that it is eliminated with the surfactant effect of air bubbles. Furthermore, skin is cleaned by adsorbing lipids or dirt when air bubbles float. When there is stimulation such as sebum or the dirt of the skin, the carbon dioxide which dissolved in water forms air bubbles, but, at this time, this sebum and dirt are taken into the air bubbles and--removed. Sebum, dirt and the protein which stuck to skin are released in warm water with air bubbles of the carbon dioxide by these mecha nisms. Therefore it is thought that the difference of removal of protein when washed with the carbon dioxide warm water instead of the tap water is seen as shown from the ninhydrin reaction.

Conclusions

The effect of bicarbonate bubbles on human body is assessed using the following methods: taking into the bubble and eliminate action of lipid, observation of separation of bubble from skin surface, and comparison of protein with tap water using ninhydrin reaction.

As a result, it has been shown that the cleaning effect of artificial bicarbonate warm water is achieved by the mechanism of the taking lipid into the bubble and the elimination, adsorption force between skin surface and bubble and buoyancy effect of bubbles resulting from growth and merging of bubbles at skin surface.

Maeda M(1), Hara M(1), Sakurai Y Kinoshita O(1), Ohmura M(1), Yamamoto J(1), Kogure E(1), Shioda A(1)

(1)Department of rehabilitation. International university of health & welfare graduate school. Japan mm@iuhw.ac.jp

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Title Annotation:texto en ingles
Author:Maeda, M.; Hara, M.; Sakurai, Y.; Kinoshita, O.; Ohmura, M.; Yamamoto, J.; Kogure, E.; Shioda, A.
Publication:Anales de Hidrologia Medica
Date:Dec 1, 2012
Words:518
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