Gas and liquid contact apparatus – With external supply or removal of heat – Heat producer
Patent
1990-09-10
1992-10-27
Miles, Tim
Gas and liquid contact apparatus
With external supply or removal of heat
Heat producer
261 30, 261 38, 261 721, 261DIG48, 132272, B01F 304
Patent
active
051587165
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to an improved atomizer for hairdressing in which micro-size liquid particles are generated by utilizing an electricity-mechanical power conversion element as a source of ultrasonic waves.
BACKGROUND OF THE INVENTION
To protect hair from damage such as peeling of the cuticle and splitting and tearing of the hair, and also to favorably keep the natural gloss of the hair itself, it is generally known that the moisture contained in hair (hereinafter referred to as "hair moisture content") should be maintained at an optimum value, i.e., approximately 10% in relation to the weight of hair.
To perform hairdressing without losing the hair moisture content, drying or dressing of the hair is carried out by means of various hot air dryers (represented by a hand dryer) after shampoo or water spraying to moisten the hair. Though it is effective to apply moisture to the cuticle of the hair to make hairdressing easier, most of the moisture is collected on the cuticle of the hair by surface tension of the water particles generated on the cuticle of the hair. As a result, the moisture applied to the hair steams away during drying of the hair. Namely, since the volume of the moisture to permeate into the hair only by moistening the hair is very small, it is hard to protect the hair and to maintain the gloss of the hair because the hair moisture content to be lost by drying cannot be sufficiently supplemented.
To solve this problem, various dryers which are provided with steam atomizers for atomizing water steam particles (hereinafter referred to as "steam") to the hair have been proposed. For example, a dryer in which a steam atomizer is installed in the controlling portion is disclosed in Japan Published Examined Utility Model Application No. 52-25335. A dryer in which the steam atomizer and the controlling portion are separately formed is disclosed in Japan Published Examined Utility Model Application No. 54-43907. Moreover, a dryer which is provided with a pot-type hard hood is disclosed in Published Examined Utility Model Application No. 53-37806.
In the above-mentioned prior references, since hot steam is atomized to the cuticle of the hair, hairdressing to straighten out kinky hair and curl hair during applying a permanent can be facilitated. Moreover, since the steam to be sprayed includes more minute water particles in comparison with spraying water, the volume of the moisture content to be permeated into the hair is increased. As a result, the moisture content (the ideal volume of the moisture contained in the hair is approximately 10% in relation to the weight of the hair) to be lost due to hot air drying can be effectively supplemented to protect the hair from damage and to keep the gloss of the hair.
On the other hand, the steam particles having an average diameter of approximately 30 to 50 .mu.m are a few .mu.m larger than those considered to be ideal to permeate into the hair. Therefore, the permeation of the moisture into the hair is insufficient even if steam is sprayed. Namely, the aforementioned ideal value of the hair moisture has not been attained yet.
Moreover, the temperature of the spraying steam is so high that there is a possibility of being scalded due to spraying of hot steam onto the face, dropping of hot water drops collected at the atomizer end portion, and long time spraying of steam. Especially, in case of a dryer in which the steam atomizer is installed in its controlling portion, it is apprehended that hot water may flow out. On the other hand, in a dryer which is provided with a pot type hard hood, a steam blow-out hole is installed in the hard hood in order to prevent the user from getting scalded. This type, however, is still insufficient to prevent the occurrence of scald. If the head of the user touched at the hood, there is still a possibility of getting scalded.
Furthermore, the prior art dryers include another problem. If the temperature of the steam is decreased, the steam particles become water drops. It is, therefore, necessary t
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Miles Tim
Sanko Electric Machine Manufacturer Co. Ltd.
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