JP2007312807A - Hair iron - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair iron which has no possibility of staining the periphery of the hair iron with dust and produces anions in an amount sufficient for caring the hair without generating ozone harmful to a human body. <P>SOLUTION: Two clamping members 2 in which a heat plate 1 with a built-in heater 4 is attached to the distal end are connected by a hinge 3 so that the heat plates 1 face each other, and tourmaline fine powder (a) forms a coating layer on the surface of at least one of the heat plates 1. The heat plates 1 are heated to the maximum of about 180°C by the heater 4, and the anions in the amount sufficient for caring the hair are generated from the tourmaline fine powder (a) on the surfaces of the heat plates 1 when heated. Since the generation amount of the anions is not a high concentration as in a conventional high voltage discharge method, the possibility of attracting the dust to the periphery of the hair iron and staining it is low. Also, since the ozone is not generated, there is no risk of harming health. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hair iron that heats and curls or straightens hair.

A hair iron of this type will be described with reference to FIG. 1 showing an embodiment of the present invention. When two gripping members 2 having a hot plate 1 at the tip thereof are hinged 3 so that the hot plate 1 faces each other. In general, the holding members 2 and 2 are connected to each other through the hinge 3 and can be opened and closed up to an angle that does not hinder hair (see Patent Document 1 FIG. 1).
JP 2002-291517 A

  In this hair iron A, with the hot plate 1 heated by the built-in heater 4, both the gripping members 2 and 2 are closed with the hair interposed therebetween, the hot plate 1 is pressed against the hair, and the heat of the hot plate 1 is Straighten the pinched hair to the desired hairstyle. At this time, the shape of the hot plate 1 is prepared according to each hair style. For example, when straightening wave-shaped hair, a hot plate having a flat surface is used, and conversely, a straight shape is used. When waves are applied to the hair, a hot plate having an arc-shaped cross section is used.

  The heater built-in hot plate 1 is usually made of a metal plate such as aluminum that is easy to process or inexpensive stainless steel, and the surface of the hot plate is coated with fluororesin, ceramic, or the like. This coating improves the sliding of the hot plate 1 against the hair.

  Further, when the metal plate is exposed on the surface of the hot plate 1 when the hot plate 1 is pressed against the hair, the heat of the heater is easily transmitted to the hair because the metal plate has a high thermal conductivity. However, as described above, when the coating layer is formed on the surface of the hot plate 1, the heat conductivity of the coating layer is usually lower than the heat conductivity of the metal plate, so that the heat of the heater is transmitted to the hair. As compared with the case where the metal plate is exposed and the metal plate is exposed, the hair temperature is kept low, and the direct damage to the hair due to heat is reduced.

  As described above, the coating layer on the surface of the hot plate 1 reduces damage caused by slippage with the hair and heat of the hair, but the heat of the hot plate 1 (heater 4) loses moisture of the hair and damage caused by drying. Occurs. In order to prevent this drying, it is sufficient to give moisture to the hair. In addition, a large amount of moisture adheres to the hot plate 1 and has an adverse effect such as generation of rust.

For this reason, attention is paid to the fact that negative ions are in a state where several water molecules in the atmosphere clustered on oxygen ions are attached and are oxygen ion hydrates, and negative ions that are hydrates are generated. A hair iron having a function to do this has been developed (see FIG. 1 of Patent Document 2).
JP 2004-208770 A

  This hair iron discharges a large amount of negative ions from its ion discharge port by applying a high voltage between the electrodes provided in the appliance and discharging it. Thereby, in the vicinity of the hair iron, water molecules composed of negative ions are abundantly floated, and this hydrate (negative ions) moisturizes the hair and prevents damage caused by drying of the hair.

  However, as described above, this conventional hair iron generates negative ions by high-pressure discharge, and negative ions are generated at a high concentration (10,000 or more / cc). At this time, the negative ions have an action of electrically attracting positively charged dust floating in the air, so that the negative ions are present in a high concentration (in a large amount). Is attracted a lot. For this reason, the conventional hair iron has a problem that not only the hair iron but also the hair is stained with dust during use.

Here, the number of negative ions required to impart moderate moisture to the hair is sufficient even at 10,000 or less / cc, and there is no need to generate negative ions at an extremely high density as in the high-pressure discharge type.
On the other hand, in the generation of negative ions by high-pressure discharge, the discharge voltage applied between the electrodes for high-pressure discharge and the concentration of generated negative ions are almost proportional, and the concentration of negative ions can be reduced by lowering the discharge voltage. Can do.

  For this reason, in the conventional high-voltage discharge hair iron, it is conceivable to reduce the discharge voltage between the electrodes for high-voltage discharge, but in order to sustain the discharge stably, the discharge voltage is preferably high, the discharge voltage If it is reduced, stable discharge becomes difficult, and negative ions may not be generated smoothly and sufficiently.

  Furthermore, not only negative ions but ozone is inevitably generated during the high-pressure discharge. This ozone is said to be harmful to the human body when its concentration exceeds a certain reference value (about 0.1 ppm or more), and when it is used daily, very close to the human body like a hair iron, For example, it is not preferable that the concentration is below the reference value. Moreover, even if this discharge voltage is lowered, the generation of ozone cannot be avoided.

  In view of such a current situation, the present invention has a low risk of soiling around the hair iron with dust and generates a sufficient amount of negative ions for hair care without generating ozone harmful to the human body. Let it be an issue.

In order to solve the above-mentioned problems, the present invention focuses on generating negative ions by heating ore such as tourmaline, so that the negative ions are generated not by high-pressure discharge between electrodes but by ore. It was.
Normally, ore such as tourmaline that generates negative ions by heating does not generate ozone by heating, and generates appropriate negative ions as a hair iron by appropriately selecting the amount thereof.

  According to the present invention, since ore such as tourmaline is used, the amount of negative ions generated is low compared to the method using high-pressure discharge, and there is a low possibility that the vicinity of the hair iron is stained with dust. In addition, since the generation of negative ions from this ore does not generate ozone, there is no concern of harming health due to the use of a hair iron based on the generation of ozone.

As an embodiment of the present invention, a configuration is adopted in which a coating layer of crushed ore that generates negative ions by heating is provided on the surface of the hot plate that touches the hair.
Since the hot plates are a pair, the coating layer may be one of them, but it is preferable to provide the coating layers on the pair of hot plates in view of the lubricity of the hot plate surface, the degree of negative ion generation, and the like.
The pulverized ore that generates negative ions by heating is preferably general tourmaline, but may be any as long as it generates negative ions by heating, such as garnet, amber, coral stone, and the like.

The ore is pulverized using a ball mill or the like. Usually, the smaller the particle size, the larger the surface area per unit volume, so that negative ions can be generated efficiently. When the diameter is small, the surface becomes smooth, so that the hair is not caught on the surface when the hair iron is used, and a comfortable feeling of use can be obtained.
For this reason, the pulverized particle size may be appropriately set in consideration of the lubricity of these coating layers, the degree of negative ion generation, etc., for example, 4 to 5000 nanometers, preferably 4 to 1000 nanometers. And When it exceeds 5000 nanometers, unevenness on the surface of the coating layer becomes prominent, and the feeling of use deteriorates (eg, the slipperiness deteriorates) such as the hair getting caught. On the other hand, if it is less than 4 nanometers, the cost for obtaining the particle size increases. However, less than 4 nanometers can be adopted if the cost is not considered.

  If the coating layer on the surface of the hot plate is too thin, the coating layer may peel off or the amount of negative ions generated may be insufficient due to long-term use. On the other hand, if the coating layer is too thick, the heat conduction efficiency from the hot plate is lowered. Therefore, the thickness is appropriately set in consideration of them, for example, in the range of 5 to 1000 micrometers. If it is less than 5 micrometers, there is a high possibility that sufficient generation of negative ions cannot be expected. On the other hand, if it exceeds 1000 micrometers, heat conduction deteriorates, unnecessary negative ions are generated, and the cost increases. . However, since the generation of negative ions and the thermal conductivity are affected by the particle size of the crushed ore, the thickness is not limited.

  For forming the coating layer with the crushed ore, various well-known means such as dripping and brushing can be employed. The crushed ore may be coated directly. For example, the crushed ore and paint are mixed to form a coating agent. The coating agent is coated on the surface of the hot plate that touches the hair, and the paint is applied by heat treatment. It can be formed by curing. In this case, the paint serves as a binder and an adhesive. At this time, the type of coating, the coating method, the curing conditions, etc. are not particularly limited, and a wide variety of known methods can be used as long as they do not peel off or deteriorate due to heat and hair styling when using a hair iron. be able to.

  FIG. 1 shows a hair iron A according to an embodiment. In this hair iron A, two holding members 2 each having an aluminum hot plate 1 with a built-in heater 4 attached to the tip thereof are opposed to the hot plate 1. In this way, the hinge 3 is coupled, and the opening and closing of the gripping member 2 by the hinge 3 can be freely opened and closed up to an angle (about 30 degrees) that does not hinder hair.

  The power cord 5 of the hair iron A is provided with a temperature controller (not shown), and the surface temperature of the hot plate 1 can be adjusted in a range of about 60 to 180 ° C. This temperature adjustment range can be freely changed as necessary at the design stage, and is not limited to the above range.

  As shown in FIG. 2 (a), tourmaline fine powder a is coated on the entire surface of the hot plate 1 as shown in FIG. The particle size of the fine powder a is about 4.6 nanometers, and the thickness of the coating layer is about 30 micrometers.

  The tourmaline fine powder a and a liquid ceramic paint were mixed and stirred until uniform, and then the hot plate surface was coated to a uniform thickness using a general-purpose coating apparatus. Thereafter, the coating was cured by holding at about 200 ° C. for 30 minutes.

  On the other hand, a heater 4 for heating the hot plate 1 is fixed to the back surface of the hot plate 1 with a heat-resistant adhesive, as shown in FIG. Further, an elastic body 6 is provided for locking the hot plate 1 to the holding portion of the gripping member 2 and biasing the hot plate 1 from the back surface to the surface direction. The elastic body 6 is configured such that when the hair is sandwiched between the two gripping members 2 and the gripping member 2 is closed, the two hot plates 1 slightly change in angle corresponding to the amount of the sandwiched hair. Is acceptable. Since the gap between the hair and the hot plate 1 can be eliminated by changing the angle of the hot plate 1, the hair can be heated uniformly.

In the hair iron A of this embodiment, in the state where the hot plate 1 is heated, both the holding members 2 and 2 are closed with the hair interposed therebetween, and the hot plate 1 is pressed against the hair. With the heat of, the pinched hair is corrected to a desired hair style.
At this time, the coating layer (the satin portion in FIG. 1) made of tourmaline fine powder a on the surface of the hot plate 1 is heated, so that negative ions are generated from the coating layer and moisturize the hair. At this time, the amount of generated negative ions is necessary and sufficient, and is low compared to the amount due to high-pressure discharge. Further, ozone is not generated, and health injury based on ozone generation is not caused.

  In this example, tourmaline was used as the crushed ore, but garnet, amber, and coral stones that generate negative ions by heating or the like as in tourmaline can be used as an alternative.

The perspective view of the hair iron in one Example In one embodiment, (a) is a perspective view of the front side of the hot plate, (b) is a perspective view of the back side of the hot plate.

Explanation of symbols

A hair iron a tourmaline fine powder 1 hot plate 2 gripping member 3 hinge 4 heater 5 power cord 6 elastic body

Claims (4)

  A hair iron provided with a coating layer of ground ore that generates negative ions by heating on the surface of the hot plate (1) that touches the hair.   The coating layer is provided by mixing the pulverized ore and paint to form a coating agent, coating the coating agent on the surface of the hot plate (1) that touches the hair, and curing the paint by heat treatment. The hair iron according to claim 1.   The hair iron according to claim 1 or 2, wherein the ore is tourmaline.   The hair iron according to any one of claims 1 to 3, wherein the ore has a particle size of 4 to 5000 nanometers.

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