JP2002369711A - Hair iron - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair iron which eliminates the scorching of hairs stuck on to the iron by modifying the surface of the iron body so as to make hairs glide easily thereon along with excellence in resistance to chemicals and corrosion. SOLUTION: In the hair iron 10 using an open-close type electric heater 16 having a rod 12 and a globe 14 rotatably linked almost at the center thereof, the above-mentioned purpose is achieved by applying a DLC coating 20 on the rod 12 at least on the heating side thereof. It also can be done by applying the DLC coating 20 only on the surface of the rod 12 on the side thereof contacting the globe 14. The DLC coating 20 is abbreviation for diamond like carbon, referring to an amorphous carbon film composed mainly of carbon and hydrogen with the hardness thereof closer to that of diamond.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair iron.

[0002]

2. Description of the Related Art According to Japanese Utility Model Application Laid-Open No. 58-111501, the surface of a conventional ironing iron is subjected to a baking treatment of a fluororesin in order to improve slipping and to increase chemical resistance and corrosion resistance. Had been applied. However, in the baking treatment of fluororesin, the base film is exposed due to scratches, peeling, abrasion, etc. due to the thin coating film, excessive opening and closing use, and corrosion of chemicals or moisture occurs in that part, and rust and oil scorching etc. Adhesion, poor slippage, and slow rotation result in a heat rise in the rod, which is the heater portion of the ironing iron, which results in significant damage to the hair. In order to eliminate these drawbacks, by attaching a tube made of fluorocarbon resin to the rod and glove, the sliding of the iron is improved, and the chemical resistance, corrosion resistance, and abrasion resistance to withstand excessive opening and closing use are improved. Hair irons with excellent properties have been proposed.

[0003]

SUMMARY OF THE INVENTION Hair irons include:
If the hair coming out of the scalp is entangled with the iron and heated for a long time, the hair, which is a protein, emits an unpleasant smell, and the hair burns on the iron, and it is not easy to remove it, causing burning once The portion had a problem to be solved in that new hair was easily seized. Hair irons are used to impart a curl to the hair with high heat or to extend the curl. Can be attached.
According to the proposal of Japanese Utility Model Application Laid-Open No. 58-11501, the heating temperature for imparting a bending habit to hair needs to be 140 ° C. for low temperature, 150 ° C. for ordinary use, and 160 ° C. for high temperature. On the other hand, fluorine resin is 16
At 0 ° C, if the hair is pressed strongly, it will be very soft enough to form a depression, and its properties are not different from the tube and the so-called baked fluororesin, but it can be scratched or slipped across the hair. Wear caused by friction when
The service life is extended only by the thicker resin,
The fundamental solution had not been reached.

[0004] The present invention has been made in view of the above-mentioned problems, and it is easy for hair to slide on the surface of an ironing iron, and has high chemical resistance.
An object of the present invention is to provide a hair iron that is modified to have excellent corrosion resistance and does not cause the hair to seize on the iron.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hair iron using an openable electric heater in which a rod and a glove are rotatably connected substantially at the center thereof, wherein at least the rod on the heating side is coated with DLC. This can be achieved by: Further, it can also be achieved by applying the DLC coating only to the surface of the rod in contact with the glove.
The above-mentioned DLC coating may be applied to both the rod and the glove. DLC coating is an abbreviation for diamond-like carbon, which is an amorphous carbon film mainly composed of carbon and hydrogen, and has a hardness close to that of diamond. In addition, DLC is amorphous, unlike diamond, and therefore has a high hardness, a very smooth surface, abrasion resistance, anti-adhesion resistance, a low coefficient of friction, and releasability, as shown in Table 1. Very excellent in terms of such.

[0006]

[Outside 1]

[0007]

[Function] This hair iron has at least a DLC coating with high hardness, low friction and abrasion resistance on the heating side rod. It is good and can be bent and prolonged without curling and sticking of hair to the rod.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A hair iron according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the present hair iron 10 mainly includes a pair of rods 12, a glove 14, and a fulcrum 18. Originally, hair irons generally consist of a rod 12 around a fulcrum 16.
By sandwiching the hair between the hair and the glove 14, the hair is bent and the bending habit is extended. The rod 12 and the glove 14 can be roughly classified into a part held by hand, a fulcrum 16 part, and a part for sandwiching hair. The material of the rod 12 and the globe 14 may be a stainless alloy in consideration of ease of handling, weight, corrosion resistance, and the like.

In the hair iron 10, the rod 12 is heated by the heater 16. Considering the role as described above, the friction coefficient (μ) is set to 0.1 at the heated portion of the rod 12.
A DLC coating 20 having a heat resistance of 250 ° C. or higher, which is lower than that of a fluororesin, and a hardness of Hv 3000 to 5000 and higher than that of a cemented carbide (Hv 800 to 1000) is applied. This DLC coating 2
0 may be applied only to the rod 12 on the heating side, but may be applied to the glove 14 side. However, considering the processing cost, only the heating side is sufficient.

As shown in FIG. 2A, the DLC coating 20 may be applied to the entire surface of the rod 12.
It may be applied only to the surface in contact with the globe 14 as shown in FIG. The DLC coating forms a DLC film by electrically accelerating ionized hydrocarbons and energetically hitting the object to be coated, so that the DLC coating 20 on the entire surface of the rod 12 requires a target ( Since the film forming material) must be reversed or rotated, the cost of the coating process is doubled, so that the coating may be performed only on the surface of the rod 12 in contact with the globe 14. The rod 12 may have any shape such as a circle, a square, or a plate as long as the hair can be wound. The shape of the glove 14 conforms to the shape of the rod 12. It is desirable to cover the portion of the hair iron 10 held by hand with a resin having low thermal conductivity.

The DLC coating 20 is applied to the glove 1
A method of applying only to the surface in contact with 4 will be briefly described. After applying a mask tape or a mask coating to an uncoated portion and applying a DLC coating 20 to a portion to be coated, the mask tape or the mask coating is removed, so that the DLC coating 20 can be applied only to a portion in contact with the glove 14.

[0012]

As is clear from the above description, the hair iron of the present invention has the following excellent effects. (1) DLC with high adhesion resistance is applied to the rod as the heating part
The coating prevented hair from burning on the heated area. (2) It has a high hardness even at a high temperature of 250 ° C. or more, and can be used semi-permanently without any fear of scratches due to slippage of the hair or frictional wear. (3) Since the coefficient of friction is small and the hair slides well, there is no snagging or the like, and the hair is not inadvertently damaged and stable work can be performed. (4) The processing cost can be halved by applying DLC coating only to the surface in contact with the glove.

[Brief description of the drawings]

FIG. 1 is a plan view of a hair iron according to the present invention.

FIG. 2A is a cross-sectional view of a case where the entire surface of the rod is DLC-coated and the rod and the globe, which are cross-sectioned in FIG. 1A-A, are closed. FIG. 1B is a cross-sectional view when the rod and the globe are closed in FIG. 1A-A in a case where only the surface of the rod in contact with the glove is DLC-coated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Hair iron 12 Rod 14 Glove 16 Heater 18 Support point 20 DLC coating 22 Power supply plug 24 Coating part

Claims (3)

[Claims] 1. A hair iron using an openable / closable electric heater in which a rod and a glove are rotatably connected substantially at the center thereof, wherein at least the rod on the heating side is provided with a DLC coating. Iron. 2. The DLC coating is applied only to the surface of the rod that contacts the glove.
The hair iron as described. 3. The hair iron according to claim 1, wherein both the glove and the rod are provided with a DLC coating.