JPH0467805A - Microwave activated hair color - Google Patents

Abstract

PURPOSE: To provide a hair curler which is quickly heated to a using temperature in a microwave oven or heated by an electric heater by being heated by microwave energy and providing a cylindrical main body which has sufficient hardness for rolling a hair therearound and is composed of a uniform base material composition having an electromagnetic absorber mixed therein. CONSTITUTION: A hair curler main body 13 is composed of a base material having an electromagnetic absorber mixed therein so as to be formed into a uniform base material composition which can be heated by being exposed to microwave energy. Materials suited to the hair curler main body 13 can be manufactured by mixing polyorganosiloxane rubber and the granular electromagnetic absorber together so as to make a uniform silicone rubber composition which can be heated by being exposed to the microwave energy. This hair curler 11 is heated by being exposed to the microwave energy just like in a microwave oven or exposed to an electric heating source. It can hold a long-time operating temperature, be conveniently used because the end cover is not hot, and be prevented from being rapidly degraded even by being exposed to the sunlight, heat, or chemical.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for drying and curling hair using microwave or electric heating sources interchangeably, and a method of utilizing such an apparatus. It is something.

[Conventional technology and issues]

Hair curlers are known for use in drying and curling hair, and are available in a wide variety of shapes. Generally, traditional hair curlers are
It was made of a material that was transparent to microwaves, such as plastic, and was shaped into a cylinder or spool, and was heated with steam or hot water. Alternatively, it has a hollow hole and is heated by fitting an electric heating rod into it. Other conventional electrically heated hair curlers are made of flexible rods that can themselves bend to hold the hairstyles wound thereon (e.g., Morrison U.S. Pat. No. 4,584).
62, April 22, 1986). Conventional electrically heated hair curlers require a long time to reach operating temperature and cannot retain heat effectively.

Other conventional hair curlers have been molded from synthetic compositions that include microwave absorbing materials such as ferrites, and therefore such compositions are microwave operable. However, conventional microwave operated hair curlers were sealed at both ends, making them unsuitable for use with existing electrical heating devices.

Additionally, prior art designs were complex and included internal sleeves, heat sinks, cores, and the like.

[Means to solve the problem]

The object of the present invention is to provide a hair curler that can be heated quickly to working temperature in a microwave oven and also with existing electric heating devices.

Another object of the invention is that the hair curler can also be heated by microwaves or electric sources, and
An object of the present invention is to provide a hair curler having excellent heat loss characteristics.

Other objects, features and advantages will become apparent from the description below.

The microwave heatable hair curler of the present invention has an elongated body comprised of a matrix mixed with an electromagnetic absorbing material. Preferably, the hair curler of the present invention has a tubular hair curler body comprising an open interior and an exterior having at least one open end, the body being heated by being exposed to microwave energy. Made of matrix mixed with electromagnetic absorbing material to create a possible homogeneous matrix composition.

In preferred embodiments, the hair curler body is generally cylindrical with a predetermined inner diameter dimensioned to accommodate the hair curler body in the upwardly extending rod of the electrically heated hair curler device. It is. The base material is preferably a silicone rubber composition, which is extruded from a mold and then cut into desired lengths. This silicone rubber composition is a mixture of polyorganosiloxane rubber, granular electromagnetic absorbing material, filler, and curing catalyst,
The result is a homogeneous matrix composition that can be heated when exposed to microwave energy.

The hair curlers of the present invention can also be heated by exposure to microwave energy or by operating an electrical heating source.

FIG. 1 shows a microwave heatable hair curler of the present invention, shown generally as 11.
can be of various shapes.

For example, it has an elongated rod-like shape as shown in the above-mentioned US Pat. No. 4,584,462.

Preferably, the hair curler 11 includes a flexible cylindrical hair curler body 13 having a length, an opening interior 15 and an exterior 17 as shown in FIG.
It has a plurality of elongated ribs 19 in the length direction of the main body. The plurality of ribs 19 forming the outer periphery of the hair curler 11 are scallop-shaped when viewed from the end or as seen in the cross-sectional view of FIG.

As shown in FIGS. 1 and 2, the hair curler body 13
has opposite ends 21, 23, at least one of which is open. As shown in the embodiment, the end 21 is provided with an end cap 25. Its external shape is the main body 13
The hair curler body 13 has an internal protrusion 27 which is received within the opening 15 of the hair curler body 13.

The hair curler body 13 of the present invention is made of a matrix mixed with an electromagnetic absorbing material to create a homogeneous matrix composition that can be heated by exposure to microwave energy. The matrix can be any of a number of commercially available moldable and extrudable thermoplastic and thermoset materials, such as natural rubber, synthetic rubber, styrene butadiene rubber, ethylene propylene rubber, chloroprene or nitrile rubber. be. Other plastic materials that can be used include polysulfides, urethanes and acrylic materials.

The base material may be any material as long as it can be hardened to a stiffness sufficient to wrap hair and can be homogeneously mixed with the microwave absorbing material. The preferred matrix is a silicone rubber composition, since many of the above materials contain carbon black reinforcement and are subject to oxidation, ozone degradation, and long-term embrittlement due to general use. The end cap 25 may be any of the matrix materials listed above, but does not include microwave absorbing material.

The preferred matrix material for the hair curler body 13 is prepared by mixing a polyorganosiloxane rubber with a particulate electromagnetic absorbing material to create a homogeneous silicone rubber composition that can be heated by exposure to microwave energy. One organopolysiloxane polymer or rubber used as a suitable matrix of the present invention that can be manufactured is:
It is a known material and can be made by standard methods known in the art. Preferred polymers are organopolysiloxane rubbers containing methyl, vinyl, phenyl and/or 3,3.3-)lifluoropropyl groups bonded to the silicon atoms of the polymerized siloxane. Examples of organopolysiloxane rubbers include those in which the siloxy unit is dimethylsiloxane, phenylmethylsiloxane, 3,3.3-
There are polymers, copolymers and mixtures thereof which are trifluorobylmethylsiloxane, diphenylsiloxane, methylvinylsiloxane and phenylvinylsiloxane. Discussions regarding the production of such compounds include
For example, Eaborn D., “Organosilicone Compounds,” Academic Press, New York 1959, Mon.
ter+5oso "Silicone Rubber" by Morton E.D.
Introduction - Rubber Technology (Intr
Production to Rubber Techno
Reinhold Publishers New York 1959, Roco E.G.
“Introduction to the Chemistry of Silicones” (＾n Intr.
production to the chemistry
of 5ilicones) Ed John Wiley and Sons
ns) New York 1951.

The most preferable organopolysiloxane polymer used in the method of the present invention is such that the content ratio of organic groups in the rubber is 99.80% by weight of methyl groups and 0.20% by weight of vinyl groups.
% by weight of dimethylvinylsiloxy-terminated polydiorganosiloxane. Preferred polymers are about 1.2
It has a specific gravity ranging from 4 to 1.29 and a durometer hardness of about 40 to 55.

Particulate electromagnetic absorbing material is mixed with the matrix to provide a microwave-heatable matrix composition. Many such materials are commercially available, including ferrite, iron powder, aluminum powder and zinc oxide. A preferred absorbent material is dumbbell oxide, which has a 100%
When mixed in the range of 5 to 30 parts to a polyorganosiloxane rubber, it heats to a temperature in the range of 54.4 to 57.2 °C (130 to 135 °F) when exposed to a 700W microwave for 1 to 3 minutes. A silicone rubber mixture is obtained.

The polyorganosiloxane rubber can include any conventional filler. These fillers are known and can be supplied commercially from many sources. A preferred material is a silica filler, sometimes referred to as a reinforcing filler or a mixture of silica filler and extender. Examples of silica fillers that can be used to reinforce organopolysiloxane elastomers include fumed silica, precipitated silica, silica aerogel, and the like.

Fillers, including reinforcing and non-reinforcing fillers, preferably range from about 10 to 260 parts, most preferably from about 20 to 8 parts per 100 parts of organopolysiloxane rubber or elastomer.
0 copies used.

To rapidly convert the polyorganosiloxane composition to a cured, solid elastic state, a variety of curing agents are used, such as benzoyl peroxide, bis(2,4-dichlorobenzoyl) peroxide, and the like. These curing agents are normally present in the polyorganosiloxane compositions from about 0.1 parts to often 4 to 8 parts per 100 parts of the organopolysiloxane mixture.

In addition to the above ingredients, the silicone rubber matrix composition of the present invention contains a heat-stable additive, a compression-stability additive, a handleability-improving additive, a dye or coloring additive and its geothermally cured silicone elastomer and room-temperature cured elastomer. Conventionally used additives can be added.

Preferred silicone rubber matrix compositions are made by mixing or grinding the various components together. The order in which the elastomer, filler, hardener and electromagnetic absorber are added is not critical.

[Example] The invention will be illustrated by the following examples.

Polyorganosiloxane rubber 60.0 Zinc oxide 15.0 H21 Silica 23.0 Tissue suppression liquid
2.0 Pigment (Blue) 0.6 Benzoyl Peroxide Catalyst 0.6*Nodular, Pure Zinc Oxide, Specific Surface Area (
7 m"/g) The above mixture was heated to a diameter of 12.71 mm in order to obtain a hair curler body having an approximately cylindrical shape as shown in FIG.
1 (0,500 inch), inner diameter 1.651i+i+(0
It was extruded through a mold of approximately 30.5 inches (100 feet). The extrusion belt speed was 8.5 m/min (28 fibers/min) to obtain good partial curing of the polymer.
minutes). The extruded body is then 6.35
Hair curler sections cut to ci (2,5 inches) lengths and so produced were heated at 204°C (400°F).
) for 1 hour. The ends 1!25 were attached to one end 21 of each hair curler body and welded by heat or using a suitable adhesive.

In the method of the present invention, the hair curler 11 is heated by exposing it to macrowave energy, such as in a microwave oven, or by exposing it to an electrical heating source. A known electrical heating source 29 useful for heating curlers 11 is shown, which includes a non-conductive base 31 and a plurality of upwardly extending rods 33 resting thereon. It has one end 35 in a thermally conductive connection with an electric heating element 37 located in the base 31 . The electric heating element is connected to the current source by the supply line 39
and is connected in series with the thermostat 41 together with the heating element 37 in a thermally conductive connection.

The thermostat 41 controls the supply of electricity to the heating element 37 when at least one of the plurality of rods 33 arranged on the base reaches a certain temperature, i.e. when the hair curler 11 placed on the rod has previously Approximately 54.4-57.2℃ (
It is set to shut off when it reaches a temperature of 130-135 degrees Fahrenheit. Electric heating sources of the type described can be found, for example, in Jorgensen, Re. U.S. Pat. No. 26,766, Re. January 13, 1970.
Day, name: “Heating and hair setting device” (^ppar
atus For Ileating And Set
ting Hairs).

A pouch, such as that shown in U.S. Pat. No. 4,584,462, is an electrically heated flexible bar made of a matrix and a mixed electromagnetic absorbing material in accordance with the techniques of the present invention. Can be used to heat curlers.

FIG. 4 shows that the tubular hair curler shown in FIG.
It shows the average temperature rise when heated in a W microwave oven at 100% output for 0 to 15 minutes.

The temperature at X=O is room temperature 22.2°C (72°F).

As shown in FIG. 4, the microwave-operated hair curler of the present invention can:
A useful temperature range of 51.7-57.2°C (125-
135°F) in 2-3 minutes. Figure 4 also shows a comparison with a commercially available electrically heated tubular hair curler, which was tested according to the manufacturer's guidelines. Heated in specially designed heating chambers. The "small" hair curler has a length of 18.4cm (7-4 inches), an outer diameter of 16.3 x m (0.64 inches) and an inner diameter of 10.
．． It was 7im (0.4200 inches). The "large" hair curler had a length of 18.4 cll (7?a inches), an outer diameter of 16.3 cs+ (0.64 inches) and an inner diameter of 14.3 zm (0.5625 inches).

The microwave operated hair curler of the present invention has a desired useful temperature of 51.7-57.2°C (125-135°F).
) was reached in 2 to 3 minutes when the microwave was activated. During this same period of time, the comparison hair curler achieved a desired useful temperature of 51.7-57.2°C (125-135°F).
) was 13.9-19.4°C (25-35°F) lower.

FIG. 5 shows the average heat loss of the microwave operated hair curler of the present invention compared to a commercially available electrically heated hair curler. The graph shows the average heat loss of two sets of four hair curlers each. A microwave-operated hair curler, shown in Figure 1, was heated in a 700W microwave oven at 100% power for 2 minutes. A comparison hair curler was electrically heated. The average temperature of the hair curlers was measured every 10 seconds for the first 2 minutes and at 1 minute intervals for the next 3 minutes. The average temperature of both hair curler sets was then plotted at 1 minute intervals.

As shown in FIG. 5, the hair curler of the present invention cools at an acceptable rate compared to commercially available electrically heated hair curlers.

It has been found that the hair curler of the present invention not only has the flexibility of being microwave or electrically heated, but also has actually superior heat retention compared to conventional electrically heated hair curlers. 6 shows that the hair curler of the present invention retains heat for a longer time than the conventional electrically heated hair curler when the electric heating cycle is 5 minutes. 0. This is a case where the hair curler was heated in a heating cycle of about 26 minutes using a heating device as shown in FIG.

The invention has various advantages. The hair curler of the present invention is quickly heated to operating temperature in a standard household microwave oven. The hair curler of the present invention can also be electrically heated with a number of commercially available electric heating devices. The 0-strand hair curler maintains its operating temperature for a longer period of time than a hair curler.The base material of the 6-momme lid does not contain microwave absorbing material, so the end lid does not get hot even after a heating cycle, making it easy to use. The silicone rubber composition used in this manufacturing method, which can be manufactured by a simple extrusion method using inexpensive molds, does not deteriorate rapidly over time or when exposed to sunlight, heat, or chemicals.

Although the present invention shows only one example of the form, the present invention is not limited to this, and various changes and modifications can be made without departing from the spirit of the present invention.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the hair curler of the present invention, with the end cap removed for ease of explanation. FIG. 2 is a sectional view taken along the line ■-■ in FIG. FIG. 3 is a perspective view of an electric heating device carrying the hair curler of the present invention. FIG. 4 is a temperature rise versus time graph comparing a hair curler of the present invention heated by microwave energy to a commercially available electrically heated hair curler. FIG. 5 is a graph of heat loss versus time comparing a hair curler of the present invention heated by microwave energy to a commercially available electrically heated hair curler. FIG. 6 is a graph of heat loss versus time comparing the electrically heated hair curler of the present invention with a conventional electrically heated hair curler over a heating cycle of about 5 minutes. FIG. 7 is a graph similar to FIG. 6 comparing the electrically heated hair curler of the present invention with a 26 minute heating cycle and a conventional electrically heated hair curler. 11: Hair curler 27: Internal protrusion 13: Hair curler body 29: Electric heating source 15; Inside the opening
31: Basal 17:・External 33
: Rod 18: Material 19: Rib 21: End 23: End 25: End cover 35: Rod end 37: Electric heating element 39: Supply line 41: Thermostat Cliff f'Fl

Claims (7)

[Claims] (1) consisting of a generally cylindrical body with an open interior, exterior, and opposing ends, the body consisting of a homogeneous matrix composition mixed with an electromagnetic absorbing material, and capable of being exposed to microwave energy; A microwave-operated hair curler that can be heated by and has sufficient stiffness to curl hair. (2) A silicone rubber composition whose base material is extruded from a mold and then cut into desired lengths. The microwave operated hair curler of claim 1, wherein the homogeneous matrix composition is mixed and heated when exposed to microwave energy. (3) A microwave-operated hair curler according to claim 2, which is interchangeably heatable by electrical energy from an electrical heating device of the type having an upwardly extending heating rod. 4. The microwave actuated hair according to claim 3, wherein the open interior has a preselected inner diameter such that the hair curler body can receive an upwardly extending wand of the electric heating device. curler. (5) comprising an end cap applied to one of the open ends of the generally cylindrical hair curler body;
Microwave operated hair curler as described in. (6) the electrical heating member has a plurality of upwardly extending heating rods thereon, at least one of the heating rods receiving a microwave heatable hair curler thereon;
Each of the heating rods has a conductive element coupled to an electrical heat source for transferring heat to the hair wound on the outer surface of the tubular hair curler body, so that the hair curler body is not exposed to electrical or microwave radiation. 6. A microwave-operated hair curler according to claim 5, which is heatable by being heated. 7. The microwave-operated hair curler of claim 6, having a plurality of elongated ribs along the length of the outer surface between opposite ends of the hair curler body.