Perm rod

Abstract

Disclosed herein is a perm rod. The perm rod includes a body, a sheet of permanent wave paper, and a rubber band. The body is made of an aluminum material, has a hollow cylindrical shape, and is configured such that hair is rolled around the body, a plurality of slots is formed in the outer surface of the body, and caps, having coupling protrusions, are fitted into the respective ends of the body. The sheet of permanent wave paper is rolled around the body in the state in which an appropriate number of hairs is placed on the sheet of permanent wave paper. The rubber band has coupling holes, which are formed in the respective ends thereof, and is detachably coupled to the coupling protrusions.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates generally to a perm rod, and, more particularly, to a perm rod that reduces damage to the waves of hair and also reduces the time taken to curl hair, thus making it easy and convenient to perform the permanent waving of hair.[0003]2. Description of the Related Art[0004]Generally, dyeing or permanent waving is performed in order to create a hairstyle that expresses one's own personality. Such permanent waving is generally performed using perm rods. In greater detail, in order to form waves in hair, permanent waving is performed in such a way that an appropriate number of hairs is placed on a sheet of permanent wave paper, a permanent waving agent is distributed thereon, the sheet of permanent wave paper is rolled around a body having the shape of a perm rod, fixed using a band, maintained for a predetermined period of time while being heated, and then unrolled.[0005]FIGS. 1 and 2 show a conv...

AI Technical Summary

Benefits of technology

"The present invention provides a durable and highly thermally conductive perm rod that can be used for a long time. The rod is made of aluminum and has a hollow cylindrical shape with slots and caps for easy handling. A rubber band is detachably fastened to the rod for easy use. The rubber band has coupling holes for easy attachment to the rod. The rod may also have frictional protrusions for easy gripping. The technical effects of this invention are improved durability, high thermal conductivity, and convenient handling of a rubber band."

Problems solved by technology

However, synthetic resin is a material that has well-known disadvantages in that it has poor chemical resistance and in that it has a heat-sensitive characteristic.

Accordingly, if the body 10 is manufactured to be thinner than a critical thickness, a problem occurs in that the body 10 is damaged because it does not resist the toxicity of the permanent wave agent, which is used in the process of performing permanent waving, and is also easily deformed by heat.

However, if the body 10 is made thick, as described above, problems occur in that a hanging phenomenon occurs due to the increase in the weight of the body 10, and in that heat is not effectively transmitted to hair due to the decreased thermal conductivity, so that the heating temperature must be set higher and the heating time must be set longer in order to effectively form waves in the hair in the process of performing permanent waving.

However, conventionally, the rubber band 30 used to fix the sheet of permanent wave paper 20 is made of thin rubber material, so that there is a disadvantage in that it is difficult to perform fine work, such as holding the thin rubber band 30 with the fingers or fitting the thin rubber band 30 into the band depressions 12 while holding it with the fingers.

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