KR100650019B1 - Process for heating treatment of synthetic wig thread - Google Patents

Abstract

The present invention relates to a heat treatment method of a synthetic wig. Synthetic wigs prepared by conventional methods are first heated at a temperature close to the melting point of the resin used in the production of synthetic wigs in a heating frame for 1 hour, quenched to room temperature after the first heating is completed, and the primary heating process is completed. After the secondary heating to a temperature of 90 ~ 100 ℃ characterized in that.

Heat treatment method of synthetic wig, over curl.

Description

Heat Treatment Method of Synthetic Wig {PROCESS FOR HEATING TREATMENT OF SYNTHETIC WIG THREAD}

The present invention relates to a heat treatment method of a synthetic wig, in particular, the hair is over curled when permanent wave the hair consisting of a synthetic wig at a high temperature using a hair setting device such as a perm device, a hair dryer The present invention relates to a heat treatment method of a synthetic wig so that it can be prevented.

Generally, polyvinyl chloride (PVC) resins and polyethylene terephthalate resins are widely used as raw materials for synthetic wigs. For example, polyvinyl chloride, which is used as a raw material for synthetic wigs, is known to have a drawback that the wig yarn can be easily cut because the plasticity temperature is low, the heat resistance and the light fastness are low, and the Young's modulus is poor. In the case of polyvinyl chloride-based resins, in consideration of this point, acrylic resins are mixed and extruded and stretched in a drawing roll to obtain a desired drawing ratio. However, synthetic wigs manufactured in this way have the drawback that the hair is severely overcured when the hair is processed by a high temperature hair setting mechanism and the physical properties of the hair are destroyed due to the high temperature heating.

On the other hand, polyethylene terephthalate resin is known to be excellent in curling ability by thermal properties, stability of the hair style by the shape stability, various deformation ability of the hair style.

Since the method for preventing over curling of the hairs prepared using such polyethylene terephthalate resin is not proposed by post-treatment, it is not possible to prevent over curls during hair curling of the hairs.

In general, the hairs composed of these synthetic wigs are curled at a high temperature of 120 to 130 ° C. using a hair setting device such as a perm device and a hair dryer, thereby preventing over curling of the hair and preventing curling. Stability of the hair style by the stability, it is good to ensure excellent deformation ability of the hair style.

In the present invention, the synthetic wig is heat-treated as a post-treatment step after the production of the synthetic wig to prevent over curling during the hair curl processing of the hair. There is a purpose.

To this end, in the present invention, the synthetic wig prepared by the conventional method is first heated at a temperature close to the melting point of the resin used for the production of the synthetic wig in a heating frame for 1 hour, and then quenched to room temperature after the first heating is completed. It is characterized in that the secondary heating to a temperature of 90 ~ 100 ℃ after the primary heating process is finished.

In the present invention, when the resin used in the synthetic wig is a polyvinyl chloride resin, the primary heating temperature is 130 to 140 ° C. When the resin used in the synthetic wig is a polyethylene terephthalate resin, the primary heating temperature is 180 to 190 ° C.

Hereinafter, the present invention will be described in detail.

The present invention heat-treated synthetic wigs produced by a conventional manufacturing method.

Synthetic wigs produced by conventional methods, when using a polyvinyl chloride-based resin or polyethylene terephthalate resin as a raw material, through a series of steps of melting and extruding, stretching and heat setting the raw materials at a temperature above their melting point Prepared by synthetic wigs. For example, in the case of polyvinyl chloride, the processing temperature is 150 ~ 170 ℃ and according to the prior art stretching at a temperature of about 120 ℃ or less in the stretching step after extrusion spinning. On the other hand, in the case of polyethylene terephthalate resin is melt-extruded and radiated at a melting point of 256 ℃ or more and subjected to the stretching process at a temperature of 85 ~ 95 ℃.

In the present invention, the conventionally prepared synthetic wigs are heat treated so that over curling can be prevented when the hair is processed with a hair setting apparatus having a hair conditioner of 120 ° C. or higher.

Example 1

Synthetic wigs usually manufactured using polyvinyl chloride resin are wound on a rectangular frame or round frame or bobbin of a certain size and heated at 130-140 ° C. near the processing temperature of 150 to 170 ° C. of the polyvinyl chloride resin for 1 hour. do. At this time, care should be taken not to reach the melting temperature of the polyvinyl chloride resin, and heating is better than indirect heating rather than direct heating. After the heating process is completed, it is rapidly cooled to room temperature so that heat setting of the wig can be achieved. This heating and rapid cooling process is repeated 3-4 times to ensure that the wig yarn has heat resistance.

After the completion of the primary heat treatment process, the synthetic wig enters the secondary heat treatment process to have resilience to physical property destruction by high temperature heating.

In the secondary heat treatment process, a softening agent for preventing discoloration of the synthetic wig, moisturizing, ease of combing, and flexibility is given to the synthetic wig, and heated at a temperature of 90 to 100 ° C. for 1 hour to restore the basic properties of the synthetic wig.

After finishing this secondary heat treatment, warm air drying or natural hardening for several hours.

Example 2

Synthetic wigs conventionally prepared using polyethylene terephthalate resin are wound in a rectangular frame or round frame or bobbin of a constant size and heated to a temperature of 180-190 ° C. lower than their melting point for 1 hour. At this time, care should be taken not to reach the melting temperature of the polyethylene terephthalate resin, and heating is better than indirect heating rather than direct heating. After the heating process is completed, it is rapidly cooled to room temperature so that heat setting of the wig can be achieved. This heating and rapid cooling process is repeated 3-4 times so that the wig yarn has a rail property.

After the completion of the primary heat treatment process, the synthetic wig enters the secondary heat treatment process to have resilience to physical property destruction by high temperature heating. This secondary heat treatment process is the same as in Example 1.

That is, in the secondary heat treatment process, a softening agent for preventing discoloration of the synthetic wig, moisturizing, ease of combing, and flexibility is given to the synthetic wig, and heated at a temperature of 90 to 100 ° C. for 1 hour to restore the basic properties of the synthetic wig. do.

After finishing this secondary heat treatment, warm air drying or natural hardening for several hours.

As described above, it was confirmed that the hair curling using the synthetic wig treated according to the present invention can prevent over curling during high temperature processing by the hair setting mechanism.

Comparative example

For the comparative test of the present invention, about 100 hairs treated according to the present invention were taken to prepare a hair curling tool for a test such as a hair setting device. This hair curling tool is made of a metal with good thermal conductivity and composed of a cylinder having a diameter of 70 mm. Hair curls can be processed on the wig by applying the indirect heat of 140 ~ 150 ° C., which is considered to be a temperature at which the curled hair is treated in accordance with the present invention in a cylindrical hair curling tool having a diameter of 70 mm and artificially appears over curl. It was made. After 2 minutes of heating time, the diameter of the round hair of the wig did not significantly deviate from the initial processing diameter.

The following table is a synthetic wig (C) of the synthetic wig (A) of the polyvinyl chloride resin (A) and the synthetic wig (B) of the polyethylene terephthalate resin, which has been prepared according to the present invention, but has not been heat-treated as in the present invention. The results of the over curl test described above are shown. 100 specimens of hair were used for each specimen and the diameter of the hair was measured within 30 minutes after the hair was processed.

As a result of the above test, the synthetic wigs treated according to the present invention were prevented from being over-curled during hair curling because the physical destruction of the high-temperature heating was prevented.

As described above, the present invention can prevent the curling of the hair when the hair is composed of the synthetic wig at a high temperature by using a hair setting device such as a perm mechanism or a hair dryer by heat treatment of the synthetic wig.

Claims (3)

Synthetic wigs prepared by conventional methods are first heated at a temperature close to the melting point of the resin used in the production of synthetic wigs in a heating frame for 1 hour, quenched to room temperature after the first heating is completed, and the primary heating process is completed. After the secondary heat treatment method characterized in that the secondary heating at a temperature of 90 ~ 100 ℃. The method according to claim 1, wherein the resin used in the synthetic wig is polyvinyl chloride and the primary heating temperature is 130 to 140 ° C. The method of claim 1, wherein the resin used in the synthetic wig is polyethylene terephthalate resin and the primary heating temperature is 180 ~ 190 ℃.