Artificial Hair, Wig Using the Same, and Method of Making Artificial Hair

Abstract

An artificial hair bundle (10) is made up by mixing a first artificial hair made of a polyester resin (1, 2) and a second artificial hair made of a polyamide resin (5, 6), and the first artificial hair (1, 2) is made of polyethylene terephthalate and polybutylene terephthalate, having a cross-sectional size and bending rigidity similar to those of natural hair, wherein the bending rigidity is in the range of about 6.5 to 7.8×10⁻³ gf·cm²/strand at humidity 40%, and the first artificial hair (1, 2) suppresses bundling of the second artificial hair (5, 6), and the first and the second artificial hairs (1, 2, 5, 6) behave similarly to natural hair.

Description

TECHNICAL FIELD[0001]This invention relates to artificial hair having feeling and physical properties similar to those of natural hair, a wig using the same attached thereto, and a method of making the artificial hair.BACKGROUND ART[0002]Natural hair in general has a diameter of about 80 to 100 μm, and is curled naturally or by a permanent wave treatment, but has a characteristic property that the curl is deformed and stretched when wetted by exposure to the rain or washing. Also, it is known that such as moist and tactile feelings, or such physical properties as bending rigidity are changed by the change of humidity. Therefore, natural hair obtained from humans and animals has long been prepared and used fondly as a material so as to have the characteristics as much as possible similar to that of human hair. However, for the reason of restricted supply of natural hair material or others, synthetic fibers have recently been often manufactured as a hair material for a wig. For exampl...

AI Technical Summary

Benefits of technology

[0034]According to the present invention, the artificial hair of a polyester resin can be provided which has feeling (appearance, tactile and texture) and physical properties, especially bending rigidity similar to that of natural hair. Since said artificial hair suppresses bundling of the artificial hairs of a polyamide resin, the artificial hairs of a polyamide resin are no longer bundled and disintegrated to each strand by using and mixing proper number of strands as hair in the wig having the artificial hairs of a polyamide resin attached thereto. Therefore, this artificial hair puts artificial hair of a polyamide resin into the smooth state, and can show the similar behavior to natural hair. Therefore, by the wig of the present invention, since the hair attached to the wig shows the similar behavior to the wig wearer's own hair, the wig wearing is hardly visible, and provides excellent appearance.

[0035]Since conventional artificial hair of a polyester resin has higher bending rigidity than that of natural hair, it stands up markedly from a wig base, and together with the low bending rigidity of artificial hair of a polyamide resin attached to the same wig base, the artificial hair of a polyester resin stands up and is markedly distinguished, the wig wearing is highly visible, and uniformity as a hair style can not be attained. On the other hand, if artificial hair of a polyester resin attached to a wig base has bending rigidity lower than that of natural hair, it is in the state as if lying down along the wig base. Therefore, the stand up of artificial hair of a polyamide resin of bending rigidity similar to that of natural hair is highly visible, and since the standing and the lying hairs are mixed, the wig wearing is easily visible, and uniformity as a hair style can not be attained. On the other hand, since said artificial hair of a polyester resin according to the present invention has bending rigidity similar to that of natural hair, it stands up similar to that of artificial hair of a polyamide resin attached to a wig base, and the wig wearing is hardly visible.

Problems solved by technology

However, when the artificial hairs made of polyamide fibers are attached to a wig base, they have a tendency to stick together to be bundled as a plurality of strands as time elapses.

Therefore, when artificial hairs of polyamide are bundled by absorbing moisture, for example upon wetting in the rain or hair-washing, a wig wearer has such a problem that combing, brushing and hair-styling of the bundled hairs would not be disintegrated each strand, and hence it takes time to set a desired hairstyle.

This property is same for the artificial hair of a sheath / core double structure of the above-mentioned aliphatic and aromatic polyamide resins, and it is difficult to prevent bundling of the artificial hairs of polyamide fibers, and since artificial hairs are adhered tightly at higher humidity, it is also difficult to prevent them from bundling.

If the artificial hairs of mixed polyester fibers and nylon fibers are attached to a wig base, as described in Patent reference 2, bundling of nylon fibers can be prevented, but nylon fibers lie down on the wig base like natural hair, whereas the artificial hairs of polyester fibers stand up, and hence do not blend well with natural hair and nylon fibers, resulting in appearance of separation.

This tendency is more noticeable at higher humidity, and nylon fibers lie down due to their moisture absorbency in high humidity to be stuck to a scalp like natural hair, whereas since polyester fibers have high bending rigidity and low moisture absorbency, they keep the state of standing up, and hence the wig wearing can not show natural appearance and is easily visible.

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