Artificial hair and wig using the same

a technology of artificial hair and wig, applied in the field of artificial hair, can solve the problem of still having a rigidity for bending lower than natural hair, and achieve the effects of lowering the rigidity for bending, excellent appearance, and difficult to recogniz

Inactive Publication Date: 2009-05-21
UNIHAIR COMPANY LIMITED
View PDF23 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0024]According to the present invention, the artificial hair can be provided which has a sheath/core structure, and has feeling (appearance, tactile and texture), various physical properties, especially rigidity for bending and its changing behavior by humidity close to those of natural hair. Further, the wig using the artificial hair having said sheath/core structure can provide natural feeling to the wearer and the surrounding observers more than the conventional wig using artificial hair made of a single synthetic fiber material.
[0025]Especially, by making artificial hair of a sheath/core structure with a sheath portion of a polyamide resin with rigidity for bending lower than a core portion, the rigidity for bending changes depending upon temperature and humidity, resulting in the artificial hair showing the behavior closer to human hair, and by said artificial hai

Problems solved by technology

As mentioned above, various synthetic fiber materials have their own merits and weak points, respectively, and among them, specific polyamide fibers, especially ny

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Artificial hair and wig using the same
  • Artificial hair and wig using the same
  • Artificial hair and wig using the same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0101]Explanation is next made in detail of examples of the present invention.

[0102]Using the spinning machine 20 shown in FIG. 3, the artificial hair 10 of Example 1 was manufactured. As a polyamide resin for the core portion 1B, nylon 6T (TOYOBO, LTD.) was used, and as a polyamide resin for the sheath portion 1A, nylon 6 (TOYOBO, LTD.) was used. For the quenching bath 24, hot water of 80° C. was used. By setting the sheath / core volume ratio as 1 / 7, and the outlet temperature at 310° C., the artificial hair 10 was manufactured. The sheath / core weight ratio was 12 / 88 for the artificial hair 10 of Example 1.

[0103]As a coloring agent, resin chips were used which were made by blending a polyamide resin used either for said sheath 1A or for core 1B and a pigment in pre-determined ratio, heating and melting, and cooling after kneading. These resin chips used as a coloring agent were defined as the master batch. As the master batch used in Example, the resin chips containing 3 weight % bl...

example 2

[0110]The artificial hair 10 of the sheath / core structure was manufactured by the same condition as Example 1, except that the sheath / core volume ratio was made 1 / 5 by adjusting respective gear pumps 21B and 22B. The sheath / core weight ratio of the artificial hair 10 of Example 2 was 16.1 / 83.9.

example 3

[0111]The artificial hair 10 of the sheath / core structure was manufactured by the same condition as Example 1, except that the sheath / core volume ratio was made 1 / 3 by adjusting respective gear pumps 21B and 22B. The sheath / core weight ratio of the artificial hair 10 of Example 3 was 24.2 / 75.8, and its diameter was 80 μm.

[0112]FIG. 7 is a graph showing the stretching ratio dependency of rigidity for bending of the artificial hair 10 of Example 3. In the figure, an abscissa axis shows a stretching ratio, and an ordinate axis shows rigidity for bending: 10−5 gfcm2 / strand. The measurement condition was temperature 22° C. and humidity 40%. As is obvious from FIG. 7, the rigidities for bending for stretching ratios 3 and 5.5 were 430×10−5 gfcm2 / strand and 720×10−5 gfcm2 / strand, showing that rigidity for bending increased linearly with the increase of stretching ratio.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Currentaaaaaaaaaa
Digital informationaaaaaaaaaa
Temperatureaaaaaaaaaa
Login to view more

Abstract

An artificial hair and a wig using the same are provided which have such feeling as appearance, tactile and texture and preferable physical properties similar to natural hair, wherein an artificial hair 1 has a sheath and core structure comprising a core portion 1B and a sheath portion 1A covering said core portion 1B, and by making the core portion 1B of a polyamide resin, especially a semi-aromatic polyamide resin, and the sheath portion 1A of a polyamide resin having a rigidity for bending lower than the core portion 1B, especially a linear saturated aliphatic polyamide resin, the rigidity for bending, for example, can be made to have a value close to that of natural hair, and further its variation behavior depending upon humidity can be controlled quite similar to natural hair, thereby the wig made of it as a material has natural feeling, so that the wig having an excellent appearance can be offered.

Description

TECHNICAL FIELD[0001]This invention relates to artificial hair having physical properties and feeling similar to natural hair and a wig using the same.BACKGROUND ART[0002]Wigs have been manufactured and used since ancient age with natural hair as the material, but recently such problems as the supply limitation of natural hair material and others caused the manufacture to increase using synthetic fibers as hair material for wigs. In this case, the synthetic fiber to be used is selected with the primary target that it is basically close to natural hair in terms of feeling and physical properties.[0003]The artificial hair materials to be used are synthetic fibers of acrylic, polyester, and polyamide in many cases, but acrylic fibers in general have low melting point and poor heat stability, so that they have such weak points as poor shape preservation after permanent wave setting, resulting in distortion of setting, for example, such as curl and the like when soaked in warm water. Pol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A41G3/00
CPCA41G3/0083D01F8/12D01D10/00A41G3/00A41G5/00
Inventor SHIRAKASHI, YUTAKAWATANABE, TAKAYUKIASAKURA, OSAMUIRIKURA, AKEMIIL, KAZUMIWATANABE, MUTSUKOKOJIMA, HIROMISUGAWARA, FUMITAKA
Owner UNIHAIR COMPANY LIMITED
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap