A hair replacement assembly for simulating a hairline includes a net, which has a first face that is selectively engageable to a scalp of a user so that the net is removably engaged to the scalp. A plurality of filaments is engaged to the net and extends from a second face of the net. The filaments mimic hair of the user or a wig positioned on a head of the user. The net is one of a plurality of nets, with each net having a respective shape so that the plurality of nets comprises nets having a variety of shapes. Each net is shaped substantially complementarily to an associated target area on the scalp of the user so that the plurality of nets can cover a plurality of target areas. The filaments blend the target areas with the hair of the user or the wig.

Disclosed are a system, and method for fixation of hair fibers on a bald region on a human head. The method comprises pre-treating the bald region so that excess static electricity is removed from the bald region. The removal of static electricity improves fixation property the bald region. The method further includes, using a hair concealment device that is made up of a bottom and a top part. The top part is made up of metal and hence when a user touches metal portion with his hands, static electricity of the hair fibers is removed. This provides better fixation property to the human fibers and increases fixation to the bald region. The method further includes providing finishing to the bald region by spraying a soft gel to further improve fixation of hair to the bald region and natural human hair.

An acrylic fiber for artificial hair includes an acrylic copolymer obtained by copolymerizing acrylonitrile, vinyl chloride and/or vinylidene chloride, and a sulfonic acid group-containing vinyl monomer; and an organic solvent that can dissolve the acrylic copolymer, where the organic solvent is present in an amount of 0.1 to 3% by mass with respect to the total mass of the acrylic fiber for artificial hair. The acrylic fiber for artificial hair has an average surface roughness of 5900 μm.sup.2 or less in an area of 40 μm long and 80 μm wide of the side surface of the fiber.

Protein fibers for artificial hair include a polycation, wherein the protein fibers for artificial hair are crosslinked with an organic compound and/or a metal salt, and the protein fibers for artificial hair have curls. A method for producing the protein fibers for artificial hair includes treating artificial protein fibers that are crosslinked with an organic compound and/or a metal salt with a treatment solution containing a polycation, and curling the artificial protein fibers, or curling artificial protein fibers that are crosslinked with an organic compound and/or a metal salt, and treating the curled artificial protein fibers with a treatment solution containing a polycation.

An acrylic fiber for artificial hair includes an acrylic polymer and an organic solvent that can dissolve the acrylic polymer, wherein the acrylic polymer includes 29.5 to 79.5% by weight of acrylonitrile, 20 to 70% by weight of vinyl chloride and/or vinylidene chloride, and 0.5 to 5% by weight of a sulfonic acid-containing vinyl monomer with respect to a total weight of the acrylic polymer, and wherein a content of the organic solvent in the acrylic fiber is 0.1 to 3% by weight.

A hair apparatus, comprising: a cap layer cap layer configured to fit around a circumference of a user's head; at least one lace part disposed in a front portion of the cap; and a plurality of hair combs attached in a bottom or side part, to the inside surface of the cap layer.

Disclosed herein is a device which supplements an amount of hair on a human head. More specifically, the device allows a wearer to give an appearance of having a fuller thicker head of hair while the use of the device is undetectable to others. That is, the device enhances desirable aesthetic characteristics of hair in manner that makes the hair appear to be part of the wearer's natural hair growth.

A hair accessory has a helical elastic band that forms a closed circle. The hair accessory also has a weft having a hair retention member and a plurality of strands that extend from the strand retention member. The weft is spirally wrapped around the elastic band so that the weft completely encases the helical elastic band and allows the helical elastic band to move between an enlarged configuration and a contracted configuration. The helical elastic band is biased to the contracted configuration.

An acrylic fiber for artificial hair includes an acrylic copolymer obtained by copolymerizing acrylonitrile, vinyl chloride and/or vinylidene chloride, and a sulfonic acid group-containing vinyl monomer; and an organic solvent that can dissolve the acrylic copolymer, where the organic solvent is present in an amount of 0.1 to 3% by mass with respect to the total mass of the acrylic fiber for artificial hair. The acrylic fiber for artificial hair has an average surface roughness of 5900 ?m.sup.2 or less in an area of 40 ?m long and 80 ?m wide of the side surface of the fiber.

An acrylic fiber for artificial hair includes an acrylic copolymer obtained by copolymerizing acrylonitrile, vinyl chloride and/or vinylidene chloride, and a sulfonic acid group-containing vinyl monomer; and an organic solvent that can dissolve the acrylic copolymer, where the organic solvent is present in an amount of 0.1 to 3% by mass with respect to the total mass of the acrylic fiber for artificial hair. The acrylic fiber for artificial hair has an average surface roughness of 5900 ?m.sup.2 or less in an area of 40 ?m long and 80 ?m wide of the side surface of the fiber.