A hair weft includes a first hair weft unit and a second weft unit, the first hair weft unit includes a first hair strand and a first glue base, wherein the first hair strand is fixed to the first glue base, the second weft unit includes a second hair strand and a second glue base, wherein the second hair strand is fixed to the second glue base, wherein the first glue base is attached to the first glue base.

A fair filler device may be provided. A hair filler device may include a backing having a base and a flap portion. A plurality of hair strands may project from the base and the flap. Hair filler device may further include at least two clips disposed on the base for securing the hair filler device to a desired material, such as a wearer's existing hair.

A combination for supporting a hair extension may include a package including a plastic sheet and stabilizing material, and a hair extension including strands of hair including a root end and a tip end and a weft track. Each strand of hair may be attached along a length of the weft track by the root end, wherein the weft track may be removably attached to the plastic sheet, the strands of hair may be wound around the stabilizing material, and the stabilizing material may prevent movement of the strands of hair.

A hair extension device for providing hair extensions for integration into a user's hair, having a plurality of wefts connected to each other, configured to generally accommodate a portion of the user's head, with openings to allow some of the user's hair to be pulled through the extension device, having hair extensions attached to selected portions of the wefts, and having a plurality of clips connected to the wefts and adapted to allow the secure attachment of the hair extension device to the user's hair.

A two-piece hair extension device is provided having a first piece comprising a first attachment portion and a weft portion and second piece comprising an second attachment portion. The first and second attachment portions are configured to be pressed against each other with the wear's hair intertwined there between. One or more wefts of filaments are attached to the backside of at least one of the first or second attachment portions.

A hair accessory includes bundled synthetic braiding hair. The bundled synthetic braiding hair can include a first bundle of synthetic hair strands having a first length, a second bundle of synthetic hair strands having a second length that is shorter than the first length. Other bundles with different lengths can be included as well. A binder can be coupled about a waist of the bundled synthetic braiding hair. When the bundled synthetic braiding hair is folded about the binder, the different strand lengths work to define a substantially cardioid shaped perimeter of the bundled synthetic braiding hair.

A hair extension for integration with a person's head of hair is described in this disclosure. The hair extension illustratively includes a plurality of supplemental hairs and an attachment band that provides means for removably coupling the plurality of supplemental hairs to natural hairs included in the person's head of hair. The attachment band is illustratively flexible and couples to natural hairs included in the person's head of hair mechanically.

A method of integrating a hair extension weft on a human scalp is disclosed. The hair extension weft includes a polyurethane strip enclosing a plurality of meshes arranged in a longitudinal direction of the strip. Each mesh is configured to have a plurality of contiguous hairs attached in a transverse orientation. The hair extension weft includes several gaps formed between the plurality of meshes in the longitudinal direction. Each gap is configured to receive a plurality of hairs from the human scalp. Upon clipping the hair extension weft to the human scalp, the plurality of hairs is pulled through each gap with a needle shaped tool placed under the each gap of the hair extension weft. A microbead is clamped to the plurality of hairs pulled through the each gap, to anchor the hair extension weft to the human scalp.

What is claimed is an natural hair extension. The hair extension is formed with a foundation of an elastic mesh into which wefts of natural hair are sewn. The elastic may also be covered by a ribbon to prevent irritation of the scalp.

An acrylic fiber for artificial hair includes an acrylic polymer, wherein the acrylic polymer includes 29.5 to 79.5% by mass of acrylonitrile, 20 to 70% by mass of vinyl chloride and/or vinylidene chloride, and 0.5 to 5% by mass of a vinyl monomer comprising a sulfonic acid group. The acrylic fiber for artificial hair includes 0.3 to 2% by mass of a good solvent for the acrylic polymer and 0.1 to 5% by mass of a compound comprising an epoxy group.