Apparatus and associated methods relate to a hand-tied hair weft having at least two hair bundles fixed to three or more thread-like filaments that provide a cortex, where each two adjacent hair bundles are separated by one or more knots formed by the three or more thread-like filaments. In an illustrative example, the two adjacent hair bundles may be separated by, for example, at least two knots. The knots may include overhand knots. By introducing one or one or more knots, the width of the hand-tied hair weft may be customized without the weft shedding or unraveling.

A flexible hair extension includes an attachment assembly and a plurality of hairs. Each hair within the plurality of hairs is attached to the attachment assembly. The attachment assembly is flexible and can be easily deformed by hands into any geometric shape desired by the user. The attachment assembly retains the new form against gravity of the attachment assembly and the plurality of hairs. The new form can also be easily deformed by hands into another form. The attachment assembly can be a pair of wires twisted together with the plurality of hairs held between the pair of wires. The attachment assembly is adapted to be attached to the user's head using a pair of hair clips on two ends of the attachment assembly.

The invention can be used by persons that use tape-in style hair extensions. The invention includes a flat panel with several horizontal entry points aligned in rows. Both sides of the panel are utilized. A tape-in style hair extension is fed into the panel through a horizontal entry point from one side and comes through on the other side. The hair is then fastened by the clip/fastener on the opposite side just above the horizontal entry point. Vertically, each set of horizontal entry points, coupled with a clip/fastener on the opposite side, is also spaced apart leaving room for the user to have workspace for each individual hair extension. Once the hair extension is secured by the clip/fastener, the user can then remove the old tape-tab and prepare the tape-in style hair extension for reuse by adhering a new tape tab to each extension.

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.

Apparatus and associated methods relate to two or more hair wefts defined by respective filamentous cortices to which hair is secured, which cortices are secured together along their length by at least one binding filament, and to which cortices are coupled an elastic filament to form a hair extension configured such that the cortices and elastic filament are configured to circumscribe a wearer's head. In an illustrative example, a plurality of deformable beads may be disposed between the hair wefts and configured to releasably secure the hair extension to a wearer's natural hair. Each hair weft may, for example, have a plurality of individual hair bundles. Hair bundles may, for example, be separated by a predetermined cut point in the filamentous cortex. Various implementations may advantageously provide a visually undetectable, comfortable, and durable hair extension for a wearer.

A hair extension comprising plurality of bands having hair wefts secured thereto with micro loops adhered between the plurality of bands for attachment to the wearer's native hair. A first band has a front side and a back side and an extension weft is attached to either the front side or the backside, or both. micro links are attached with adhesive. A second band has a front side and a back side and may also have an extension weft attached to either the front side or the back side or both. Micro links are secure to either the back side of the first band or the back side of the second band, or both. The back sides of the two bands are sandwiched together with the micro links therebetween and with the extension hair exposed either exteriorly or interiorly. Also provided is a micro link wrapped with a material on which extension hair is secured. The wearer's native hair is pulled through an inner annulus of the micro link, thus concealing the micro link from view.

An artificial hair fastening tool is provided which enables efficient operations of putting a human hair into a loop of an artificial hair and making a knot in the human hair for preventing the artificial hair from coming off. An artificial hair fastening method for fastening an artificial hair to a human hair efficiently and without imposing strain on the human hair is also provided. The artificial hair fastening tool includes: a front end portion having a spindle shape with a groove on a circumferential surface along a longitudinal direction and having a tip end on one end; and a rear end portion having a rod-like shape and extending from the front end portion toward an opposite side to the tip end.

Problem

Provided is a practical hair extension configured to be very easily attached to head hair (natural hair) and attachment of which on the head hair is less likely to be noticed by other people.

Solution

A hair extension 1 includes a base member 2, a first hair bundle H.sub.1, a second hair bundle H.sub.2, a double-sided adhesive tape 3, and a release paper 4. The first hair bundle H.sub.1 is secured to a lower side of an inner surface of an approximately rectangular plate-shaped base member 2 in a state where hair ends are projected downward. The second hair bundle H.sub.2 is secured to an upper side of the inner surface of the base member 2 in a state where hair ends are projected upward, and the second hair bundle H.sub.2 is folded back at an upper end edge of the base member 2 having the hair ends drooped downward.

A hair bundle, including: at least one hair; and at least one linear core material that is bundled together with the hair. The core material is capable of maintaining a deformed state when deformed together with the hair.

Apparatus and associated methods relate to a hand-tied hair weft having at least two hair bundles fixed to three or more thread-like filaments that provide a cortex, where each two adjacent hair bundles are separated by one or more knots formed by the three or more thread-like filaments. In an illustrative example, the two adjacent hair bundles may be separated by, for example, at least two knots. The knots may include overhand knots. By introducing one or one or more knots, the width of the hand-tied hair weft may be customized without the weft shedding or unraveling.