Hair extensions

Abstract

The present disclosure is drawn to a hair weft, a system for applying a hair extension to subject, and a method of attaching a hair extension to a subject. In one example, the hair weft can comprise a first hair weft portion with a first weft band supporting a first plurality of extension hairs, and a second hair weft portion with a second weft band positioned in a doubled-up configuration against the first weft band. A plurality of intergap attachment regions can be positioned along the first weft band and the second weft band, adjoining the first weft band to the second weft band. The hair weft can further comprise a plurality of weft band gaps defined laterally by adjacent pairs of intergap attachment regions, and further defined radially by the first weft band and the second weft band.

What is claimed is: 
     
         1 . A hair weft, comprising:
 a first hair weft portion comprising a first weft band supporting a first plurality of extension hairs;   a second hair weft portion comprising a second weft band positioned in a doubled-up and aligned configuration against the first weft band;   a plurality of intergap attachment regions positioned along the first weft band and the second weft band, adjoining the first weft band to the second weft band; and   a plurality of weft band gaps defined laterally by adjacent pairs of intergap attachment regions, and further defined radially by the first weft band and the second weft band.   
     
     
         2 . The hair weft of  claim 1 , wherein at least one of the first weft band and the second weft band is a machine weft band. 
     
     
         3 . The hair weft of  claim 1 , wherein at least one of the first weft band and the second weft band is a skin weft. 
     
     
         4 . The hair weft of  claim 4 , wherein the skin weft comprises polyurethane. 
     
     
         5 . The hair weft of  claim 1 , wherein the first hair weft portion and the second hair weft portion is provided by a single hair weft that is folded to form the doubled-up and aligned configuration. 
     
     
         6 . The hair weft of  claim 5 , wherein the single hair weft has two ends that are attached together to form a weft band seam, and wherein the weft band seam is at a location other than at an end of the doubled-up and aligned hair weft. 
     
     
         7 . The hair weft of  claim 1 , wherein the first hair weft portion and the second hair weft portion comprise at least two separate hair wefts that are positioned together to form the doubled-up configuration. 
     
     
         8 . The hair weft of  claim 1 , further comprising a retaining structure along a top portion of hair weft, wherein the retaining structure is configured to prevent micro-link beads from passing through the weft band gaps. 
     
     
         9 . The hair weft of  claim 1 , wherein the intergap attachment regions are substantially perpendicular to the general direction of the first and second weft bands. 
     
     
         10 . The hair weft of  claim 1 , wherein the intergap attachment regions are acutely angled with respect to the general direction of the first and second weft bands. 
     
     
         11 . The hair weft of  claim 1 , wherein the intergap attachment regions are positioned periodically along the first weft band and the second weft band. 
     
     
         12 . The hair weft of  claim 1 , wherein the distance between adjacent intergap attachment regions is from ⅛ inch to ½ inch. 
     
     
         13 . The hair weft of  claim 1 , wherein second weft band supports a second plurality of extension hairs. 
     
     
         14 . A system for applying hair extension, comprising:
 the hair weft of  claim 1 ; and   a wire extension loop for pulling natural hair of a subject through the weft band gaps.   
     
     
         15 . The system of  claim 14 , further comprising micro-link beads for feeding the natural hair therethrough and holding the hair weft in place against a scalp of the subject. 
     
     
         16 . The system of  claim 15 , further comprising a crimping tool for crimping the micro-link beads onto the natural hair of the subject. 
     
     
         17 . A method of attaching hair extensions on a subject, comprising:
 obtaining a hair weft comprising a doubled-up weft band including a plurality weft band gaps between a first weft band and a second weft band;   feeding a portion of natural hair attached to a scalp of the subject through a weft band gap;   applying a micro-link bead to the portion of natural hair that was fed through the weft band gap; and   deforming the micro-link bead on the portion of natural hair and against the doubled-up weft band to secure the hair weft in place against the scalp.   
     
     
         18 . The method of  claim 17 , further comprising the steps of:
 feeding a second portion of natural hair attached to the scalp of the subject through a second weft band gap;   applying a second micro-link bead to the second portion of natural hair that was fed through the second weft band gap; and   deforming the second micro-link bead on the second portion of natural hair against the doubled-up weft band to further secure the hair weft in place against the scalp.   
     
     
         19 . The method of  claim 17 , wherein the hair weft has from 3 to 100 weft band gaps, and the method further includes feeding discrete portions of natural hair through at least most of the weft band gaps, applying a micro-link bead to each the discrete portions of natural hair, and deforming each micro-link bead against the doubled up weft band to further secure the hair weft in place against the scalp. 
     
     
         20 . The method of  claim 17 , wherein the hair weft comprises:
 a first hair weft portion comprising the first weft band supporting a first plurality of extension hairs;   a second hair weft portion comprising the second weft band positioned in a doubled-up configuration against the first weft band;   a plurality of intergap attachment regions positioned along and adjoining the first weft band and the second weft band, wherein adjacent intergap attachment regions define laterally the weft band gaps.   
     
     
         21 . The method of  claim 17 , wherein the step of feeding the portion of natural hair through the weft band gap is carried out using a wire extension loop. 
     
     
         22 . The method of  claim 21 , wherein the step of applying the micro-link bead to the portion of natural hair that was fed through the weft band gap is carried out by pulling the portion of natural hair through the micro-link bead with the wire extension loop. 
     
     
         23 . The method of  claim 17 , wherein the step of deforming the micro-link bead is carried out using a crimping tool. 
     
     
         24 . The method of  claim 17 , wherein after hair growth, further comprises the steps of:
 opening one or more deformed micro-link bead;   sliding the doubled-up weft band up against the scalp; and   re-deforming the micro-link bead on the portion of natural hair and against the doubled-up weft band to secure the hair weft in place against the scalp.   
     
     
         25 . A method of making hair weft, comprising:
 obtaining a first hair weft portion comprising a first weft band supporting a first plurality of extension hairs, and a second hair weft portion comprising a second weft band supporting a second plurality of extension hairs;   aligning the first weft band with the second weft band; and   attaching the first weft band to the second weft band at multiple locations to form a plurality of intergap attachment regions, while leaving a plurality of weft band gaps defined laterally by adjacent pairs of intergap attachment regions, and further defined radially by the first weft band and the second weft band.