Weft hair extension
Hair wefts are created either manually, or on special machines. During the process of manual weft creation, hairs are attached on a net by making knots. When hair wefts are created with special instruments, masters use melted keratin that absorbs into hair structure with the help of an ultrasound device. At that point hair strands are machine-sewn onto a 1.5 m long strip with threads. After that, ready hair wefts are cut to form tresses.
How the procedure of weft hair extension is done? A hair master divides the customer’s hair into segments and makes tight braids along her head. These braids are used to attach the whole hair extensions. The braids are fixed with tiny rubber bands.
The quantity of wefts defines the number of braids. The main advantage of weft is that it can be cut to fit the length of braid. When braids are finished, the master sews the weft hair to the braid using a special thread and curved needle. When sewing is done, the ends of hair extensions are secured by means of micro-beads.
Clip-on hair extension
Clip-on hair extensions are initially made of ready wefts by being formed into tresses. Such extension consists of hair attached to a little plastic or metal clasp with prongs by the means rivets or manual sewing. The quantity of clip-ions relies upon the length of the tress.
Before the procedure of hair extension, the clip-on extensions for hair are assembled and sorted by size and length. Hair is divided perpendicularly from the part down the customer’s ear. Clip-ons are utilised to hold the bits of hair on its place.
The extension is started from the back of the customer’s head: hair at the back of the head is separated off the bottom, and the rest is clipped up. If one clip-on is used, the master applies two wefts for the first section of hair. The space between the clips is about 2 inches.
Tape hair extension
Tape ins hair extensions are typically produced on factories: in this case, hair is applied on clingy polymer or silicone foundation with medicinal adhesive, and a slim removable defensive layer is laid afterward. The normal size of tapes is 1-1.5 inches (2.5-4 cm), but micro-tapes (1-1.5 cm) are also accessible.
When the tape hair expansions of necessary colour are chosen, the procedure of extension begins with dividing hair into segments. The master starts applying tapes on the lower part of the head gradually going up. The procedure of hair extension with tapes is very convenient and quick, and might take as low as 15 minutes.
How is it performed? A master removes the protective layer from the tape and sticks it on the hair at a distance of 1 cm (0.4 in) from the roots. After that, another tape is applied on the other side and pressed tightly. Thus, hair gets sandwiched between two single hair extensions.
Keratin hair extension
Keratin fused hair extensions remind of the tape-ins with one exception: the method of application is different. In this case, natural remy hair is preliminarily applied on the keratin foundation to form small wefts. During the process of so-called ‘hot fusion’, the master wraps those wefts around customer’s natural hair strands and uses a special heating instrument for keratin to melt into the client’s natural hair.
Although such type of hair extension is harmful for hair, keratin extensions last for 2-6 months and look naturally. Besides, fusion hair extensions can be used 2-3 times.
Alternatively, keratin hair extension can be done with micro-rings. This method of extension is called ‘cold fusion’ because no thermal impact is involved: instead, the master uses a special instrument to clamp the rings.