Interfacing is a

textile Textile is an Hyponymy and hypernymy, umbrella term that includes various Fiber, fiber-based materials, including fibers, yarns, Staple (textiles)#Filament fiber, filaments, Thread (yarn), threads, different #Fabric, fabric types, etc. At f ...

used on the unseen or "wrong" side of

fabrics Textile is an umbrella term that includes various fiber-based materials, including fibers, yarns, filaments, threads, different fabric types, etc. At first, the word "textiles" only referred to woven fabrics. However, weaving is not the ...

to make an area of a garment more rigid. Interfacings can be used to: *stiffen or add body to fabric, such as the interfacing used in

shirt A shirt is a cloth garment for the upper body (from the neck to the waist). Originally an undergarment worn exclusively by men, it has become, in American English, a catch-all term for a broad variety of upper-body garments and undergarments. ...

collars *strengthen a certain area of the fabric, for instance where

buttonhole Buttonholes are reinforced holes in fabric that buttons pass through, allowing one piece of fabric to be secured to another. The raw edges of a buttonhole are usually finished with stitching. This may be done either by hand or by a sewing machin ...

s will be sewn *keep fabrics from stretching out of shape, particularly

knit Knitting is a method by which yarn is manipulated to create a textile, or fabric. It is used to create many types of garments. Knitting may be done by hand or by machine. Knitting creates stitches: loops of yarn in a row, either flat or i ...

fabrics Interfacings come in a variety of weights and stiffnesses to suit different purposes. They are also available in different colours, although typically interfacing is white. Generally, the heavier weight a fabric is, the heavier weight an interfacing it will use. Interfacing is sold at fabric stores by the yard or metre from bolts, similar to cutting fabric. Sewing patterns specify if interfacing is needed, the weight of interfacing that is required, and the amount. Some patterns use the same fabric as the garment to create an interfacing, as with sheer fabrics. Interfacing has three main 'types': woven, non-woven and knit. Each is designed to behave differently. Some interfacings are loosely-woven

muslin Muslin () is a cotton fabric of plain weave. It is made in a wide range of weights from delicate sheers to coarse sheeting. It gets its name from the city of Mosul, Iraq, where it was first manufactured. Muslin of uncommonly delicate hands ...

-type fabrics, often stiffened with a layer of chemical additive or

starch Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants for energy storage. Worldwide, it is the most common carbohydrate in human die ...

. A woven interfacing can match the grain of the fashion fabric, enabling it to retain a similar handle and drape. Non-woven interfacings are made from fibres that are bonded or felted together. Historically, hair canvas,

Wigan Wigan ( ) is a large town in Greater Manchester, England, on the River Douglas. The town is midway between the two cities of Manchester, to the south-east, and Liverpool, to the south-west. Bolton lies to the north-east and Warrington ...

and

Buckram Buckram is a stiff cotton (occasionally linen or horse hair) cloth with a loose weave, often muslin. The fabric is soaked in a sizing agent such as wheat-starch paste, glue (such as PVA glue), or pyroxylin (gelatinized nitrocellulose, dev ...

have been used for interfacing. Most are made from cotton or cotton-polyester blends. They tend to be very inexpensive.

Fusible interfacing

Most modern interfacings have heat-activated

adhesive Adhesive, also known as glue, cement, mucilage, or paste, is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation. The use of adhesives offers certain advant ...

on one side. They are affixed to a garment piece using heat and moderate pressure, from a hand iron for example. This type of interfacing is known as "fusible" interfacing. Non-fusible interfacings do not have adhesive and must be

sewn Sewing is the craft of fastening or attaching objects using stitches made with a sewing needle and thread. Sewing is one of the oldest of the textile arts, arising in the Paleolithic era. Before the invention of spinning yarn or weaving fabri ...

by hand or machine.

References

{{Sewing Notions (sewing) Sewing