Interfacing is a

textile 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 t ...

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. I ...

collars *strengthen a certain area of the fabric, for instance where buttonholes will be sewn *keep fabrics from stretching out of shape, particularly knit 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 hand ...

-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 diets ...

. 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, Lancashire, 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 nor ...

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, d ...

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 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 by hand or machine.

References

{{Sewing Notions (sewing) Sewing