Primarily, nap is the raised (fuzzy) surface on certain kinds of

cloth 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 ...

, such as

velvet Weave details visible on a purple-colored velvet fabric Velvet is a type of woven tufted fabric in which the cut threads are evenly distributed, with a short pile, giving it a distinctive soft feel. By extension, the word ''velvety'' means ...

moleskin Moleskin is a heavy cotton fabric, woven and then shorn to create a short, soft pile on one side. The feel and appearance of its nap is suede-like, less plush than velour and more like felt or chamois. The word is also used for clothing made ...

. Nap can refer additionally to other surfaces that look like the surface of a napped cloth, such as the surface of a

felt Felt is a textile material that is produced by matting, condensing and pressing fibers together. Felt can be made of natural fibers such as wool or animal fur, or from synthetic fibers such as petroleum-based acrylic or acrylonitrile or w ...

beaver hat A beaver hat is a hat made from felted beaver fur. They were fashionable across much of Europe during the period 1550–1850 because the soft yet resilient material could be easily combed to make a variety of hat shapes (including the familiar top ...

. Starting around the 14th century, the word referred originally to the roughness of

woven Woven fabric is any textile formed by weaving. Woven fabrics are often created on a loom, and made of many threads woven on a warp and a weft. Technically, a woven fabric is any fabric made by interlacing two or more threads at right angles to ...

cloth before it was sheared."nap". ''The Oxford English Dictionary''. 2nd ed. 1989. When cloth, especially woollen cloth, is woven, the surface of the cloth is not smooth, and this roughness is the nap. Generally the cloth is then "sheared" to create an even surface, and the nap is thus removed. A person who trimmed the surface of cloth with shears to remove any excess nap was known as a shearman.

Piled nap

Since the 15th century, the term ''nap'' has generally referred to a special pile given to the cloth. The term ''pile'' refers to raised fibres that are there on purpose, rather than as a by-product of producing the cloth. In this case, the nap is woven into the cloth, often by weaving loops into the fabric, which can then be cut or left intact.

Carpet A carpet is a textile floor covering typically consisting of an upper layer of pile attached to a backing. The pile was traditionally made from wool, but since the 20th century synthetic fibers such as polypropylene, nylon, or polyester ...

s, rugs,

velour Velour, occasionally velours, is a plush, knitted fabric or textile similar to velvet or velveteen. It is usually made from cotton, but can also be made from synthetic materials such as polyester. Often, it contains a percentage of elastan ...

, and

velveteen Velveteen (or velveret) is a type of cloth made to imitate velvet, which is a type of pile fabric. Normally cotton, the term is sometimes applied to a mixture of silk Silk is a natural protein fiber, some forms of which can be woven ...

, are made by interlacing a secondary yarn through woven cloth, creating a nap or pile.

Raising the nap

In the finishing process of manufacturing textiles, after the cloth is woven, it goes through processes such as washing,

fulling Fulling, also known as felting, tucking or walking ( Scots: ''waukin'', hence often spelled waulking in Scottish English), is a step in woollen clothmaking which involves the cleansing of woven or knitted cloth (particularly wool) to elimin ...

, raising the nap and trimming the nap. After the nap is trimmed, the fabric is considered finished. The raising process, which draws out the ends of the fibres, is done on both

woollen Woolen (American English) or woollen ( Commonwealth English) is a type of yarn made from carded wool. Woolen yarn is soft, light, stretchy, and full of air. It is thus a good insulator, and makes a good knitting yarn. Woolen yarn is in contrast ...

and

cotton Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus ''Gossypium'' in the mallow family Malvaceae. The fiber is almost pure cellulose, and can contain minor pe ...

fabric.

Flannelette Flannel is a soft woven fabric, of various fineness. Flannel was originally made from carded wool or worsted yarn, but is now often made from either wool, cotton, or synthetic fiber. Flannel is commonly used to make tartan clothing, blankets, b ...

is a cotton fabric that goes through this process. There are ways to 'raise the nap', most of which involve wire brushes such as raising cards. Originally, dried teasel pods were used and were still preferred for use on woollen cloth for a long time."Teasel". ''The Oxford English Dictionary''. 2nd ed. 1989. Woollen fabrics, which must be damp when raising the nap, are then dried and stretched before the nap is trimmed or sheared. Cotton cloth goes straight to the shearing process, where the nap gets trimmed to ensure that all the raised fibres are the same length.

References

{{Authority control Textiles

Piled nap

Raising the nap

See also

References