
Warp and weft in plain weaving
'Weft' or 'woof' is the
yarn which is shuttled back and forth across the
warp to create a
woven fabric. In
North America, it is sometimes referred to as the "'fill'" or the "filling yarn".
The weft is a thread or yarn of spun
fibre. The original fibre was
wool,
flax or
cotton. Nowadays, many
synthetic fibers are used in weaving. Because the weft does not have to be stretched in the way that the warp is, it can generally be less strong.
The weft is threaded through the warp using a
shuttle.
Hand looms were the original weaver's tool, with the shuttle being threaded through alternately raised warps by hand.
Inventions during the
18th century spurred the
Industrial Revolution, and the hand loom became the more robust
spinning frame with the
flying shuttle speeding up production of
cloth, and then the
water frame using
water power to automate the weaving process. The
power loom followed in the
19th century, when
steam power was harnessed.
In modern usage, ''weft'' is a hairdressing term for temporary hair extensions which are glued into a person's hair.
Etymology
The words ''woof'' and ''weft'' derive ultimately from the
Old English word ''wefan'', "to weave". It has given rise to the expression "woof and warp", meaning literally a fabric (the warp being the lengthwise threads, under and over which the side to side threads—the woof—are woven). The expression is used as a
metaphor for the underlying structure on which something is built.
Metaphorical use
The expression "woof and warp" (or "warp and woof") is sometimes used metaphorically as one might similarly use "fabric"; e.g., "the warp and woof of a student's life" = "the fabric of a student's life."
External links
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Glossary of hairdressing and hairstyling terminology