Thrumming is a technique in which small pieces of
wool
Wool is the textile fibre obtained from sheep and other mammals, especially goats, rabbits, and camelids. The term may also refer to inorganic materials, such as mineral wool and glass wool, that have properties similar to animal wool.
...
or
yarn
Yarn is a long continuous length of interlocked fibres, used in sewing, crocheting, knitting, weaving, embroidery, ropemaking, and the production of textiles. Thread is a type of yarn intended for sewing by hand or machine. Modern manufac ...
(thrums) are pulled through fabric to create a wooly layer. The term ''thrum'' originally referred specifically to worthless pieces of
warp
Warp, warped or warping may refer to:
Arts and entertainment Books and comics
* WaRP Graphics, an alternative comics publisher
* ''Warp'' (First Comics), comic book series published by First Comics based on the play ''Warp!''
* Warp (comics), a ...
thread which remained after weaving a piece of fabric using a
loom, though its meaning has since broadened to include any small pieces of wool or thread which are used in a similar way.
Applications
Thrum caps

A thrum cap (or thrummed cap) consisted of a canvas base in the shape of an inverted flower pot, with woolen thrums pushed through to create a shaggy exterior. Such caps were worn by sailors in the
Tudor period
The Tudor period occurred between 1485 and 1603 in England and Wales and includes the Elizabethan period during the reign of Elizabeth I until 1603. The Tudor period coincides with the dynasty of the House of Tudor in England that began with t ...
, and were commonly dyed blue or brown.
They continued to be in use into the seventeenth century.
Stuffed mittens

Stuffed mittens (also known in
Newfoundland and Labrador
Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...
, where they are traditionally made, as "thrummed mittens") are thrummed with tufts of fleece to create a warm, fluffy interior which gradually
felts with use. The same technique may also be applied to line winter caps and other knitted articles.
The writer Robin Orm Hansen published a pattern for stuffed mittens in her 1983 pattern book ''Fox and Geese and Fences''. According to Hansen, the technique was largely unknown at the time, being limited to Newfoundland and Labrador and a single family in Maine. It has since become more widely known and practiced.
Rugs
Historically, sailors created mats by pulling thrums through a stiff woven base of burlap or rope. These "thrum mats" were used to prevent the ropes of a ship's
rigging
Rigging comprises the system of ropes, cables and chains, which support a sailing ship or sail boat's masts—''standing rigging'', including shrouds and stays—and which adjust the position of the vessel's sails and spars to which they ar ...
from chafing. The writer
William Winthrop Kent has conjectured that these mats were a precursor to the technique of
rug hooking
Rug hooking is both an art and a craft where rugs are made by pulling loops of yarn or fabric through a stiff woven base such as burlap, linen, or rug warp. The loops are pulled through the backing material by using a crochet-type hook mounted i ...
.
References
{{commons category, Thrumming
Textile techniques