Types of Woven Fabrics
Woven fabrics are classified as to weave or
structure according to the manner in which warp and weft cross each other. The
three fundamental weaves, of which others are variations, are the plain, twill,
and satin. In plain weave, also known as calico, tabby, taffeta, or homespun
weaves, the weft passes over alternate warp threads, requiring two harnesses
only. The relatively simple construction suits it to cheap fabrics, heavy
yarns, and printed designs. Variations are produced by the use of groups of yarns,
as in basket weave and monk's cloth, or by alternating fine and coarse yarns to
make ribbed and corded fabrics, as the warp-ribbed Bedford cord, piqué, and
dimity and the weft-ribbed poplin, rep, and grosgrain. The second primary
weave, twill, shows a diagonal design made by causing weft threads to interlace
two to four warp threads, moving a step to right or left on each pick and
capable of variations, such as herringbone and corkscrew designs. Noted for
their firm, close weave, twill fabrics include gabardine, serge, drill, and
denim. Satin weave has floating or overshot warp threads on the surface which
reflect light, giving a characteristic luster. When the uncrossed threads are
in the weft, the weave is called sateen.
Pile fabrics have an additional set of yarns
drawn over wires to form loops, and may be cut or uncut. Warp-pile fabrics
include terry and plush; weft-pile, velveteen and corduroy. In double-cloth
weave two cloths are woven at once, each with its warp and filling threads, and
combined by interlacing some yarns or by adding a fifth set. The cloth may be
made for extra warmth or strength, to permit use of a cheaper back, or to
produce a different pattern or weave on each surface, e.g., steamer rugs, heavy
overcoating, and machine belting. Velvet is commonly woven as a double cloth.
In swivel weaving, extra shuttles with a circular motion insert filling yarns
to form simple decorations, such as the dots on swiss muslin. Figure weaves are
made by causing warp and weft to intersect in varied groups. Simple geometric
designs may be woven on machine looms by using a cam or a dobby attachment to
operate the harnesses. For curves and large figures each heddle must be
separately governed. The Jacquard loom attachment permits machine weaving of
the most complicated designs.
Warp and weft in plain weaving
Weaving is a textile craft in
which two distinct sets of yarns or threads are interlaced to form a fabric or cloth. The threads which run
lengthways are called the warp and the threads which
run across from side to side are the weft or filling.
Cloth is usually woven on a loom, a device that holds
the warp threads in place while filling threads are woven through them. Weft
is an old English word meaning "that
which is woven".[1] A fabric band which
meets this definition of cloth (warp threads with a weft thread winding
between) can also be made using other methods, inclluding tablet weaving, backstrap, or other
techniques without looms.
The way the warp and filling threads interlace
with each other is called the weave. The majority of woven products are created
with one of three basic weaves: plain weave, satin weave, or twill. Woven cloth can be plain (in one colour or a simple pattern), or
can be woven in decorative or artistic designs, including tapestries. Fabric in which the
warp and/or weft is tie-dyed before weaving is
called ikat.
Though traditional handweaving and spinning remain popular crafts,
nowadays the majority of commercial fabrics in the West are woven
on computer-controlled Jacquard looms. In the past, simpler
fabrics were woven on dobby looms,
while the Jacquard harness adaptation was reserved for more complex patterns.
Some believe the efficiency of the Jacquard loom, with its Jacquard weaving process, makes it more
economical for mills to use them to weave all of their fabrics, regardless of
the complexity of the design.
Process and terminology
An Indian weaver preparing his warp
A woman weaving with a manual loom
In general, weaving involves the interlacing of
two sets of threads at right angles to each other: the warp and the weft (older woof). The warp threads are held taut and in parallel order, typically by
means of a loom, though some forms of weaving may use other methods. The loom
is warped (or dressed) with the warp threads passing through heddles on two or more
harnesses. The warp threads are moved up or down by the harnesses creating a
space called the shed. The weft thread is
wound onto spools called bobbins. The bobbins are placed
in a shuttle that carries the weft
thread through the shed.
The raising and lowering sequence of warp
threads in various sequences gives rise to many possible weave structures:
- plain weave,
- twill weave,
- satin weave, and
- complex
computer-generated interlacings.
Both warp and weft can be visible in the final
product. By spacing the warp more closely, it can completely cover the weft
that binds it, giving a warp faced textile such as rep weave.
Conversely, if the warp is spread out, the weft can slide down and completely
cover the warp, giving a weft faced textile, such as a tapestry or a Kilim rug. There are a variety of loom styles for hand weaving
and tapestry. In tapestry, the image is created by placing various colors of weft only in certain warp areas, rather than across the entire warp
width.
Ancient and traditional
cultures
Prehistoric woven objects and weaving tools
Weaving in ancient Egypt
Women weaving. Detail from an Ancient Greek Attic black-figure epinetron, ca. 500 BC, from
Athens. Louvre Museum, Paris.
There are some indications that weaving was
already known in the Palaeolithic
era. An indistinct textile impression has been found at Pavlov, Moravia. Neolithic textiles are well known
from finds in pile dwellings in
Switzerland. One extant fragment from the Neolithic was found in Fayum, at a site dated to
about 5000 BCE. This fragment is woven at about 12 threads by 9 threads per cm
in a plain weave. Flax was the predominant
fibre in Egypt at this time and continued popularity in the Nile
Valley, even after wool became the primary fibre used
in other cultures around 2000 BCE. Another Ancient Egyptian item, known as the
Badari dish, depicts a textile workshop. This item, catalogue number UC9547, is
now housed at the Petrie Museum
and dates to about 3600 BCE. Enslaved women worked as weavers during the Sumerian
Era. They washed wool fibers in hot water and wood-ash
soap and then dried them. Next, they beat out the
dirt and carded the wool. The wool was
then graded, bleached, and spun into a
thread. The spinners pulled out fibers and twisted them together. This was done
either by rolling fibers between palms or using a hooked stick. The thread was
then placed on a wooden or bone spindle and rotated on a clay whorl, which operated like a flywheel.
The slaves then worked in three-woman teams on looms, where they stretched
the threads, after which they passed threads over and under each other at
perpendicular angles. The finished cloth was then taken to a fuller.
Easton's Bible Dictionary (1897)
refers to numerous Biblical references to weaving in ancient times:
Weaving was an art practised in very early times
(Ex 35:35). The Egyptians were specially skilled in it (Isa 19:9; Ezek 27:7), and some have regarded them as its inventors.
In the wilderness, the Hebrews practised weaving (Ex 26:1, 26:8; 28:4, 28:39; Lev 13:47). It is referred to subsequently as specially the women's work (2 Kings 23:7; Prov 31:13, 24). No mention of the loom is found in Scripture, but we read of the "shuttle" (Job 7:6), "the pin" of the beam (Judg 16:14), "the web" (13, 14), and "the beam" (1 Sam 17:7; 2 Sam 21:19). The rendering, "with pining sickness," in Isa. 38:12 (A.V.) should be, as in the Revised Version, "from the loom," or, as in the margin, "from the thrum." We read also of the "warp" and "woof" (Lev. 13:48, 49, 51–53, 58, 59), but the Revised Version margin has, instead of "warp," "woven or knitted stuff."
In the wilderness, the Hebrews practised weaving (Ex 26:1, 26:8; 28:4, 28:39; Lev 13:47). It is referred to subsequently as specially the women's work (2 Kings 23:7; Prov 31:13, 24). No mention of the loom is found in Scripture, but we read of the "shuttle" (Job 7:6), "the pin" of the beam (Judg 16:14), "the web" (13, 14), and "the beam" (1 Sam 17:7; 2 Sam 21:19). The rendering, "with pining sickness," in Isa. 38:12 (A.V.) should be, as in the Revised Version, "from the loom," or, as in the margin, "from the thrum." We read also of the "warp" and "woof" (Lev. 13:48, 49, 51–53, 58, 59), but the Revised Version margin has, instead of "warp," "woven or knitted stuff."
American Southwest
Weaving a traditional Navajo rug
Textile weaving, using cotton dyed with pigments, was
a dominant craft among pre-contact tribes of the American southwest, including
various Pueblo peoples, the Zuni, and the Ute tribes. The first
Spaniards to visit the region wrote about seeing Navajo blankets. With the introduction
of Navajo-Churro sheep, the resulting woolen products have become very well known. By
the 18th century the Navajo had begun to import yarn with their favorite color, Bayeta red. Using an
upright loom, the Navajos wove blankets worn as garments and then rugs after
the 1880s for trade. Navajo traded for commercial wool, such as Germantown,
imported from Pennsylvania. Under the influence of European-American settlers
at trading posts, Navajos created new and distinct styles, including "Two
Gray Hills" (predominantly black and white, with traditional patterns),
"Teec Nos Pos" (colorful, with very extensive patterns), "Ganado"
(founded by Don Lorenzo Hubbell), red dominated patterns with black and white,
"Crystal" (founded by J. B. Moore), Oriental and Persian styles (almost always
with natural dyes), "Wide Ruins," "Chinlee," banded
geometric patterns, "Klagetoh," diamond type patterns, "Red Mesa" and bold diamond patterns. Many of these patterns exhibit a
fourfold symmetry, which is thought to embody traditional ideas about harmony,
or hózhó.
Amazonia
In Native Amazonia, densely woven palm-bast mosquito netting, or tents, were utilized by
the Panoans, Tupí, Western Tucano, Yameo, Záparoans, and
perhaps by the indigenous peoples of the central Huallaga River basin (Steward
1963:520). Aguaje palm-bast (Mauritia flexuosa, Mauritia minor, or swamp palm)
and the frond spears of the Chambira palm (Astrocaryum chambira, A.munbaca, A.tucuma, also
known as Cumare or Tucum) have been used for centuries by the Urarina of the Peruvian Amazon to make cordage,
net-bags hammocks, and to weave fabric. Among the Urarina, the production of
woven palm-fiber goods is imbued with varying degrees of an aesthetic attitude,
which draws its authentication from referencing the Urarina’s primordial past.
Urarina mythology attests to the centrality of weaving and its role in
engendering Urarina society. The post-diluvial creation myth accords women’s weaving
knowledge a pivotal role in Urarina social reproduction.[2] Even though palm-fiber
cloth is regularly removed from circulation through mortuary rites, Urarina
palm-fiber wealth is neither completely inalienable, nor fungible since it is a
fundamental medium for the expression of labor and exchange. The circulation of
palm-fiber wealth stabilizes a host of social relationships, ranging from
marriage and fictive kinship (compadrazco,
spiritual compeership) to perpetuating relationships with the deceased.[3]
Islamic world
Girls weaving a Persian rug, Hamadan, circa 1922. Note the
design templates (called 'cartoons') at top of loom.
Hand weaving of Persian carpets and kilims has been an important element of the tribal crafts of many of the
subregions of modern day Iran. Examples of carpet
types are the Lavar Kerman carpet from Kerman and the Seraband rug from Arak.
An important innovation in weaving that was
developed in the Muslim world
during the Islamic Golden Age was the introduction of foot pedals to operate a loom. The first such devices
appeared in Syria, Iran and Islamic parts of East Africa,
where "the operator sat with his feet in a pit below a fairly low-slung
loom." By 1177, it was further developed in Al-Andalus, where having the
mechanism was "raised higher above the ground on a more substantial
frame." This type of loom spread to the Christian parts of Spain and soon
became popular all over medieval Europe.[4][not in citation given]
Europe
Dark Age and Medieval
Europe
Weighted-warp looms were commonplace in Europe
until the development of more advanced looms around the 10th–11th centuries.
Especially in colder climates, where a large floor loom would take up too much
valuable floor space, the more primitive looms remained in use until the 20th
Century to produce "homespun" cloth for individual family needs. The
primary material woven in most of Europe was wool, though linen was also common, and imported silk thread was occasionally made
into cloth. Both men and women were weavers, though the task often fell to the
wife of a farming household. Fabric width was limited to the reach of the
weaver, but was sufficient for the tunic-style garments worn in much of Europe at the time. A plain weave
or twill was common, since professional weavers with skills to produce better
fabrics were rare.
Weaving was a strictly local enterprise until
later in the period, when larger weaving operations sprung up in places like Brugges, in Flanders. Within this setting,
master weavers could improve their craft and pass skills along to apprentices.
As the Middle Ages progressed, significant trade in fine cloth developed, and
loom technology improved to allow very thin threads to be woven. Weaver's
guilds (and associated craft guilds, like fullers) gained significant
political and economic power in some of the bigger weaving cities.
In the medieval period, weaving was considered
part of the set of seven mechanical arts.
Colonial America
Colonial America was heavily reliant on Great Britain for manufactured goods
of all kinds. British policy was to encourage the production of raw materials
in colonies. Weaving was not prohibited, but the export of British wool was. As a result many people wove cloth from locally produced
fibers in Colonial America.
In Colonial times the colonists mostly used
wool, cotton and flax (linen) for weaving, though hemp fiber could be made into serviceable canvas and heavy cloth also.
They could get one cotton crop each fall, but until the invention of the cotton gin it was a
labor-intensive process to separate the seeds from the cotton fiber. It
generally took an entire year to produce cloth from raw materials, including
processing, spinning, an weaving. Flax and hemp were harvested in the summer,
and the stalks rendered for the long fibers within. Wool could be sheared up to
twice yearly, depending on the breed of sheep. The relative ease of processing
wool, and its durability, meant that a great proportion of weaving was wool
cloth.
A plain weave was preferred in Colonial times,
and the added skill and time required to make more complex weaves kept them
from common use in the average household. Sometimes designs were woven into the
fabric but most were added after weaving using wood block prints or embroidery.
Leter, the use of multi-harness looms enabled color or texture patterns to be
directly woven into the fabric.
Industrial Revolution
Main article: Textile manufacture during the Industrial
Revolution
Before the Industrial Revolution, weaving was a manual
craft, usually undertaken part-time by family craftspeople. Looms might be
broad or narrow; broad looms were those too wide for the weaver to pass the
shuttle through the shed, so that the weaver needed an assistant (often an apprentice). This ceased to be
necessary after John Kay invented the flying shuttle in 1733, which also
sped up the process of weaving.
Great Britain
Edmund Cartwright was the first to attempt to mechanise weaving from 1785. He built
a factory at Doncaster
and obtained a series of patents between 1785 and 1792. In 1788, his brother
Major John Cartwight
built Revolution Mill at Retford (named for the
centenary of the Glorious Revolution. In 1791, he licensed
his loom to the Grimshaw brothers of Manchester, but their Knott Mill
burnt down the following year (possibly a case of arson). Edmund Cartwight was
granted a reward of £10,000 by Parliament for his efforts in
1809.[5] However, success in
power-weaving also required improvements by others, including H. Horrocks of Stockport. Only during the two
decades after about 1805, did power-weaving take hold. Textile
manufacture was one of the leading sectors in the British Industrial Revolution, but weaving was a
comparatively late sector to be mechanised. The loom became semi-automatic in
1842 with Kenworthy and Bulloughs Lancashire Loom. The various
innovations took weaving from a home-based artisan activity (labour
intensive and man-powered) to steam driven factories process. A large metal
manufacturing industry grew to produce the looms, firms such as Howard & Bullough of Accrington, and Tweedales and Smalley and Platt Brothers. Most cotton weaving
took place in weaving sheds, in small towns circling Greater Manchester and worsted weaving in West Yorkshire – men and women with
weaving skills emigrated, and took the knowledge to their new homes in New
England, in places like Pawtucket and Lowell.
The invention in France of the Jacquard loom in about 1803, enabled
complicated patterned cloths to be woven, by using punched cards to determine
which threads of coloured yarn should appear on the upper side of the cloth.
America, 1800–1900
The Jacquard loom attachment was
perfected in 1801, and was becoming common in Europe by 1806. It came to the US
in the early 1820s, some immigrant weavers bringing jacquard equipment with
them, and spread west from New England. At first it was used with traditional
human-powered looms. As a practical matter, previous looms were mostly limited
to the production of simple geometric patterns. The jacquard allowed individual
control of each warp thread, row by row without repeating, so very complex
patterns were suddenly feasible. woven coverlets (bedspreads) became
popular by mid-century, in some cases being custom-woven with the name of the
customer embedded in the programmed pattern. Undyed cotton warp was usually
combined with dyed wool weft.
Natural dyes
were used until just before the American Civil War, when synthetic dyes
began to come into use.
Weaving can also refer to a person such as weave
hair styles. Weaving or the term "weaver" can also refer to ones last
name.
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