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Fabrics:
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Just about anyone you can think of in the society is the ultimate consumer of
textiles. From wholesale textile manufacturers to the retail stores, from
automobile industry to the homemakers, dressmakers, and interior decorators,
and people in various other professions, knowledge of textiles is of major
importance. And before purchasing fabrics, people try to decide which kind
would be more durable and which fabric gives an impression of coolness. Methods
of caring for the fabric to ensure long life are also taken into consideration.
The economy, durability, serviceability, comfort,
aesthetic value, texture, design and color of the textile depends on the kind
of fiber being used, the way it is spun into yarn and finally weaved or
knitted into a color fabric to suit industrial or commercial purpose.
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Yarns to Fabrics - Weaving:
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To convert yarns to fabrics, the yarns are woven by interlacing of
threads or yarns into a bound system. Woven fabrics are usually composed of
lengthwise threads called warp, and shorter widthwise threads called weft. The
two are interwoven on device knows as a loom. The loom may be have been used as
early as the 5th Century BC.
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Types of Weaving
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In any type of weaving, four basic operations are carried out.
They are:
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Shedding:
Specific warp yarns are raised by means of the harness or heddle frame.
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Picking:
Yarns are filled through the shed by inserting.
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Beating Up:
Pushing filling yarns firmly in place by means of the reed.
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Taking and Letting off:
Winding the finished fabric on the cloth beam and releasing more of the warp
from the warp beam.
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Basic Weaves
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The three basic weaves are plain, twill and
satin.
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Plain:
Plain weave or tabby is the most common type and produces a uniform pattern of
warp and weft. This weave is used mainly for cotton fabrics and for fabrics to
be printed with designs.
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Twill:
Twill produces a weave in which the weft crosses over two warp yarns or a
non-uniform sequence, producing a longer weft weave and diagonal line pattern.
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Satin:
The weft is longer and the fabric produced is smooth-faced, without a strong
diagonal line.
Another method of weave is Gauze weave. The gauze weave
produces a fabric very light in weight and with an open-mesh effect. With this
weave, curtain materials, and some shirting and dress goods are woven. This
weave produces sheer materials.
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Yarns to Fabrics - Knitting
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"The process of forming open work fabric by tying yarns when they
cross one another, interlocking a series of loops is called Knitting"
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Knitted Fabrics:
These are made by interlocking of series of loops made from one or
more yarns, with each row of loops caught into the preceding row. Hand Knitting
probably originated from among the nomads of the Arabian Desert in about 1000
BC and spread from Egypt to Spain, France and Italy. By the later Middle ages,
knitting guilds were established in Paris and Florence. Heavily cabled and
knotted fabrics, embroidered with brightly colored patterns were produced by
Austria and Germany. Several Dutch knitters went to Denmark to teach Danish
women the Dutch skills. Later in 1589, with invention of the Knitting Machine,
the craft of hand knitting became less important. Of course, the production of
yarns for hand knitting has remained an important branch of the Textile
industry till the present day.
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Yarns to Fabrics - Lace Making
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Making fabrics by this method is very ancient. This technique
involves looping, knotting, braiding, twisting, or stitching thread into
decorative open-work patterns.
Handmade laces are very widely used as trimming for apparel like
jackets, skirts, skirt tops and decorative pieces at home like table mats, tea
coasters.
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Yarns to Fabrics - Net Making
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Fabric by net-making is made by open-mesh form of construction
which holds the fabric together by knots or fused thermoplastic yarns at each
point where the yarns cross one another.
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Yarns to Fabrics -
Braiding
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Braiding is a simple form of narrow fabrics construction. Strands
are plaited together by crisscrossing them diagonally and lengthwise, just as
Indian women are used to braiding their hair. Braid for making fabrics is
formed on a braiding machine by interlacing three or more strands of yarn so
that each strand passes over and under one or more of the others.
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Yarns to Fabrics - Felting
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In non-Woven fabric done by a process called felting, fibers are
interlocked or matted in a random fashion by applying heat, moisture or
mechanical action. They can be bonded by an adhesive also. Felt is useful for
making slippers, shoe insoles, earmuffs, and table padding.
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Finishing a Fabric
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Once it is ready, the fabric is subjected to chemical and
mechanical processes. This process is called finishing. The object of the
various finishing processes is to make the fabric from the loom or knitting
frame more acceptable to the customer. Finishing processes include bleaching,
removal of moisture, napping, shearing, pressing, brushing, polishing and to
improving its appearance and thus enhance its tactile qualities.
Other treatments include controlling shrinkage, adding permanent
pleating, shedding of wrinkles after washing, creating resistance to soiling
and static electricity. Some fabrics are treated to repel water, moths or other
harmful agents.
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Decating
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Decating is a process applied to a woolen and worsteds, man-made
and blended fiber fabrics, and various types of knits. It involves the
application of heat and pressure to set or to develop luster and softer hand
and to even the set and grain of certain fabrics. When applied to double knits
it imparts crisp hand and reduces shrinkage. In wet decating, which gives a
subtle luster, or bloom, fabric under tension is steamed by passing it over
perforated cylinders.
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Tentering, Crabbing and heat setting
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These are the final processes applied to set the warp and weft of
woven fabrics at right angles to each other and to stretch and set the fabric
to its final dimensions. Tentering stretches width under tension by the use of
a tenter frame, consisting of chains fitted with pins or clips to hold the
selvages of the fabric, and traveling on tracks. As the fabric passes through
the heated chamber, creases and wrinkles are removed, the weave is
straightened, and the fabric is dried to its final size. when the process is
applied to wet tools it is called crabbing; when applied to synthetic fibers it
is sometimes called heat- setting, a term also applied to the permanent setting
of pleats, creases and special surface effects.
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Softening
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Making fabrics softer and sometimes also increasing absorbency
involves the addition of such agents as dextrin, glycerin, sulfonated oils and
sulfated alcohols and sulfated tallow.
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Maintenance of Fabrics
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Merely making a proper selection of fabric or textile product is
just not enough, but proper care is essential to ensure its durability and
satisfaction. Adequate care should be taken in the following forms.
1. Brushing and Airing should be done
2. Clean Storage when not in use
3. "Stitch in time saves nine" that means immediate mending when
damaged
4. Frequent and right method of laundering depending on the type of
fabric.
5. Before washing, ensure that the stains are removed Stain removers
6. Ironing is necessary too.
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Brushing and Airing:
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If a popular fabric does not require frequent dry cleaning or
washing, it could be kept bright and attractive by regularly brushing it. Thus
the new look could be retained. Brushes with soft and firm bristles should be
used. Once brushed, they should be aired properly, in the open or at least hang
them outside in a well-aired room.
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Clean storage:
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Clothes should be stored in dust proof cupboards or containers.
Moth Preventives should be put. Ensure that clothes are stored only after
proper brushing or airing as accumulated dust spoils the garments in due course
of time.
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Stain Remover:
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Different Fabrics and different stains require different stain
removers. It is necessary that stains be removed before they get set on the
fabric. Never hurry to use stain removers as incorrect remover may cause
irreparable damage to the fabric.
To remove stains caused by acid or alkali solutions use Limejuice,
Vinegar or a dilute solution of acetic acid after rinsing the garment
thoroughly.
Fabrics of fibers like Polyester, Acrylic etc., which are not very
absorbent do not easily stain and so stains on such clothes could be removed by
washing it with a mild soap solution or by wiping the stain with a damp cloth.
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Bleaching Agents:
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Only cottons, Linens and rayons should household bleaches be used
and never or silk or wool. Sodium-perborate is very effective and harmless for
white woolens. For stains caused by iron or metal rust, ink, iodine, fruit
juice, use one teaspoon of sodium hydro sulphate in a glass of water as a
bleaching agent.
A mild bleach like Hydrogen Peroxide could be used on all kinds of
Fabrics. Turpentine or alcohol could be used to remove greasy stains, which are
very effective and do not discoloration of fabric.
Sprinkle talcum powder or powdered chalk over fresh grease spot or
oil stains and leave it for a while. The sprinkled powder absorbs the grease.
Now brush of the powder to remove the stain.
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Consumer Care Guide for Apparel: Tips For Apparel Care When the label reads
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Ø Machine
It means washable on machine. Wash, bleach, dry, and press by any customary
method including commercial laundering and dry cleaning;
Ø Home
Launder Only
Same as above but do not use commercial laundering;
Ø No
Chlorine Bleach
Do not use chlorine bleach. Oxygen bleach may be used;
Ø Cold
Rinse
Use cold water form tap or cold washing machine setting;
Ø Warm
Rinse
Use warm water or warm washing machine setting;
Ø Hot
Wash
Use hot water or hot washing machine setting;
Ø No
Spin
Remove wash load before final machine spin cycle;
Ø Delicate
Cycle Or Gentle Cycle
Use appropriate machine setting otherwise, wash by hand;
Ø Durable
Press Cycle Or Permanent Press Cycle
Use appropriate machine setting; otherwise, use warm wash, cold rinse, and
short spin cycle;
Ø Wash
Separately
Wash alone or with like colors;
Ø Non-Machine
Washable - Hand Wash
Launder only by hand in lukewarm (hand comfortable) water. May be bleached. May
be dry-cleaned;
Ø Hand
Wash Only
Same as above, but do not dry-clean;
Ø Hand
Wash Separately
Hand wash alone or with like colors;
Ø No
Bleach
Do not use bleach;
Ø Damp
Wipe
Surface clean with damp cloth or sponge;
Ø Home
Drying Tumble Dry
Dry in tumble dryer at specified setting--high, medium, low, or no heat;
Ø Warm
Iron
Set iron medium setting;
Ø Hot
iron
Set iron at hot setting;
Ø Do
Not Iron
Do not iron or press with heat;
Ø Steam Iron
Iron or press with steam;
Ø Iron
Damp
Dampen garment before ironing.
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