Terry fabric is a knitted fabric with ring yarn or terry covering at one or both sides. It belongs to one of the fancy knitted fabrics. Terry fabric is characterized by soft touch, thick texture, excellent water absorption and heat retention. Terry fabric can be divided into single-sided and double-sided terry loop fabrics. The terry can form pattern effect on the knitting surface distributed according to some certain rules. Terry fabric after shearing or other process can be turned into fleece fabric or velvet fabric.
This PPT are used for textile engineering students, textile technology who takes textile testing courses. the PPt prepared from different books and NPTEL textile engineering web site.
Pile fabrics: Manufacturing methods include woven pile fabric formation & others methods such as knit pile fabric, tufted pile fabrics etc. A "Terry" or a "Terry Towel" as is generally known is a woven pile fabric formed by slack tension weave process. of weaving.
this presentation will give the basic information about the fibers & yarns that ultimately makes fabrics for this industry. It is helpful for beginners as well as established design professional by giving them exact nature of fabrics they are working over or is going to start a new level by different fabrics.
Terry fabric is a knitted fabric with ring yarn or terry covering at one or both sides. It belongs to one of the fancy knitted fabrics. Terry fabric is characterized by soft touch, thick texture, excellent water absorption and heat retention. Terry fabric can be divided into single-sided and double-sided terry loop fabrics. The terry can form pattern effect on the knitting surface distributed according to some certain rules. Terry fabric after shearing or other process can be turned into fleece fabric or velvet fabric.
This PPT are used for textile engineering students, textile technology who takes textile testing courses. the PPt prepared from different books and NPTEL textile engineering web site.
Pile fabrics: Manufacturing methods include woven pile fabric formation & others methods such as knit pile fabric, tufted pile fabrics etc. A "Terry" or a "Terry Towel" as is generally known is a woven pile fabric formed by slack tension weave process. of weaving.
this presentation will give the basic information about the fibers & yarns that ultimately makes fabrics for this industry. It is helpful for beginners as well as established design professional by giving them exact nature of fabrics they are working over or is going to start a new level by different fabrics.
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http://sandymillin.wordpress.com/iateflwebinar2024
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Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
5. Characteristics of Natural Fiber
Properties of Natural fiber
Absorbent
Comfortable
Cooler to Wear
Wrinkle more
Shrink when washed
Important Natural fiber are
Cotton
Jute
Linen
Wool
Silk
6. Cotton Fiber
Cotton is a cellulosic plant
fiber.
Found from bolls (seed pods)
growing on bushed.
Organic cotton can be called
as “Environmental friendly
Cotton” or “Green Cotton”.
Environmental Cotton can be
grown in a range of colors.
Main textile product of
India, Pakistan, Iran and many
other countries.
Made into a wide range of
wearing apparel.
7. Advantage
Comfortable
Absorbent
Good color retention
Dyes & prints well
Washable
Fairly strong
Drapes well
Easy to handle and sew
Low cost
Environmental friendly
Disadvantage
Shrinks in hot water
Wrinkles easily
Weakened by
perspiration and sun
Burns easily
Affected by mildew
Affected by chlorine
bleach.
8. End Use of Cotton Fiber
Summer season apparel such as t-shirt, polo shirt, shirt, trouser etc.
Household fabric such as bed sheet, pillow cover, curtain etc.
Medical textile produced from organic cotton.
9. Linen Fiber
Flax is fiber name and Linen is fabric
name.
Linen is the cellulosic bust fiber.
Collected from linseed plant.
World’s oldest textile fiber.
End Use
Bath towel, hand towel etc for good
moisture absorbency.
Household fabric.
Ladies & baby dress due to high
10. Advantage of Linen
Comfortable
Absorbent
Hand washable & dye
cleanable
Dyes & prints well
Resist dirt and stain
Withstand high heat
Drapes well
Easy to handle and sew
High luster
Environmental friendly
Disadvantage
Weak then cotton
Wrinkles easily
Shrinks
Expensive than cotton
Burns easily
Affected by mildew &
perspiration
Difficult to remove crease
11. Wool fiber
Protein fiber from sheep or lambs.
Worsted wool is higher quality with
longer fiber.
Natural insulator.
End Use
Men’s & women’s winter season
apparel.
Machine or hand knitted good such
fully fashion wear.
12. Advantage of Wool
Warm
Light weight
Wrinkle resistant
Absorbent
Dyes well
Comfortable
Durable
Crease resistant
Recyclable
Disadvantage
Affected by moths
Shrinks with heat and
moisture
Need special care, dry
cleaning
Scratchy on stain
Weakens when heat
Harmed by bleach or
perspiration
Absorbs orders
13. Silk Fiber
Silk is a natural animal fiber
collected from silkworm.
Only a natural filament fiber.
Filament is very fine, long and
continuous thread
End Use
Men, women and baby clothing.
Party dress.
Home furnishing cloth.
14. Advantage of Silk
Soft
Drapes well
High luster
Light weight
Resist soil, mildew and moth
Absorbent
Comfortable
Dyes and print well
Disadvantage
Expensive
Need special care, dry
cleaning
Stains with water
Yellows with age
Weakened by
perspiration, sun and
soap.
Affected by insects.
15. Coir Fiber
It is a natural fiber extruded from
coconut husk.
Products such as floor mats, door
brushed, mattresses'.
Technically coir is the fiber material
hard, internal shell and outer coat of
coconut.
Other uses of brown coir (made from
ripe coconut) are in upholstery padding,
sacking and horticulture.
16. Jute Fiber
Jute is a long, shiny vegetable
fiber that can be spun into coarse
and strong threads.
Bangladesh is the world’s
largest exporter of jute.
Jute fiber is hard.
Low thermal conductivity and
good moisture absorbency.
Cheap in market.
Jute fiber can be blended with
natural and synthetic fiber.
Crease resistant of jute is very
low and dape property is not
good.
17. Pina Fiber
Pina is the natural fiber made from
leaves of pineapple and is commonly
used in the Philippines.
It sometimes combined with silk or
polyester to create a textile fabric.
Soft, sheer and little stiff fabric can be
made from pina fiber.
19. Manufactured fiber
Manufactured fibers are created by a
manufacturing process of any substance
that is not a fiber.
Regenerated cellulosic: From
generated fibrous substance in plant.
Non cellulosic or synthetic- made
petrochemical products.
Process-
Raw materials melted or dissolved to
form thick syrup.
Liquid extruded through spinneret.
Extruded filaments stretched and
hardened into fibers.
20. Viscose Rayon
Regenerated cellulosic fiber.
1st manufactured by American viscose
company in 1894.
Derived from cotton linters, wood pulp
or vegetable matter.
End use
Use for make crepe, velvet and satin
fabric.
Produced highly lustrous fabric.
Men, woman and baby wear.
21. Advantage of
Viscose
Soft & comfortable
Drapes well
High luster
Light weight
Highly absorbent
No static electricity &
pilling problem
Low cost
Can be washed
Disadvantage
Wrinkles easily unless
treated
Heat sensitive
Susceptible to mildew
Stretches
Weakens when heat
Fabrics shrinks when
washed.
May be needed dry
cleaning.
22. Acetate Rayon
Developed in early 20th century.
Used in line coats and fabrics.
Threads used for embroidery.
Advantage
Luxurious
appearance.
Soft hand.
Dyes and print well
Drapes well
Resist shrinkage,
moth & mildew.
No pilling, little
static.
Disadvantage
Requires dry cleaning
Weak
Heat sensitive
Poor abrasion resistant
Dissolved by nail polish
remover (acetone)
23. Lyocell fiber
Lyocell is the newest manufactured
cellulosic fiber.
Trade name is Tencel.
Used to make reusable woven
material, fashion fabric, soft denim and
shirt.
Advantage
Absorbent
Biodegradable
Strong
Resist sunlight,
aging and abrasion
Disadvantage
Susceptible to
mildew.
Expensive
25. Polyester fiber
Polyester is a synthetic fiber
developed by DuPont in 1950.
Ethylene glycol and (T.P.A)
Teraphthelic acid is used to
produce this.
End Use
Household fabric.
Men and women
clothing.
Sports jersey.
Longer durability fabric.
26. Advantage of
Polyester
Strong
Crisp but soft hand
Resist stretching and
shrinkage
Washable or dry cleanable
Quick drying
Resists wrinkles
Abrasion resistant
Resistant to most chemical
Colorfast
Durable
Dyes well
Cheap
Disadvantage
Low absorbency
Static electricity
Pilling problem
No comfort
Toxic
27. Nylon fiber
Invented by DuPont in 1938.
1st synthetic fiber.
Made completely from
petrochemicals in an
experimental laboratory.
End Use
Household item.
Used widely as monofilament
and multifilament yarn.
Largely used as stockings,
tights etc.
28. Advantage of Nylon
Light weight
Exceptional strength
Abrasion resistant
Easy to wash
Resists shrinkage and
wrinkles
Fast drying, low
moisture absorbency
Can be dyed in a wide
range of colored
Resist damage from oil
and many chemicals
Insulating properties
Disadvantage
Low absorbency
Static electricity
Pilling problem
Heat sensitive
Poor resistant to
sunlight
29. Acrylic fiber
Invented by DuPont in 1950.
fiber composed of linear
macromolecules having in the
chain at 85% by mass of
acrylonatrile repeating units.
End Use
Originally used for blanket
and resembled wool.
Used for warm cloth.
30. Advantage of Acrylic
Light weight, soft, warm
wool like hand.
Dyed to bright color.
Machine washable, quick
drying
Resist shrinkage and
wrinkles
Wool like or cotton like
blended appearance
Excellent pleat retention
Resist moth, oils and
chemicals
Disadvantage
Low absorbency
Static electricity
Pilling problem
Heat sensitive
Dissolves by nail
polish remover
31. Spandex fiber
Invented by DuPont in 1959.
Stretches over 500% without breaking.
Commercial name is Lycra.
Highly used for making elastic product.
Light weight
Retains original shape
Abrasion resistant
Stronger than rubber
Soft, smooth and supple
Resists body oil and
perspiration
No static or pilling
Disadvantages
Whites yellow with
age
Heat sensitive
Harmed by chlorine
bleach
Non absorbent
Higher cost
Advantages
32. Kevlar & Nomex
High performance fiber
Used in special cases such as fire fighting cloth,
bullet proof cloth etc.
Advantages
Exceptional
strength
Exceptional heat
and flame resistant
Resistant to stretch
and abrasion
Disadvantages
Non absorbent
Higher cost
34. Yarn
Yarn is a continuous strand of
interlocking fiber together suitable for
the use of any textile such as weaving,
knitting, braiding, sewing thread,
embroidery etc.
38. Basic yarn
100% Wool
Wool has a rough surface and its cutting ends are so sharp.
Bulky and fluffy appearance.
Poor strength with good water absorbency.
Hairiness problem. Further causes pilling problem.
Higher price.
Low luster.
Good heat conductivity.
39. Basic yarn
100% Acrylic
Substitute of wool.
Smooth surface.
Low cost.
High strength with poor water absorbency.
Good heat conductivity.
High luster.
40. Basic yarn
Wool & Acrylic Blended
Moderate strength.
Comparatively lower cost than wool but higher than acrylic.
Good heat conductivity.
Moderate luster.
41. Basic yarn
100% Cotton
Smooth surface.
Moderate strength with higher comfort properties.
Lower luster but luster can be increased by mercerization process.
Two types of 100% cotton yarn. Carded & combed.
Combed is the finer and high quality yarn with less amount of hairiness.
Where as carded yarn comparatively lower quality with high amount of
hairiness.
Comparatively higher cost than synthetic yarn.
42. Basic yarn
Polyester Cotton blended
Blending of cotton and polyester together.
PC means polyester cotton where polyester percentage is higher than
cotton. CVC means chief value of cotton where cotton percentage is
higher than polyester.
65/35 PC means 65% polyester and 35% cotton where as 65/35 CVC
means 65% cotton and 35% polyester.
43. Basic yarn
Polyester Cotton blended
PC has higher strength than CVC. But CVC has higher comfort than PC.
TC means Tetron Cotton. TC is one kind of PC where polyester is higher
than cotton. But in case of TC, Tetron type of polyester needed to be
used where as any type of polyester (Dacron, Tetron, Pentron etc) can be
used.
44. Basic yarn
Melange Yarn
The yarn produced by combination of
at least two or more than two types of
different colored fiber mixed together.
The different fiber either may same
type or may different type.
45. Fancy or Decorative yarn
Chenille yarn
Chenille is made from cotton, silk or
viscose.
But silk or rayon is best.
The yarn is soft and thick and
contains protruding pile in its
surface.
46. Fancy or Decorative yarn
Loop yarn
It contains at least 3 ply.
The yarns contains loops in
severe palces.
47. Fancy or Decorative yarn
Cashmere yarn
A super luxery yarn.
Made from soft wool of cashmere
goat.
Soft and strong with smooth
surface.
Highly used in fully fashioning.
48. Fancy or Decorative yarn
Popcorn yarn
This yarns are soft and voluminous.
A larger version of raindrops
composed of 97% wool and 3%
nylon fiber.
49. Fancy or Decorative yarn
Angora yarn
Angora fibers are collected from
angora rabbit.
Wool types of fiber.
Yarns are ultra soft, fluffy, light
weight and warm.
50. Fancy or Decorative yarn
Filigree yarn
Lace type yarn.
Luxury appearance.
51. Fancy or Decorative yarn
Tape yarn
Tape yarns are wide and flat like
ribbon.
The yarn has high ratio of width to
thickness.
52. Fancy or Decorative yarn
Lurex yarn
Lurex is the metallic yarn.
The yarn which shiny surface and
appearance like various metal such
as gold, silver etc.
53. Fancy or Decorative yarn
Smiling yarn
Multi colored plied yarn.
Hairy yarns are used in the outer layer.
54. Fancy or Decorative yarn
Nep yarn
Nep is mixed during
the time of spinning.
Normally contrast
color nep is used.
56. Difference Between Woolen &
Worsted
Woolen yarns are spun from short & coarse fiber where as worsted yarns
are spun from long and finer fiber. Woolen yarns are uneven and it
contains more fuzzy fiber. Worsted yarns are even and it has no or little
fuzzy fiber.
57. Disadvantages of Wool
Wool fiber has rough surface
structure like as snake skin. For this
reason, it creates allergic problem
when wearing as a inner cloth.
On the other hand, wool fiber source
is limited with higher price. Special
care is needed for wool.
58. Acrylic- Substitute of Wool
Due to heat conductive wool is the unique choice for warm cloth.
But wool can not be used as inner cloth. Also it has higher price and
limited source.
Acrylic, a man made synthetic fiber which has heat conductive
properties as like wool.
But it surface is smooth. So that, it can not create allergic problem
during wearing.
On the other hand, wool fiber source is unlimited with low cost.
59. Yarn Count
Count is the relation between length and mass of yarn.
Count is a numerical value indicates the coarseness or fineness of yarn.
According to Textile Institute, “Count is the mathematical expression
indicates the mass per unit length or length per unit mass of yarn”.
60. Yarn Count
Types of Yarn Counting System
Direct System: Mass per unit length.
Indirect System: Length per unit mass.
61. Direct Count
Tex count: No. of grams per 1000 meters of yarn.
Denier count: No. of grams per 9000 meters of yarn.
Direct system of yarn count, yarn will be
coarser with the increasing of yarn count.
62. Indirect Count
English count : No. of hank of 840 yards per pound of yarn.
Woolen count (YSW): No. of hank of 256 yards per pound of yarn.
Worsted count: No. of hank of 560 yards per pound yarn.
Indirect system of yarn count, yarn will be
finer with the increasing of yarn count.
63. Chart of yarn count:
Count
type
Count Short
form
Length unit
(L’)
Weight unit
(W’)
Direct
count
Tex Nt 1000m 1 gm
Denier Nd 9000m 1 gm
Indirect
count
English/Cott
on
Ne 840 yards 1 lbs
Woolen
(YSW)
NeS 256 yards 1 lbs
Worsted NeK 560 yards 1 lbs
64. Measuring Formula for Yarn Count
Where,
L = Length of Yarn
L' = Length Unit
W = Weight of Yarn
W' = Weight Unit
68. woven fabric
M/C=weaving m/c or loom
Process=Weaving process-interlacing/interlacement
Only 2 sets of yarn are needed-
Warp yarn and weft yarn
69. Knitted fabric
M/C=Circular knitting m/c
Process=knitting process-intermeshing/interlooping
One or one set of yarn is needed