it is help u to know about special yarn.and it's use and structure....

1. Welcome All Of You To Our
Presentation

2. Topic
Special Yarns

3. Group Members
NAME ID
Minhazul Hassan 132-23-3591
Md.Rakibul Islam 132-23-3568
Md.Kahhar Kabir 132-23-3592
Zarir Ahmad 132-23-3583
Shamim Reza 123-23-3241

4. Introduction
Fancy yarns are special products of spinning, twisting,
wrapping, texturing and knitting, etc. The demand for yarns
with structural or optical effects is due to the special
aesthetic and high decorative appeal to the woven, knitted
materials, and other textiles as well. Textile materials that
are produced using yarns with effects find applications in
normal and high fashion clothing.

5. Factors of Special Yarns
Components of fancy yarns can be of natural or manmade
fibers. Staple length or continuous filaments but nowadays it
appears the especially unusual structures of fancy yarns that
are very desirable in designing of new textiles. There are so
many different types of fancy yarns. Most of them are produced
using spinning or twisting machinery that are modified or
specially developed for this purpose. Some types of such yarns
are produced from “fancy fiber” or “fancy slivers”.

6. Use
Such yarns are also used for decorative textiles like,
 Curtains
 Carpets
 Ladies and children Outerwear
 Decor materials and textile fabrics in the corporate
sector, as for example in the trim of a car or textile
furnishing of a hotel lobby are becoming more and more
important.

7. Different types of Special/fancy
yarns
 Gimp Yarn
 Spiral or Corkscrew yarn
 Marl Yarn
 Covered Yarns
 Composite Yarns
 Chenille Yarn
 Chainette Yarn
 Ribbon Yarns
 Tape Yarn
 Fasciated Yarn
 Slub Yarn
 Knop Yarn

8. Marl Yarn
This is the simplest among the fancy yarns and is made
by twisting two different colored yarns by doubling
process. It is different from normal double yarn in the
sense of texture.

9. Use
These yarns are used make to good effect in discreet
pinstripes for men’s suiting’s or to produce a subtly and
irregularly patterned knitted fabric with a relatively simple
fabric construction. They may also be used to provide a
Lurex or other metallic yarn with strong support, while at
the same time creating a more subtle effect.

10. Spiral or Corkscrew yarn
A spiral or corkscrew yarn is a plied yarn that displays a
characteristic smooth spiraling of one component around
the other. In figure shows the basic structure, which is
straightforward, except in the differing lengths of the two
yarns involved, very similar to the structure of a marl
yarn.

11. Knops Yarn
 A knop yarn contains prominent bunches of one or more
of its component threads, at regular or irregular intervals
along the length.
 it is normally produced by using an apparatus that has two
pairs of roller.
 The knopping threads join the foundation threads below
the knopping bars.
 The insertion of twist collects the knopping threads
formed into a bunch or knop.

12. Slub Yarn
 Slubs are thick places in the yarn.
 the slub may be three or four times thickness of the base
yarn, and the increase in thickness may be achieved
within a short length of yarn.
 slub yarn are normally use for decorative purpose.

13. Fasciated Yarn
 A fasciated yarn is a staple fiber yarn that consists of a
core of a parallel fibers bound together by wrapper fibers.
 Yarns made under the airjet spinning method are of this
structure.
 In fasciated yarn the fibers are escaped and the dark
binding thread that contrast with one of the two slivers
used as feed-stock in making the yarn.

14. Tape Yarn
 Tape yarns may be produced using various processes;
braiding, warp knitting and weft knitting being among
them.
 It is also possible to use narrow woven ribbons, or narrow
tapes of non-woven material, or slit film, in the same way.
 In recent years, these materials have become better
known, especially in fashion knitwear.

15. Chainette Yarn
 The Chainette yarn is produced in miniature circular
weft knitting process
 Often using a filament yarn and a ring of between 6 and
20 needles.
 They have been seen in small quantities for many
years, and are being used extensively in fashion
knitwear.

16. Ribbon Yarns
These yarns are not produced by spinning.
 They are finely knitted tubes, pressed flat to resemble ribbon
or tape.
 The ribbons are usually soft, shiny and silky

17. Loop Yarn
A loop yarn has core with an effect yarn wrapped around
it and overfed so as to produce nearly circular projection
on its surface. Figure shows the structure of a loop yarn,
in this case somewhat simplified by showing the core as
two straight bars. In reality, the core, which for a loop
yarn always consists of two yarns twisted together,
which, can entrap the effect yarn.

18. Composite Yarns
This yarns also termed as compound yarns as well. It
consists of at least two threads, one forming the core of
the composite yarn, and the other strand forms the sheath
component. Out of the two threads one is staple fiber yarn
and other one is filament yarn. It is even in diameter,
smooth, and available in the same count range as spun
and filament yarns.