This presentation summarizes the key properties and production process of denim fabric. Denim is a durable warp-faced twill fabric typically made from dyed cotton warp and white weft yarns. The production process involves spinning, ball warping, rope dyeing to uniformly dye twisted yarn ropes, beaming the dyed yarns onto looms, sizing the yarns, and weaving using twill constructions like 3/1 right or left hand twill that give denim its characteristic look and feel. Rope dyeing is highlighted as a superior dyeing technology that achieves uniform dyeing.

1. Presentation on Denim fabric
Prepared by
Md kamrul Hasan Mehedi
ID-135051
Submitted to
Shamsuzzaman Sheikh
Assistant professor ,Department of Textile
Engineering
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2. Denim
Denim is popular worldwide for its fit, ease and durability.
Below are the some important properties of denim fabric:
Denim is very strong and durable.
Properties of denim fabric:
It is feeling hard during wearing.
It is warp-faced twill, the colored warp yarns
predominate on the face and the white weft yarns on
the back.
Usually the warp is colored and weft is white.
It is used for long time wearing.
It resists tears and snags.
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3. Flow Chart of Denim Production:
Spinning
↓
Ball Warping
↓
Rope Dyeing
↓
Long Chain Beaming
↓
Sizing
↓
Weaving
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4. Ball warping
Flow chart of Ball warping
Creel
↓
Tensioner
↓
Stop motion
↓
Vacuum reed
↓
Pot eye
↓
Broken end detector
↓
Lease stand
↓
Machine head
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5. Rope dyeing
Scouring
↓
Mercerizing
↓
dyeing
↓
washing
↓
Softener treatment
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6. Figure : Rope dyeing machine 6

7. Rope dyeing consists of twisting the yarns into a rope that is then
quickly dipped into indigo baths. This dyeing is considered a
superior dyeing technology where the dyeing uniformity
achieved is better than other Indigo Dyeing technologies like
Slasher Dyeing.
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8. LCB(Long chain beamer )
Object of LCB
To make a pre-beam from one dyed Rope
In pre-beam, Dyed yarns are wound in
suitable distance so that different counts
of yarn can be mixed during sizing
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9. Sizing
• Sizing can give protective flim of a yarn
In the rope denim sizing , various count yarn are
wounds in a weavers beam.
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10. Weaving
In denim weaving , following
constructions are mostly used
(1/1 Chambray )
(3/1 right hand twill )
3/1 left hand twill
3/1 broken twil
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11. Thanks all
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