Download - Sweater Dyeing With Pigments
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SWEATER DYEING WITH PIGMENTS
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SINKU PAUL-60
PRESENTED BYMD. SHAH MIRAN MUNSHI-54
MD. TANJIR HASIB SHOHAG-56
SHAH MEEM JAHAN-57
MD RASEL MAHMUD-58
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WHAT IS SWEATER DYEING?
TYPES OF SWEATER DYEING
REQUIRED MACHINE FOR SWEATER DYEING
DYESTUFF USED FOR SWEATER DYEING
PROCESS OF SWEATER DYEING
FINISHING & DESIGN
CONTENTS
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Introduction of Sweater Dyeing
Sweater Dyeing is the process of adding color to the fibers, yarns, and fabrics of a Sweater. This dyeing is normally done in a special solution containing dyes and particular chemical materials. After dyeing, dye molecules have uncut chemical bond with fiber molecules due to temperature & time.
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TYPES OF SWEATER DYEING
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TYPES OF SWEATER DYEING
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WHY PRETREATMENT IS NEEDED???
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RECIPE FOR PRETREATMENT
DETERGENT 0.5g/L
SODA ASH 2.0g/L
CAUSTIC SODA 3g/L
HYDROGEN PEROXIDE 3g/L
STABILIZER 1.5g/L
TEMPERATURE 90◦C
PROCESSING TIME 40MIN
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Load the sweaters
Load the water M:L=1:25
PROCESS OF SWEATER DYEING
Start M/cAdd Chemicals Supply Steam
1st Step: Pretreatment
Run 5minutes
Drop the liquor
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AFTER PRETREATMENT OF SWEATER
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PROCESS OF SWEATER DYEING2nd Step Again load water
Raise Temp. at 50◦C
Drop the liquor
Cleaning 5min
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PROCESS OF SWEATER DYEING3rd Step
Again Load the Water
Add Acetic Acid
Continue 5min
Drop the liquor
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PROCESS OF SWEATER DYEING
Again load water
Add enzyme+acetic acid Run the M/c Raise temp @50 degree
Continue 30min
Drop the liquor
4th Step M:L=1:10
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Again load water
PROCESS OF SWEATER DYEING5th Step
Washing 5 min
Drop the Liquor
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Again load water6th step
PROCESS OF SWEATER DYEING
Raise Temp. 60 degree
Continue 5min
Drop the liquor
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Again load water
Add cationic softener+Soda Ash
Continue 10 min
Raise temp 70 degree
Continue 10 min
Drop the liquor
7th stepPROCESS OF SWEATER DYEING
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PROCESS OF SWEATER DYEING8th step Again load water
M:L=1:25
Add 0.5% pigment
Continue 10min
Raise temp 70 degreeWithin 15 min
Continue 20min
Drop the liquor
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Dyeing Machinery
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Dyeing Machinery
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