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DYEING PROCEDURE
Contd... from Page 2
Fixation:
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Temperature |
Time |
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2
100oC
110oC
120oC
140oC |
6-8 minutes
4-5 minutes
3-4 minutes
1-1/2 to 2 minutes |
After treatment:
Optimize fastness properties, irrespective of any dyeing temperature, alkali or
dyestuff used, unfixed dyestuff must be washed out from the fiber.
This can be carried out on any suitable equipment such as jigger, winch or open
width soaper.
The material should rinsed in cold water, and should contain 2cc/l acetic acid.
This is followed by a rinse in hot water. And finally soaped in boiled with bath
containing 2g/l anionic soap followed by hot & cold rinse.
Printing:
VS dyes produce prints with excellent brightness as compared to any other. A
variety of shades are possible due colors available in all hues.
Two methods of direct printing of cellulose fibers :
(1) One phase printing (2) Two phase printing
One Phase Printing Method, the alkali is added to the printing paste
while in Two Phase Printing paste is made without alkali and the
prints are fixed by padding to dipping the printed fabric in an alkaline
fixation liquor.
The Prints can be fixed in various steaming conditions.
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One
phase printing |
Two
phase printing |
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Dyestuff
Urea
Boiling water
Thickening
Sodium Bicarbonate
Water |
X gms
40-100 gms
200 gms
500 gms
10-25 gms
Y gms |
X gms
20 gms
300 gms
500 gms
- gms
Y gms |
Contd. on Page 4
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The information and procedure provided here is in good
faith and to the best of our knowledge, but without liabilities.
© Magnum Corporation, Bhavnagar,
Gujarat - INDIA
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