Partial stripping methods

[Tanvir Ahmed Chowdhury]

Partial stripping is obtained by treating the dyed fabric with dilute acetic acid or formic acid. The commanded conc. is betn 5 to 10 parts glacial aid or 2.5 –10 parts of formic acid per 1000 parts of water
Recipe: Glacial acetic acid = 5 – 10 parts
   Water   --> 1000 parts
   OR
   Formic acid   --> 2.5 to 10 parts
   Water   --> 1000 parts
   Temp   --> 70-100oC
   Time   --> Until the desired shade is obtained.
Process- The goods are entered and temp is raise to 70-100oC and the treatment is continued until the shade has been reduced to the desired amount thoroughly washing is then necessary to remove the products of hydrolysis.

[naser.te]

 

[Sharminte]

 

[mominur]

Thanks for sharing.........

[syful_islam]

Would you pl. explain shading.

[munira.ete]

Nice post.