Comparison

Conventional
Processes

Disadvantages

Bio-remedies

Advantages

Acid desizing

• Hydo-cellulose formation takes place.
• Tremendous loss in strength

Alpha amylase

• Only hydrolyse starch.
• High desizing efficiency
• No strength loss

Fading -using
Pumice stone

• Loss of strength of the fabric
• Yarn structure in fabric detoriates
• Accumulation of large amounts of sludge together with fibre residues and indigo pigments which had to be disposed.
• Unloading the machine after stone treatment is very difficult because stones and their split off remainders were all over and had to be removed from the trousers.
• Pumice stones are a natural raw material and their occurrence is limited.
• Fading efficiency absolutely dependent on hardness and size of the stone.

Cellulase Enzymes

• Specific in action
• No chances of damaging Yarn structure in fabric.
• No high abrasion strength loss
• Saves water
• Saves time
• Process flexibility
• No damage to fabric

Bleaching
(Oxidative and
reductive)

• AOX Problem
• Yellowing
• Strength Loss

Lacasse/
Peroxidases

• Less strength loss compared to peroxide treatment.
• No residual peroxide.
• No use of stabilizer.

Scouring

• Hazardous as high BOD,
• COD, TDS levels
• Rinsing Cost (Labour/ water/corrosion)
• High effluent treatment
• Alters morphology of cotton fibre.
• Strong neutralization required.
• Higher weight loss

Bio Scouring
Concept

• Milder Process
• Less Environmental
• Impact in terms of TDS, BOD & COD
• Saves Energy, water
• Eliminates core alkali  neutralisation
• Improved whiteness & absorbency with reduced strength and weight loss