BIOPOLISHING

BIOPOLISHING

• Here we use cellulases again to attack and weaken the cellulose fibres.

• Any fibres protruding for the surface of the garment are weakened and exposed and prone to being broken.

• Enzyme action alone is not enough to cause the breakage – mechanical action is also needed. Either the action of fabric in jet, or in tumble drying.

BIOPOLISH

• Process to attack the surface of the garment to remove hairiness, pilling

• Creates smooth surface

Often calledAnti pill washDe-pill washFlat wash Biopolishing

• for BIOPOLISHING WASHING - ACID CELLULASES are used

Fibrillated cotton Biopolished cotton

The effect on

the fabric surface

ACID CELLULASE

• Working range pH 4.5 – 5.5

• Strong –medium action attack on cotton (cellulose) fibre– Attacks cotton fibres on surface of jean

– Causes surface fibres to break and detach

– Creates smooth

• Usually in liquid form and un-buffered

• Must be “killed”– By alkalinity

– Raise temp above 70 ºC

Commonly known as “flat washing”.

• Often done after garment dyeing to clean up the garment

• Also done to soften up garments

• Possible problems

Change of shade

Loss of fastness

Loss of strength

Damage to threads/sewings

Weakening of seams

Bursts.

• Bio-polishing is a finishing process for cellulosic fabrics and garments.

• It is the process of improving surface of the material. It is also an ‘Enzymatic singeing’.

• Bio-polishing with acid cellulose effectively reduces fabric fuzz and the pilling on denim materials.

A cellulosic treatment gives the fabric a durable improvement of:

• Resistance to pilling

• A clear lint and fuzz free surface structure

• Bio-polished garment looks new even after repeated wear

• Bio-polishing permanently enhances fabric look without any chemical coating, biopolishing improves drapebility and softness.

• The fabric surface obtains a silky sheen similar to that resulting from traditional mercerisation