Mildew proofing
The finish that is given
to protect fabrics from mildew is known as Mildew Proofing,,
This is a chemical and
property giving finish.
This finish is very important
for cellulose fibre fabrics like cotton, jute, hemp, linen because the Micro
organisms consider and utilize them their food and destroy them.
from the above said cellulose fibers, Surgical cloth, bed sheets, underwear etc., are made. Therefore
they should be protected from mildew.
Temperature- 25 to 35°C and high relative humidity at a pH of 7 are the favorable conditions for their growth.
So, for the protection
from mildew it is essential mildew proofing is given.
Requirement
1 They should not affect the fastness property
of the dye fabric.
2 It should not affect the physical properties
of the fabric like strength, feel etc.
3 Durable and non-durable finish can be produced
The finish should be fast
to light, wash and dry cleaning
Chemicals
Many antiseptic substances
have been used to prevent the growth of mildew in cotton goods.
Phenols ,Cresols ,Chlorophenols,
Pheny phenols and salts of Zinc, Copper and Mercury have been used extensively.
Salicylanilide which is marketed under the trade
name of Shirlan is one of the most suitable antiseptics for cotton goods.
Salicylanilide is not soluble in water Ammonia is a solvent for its.
0.2 % of salicylanilide gives excellent protection
again mildew. Shirlan Extra, Shirlan D, Shirlan A are the three verities of
salicylanilide available today.
Some Organic compounds and
Organo Metallic compounds can also be used to get this finish.
Process
Pad –Dry- Cure
Concentration of the chemical is 0.5 % .It can also be used on wool and
silk.
