GUIDELINES FOR THE COMMERCIAL AFTERCARE OF SONATA F.R. FABRICS
Separate from heavy soiled items prior to washing.
Do not wash with cotton or cotton/polyester fabrics to avoid attracting lint.
Colours and whites should be washed separately.
Overloading of a washing machine can give rise to a form of creasing known as pressure creasing. Therefore unload by up to 25% in open pocket machines, and up to 50% may be required in some pocket-type machines.
Do not use soap, use a specially formulated detergent compound.
Avoid thermal shock by cooling down the load gradually particularly after the hot wash and during the rinsing stages. Fabric temperatures must be below 60 degrees c. before extraction or before cold rinsing occurs.
After washing and hydro-extracting, these fabrics can be either tumbled dry or finished through an ironing machine. Tumble dryers should again be underloaded between 25-50%. If overloaded proper tumbling action and air circulation will not occur as the fabrics are packed too tightly in the cylinder. Load should only be dried to an exhaust air temperature of 80 degrees c. Cool down dryer to room temperature by ventilating in a rotating drum before dryer is turned off. Remove fabrics quickly and fold . Greater care must be taken if calendering. Do not overdry, but ensure a level of 20-30%. Residual moisture remains in the fabric. Otherwise there may be a rejection into the first bed of the the ironer resulting in a creasing and concertina fold effect on the fabric. Possible shrinkage 3%.
Due to the potential problems which can occur by finishing these flame retardant fabrics through ironing machines, the manufacturers of the fibres recommend that for the best appearance and easy care reliability, these fabrics are tumbled dry and folded as indicated above.