|
PQ® Sodium
and Potassium Silicates are used in the textile industry for a variety of
functions including:
Peroxide bleach stabilization
Detergency
Pad-batch dyeing
Corrosion inhibition
Water treatment
Silicates complex (that is, they tie up) such metals as iron, copper, and
manganese—materials that catalyze hydrogen peroxide decomposition. Silicates
thereby maximize the effectiveness and efficient use of peroxide bleach in
bleaching textiles. The process becomes more economical.
Silicates add
detergency benefits to textile cleaning operations that remove oil, grease and
dirt from fabric. Silicates provide buffered alkalinity and soil suspension. The
alkalinity supplied by the silicate neutralizes fatty acid soils and saponifies
triglycerides and greases. The buffering effect helps to maintain an alkaline
solution even after introduction of acidic soils. The silicate also
deflocculates clays and suspends particulate soil, preventing them from
redepositing on the fabric.
In the pad-batch dyeing process, silicates
contribute alkalinity and buffering necessary to maintain the required pH for
the dyeing process.
Silicates are also corrosion inhibitors. They guard
metal tanks, pipes, and water lines against chemical attack by soft water or
alkaline solutions.
Activated silica can be used as a coagulant aid in
pre-treatment or post-treatment of water, to help floc settle faster and more
efficiently.
Please contact PQ Technical Service if you would like
assistance in selecting the appropriate silicate for these applications or
others.
|
