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Lyzersoft
PDR
(The protective colloidal action of the
product on the hardness constituents in water corrects
deficiencies in dyebath thereby promoting uniform dyeing.)
Constitution: Polymeric
system with functional additives.
Appearance: Clear
transparent solution.
Compatability: It possesses
general compatibility with anionic and non-ionic ingredients.
Effect: Apart from the
hardness constituents that are naturally present in water,
depending upon the quality of raw cotton considerable quantities
of calcium and magnesium leaching out of the fabric are brought
into bleach and dyebath. These metal ions cause reduction in
colour yield, besides causing loss in fastness properties.
LyzerSoft PDR exerts a restraining action
on the hardness constituents in water by moderate chelation and
also effectively disperses precipitates that develop in hard
water from cotton impurities such as waxes, pectins etc. As a
result the product combats adverse effects of calcium and
magnesium ions on the solubility of anionic dyes. Since the
product is moderate in its chelating action it does not affect
metal ions in metal complex dyes.
Very high concentrations of calcium and magnesium ions are
responsible for a great deal of loss in colour value that can be
obtained with dyestuffs. Due to the chelation effect of the
product the drawbacks due to moderate hardness in water can be
tackled effectively without worry of de-mineralisation of the
dyestuff. In cotton dyeings calcium carbonate formed in hard
water is maintained in a finely dispersed state preventing
opalescence of the dye liquor. The
recommended dosage of the product varies between 2-5gpl.
Advantages:
• The product possesses moderate chelating action and hence does
not cause de-mineralisation of metal complex dyes.
• The product suppresses the formation of calcium salts of
reactive dye hydrolysates.
• The product exerts a good dispersing action on precipitates
that are formed during various stages of wet processing.
• The product is resistant to concentrations of acids and
alkalies or electrolytes normally encountered in dyeing.
Precautions:
Since the product is anionic in character, thorough washing is
recommended prior to treatment with cationic compounds.
Note:
According to our best knowledge and technical
experiments, the above data is true and accurate. Regarding to
variety of consumption procedures, it is recommended to evaluate
the information before use.
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