FINOSTAB PK is a peroxide neutraliser designed to remove residual peroxide from the bleaching process before Dyeing Process, because of the high sensitivity of many Reactive dyes to the carry forwarded peroxide from the bleaching. Time, water and steam savings are achieved by elimination of intermediate rinses, giving a greater efficiency of process and ensuring shade consistency.
SPECIFICATIONS
.
Appearance
:
Pale liquid
Constitution
:
Blend of special salts
Type
:
Anionic
Solubility
:
Readily soluble in water
Compatibilty
:
Stable to hard water and the chemicals applied in Reactive Dyeing Process.
FINOSTAB PK
Provides greater efficiency of process by reducing the time and water required for intermediate rinsing between bleaching and Dyeing Process.
Gives a balanced reaction with residual peroxide producing a soluble acid which helps in neutralising any residual alkali.
Does not interfere with subsequent Reactive Dyeing Process even if used in excess.
APPLICATION
The amount of FINOSTAB PK needed depends on the amount of hydrogen peroxide left after leaching and dosage can vary from 0.5 – 4.0 g / l.
The amount of FINOSTAB PK needed depends on the amount of hydrogen peroxide left after bleaching and dosage can vary from 0.5 – 4.0 g / l.
At the end of the hydrogen peroxide bleach cycle, add FINOSTAB PK at 75 – 85 oC and treat in the cooling bath for 10 – 15 minutes. Ensure that residual peroxide has been completely neutralised by testing with peroxide test indicators or by spotting the fabric directly with titanyl chloride reagent. When clear of peroxide, drain the bath after cooling to 70 oC to minimise rope creasing and introduce a fresh liquor. Adjust the pH of the bath to 6.5 – 7.0 and start the Dyeing Process process in that bath. Alternatively drain the peroxide bath on completion of the bleaching process. In a fresh bath, add FINOSTAB PK, run the fabrics of 5 – 10 minutes at 60 – 70 oC then adjust the pH to 6.5 – 7.0 and add the predissolved Reactive Dyes to commence the Dyeing Process process. The technique ensures minimal carryover of surfactants, peroxide and alkali from the bleaching process, and also reduces the amount of FINOSTAB PK required.
STORAGE
Stable under normal conditions.
NOTE: The above information is in good faith but without warranty.
