PARAKOL-YS

Parakol-YS | Dyebath Conditioner and Washing Off Agent

Product Information

Parakol-YS is an economical concentrated polymeric compound which is used as a dyebath conditioner and washing off agent. Calcium and Magnesium impurities in the dyebath lead to precipitation of dyes as well as poor washing off of hydrolyzed dyes at the end of dyeing. Due to its chelating action, Parakol-YS prevents such precipitation and also helps in easy removal of hydrolyzed reactive dyes at the end of dyeing operation. Parakol-YS is recommended as a washing off agent for reactive dyes in batch operation as well as in continuous operation.

Key Features & Benefits
Key Features Benefits
Based on copolymer acrylic acid-maleic anhydride
Stable to high temperature i.e more than 100 deg.C
Sequestering action
Prevents precipitation of reactive dyes in presence of Calcium & iron
Good dispersing action
Good dyebath conditioner for package dyeing
Does not complex with dyestuffs.
Colour yield or tone not affected
General Characteristics
Physical appearance
White to off white powder
Ionic nature Anionic
pH of 1% solution 8 +/- 1
Miscibility Soluble in water
Compatibility
Compatible with nonionic and anionic products
Stability
Stable to dilute acids and dilute alkalies
Application

Dye bath conditioner

  1. Dye bath conditioner
    0.15-0.3% Parakol-YS is added in the bath before addition of dyestuffs or chemicals. Quantity of Parakol-YS would depend upon liquor ratio, quality of process water, quality of salt and efficiency of scouring operation as well as concentration and solubility of the dyestuffs used in the recipe.
  2. Washing off by Batch Operation in Jigger
    0.15-0.3 g/l Parakol-YS
    0.1-0.2 g/l Kalium-NNS (Conc) (optional)
    pH adjusted to 7, Residual salt concentration should be less than 2 g/l before soaping.

    Carry out soaping at 85-95 deg.C for 10-30 min., hot wash, cold wash, neutralise. Repeat soaping in fresh bath for dark and problematic shades. Carry out fixation for dark and
    problematic shades.

  3. Soaping of reactives & vat dyes on continuous soaper  
    0.3-0.6 g/l Parakol-YS
    OR
    1.0 g/l Parakol-YS (after dilution 1:3)

Note : Product is hygroscopic, so container to be closed properly after use.

Instructions For Dilution

Procedure to prepare 30% Parakol-YS

  • Take 70 parts of DM water
  • To this, gradually add 30 parts of Parakol-YS under constant stirring at 500-600 rpm using paddle stirrer to obtain clear homogenous liquid.

Preservation: It is recommended to add 0.1% Bronopol (2-Bromo,2-nitropropane, 1,3-diol) or Methyl Paraben (methyl para hydroxy benzoate) as an antimicrobial agent to avoid fungal / microbial growth.

Note:
  • In order to carry out dilution of Parakol-YS faster, 60 deg.C DM water may be used.
  • pH of final dilution should be maintained at 7-7.5.
  • The diluted product will be colourless to light brown liquid.
  • Un-dissolved particles if any can be filtered off.

Precautions

Storage : Store in cool, ventilated shed away from heat and direct sunlight.Storage temperature should not exceed 35 deg C.Close lids firmly to avoid contact with air and moisture.

Shelf Life : 8 months from the date of manufacturing, if stored under controlled conditions.

The above information is given in good faith and is without warranty

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