AVCO-L – 100

“WASHING OFF” AGENT FOR REACTIVES
AVCOL 100 is a non-surface active dispersing agent used for the washing-off of cellulosic fabrics and yarns dyed and printed with reactive dyestuffs. The product offers high level of wash fastness properties to the treated goods which cannot be achieved with detergents.

SPECIFICATION:

Appearance Clear yellowish liquid
Chemical nature Sodium salts of organic and inorganic polymers in aqueous solution.
Compatibility Compatible with hard water, alkalis and mild acids. Is not compatible with cationic products.
Density (gr/cc) App. 1.15
Ionicity Anionic.
pH (1%) 6.5 – 7.5
Solubility Soluble in water at any proportion.
Storage stability Stable for at least 12 months.

PROPERTIES & USES:

AVCOL 100 has well balanced properties of a good dispersing agent, sequestering agent and a protective colloid which offers the following advantages:

  1. AVCOL 100 prevents redeposition of the reactive dyes hydrolyzate onto the
    cellulose
    fibres surface in the end of the dyeing process.
  2. AVCOL 100 is sequestering and dispersing calcium and magnesium present in the
    water
    which may interfere in the washing-off process.
  3. AVCOL 100 is non-foaming at all, and can be used in all types of high speed jets.
  4. AVCOL 100 is a liquid product, and can be metered very easily to the washing
    machine.
  5. AVCOL 100 has no influence on dyestuffs containing metal complexes in the
    molecule
    structure, and produces no change in shade and no decrease in normal light
    fastness of
    reactive dyestuffs.
  6. Improves the rubbing fastness and wash fastness of dyed and printed goods.

APPLICATION:

General dosage recommended is 1-2 g/l.
For critical dyes such as Reactive Turquoise it is recommended to apply a fixing agent
such as 1-2% AVCOFIX – FF (fixing agent free of formaldehyde) after the soaping-off process.
TYPICAL METHODS
  • Soaping off reactives in jets:
    (Vinyl-sulfone dyes)
    1. Rinse cold.
    2. Acidify at 40°C
    3. Rinse at 70°C.
    4. Boil with 1-2 g/l / AVCOL 100.
    5. Rinse at 80°C. .
    6. Rinse at 60°C.
    For dark shades the boil stage should be repeated.
  • Soaping off reactives in jets:
    (MCT dyes)
    1. Cold rinse.
    2. Rinse at70°C.
    3. Rinse at 70°C.
    4. Boil with1-2 g/l AVCOL 100
    5. Rinse at 80°C
    6. Rinse at 60°C.