AVCO-LOR WHITE RPU

READY MADE WHITE PASTE FOR PRINTING
AVCOLOR WHITE RPU is a concentrated fine dispersion of Titanium-dioxide in aqueous paste, ready for printing white and “coloured-matt” designs on textile fabrics.

SPECIFICATION:

Viscosity (25°C) 70 – 80 d.Pa.s (Haake viscosimeter).
Appearance Viscous white paste
Chemical nature Dispersion of TiO2 in a soft acrylic binder and special printing additives.
Compatibility Is not compatible with cationic products, strong acids and strong alkalis.
Density App. 1.5 g/cc.
Ionicity Anionic / nonionic.
pH (as is) 7 – 9
Solubility Can be further dispersed in water.
Storage Store in a cool place, in a tightly closed drum, at temperature above O°C. Protect from frost. When properly stored, storage time is at least 12 months.

PROPERTIES & USES:

  1. White effect is excellent, with a very good coverage of the printed area.
  2. Suitable for printing with fine screen types on flat bed and rotary printing
    machines.
  3. Suitable for woven and knitted fabrics, made of natural, synthetics and blends.
    (dyes of synthetic fabrics should be fast to sublimation).
  4. Hand of printed fabrics is not brittle and coarse.
  5. No skin formation after prolonged storage, if drum is tightly closed.
  6. Good washing and rubbing fastness of the printed areas if cured properly.
  7. AVCOLOR WHITE RPU is suitable for further mixing with a clear paste for “white on
    white”, “coloured-matt” and for weaker white printing effects.

APPLICATION:

  1. AVCOLOR WHITE RPU should be printed as is. After long storage, the product should be pre-filtered before use.
  2. After printing, dry at 120°C and cure for 3-5 minutes at 150°C. It is possible to increase fixation temperature up to 180°C and to shorten fixation time to 1.5 minutes.
  3. If lower viscosity is desired, add small amount of electrolytes such as ammonium sulphate, or add 5-10 % of water followed by high speed mixing.
    For increasing viscosity use AVCO-CLEAR NP.
  4. For improving fastness results add 0.5-1.5% AVCO-PRINTFIX L.
  5. AVCOLOR WHITE RPU can be used to produce “coloured-matt” effects. Blend with a standard clear printing paste, adjust viscosity with AVCO-CLEAR NP, and add the needed amount of AVCOLOR pigments.
  6. AVCOLOR WHITE RPU is used as is. It is possible to reduce white pigment concentration by blending with a clear paste, to produce weaker white effects.