AVCO-PRINTFIX L

CROSS LINKING AGENT FOR PIGMENT PRINTING
AVCO-PRINTFIX L is a cross-linking agent, mainly used to improve the wet fastness of fabrics printed with pigments. The product contains in its molecule several reactive sites, that can bond together the binder polymer chains and the textiles fibres.
AVCO-PRINTFIX L reacts only at elevated temperatures in the presence of acidic catalyst, and cannot cause any blocking of screens during printing process.

SPECIFICATION:

Appearance Clear, colourless, slightly viscous liquid
Chemical nature Blend of highly etherified methylol melamine compound and solubilizers.
Compatibility Is not resistant to acids and to strong alkalis
Ionicity Nonionic
Solubility Not soluble in water, can be dissolved in organic solvents and alcohols.
Storage Do not store in direct sun and in hot places. stable for at least 12 months.

PROPERTIES & USES:

  1. AVCO-PRINTFIX L is used in combination with self-linking textile binders, such
    as AVCO BINDER SPC, to improve the wet fastness of pigment prints on fabrics made
    from synthetic fibres, cellulosic fibres and blends.
  2. AVCO-PRINTFIX L does not impair the shelf life of the ready made printing pastes,
    or affect their running properties. It is necessary to ensure that the pH of the
    printing paste should be 7-8 when a long storage time is needed.
  3. AVCO-PRINTFIX L is a concentrated product.
  4. AVCO-PRINTFIX L is a liquid product, and can be used in an automatic colour
    kitchen.
  5. AVCO-PRINTFIX L is a non-yellowing product which does not affect the colour of
    the printing pigments.

APPLICATION:

  1. AVCO-PRINTFIX L is applied under the normal processing conditions of pigment printing, with white spirit emulsion or without white spirit. It is used at a concentration of 3-12 g/kg, depends on amount of the binder and type of the substrate. For 100% synthetics amount of AVCO-PRINTFIX L should be increased.
  2. AVCO-PRINTFIX L should be added to the stock thickening or directly to the printing paste by means of an high speed mixer, after the thickener was incorporated.
  3. Aqueous printing paste containing AVCO-PRINTFIX L can be stored for a long time, providing that the pH of the paste is maintained in the range of 6.5 – 7.5.