Auxiliary for increasing the fastness level of pigment prints
PROPERTIES
Chemical character
Appearance
pH-value
Ionic character
Solubility
Stabilities
Storage
Melamine Resin
Colourless to slightly yellowish liquid
8.0 – 10.0
Non-ionic
VINAFIX LFC is water-soluble
VINAFIX LFC is well compatible with all pigment printing pastes. In acid medium and if exposed to higher temperatures, premature cross-linking occurs.
In a cool and dry place but not below +5 °C, in well closed original containers. We recommend not to exceed a storage time of 6 months. Opened containers must be closed again tightly.
APPLICATION
VINAFIX LFC is a polyfunctional cross-linking agent, it improves distinctly the fastness level of pigment prints, particularly of textiles made of synthetic fibres or their blends with natural fibres. VINAFIX LFC is applied in both all-aqueous and solvent containing pigment printing, but also in so-called ready-made pastes. It is best added to the pastes shortly before printing. The print pastes containing VINAFIX LFC have a limited storability, it may be improved by adjusting the pastes slightly alkaline with ammonia and storing in a cool place. The average application amount is 5 – 8 g/kg print paste. For textiles with higher synthetic part or materials which are difficult to print, a higher amount of 10 – 12 g/kg or for special effects with ready-made pastes even 50 – 60 g/kg may be required. The effect of VINAFIX LFC may be enhanced further if an addition of an acid donor is made to the paste. Optimum fixation results are achieved at 150oC for 4 – 5 min.