Highly substantive, anionic, direct dyes, specially developed for the paper industry
They are particularly suitable for dyeing wood-free paper and board in the stock and at the size press.
Advantages of Cartasol F dyes:
High affinity, giving high color yield, clear backwaters and the possibility of adding the dyes late in the stock flow system
The liquid dyes are particularly suitable for continuous addition
Good bleedfastness
Very bright shade
In some combinations of selected F and K-dyes (for example, tissue dyeings), the addition of a fixative is not necessary since the F dye is fixed by the K dye The usual Clariant recommendation when both K and F dyes are being used is to add K dye at an earlier addition point than F dyes as superior economics results. Colored two-sidedness can be reduced or eliminated. Cartasol F dyes are not sensitive to pH variations and can be applied in the range 4 to 9.
