Astra / Verona basic dyestuffs have an outstandingly good price/strength ratio due to their high brilliance and good affinity to ligning containing pulps.
They are particularly suitable for mechanical wood pulp, semi-bleached thermo mechanical pulp (TMP), chemical thermo mechanical pulp (CTMP) and unbleached pulp.
Some Astra / Verona dyestuffs can also be used in selected wood-free bleached pulps, being added either internally or in the size press. This provides extremely brilliant, and in some cases, fluorescent shades.
The Verona name is used in the United States.