Have you ever wondered about the zooming Aircrafts
over your head that releases the colourful smokes in various hues and
colours. What gives the smoke such colours? Working behind the scene is
the smoke dyes. The Smoke dyes are homogeneous mixtures of azo and
anthraquinone dyes. They are available in liquid or powder form and are
available in a variety of hues and colours. An example can be given of
the Orange smoke compositions. They are basically a 50:50 mixtures of
azo dyes and reactants. Reactions take place at a relatively low
temperature, leaving the dye to melt and on expelled by hot gases used
as coloured smoke. On thing must be mentioned here that because of the
sensitive use of the smoke dyes it should be low hazard. Smoke dyes that
are used must pass through some strict guidelines.
Smoke dyes are generally used in making colored smoke
that have use in pyrotechnic devices. Smoke dyes can be used in the
following applications:
Defence
- Smoke grenades and ammunitions used in signals and training.
Security
- Security for protection, of ATM and cash.
Safety
- Sending distress signals and marine locator markers.
Entertainment
- Making special effects, aerial smoke etc.
Pyrotechnics
for air shows.
Used
for marker buoys and distress flares.
Parameters for selecting Smoke Dyes