A leading US masterbatch
producer has developed a new series of colour
masterbatch that helps converters to reduce
the purging time during manufacture of extruded,
injection moulded as well as blow moulded products.
This new series called SmartColor Masterbatches
limits the colour build up in the plastic processing
equipment. The decreased build-up shortens the
purging time required during switchover of colours
by almost 60%. This helps in improving productivity
as well reduction in waste. Unlike conventional
purging agents, which remove color contamination
after it occurs, SmartColor Masterbatches retard
the formation of such contamination. Ampacet
Corporation, USA, created this line by evaluating
a wide range of raw materials to find those
less likely to cause color deposits. In addition
to improving operations by shortening purge
time, SmartColor Masterbatches also cut the
amount of resin needed in purging by up to 50%,
leading to significantly less scrap generation.
With SmartColor, processors can expect shorter
color changes, less need to dismantle and clean
machines, less scrap to deal with, and fewer
color quality issues.
Another manufacturere has developed two new
purge compounds for a range of polyethylene
processing.
One of the shutdown purge reduces the amount
of oxidation of PE and protects equipment during
shutdown and start-up. It is designed to cut
cross-linking, gel formation and carbonization.
The Houston company recommends its use at full
strength for blown and cast film, injection
molding and blow molding.
Another compound is a pellet containing purge
agents, a cost-effective way to clean up equipment
and minimize gels and cross-linking. In film
and molding equipment it removes degraded PE.
It can be used for quick color changes and before
manual cleanup.
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