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Penn Color's polyvinyl chloride
based dispersions offer optimum color value
and maximum pigment concentration for the coloration
of vinyl plastics. Referred to by "83-Series"
(single pigment dispersions), these PVC dispersions
are currently being used in all types of vinyl
processing and compounding including: ribbon
and paddle blending, intensive mixing, calendaring
and extrusion. Penn Color dispersions are used
in the manufacture of unsupported
and supported vinyl materials for many industries
including wallcovering, interior
automotive components, residential and commercial
flooring,
pool liners, book binders, vinyl
siding and window profiles. The product
line is available in several physical forms
to complement the compound and manufacturing
process in which the colorants are to be utilized.
These forms are:
- Micro-Pulverized –
the most popular version, powder form, is
typically classified at 20 or 30 mesh. It
has excellent distributive mixing characteristics.
- Random Chip – the
particles are irregularly shaped, ranging
in size from 1/8" to 3/8". The material
is post-screened to reduce fines.
- Minibeads – are
spherical in shape, approximately .045"
in diameter, and dust-free with excellent
feeding characteristics.
- Diced – these dust-free
cube shaped particles are approximately 1/8"
x 1/8" x 1/8" in size.
- Pellets – are elliptical
in shape, approximately 1/8" long and
dust-free with good mixing characteristics.
Polyvinyl chloride based pigment
dispersions are produced using various processing
techniques to obtain the ultimate in consistent
product quality from batch to batch. They are
formulated from virgin PVC polymers of optimum
molecular weight at precise pigment concentrations
to ensure excellent end-user compatibility.
PVC color concentrates offer the
cleanest, most efficient means for coloring
vinyl. Outlined below are a few of the advantages
PVC color bases have over plasticizer pastes
or dry pigment.
- Uniformity – An
intensive process to achieve dispersion, coupled
with post-blending steps, virtually eliminates
any variation in color throughout a given
lot.
- Non-Settling and Ease of
Handling – PVC dispersions are environmentally
friendly compared to raw pigment toners or
pastes and have long-term shelf stability.
- Higher Pigment Loadings
– Inorganic pigments are satisfactorily
dispersed at 60% to 75% loadings in most instances.
Organic pigments generally fall into the 30%
to 50% range. The correct selection of a concentrate
will depend upon the film thickness and composition
of the end-product in which the dispersion
will be used.
- Total Color Development
– Penn Color products offer the finest
dispersion of pigment agglomerates. This provides
the end-user maximum color strength and transparency.
Pigment strength will not be affected by any
additional shear, which might occur during
a calendaring or extrusion process.
- Formulation Flexibility
– Specified plasticizers, stabilizers,
and other ingredients can be formulated into
Penn Color’s dispersions without affecting
the dispersion quality. This affords the vinyl
chemist more formulation latitude for each
finished product. Since the particle size
of the dry PVC dispersions is controlled,
the separation of concentrate from the base
compound during processing is eliminated and
color control can be maintained throughout
the batch.
For more infomation contact
us or e-mail plasticsinfo@penncolor.com.
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