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Characteristics |
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1.Non radioactive |
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The pigments are free from any
radioactive substance such as
promethium, thus they are safe in a
wide range of applications.
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2.Excellent stability of physical &
chemical properties |
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The pigments
can be used under temperatures
ranging from as high as +500°C to as
low as -20°C without deterioration
of its light emission function.
(temperatures lower than -20°C have
not been experienced yet)
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(1) Short time charging and
excellent endurance |
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The pigments can be recharged almost
indefinitely as per its stable
crystal structure. It can be used
for outdoor applications.
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(2) Good photo-resistance |
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The pigments do not change its color
or deteriorate even under
irradiation of a 300W high pressure
mercury lamp for 1000 hours.
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(3) Chemicals resistance |
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The pigments are stable chemical and
can resist most chemicals. But it
will be decomposed into metal oxides
when in contact with water and then
caused losing luminance.
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(4) Environmentally friendly |
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The
photoluminescent pigments are free
from cadmium, lead, mercury,
arsenic, chromium, antimony and
selenium. (test results by part 3 of
EN71, ASTM of USA and MSDS) which
will not post any threat to the
environment.
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Physical and optical
properties of photoluminescent
pigments |
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1.
The crystals are dark soaked for 24
hours before exposing to fluorescent
light of 1000lux (a 27W fluorescent
lamp at 60cm distance in
perpendicular direction) for 30
minutes, and the initial luminance
is measured from the 10th second
after irradiation is stopped.
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2.
Afterglow time means that it takes
for the luminance to decay down to
0.32mcd/m².
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Test
method: After keeping the
luminescent material from exposure
of light for 24 hours under
conditions of 25°C, 60% humidity,
put 0.2g of photoluminescent powder
respectively in a dish with diameter
10mm made of aluminum, put the dish
under a 27W luminescent lamp at 60cm
in perpendicular direction (about
1000 lux), irradiate it for 30
minutes, stop the irradiation and
then measure the luminance with time
passing with a luminance meter.
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Mark |
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High
brightness: the powder with 45-65μm
is the best glow effect, suitable
for integrating into plastic molding
(extrusion). This model is difficult
to be used in screen printing
application due to its large
particle size.
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Medium
brightness: the powder with 25-40μm
is suitable
for most of the product purposes.
Initial glow brightness is not as
good as size 45-65μm
model but close to the long after
glow effect. They can be used for
plastic molding (extrusion) and
screen-printing.
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Low
brightness: the
powder with 10-20μm
allows the best
screen printing quality but initial
glow brightness is weaker comparing
to the other two available particle
sizes.
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Application |
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Paints,
Coating, Inks |
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Luminescent
paints and screen printing inks:
suitable for coating or printing
luminous figures, and patterns on
the surface of body, clothes, caps
and etc.
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Photoluminescent
masterbatch |
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Luminescent
masterbatch is a new kind of
self-glowing materials, made by
mixing luminous pigment with
transparent plastic resin. It can be
made into various articles by cast,
extrusion, coating. It can be
applied into toys, watch, switches,
buttons, handles, plastic board as
well as anti-slippery slips.
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Photoluminescent
signs, film & tape |
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Luminous
signs can be widely used in traffic,
fire control, marine signs for
ships, emergency escape routes,
nameplate and all kinds of public
sites, sceneries.
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In chemical fibers |
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Using
fine photominescent pigment can make
luminescent fibers with different
luminous effect.
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All information copyright@1999-2008
Shenyang Joinunion Chemical Technology co.,Ltd. |
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辽ICP备05008865号 |
