| I.
Introduction
These special effect pigments allow for a visual response
to changes in temperature. The pigments are composed of
micro capsules that change color reversibly. When the temperature
is raised to a specified temperature the pigment goes from
colored to colorless. The pigment returns to the original
color as it cools down. The particle size of the thermochromic
pigment for all products is <6 microns (97%). The color
and temperature are selected by the user.
II. Color
Standard
Colors |
Pantone
No. |
| Blue |
Reflex
Blue |
| Black |
Pantone
7C 2X |
| Magenta |
192 |
|
Non-
Standard Colors |
Pantone
No. |
| Green |
349 |
| Brown |
N/A |
| Turquoise |
Green C
|
| Purple |
2735 |
| Red |
Process
Magenta |
| Orange |
165 |
| Yellow |
100U |
|
III. Activation Temperature
Activation temperatures between -10oC
and 69oC are available. The activation temperature
is defined as the point the thermochromic pigment reaches
95% of its colorless state. Standard activation temperatures
are 15oC, 31oC, and 47oC.
IV. Available Products:
| A.
Thermochromic powder – compatible
with solvent based flexographic, UV, screen, offset,
gravure and epoxy ink formulations.
B. Thermochromic
aqueous slurry – a 48% (w/w) concentration
compatible with water based flexographic, UV, screen,
offset, gravure and epoxy ink formulations.
C. Thermochromic LDPE
pellets – a 50% (w/w) concentrate compatible
with polyolefins, PS, PVC, ABS, and most other resin
systems.
D. Thermochromic aqueous screen ink
(w/ binder) – a 24% (w/w) concentration
compatible with paper, plastics and other substrates.
E. Thermochromic aqueous flexographic
ink (w/ binder) – a 24% (w/w) concentration
compatible with paper, plastics and other substrates.
|
V. Solvent Compatibility
The thermochromic pigments are sensitive to polar solvents.
Below is a list of compatible and non-compatible solvents.
| Glycols |
Water |
Xylene |
| Isobutanol |
Ethanol |
Methyl Pyrrolidone |
| White Spirits
|
High Chain Ketones
|
High Chain Alcohols
|
| Toluene |
Naptha |
Silicones |
| Mineral Spirits |
High Chain Acetates |
Butanone Oxime |
| Acetone |
PMA |
Propyl Acetate
|
Ammonia |
VI.
Recommended Concentrations
for Ink, Paint and Plastic
Formulations
|
Ink,
Paint
Solvent
type |
Ink,
Paint
Water
Type |
Plastic
Injection/Extrusion |
|
| Thermochromic |
Powder |
Aqueous
Slurry
|
Powder/LDPE
Pellets
|
| Concentration |
15%-30% |
15%-30% |
0.5%-3.0% |
|
All applications using the thermochromic products
should be thoroughly tested prior to approval for production.
|
The
information
herein is
believed
to be reliable
and is to
assist customers
in determining
whether
our products
are suitable
for their
applications.
However,
no warranty,
express
or implied,
is made
as to its
accuracy
or completeness
and none
is made
as to fitness
of this
material
for any
purpose.
Our products
are intended
for sale
to industrial
and commercial
customers.
We request
that customers
inspect
and test
our products
before use
and satisfy
themselves
as to contents
and suitability.
Nothing
herein shall
constitute
any other
warranty,
express
or implied,
including
any warranty
of merchantability
or fitness,
nor of protection
from any
law or patent
to be inferred.
All patent
rights are
reserved.
The exclusive
remedy for
all proven
claims is
replacement
of our materials
and in no
event shall
we be liable
for special,
incidental
or consequential
damages.
We shall
not be liable
for damages
to person
or property
resulting
from its
use. Consult
the Material
Safety Data
Sheet for
additional
information. |
|
