1. Product Identifier
Reversible thermochromic pigment Dark Brown
Mat No.: 1001114
Product Code: CW-DBW
Color: Dark Brown
2. Product Specification
Temperature Range (0C):
-5-0, 0-3, 7-10, 12-15, 17-20, 20-23, 26-29, 31-33, 35-38, 38-42,
41-45, 48-52, 58-62, 61-64, 65-68
3. Physical & Chemical Properties
|1||Appearance||Fine solid powders.|
|2||Particle size (D50)||2–6 microns|
|4||Heat resistance(10min)||2300C max.|
|5||Service life||>1000 times|
|6||Light fastness||1 - 3|
|7||Solubility in water||Insoluble|
|8||Solubility in solvents||Insoluble in methylbenzene,dimethyl benzene, kerosene, gasoline,
cyclohexanone, pine oil. Soluble in methyl alcohol, alcohol,
acetone, ester acetate, propanol,butyl alcohol, isopropanol.|
|9||Feature of color change||Colored at low temperature, colorless at high temperature|
4. Main Applications
It is a black reversible thermochromic pigment, which can realize
the effect of covering function by from black to transparent when
4.1 Theromchromic water-based/oil-based printing inks,
4.2 Thermochromic water-based/oil-based coatings,
4.3 Plastics, plastic injection, plastic extrusion, daily article
decoration, clothing, toys & handicrafts.
5. Packaging & Storage
1kg, 5kg, 10kg/bag.
Stored in tightly sealed containers and kept in dry & cool
place, preventing from sunlight, UV light. Shelf life : Two years.
6. Product Features
6.1. Color change
It changes color with the change of temperature. It is black at low
temperature. When the temperature rises, the color disappears and
becomes colorless. After cooling, it returns to black. This change
can repeat more than one thousand times.
The core of thermochromic pigment is micro-encapsulation
technology. It enhances the stability and durability of
thermochromic pigment, protects the pigment from the erosion of
other chemicals. Therefore, it is very important to avoid damaging
this coating during processing.
6.3. Colors and temperature intervals constitute a lot of pigments
The temperature that thermochromic pigments change color is not a
temperature point, but a temperature range, 3-5 0C. That is, the temperature range included from the start of the
color T1, change to the end of the color change T2. Different
temperature control factors can be selected by different
temperature control factors. Thermochromic pigment changes color at
intervals. There are many kinds of variable temperature pigments,
and the temperature range of variable temperature discoloration can
also be adjusted. Different series of temperature sensitive
pigments can match each other to obtain more colors, so as to
produce different colors at different temperatures.
6.4. Precautions for usage
Light resistance, heat resistance and aging resistance are not as
good as ordinary pigments.
Light resistance: temperature sensitive color changing pigment has
poor light resistance. It will fade quickly in strong sunlight, so
it is only suitable for indoor use. Strong sunlight and ultraviolet
rays will shorten the service life of thermochromic pigments.