Reversible Thermochromic Material
A. Principle
By using microencapsulation technology, the leuco-dyes, color developers, and temperature controllers are encapsulated and made into pigments.
The color disappears as heating above customized temperature, and reversibly colored when cooling down.
B. Product Information
Specification：Standard、BPA Free
Particle Size：3~10μm
Temperature Range：-15~70°C (At 70°C, only black and deep blue are available.)
Certification：EN-71-3, RoHS
Standard Colors：
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Red
186C |
Rose Red
238C |
Margenta
Rubine Red C |
Brown
497C |
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Vermilion
185C |
Orange
021C |
Yellow
387C |
Charm Green
Green C |
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Green
335C |
Sky Blue
313C |
Turkish Blue
320C |
Blue
301U |
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Dark Blue
294C |
Violet
2728C |
Black
Black 5C2X |
(The above colors are for reference only. Colors approximate Pantone No.)
C. Available Forms & Applicability：
| No. | Forms | Slurry | Powder | Masterbatch |
|---|---|---|---|---|
| 01 | Solvent：Ink, Paint | Suggest Concentrations：5~30%w/w(25%) |
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| 02 | Aqueous：Ink, Paint | Suggest Concentrations：5~60%w/w(25%) |
Suggest Concentrations：5~30%w/w(25%) |
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| 03 | Plastic Injection, Extrusion | Suggest Concentrations：0.1~5%w/w(0.5%) |
Suggest Concentrations：1~5%w/w(4%) |
：Applicable、 ：Conditionally Applicable、 ：Not Applicable。
D. Notice：
1. Avoid using polarity solvents such as alcohols (methanol, ethanol), ketones (acetone, butanone) …etc.
2. It’s normal phenomenon the slurry clumps up, if it occurs, please double boil the slurry at 45°C, and stir gently until uniform before using.
3. Processing temperature should not exceed 230°C.
4. Thermochromic materials and products should be sealed and kept in dark to prevent UV aging that will affect color-changing function.
5. The colors and color-changing temperature ranges may slightly differ between standard and BPA-free products.