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
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Rose Red
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Margenta
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Brown
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Vermilion
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Orange
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Yellow
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Charm Green
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Green
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Sky Blue
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Turkish Blue
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Blue
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Dark Blue
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Violet
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Black
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(The above colors are for reference only.)
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.