Introducing
Your new presentation assistant.
Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.
Trending searches
Thermochromic Ink
1
Thermochromic Ink
Results
When same color of thermochromic pigment and acrylic paint is used then ink becomes invisible on applying heat. Oterwise ink changes to color of acrylic paint.
Method of Making Thermochromic Ink
There are four types of systems:
• Molecular rearrangement of the molecules by the rupture of covalent bonds
• Stereoisomerism
• Macromolecular systems
• Supramolecular systems
The leuco dye based thermochromic pigments consist of a color former, a developer and a solvent in a specific combination. The color former is a pH sensitive dye, mostly belonging to the Spiro lactone or fluoran class. The developer is a proton donor and normally is a weak acid such as Bisphenol A. The solvent is a low melting hydrophobic, long aliphatic chain fatty acid, amide or alcohol and its melting point is used to associate the system with a specific temperature at which the color former and developer interact. They change color either reversibly or irreversibly.. There are four types of systems:
• Molecular rearrangement of the molecules by the rupture of covalent bonds
• Stereoisomerism
• Macromolecular systems
• Supramolecular systems
Materials
1. In the mixing container, add 1 teaspoon of acrylic medium.
2. Add 5 teaspoons of Acrylic paint to the medium. Mix until smooth.
3. To the mixture, add 1 teaspoon of thermochromic pigment.
4. Once everything is completed, spread a small, even layer of the paint on a piece of cloth or chart paper. Allow it to dry for about two hours.
5. Once the material has dried, take the hairdryer and hold it over the painted area until it changes the color.
Acrylic Paint
Acrylic Medium
Termochromic Pigment
Defination
It is a leuco dye based smart ink which changes color when heat is applied.