From Interaction Station Wiki
Revision as of 12:36, 20 March 2020 by WangN (Talk | contribs) (Heating Elements:)

Jump to: navigation, search


Thermochromic inks or pigments change state in the presence of heart.

Once they reach temperature, the inks become colorless pigments can be mixed with different substrates like paint, glue, resin, Polymorph, Sugru, etc.

Thermochromic pigments start to vanish at 29°C by the time it reaches 31°C it turns translucent,

returning to normal when the temperature reduces.


You can buy them online:

Example projects:

1.[Color Changing Textiles]

2.[tapestry changes colour in response to Wi-Fi signals]

3.[Dynamic Skin]

4. [T H E U N S E E N selfridges]



During thermochromic ink or pigment application, there are few variables affect the outcome and the appearance of the textile.

Let's take a look.

1. what amount of pigment will you use?

if you have a higher ratio of pigment to base, it may take more time and/or energy to change.

2. base color: what will you mix it with?

Different bases will affect transformation time. You can combine different colors to create different effects.

3. What material will you apply it too?

For example, the tracing paper reacts more quickly than canvas.

4, How will you apply it?

Paintbrush? Silkscreen? the uniformity will determine how evenly it changes.

5. What is the room temperature?

if the room is already warm, it will impact your pigment(e.g. hot summer is not the best time for the Thermochromic projects).

Heating Elements:

Do you still remember What is the resistance?

You want your conductive material to have just the right amount of resistance.

Too high and it won't change. Too low and you might create a short circuit.

1. conductive thread:

different kinds of conductive threads have different resistance. And the legths of the thread also affects the resistance. Make sure you have at least 2.5-3 ohms of resistance.

2. conductive fabrics

Most have a very low resistance, so you need to use enough to create some resistance.

3.Flexinol wire or muscle wire.

Medium resistance, high heat tolerance.

4. Heating pad High resistance, high heat tolerance.

calculating current: