Thermochromic ink print

Printing with thermochromic ink that change colour with temperature.

Materials

  • Fabric, silkscreen
  • Thermochromic Pigment, Silkscreen Printing Clear Base, squeegee
  • Cups, spoons, tissues, plastic bags

Instructions

  1. Mix the thermochromic pigment with silkscreen printing clear base in the ratio of 1:3 in a paper cup.
  2. Lay the table with plastics to protect the surface follow by laying tissues.
  3. Put the fabric on top of the tissues.
  4. Put down the silkscreen on top of the fabric.
  5. Scoop the mixture and spread it on the edge on the silkscreen.
  6. Have someone to hold the silkscreen frame.
  7. Hold the squeegee in a 30 degree and swipe it evenly back and forth till the colour spread throughout the board.
  8. Lift the silkscreen while holding down the fabric.
  9. Let the ink dry and done.

Explorations

First, I tried the African ink slab that functions as a huge stamp. Stir the slab into a puddle of ink to evenly coat the pattern. Stamp the slab onto the fabric.

The pigment was a bright yellow. The black paint from the slab has interestingly mixed with the pigment and produce a dirty yellow. I thought it was not bad for my first try.

Next up, silkscreen print. It was pretty straight-forward and I love the colour.

This time, I wanted to try with gradient. The grey and pink were spread on different sides of the squeegee when I started. However, everything was mixed together as this approach has been done several times in various ways. Thus, I wasn’t able to get a distinct separation and it became a dark purple print. I am still pretty happy with the outcome and using a bright colour fabric certainly give a strong interest.

I tested the colour changing ability with a heat gun. My print vanish. Pretty cool!

Conclusion

Thermochromic ink is a fascinating medium for its vanishing ability with the application of heat. If a tattoo could be done in thermochromic ink and vanish when people get nervous, it could be tattooed in a more obvious place. Maybe a smile on the face for I have such a poker face. JK. Perhaps a body print with a pattern from nature and we could become chameleons that blend with the environment as we wish! Superpower! Even better if there’s different print reveal at different temperature. If we are in danger, spikes will be shown.

Application

Business card.

A thermochromic luminous dress.

Vacuum forming

Shaping materials by using heat and pressure to press it against the mould and form the shape.

Materials

  • Thermoplastic Sheet, object to mould, scissors
  • Vacuum Forming Machine

Instructions

  1. Cut the thermoplastic sheet into the maximum size the machine can fit.
  2. Place the mould in the machine.
  3. Place the cut sheet on top of the machine.
  4. Close the ledge and tightly clamp the handle.
  5. Pull out the heater above it.
  6. Wait for the sheet to smoothen, about 1 min will do.
  7. Push back the heater.
  8. On the pump switch while pulling down the level to raise the mould platform.
  9. Release the handle clamps to take the shaped sheet.
  10. Remove the mould.

Samples

These samples show how to get a neat edge in the protruding sections. Holes are added to allow air to be sucked in for these areas can be bevelled inwards.

The back of ADM logo.

Complicated edges can form nicely with the right approach.

Explorations

A flower with a highlighter. If you look carefully, the logo is slightly embedded in the middle. The edge is pretty neat with the vacuum pump technique.

This is my favourite!

Look at the back, its a jelly bean!! So squishy-looking!!

Conclusion

I think vacuum forming is a relaxing thing to do. Ahaha. It is commonly used in the product and food packaging industry. The only thing missing is the colour. If there’s print on top of it, it will be so cool to see it distort.

Applications

3d Gypsum Panels Collection - 3DOcean Item for Sale

Pretty as screen panels.

Island - Organiseur De Bureau Myyour Blanc - rangement bureau

Food packaging/ pencil holder.

Rivet mold (background) and vacuum formed shell (foreground)

Large scale; table or model car.