Theromochromic pigments are a Leuco dye that change state when heat is applied. In this advanced workshop we will weave a textile with an integrated heating circuit and print it with thermochromic pigments.
In this workshop you will learn about simple textile printing techniques, and how they can be applied with thermochromic pigments. You will understand the fundamentals of Leuco dyes, or thermochromic pigments. And you will learn how to use basic weaving techniques to create a woven heating element.
Silk Screening- textile or paper
Felt Battery Holder
Stretch the pantyhose over embroidery hoop until taught.
Tighten embroidery hoop to secure.
Tape down loose nichrome ends to back of loom.
Weave a plain weave structure with regular yarn. A plain weave is the simple structure of over-under-over-under.
Mix the print paste. The ratio of pigment to paste determines opacity of color. Decide what effect you want and mix to your liking.
Make sure the screen is dry.
Place screen on desired area on weaving. Make sure the screen is making contact with the textile.
Choose one side of the weave to be positive and the other will be negative. First we will work on the positive side.
Take one crimp bead and slide it onto the first lead.
Take some flat nose pliers, and smash them around crimp bead, creating a tight and secure connection between the button and the nichrome lead. Trim excess wire.
Cut a piece of solid core wire. Strip ends.
Repeat steps 2-9 on all remaining positive leads on weaving.
With the negative lead, take pliers and twist wire around to form a coil.
Repeat on all remaining negative leads.
Now we will make the connections to the battery. On the negative side, take all leads and slide through crimp bead.
Smash with pliers and trim excess wire.
Repeat on positive side.
Couching is a technique of sewing down another thread, filament, or wire, with a zig zag stitch on a sewing machine, or a whip stitch by hand. In this tutorial, we will couch the wires onto a piece of felt, to hold down the sample.