i recently started screenprinting onto fabric, and on the ink pot it says i need to heat-fix it after its dry...but there no other information.
this might be a dumb question but do i just iron it? inside out or something?
There are also additives that eliminate the need for heat, but I'd still suggest running them through a drier at high first.
There are many reasons they don't add these catalysts to the inks naturally. Number one no is that 99.9% of tees are run through a gas drier. These additives can shorten potlife, change washability, and increase cost.
i've used the additive that come with union ink/aerotex water based ink. they seems to work, BUT, you have to use the ink right after you add the additive. After a day or so any leftover ink becomes a weird jelly substance.