Actually my mistake, the Xylene is strong, so you should be able to do it quickly (so it works for mass production... never tried it though). It works best on a very closely woven fabric like satin. There are 'blender pens' which come with this chemical and can be used the same way; and it also comes in a package called "goof off". You need a mask/respirator if you're going to be using it for a long time because of the rumes
Citrasolve is a household cleaner, so it's not toxic
And Acetone is basically the stuff you use to remove nail polish
All the explanation is in the link I posted
and I think one works for B/W print outs while others can be used for both B/W and colour
Other thing is to use something called the
Versa-tool
It's like a soldering iron, which you can change the tip of (sharp point tip, flat dime-shaped tip, etc.)
You use the dime-shaped one.. and working on a hard surface, you burnish a print (laser copy/print) of your image with it onto the fabric. Best to practice first with this since it gets hot and you can burn the fabric a bit on the first try
This one definitely takes longer...
Probably silkscreen is best
It's not very expensive at all...
You can even use fabric paint
There are some good tips here on paint and stenciling
http://www.stencilrevolution.com/