Use washed and ironed fabric. Moisten the fabric with a spray bottle or something similar.
Fold the fabric accordion-style. Smooth it well and make the creases as sharp as possible.
Now fold the folded fabric strip like an accordion again, but the other way. Smooth the fabric and make the sharpest, most precise folds possible, until you have a folded square fabric bundle.
Squeeze the fabric bundle together between two pieces of wood, with a little bit of fabric sticking out on the sides. Use a sturdy clip or screw clamp to squeeze the bundle together as tightly as possible.
Drip fabric dye on the edges of the fabric with a pipette. Wear gloves and squeeze the fabric with your hands to help distribute the paint.
For pastel results: unfold the fabric and rinse it almost immediately after applying the dye. Hang up to dry.
For a darker colour and more distinct pattern: unfold the fabric after a few minutes and hang to dry.
Fix the dye by ironing on the cotton setting (without steam) for 5 minutes or by heating in the oven at 150°C for 5 minutes. Make sure the fabric is not touching the ovens heating elements.
The Japanese shibori dyeing technique allows you to create beautiful resist-dye patterns by folding fabric instead of tying it with string. Japanese resist dyeing requires a bit more precision, but thin watercolour fabric dye makes it easy to achieve the shibori effect. Dye ordinary white cotton fabric or old sheets. Then you can make beautiful cushion covers, bags, quilts and other interior decor details with shibori patterns. You can also try dyeing kitchen towels to make a classic checked towel with a fresh twist.