This is something I have wanted to try a while. I have seen bleach stamping done on colored cardstock and wanted to see how it would look on fabric. The results were fun and different.
Step 1: Materials
Foam and/or rubber stamps
Piece of cardboard the size of your sweatshirt
An old towel
Step 2: Preparing to Stamp
Preparing the stamp pad
Fold the papertowel to fit in the plastic bowl. It should be 6 to 8 layers. Place in bowl and dampen with bleach. Set down the old towel for your workspace and place bowl at corner. Make sure to work in a well ventilated area.
Preparing the sweatshirt
Place the cardboard in the sweatshirt. Place on a flat surface to work.
Step 3: Stamping
Stamp the sweatshirt to your liking. Use stamps with larger details, these will stamp better. Stamps with fine details my lose those details when stamping.
The bleach will not be visible on the stamp or at first on the sweatshirt. The sweatshirt will begin to process the bleach and the design will begin to show. The color that develops will contrast the original color of the sweatshirt. You can do a test dot of bleach on the inside of the sweatshirt, if you wish to see the final color result.
Once you are done stamping, let the garment dry and develop.
Step 4: Finishing Your Garment.
Once bleach has dried, wash the sweatshirt by hand or in a washing machine, to get rid of any excess bleach.
Dry and enjoy!!