The Bleach Thickener is designed to be used with bleach to produce a thickened paste which can be applied to fabric in order to remove color. The paste can be painted or printed onto the fabric. The thickener remains stable in bleach for 24 to 36 hours. The bleach thickener is for use on cellulose fibers such as cotton, linen, and rayon. Not recommended for protein fibers such as wool and silk.
Adjust thickener amounts above for desired consistency. Bleach can be added up to 50%. Always add the thickener to the bleach, not vise verse. Mix until smooth. A small wire whisk works well. Be careful not to splash! Water can also be added to thin the consistency or to slow the reaction for some reason.
Paint or print this mixture onto fabric that has been previously dyed. Leave to dry. The longer that the mixture is left on the fabric and the thicker the application of the bleach paste, the more dye that will be removed. However do not leave on for several hours as the bleach may weaken the fabric. Once dry or discharged to taste, rinse, then soak in Bleach Stop or something to deactivate the bleach, then wash fabric to remove thickener.
When using the bleach thickener on dyed fabrics you will find various results depending on the type of dye and color that is chosen for the background. We recommend our Procion MX dyes for cellulose fibers. Many dyes will not discharge to a white but rather to a lighter version of the same color and sometimes to another color entirely. Some colors and dye types will not discharge at all or very little. Results may vary. A little experimenting is required! The chart below is old information that we found, but formulas or MX colors have changed over the years and results may differ.
Lemon Yellow #1 discharges to light yellow
Rust Orange #8 discharges to light rust orange
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