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The chemical resist process allows you to control background coloring
of printing (and other methods of direct application) without the need
for additional silk-screens and without color overlays. The process takes
advantage of differing reactivity levels of Remazol and Cibacron F reactive
dyes (similar results can be obtained with Remazol and Procion MX reactive
dyes). Since some colors of dye work more effectively with this process than
others, thorough testing is necessary in order to achieve predictable results.
Chemical Resist Agent
The amount of chemical resist agent needed in the reactive dyes is
dependent upon the strength of Remazol dyes which will be applied over
the reactive dyes (see chart).
Dye Activator Options
This process works best with soda ash as the activator in the reactive dye
pastes and fixing agent FRP as the activator in the Remazol dye pastes. (It
will work with baking soda as the activator for the Remazol, but not always
reliable. It will also work with the soda soak/batching method for fixing the dyes.)
Remazol Over Reactive Dyes
- Mix reactive dye pastes, using the appropriate amount of chemical resist
agent (depending on the strength of the Remazol you intend to use) and soda ash
(unless you have soda soaked the fabric first). Refer to the chart for quantities
of chemical resist agent and soda ash.
- Apply reactive dyes and allow them to dry naturally. (Batch in plastic if using
the soda soak/batching method of activation.)
- Mix thick Remazol dye pastes, using the appropriate amount of dye activator
(see chart).
- Roll or squeegee Remazol dye(s) over the dry reactives.
- Allow dyes to dry naturally (unless using the soda soak/batching method for
fixing the dyes).
- Unless you have used fixing agent FRP as the Remazol dye activator, you must
steam the fabric within 1 day of applying the Remazol dyes in order for the chemical
resist process to work. That timing is not necessary with FRP as the dye activator,
because FRP does not begin fixing the dye to the fabric until it is steamed
- Wrap fabric in paper, tie, and steam for 8-12 minutes.
- Wash out excess dye and then boil the fabric for minutes to achieve the full
chemical resist effect. Use a drop of Synthrapol in the rinse water and in the water
to be boiled.
- The halos which occur around reactive dye areas will be more or less apparent,
depending on the amount of chemical resist agent used as well as on the strength and
thickness of Remazol used.
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