PROCESS FOR DYEING PRODUCTS OR FABRICS

Fecha de publicación: 04/08/2022
Fuente: WIPO "hemp"
Process for dyeing products or fabrics, comprising the following phases: • at least one cleaning phase, wherein the product or fabric to be dyed is cleaned by means of a treatment with pressurized ozone; at least one dyeing phase, wherein the product or fabric is dyed; • at least one finishing phase for finishing the dye on the dyed product or fabric. Said at least one dyeing phase comprises a step of preparing a dyeing bath. The dyeing bath comprises: at least one natural dye of vegetable or animal origin; water at a temperature of 12°C to 20°C; at least one natural resin, preferably of tree origin, suitably dispersed in the aqueous solution; citrus fruit concentrate, suitable for use as a fixative agent; rosemary essential oil, suitable for use as an anti-fermentation and anti-oxidant agent; Indian hemp pectin, suitable for use as a suspending agent; and sodium bicarbonate.