Everything you need to scour cellulose fibres. 60ml of Synthrapol & 500g Soda Ash. This combination will prepare your fibre to accept the dye most readily. Synthrapol is a non-ionic a soap that is used for scouring (pre washing of your cloth to remove any barriers that may lead to uneven dyeing) and to remove excess dye and prevent it from redepositing on the fabric. This helps in achieving clearer, more consistent colours and prevents dye bleeding during the wash process. Soda Ash is the common name for Sodium Carbonate Na2(CO3). Sodium carbonate is used to scour cloth, as an alkali, and as part of the mordant process for cellulose fibres. We sell anhydrous sodium carbonate (soda ash), which is twice the strength by weigh of hydrated sodium carbonate (washing soda). Most dye recipes are formulated for soda ash not washing soda. Instructions for use here - Scouring
