Mordant - Calcium Carbonate

Calcium Carbonate is a naturally occurring compound commonly used in natural dyeing as a mild mordant and pH modifier. Found as the active component in agricultural lime and formed naturally in hard water, it plays a useful role in helping fibres absorb and develop colour.

In dyeing, calcium carbonate can assist with increasing dye uptake, allowing certain natural dyes to bond more effectively with the fibre. It can also subtly influence the dye bath environment, supporting improved yield and more consistent results.

Gentler than stronger alkaline agents, it is particularly useful where a softer adjustment to the dye process is needed, making it a helpful addition to both traditional and experimental natural dye work.

Benefits

• Helps improve dye uptake and colour yield
• Acts as a mild mordant and pH modifier
• Supports more consistent natural dye results
• Gentle alternative to stronger alkaline additives

Perfect For

• Natural dyeing processes requiring improved colour uptake
• Working with dyes that benefit from mild alkalinity
• Textile studios and experimental dye work