Finding natural ways to dye or paint the fabric wasn’t been easy. I am interested on natural source pigments and I have been researching on ways to make its color last on fabric. As pigments are not dyes, they cannot penetrate and bond molecularly with fiber by itself.
However, there are mediums that help with this process, and this is what led me to homemade soymilk. Concentrated soybean liquid is used in Japanese traditional pigment dyeing as a thinner and binder for many pigments. First the fabric is pre-treated by diping it in the soymilk and leaving it to air dry. Then the ink is made by mixing the pigments with the soymilk and a thickener.