Archive for September, 2015

Navy Blue and Forest Green

September 24, 2015

A couple of years ago, there was an article in Spin-off Magazine about some extract dyes from a company in India; Sams’ Vegetable Dyes.  Two of them were said to be extracted from indigo.  The extraction method is proprietary but as oxalic acid is listed on the dyes; presumably it is similar to that used for saxon blue with sulfuric acid.

I experimented with the dyes on wool (10-12%) weight of goods.  The yarns are mordanted.  The smaller skeins at 10% wog potassium alum sulfate; the larger skeins with 20% potassium alum sulfate and 5 % cream of tartar.  The reason for the difference in mordanting is the subject of another post but the wools are different; test wool skeins versus cormo wool and require different mordanting strategies.

I did not add anything other than the dye to the pots.

Navy blue and forest green text wool skeins

Navy blue and forest green text wool skeins

IMG_0877

Navy blue on cormo

IMG_0876

Forest green on cormo (still wet) 12.5% wog

IMG_0867

A comparison between the navy blue and caribbean ( the latter was painted so a bit light).

Advertisements