Blacks for shibori
I have made a few posts (i, ii, iii, iv) about using a black dye to get black and white shibori. You want a true, deep black and white (determined by the whitness of the cloth you are dyeing) and of course, shades of grey. What you don't want is shades of blue or pink or halos of purple--that is any color. There have been success and failure; not an easy task to get B&W.
Fiber influences your chance of success; both Neki and I have achieved it on silk. My failures have been on cotton.
The dye also effects the outcome; we had success with Lanaset Black and Dylon Ebony Black. Now Lanaset is an acid dye and acid dye families usually have a black manufactured color (not a mixture of other colored dyes) . The Lanaset one is a true black,some from other acid dye families have a cast, say purple for example. So the Lanaset one is special. There are probably other true black acid dyes that I don't know, there are a lot of acid dyes. Now fiber reactive dyes, commonly used for cotton, do not usually have a black manufactured color and the black is mixed from navy, gold and red. The mixed black then separates during shibori, rather like chomotography, leading to colored halos. The mixed fiber reactive black might be beautiful in an immersion dyebath, or in direct application but they give us trouble in shibori. But there tend to be several mixed blacks and each may be designed for a specfic application process; the pad-batch black might be different than a immersion bath black. Fiber reactive dyes also work on silk (standard processing) and so you might find a silk black and a cotton black (here there are 8 blacks/greys for the old fiber reactive dyes, Procion MX).
While I was out buying notions to finish up the outfits for Artwear in Motion I saw some Dylon dye, black that had worked so well for Neki. So I am now the proud owner of 1.75 oz. of #12 black. From the package I learned it contains trisodium phosphate and reactive black 5. I suspect that this means it contains one dye that is black, not a muixture of dyes. I can't wait to try it on cotton!
Comments
Posted by: neki | September 25, 2006 04:13 AM
Posted by: Llewellyn Kouba | January 27, 2007 04:34 PM
Posted by: Sheryl Schwyhart | February 25, 2007 04:57 PM