Which Dupont dye color is a true black?

Name: Suzanne

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Message: Which Dupont dye color is a true black?

Of the H. Dupont Silk Dyes, number 700 Noir is listed as True Black. It is also the black listed among the recommendations for primaries for color mixing.

Unfortunately, the company that manufactures Dupont Silk Dyes is undergoing reorganization. They have discontinued some colors, while they have failed to ship others which they will eventually start to ship again. 700 Noir is among that that Dharma Trading Company does not have in stock now, as of this writing. Surely as basic a color as 700 Noir will not have been discontinued, so Dharma should be able to have it in stock again in the future.

I wonder how their 2019 Noir Concentre compares to the 700 Noir. Dharma does have it in stock. It would be worth testing. The only alternative I know would be to try ordering from one of the firms in Europe that stock H. Dupont dyes, or the California importer Atelier De Paris, hoping that they might still have some in stock from before the reorganization began.

Note that the primaries recommended for mixing your own colors are 393 Canari or 330 Helianthe for yellow; 474 Camelia and 390 Cerisette for red; 108 Bleu Roy or 314 Limoges for blue; and 700 Noir for black.

By the way, here's a link to an old Dye Forum post on "what's in the French silk dyes?". The answer is a little surprising. Not all are basic dyes or acid dyes; some contain reactive dyes or metal complex dyes.

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Posted: Friday - November 18, 2011 at 07:17 AM

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Which Dupont dye color is a true black?

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