Message: [Can any] supplier GUARANTEE without a disclaimer that black raw silk (or silk noil) yardage will for sure discharge into beige/brown tones depending on the amount of discharge paste used and how long the iron is put on the fabric and the heat of course.

I have never heard of a company doing this. Overseas suppliers tend to change dye without warning, so that an easily dischargeable product is unexpectedly replaced by one which cannot be discharged satisfactorily. They seem to think that one dye is the same as another, even when the properties vary markedly, just so long as the colors are the same. The only way around this problem is to find someone to dye your goods for you with a certain specific dye or dye mixture, with the promise to always use that same dye, or to do this yourself, in a washing machine.

I have recently worked with Dharma Trading and with Rupert, Gibbon and Spider and they both have a disclaimer on the black raw silk they sell saying that they do not guarantee that the silk will discharge.

Yes, that's the way it always works. I am sure that both companies would love to have a sufficiently reliable supplier that they could guarantee dischargeability! The only things I've seen anywhere guaranteed to discharge are the black t-shirts sold by Dharma.

I am hoping that you can give me a supplier and some info on this issue!

I'm sorry that I cannot help. This is a very frustrating problem.

Your discharged scarves are very nice.