Copper, cresol-1,5-dinitronaphthalene-sodium polysulfide reaction products complexes, leuco derivs.

To 138 parts of??1,5-Dinitronaphthalene?and 75 parts of ?the?coarse Cresol mixture with Sodium polysulfide in Copper sulfate monohydrate and Sodium chloride presence, in 265 ℃ calcination 12 ~ 14 hours. 1, 5 – dinitrobenzene before roasting in Sodium polysulfide available in 90 ℃ reduction (BIOS 1155, 12).

dark brown.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Soaping
						Moderate	Severe
ISO	4-5	4	5-6	4	4-5	4	2-3