Newly Arrival China Nigrosine Black Oil Soluble Black Dye for Leather

Our eternal pursuits are the attitude of “regard the market, regard the custom, regard the science” and the theory of “quality the basic, trust the first and administration the advanced” for Newly Arrival China Nigrosine Black Oil Soluble Black Dye for Leather, Since the manufacturing unit founded, we have now committed into the progress of new goods. Along with the social and economic pace, we’ll continue to carry forward the spirit of “high excellent, efficiency, innovation, integrity”, and stay with the operating principle of “credit initially, customer 1st, good quality excellent”. We’ll produce a excellent foreseeable future in hair output with our companions.
Our eternal pursuits are the attitude of “regard the market, regard the custom, regard the science” and the theory of “quality the basic, trust the first and administration the advanced” for China Oil Soluble Black Dye, Nigrosine Black Dye, we’ve been sincerely hope to establish one good long term business relationship with your esteemed company thought this opportunity, based on equal, mutual beneficial and win win business from now till the future.

Color Shade	Product Name	Content	Dyeing Depth （%o.w.f）	Fastness Properties(Change of Shade)
				Light	Washing 40℃	Hot Pressing 180℃	Perspiration	Rubbing (Dry)	Rubbing (Wet)
	Acid Nigrosine	100%	4.0	5	4	4-5	4	3-4	2-3

Synonyms: C.I. Acid Black 2; Nigrosine; C.I. 50420; Nigrosin water soluble; nigrosin cell culture tested; Nigrosin Acid black; Acid Black 5 (50420); Nigrosin; Nigrosine Water Soluble
Property of Acid Nigrosine:
Appearance: black shining crystal.
Maximum wavelength(λmax): 570nm

Soluble in water is blue purple.Soluble in ethanol is blue.The dye is blue in concentrated sulfuric acid.It will be purple when diluted and precipitated.The precipitate is dark purple when sodium hydroxide is added in water solution.

Application:It is mainly used for leather dyeing (generally by chrome mordant). It is also suitable for dyeing paper, wood, soap, electrochemized aluminum and wool and silk fabrics and also can be used for ink making.

 Specifications:

Storage:store in a cool and ventilated room.
Quality guarantee period: 36 months.
Packing: 25kgs iron drum/paper carton.Our eternal pursuits are the attitude of “regard the market, regard the custom, regard the science” and the theory of “quality the basic, trust the first and administration the advanced” for Newly Arrival China Nigrosine Black Oil Soluble Black Dye for Leather, Since the manufacturing unit founded, we have now committed into the progress of new goods. Along with the social and economic pace, we’ll continue to carry forward the spirit of “high excellent, efficiency, innovation, integrity”, and stay with the operating principle of “credit initially, customer 1st, good quality excellent”. We’ll produce a excellent foreseeable future in hair output with our companions.
Newly Arrival China Oil Soluble Black Dye, Nigrosine Black Dye, we’ve been sincerely hope to establish one good long term business relationship with your esteemed company thought this opportunity, based on equal, mutual beneficial and win win business from now till the future.