RN C.I. Vat Brown 3 R Vat Dyes CAS 131-92-0 Dark brown powder

Vat dyes vat brown RN C.I. vat brown 3 CAS 131-92-0 vat brown R

Product Name: C.I.Vat brown 3; Vat brown RN; Vat Brown R (C.I.69015);C.I.69015; C.I.Pigment Brown 28

Chemical Structure:

Molecular Formula:C₄₂H₂₃N₃O₆

CAS: 131-92-0

Properties:

Vat brown RN is dark brown powder, insoluble in water, slightly soluble in xylene. It is dark wine red in concentrated sulfuric acid and produces reddish brown flocculent precipitation after dilution. It is red light brown in alkaline solution of insurance powder and yellow light brown in acidic solution.

Application:

Vat Brown R is mainly used for dyeing cotton fiber, with good levelness and affinity. It is also used for dyeing polyester cotton, polyester viscose, Uygur cotton and other blended fabrics, with slight staining of polyester components. It can also be used in two bath dyeing. It can also be combined with Vat Brown G, Vat Brown GG and Vat Brown BR to dye brown with different light and dark colors. It is also used to prepare organic pigments.

 

Shade card:

Shade	Dyeing method	Dyeing depth	Light fastness (Xenon)	Water spotting (immediately)	Level dyeing property
	IW	35g/l	6-7	4-5	Very good

 

IW dyeing process:

Optimun dyeing temperature: 45°C; Alkalinity of bath: medium; Electrolyte addition: yes; Remarks: medium affinity.

 

Storage:

It should be stored in a cool, dry and ventilated place to prevent moisture and heat.