Zibo Hongwei Industry Co., Ltd.

Direct Dyes, Direct Black Ex, Reactive Dye manufacturer / supplier in China, offering Direct Black Ex / Direct Black 38, Acid Cellulase, Neutral Cellulase, Acid Cellulase Enzyme, Textile Enzyme and so on.

Supplier Homepage Product List direct dyes Direct Black Ex / Direct Black 38

Direct Black Ex / Direct Black 38

FOB Price:US $2 / kg
Min. Order (Pieces) FOB Price
300+ US $2 / kg
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Min. Order: 300 Pieces
Production Capacity: 5000mt/Mon
Transport Package: 25kg/Drum
Payment Terms: L/C, T/T, D/P

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Basic Info.

Model NO.:100%
Colour:Black
Appearance:Powder
Usage:Paper, Ink, Leather, Textile
Trademark:hongwei
Origin:Shandong

Product Description

Specifications

1 Product name Direct black EX
2 CAS No. 1937-37-7
3 MF C34H25N9Na2O7S2
4 Molecular Formula 781.72
5 Strength 100% 150%

Product name

Direct black EX

CAS No.

1937-37-7

MF

C34H25N9Na2O7S2

Molecular Formula

 

781.72

Strength

100% 150% 160%

solubility in water

40g/L (85°C)

Washing

3

Perspiration (Acid)

3-4

Perspiration (Alkaline)

3-4

Rubbing (Dry)

3

Rubbing (Wet)

1-2

Iron

3-4

Light

3

Deep black color when dyeing for cotton and viscose fiber, which is much better than Direct Black G; it can be also used for cotton, viscose printing, natural silk, nylon and blended spinning fabrics dyeing; widely used for leather, wood, plastics and black inks.
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Zibo Hongwei Industry Co., Ltd.

- Shandong, China
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