Ritan Direct Black 38 Direct Black Ex Cotton Textile Paper Direct Dye

• CAS No.: 1937-37-7
• Formula: C34h25n9na2o7s2
• EINECS: 217-710-3
• Model NO.: Direct Black EX
• Colour: Black
• Appearance: Powder
• Usage: Textile, Paper
• Application Material: Paper/ Textile
• Name: Direct Black 38
• Content: 100%/150%
• Type: Direct Black Ex
• Chemical Construction: C34h25n9na2o7s2
• C.I.No.: Direct Black 38
• Product Name: Direct Black 38
• Style: Black
• Use: Paper/ Textile
• C.I. Number: Direct Black 38
• Types: Direct Dye
• Transport Package: Cardboard Box
• Specification: Customizable
• Trademark: RITAN
• Origin: China
• HS Code: 32041400
• Production Capacity: 500tons/Year
• Package Size: 5.00cm * 5.00cm * 6.00cm
• Package Gross Weight: 0.030kg

Product Description

Product Name:	Direct Black EX
Trade Name:	Direct Black 38
Cas No.:	1937-37-7
Molecular Formula:	C34H25N9Na2O7S2
Molecular Weight:	781.73

Direct Black 38
Shade:Black Palm Powder
Relative name:Direct Black BN,Direct Black BX,Direct Black EX,Direct Black RN,Direct Black BRN
Direct Black 38 Physical Properties and light fastness, solubility:

Product Name	Direct Black 38
Appearance	Black Powder
Test Method	AATCC	ISO
Acid Resistance	3	3
Alkali Resistance	3	3
Ironing	4	4
Light	4-5	3
Soaping	3	2
Water Resistance	2	2-3

 

 

Direct Black 3 USE:Direct Grey GL is  mainly used for cotton, silk, leather, paper, wood coloring

Hanazhou Ritan Chemical Co., Ltd. was founded in Year 2009, we have engaged in dyestuf industry for more than 13years.The company located in Hangzhou city, Zhejiang Province.we specializing in the production and trade of dyestuff.
With leading manufacturing method, complete facilities and experienced technicians, we sincerely welcome your visit!
At present, we mainly produce and sale the Vat dyes,Disperse Dyes, Basic dyes, Acid dyes and optical brightener.
Doing business honestly, we takes "credit first, customer's satisfactions" as service tenet, "quality supreme, quality guarantee" as manu facturing standards and "good price, complete products groups" as sales criterion. We are not only working hard to develop new products, but aiso Keeping accumulating products advantages through cooperating with quallfied manufacturers in China. Now, our products are well sold in The Asia, North America, South America, Africa and countries of Europe, and customers are highly satisfed with our products for excellent performances.
We are looking forward to cooperating with you in the near future.

1.Can you provide free samples?
-Yes, we can provide free samples for your testing.
Normally we provide 20-30grams each

2.How about the courier charge?
- The courier charge will be afforded by the buyer.
When the trial order confirmed, we will return back the courier charge.

3. How long to deliver the cargo?
-The cargo be delivered in 7-10days since the order be confirmed.

4.What is the payment term?
We accept the following payment term:
1.50%T/T in advance, the left 50% be remitted once the BL copy provdied.
2.L/C at sight

5.How to control the quality?
We have facotry standard of each item.
We provided free samples, once you confirmed the sample quality, the order will be the same quality as the sample.