High quality leather dyeing Factory Supplier Direct Red 31
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- Supplier: HANGZHOU EMPEROR CHEMICAL CO. LTD
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Product Overview
Description
Product Description
Product Name: Direct Red 31
C.I. No.: 29100
CAS No.: 5001-72-9
Molecular Formula: C32H21N5Na2O8S2
Molecular Weight: 713.65
Relative Name:
Direct Red 12B,Direct Fast Pink,Direct Pink 12B,Direct Pink 5B.
Shade: colourful red blue light. Red brown powder
Direct Red 31 Physical Properties and light fastness, solubility.
| Direct Red 31 | |
| Dyeing depth % | 2 |
| Insolubles % | 0.15 |
| Light Fastness | 2 |
| Washing Fatness | 3 |
| Rubbing fastness(dry) | 4-5 |
| Rubbing fastness(wet) | 2 |
Direct Red 31 Properties and Applications:
Soluble in water for product red solution, the solubility of 45 g/L (80 ºC), also can dissolve in fiber element solution, slightly soluble in alcohol for red orange, insoluble in other organic solvents. The strong sulfuric acid in orange to red light for brown, diluted dark blue light red precipitate generated; In nitric acid solution for orange brown, precipitation. The dye solution to generate strong hydrochloric acid purplish red precipitate; Add thick sodium hydroxide solution for orange brown. Copper ions in dyeing dim light; Iron ion in micro have change. Mainly used in viscose, such as cotton, silk, polyamide fiber cellulose fiber and viscose/silk blended fabric dyeing, can be used for pulp shading.
Package, 25KG/DRUM, CARTON BOX, BAG
Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.
Company Information
FAQ
Q1. How can I get the samples for testing? |
A: 1.We can provide a certain quantity of free samples. Please give the specific CAS or CI NO. of the product and we will give you the sample based on our standard.
2.You can send your samples to our office and we will send back the copy samples for you. It’s a more efficient way. |
Q2. How can I get the price of needed products? |
A: 1. Please give the exactly CAS or CI Number, quantity, packing, destination port or specs requirements. We can according to your exact requirements to give you the price.
2.You can send us a sample, we can according to your sample give you a counter sample and price. |
Q3. I don’t know whether your product can be available, how can I order this from you? |
A: It’s the best way if you can send us a sample, so we can according to your samples give you a counter sample for checking the quality. Also we will quote a price for you to check the cost. After confirming all of this, you can contact our sales for an order. |
Q4. I am a small wholesaler, do you accept small order? |
A: It’s no problem if you are a small wholesale, we would like to grow up with you together. |
Q5. How to use the product? |
A: We are pleased to be requested the application methods from you and we will use words and videos to tell how to use. We also have application engineers can provide onsite service for you customers. |
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Q6. Can you make OEM service of your products? |
A: Yes. We can accept OEM service. Also we have provided OEM service to lots of big and famous companies in the order. |
Q7. How can you ensure the quality to us? |
A: 1. Quality is the foundation of our company,we have been engaging in this field for more than 20 years. Superior quality brings us the benefits and gives us the vitality.
2. The bulk production is the same quality as the confirmed sample we provide to you for testing before the order.
3.If you still have doubt, you can request the third part company, such as SGS, to inspect and test the bulk cargo before shipment (you should bear the inspection expense).
If you want to konw more details,Please contact with my WhatsApp:+8618372499090 |
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