Acid Orange
Acid Orange is a premium quality dye solution designed for industrial and textile applications. With over two decades of proven performance, this vibrant orange dye delivers exceptional colorfastness and durability across various materials.
Product Specifications
- Chemical Name: Acid Orange 7
- CAS Number: 633-96-5
- Molecular Formula: C16H11N2NaO4S
- Appearance: Orange to red powder
- Solubility: Easily soluble in water
- pH Value: 6.5-7.5 (1% solution)
- Lightfastness: 5-6 (ISO 105-B02)
- Washfastness: 4-5 (ISO 105-C06)
Technical Parameters
| Parameter | Value | Test Method |
|---|---|---|
| Dye Content | ≥90% | Spectrophotometry |
| Moisture Content | ≤5% | Karl Fischer |
| Water Insoluble Matter | ≤0.5% | Filtration |
| Absorption Maximum | 490-495nm | UV-Vis |
| Storage Temperature | 5-30°C | - |
Acid Orange Applications
Acid Orange is primarily used in:
- Wool dyeing and printing
- Silk coloration
- Nylon fabric treatment
- Paper coloring
- Leather finishing
- Ink manufacturing
Acid Orange FAQ
What is the recommended dyeing temperature for Acid Orange?
The optimal dyeing temperature for Acid Orange ranges between 85-95°C for wool and silk applications. For nylon substrates, maintain temperature at 95-98°C. Always use a controlled heating rate of 1-2°C per minute to ensure even dye distribution.
How does pH affect Acid Orange dye performance?
Acid Orange demonstrates best color yield in slightly acidic conditions (pH 4-5). Below pH 3, there may be excessive aggregation, while above pH 6, dye exhaustion decreases significantly. Use citric acid or acetic acid for pH adjustment during dyeing processes.
What safety precautions should be taken when handling Acid Orange?
Wear appropriate PPE including chemical-resistant gloves, safety goggles, and dust masks. Avoid inhalation of powder and prevent skin contact. Store in original containers away from oxidizing agents. In case of eye contact, rinse immediately with plenty of water for at least 15 minutes and seek medical attention.
Packaging Options
| Package Type | Weight | Dimensions |
|---|---|---|
| Plastic Bottles | 1kg | 10×10×15cm |
| HDPE Drums | 25kg | 40×40×60cm |
| Fiber Drums | 50kg | 50×50×70cm |
More Acid Orange FAQ
Can Acid Orange be mixed with other acid dyes?
Yes, Acid Orange is compatible with most acid dyes. However, conduct small-scale compatibility tests first. Recommended mixing ratios shouldn't exceed 3:1 with other colors. Maintain the total dye concentration below 5% of the fabric weight for optimal results.
What is the shelf life of Acid Orange?
Properly stored Acid Orange maintains its quality for 36 months from manufacturing date. Keep containers tightly sealed in cool, dry conditions away from direct sunlight. Discard if any color changes or unusual odors develop.
How to achieve different shades with Acid Orange?
Shade variations can be achieved by adjusting concentration (0.1-5% owf), dyeing time (30-90 minutes), and temperature profile. For pastel shades, use 0.1-1% concentration with shorter dyeing times. Deep shades require 3-5% concentration with extended dyeing periods and proper aftertreatment.