Acid Violet
Acid Violet: The Premium Dye Solution for Textile Industry
Acid Violet is a high-quality acid dye specially formulated for dyeing protein fibers like wool, silk, and nylon. With its excellent color fastness and brilliant violet shade, Acid Violet has become the preferred choice for textile manufacturers worldwide.
Technical Specifications of Acid Violet
- Chemical Name: Acid Violet 49
- CAS Number: 1694-09-3
- Color Index: 42640
- Molecular Weight: 561.55 g/mol
- Appearance: Dark violet powder
- Solubility: Soluble in water (50 g/L at 20°C)
- pH Range: 2-6 (optimal at pH 4-5)
| Property | Value | Test Method |
|---|---|---|
| Light Fastness | 5-6 (ISO 105-B02) | Standard textile testing |
| Wash Fastness | 4-5 (ISO 105-C06) | AATCC Test Method 61 |
| Rub Fastness | 4 (Dry), 3 (Wet) | ISO 105-X12 |
| Heat Resistance | Up to 180°C | ASTM D2859 |
Applications of Acid Violet
Acid Violet is primarily used in:
- Wool dyeing for apparel and carpets
- Silk dyeing for luxury fabrics
- Nylon dyeing for hosiery and sportswear
- Leather coloring for fashion accessories
- Ink formulations for special printing applications
The versatility of Acid Violet makes it suitable for both batch and continuous dyeing processes. When properly applied, Acid Violet produces consistent, reproducible shades with excellent leveling properties.
Key Benefits of Acid Violet
- Exceptional color purity and brightness
- Superior exhaustion rate (>90% under optimal conditions)
- Excellent compatibility with other acid dyes
- Minimal environmental impact (meets REACH compliance)
- Stable performance across different water hardness levels
Acid Violet FAQ
What is the recommended dyeing temperature for Acid Violet?
The optimal dyeing temperature for Acid Violet is between 85-95°C. This temperature range ensures maximum dye exhaustion while maintaining fiber integrity. For delicate fibers like silk, we recommend starting at 60°C and gradually increasing to 85°C over 30 minutes.
How does Acid Violet perform in terms of color fastness?
Acid Violet demonstrates excellent fastness properties: light fastness of 5-6, wash fastness of 4-5, and rub fastness of 4 (dry) and 3 (wet). These ratings make it suitable for applications requiring durable coloration. For improved wet fastness, we recommend after-treatment with cationic fixing agents.
Can Acid Violet be used for polyamide fibers other than nylon?
Yes, Acid Violet is effective on all polyamide fibers including nylon 6, nylon 66, and aramid fibers. However, dye uptake may vary depending on the specific fiber type. For best results on aramid fibers, we suggest using a carrier system at higher temperatures (100-110°C).
Handling and Safety Information
When working with Acid Violet, always follow standard safety precautions:
- Wear protective gloves and eye protection
- Avoid inhalation of dust
- Store in a cool, dry place away from direct sunlight
- Keep containers tightly closed when not in use
Acid Violet is classified as non-hazardous under normal conditions of use, but proper industrial hygiene practices should always be maintained.
Packaging Options
Acid Violet is available in various packaging options:
- 1kg polyethylene bags
- 25kg fiber drums with polyethylene liners
- Custom packaging available for bulk orders