Disperse Orange
Disperse Orange: The Ultimate Dye Solution for Textile Industry
Disperse Orange is a high-quality synthetic dye specifically formulated for polyester and other synthetic fibers. As a leading manufacturer with decades of experience in textile dyes, we take pride in offering Disperse Orange with exceptional color fastness, brilliant shade, and excellent dispersion properties.
Key Features of Disperse Orange
- Brilliant orange shade with excellent color purity
- Superior wash and light fastness properties
- Excellent migration and leveling characteristics
- High tinctorial strength for economical usage
- Free from restricted amines and heavy metals
- Stable performance under various dyeing conditions
Technical Specifications
| Parameter | Specification |
|---|---|
| Chemical Class | Disperse dye (Anthraquinone based) |
| C.I. Generic Name | Disperse Orange 25 |
| CAS Number | 31482-56-1 |
| Appearance | Orange powder |
| Strength (%) | 100% Standard |
| Solubility | Dispersible in water |
| pH Value (1% solution) | 6.0-7.5 |
| Storage Stability | 24 months in original packaging |
Disperse Orange FAQ
What is the recommended dyeing temperature for Disperse Orange?
The optimal dyeing temperature for Disperse Orange is 130°C (266°F) for polyester fibers. This temperature ensures proper dye penetration and maximum color yield. For delicate polyester fabrics or blends, the temperature can be reduced to 120°C (248°F) with appropriate leveling agents.
How does Disperse Orange perform in wash fastness tests?
Disperse Orange demonstrates excellent wash fastness properties. In standard ISO 105-C06 testing (60°C), it achieves a rating of 4-5 on the gray scale for color change and 4 for staining. For higher temperature washes (95°C), the rating remains at 3-4 for color change, making it suitable for demanding textile applications.
Can Disperse Orange be used for digital printing applications?
Yes, Disperse Orange can be specially processed for digital printing applications. Our technical team can prepare a printing paste version with optimized particle size distribution (0.5-1.5 microns) and appropriate dispersing agents for inkjet printers. The printed fabric requires steam fixation at 170-180°C for 8-10 minutes for maximum color development.
Dyeing Process Parameters
| Parameter | Range |
|---|---|
| Dye Concentration | 0.1-5.0% (owf) |
| pH Range | 4.5-5.5 (acetic acid recommended) |
| Liquor Ratio | 1:5 to 1:20 |
| Time at Temperature | 30-45 minutes |
| Reduction Clearing | Recommended for deep shades |
Quality Control Parameters
- Spectrophotometric color matching (ΔE ≤ 0.8 against standard)
- Particle size distribution (90% below 2 microns)
- Dust content (≤ 1% by weight)
- Moisture content (≤ 5% by Karl Fischer method)
- Heavy metal content (below 50 ppm for each restricted metal)
Disperse Orange FAQ (Continued)
What safety precautions should be taken when handling Disperse Orange?
While Disperse Orange is classified as non-hazardous according to GHS standards, we recommend using standard PPE including dust mask, gloves, and safety goggles when handling the powder. Ensure good ventilation in working areas and avoid creating dust clouds. In case of eye contact, rinse immediately with plenty of water for at least 15 minutes.
How does Disperse Orange compare to similar dyes in terms of sublimation fastness?
Disperse Orange exhibits superior sublimation fastness compared to many conventional disperse dyes. In ISO 105-P01 testing (180°C for 30 seconds), it achieves a rating of 4-5, making it particularly suitable for polyester fabrics that undergo heat setting or thermal transfer processes.
What is the shelf life of Disperse Orange and how should it be stored?
Disperse Orange has a shelf life of 24 months when stored in its original packaging at temperatures below 30°C (86°F) and relative humidity below 65%. The product should be kept away from direct sunlight and moisture. Once opened, containers should be tightly resealed after each use to maintain product quality.
Compatibility with Other Dyes
Disperse Orange shows excellent compatibility with most disperse dyes in trichromatic combinations. For optimal results in combination dyeing, we recommend using with:
| Recommended Combination | Application |
|---|---|
| Disperse Yellow 54 + Disperse Orange + Disperse Red 60 | Standard trichromatic for polyester |
| Disperse Orange + Disperse Blue 56 | Brown and earth tone shades |
| Disperse Orange + Disperse Violet 26 | Deep red and burgundy shades |
Environmental and Regulatory Information
- Complies with OEKO-TEX Standard 100 Class II requirements
- Meets ZDHC MRSL Version 2.0 standards
- Not listed on SVHC candidate list (REACH)
- Biodegradability: < 10% in 28 days (OECD 301B)
- BOD5/COD ratio: 0.05 (low biodegradability typical for disperse dyes)
Disperse Orange FAQ (Continued)
What is the recommended reduction clearing process for Disperse Orange?
For optimal wash fastness, especially with shades above 2% depth, we recommend reduction clearing with 2 g/L sodium hydrosulfite and 2 g/L soda ash at 70°C (158°F) for 20 minutes. This effectively removes surface dye and improves wet fastness properties. For sensitive fabrics, a milder clearing with 1 g/L of each chemical at 60°C (140°F) can be used.
Can Disperse Orange be used for polyester-cotton blends?
Yes, Disperse Orange can be used in polyester-cotton blend dyeing as the disperse component. For typical 65/35 P/C blends, we recommend a two-bath process with disperse dyeing first at 130°C (266°F), followed by reactive dyeing for the cotton portion. Alternatively, a one-bath process can be used with selected reactive dyes and proper auxiliaries.
What lighting conditions show Disperse Orange at its most accurate color?
Disperse Orange should be evaluated under D65 standard illuminant (daylight) for most accurate color assessment. The metamerism index is less than 0.5 under different light sources (D65 vs. TL84), ensuring good color consistency. For critical applications, we recommend spectrophotometric measurement with appropriate calibration.