PIGMENT ORANGE 34/ HP ORANGE 3136
of PIGMENT ORANGE 34 (HP ORANGE 3136) for ink manu
Technical Information
C.I.NO.: PO34
Advantage: Transparancy
Main Application Recommended: Solvent based inks, Water based inks
Product Description – PO34
HP ORANGE 3136 (PIGMENT ORANGE 34) is a transparent version and represents the most frequent choice for printing inks. It provides a clean yellowish orange hue and high tinctorial strength. It shows good solvent resistance to a number of organic solvents. This pigment is used for all printing techniques, especially in packaging printing inks—particularly nitrocellulose inks.
Recommended Application：
Coatings: solvent based coatings, water based coatings, industrial coatings
Printing inks: offset inks, solvent based inks, water based inks
Technical Data:
| Product Information | ||||
|---|---|---|---|---|
| Chemical Type | AZO | CAS NO. | 15793-73-4 | |
| C. I. Name | Pigment Orange 34 | EINECS / ELINCS NO. | 239-898-6 | |
| C. I. Constitution No. | 21115 | Chemical Formula | C34H28Cl2N8O2 | |
| Technical Performance | ||||
|---|---|---|---|---|
| Full Shade | Tint | |||
| Full Shade | Tint | |||
| Weather Resistance | 5 | 5 | Heat Stability °C | 180°C |
| Light Fastness | 8 | 7 | ||
| Physical Properties | ||||
|---|---|---|---|---|
| Physical Form | Powder | Resistance to Acid | 5 | |
| Specific Density (g/cm3): | 1.60 ± 0.1 | Resistance to Alkali | 5 | |
| Specific Surface(㎡/g): | 48 | Migration resistance PVC | 5 | |
| Oil Absorption | 55 | Low warping applications | Suitable | |
| pH Value | 6.0 – 8.0 | |||
| Volatile Matter | 1% max | |||
| Packaging | ||||
|---|---|---|---|---|
| 25kgs/bag 400kgs/Pallet | ||||
| Storage Shelf Life 5 years | ||||
| Should be stored in cool, dry and ventilate place. |
| TRANSPORTATION | ||||
|---|---|---|---|---|
| Avoid inversion, sunlight, moisture and crash. Avoid damage the package. |
- Light fastness: Light fastness rating is assessed on 1 to 8 Blue Wool scale where 1 = ‘Poor’ and 8 = ‘Excellent’.
- Heat Stability : Heat stability values given indicate the maximum temperature at which the pigment can be stoved for 10 min. on the full shade and in reductions without undergoing any significant change in shade.
- Oil absorption: The oil absorption is determined on the basis of EN ISO 787-5 and given in g linseed oil per 100 gm. pigment.
- Solvent bleeding: The bleeding in solvents is tested using the powder grades and the visual rating given on 1 to 5 Grey scale
where 1 = ‘Heavy bleeding’ and 5 = ‘No bleeding”
Disclaimer — This Technical Data Sheet reflects our best understanding of typical product properties at the time of publication. Listed values are representative of standard production and are not intended as specifications, contractual parameters, or fitness guarantees. Batch variations within normal manufacturing tolerances may occur; users should verify critical parameters against their own requirements before use. Processing methods, formulations, and end-use environments are beyond the manufacturer’s control. The buyer assumes full responsibility for confirming product suitability through its own testing and quality assurance. No intellectual property license is granted or implied. All warranties are disclaimed, including merchantability and fitness for a particular purpose. The manufacturer is not liable for incidental, consequential, or special damages. All sales are governed by the manufacturer’s standard terms, available upon request. This product may contain particles below 0.1 μm. Any user of this product is responsible for determining the suitability of Honor Pigments’s products for its particular application & to ensure that any proprietary rights & existing laws & legislation are observed.
Why Choose Honor Pigments?
- 🌍 Global Export Expertise — Trusted by customers in 40+ countries for consistent quality and reliable supply
- ✅ Strict Quality Control — ISO 9001 certified with batch-to-batch consistency and zero-defect policy
- 💰 OEM Production Advantage — Competitive pricing without compromising pigment performance
- 🧪 Technical Support — Free color matching, formulation advice and sample testing before bulk order
📩 Need more details?
Request TDS, SDS, or a free sample for testing.
Frequently Asked Questions — PIGMENT ORANGE 34
What is the main advantage of PIGMENT ORANGE 34 (HP ORANGE 3136) for ink manufacturers?
HP ORANGE 3136 (PIGMENT ORANGE 34, CI 21115) is specifically designed as a transparent version, making it the most frequent choice for printing inks. It delivers a clean yellowish orange hue with high tinctorial strength, which means you achieve vibrant color with lower pigment loading. The product shows good solvent resistance to a range of organic solvents, making it suitable for solvent-based and water-based ink systems alike.
How does PIGMENT ORANGE 34 perform in offset printing inks?
PIGMENT ORANGE 34 is recommended for offset inks due to its transparency and strong color development. Its chemical formula (C₃₄H₂₈Cl₂N₈O₂) and disazo condensation chemistry ensure clean shade reproduction and press stability. For offset formulations, the pigment’s specific density of approximately 1.3–1.5 g/cm³ (verify per batch) supports good dispersion behavior, and its heat stability up to 180–200°C (typical for PO34) allows compatibility with standard drying processes.
Is HP ORANGE 3136 suitable for water-based industrial coatings?
Yes, PIGMENT ORANGE 34 is recommended for water-based coatings. It provides a transparent yellowish orange shade essential for color matching in industrial coating lines. The pigment exhibits resistance to alkali and acid (typical of disazo pigments), enabling stable performance in water-borne formulations. For optimal results, use with appropriate wetting agents to maintain dispersibility — the product’s physical form and surface treatment are optimized for aqueous systems.
What lightfastness and weather resistance can I expect from PIGMENT ORANGE 34 in exterior applications?
Based on standard technical data, PIGMENT ORANGE 34 (CI 21115) offers moderate lightfastness and weather resistance, typical for disazo condensation pigments. For exterior industrial coatings, it is best suited for indoor or low-UV exposure applications unless stabilized with UV absorbers. The pigment’s weather resistance rating (usually 3–4 on the blue wool scale) should be validated against your specific resin system and film thickness.
Can PIGMENT ORANGE 34 replace other orange pigments like PO5 or PO13 in solvent-based inks?
PIGMENT ORANGE 34 is a viable alternative to PO5 or PO13 when transparency and a cleaner yellowish hue are required. Unlike PO5 (a monoazo pigment with higher opacity and lower solvent resistance), PO34 offers better solvent resistance and heat stability. It also provides higher tinctorial strength compared to PO13 in most solvent-based systems. However, always conduct a full comparability test for shade, gloss, and adhesion in your specific binder system.