PIGMENT BLUE 1/ HP BLUE 4415
Fresh color
Technical Information
C.I.NO.: PB1
Advantage: Fresh color
Application：
Applications: offset inks, water based inks,
Main Application Recommended: Offset inks, Toners
Product Description – PB1
HP BLUE 4415 (PIGMENT BLUE 1) offers clean reddish shades of blue and is largely as fast as other types of pigments within the same class but unstable in polar solvents like alcohols, ketones, and esters. It is widely used in special printing inks, easily incorporated into oily binders for letterpress and offset inks, and commonly used in gravure and packaging printing inks.
Recommended Application：
Printing inks: offset inks, water based inks,
Technical Data:
| Product Information | ||||
|---|---|---|---|---|
| Chemical Type | Triphenylmethane Lake | CAS NO. | 1325-87-7 | |
| C. I. Name | Pigment Blue 1 | EINECS / ELINCS NO. | 215-410-7 | |
| C. I. Constitution No. | 42595:2 | Chemical Formula | C33H40N3+ | |
| Technical Performance | ||||
|---|---|---|---|---|
| Full Shade | Tint | |||
| Full Shade | Tint | |||
| Weather Resistance | 5 | 4 | Heat Stability °C | 160°C |
| Light Fastness | 5 | 4 | ||
| Physical Properties | ||||
|---|---|---|---|---|
| Physical Form | Powder | Bleeding in Xylene | 4 | |
| Specific Density (g/cm3): | 1.70 ± 0.1 | Resistance to Acid | 5 | |
| Specific Surface(㎡/g): | 14-15 | Resistance to Alkali | 4 | |
| Oil Absorption | 45 ± 5 | Resistance to Oil | 4 | |
| pH Value | 6.0 | |||
| 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?
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Frequently Asked Questions — PIGMENT BLUE 1
What makes PIGMENT BLUE 1 (CAS 1325-87-7) suitable for offset inks?
PIGMENT BLUE 1 (HP BLUE 4415, CI PB1) delivers a clean reddish blue shade ideal for high-quality offset printing inks. Its triphenylmethane lake chemistry (CAS 1325-87-7) provides excellent oil compatibility, enabling easy incorporation into oily binders for letterpress and offset applications. For water-based ink systems, proper dispersing aids are required due to its instability in polar solvents like alcohols, ketones, and esters.
How does HP BLUE 4415 perform in toners and water-based inks?
HP BLUE 4415 (PIGMENT BLUE 1) is recommended for both offset inks and toners, offering fresh color strength and clean reddish undertones. In water-based inks, its performance depends on careful formulation with dispersing agents, as the pigment is unstable in alcohols and ketones. The pigment density (typically ~1.4 g/cm³) supports efficient dispersion in hydrophilic systems when paired with appropriate wetting agents.
What are the technical limitations of PIGMENT BLUE 1 in solvent-based systems?
PIGMENT BLUE 1 (CI PB1, EINECS 1325-87-7) exhibits poor stability in polar solvents, including alcohols, ketones, and esters. This limits its direct use in solvent-based coatings and gravure inks. However, for offset inks and toners where non-polar binders dominate, it provides reliable fastness properties comparable to other triphenylmethane lake pigments.
Can PIGMENT BLUE 1 replace PB15 or PB27 in printing ink formulations?
No—PIGMENT BLUE 1 (PB1) is chemically distinct from phthalocyanine (PB15) and ferric ferrocyanide (PB27) pigments. As a triphenylmethane lake, it offers a cleaner redder blue shade but lower lightfastness and heat stability (typically <180°C). Its primary application is in high-end offset inks and toners where color purity outweighs extreme durability requirements.
What quality controls ensure batch consistency for HP BLUE 4415?
Every batch of PIGMENT BLUE 1 (HP BLUE 4415) undergoes ISO 9001-certified testing for color strength, shade, bleeding in xylene, density, and particle size distribution. Three-year batch records are retained, with each shipment including a certificate of analysis. This zero-defect approach ensures reliable color reproduction for offset ink and toner manufacturers requiring stable blue shade chemistry.