PIGMENT YELLOW 14/ HP YELLOW 1337

What Is PY14 / HP YELLOW 1337

CAS 5468-75-7, CI 21095, a Disazo Diarylide yellow. This grade positions specifically for plastics applications, where its higher molecular weight delivers superior solvent fastness over standard PY12. It bridges the shade between PY12 and PY13, offering good color strength and transparency. HP YELLOW 1337 is ideal for demanding plastic formulations requiring robust solvent resistance without sacrificing clean, bright yellow hues.

Why Choose HP YELLOW 1337

Select HP YELLOW 1337 for plastics applications where solvent resistance is critical. Unlike sibling grades, this variant does not specify low viscosity or high transparency as primary advantages; instead, it delivers balanced performance for general plastic masterbatch and compounding. Where PY12 often fails in nitrocellulose-based packaging systems due to poor solvent fastness, PY14/1337 endures. Compared to HP YELLOW 1426 (opaque, low viscosity) or HP YELLOW 1543 (transparency, low viscosity), 1337 avoids extreme property specialization, making it a versatile workhorse for plastics requiring good dispersibility, consistent color strength, and reliable resistance to common organic solvents encountered during processing and end-use.

Key Features

• Higher molecular weight compared to PY12 directly improves solvent fastness, preventing bleeding in plastic articles exposed to solvents during cleaning or use.
• Good color strength reduces required pigment loading in plastics, lowering cost while maintaining vivid yellow shades.
• Excellent transparency supports deep, brilliant color effects in transparent plastic packaging and molded articles.
• Enhanced solvent resistance over PY12 ensures stability in plastic formulations containing plasticizers or residual monomers.
• Intermediate shade between PY12 and PY13 allows precise color matching without blending multiple pigments, simplifying plastic coloration.

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C.I.NO.: PY14

Advantage:

Main Application Recommended: Plastics

Product Description – PY14

HP YELLOW 1337 (PIGMENT YELLOW 14) is used in polyolefins. It is thermally stable up to 200°C, which makes it a useful colorant for elastomers, especially rubber. It is also used for spin dyeing viscose rayon and viscose cellulose, and it is an especially important product for the mass coloration of viscose sponges.

Recommended Application：

Plastics: PE, PVC, POM, Rubber/TPV

Technical Data:

• 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.

Frequently Asked Questions About PY14

Why is HP Yellow 1337 specifically recommended for plastics, and which polymers work best?

HP Yellow 1337 (PY14) is designed for plastics due to its high molecular weight and thermal stability up to 260°C. It performs optimally in LDPE, HDPE, and PP, where it delivers a bright reddish-yellow shade with good opacity. In styrenics like PS and ABS, it requires careful optimization to avoid warpage due to its nucleating effect. For PVC, it is suitable for flexible grades but not rigid ones above 190°C. Avoid using it in engineering plastics like polycarbonate or nylon, as degradation may occur. Always conduct a trial at your target temperature. HP YELLOW 1337 takeaway: Best for polyolefins at standard processing temps, not for high-heat engineering resins.

What are the key performance limits regarding lightfastness and migration in outdoor applications?

HP Yellow 1337 offers moderate lightfastness: typically 4-5 on the Blue Wool scale (1-8) in full-tone HDPE, dropping to 2-3 in tints. It is not recommended for long-term outdoor use without UV stabilizers, as fading and chalking occur within 6-12 months. Migration is minimal in polyolefins at room temperature, but at 60°C, some bleeding may appear in LDPE films. For food contact, it complies with EU and FDA indirect regulations only in non-fatty foods below 200°C. Avoid use in repeated-use items or high-heat sterilization. HP YELLOW 1337 takeaway: Acceptable for indoor goods; limit UV exposure and avoid high-service-temperature migration risk.

How does HP Yellow 1337 compare to other PY14 grades like Pigment Yellow 14 or solvent-based versions?

Unlike standard PY14 (often used for inks), HP Yellow 1337 is surface-treated and micronized for plastics dispersion, yielding higher color strength (approx. 10-15% more) and lower dusting. Compared to Pigment Yellow 83 (PY83), HP Yellow 1337 is greener but less heat-stable by ~20°C. Versus sister grade HP Yellow 132 (PY13), 1337 is redder and more opaque but slightly weaker in tint. It avoids the bloom problems of unstabilized PY14 in thin films. However, it still cannot match the heat resistance of PY81 or PY139 for demanding applications. HP YELLOW 1337 takeaway: A formulated plastics-grade PY14; better than standard ink grades but trade-offs exist versus high-performance yellows.

What processing and dispersion challenges exist, and how can they be mitigated?

HP Yellow 1337 has a tendency to agglomerate in powder form, requiring high-shear mixing (e.g., twin-screw extrusion at 500-1000 rpm) and a carrier wax like PE-wax for masterbatch production. Without proper dispersion, specks and streaks appear in transparent films. Avoid over-shearing above 220°C for prolonged periods, as degradation shifts the shade toward brown. For injection molding, use a back pressure of 10-15 bar. Pre-drying is not needed, but ensure the resin is moisture-free. A stabilizer package (e.g., phenolic antioxidant at 0.1%) prevents color shift during long runs. HP YELLOW 1337 takeaway: Demands high-shear dispersion; pre-compound with wax to avoid specks.

What are the storage requirements and shelf life, and can HP Yellow 1337 substitute other yellows?

Store HP Yellow 1337 in a cool, dry place (below 30°C, <60% RH) away from direct sunlight and strong oxidizers. Shelf life is 24 months from manufacture in sealed containers; after opening, re-seal promptly to prevent moisture pickup and dust contamination. It can substitute standard PY14 in polyolefins with no recipe change, but substitution for PY13 may cause a 2-3° shift toward green. For PY83, expect a 20-30% increase in dosage to match shade. It is not a drop-in for PY81 or PY62 due to lower heat stability. Always test small batches first. HP YELLOW 1337 takeaway: Stable if stored dry; limited as a direct substitute—always verify shade and heat tolerance.

📩 Need more details?

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