Technical Selection Guide & Specifications | Nichwell Security Materials
Nichwell formulates and manufactures high-performance organic ultraviolet (UV) fluorescent pigments for high-security applications. These materials meet stringent industry benchmarks for fluorescent intensity, chemical resistance, and long-term lightfastness in banknotes, identity documents, and brand-protection packaging.
1. Mechanism of 365nm UV Red Pigments in Security Printing
This product line consists of fine organic powders that remain virtually invisible under normal ambient light. When exposed to a standard 365nm long-wave ultraviolet light source (UV-A), the particles immediately emit a vibrant, highly saturated red fluorescence. This optical response matches the standard validation hardware used globally by border controls, financial institutions, and sorting systems.
- Emission Profile: Highly concentrated wavelength peak at 610–612nm. This precise red emission provides superior contrast over paper backgrounds, laminates, and base inks compared to standard green or blue pigments.
- Machine Readability: Instantaneous optical response allows flawless high-speed automated sorting and handheld verification.
- Formulation Compatibility: Fine particle distributions enable seamless integration into offset, intaglio, flexographic, screen, and inkjet printing processes.
2. Highest-Demand Applications for Organic UV Powders
- Banknotes & Financial Securities: Engineered to withstand a circulation lifespan exceeding 10 years. The pigment maintains precise fluorescence intensity under continuous friction, light exposure, and chemical hazards when incorporated into security threads or intaglio inks.
- Identity & Official Documents: Suitable for passports, visas, and national ID cards. The organic powder can be integrated directly into security laminates, polymer substrates, or underlying ink layers without color shifting over a 5- to 10-year validity period.
- Brand Protection & Logistics: Used in micro-dosing secure labels, tamper-evident seals, and high-precision invisible batch coding for pharmaceuticals and consumer luxury goods.
3. How to Choose the Right Grade: Y3A to Y3E Series Specifications
To meet specific formulation requirements (solvent resistance, temperature stability, or peak brightness), Nichwell offers five distinct product grades:
Grade | Wavelength | Particle Size | Technical Characteristics & Application Guide |
UV Red Y3A | 612 ± 5nm | 1–10 μm | High brightness, good solubility. Best for indoor applications where maximum brilliance is required. |
UV Red Y3B | 612 ± 5nm | 1–15 μm | High brightness, good heat & light stability (limited solubility). Suitable for outdoor markings and high-temperature processing. |
UV Red Y3C | 612 ± 5nm | 1–15 μm | High brightness and solvent solubility. Designed for budget-optimized, indoor security labels and packaging inks. |
UV Red Y3D | 610 ± 5nm | 1–15 μm | Balanced performance. Offers moderate-to-high brightness combined with robust lightfastness, heat stability, and solvent solubility. |
UV Red Y3E | 610 ± 5nm | 1–15 μm | Optimized balanced grade. Engineered for stable compatibility in complex solvent ink formulations requiring strict long-term lightfastness. |
Selection Rule Summary:
- For peak optical brightness: Select Y3A or Y3C.
- For outdoor lightfastness or thermal processing: Select Y3B, Y3D, or Y3E.
- For complete solubility in organic solvents, select Y3A, Y3C, Y3D, or Y3E.
4. Technical Support & Quality Compliance
- Regulatory Standards: Fully RoHS compliant, non-toxic, and free from heavy metals.
- Custom Dispersion: Particle sizing and surface treatments can be customized to match specific water-based, solvent-based, or UV-curable ink vehicles.
- Multi-layered Security: Nichwell manufactures matching pigments responsive to shortwave UV (254nm), mid-wave UV, and 980nm Infrared Upconverting (Anti-Stokes) systems to facilitate multi-tiered security protocols.
- Sampling Support: Technical documentation (TDS/MSDS) and testing samples are available upon request. Minimum trial orders start at 10g. Full industrial volume manufacturing capacities are available for global export.
FAQ| Technical Support for365nm Organic UV Fluorescent Red Pigments
Q: What is the optimal excitation source for Nichwell’s 365nm organic UV fluorescent red pigment?
A: Our 365nm organic UV fluorescent red pigment (UV Red Y3A-Y3E series) is engineered for optimal excitation under a standard 365nm UV-A light source or blacklight LED.
Q: Can this invisible red pigment be used in water-based security inks?
A: The standard UV Red Y3A-Y3E grades are designed for solvent-based and UV-curable systems. For water-based security printing inks, please contact our technical team for custom surface-treated fluorescent red powder options.
Need to integrate invisible red security features into your ink formulation?
Explore our complete UV Fluorescent Pigments Catalog to see other wavelengths (254nm/365nm) and color options.
Contact our technical team today to Request a 10g Testing Sample and TDS/SDS reports.