254nm Inorganic UV Fluorescent Pigment

Short-Wave UV Security Pigment for Printing, Coatings and Plastics

Nichwell 254nm inorganic UV fluorescent pigment powder is a high-performance invisible security pigment that emits bright visible fluorescence under 254nm short-wave UV light. Engineered for anti-counterfeiting, security printing, industrial inspection, and functional coatings, it offers superior heat resistance, chemical stability, and dispersion for professional applications.

Excellent Optical Performance

Strong absorption at 254nm UV‑C spectrum, instant and bright fluorescence output
Invisible off‑white appearance under natural light; shows clear red, yellow, blue, green under 254nm UV lamp
High fluorescence intensity, good covering power, no bleeding or migration

Outstanding Inorganic Stability

Selected inorganic grades offer high thermal stability. , compatible with high‑temperature processing
Excellent chemical resistance: stable against acids, alkalis, and common solvents
Long‑term UV resistance: maintains fluorescence after prolonged UV exposure
Non-toxic and formaldehyde-free.
Selected grades comply with REACH requirements.

254nm Inorganic UV Fluorescent Pigment Specification:

254nm inorganic uv fluorescent pigment unlike organic counterparts, these pigments are highly resistant to heat (withstand temperatures up to 600°C, depending on composition), light, and chemicals. They maintain fluorescence intensity even after long-term exposure to uv radiation, moisture, or harsh solvents, making them suitable for outdoor or high-temperature processing.

Product	Daylight Appearance	Emission Under 254nm	Emission Range	Particle Size
Inorganic Red W2A	Off-white powder	Red	600–700 nm	1–10 µm
Inorganic Blue W2A	Off-white powder	Blue	400–500 nm	1–10 µm
Inorganic Yellow W2A	Off-white powder	Yellow	550–600 nm	1–10 µm
Inorganic Green W2A	Off-white powder	Green	500–570 nm	1–10 µm

Technical data are typical reference values and do not constitute a product specification. Performance varies by grade, formulation, substrate and processing conditions. Application testing is required.

Organic vs Inorganic 254nm UV Fluorescent Pigments

Nichwell offers both organic and inorganic 254nm UV fluorescent pigments to meet different application requirements: – Organic series: finer particle size (2–6 µm), designed for compatible solvent-based ink and coating systems – Inorganic series: broader particle size range (1–10 µm), selected grades offer improved thermal stability for high-temperature processing environments

View 254nm Organic UV Fluorescent Pigment

Not sure which grade fits your application? Tell us your UV wavelength, binder system, processing temperature and target emission color — our technical team will recommend a suitable grade for testing.

In order to get the best effect, it is very important to choose the correct 254nm uv fluorescent pigment. In our product series, the key characteristics such as brightness, solubility, absorption wavelength, light resistance and thermal stability are different. We offer a range of options to meet different needs. Please contact us for personalized help.

254nm UV Fluorescent Pigment Application:

1.Advanced Anti-Counterfeiting Printing

Banknotes, invoices, passports, visas, and official documents: hidden security threads and invisible markings
Brand protection labels for pharmaceuticals, cosmetics, electronics, and luxury goods
Authentication via portable 254nm UV detectors, easy for consumers and inspectors

2.Industrial Inspection & Quality Control

Non‑destructive testing: crack detection with fluorescent penetrants
Cleaning validation, material uniformity, and dispersion analysis in coatings and plastics
High‑sensitivity trace marking for process optimization

3. Specialty Marking and Functional Applications

Hidden graphic features for authentication labels
Invisible UV-responsive marks for brand protection packaging
Functional identification marks for industrial components

4.Electronics & Specialized Fields

PCB alignment marks and lithography positioning
Functional markings for LCD, semiconductor, and optical components
Traceable identification in high‑precision manufacturing

FAQ

1. What is the difference between 254nm and 365nm UV fluorescent pigments?

254nm pigments are activated by short‑wave UV‑C light, while 365nm pigments respond to long‑wave UV‑A. They are not interchangeable. Our 254nm series is designed for dedicated short‑wave UV security and inspection systems.

2. Are these pigments suitable for high‑temperature plastic processing?

Yes. Nichwell 254nm inorganic pigments withstand temperatures up to 600°C, making them ideal for PE, PP, ABS, and other thermoplastic processing.

3. Are these pigments non-toxic and compliant with safety regulations?

Selected grades are non-toxic and formaldehyde-free. Compliance with regulations such as REACH depends on the specific grade and end-use application. Suitability for food-contact or toy applications must be confirmed against applicable regulatory requirements. Please contact our technical team for grade-specific compliance information.

4. Can I get custom colors or specifications?

Yes. We provide custom formulation services for fluorescence color, particle size, solubility, and compatibility to match your ink, coating, or plastic system.