Topwell Dyes | Advanced Functional Pigments & Dyes Manufacturer

Innovating the Future of Functional Colorants

Topwell Dyes is a leading manufacturer of high-performance pigments and dyes, specializing in UV fluorescent, thermochromic, perylene, and near-infrared (NIR) absorbing technologies. With advanced international production processes and a dedicated R&D team, we deliver reliable, stable, and customizable solutions for industries ranging from security inks to automotive coatings.

Advanced Technology

Utilizing cutting-edge synthesis and purification methods to ensure product consistency and performance.

Custom Development

Tailored formulations based on customer specifications and application requirements.

Global Supply

Trusted by clients worldwide with efficient shipping and responsive support.

Quality Assurance

Rigorous testing including HPLC analysis to guarantee purity and performance.

Featured Products

Discover our range of high-performance pigments and dyes designed for industrial, security, and specialty applications.

UV Fluorescent Pigment 365nm

Invisible under normal light, emits bright fluorescence under 365nm UV. Ideal for anti-counterfeiting inks, security labels, and authentication.

• Inorganic & Organic variants
• Colors: Red, Green, Yellow, Blue, Orange
• High stability and dispersion

Thermochromic Pigment

Reversible color-changing pigment activated by temperature. Used in smart coatings, mugs, textiles, and automotive paints.

• Heat-activated color change
• Reversible & durable
• Custom transition temperatures

Perylene Pigment Black 32

High-performance black organic pigment with exceptional resistance to heat, acids, alkalis, and solvents.

• CAS No.: 83524-75-8
• For plastics, coatings, fibers
• Excellent chemical stability

Perylene Pigment Red 179

Best-selling high-fastness red pigment for coatings, plastics, and masterbatches. Excellent light and heat resistance.

• CAS No.: 5521-31-3
• High opacity and tinting strength
• Suitable for outdoor applications

NIR Absorbing Dye 980nm

High molar extinction coefficient dye for laser protection, optical filters, and photonic devices.

• Wavelengths: 700–1064nm
• Soluble in organic solvents
• Thermal & photochemical stability

254nm UV Fluorescent Pigment

Short-wave UV responsive pigment for high-security applications requiring covert marking.

• Inorganic & Organic options
• Invisible under daylight
• Used in banknotes, ID cards

Lumogen Red F 300 (PR 311)

High fluorescent red pigment with excellent thermal stability up to 300°C. Ideal for plastics and solar films.

• CAS No.: 112100-07-9
• ≥98% purity
• Superior light fastness

Blue Light Absorber

Functional dye that absorbs harmful blue-violet light, used in protective coatings and optical materials.

• Protects against photodegradation
• Compatible with PMMA, PC
• Enhances product lifespan

Advanced Technology & Capabilities

Backed by research, innovation, and precision manufacturing.

🔬

R&D Focus

Dedicated research team developing next-generation pigments tailored to client needs.

🏭

Factory Direct

Wholesale pricing with consistent quality from our own production facility.

🧪

HPLC Testing

Each batch analyzed for purity, ensuring reliable performance and traceability.

🔄

Custom Solutions

Formulation adjustments for solubility, particle size, and activation thresholds.

Frequently Asked Questions

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

254nm pigments respond to short-wave UV light and are typically used in high-security applications like banknotes. 365nm pigments react to long-wave UV, commonly found in handheld black lights, and are used in security inks, event wristbands, and authentication labels.

Are thermochromic pigments reversible?

Yes, most of our thermochromic pigments are reversibly temperature-sensitive, meaning they change color when heated and return to their original state when cooled. Transition temperatures can be customized.

Can NIR dyes be used in plastics?

Absolutely. Our NIR absorbing dyes are highly soluble in polymers like PMMA, PC, and PET, making them ideal for smart windows, laser filters, and heat management films.

Do you offer samples?

Yes, we provide product samples upon request. Please contact us directly for sample availability and shipping details.

What certifications do you have?

Our manufacturing follows international quality standards. We provide COA (Certificate of Analysis) with every batch, including HPLC data, for full transparency.

Get in Touch

For inquiries, samples, or custom formulation support, reach out to our team.

Email: info@topwellchem.com

Phone: +86-312-3022806

Visit Official Website

For product inquiries, technical data sheets, or bulk orders, please visit the official site or contact us directly.