NIR Absorbing Dyes
Near-Infrared Absorbing Dye (NIR Dye) – Broad-Spectrum NIR Absorbers for Laser Welding, Anti-Counterfeiting & Optical Filtering
Nichwell’s Near Infrared (NIR) Absorbing Dyes are high-performance organic dyes engineered for superior absorption in the 700-1100nm wavelength range. With excellent thermal stability, solubility, and consistent absorption performance.
These dyes enable critical performance enhancements across diverse industries. They are essential in producing NIR-cut filters for sharper imaging in cameras and smartphones, serve as powerful agents for deep-tissue biomedical imaging and therapy, and contribute to higher efficiency in transparent solar cells. Furthermore, they provide reliable protection in laser safety materials and enable advanced security features in anti-counterfeiting technologies.
Technical Specifications of NIR Absorbing Dyes
| Product Grade | Absorption Maximum | Appearance | Solubility Profile |
|---|---|---|---|
| NIR710T ↗ | 710 nm | Blue powder | Soluble: AC, MEK, CYC, EGE, MC, TCM, BZ, TL etc. Insoluble: EA, alcohols solvent. |
| NIR760 ↗ | 765 nm | Green powder | Soluble: AC, MEK, CYC, EGE, MC, TCM, BZ, TL etc. Insoluble: EA, alcohols solvent. |
| NIR775 ↗ | 775 nm | Green crystalline powder | Soluble: MA, EtOH, EGE, MC, TCM. Insoluble: EA, BZ, TL etc. |
| NIR780 ↗ | 780 nm | Brown to olive crystalline powder | Soluble: MA, EtOH, EGE, MC, TCM. Insoluble: EA, BZ, TL etc. |
| NIR790 ↗ | 790 nm | Dark brown powder | Soluble: THF |
| NIR814 ↗ | 814 nm | Black powder | Soluble: TL, n-BuOH, EtOH, MA. |
| NIR815C ↗ | 815 nm | Dark brown red crystalline powder | Soluble: MA, EA, EGE, MC, TCM. Insoluble: BZ, TL etc. |
| NIR850 ↗ | 850 nm | Orange red crystalline powder | Soluble: MA, EtOH, EGE, MC, TCM. Insoluble: EA, BZ, TL etc. |
| NIR852N ↗ | 852 nm | Black powder | Soluble: BZ, TL, MC, TCM. Insoluble: EA, EtOH etc. |
| NIR880C ↗ | 880 nm | Brownish red powder | Soluble: MA, EtOH, EGE, MC, TCM. Insoluble: EA, BZ, TL etc. |
| NIR908 ↗ | 908 nm | Brown red crystalline powder | Soluble: MA, EtOH, EGE, MC, TCM. Insoluble: EA, BZ, TL etc. |
| NIR910 ↗ | 910 nm | Black powder | Soluble: MA, EtOH, EGE, MC, TCM. Insoluble: EA, BZ, TL etc. |
| NIR960 ↗ | 960 nm | Black powder | Soluble: AC, MEK, CYC, EGE, MC, TCM, BZ, TL etc. Insoluble: EA, alcohols solvent. |
| NIR982 ↗ | 985 nm | Green powder | Soluble: MA, EtOH, MC, TCM, EGE etc. |
| NIR982T ↗ | 985 nm | Green powder | Soluble: MA, EtOH, MC, TCM, EGE etc. |
| NIR990 ↗ | 992 nm | Dark brown powder | Soluble: MA, EtOH, EGE, MC, TCM. Insoluble: EA, BZ, TL etc. |
| NIR1001 ↗ | 1004 nm | Black powder | Soluble: MC, TCM, EDC, BZ, TL. Insoluble: Alcohol, Ester, Ketone. |
| NIR1072 ↗ | 1070 nm | Dark brown powder | Soluble: AC, MEK, CYC, MC, TCM etc. |
NIR Dye Solutions for Your Application
For Laser Safety & Eye Protection
Absorption Peaks: 750nm, 780nm, 850nm, 908nm, 980nm
Key Properties: High optical density, excellent photostability, compatible with polycarbonate and PMMA.
Customization: Available in masterbatch or pre-dispersed forms.
For Anti-Counterfeiting & Security Printing
Absorption Peaks: 850nm, 910nm, 980nm, 1064nm
Key Properties: Invisible to naked eye, sharp absorption band, soluble in common printing ink solvents.
Customization: Tailored absorption peaks and particle size for gravure/flexo inks.
For Optical Filters & Sensors
Absorption Peaks: 710nm, 760nm, 810nm, 860nm, 940nm
Key Properties: Steep cut-off, high transmission in visible range, thermal stability up to 300°C.
Customization: Custom blends for specific cut-on/cut-off requirements.
For Biomedical & Imaging
Absorption Peaks: 780nm, 808nm, 980nm, 1064nm
Key Properties: Low cytotoxicity (upon request), high molar absorptivity, water-soluble variants available.
Customization: PEGylation or functional groups for conjugation.
Why Choose Nichwell's Near-Infrared (NIR) Dyes?
In the rapidly evolving world of NIR technologies, the quality and performance of your dyes are paramount.
At Nichwell, we are not just a supplier; we are your dedicated partner in mastering the invisible spectrum. With decades of expertise in pigment and dye chemistry, we bring unparalleled precision and reliability to every NIR dye we produce.
Here’s why industry leaders trust Nichwell:
1. Unmatched Precision in Optical Performance
Our core strength lies in our ability to engineer NIR dyes with exceptional consistency and targeted performance. We precisely control the absorption and transmission characteristics, ensuring your application—whether it’s for IR cut-off filters, security printing, or optical sensors—delivers exact same results, batch after batch.
2. Superior Stability and Durability
A great NIR dye is useless if it fades or degrades. Nichwell’s dyes are synthesized for maximum resistance to:
Light Fastness: Withstands prolonged exposure to visible and UV light.
Thermal Stability: Maintains performance under high-temperature processing and operating conditions.
Chemical Resistance: Compatible with various polymers and solvents without compromising its NIR properties.
3. Tailored Solutions for Your Formulation
We understand that one size does not fit all. Our technical team works directly with you to develop custom NIR dye solutions that integrate seamlessly into your specific matrix—be it plastics, coatings, inks, or textiles. We solve your unique challenges in heat management, light manipulation, and stealth technology.
4. A Heritage of Color Science Expertise
Our deep-rooted knowledge in traditional color chemistry is the foundation of our NIR innovation. We understand molecular structures and their interactions with light at a fundamental level, allowing us to push the boundaries of what’s possible in the near-infrared spectrum.
5. Consistent Quality, Scalable Supply
As an established chemical manufacturer, we have the robust infrastructure and rigorous quality control systems to guarantee the purity and consistency of every gram of NIR dye you receive. From R&D samples to full-scale production, we deliver with reliability you can count on.
6. Technical Partnership from Lab to Production
Your success is our mission. When you choose Nichwell, you gain more than a product; you gain a partner. Our expert chemists and application specialists provide unparalleled technical support, from initial selection and integration to troubleshooting and optimization.
Enhance Your Product Line with High-Performance Infrared Dyes
Partner with Nichwellchem for reliable supply and technical expertise in near-infrared absorption dyes. We offer wholesale solutions tailored to industrial needs, ensuring the best quality and service.
Besides Nir Absorbing Dyes, we also manufacture high-quality UV Fluorescent Pigments ， Thermochromic Pigments ，Blue Light absorbers and Perylene Pigments for smart coatings.
Frequently Asked Questions
Here are some frequently asked questions. If you have any inquiries, please feel free to contact us at any time.
How to control product quality and stability
For perylene products, our quality inspection strictly controls purity, hue, solid content and coloring power. For UV products, the quality inspection strictly controls the content, brightness and emission wavelength. For dyes, quality inspection strictly controls purity, absorption wavelength and emission wavelength. Ensure that the specifications of the samples provided to you are consistent with those of the batch finished products.
How do you ensure that the products meet customers’ requirement?
- To ensure all goods meet your requirements, we implement a pre-shipment sample confirmation process.
- After production is completed, we randomly select representative samples from goods and send it to you as “pre-shipment sample” .
- Goods will only be scheduled for shipment after we receive your confirmation of pre-shipment sample quality. This procedure is part of our quality assurance system, ensuring that our products align with your specifications.
Whether the supply can be stable for a long time and the price stability can be maintained.
On the premise of stable quality, we will maintain long-term, stable supply and price stability. We will do our best to provide cost effective materials, and help customers maintain stable production cost.
Can I obtain the TDS MSDS or samples of the products?
Of course. You can click get sample on each product page. Or contact our customer service directly, and we will send it to you in time.
What is the ordering process?
Needs Communication: You contact us via website, phone, or email to inform us of your requirements.
Proposal/Quotation: Our sales consultants will provide you with a detailed solution and quotation.
Contract Signing: After both parties confirm the details, a formal purchase contract is signed.
Payment: You make the payment according to the contract terms.
Delivery: Once payment is confirmed, we will promptly arrange shipment and provide you with the logistics information.
What should I do if I encounter a problem while using the products?
Please know that we are here to support you. Any issue is a challenge we will solve together.
We recommend following these steps for a swift resolution:
- Quick Self-Check: Please verify the product batch number, review the provided technical data sheets, and confirm that your process parameters are within the recommended range.
- Prepare Your Information: To ensure efficient communication, please have the following details ready: Product Name/Batch Number, a specific description of the issue (e.g., color deviation, poor dispersion – photos are highly encouraged).
Please contact info@nichwellchem.com or your sales manager. Our company will urge the sales manager to answer your questions at the first time.
Can you customize the products?
Of course, please communicate the details with your sales manager in time and send the product details or samples. Look forward to developing more customized products for you.