UV, VISIBLE & NIR ABSORBING DYES FOR SELECTIVE LIGHT CONTROL

NEAR-INFRARED (NIR) ABSORBING DYES 

Selective absorption beyond the visible spectrum

Near-infrared absorbing dyes are used when a finished material must absorb a defined NIR wavelength or band while maintaining an acceptable visible appearance. QCR Solutions supplies NIR dyes for detector-readable and security inks, optical filters, laser-protection components, coatings, adhesives, plastics, and other specialty applications.

Candidate selection depends on the target wavelength range, required optical density or transmission, matrix, thickness or coat weight, processing conditions, visible tint or VLT, and durability requirements. A peak near the target wavelength does not confirm formulation compatibility, processing stability, or finished-part performance.

 Solvent Soluble NIR Dyes
For solvent borne coatings, inks, adhesicves, casting systems and specialty formulations.

 Water Soluble Absorbing Dyes
For aqueous inks, coatings markers and detector readable systems requiring UV, visible or NIR absorption.

 NIR Dyes for Thermoplastics
For compounded or molded optical parts where resin compatibility, actual melt temperature, residence time and thickness must be considered.

UV & Visible Absorbing Dyes

Selective control of ultraviolet and visible wavelengths

QCR Solutions supplies UV and visible absorbing dyes for optical filtering, color balancing, controlled transmission, and detector-readable applications. UV dyes target defined ultraviolet bands, while visible dyes selectively absorb wavelengths that affect color or optical response.

Candidate selection depends on the target wavelength or band, required optical density or transmission, matrix or formulation, thickness or coat weight, processing conditions, acceptable color or fluorescence, and durability.

Solvent Soluble UV and Visible Dyes
For solvent-borne inks, coatings, adhesives, cast-polymer systems, and specialty formulations. Selection depends on solvent and binder compatibility, concentration, processing conditions, and required optical performance.

Water Soluble Absorbing Dyes
Selected water-soluble dyes are available for aqueous inks, coatings, markers, indicators, and detector-readable systems requiring UV, visible, or NIR absorption. pH, ionic strength, co-solvents, concentration, and storage stability must be evaluated.

FORMULATED DYE SYSTEMS & QUALIFIED CUSTOM DEVELOPMENT

Some optical targets require a coordinated combination of absorbers rather than a single dye. QCR Solutions supplies established multi-dye systems and may evaluate custom development for qualified projects with a defined material system, process, thickness, spectral target, test method, and commercial objective.

Formulated systems must be validated in the customer’s final material, process, and finished article.

Welding Filter Dye Systems
Coordinated dye systems for developing controlled visible and near-infrared attenuation profiles. The customer must validate final filter performance and compliance with all applicable safety standards.

Visible-Opaque, NIR-Transmitting Dye Systems
Formulated systems designed to reduce visible transmission while preserving transmission within selected near-infrared regions. Performance depends on the formulation, loading, thickness, processing conditions, and required NIR transmission window.

Application-Specific Dye Systems
For qualified applications that cannot be addressed adequately with a single absorber or an established dye system. QCR Solutions may evaluate coordinated dye combinations when the spectral requirement, material system, validation method, and commercial need are clearly defined.