Solvent-Soluble Near-Infrared (NIR) Dyes for Coatings and Inks
QCR Solutions helps developers narrow solvent soluble NIR dye choices based on the finished material system−not wavelength alone.
Use this page to screen solvent soluble NIR absorbing dyes for technical coatings, inks optical layers, adhesives, cast systems, and related specialty formulations. Temporary solvent solubility does not prove compatibility after drying, curing, polymerization.
How QCR Solutions Selects a Starting Dye
A useful starting dye depends on the finished construction, optical target, and process−not simply the
wavelength match in a solvent spectrum.
01 Material
Material System
Final binder, resin, varnish adhesive or substrate.
04 geometry
Thickness/Optical Path
Dry film, coating,
sheet, or lens
thickness controls absorption
02 solvent
Solvent Package
Screening solvent and the real production solvent blend.
05 Process
Manufacturing Process
Drying, cure, lamination, and thermal history can change performance.
03 visual
Optical Target
Wavelength, OD transmission, or detector response required.
06 END USE
Durability
Visible color VLT, haze, and service exposure matter.
Compare Solvent Soluble NIR Dyes
700nm – 799nm Near Infrared Dyes for Solvent Systems
Product | Absorption Max (nm) | Absorptivity (L g-1 cm-1) | Suggested Solvents | Technical Data Sheet (TDS) in PDF format |
| NIR706A | 706 | 224 | Acetone; EtOH; MEK | |
| NIR714A | 714 | 155 | 714 nm NIR Dye TDS | |
| NIR728A | 728 | 183 | 728 nm NIR Dye TDS | |
| NIR740C | 740 | 420 | Acetone; MeOH; MEK; GBL; DCM; PGMEA | |
| NIR757A | 757 | 370 | Acetone | 757 nm NIR Dye TDS |
| NIR762A | 762 | 372 | 762 nm NIR Dye TDS | |
| NIR775B | 775 | 454 | 775 nm NIR Dye TDS | |
| NIR783C | 783 | 414 | 783 nm NIR Dye TDS | |
| NIR790B | 790 | 417 | 790 nm NIR Dye TDS | |
| NIR795A | 795 | 333 | 795 nm NIR Dye TDS | |
800nm – 899nm Near Infrared Dyes for Solvent Systems
QCR Number | Absorption Max (nm) | Absorptivity (L g-1 cm-1) | Solvents Rated 3+ | Technical Data Sheet (TDS) in PDF format |
| NIR800A | 800 | 297 | 800 nm NIR Dye TDS | |
| NIR805B | 805 | 400 | ||
| NIR811A | 811 | 342 | ||
| NIR819D | ||||
| NIR828B | 828 | 373 | ||
| NIR836C | 836 | 334 | ||
| NIR844D | ||||
| NIR856A | 856 | 274 | ||
| NIR864A | 864 | 342 | ||
| NIR868A | 868 | 252 | ||
| NIR880C | 880 | 298 | ||
| NIR886A | 886 | 337 |
900nm – 999nm Near Infrared Dyes for Solvent Systems
QCR Number | Absorption Max (nm) | Absorptivity (L g-1 cm-1) | Technical Data Sheet (TDS) in PDF format |
| NIR902A | 902 | 260 | |
| NIR910C | 910 | 282 | |
| NIR912C | 912 | 232 | |
| NIR935B | |||
| NIR949C | 925 | 19 | |
| NIR956A | 956 | 212 | |
| NIR960A | 960 | 187 | |
| NIR979C | 979 | 197 | |
| NIR980B | 980 | 179 | |
| NIR983A | 983 | 66 | |
| NIR989A | 989 | 220 |
> 1,000nm Near Infrared Dyes for Solvent Systems
QCR Number | Absorption Max (nm) | Absorptivity (L g-1 cm-1) | Technical Data Sheet (TDS) in PDF format |
| NIR1003A | 1003 | 213 | 1003 nm NIR Dye TDS |
| NIR1021A | 1021 | 265 | 1021 nm NIR Dye TDS |
| NIR1035A | 1035 | 145 | 1035 nm NIR Dye TDS |
| NIR1047A | 1047 | 271 | 1047 nm NIR Dye TDS |
| NIR1072C | 1072 | 72 | 1072 nm NIR Dye TDS |
Featured Starting Points
Use these five commercially important dyes as the first visual anchors on the page….
NIR706A
Why review this dye: a relatively narrow lower-NIR
absorber for transparent optical systems.
λ max: 706 nm
Absorptivity: 224
Solvents: acetone, EtOH, MEK, EtOAc, toluene
Note: optical and polymer evidence available
NIR706A
Why review this dye: a relatively narrow lower-NIR
absorber for transparent optical systems.
λ max: 706 nm
Absorptivity: 224
Solvents: acetone, EtOH, MEK, EtOAc, toluene
Note: optical and polymer evidence available
NIR706A
Why review this dye: a relatively narrow lower-NIR
absorber for transparent optical systems.
λ max: 706 nm
Absorptivity: 224
Solvents: acetone, EtOH, MEK, EtOAc, toluene
Note: optical and polymer evidence available
NIR706A
Why review this dye: a relatively narrow lower-NIR
absorber for transparent optical systems.
λ max: 706 nm
Absorptivity: 224
Solvents: acetone, EtOH, MEK, EtOAc, toluene
Note: optical and polymer evidence available
NIR706A
Why review this dye: a relatively narrow lower-NIR
absorber for transparent optical systems.
λ max: 706 nm
Absorptivity: 224
Solvents: acetone, EtOH, MEK, EtOAc, toluene
Note: optical and polymer evidence available
Where These Dyes May Be Evaluated
Optical Coatings + Filters: Confirm binder, dry film thickness, target band and optical clarity.
Security + Machine Readable Inks or Coatings: Confirm print method, solvent, film deposit, and reader wavelength.
Clear + Transparent Card Systems: Confirm varnish compatibility, lamination heat history, OD at required bands, and visible neutrality.
What To Watch During Screening
A useful solvent-screenoing result is only a first step. Track these risks in the finished system during evaluation.
Solubilty/Precipitation: A dye may dissolve during screening and still fall out during drydown or storage.
Cure/Polymerization Interaction: Reactive chemistry can shift, weaken, or deactivate the optical repsonse.
Thermal Degredation: Drying, cure, lamination, or molding heat history can reduce dye performance.
Special Shift: The absorption maximum can move between a test solvent and the finished article.
Visible Color/Transmission: Higher loading may darken the article or reduce visible transmission.
Aggregation/Saturation: Heavy loading can flatten response, create haze, or limit useful preformance gains.
When One NIR Dye Is Not Enough
Some Optical targets need more than one absorption band or a coordinated visible appearance. In those cases, a documented dye set may be more practical than a singel-dye approach.
CF018NG | NIR Dye Set
Established solvent dissolvable set for clear and transparent car IR-blocking layers. Absorption peaks near 860 and 950 nm. Visible appearance: neutral-gray transparent layer.
Intended for solvent based screen varnish systems used in ISO/IEC 7810 ATM/IR detection windows.
This is an application specific set, not a universl replacement for individual dyes.
Technical Support + Evaluation Boundary
What QCR Solutions can provide
• Curated dye option
• Current TDS and SDS routing
• Solvent direction and historical use content
• Guidance for screening in coating, inks, optical layers, and related systems
What Testing Still Must Confirm
• Final Compatibilty
• OD or transmission in the real article
• Visible appearance and VLT
• Durability in the finished system
Discuss Your Solvent Soluble NIR Application
Send us the information that controls selection: material system, solvent package, thickness or optical path, target wavelength or range, required OD or transmission, visible color or VLT limit, processing or cure conditions, duraabilty requirement, and intended evaluation method. We support paid evaluations, and the quality of the starting recommendation depends on the information provided.