Spot-color control
Approve standards and production color with L*a*b*, spectral data and an agreed color-difference formula.
Graphics & packaging
Verify spot colors, production runs and packaging color tolerances across substrates, converters and suppliers—with a method that separates ink, paper and surface effects.

Why color drifts
Ink draw-downs, press sheets, labels and finished cartons can all carry the same nominal color and still measure differently. Paper whiteness, optical brighteners, ink film, coating, lamination and texture affect the result. Instrumented color control makes those variables visible before a run becomes waste.
Approve standards and production color with L*a*b*, spectral data and an agreed color-difference formula.
Track color at defined positions and intervals so drift is corrected while the press is still running.
Give printers, converters and brand owners one measurement method for approvals, claims and repeat orders.
Instrument options
Portable instruments suit press-side checks, incoming packaging and large finished items. Benchtop instruments suit controlled laboratory presentation, small specimens, transmission work and repeatable approval workflows.
Where it pays off
Approve brand colors against a protected physical and digital standard.
Reach the target faster by measuring early sheets before full production speed.
Sample defined positions across the web or sheet and trend drift through the run.
Check converted pieces after coating, lamination, embossing and finishing.
Verify supplier cartons, labels, closures and printed components before use.
Correlate instruments and exchange spectral data between brands, printers and converters.
Method notes
| Decision | Common starting point | Why it matters |
|---|---|---|
| Substrate | Measure the approved stock or control its whiteness and backing | Paper shade, opacity and brighteners can move both color and visual appearance. |
| Geometry | Keep geometry and specular condition fixed | Gloss, coatings and texture respond differently under different optical arrangements. |
| Aperture | Fit fully inside the printed patch | An aperture that includes unprinted stock, edges or adjacent colors produces a mixed result. |
| Tolerance | Name the formula and component limits | A shared ΔE number is only enforceable when every site calculates it the same way. |
UV control for paper and board
Many white papers and boards use optical brighteners. If they influence the approved appearance, define the UV condition and keep it consistent. The SD-700 UV is a relevant portable option where UV-included and UV-excluded comparison is required, but it is one option within the wider portable and benchtop ranges.
Specifying with confidence
Use the specimen that controls the commercial decision. Press sheets are best for process adjustment; the finished pack confirms the effect of coating, lamination, texture and conversion. Many programmes define both.
The substrate changes reflected light through its color, opacity, fluorescence and surface. Keep the approved stock fixed or define how substrate variation is handled.
It must fully cover the instrument’s true viewed and illuminated areas with margin for positioning. Confirm those areas for the selected aperture rather than relying only on the aperture name.
Yes, after agreeing the standard, sample construction, instrument geometry, settings, formula and correlation process. The limit alone is not a complete specification.
Related applications
Tell us the substrate, print process, patch size and tolerance. We’ll help match the geometry, aperture and workflow to the job.
Delta E
Use Delta E in printing with a named formula, matched measurement conditions, directional color information and tolerances validated against the product and viewing context.
Technical guide · Read the guide →Measurement Techniques
Measure opacity using defined black and white or paper-backing reflectance procedures, controlled orientation and representative sampling for paper, board, labels and flexible packaging.
Technical guide · Read the guide →UV Measurement
A practical explanation of ISO 13655 spectral measurement for graphic arts, including M0, M1, M2 and M3 conditions, backing, geometry and colorimetric metadata.
Technical guide · Read the guide →Buying & Selection
Choose a print and packaging spectrophotometer by matching ISO measurement conditions, geometry, aperture, UV control, sample presentation and data workflow to the real job.
Technical guide · Read the guide →UV Measurement
Measure paper whiteness with the correct metric, UV condition, backing or stack, orientation and conditioning so supplier and production results are comparable.
Technical guide · Read the guide →Illuminants
Understand how optical brightening agents and instrument UV content change paper and print measurements, and how M1, M2, ISO and D65 conditions should be controlled.
Technical guide · Read the guide →Color Spaces
Understand the different roles of D50 and D65 in print, packaging and paper workflows, and why calculation illuminant, physical viewing light and instrument UV condition must not be…
Technical guide · Read the guide →Fundamentals
A complete framework for controlling printed and packaging color across inks, substrates, press conditions, converting processes and final product inspection.
Technical guide · Read the guide →Measurement Techniques
Measure printed color with a defined target, ISO 13655 measurement condition, controlled backing and representative sampling plan from press sheet to finished product.
Technical guide · Read the guide →Delta E
Measure spot colors with spectral targets, controlled ink film and substrate conditions, and tolerances that preserve hue and chroma as well as total color difference.
Technical guide · Read the guide →Aperture Size
Measure packaging color across paperboard, corrugated board, labels, flexible film, rigid plastics and metal with construction-specific backing and sampling controls.
Technical guide · Read the guide →Aperture Size
Small-part color measurement depends on the true viewed and illuminated areas, precise targeting, controlled backing and a fixture that reproduces position and angle.
In-depth practical guide · Read the guide →