Achieve reliable and repeatable color for backlit displays, lightboxes, illuminated graphics, and other transmissive printing applications. Barbieri spectrophotometers provide automated transmission measurement for ICC profiling and color quality control under defined backlit viewing conditions.

Backlit Printing

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Reliable color under backlit viewing conditions

Backlit printing includes lightboxes, illuminated retail graphics, airport displays, exhibition systems, backlit textiles, films, and acrylic applications. The final color appearance depends on the printed material, ink layers, white ink configuration, backing, light source, and viewing condition.

For applications viewed with light passing through the print, transmission measurement provides the spectral data required for profiling and objective color evaluation under defined conditions.

The Spectro LFP qb and Spectro Swing qb combine automated reflection and transmission measurement in a single instrument. This supports profiling and color quality workflows for transparent, translucent, and backlit printing materials.

Automated chart measurement and integration with leading RIP and Color Management solutions help improve profiling efficiency and measurement repeatability.

What Makes Color Control in Backlit Printing Difficult

Measurement must match the viewing condition

A backlit print can appear different when viewed in reflection and when illuminated from behind. The appropriate measurement method depends on whether the final application is evaluated in reflection, transmission, or both. Transmission measurement is essential when profiling output for defined backlit viewing conditions.

Tonal gradation and density under illumination

Backlighting influences perceived density, contrast, shadow detail, highlights, and smooth tonal transitions. Accurate transmission measurement helps characterize how the complete print construction behaves when illuminated.

Color consistency across multiple panels

Large backlit installations may consist of multiple panels that are viewed side by side under the same illumination. Spectral measurement and defined production tolerances help improve consistency between panels, batches, printers, and production runs.

Where Color Measurement Fits in Your Backlit Printing Workflow

01

Material and process characterization

Measure the color behavior of each printer, ink set, print mode, substrate, white ink configuration, backing, and illumination condition as the basis for accurate profiling.

02

ICC profile creation in transmission

Print and automatically measure profiling charts in transmission to create ICC profiles for defined backlit printing and illumination conditions.

03

Production quality control

Measure control charts or representative production samples at defined intervals to identify color deviations and verify consistency between panels, batches, and production runs.

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04

Color measurement documentation

Document measured results for production records, quality assurance, customer approval, and comparison with defined panel to panel tolerances.

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Recommended Add ons for Digital Backlit Printing

Extend the capabilities of your Spectro LFP qb with accessories purpose-built for transmissive and backlit measurement.
Frame Transmission Sample Holder for M1 measurements

Frame Transmission Sample Holder for M1 measurements

Enables M1-compliant transmission measurements per ISO 13655.

A precision frame holder for transmission measurements requiring M1 measurement conditions per ISO 13655. Accommodates films, transparencies, and backlit substrates while ensuring consistent positioning and repeatable measurement geometry.
Set of 2 Sample Holders for thick and heavy media

Set of 2 Sample Holders for thick and heavy media

Securely fixes rigid and heavy substrates up to 20 mm for safe automated measurement.

A pair of dedicated holders for measuring thick, rigid or heavy materials such as ceramic, glass, wood, plexiglas and rigid plastics. Holds substrates flat and stable during automated chart measurement, supporting media up to 20 mm thick on the Spectro LFP qb.
C041H50 Transmission Sample Holder Spectro Swing

C041H50 Transmission Sample Holder Spectro Swing

Sample holder for transmission measurement on the Spectro Swing qb.

Sample holder for the Spectro Swing qb, enabling consistent positioning of films, transparencies and backlit materials during transmission measurement.

See how industry leaders use Barbieri.

View all Case Studies
Packaging & Label

CGS ORIS GmbH

CGS ORIS GmbH is a leading developer of color management solutions, contract proofing systems, and workflow software for the printing industry.
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Textile

Sync-Innovation

SYNC-INNOVATION is a Japanese one-stop shop for consumer goods, integrating design, production, inventory, and delivery for major e-commerce platforms.
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Textile

FUTURE FASHION

The company operates in the garment manufacturing industry, with a strong focus on sportswear production and sublimation-based textiles.
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