Barbieri Spectro Swing qbDescription Barbieri Spectro Swing qb The fully automated Spectro Swing qb is designed to measure color charts on a variety of flexible and non flexible substrates up to 1. 2 mm with paper like properties. The built in Barbieri qb technology delivers high precision spectral color measurement data for various digital printing applications like high speed digital inkjet, roll to roll inkjet and label printing. The Barbieri Spectro Swing qb 6 mm is a