Speed-invariant, on-press color quality measurements

Conference · Tue Dec 03 04:00:00 EST 1991

OSTI ID:10136440

Simpson, M L; Bliss, R F; McMillan, D E; Nodine, R N; Goddard, J S

Color measurement is an important aspect of quality control for graphic printing press operation. Normally, measurements of color quality are performed by sampling the product off-line, in which case feedback to press operators is not available in a timely manner. On-press measurement of color quality provides timely feedback to the press operators; however, maintaining the accuracy of the measurement in a dynamic setting is not trivial. In this paper, a colorimeter measurement system using commercially available equipment is described for making reliable, on-press color measurements. The system was demonstrated on a web test bed running loops of printed graphic images. Examples of commercially printed graphic material include product labels, packaging, stamps, and wall paper. Resulting color measurements were shown to be highly sensitive to variations in color-content while maintaining invariance to web speeds as high as 500 ft/min. 6 refs.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10136440
• Report Number(s): CONF-9204109--1; ON: DE92010429
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303
440600
47 OTHER INSTRUMENTATION
COLOR
DESIGN
EQUIPMENT AND PROCESSES
FEEDBACK
FIBER OPTICS
IMAGE PROCESSING
IMAGES
INSPECTION
MEASURING INSTRUMENTS
OPTICAL INSTRUMENTATION
OPTICAL SYSTEMS
PHOTODETECTORS
PRINTING AND PUBLISHING INDUSTRY
QUALITY CONTROL