IMAGE ANALYSIS OF AN LWC PAPER REVEALS WIRE MARK IN THE PRINT DENSITY VARIATIONS.

Michael A. MacGregor, Terrance E. Conners

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Microscopic observations were combined with image analysis to study the causes of apparently random 'speckles' and 'blotches' in a lightweight coated publication paper printed on a four-color web offset press. The speckles were areas of lower print density lying over areas of greater coating thickness. Much of the higher frequency variation in print density corresponded exactly with the forming fabric pattern. Thus, some of the small-scale print nonuniformities often attributed to the coating process itself are actually caused by the basesheet.

Original languageEnglish
Pages (from-to)95-99
Number of pages5
JournalTappi Journal
Volume70
Issue number9
StatePublished - Sep 1987

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Media Technology
  • General Materials Science
  • Mechanical Engineering

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