In Press Conditions and its Effect on Runnability and Convertability in Digital Package Printing

• A major advantage of digital printing is that printing can be performed ondemand, but as all printing techniques it suffers from its specific runnability problems. This study reports on an investigation of problems during printing and how to improve the runnability, with the aim of pointing out the most critical factors. Test printing has been performed on three different paperboard types in digital print units based on both dry and liquid toner electrophotographic technology. Results show that the three main problems during printing were; feeding in sheet fed print units, cutting in web fed print units and increasing curl after printing. Feeding problems in sheet fed print units were mainly explained by curl and varying format size of the paperboard, but also by exceeding thicknesses limits for the press. Curl after printing principally occurred due to high temperature loads caused by, for example, fusing and conditioning.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

Digital Printing

Paperboard

Runnability

Improvements

Other electrical engineering, electronics and photonics

Övrig elektroteknik, elektronik och fotonik

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)