Equipment/methods
Innventia uses several laboratory printing presses (IGT, Prüfbau and ISIT) to predict printability using a variety of printing methods. The laboratory printing presses allow the printability of paper and board to be predicted. The methods have been developed to emphasize on different important phenomena e.g. ink demand, ink tack, set-off, print unevenness and linting.
 
There are also several methods available for characterisation of the paper and board surfaces and we have the possibility to modify and produce test surfaces by laboratory and pilot-scale forming, coating and calendering.
 

Printability testing

  • Offset ink demand
  • Offset ink setting test
          o ISIT
          o Set-off stamp test for full-scale printing
  • Offset ink adhesion - Innventia method
  • Print abrasion (ink scuff)
  • Print mottle
          o Back trap
          o Water interference
  • Print quality of inkjet prints
  • Flexography printing IGT F1 test
  • Fibre rising
  • Dusting and linting - Innventia method
          o LintPick and LitoLintPick Test
          o On-line lint measurement
     

Print quality measurements

  • Print gloss
  • Print gloss variation (macro and micro gloss variations) - Innventia method
  • Print mottle - Innventia method
  • Uncovered area after flexo printing - Innventia method

Surface characterization and testing

  • Surface topography
          o Air leakage test (PPS)
          o OptiTopo - Innventia method
          o FRT MicroProf
          o Microscopic characterization
  • Paper surface response under pressure (LCSA) - STFI-Packforsk method: measure contact area and uniformity in pressure uptake
  • Porosity from mercury porosimetry
  • Short time absorptivity - Innventia method
  • Contact angles, surface energy and acid-base properties (Fibro DAT)
  • Surface strength (wet and dry pick)
  • Mechanical properties of coating layer - Innventia method
  • Cockling (DST 1230) and Curl
  • Moisture content (MCA 1410)
Print

Contacts

Birgitta Alm

+46 8 676 7037

Send e-mail

Hans Christiansson

+46 8 676 7381

Send e-mail

Publications

Analysis of paper surface topography under compression
Teleman A, Östlund C, Nordström J-E, Johansson P-Å, Vomhoff H
STFI-Packforsk report 217

Development of a method for the analysis of paper surface topography under compression
Teleman A, Östlund D, Johansson P-Å, Hornatowska J, Vomhoff H
STFI-Packforsk report 212