Dynamic of Capillarity

Measuring principle

  • Indirect determination of the dynamics by ultrasonic transmission measurement emcoDPM via air elimination by penetrating monopolar liquid into the cavities of the paper.
  • By sample preparation on a carrier, one-sided or two-sided liquid contact is possible.
  • Measurements with monopolar liquids, standardised n-heptane.
  • Fibrillation of the fibre wall (refining) becomes visible.

Measurements and results

  • emco1 (tStart) to emco7 (tEnd) of page 1 and 2 in the printing process-relevant period (tStart to tEnd), which is chosen according to the print technique

Significance for the printing process

  • Ink absorption
  • Ink drying
  • Ink anchorage
  • Ink construction
  • Colour impression, gloss
  • Intensity range of printing speed
  • Sideness (differences between side 1 and side 2)
  • Printing phenomena: smudging, depositing, block up, agglutinate, doubling, ghosting, hardening

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Further products

emco DPM

The dynamic penetration measurement of emco used as an innovative method for analysis of the nature of paper and other materials, liquids and the dynamic of their interaction.