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Pulp and paper industry

Rollers for production and processing

High demands on mechanics, dimensional accuracy and service life: the production and processing of paper is complex and demanding. MITEX offers high performance coatings for the industry that allow performance improvements and offer decisive advantages.  

Below are examples of a few industry challenges with suggested solutions. For more information or a no-obligation recommendation from our engineers for your application, please contact us directly.

Weak and uneven depth embossing
1 Lösungsvorschläge
Ursachen
  • Demanding plowing patterns
  • High process speeds
  • Increased deflection of older embossing cylinders
Effekte
  • Inaccurate embossing
  • Insufficient embossing
  • Different embossing intensities
  • Insufficient volume of embossed rolls

When embossing tissue and hygiene papers, the combination of a high, tightly standing embossing pattern and increased process speed can lead to inaccurate and insufficiently deep embossing. This phenomenon is exacerbated across the web width due to the higher deflection of older cylinders. Due to these embossing errors, insufficient volume is achieved for a given number of sheets.

Irregular engraving
2 Lösungsvorschläge
Ursachen
  • High mechanical load
  • Abrasion by fibers and media
  • Coating unsuitable for load
Effekte
  • Reduction of surface roughness
  • Slippage
  • Disturbances in the application pattern
  • High change intervals

The mechanical stress caused by starch or pulp, for example, leads to a reduction in surface roughness due to abrasion or smoothing and thus to a change in the coating. This ultimately leads to a shorter service life of coating, sizer or backing rolls.

Excessively short service life of applicator rolls
2 Lösungsvorschläge
Ursachen
  • High mechanical load
  • Abrasion by fibers and media
  • Coating unsuitable for load
Effekte
  • Reduction of surface roughness
  • Slippage
  • Disturbances in the application pattern
  • High change intervals

The mechanical stress caused by starch or pulp, for example, leads to a reduction in surface roughness due to abrasion or smoothing and thus to a change in the coating. This ultimately leads to a shorter service life of coating, sizer or backing rolls.