Adara Pakkaus Oy produces high-quality packaging and shelf-ready retail packaging. This includes sustainable production, from corrugated board to impeccable printing, using the latest flexo and digital printing techniques.
For consistent high quality, optimal working conditions and minimized energy use and waste, Adara deploys cleaning systems that remove the most significant cause of waste and quality complaints: dust, trim and microparticles. The results of these systems are measured to gauge the effect on quality and health.
Following the successful deployment of a Weducon Corrucleaner after the slitter/scorer, Adara recently expanded its BHS corrugator with a new Weducon HE-Series sheet cleaner in the cut-off section of the machine.
Why sheet cleaning after the cut-off section?
Cleaning after the cut-off section has become a current requirement to produce clean, printable corrugated board, even if cleaning already takes place after the slitter/scorer.
This is mainly due to today’s use of serrated knives in the cut-off process. Although serrated knives have longer tool life than plain knives, they produce a fourfold increase in cutting dust. Dust that enters the production environment and clings to the corrugated board. Therefore, eliminating dust after the cut-off section is essential to avoid contamination of the printing units, which causes waste, additional cleaning stops and print defects.
Since replacing a previous cleaning system in the slitter/scorer with a Weducon web cleaner had already doubled wash distances on the printing units, expectations were high for this additional cleaning stage.
Careful preparation once again ensured rapid installation in the BHS corrugator, without interrupting production or requiring undesirable modifications to the existing equipment.
Both levels of the cut-off are equipped with made-to-measure Weducon HE-Series sheet cleaners.
AIG 2.0 controls the web cleaner after the slitter/scorer and the sheet cleaners after the cut-off section.
Customer-reported measured results
Following several weeks of measurement after installation of the sheet cleaners in the cut-off section, Adara Pakkaus reported the following production results:
- 40% reduction in dust measured at the Göpfert printing machine.
- 46% reduction in production stops required for cleaning printing plates (clichés).
The impact of these results on daily production is summarized below by Adara Pakkaus’ Head of Printing, Lari Seppälä:
When we replaced an existing web cleaner between the slitter/scorer and drive-train with the Corrucleaner, it halved the time used in production for washing.
After installing the sheet cleaners at the cut-off?
We halved it again!Lari Seppälä, Head of Printing, Adara Pakkaus Oy
If cleaning after the cut-off is so effective, why still use a web cleaner after the slitter/scorer?
The answer is that removing dust directly at the source prevents:
- Contamination of the production environment, which results in extra cleaning work and energy use
- Contamination and premature wear of bearings and switch boxes
- Airborne dust and, therefore unhealthy strain on the lungs
- Difficult to remove dust that has been forced into the substrate after the slitter/scorer by the drive train
Want to know more about the benefits of web and sheet cleaning in your production?
Do you want to learn more about the benefits of effective web and sheet cleaning in your production process? Get in touch, we look forward to hearing from you.
Installation details and context: Adara Pakkaus cut-off sheet cleaning
Adara Pakkaus Oy, Valkeakoski, Finland
Corrugator: BHS, 2,500 mm, year 2018
Substrate: Corrugated board
Flute sizes: E, B, C, E/B, E/C, B/C
Application: Corrugated board production for flexo and direct-to-board digital printing
Production speed: 350 m/min
Web width: 2,500 mm
Printing presses: Göpfert, HP
Existing cleaning stage: Weducon Corrucleaner HE-90 after the slitter/scorer
Additional cleaning position: After the cut-off section
Additional cleaning system: Weducon Corrucleaner HE-Series sheet cleaners
Control: AIG 2.0
