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Circular action treatment (CAT): a new strategy for mechanical treatment of old corrugated containers II – comparison of CAT with low-consistency beating

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Published/Copyright: July 21, 2018
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Nordic Pulp & Paper Research Journal
From the journal Nordic Pulp & Paper Research Journal Volume 33 Issue 3

Abstract

In Korea, old corrugated containers (OCC) are a common material for paperboard production. Unfortunately, the quality of Korean OCC (KOCC) is low due to irreversible effects such as hornification that could occur by repeated drying and wetting during paper recycling. Generally, beating is a fibrillation method for improving paper strength. However, beating also results in fiber shortening and excessive fines. Circular action treatment (CAT) is a new method designed for the mild mechanical treatment of KOCC containing undesirable materials and fines. The effect of CAT and low-consistency beating on KOCC were analyzed at various conditions. The results show that increased revolution speed and passing length of CAT resulted in higher water retention values and paper strength without a sudden change in the freeness, fiber length and fines content. While paper strength was higher upon beating compared to the case of CAT, the intensive beating action in the former resulted in fiber damage, generating excessive fines and decreasing fiber length. The fines generated by beating might be negative to retention and drainage in wet-end. Therefore, CAT is a promising new strategy for KOCC mechanical treatment, and an increase in the revolution speed and passing length of CAT could improve KOCC quality.

Keywords: circular action treatment; fiber flexibility; low-consistency beating; paper strength; recycled fibers

  1. Conflict of interest: No authors have directly received research funding and/or potential conflicts of interest. There is no consultancies, stock, ownership, equity interest, licensing, etc.

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Received: 2018-03-18
Accepted: 2018-06-05
Published Online: 2018-07-21
Published in Print: 2018-09-25

© 2018 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Editorials
  3. Farewell and good luck to Nordic Pulp & Paper Research Journal
  4. Change of Editor-in-Chief
  5. Biorefinery
  6. Kinetic study on the decomposition of cellulose into 5-hydroxymethylfurfural in an ionic liquid/organic biphasic system
  7. Antibacterial evaluation of CNF/PVAm multilayer modified cellulose fiber and cellulose model surface
  8. Chemical pulping
  9. Dewatering properties of low grammage handsheets of softwood kraft pulps modified to minimize the need for refining
  10. NSSC pulping of fast growing trees
  11. Addition of corn fiber xylan to eucalyptus and pinus pulp and its effect on pulp bleachability and strength
  12. Recovery
  13. Removal of hazardous trace elements from green liquor dregs by mechanical separation methods
  14. Bleaching
  15. Additives to decrease cellulose chain scission during ozone bleaching of wheat straw pulp
  16. Mechanical pulping
  17. Comparative properties of nanofibers produced using unbleached and bleached wheat straw pulps
  18. Effects of chip pretreatment and feeding segments on specific energy and pulp quality in TMP production
  19. An experimental study of the chipping process with focus on energy consumption and chipping angles
  20. Average fibre length as a measure of the amount of long fibres in mechanical pulps – ranking of pulps may shift
  21. Paper technology
  22. The effect of in-line foam generation on foam quality and sheet formation in foam forming
  23. The wet strength of water- and foam-laid cellulose sheets prepared with polyamideamine-epichlorohydrin (PAE) resin
  24. Manufacture of high bulk paper using alkali swollen kraft pulp
  25. Paper physics
  26. The impact of zeolite filler on ageing and mechanical failure of paper
  27. The relationship between shrinkage and elongation of bleached softwood kraft pulp sheets
  28. Paper chemistry
  29. Engineered porous calcium silicate as paper filler: effect of filler morphology on paper properties
  30. Printing
  31. Edge spread function for the paper-ink system
  32. Packaging
  33. Lignin-containing coatings for packaging materials
  34. Environmental impact
  35. Application of Fenton’s reagent degrades dissolved and colloidal substances in old corrugated container white water
  36. Quick estimation for pollution load contributions of aromatic organics in wastewater from pulp and paper industry
  37. Recycling
  38. Circular action treatment (CAT): a new strategy for mechanical treatment of old corrugated containers II – comparison of CAT with low-consistency beating
  39. Corrigendum
  40. Corrigendum to: The influence of bar width on bar forces and fibre shortening in low consistency pulp refining
https://doi.org/10.1515/npprj-2018-3049
Keywords for this article
circular action treatment; fiber flexibility; low-consistency beating; paper strength; recycled fibers

Articles in the same Issue

  1. Frontmatter
  2. Editorials
  3. Farewell and good luck to Nordic Pulp & Paper Research Journal
  4. Change of Editor-in-Chief
  5. Biorefinery
  6. Kinetic study on the decomposition of cellulose into 5-hydroxymethylfurfural in an ionic liquid/organic biphasic system
  7. Antibacterial evaluation of CNF/PVAm multilayer modified cellulose fiber and cellulose model surface
  8. Chemical pulping
  9. Dewatering properties of low grammage handsheets of softwood kraft pulps modified to minimize the need for refining
  10. NSSC pulping of fast growing trees
  11. Addition of corn fiber xylan to eucalyptus and pinus pulp and its effect on pulp bleachability and strength
  12. Recovery
  13. Removal of hazardous trace elements from green liquor dregs by mechanical separation methods
  14. Bleaching
  15. Additives to decrease cellulose chain scission during ozone bleaching of wheat straw pulp
  16. Mechanical pulping
  17. Comparative properties of nanofibers produced using unbleached and bleached wheat straw pulps
  18. Effects of chip pretreatment and feeding segments on specific energy and pulp quality in TMP production
  19. An experimental study of the chipping process with focus on energy consumption and chipping angles
  20. Average fibre length as a measure of the amount of long fibres in mechanical pulps – ranking of pulps may shift
  21. Paper technology
  22. The effect of in-line foam generation on foam quality and sheet formation in foam forming
  23. The wet strength of water- and foam-laid cellulose sheets prepared with polyamideamine-epichlorohydrin (PAE) resin
  24. Manufacture of high bulk paper using alkali swollen kraft pulp
  25. Paper physics
  26. The impact of zeolite filler on ageing and mechanical failure of paper
  27. The relationship between shrinkage and elongation of bleached softwood kraft pulp sheets
  28. Paper chemistry
  29. Engineered porous calcium silicate as paper filler: effect of filler morphology on paper properties
  30. Printing
  31. Edge spread function for the paper-ink system
  32. Packaging
  33. Lignin-containing coatings for packaging materials
  34. Environmental impact
  35. Application of Fenton’s reagent degrades dissolved and colloidal substances in old corrugated container white water
  36. Quick estimation for pollution load contributions of aromatic organics in wastewater from pulp and paper industry
  37. Recycling
  38. Circular action treatment (CAT): a new strategy for mechanical treatment of old corrugated containers II – comparison of CAT with low-consistency beating
  39. Corrigendum
  40. Corrigendum to: The influence of bar width on bar forces and fibre shortening in low consistency pulp refining
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