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Finishing department

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  • 1. Finishing1 Finishing Departement | Sappi Fine Paper Europe
  • 2. Contents 1. Introduction 3 1.1. Finishing in the production process 4 1.2. Finishing installations 5 2. Calender 6 2.1. Effect on paper properties 7 2.2. Soft calender 8 2.3. Supercalender 10 2.4. Janus calender 13 3. Slitting 16 4. Reel packaging & labeling 19 5. Cutting 21 5.1. Schematic drawing 22 5.2. Slitter 23 5.3. Cutter 24 5.4. Braking section 25 5.5. Counting strips, 2-reel mounting, triple cut 26 6. Sheet packaging & pallet labeling 27 7. Reama & ream labels 29 8. Logistics 312 Finishing Departement | Sappi Fine Paper Europe
  • 3. 1. Introduction (Finishing • Definition: – According to customer specifications, the paper is cut in reels or sheets and packaged • Purpose: – Eliminating imperfections – Dividing the paper into sales units – Protecting the paper against climatic conditions, moisture etc. – Marking the product with identifying labels • Configuration criteria – Sheets:  Web direction: long grain, short grain  Packaging: unreamed with or without counting strips, ream wrapped  Pallett: height, weight, sheets – Reels:  Width, diameter, core, weight tolerance3 Finishing Departement | Sappi Fine Paper Europe
  • 4. 1.1. Finishing in the production process Finishing – making the paper ready for the customer Coater (+ calender) – paper improvement Paper machine – paper production (sheet formation) Stock preparation – mixing the raw materials, fillers, additives Collecting raw materials4 Finishing Departement | Sappi Fine Paper Europe
  • 5. 1.2. Finishing installations • Overview – Calender (satination) – Slitter-rewinder – Reel packaging machine – Sheet & ream packaging machine Paper storage as an independent part of logistics • Paper improvement – Satination, just likecoating, can be part of the improvement process – Online calender as part of the paper machine Paper production Coating Satination Finishing Paper improvement5 Finishing Departement | Sappi Fine Paper Europe
  • 6. 2. Calender • Purpose: – Making the paper smooth (mechanical process) and glossy (optical property)  Surface plasticizing • Method: – Physical processes – ironing effect - triggers  Pressure (mechanical)  Moisture exchange (hydrostatic)  Thermal force – administering heat - convection • Available components: – Heated steel rolls, unheated paper rolls – Heated steel rolls – unheated plastic rolls or rubber rolls • Impacting parameters: – Paper: temperature, humidity, surface mass, fibre material, fillers – Coating: humidity, temperature, mass, binding agents, pigments – Calender: roll temperature, roll roughness, roll surface, bending compensation, line force, nip pressure, number of nips, dwell time, velocity6 Finishing Departement | Sappi Fine Paper Europe
  • 7. 2.1. Effect on paper properties • Advantages of calendering: – Enhanced smoothness, enhanced gloss – Decreased air permeability, decreased oil absorption • Disadvantages of calendering: – Increased density – Decreased thickness, stiffness, opacity, whiteness, rub resistance Base paper Coated paper + Calendered7 Finishing Departement | Sappi Fine Paper Europe
  • 8. 2.2. Soft calender Components: heated steel rolls, rubber or plastic rolls  higher pressure, lower temperature Plastic or rubber rolls Heated Paper web steel rolls Higher pressure – lower temperature8 Finishing Departement | Sappi Fine Paper Europe
  • 9. 2.2.1. Soft calender Pictures9 Finishing Departement | Sappi Fine Paper Europe
  • 10. 2.3. Supercalender10 Finishing Departement | Sappi Fine Paper Europe
  • 11. 2.3.1. Supercalender Components: heated steel rolls and paper rolls  low pressure, high temperature11 Finishing Departement | Sappi Fine Paper Europe
  • 12. 2.3.2. Supercalender Pictures12 Finishing Departement | Sappi Fine Paper Europe
  • 13. 2.4. Janus calender Components: heated steel rolls, paper rolls  high pressure, high temperature Steel roll Steel roll Plastic roll Plastic roll13 Finishing Departement | Sappi Fine Paper Europe
  • 14. 2.4.1 Janus calender • Combined advantages of supercalender and soft calender – High pressure, high temperature • Additionally: – Nip Protect System for fast and secure roll separation – Special tool for easier roll changes14 Finishing Departement | Sappi Fine Paper Europe
  • 15. 2.4.2 Janus calender Pictures15 Finishing Departement | Sappi Fine Paper Europe
  • 16. 3. Slitter Knife Daughter reels Mother reel16 Finishing Departement | Sappi Fine Paper Europe
  • 17. 3.1. Reel cutter Secundary stations Daughter reels17 Finishing Departement | Sappi Fine Paper Europe
  • 18. 3.2. Type - Vari Dur Reel cutter Mother reel Daughter reels Support rolls18 Finishing Departement | Sappi Fine Paper Europe
  • 19. 4. Reel packing installation19 Finishing Departement | Sappi Fine Paper Europe
  • 20. 4.1. Reel label (Allegro)20 Finishing Departement | Sappi Fine Paper Europe
  • 21. 5. Cutter Overview21 Finishing Departement | Sappi Fine Paper Europe
  • 22. 5.1. Schematic drawing22 Finishing Departement | Sappi Fine Paper Europe
  • 23. 5.2. Slitter Blade Paper web23 Finishing Departement | Sappi Fine Paper Europe
  • 24. 5.3. Cutter Blade24 Finishing Departement | Sappi Fine Paper Europe
  • 25. 5.4. Braking section Fixing rolls Paper web25 Finishing Departement | Sappi Fine Paper Europe
  • 26. 5.5. Counting strips, 2-reel mounting, triple cut26 Finishing Departement | Sappi Fine Paper Europe
  • 27. 6. Sheet packaging Pressure beam Label applied by robotic arm Pallet27 Finishing Departement | Sappi Fine Paper Europe
  • 28. 6.1. Pallet label Pallet label nr. 11028 Finishing Departement | Sappi Fine Paper Europe
  • 29. 7. Ream Wrapped reams in neutral packaging29 Finishing Departement | Sappi Fine Paper Europe
  • 30. 7.1. Ream labels Improved layout Easier identification Label print with emphasis on Black print on white label brand, gsm & surface Standard label size (210x12mm) Already standard in most of Sappi’s mills, this size enables safe handling of XL format sizes throughout the supply chain30 Finishing Departement | Sappi Fine Paper Europe
  • 31. 8. Logistics High shelves storage and truck transport31 Finishing Departement | Sappi Fine Paper Europe
  • 32. Thank you for your attention Jörg Abelmann32 Finishing Departement | Sappi Fine Paper Europe