paper technology : wood pulp - bleaching 1
DESCRIPTION
TRANSCRIPT
| [Presentation title] | [Client Name] | [Date] 1
Paper technology
Wood pulp / Bleaching (1)
Technical Support
Sappi Fine Paper Europe
| [Presentation title] | [Client Name] | [Date] 2
Paper technology
From wood to coated paper
| [Presentation title] | [Client Name] | [Date] 3
Paper technology
PAPER
Fibrous substances / wood pulp Process materials Water
| [Presentation title] | [Client Name] | [Date] 4
Thinnings
Lumbering of a released stem Thinnings
Dispatch to the paper mill Diseased wood for paper production
| [Presentation title] | [Client Name] | [Date] 5
Wood trunk
Rind or bark
Bast
Annual rings
Cambium
Spring wood
Autumn wood one annual ring
Pith
Medullary ray
Heart wood
Splint wood
| [Presentation title] | [Client Name] | [Date] 6
Wood types
Eucalyptus
Poplar
Birch
Beech
Deciduous wood (approx. 20%)
Pine
Fir
Spruce
Coniferous wood (approx. 80%)
Types of wood for the paper production
| [Presentation title] | [Client Name] | [Date] 7
Wood types
Birch Poplar Beech Eucalyptus
Spruce Fir Pine
| [Presentation title] | [Client Name] | [Date] 8
Beech trunks
| [Presentation title] | [Client Name] | [Date] 9
Slabs
| [Presentation title] | [Client Name] | [Date] 10
Chips
| [Presentation title] | [Client Name] | [Date] 11
Pulping
MP Mechanical pulp
(mechanical pulp)
yield 90-96%
Mechanical
TMP Thermo-mechanical-
pulp
yield 90-96%
Thermo-mechanical
CTMP Chemi-thermo- mechanlcal-pulp
yield 85-90%
Chemi-
thermo-mechanical
Sulphate process
(alkali)
yield 43-52%
Sulphite process
(acid)
yield 43-52%
Chemical
Pulping process
| [Presentation title] | [Client Name] | [Date] 12
Wood preparation
Wood place
Round wood
feeding
system
Unbarking
Round wood
washing
Metal detector
Chipper
Chopped
Chips
| [Presentation title] | [Client Name] | [Date] 13
Unbarking drum
| [Presentation title] | [Client Name] | [Date] 14
Chopped chipper apparatus
| [Presentation title] | [Client Name] | [Date] 15
Chips