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Papermaking Andreas Tauber

Papermaking

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Papermaking. Andreas Tauber. Principle. Extraction of cellulose Pressing the moist fibers together Letting the sheet dry. Raw Materials. Wood (about 33%) Recovered Paper (about 67%) Water (100-120L per 1kg Paper). Processes. Pulping & Bleaching Pressing & Drying Coating & Cutting. - PowerPoint PPT Presentation

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Papermaking

Andreas Tauber

Principle

Extraction of cellulose Pressing the moist fibers together Letting the sheet dry

Raw Materials

Wood (about 33%)

Recovered Paper (about 67%)

Water (100-120L per 1kg Paper)

Processes

Pulping & Bleaching Pressing & Drying Coating & Cutting

Pulping & Bleaching

Pulping Mechanical pulping Chemical pulping

Bleaching Peroxides Chlor Ozone

Pressing & Drying

Two steps (wet end, dry end)

One machine

Coating & Cutting

Coatings for special papers (photopaper, etc)

Normed formats (DIN A4 for example)