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Papermaking

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.

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Papermaking

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  1. Papermaking Andreas Tauber

  2. Principle • Extraction of cellulose • Pressing the moist fibers together • Letting the sheet dry

  3. Raw Materials • Wood (about 33%) • Recovered Paper (about 67%) • Water (100-120L per 1kg Paper)

  4. Processes • Pulping & Bleaching • Pressing & Drying • Coating & Cutting

  5. Pulping & Bleaching • Pulping • Mechanical pulping • Chemical pulping • Bleaching • Peroxides • Chlor • Ozone

  6. Pressing & Drying • Two steps (wet end, dry end) • One machine

  7. Coating & Cutting • Coatings for special papers (photopaper, etc) • Normed formats (DIN A4 for example)

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