Woraus paper besteht
A material made of plant fibres; the oldest find is from Fangmatan (2nd century BC), and Cai Lun improved the technique (105).
- Paper machine — nutzt. Industrial production.
- Zellulose — ist hergestellt aus. Paper is cellulose fibres.
- Bleichmittel — ist hergestellt aus. Bleach makes paper white: without it wood pulp would be yellowish grey.