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Rolls of newsprint
Label on the roll

Newsprint is a type of paper that has a short lifespan (10 to 50 years, longer if stored properly) and poor weather resistance (a property that is not particularly valued in books ). In contrast, it is comparatively inexpensive and has good printing properties, such as a high degree of color fastness . In addition, it is very light, 40-52 grams per square meter , easy to fold and handle. It's made (at least in large part) from recycled waste paper . The newsprint used today has served as a basis for daily and weekly newspapers for more than 100 years , but not for magazines whose paper has different requirements.

The environment is tarnished by discarded newspaper, but it is not polluted because it rots after a few months under appropriate conditions.

The reason why newsprint yellows over time under the influence of (sun) light and oxygen supply is that it is not made of pure cellulose , but also contains lignin . During the yellowing, an intense smell of vanillin , a breakdown product of lignin, develops . The yellowing effect can be achieved by bleaching the lignin-containing pulp e.g. B. reduce with sodium dithionite . In almost all other commercially available papers, the lignin is chemically dissolved out, but this would be to the disadvantage of the reader in newspapers. Because it not only gives the fiber composite in the tree toughness, but also the fiber composite in the paper. Due to the small thickness of newsprint and the relatively large area, a wood-free paper would only hang down limply at the corners and bend everywhere (comparable to Bible printing paper ). Lignin increases the opacity favorably so that - in incident light - the printing on the back of the paper does not show through, whereas wood-free paper is more translucent.

The Voith PM 1 - installed at Rhein Papier in Hürth - set a new speed record in the production of newsprint in 2003 with 1912 meters per minute (corresponds to a movement of the paper web at 115  km / h ).

The world's largest producers of newsprint are RFP , Norske Skog , UPM-Kymmene , Nippon Paper Group , Stora Enso and Oji Paper .

Individual evidence

  1. Werner Baumann, Herberg-Liedtke: Paper chemicals: data and facts on environmental protection. Volume 2, Springer, 1994, ISBN 978-3-540-56269-6 , p. 231.
  2. Otto-Albrecht Neumüller (Ed.): Römpps Chemie-Lexikon. Volume 4: M-Pk. 8th revised and expanded edition. Franckh'sche Verlagshandlung, Stuttgart 1985, ISBN 3-440-04514-5 , pp. 2981-2986.
  3. Presentation Resolute Forest Products , November 30, 2017, p. 23