Identity elements
Reference code
Name and location of repository
Level of description
Item
Title
D99441-12
Date(s)
- 1956-06-27 (Creation)
Extent
Name of creator
Content and structure elements
Scope and content
Paper and pulp production at the R.W. Paper Co. in Longview, Wa. A worker controls the amount of liquid pouring on the rollers by means of a valve, as part of the pulp manufacturing process. Wood is composed of cellulose fibers that are cemented together with a substance called lignin. To transform wood into pulp, the fibers must be separated. This separation is done using either a mechanical or a chemical process. Wood is cooked in huge vats with chemicals. The combined actions of heat and the chemicals dissolve the lignin. The pulp is then bleached, using chemicals that make it not only whiter but also more resistant and absorbent. Photographs ordered by Malcolm McGhie.
R. W. Paper Co. (Longview); Paper industry--Longview--1950-1960;