This is done using chlorine or oxygen-based chemicals to remove any residual coloring agents while maintaining the integrity of the fiber structure. This chemical cooking dissolves the lignin, freeing the individual cellulose fibers to form a strong, flexible mat known as pulp.
Sustainable Wood Paper Making Process
Finally, the paper is trimmed into specific sizes and packaged for distribution. This coating fills the gaps between the fibers, resulting in a smoother, more opaque surface that improves ink holdout and image sharpness.
The result is a continuous sheet of paper known as a "web," which is then wound onto a massive reel. A series of rollers then press the sheet to remove more water and compact the fibers, followed by massive heated dryers that reduce the moisture content to less than 6%.
Sustainable Wood Paper Making Process: Chemical Cooking and Fiber Liberation
This process crushes the wood fibers without removing the lignin—the natural polymer that binds the cellulose together—resulting in a high yield of material. Coating and Finishing To enhance the printing surface, the paper may undergo a coating process.
More About Making paper from wood
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