Products Description

Technical Specifications

RAW MATERIALS FOR MAKING KRAFT PAPER:

The kraft process, sometimes called “Kraft Pulping” or the “Sulfate Process,”

is the process by which wood is turned into wood pulp, the main component

of the paper. Wood chips are treated with a hot mixture of water, sodium hy-

droxide (NaOH), and sodium sulfide (Na2S) in large pressure vessels called

digesters. These large devices can hold 10-20 tons of pulp and come in two

processing types: batch and continuous. This chemical mixture breaks down

the bonds that link lignin, hemicellulose, and cellulose. One of the major benefits

of kraft pulping is that roughly 90% of the pulping chemicals can be recovered

and reused in an economical manner. This makes the process more sustainable

and affordable at the same time.