When it comes to making pulp for paper, manufacturers can pick materials from a number of resources. These resources include the following:
Forests
The most common source of paper is trees and the most sourced trees include birch, spruce, pine, larch, eucalyptus, fur, etc. Manufacturers use the lesser desired parts of the trees to prepare the pulp, while the better parts go for construction purposes. At the current time, they also source pulp from the raw materials of cow dung to develop natural paint and paper products. UEC’s cow dung refiner for prakratik paint is among the most sought machines that refine these fibers and make them ready for use.
Cotton and other natural fibers
Cotton fibers are strong and high in strength. Therefore, they are often used to create documents that are required to be archived. Pulp from cotton and other natural fibers is also popularly used for letterhead and business stationery due to its high durability and richness.
Recycled fibers
Recycled fibers are those that do not require the re-cutting of trees. These fibers are developed from paper waste in the paper manufacturing industries, recycled books, newspapers, and other products as well as sawdust.
The pulp is produced using two major processes. They are:
Mechanical Pulping
This pulping process uses mechanical energy to develop the pulp. At first, the wood logs are grounded or the wood chips are refined. They are then screened, cleaned, and showered on thickeners and grinding stones.
Chemical Pulping
The chemical pulping process treats debarked, ground wood or chips with powerful solutions in order to dissolve lignin and hemicellulose, which binds these fibers together. For paper making, these fibers are further washed and sometimes bleached. Chemical pulps are often beaten in a high precision beater like a laboratory PFI mill to defiber them.
Conclusion
UEC houses a wide range of pulp testing machines that help manufacturers develop the right pulp to make high-quality paper. Get in touch with us to discuss your requirement today and take your business to the next big level.
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