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Language: English
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Supplemental and Recycled Fiber Series (Details)Includes 13 courses for $499/year. Pulping Library (Details)Includes 72 courses for $1,499/year.
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Training Time: 17 minutes
Compatibility: Desktop, Tablet, Phone
Based on: Industry Standards and Best Practices
Languages: English
Wood fiber accounts for more than 90% of the raw material used in the production of paper and board products, and it can come from a variety of sources. These sources can be slushed virgin fiber that is produced onsite, market pulp from other pulp mills, or recycled/secondary fiber. This course will cover the preparation and screening of market pulp and recycled fiber at papermaking facilities.
Supplemental and Recycled Fiber - Bale Handling
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Supplemental and Recycled Fiber - Fiber Cleaning
Supplemental and Recycled Fiber - Fiber Fundamentals
Supplemental and Recycled Fiber - Recycling Fiber Overview
Supplemental and Recycled Fiber - Rejects Handling
The following key questions are answered in this module:
What is market pulp?Market pulp is the term applied to virgin fiber which has been produced at a pulp mill, partially dried, and then shipped to a paper mill to be repulped and made into paper.
What is the difference between "pulping" and "repulping"?Pulping uses chemicals or intense mechanical action to break down raw sources of cellulose, typically wood, to produce fibers which can be made into paper. Re-pulping is the mixing and agitation of existing paper or market pulp with water to create a fiber suspension which can be used to re-manufacture paper or board products.
What are important repulper operating variables?Efficient fiber repulping requires controlling the consistency and level in the repulper.
What is "deflaking"?After recycled paper is repulped, there usually are fiber bundles or flakes which would interfere with papermaking. Deflaking is a mechanical shearing process which breaks up the fiber bundles.
What is the purpose of screening pulp?Screening is used to remove oversize fiber bundles and contaminants from the fiber suspension before it is used to make paper.
Below is a transcript of the video sample provided for this module:
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