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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: 20 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 recycled fiber sources and the processes that are used to turn that fiber into clean papermaking stock
Supplemental and Recycled Fiber - Bale Handling
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Supplemental and Recycled Fiber - Fiber Deinking
Supplemental and Recycled Fiber - Fiber Fundamentals
Supplemental and Recycled Fiber - Fiber Prep and Screening
Supplemental and Recycled Fiber - Rejects Handling
The following key questions are answered in this module:
What is the primary goal when fiber is recycled?The primary goal in recycling fiber is to remove contaminants from good papermaking fiber.
How do high density cleaners clean incoming pulp?High density cleaners separate particles which have a higher density than the fibers by subjecting the pulp mixture to large centrifugal forces.
Why are multiple stages of screens used?Rescreening the rejects from a screen recovers some of the good fiber which inevitably mixes with the contaminants in the reject stream.
What type of screen is best suited for use as a coarse screen if the pulp has high levels of contaminants?Disk screens are better coarse screens for pulps with high levels of contamination.
How are ink particles separated from fibers in a flotation deinking cell?Ink particles attach themselves to the small air bubbles which are introduced into the flotation cell. The bubbles and particles float to the top of the cell where they are removed.
Below is a transcript of the video sample provided for this module:
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