design and production of paper for the new encasements
DESCRIPTION
Design and Production of Paper for the New Encasements. Timothy Barrett University of Iowa Center for the Book. Background. Rags. Fiber hemp, f and c. Cotton bump. Cotton hank. Floc cutter. Floc cut close. Beater. Deckle Box. Lower D Box. Add pulp. Shake . Shake close. - PowerPoint PPT PresentationTRANSCRIPT
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Design and Production of Paper for the New
EncasementsTimothy Barrett
University of Iowa Center for the Book
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Background
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Rags
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Fiber hemp, f and c
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Cotton bump
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Cotton hank
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Floc cutter
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Floc cut close
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Beater
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Deckle Box
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Lower D Box
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Add pulp
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Shake
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Shake close
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Deckle off
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Couch 1
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Couch 2
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Couch 3
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Press 1
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Press Inflated
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Drying
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Drying 2
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Paper AnalysesTEST 1950 NBS 2000 UICB alpha cellulose 92.0 98.9 beta cellulose 7.1 gamma cellulose 0.9 copper number 0.5 pH hot extract 9.0 6.85 cold extract 8.9 9.62 ash, oven dry basis
5.4%
alkaline reserve 1.3% kappa number 1.9* *This value determined by NARA was in line with the kappa numbers they have obtained for fully bleached wood pulp paper and board submitted to them as Ōlignin free.Õ N.B. The 2000 UICB paper also passed both the Oddy test, which looks at emissions that tarnish silver, lead or copper, and the photoactivity test, which checks the material in question against a colloidal silver detector (which may fade or get darker depending on the reaction) and a gelatin stain detector.
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Resolved
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Unseal Old
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Mill New
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Paper AnalysesTEST 1950 NBS 2000 UICB alpha cellulose 92.0 98.9 beta cellulose 7.1 gamma cellulose 0.9 copper number 0.5 pH hot extract 9.0 6.85 cold extract 8.9 9.62 ash, oven dry basis
5.4%
alkaline reserve 1.3% kappa number 1.9* *This value determined by NARA was in line with the kappa numbers they have obtained for fully bleached wood pulp paper and board submitted to them as Ōlignin free.Õ N.B. The 2000 UICB paper also passed both the Oddy test, which looks at emissions that tarnish silver, lead or copper, and the photoactivity test, which checks the material in question against a colloidal silver detector (which may fade or get darker depending on the reaction) and a gelatin stain detector.
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Baty Barrett
3
4
5
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0 2 4 6 8 10ml 0.01 M HCl Added
pH
Unsized Whatman Paper
Photobone-Sized Whatman Paper
'Assembled' Parchment-SizedWhatman Paper
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Tim and Lynn