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Lecturer(s)
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Veselý David, doc. Ing. Ph.D.
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Course content
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1st week Basic concepts of surface and colloidal chemistry (surface tension and energy, specific surface area and degree of dispersion, porous and dispersed systems, reticular and colloidal systems, 3D molecular and supramolecular networks - gels and fibrous networks of paper). 2nd week Basic concepts of surface and colloid chemistry, surface processes at two-phase interfaces. 3rd - 4th week Capillary phenomena (capillary elevation and depression, capillary phenomena in wetted and unwetted capillaries, Laplace's equation, vapor tension over liquids in a capillary, Kelvin's equation). 5th week Practical supramolecular-chemical processes (bonding, theory of adhesion, hygroscopicity of paper and other porous systems, transport processes in porous materials - penetration, diffusion, impregnation). 6th week Paper, cardboard, cardboard - characterization, classification and quality requirements. Paper fibers, breakdown and their influence on paper production technology. Options for processing waste paper. 7th week Paper preparation. Pulping. Characteristics of the grinding process and the effect of grinding on the resulting properties of the paper. 8th week Paper sorting - types of impurities in paper, principles and technology of their sorting, types of sorters, sorting lines. Removal of air from paper stock. 9th week Paper machine with longitudinal sieve (inlet boxes, sieve part, drainage elements). Other types of paper machines (slanted screen machines, double screen units, hybrid and cylindrical formers). 10th week Taking the paper from the sieve of the paper machine and transferring it to the press part. The press part of the paper machine. 11th week Drying part - structural solution of contact drying on rollers, other drying methods, humidity profile - control and management, drying curves. 12th week Winding the produced paper. Finishing operations - wetting, surface treatment by smoothing, calendering, rewinding, packaging. 13th week General summary of paper production technology, event excursion to the paper mill.
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Learning activities and teaching methods
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Monologic (reading, lecture, briefing)
- Contact teaching
- 65 hours per semester
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Learning outcomes
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The course brings information about basic papermaking principles and methods, with accent on machine equipments for processes at separate sections of paper machine. Student is able at the end of this course to orientate in some papermaking problems typically occur on paper and board machines. Students are informed about present-day technologies and methods in the whole world primarily in the Czech Republic used in papermaking process during treatment of raw materials to paper and used equipment (especially Fourdrinier machines).
After completing the course, the student is able to navigate the paper machine from the fabric preparation room to the finished product. He is competent to decide on the choice of possible technology and machinery for a given range of products. Completing the subject is a prerequisite for gaining an idea of the production of paper-based materials used in general consumption and in the packaging industry.
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Prerequisites
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The course is a follow-up to course - Pulp Production and Properties.
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Assessment methods and criteria
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Oral examination, Written examination
Student writes summary test at the end of semester which results in classified credit. After that student passes oral exam during which examiners evaluate degree of assumption of the papermaking technology methods and principles
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Recommended literature
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Blažej A., Krkoška P. Technológia výroby papiera. STU Bratislava, 2014.
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Hnětkovský V. Papírenská příručka, 1983, SNTL Praha.
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kolektiv autorů. How Paper is Made, výukový CD-ROM, TAPPI, 1997.
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Milichovský M. Papír: problémy s jeho výrobou a užitím. Pardubice: Univerzita Pardubice, 2019. ISBN 978-80-7560-277-0.
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Paulapuro H. Papermaking, Part 1- Stock Preparation and Wet End (8-díl z 19-ti svazkové edice: Papermaking Science and Technology), TAPPI and Finish Paper Engineer's Association, 2000. ISBN 952-5216-08-X.
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Skalický Č. Technologie výroby papíru I, 1981, skriptaVŠCHT Pardubice.
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Skalický Č. Technologie výroby papíru II, 1985, skriptaVŠCHT Pardubice.
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