2 edition of role of web properties in water removal by wet pressing found in the catalog.
role of web properties in water removal by wet pressing
Daniel F. Caulfield
by Forest Products Laboratory, Forest Service, U.S. Dept. of Agriculture in Madison, Wis
Written in English
|Statement||D.F. Caulfield, T.L. Young, and T.H. Wegner.|
|Contributions||Young, T. L., Wegner, T. H., Forest Products Laboratory (U.S.)|
|The Physical Object|
|Pagination||p. 65-69 :|
|Number of Pages||69|
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Get this from a library. The role of web properties in water removal by wet pressing: characterization of dewatering time constant. [Daniel F Caulfield; T L Young; T H. entering of wet web through the nip of two rolls running under pressure. Under the effect of pressure between the two rolls further water removal of paper is obtained and its compactness and strength is increased.
The pressing operation is important for the capacity and economy of a paper machine and has great influence on paper Size: KB. remaining water is evaporated and inter-fibre binding developed as the paper contacts a series of steam heated cylinder in the dryer se ction.
Water removal from the wet web to the final moisture level between 6% and 7% is a critical step of papermaking. Majority of the functional properties File Size: KB.
The press section mechanically squeezes water from the wet web, increasing the solids content of the sheet of paper. It also reduces the bulk or thickness of the paper. This compaction assists in subsequent bonding of fibres.
The Dryer. Paper leaves the press section and enters the dryer at File Size: KB. Specific heat capacity and heat of vaporization of water. Evaporative cooling. Why ice floats. suspended in solution; 4) forming a web of fibers on a thin screen; 5) pressing the web to increase the density of the material; 6) drying to remove the remaining moisture; and 7) finishing, to provide a suitable surface for the intended end use.
Pulp and paper are made from cellulosic fibers (i.e., fibers from trees) and other plant materials. Wet soil: plastic – when wet, readily deformed by moderate pressure but can be pressed into a lump; will form a “wire” when rolled between thumb and forefinger; sticky – when wet, adheres to other material and tends to stretch somewhat and pull apart rather than.
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