Paper Board

The fifth and final chapter, on Parallel Force Field Evaluation, takes account of the fact that the bulk of CPU time spent in MD simulations is required for evaluation of the force field. In the first paper, BOARD and his coworkers present a comparison of the performance of various parallel implementations of Ewald and multipole summations together with recommendations for their application. The second paper, by Phillips et AL., addresses the special problems associated with the design of parallel MD programs. Conflicting issues that shape the design of such codes are identified and the use of features such as multiple threads and message-driven execution is described. The final paper, by Okunbor Murty, compares three force decomposition techniques (the checkerboard partitioning method. 

Cheese products generally must be maintained under refrigeration using closed flexible plastic, or plastic cups or tubs for packaging. Ice cream packaging is generally minimal, ie, lacquered or polyethylene extmsion-coated paper-board cartons, molded plastic tubs, or spinal wound composite paperboard tubs or cartons. 

Paperchem Institute of Paper Science and Technology Dialog pulp, paper, board... 

J. P. Weidner, ed.. Wet Strength in Paper and Paper Board, Monograph Series, No. 29, Technical Association of Pulp and Paper Industry, New York,... 

The outer packaging must protect the tea from light and moisture absorption. Polypropylene or coated ceUophane outer wraps for paper board tea packages provide a barrier to loss of tea aroma and retard permeation of oxygen and foreign flavors. Low temperature improves storage stabiHty. Properly packaged and stored teas retain acceptable flavor for about a year. 

Recirculation. In the paper board industry, white water from a paper machine can be put through a saveaH to remove the pulp and fiber and then be recycled to various points in the paper-making process. 

Bau-pappe,/. building (paper) board, -riss, m. bmlding plan, -sand, m. building sand, mortar sand. 

Kartonnage, /. paper board, pasteboard, cardboard paper-board box, carton. Kartonnagen-fabrikation, /. petper-board making carton making, -leim, m. boxmakers glue. 

Natur-harte, /, natural hardness Metal.) natural temper, -barz, n, natural resin, -heilung, /, spontaneous cure, -holz, n. natural wood, -karton, m, unbleached (paper)board, -kautsebnk, m. n. natural rubber (esp., improcessed), -kdrper, m. natural substance, natural body, -kraft, /. natural force or power, -lehre, /, natural science, natural philosophy, naturbeb, a. natural native actual,full (size). 

Papp-. paperboard, pasteboard, cardboard, -band, m. board binding volume bound in boards, -bogen, m. sheet of pasteboard (or cardboard), -deckel, m. pasteboard, paper-board. -druck, m. paste resist printing, -diite, /. heavy-paper bag. 

Pappel,/. poplar mallow, -art, /. (variety of) poplar (variety of) mallow, -holz, n. poplar (wood), -kraut, n. mallow, pappen, v.t. i. paste work in paperboard. Pappen-art, /. (paper)board. -deckel, m. = Pappdeckel. -fabrik, /. (paper) board mill, -guss, m. cast paperboard, pressboard, mill-board. -leim, m. pasteboard glue, -stiel, m. trifle. 

Well-packpapier, -papier, n. corrugated paper, -pappe, /. corrugated (paper)board. -rad, n. wheel and axle arbor wheel, -rohr, n. corrugated tube or pipe. 

C. Conversion Processes for Paper/Board-Based Materials... 

The paper or paperboard manufacturing process is similar for all types of pulp. Pulp is spread out as extremely dilute slurry on a moving endless belt of filtering fabric. Water is removed by gravity and vacuum, and the resulting web of fibers is passed through presses to remove more water and consolidate the web. Paper and paperboard manufacturers use nearly identical processes, but paper-board is thicker (more than 0.3 mm). 

Contaminant removal processes depend on the type and source of secondary fiber to be pulped. Mill paper waste can be easily repulped with minimal contaminant removal. Recycled postconsumer newspaper, on the other hand, may require extensive contaminant removal, including deinking, prior to reuse. Secondary fiber is typically used in lower-quality applications such as multiply paper-board or corrugating paper. 

U.S. EPA, Proposed Technical Development Document for the Pulp, Paper and Paper board Category and Effluent Limitations Guidelines, Pretreatment Standards, and New Source Performance Standard, U.S. EPA, Washington, October 1993. 

Industrial fibers paper board, composites, textile fibers and bulk fibers. 

Extrusion coating has been developed to form thin polymer layers on flexible substrates like paper, paper board and metal foils in a high speed process (see Fig. 10) [27, 33, 34]. In combination with paper and paper board, the polymer protects the substrate from moisture, oil and fat. The polymer provides the welding properties to transform, e.g., the paper board/PE substrate into a paper cup, a liquid packaging board or a box for frozen food. 

Instead of the simultaneously extmded polymer film, a pre-extmded or laminated film can be laminated on the substrate (e.g., paper or paper board). In this case, the extruder can be used to extrude the polymer providing adhesion (e.g., Ecoflex ) in a thin layer between the polymer coating film or laminate and the substrate. Another option is to apply a dispersion or heat in the laminator (Fig. 10, 4) to obtain adhesion. After thickness measurement and second subsequent corona treatment, substrate and polymer coating are wound on a winder (Fig. 10, 6) in order to obtain rolls for transport to subsequent processes (e.g., printing, cutting, cup forming, box making). 

In the United States, the Food and Drug Administration (1999) permits the use of di(2-ethylhexyl) adipate as a component of adhesives used in food packaging, as a component of cellophane, as a plasticizer in polymeric substances used in the manufacture of articles for the food industry, as a component of paper and paper-board in contact with aqueous and fatty foods, and as a component of closirres with sealing gaskets for food containers. 

The Food and Drug Administration (1999) permits the use of triethanolamine as a component of adhesives in food packaging as an indirect food additive, as a component of the uncoated or coated food contact surface of paper and paper board for use with dry solid foods with no free fat or oil on the surface, and to adjust pH during the manufacture of amino resins permitted for use as components of paper and paper board in the United States. 

Ind 1949,555-6(Bagasse as a raw material for chemical industry) 6)C.J.West, The Utilization of Sugar Cane Bagasse for Paper,Board,Plas-... 

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