Papr2 - 1 Pulp and Paper Industry Overview Lecture 2 PAPR 1000 Introduction to Pulp and Paper Manufacture 2 Introduction Though we may take it

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Unformatted text preview: 1 Pulp and Paper Industry Overview Lecture 2 PAPR 1000 Introduction to Pulp and Paper Manufacture 2 Introduction ¡ Though we may take it for granted, paper is always with us, documenting our world and reminding us of the limitless possibilities of life. ¡ Invented by the Chinese 2000 years ago, paper has been used ever since as a communication medium. ¡ Initially, paper was made out of fibers from mulberry bark, papyrus, straw or cotton. ¡ Wood only emerged as the chief raw material for paper mass production as recently as the mid 19th century. 3 What is Paper ? ¡ Paper is described as a homogeneous sheet of uniform thickness and surface smoothness from a suspension of cellulose fibers in water, by drainage, pressing and drying” ¡ Paper is commonly grouped into the following five main grades as presented below: • Newsprint • Printing & Writing Papers • Sanitary and Household Papers • Paper-based Packaging Materials • Specialty Papers 4 Paper Consumption Paper Consumption (Fig 1.3) (Fig 1.3) Per capita consumption of paper is a widely used barometer of economic advancement. As a country’s gross domestic product grows, so does its demand for paper. Growth patterns in paper products such as newsprint & office & computer papers are closely related to industrial activity, while other products (e.g., disposable diapers) are directly affected by changes in real personal income or demographic factors. The United States is the world’s leading economy and the world’s largest consumer of paper and paperboard products-our per capita consumption is roughly 700 pounds annually. 5 Capital Investment Capital Investment ¡ Capital investment in the pulp and paper industry currently ranges from $500,000 to $1 million per installed ton of daily capacity . ¡ The scale of equipment, the complexity of operations, and the high cost of downtime requires that pulp and paper mills run around the clock, 365 days a year to operate profitably. 6 History of Papermaking tone Ages Earliest media for writing was stone tablets 000 BC Egyptians invented Papyrus Papyrus was a reed found in Nile River...
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This note was uploaded on 04/02/2008 for the course PAPR 1000 taught by Professor Joyce during the Fall '08 term at Western Michigan.

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Papr2 - 1 Pulp and Paper Industry Overview Lecture 2 PAPR 1000 Introduction to Pulp and Paper Manufacture 2 Introduction Though we may take it

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