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57-434: The Insinger Papyrus is a fragmented papyrus scroll with the beginning and end of the scroll missing, the size is about 612 × 27.5 cm (241 × 10,5 inches). The text is written on the rectoside . The text is an example of the ancient Egyptian literature genre wisdom teachings (Sebayt) and shows that Egyptian traditions persisted even under foreign rule and how they were adapted to the requirements of new times. The manuscript

114-505: A fine mesh leaving the fibre evenly distributed on the surface, it can be pressed and dried. The papermaking process developed in east Asia, probably China , at least as early as 105 CE , by the Han court eunuch Cai Lun , although the earliest archaeological fragments of paper derive from the 2nd century BCE in China. Although paper was originally made in single sheets by hand, today it

171-664: A number of industrial and construction processes. The oldest known archaeological fragments of the immediate precursor to modern paper date to the 2nd century BCE in China . The pulp papermaking process is ascribed to Cai Lun , a 2nd-century CE Han court eunuch . It has been said that knowledge of papermaking was passed to the Islamic world after the Battle of Talas in 751 CE when two Chinese papermakers were captured as prisoners and used to extract 'the secrets' of papermaking. Although

228-527: A rag paper. The aging behaviour of a paper is determined by its manufacture, not the original source of the fibres. Furthermore, tests sponsored by the Library of Congress prove that all paper is at risk of acid decay, because cellulose itself produces formic, acetic, lactic and oxalic acids. Mechanical pulping yields almost a tonne of pulp per tonne of dry wood used, which is why mechanical pulps are sometimes referred to as "high yield" pulps. With almost twice

285-399: A surface that was rolled and unrolled, so special inks were developed. Even so, ink would slowly flake off scrolls. Shorter pieces of parchment or paper are called rolls or rotuli , although usage of the term by modern historians varies with periods. Historians of the classical period tend to use roll instead of scroll . Rolls may still be many meters or feet long, and were used in

342-537: A transcript of an earlier manuscript. It is not known when the scroll was discovered. In 1895, the scroll was sold in Akhmim by French businessman Frenay to Dutch photographer and antique dealer Jan Herman Insinger . Insinger then lived in Luxor where he among other things worked with Gaston Maspero . The manuscript is the most comprehensive and significant of the preserved texts in the genre of wisdom teachings, one of

399-447: A variety of aluminium sulfate salt that is significantly acidic . Alum was added to paper to assist in sizing , making it somewhat water resistant so that inks did not "run" or spread uncontrollably. Early papermakers did not realize that the alum they added liberally to cure almost every problem encountered in making their product would be eventually detrimental. The cellulose fibres that make up paper are hydrolyzed by acid, and

456-462: A wide variety of properties, depending on its intended use. It is estimated that paper-based storage solutions captured 0.33% of the total in 1986 and only 0.007% in 2007, even though in absolute terms the world's capacity to store information on paper increased from 8.7 to 19.4 petabytes . It is estimated that in 1986 paper-based postal letters represented less than 0.05% of the world's telecommunication capacity, with sharply decreasing tendency after

513-443: Is uncoated . Coated paper has a thin layer of material such as calcium carbonate or china clay applied to one or both sides in order to create a surface more suitable for high-resolution halftone screens. (Uncoated papers are rarely suitable for screens above 150 lpi.) Coated or uncoated papers may have their surfaces polished by calendering . Coated papers are divided into matte, semi-matte or silk, and gloss. Gloss papers give

570-552: Is Latin for a "block of wood": the Latin liber , the root of "library", and the German Buch , the source of "book", both refer to wood. The codex was not only easier to handle than the scroll, but it also fit conveniently on library shelves. The spine generally held the book's title, facing out, affording easier organization of the collection. The surface on which the ink was applied was kept flat, not subjected to weakening by

627-503: Is a collection of writings and includes 25 surviving chapters. The scripture is broken down into different themes with numbered chapters and contains over 800 maxims . The maxims are written as one-liners similar to a proverb, examples are: The text is written in demotic and the manuscript is dated between year 0 and 100 AD around the Greek period and the Roman period . It is probably

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684-491: Is a lamination of natural plant fibre, while paper is manufactured from fibres whose properties have been changed by maceration. To make pulp from wood, a chemical pulping process separates lignin from cellulose fibre. A cooking liquor is used to dissolve the lignin , which is then washed from the cellulose ; this preserves the length of the cellulose fibres. Paper made from chemical pulps are also known as wood-free papers (not to be confused with tree-free paper ); this

741-455: Is a thick, paper-like material produced from the pith of the Cyperus papyrus plant, which was used in ancient Egypt and other Mediterranean cultures for writing before the introduction of paper. Although the word paper is etymologically derived from papyrus , the two are produced very differently and the development of the first is distinct from the development of the second. Papyrus

798-574: Is another specialty process used to pulp straws , bagasse and hardwoods with high silicate content. There are two major mechanical pulps: thermomechanical pulp (TMP) and groundwood pulp (GW). In the TMP process, wood is chipped and then fed into steam-heated refiners, where the chips are squeezed and converted to fibres between two steel discs. In the groundwood process, debarked logs are fed into grinders where they are pressed against rotating stones to be made into fibres. Mechanical pulping does not remove

855-451: Is because they do not contain lignin, which deteriorates over time. The pulp can also be bleached to produce white paper, but this consumes 5% of the fibres. Chemical pulping processes are not used to make paper made from cotton, which is already 90% cellulose. There are three main chemical pulping processes: the sulfite process dates back to the 1840s and was the dominant method before the second world war. The kraft process , invented in

912-475: Is considered card. The weight of a ream therefore depends on the dimensions of the paper and its thickness. Most commercial paper sold in North America is cut to standard paper sizes based on customary units and is defined by the length and width of a sheet of paper. The ISO 216 system used in most other countries is based on the surface area of a sheet of paper, not on a sheet's width and length. It

969-496: Is cut to width with holes punched at the edges, and folded into stacks. All paper produced by paper machines such as the Fourdrinier Machine are wove paper, i.e. the wire mesh that transports the web leaves a pattern that has the same density along the paper grain and across the grain. Textured finishes, watermarks and wire patterns imitating hand-made laid paper can be created by the use of appropriate rollers in

1026-417: Is formed as a paper web and the water is removed from it by pressing and drying. Pressing the sheet removes the water by force. Once the water is forced from the sheet, a special kind of felt, which is not to be confused with the traditional one, is used to collect the water. When making paper by hand, a blotter sheet is used instead. Drying involves using air or heat to remove water from the paper sheets. In

1083-443: Is mass-produced on large machines—some making reels 10 metres wide, running at 2,000 metres per minute and up to 600,000 tonnes a year. It is a versatile material with many uses, including printing , painting, graphics, signage, design, packaging, decorating, writing , and cleaning . It may also be used as filter paper, wallpaper, book endpaper, conservation paper, laminated worktops, toilet tissue, currency, and security paper, or in

1140-587: The Stockholm Convention on Persistent Organic Pollutants . Dioxins are highly toxic, and health effects on humans include reproductive, developmental, immune and hormonal problems. They are known to be carcinogenic. Over 90% of human exposure is through food, primarily meat, dairy, fish and shellfish, as dioxins accumulate in the food chain in the fatty tissue of animals. The paper pulp and print industries emitted together about 1% of world greenhouse-gas emissions in 2010 and about 0.9% in 2012. In

1197-491: The hydrogen bonds in the paper can be broken and fibres separated again. Most recycled paper contains a proportion of virgin fibre for the sake of quality; generally speaking, de-inked pulp is of the same quality or lower than the collected paper it was made from. There are three main classifications of recycled fibre: Recycled papers can be made from 100% recycled materials or blended with virgin pulp, although they are (generally) not as strong nor as bright as papers made from

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1254-479: The lignin , so the yield is very high, > 95%; however, lignin causes the paper thus produced to turn yellow and become brittle over time. Mechanical pulps have rather short fibres, thus producing weak paper. Although large amounts of electrical energy are required to produce mechanical pulp, it costs less than the chemical kind. Paper recycling processes can use either chemically or mechanically produced pulp; by mixing it with water and applying mechanical action

1311-791: The 13th to the 17th centuries for scroll, writing, or documents in list or schedule form. There existed an office of Clerk of the Scrow ( Rotulorum Clericus ) meaning the Clerk of the Rolls or Clerk of the Register. The codex form of the book—that is, folding a scroll into pages, which made reading and handling the document much easier—appears during the Roman period. Stemming from a passage in Suetonius' Divus Julius (56.6), legend has it that Julius Caesar

1368-448: The 1870s and first used in the 1890s, is now the most commonly practised strategy; one of its advantages is the chemical reaction with lignin produces heat, which can be used to run a generator. Most pulping operations using the kraft process are net contributors to the electricity grid or use the electricity to run an adjacent paper mill. Another advantage is that this process recovers and reuses all inorganic chemical reagents. Soda pulping

1425-681: The 2022−2024 edition of the annual "Pulp and paper capacites survey", the Food and Agriculture Organization of the United Nations (FAO) reports that Asia has superseded North America as the top pulp and paper producing continent. FAO figures for 2021 show the production of graphic papers continuing its decline from a mid-2000s peak to hover below 100 million tonnes a year. By contrast, the production of other papers and paperboard – which includes cardboard and sanitary products – has continued to soar, exceeding 320 million tonnes. FAO has documented

1482-695: The Czech František Lexa published a transcription with commentaries and interpretations in French in the book Papyrus Insinger . In the late 1970s, Karl-Theodor Zauzich (attendant for the University of Pennsylvania Museum of Archaeology and Anthropology – Penn Museum) discovered three additional fragments in the Museum's collections belonging to the Insinger Papyrus. These were bought for

1539-678: The Middle Ages. From the fourth century on, the codex became the standard format for books, and scrolls were no longer generally used. After the contents of a parchment scroll were copied in codex format, the scroll was seldom preserved. The majority that did survive were found by archaeologists in burial pits and in the buried trash of forgotten communities. Modern technology may be able to assist in reading ancient scrolls. In January 2015, computer software may be making progress in reading 2,000-year-old Herculaneum scrolls, computer scientists report. After working for more than 10 years on unlocking

1596-557: The United States alone. The average office worker in the US prints 31 pages every day. Americans also use in the order of 16 billion paper cups per year. Conventional bleaching of wood pulp using elemental chlorine produces and releases into the environment large amounts of chlorinated organic compounds , including chlorinated dioxins . Dioxins are recognized as a persistent environmental pollutant, regulated internationally by

1653-550: The United States and in micrometres (μm) in the rest of the world. Paper may be between 0.07 and 0.18 millimetres (0.0028 and 0.0071 in) thick. Paper is often characterized by weight. In the United States, the weight is the weight of a ream (bundle of 500 sheets) of varying "basic sizes" before the paper is cut into the size it is sold to end customers. For example, a ream of 20 lb, 8.5 in × 11 in (216 mm × 279 mm) paper weighs 5 pounds because it has been cut from larger sheets into four pieces. In

1710-502: The United States, printing paper is generally 20 lb, 24 lb, 28 lb, or 32 lb at most. Cover stock is generally 68 lb, and 110 lb or more is considered card stock . In Europe and other regions using the ISO 216 paper-sizing system, the weight is expressed in grams per square metre (g/m or usually gsm) of the paper. Printing paper is generally between 60 gsm and 120 gsm. Anything heavier than 160 gsm

1767-397: The change. Scrolls were awkward to read if a reader wished to consult material at opposite ends of the document. Further, scrolls were written only on one side, while both sides of the codex page were used. Eventually, the folds were cut into sheets, or "leaves", and bound together along one edge. The bound pages were protected by stiff covers, usually of wood enclosed with leather. Codex

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1824-404: The contents of damaged Herculaneum scrolls , researchers may be able to progress towards reading the scrolls, which cannot be physically opened. Paper Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood , rags , grasses , herbivore dung , or other vegetable sources in water . Once the water is drained through

1881-542: The cost of manufacturing paper. In 1844, the Canadian inventor Charles Fenerty and the German inventor Friedrich Gottlob Keller independently developed processes for pulping wood fibres. Before the industrialisation of paper production the most common fibre source was recycled fibres from used textiles, called rags. The rags were from hemp , linen and cotton . A process for removing printing inks from recycled paper

1938-560: The earliest days of papermaking, this was done by hanging the sheets like laundry; in more modern times, various forms of heated drying mechanisms are used. On the paper machine, the most common is the steam-heated can dryer. These can reach temperatures above 93 °C (200 °F) and are used in long sequences of more than forty cans where the heat produced by these can easily dry the paper to less than six percent moisture. The paper may then undergo sizing to alter its physical properties for use in various applications. Paper at this point

1995-477: The edges. Scrolls may be marked divisions of a continuous roll of writing material . The scroll is usually unrolled so that one page is exposed at a time, for writing or reading, with the remaining pages rolled and stowed to the left and right of the visible page. Text is written in lines from the top to the bottom of the page. Depending on the language, the letters may be written left to right, right to left, or alternating in direction ( boustrophedon ). Scrolls were

2052-563: The evidence of surviving early codices does make clear is that Christians were among the earliest to make widespread use of the codex. Several Christian papyrus codices known to us date from the second century, including at least one generally accepted as being no later than A.D. 150. "All in all, it is impossible to believe that the Christian adoption of the codex can have taken place any later than circa A.D. 100 (it may, of course, have been earlier)". There were certainly practical reasons for

2109-444: The expanding production of cardboard in paper and paperboard, which has been increasing in response to the spread of e-commerce since the 2010s. Data from FAO suggest that it has been even further boosted by COVID-19-related lockdowns. Some manufacturers have started using a new, significantly more environmentally friendly alternative to expanded plastic packaging. Made out of paper, and known commercially as PaperFoam,

2166-619: The first form of editable record keeping texts, used in Eastern Mediterranean ancient Egyptian civilizations . Parchment scrolls were used by the Israelites among others before the codex or bound book with parchment pages was invented by the Romans, which became popular around the 1st century AD. Scrolls were more highly regarded than codices until well into Roman times. The ink used in writing scrolls had to adhere to

2223-417: The highest optical density in the printed image. The paper is then fed onto reels if it is to be used on web printing presses, or cut into sheets for other printing processes or other purposes. The fibres in the paper basically run in the machine direction. Sheets are usually cut "long-grain", i.e. with the grain parallel to the longer dimension of the sheet. Continuous form paper (or continuous stationery)

2280-414: The later stages of the machine. Wove paper does not exhibit "laidlines", which are small regular lines left behind on paper when it was handmade in a mould made from rows of metal wires or bamboo. Laidlines are very close together. They run perpendicular to the "chainlines", which are further apart. Handmade paper similarly exhibits "deckle edges", or rough and feathery borders. Paper can be produced with

2337-424: The latter. Besides the fibres, pulps may contain fillers such as chalk or china clay , which improve its characteristics for printing or writing. Additives for sizing purposes may be mixed with it or applied to the paper web later in the manufacturing process; the purpose of such sizing is to establish the correct level of surface absorbency to suit ink or paint. The pulp is fed to a paper machine, where it

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2394-401: The length, divided into page-like sections. Rolls may be wider than most scrolls, up to perhaps 60 cm or two feet wide. Rolls were often stored together in a special cupboard on shelves. A special Chinese form of short book, called the "whirlwind book", consists of several pieces of paper bound at the top with bamboo and then rolled up. In Scotland , the term scrow was used from about

2451-424: The massive introduction of digital technologies. Paper has a major role in the visual arts. It is used by itself to form two- and three-dimensional shapes and collages . It has also evolved to being a structural material used in furniture design. Watercolor paper has a long history of production and use. The thickness of paper is often measured by caliper, which is typically given in thousandths of an inch in

2508-453: The medieval and Early Modern period in Europe and various West Asian cultures for manuscript administrative documents intended for various uses, including accounting, rent-rolls, legal agreements, and inventories. A distinction that sometimes applies is that the lines of writing in rotuli run across the width of the roll (that is to say, are parallel with any unrolled portion) rather than along

2565-612: The museum in Egypt in 1910. The archive number of the papyrus at Rijksmuseum van Oudheden is F 95 / 5.1 and E 16333 A-C at the Penn Museum. Scroll A scroll (from the Old French escroe or escroue ), also known as a roll , is a roll of papyrus , parchment , or paper containing writing. A scroll is usually partitioned into pages, which are sometimes separate sheets of papyrus or parchment glued together at

2622-519: The new packaging has mechanical properties very similar to those of some expanded plastic packaging, but is biodegradable and can also be recycled with ordinary paper. With increasing environmental concerns about synthetic coatings (such as PFOA ) and the higher prices of hydrocarbon based petrochemicals, there is a focus on zein (corn protein) as a coating for paper in high grease applications such as popcorn bags. Also, synthetics such as Tyvek and Teslin have been introduced as printing media as

2679-468: The office and the home are A4 and A3 (A3 is the size of two A4 sheets). The density of paper ranges from 250 kg/m (16 lb/cu ft) for tissue paper to 1 500  kg/m (94 lb/cu ft) for some specialty paper. Printing paper is about 800 kg/m (50 lb/cu ft). Paper may be classified into seven categories: Some paper types include: Much of the early paper made from wood pulp contained significant amounts of alum ,

2736-613: The oldest genres in ancient Egyptian literature . In contrast to other extant wisdom teachings emphasizing proper social behavior, the Insinger Papyrus puts the emphasis on ethically correct behavior. In 1922, the Dutchman Pieter Adriaan Aart Boeser published the first transcription and translation in the article "Transkription und Übersetzung des Papyrus Insinger" in Internationales Archiv für Ethnographie (OMRO, vol 26). In 1926,

2793-461: The past 40 years leading to increase in deforestation , with 35% of harvested trees being used for paper manufacture. Most paper companies also plant trees to help regrow forests. Logging of old growth forests accounts for less than 10% of wood pulp, but is one of the most controversial issues. Paper waste accounts for up to 40% of total waste produced in the United States each year, which adds up to 71.6 million tons of paper waste per year in

2850-428: The presence of alum eventually degrades the fibres until the acidic paper disintegrates in a process known as " slow fire ". Documents written on rag paper are significantly more stable. The use of non-acidic additives to make paper is becoming more prevalent, and the stability of these papers is less of an issue. Paper made from mechanical pulp contains significant amounts of lignin , a major component in wood. In

2907-428: The presence of light and oxygen, lignin reacts to give yellow materials, which is why newsprint and other mechanical paper yellows with age. Paper made from bleached kraft or sulfite pulps does not contain significant amounts of lignin and is therefore better suited for books, documents and other applications where whiteness of the paper is essential. Paper made from wood pulp is not necessarily less durable than

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2964-416: The repeated bending and unbending that scrolls undergo as they are alternately rolled up for storage and unrolled for reading, which creates physical stresses in both the papyrus and the ink of scrolls. The term codex technically refers only to manuscript books — those that, at one time, were handwritten. More specifically, a codex is the term used primarily for a bound manuscript from Roman times up through

3021-583: The veracity of this story is uncertain, paper started to be made in Samarkand soon after. In the 13th century, the knowledge and uses of paper spread from the Middle East to medieval Europe , where the first water-powered paper mills were built. Because paper was introduced to the West through the city of Baghdad , it was first called bagdatikos . In the 19th century, industrialization greatly reduced

3078-410: The yield as chemical pulping, mechanical pulps is often cheaper. Mass-market paperback books and newspapers tend to use mechanical papers. Book publishers tend to use acid-free paper , made from fully bleached chemical pulps for hardback and trade paperback books. The production and use of paper has a number of adverse effects on the environment. Worldwide consumption of paper has risen by 400% in

3135-477: Was first adopted in Germany in 1922 and generally spread as nations adopted the metric system. The largest standard size paper is A0 (A zero), measuring one square metre (approx. 1189 × 841 mm). A1 is half the size of a sheet of A0 (i.e., 594 mm × 841 mm), such that two sheets of A1 placed side by side are equal to one sheet of A0. A2 is half the size of a sheet of A1, and so forth. Common sizes used in

3192-423: Was invented by German jurist Justus Claproth in 1774. Today this method is called deinking . It was not until the introduction of wood pulp in 1843 that paper production was not dependent on recycled materials from ragpickers . The word paper is etymologically derived from Latin papyrus , which comes from the Greek πᾰ́πῡρος ( pápūros ), the word for the Cyperus papyrus plant. Papyrus

3249-489: Was the first to fold scrolls, concertina-fashion, for dispatches to his forces campaigning in Gaul. But the precise meaning of the passage is by no means clear. As C. H. Roberts and T. C. Skeat point out, the idea that " Julius Caesar may have been the inventor of the codex... is indeed a fascinating proposition; but in view of the uncertainties surrounding the passage, it is doubtful whether any such conclusion can be drawn". What

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