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Paper
Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, rags, grasses or other vegetable sources in water, draining the water through fine mesh leaving the fibre evenly distributed on the surface, followed by pressing and drying. Although paper was originally made in single sheets by hand, almost all is now made on large machines—some making reels 10 metres wide, running at 2,000 metres per minute and up to 600,000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, or currency and security paper, or in a number of industrial and construction processes. 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 e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carton
A carton is a box or container usually made of liquid packaging board, paperboard and sometimes of corrugated fiberboard. Many types of cartons are used in packaging. Sometimes a carton is also called a box. Types of cartons Folding cartons A carton is a type of packaging typically made from paperboard that is suitable for food, pharmaceuticals, hardware, and many other types of products. Folding cartons are usually combined into a tube at the manufacturer and shipped flat (knocked down) to the packager. Tray styles have a solid bottom and are often shipped as flat blanks and assembled by the packager. Some also are self-erecting. High-speed equipment is available to set up, load, and close the cartons. Egg carton Egg cartons or trays are designed to protect whole eggs while in transit. Traditionally, these have been made of molded pulp. This uses recycled newsprint which is molded into a shape which protects the eggs. More recently, egg cartons have also been made fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grammage
Grammage and basis weight, in the pulp and paper industry, are the area density of a paper product, that is, its mass per unit of area. Two ways of expressing grammage are commonly used: * Expressed in grams (g) per square meter (g/m2), regardless of its thickness (caliper).International Standard ISO 536: Paper and board – Determination of grammage. International Organization for Standardization, Geneva. This is the measure used in most parts of the world. It is often notated as gsm on paper product labels and spec sheets. * Expressed in terms of the mass per number of sheets of a specific paper size, known as ''basis weight''. The convention used in the United States and a few other countries using US-standard paper sizes is pounds (lb) per a ream of 500 (or in some cases 1000) sheets of a given (raw, still uncut) basis size. Japanese paper is expressed as the weight in kilograms (kg) per 1,000 sheets. Grammage In the metric system, the mass per unit area of all types of pap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Book
A book is a medium for recording information in the form of writing or images, typically composed of many pages (made of papyrus, parchment, vellum, or paper) bound together and protected by a cover. The technical term for this physical arrangement is '' codex'' (plural, ''codices''). In the history of hand-held physical supports for extended written compositions or records, the codex replaces its predecessor, the scroll. A single sheet in a codex is a leaf and each side of a leaf is a page. As an intellectual object, a book is prototypically a composition of such great length that it takes a considerable investment of time to compose and still considered as an investment of time to read. In a restricted sense, a book is a self-sufficient section or part of a longer composition, a usage reflecting that, in antiquity, long works had to be written on several scrolls and each scroll had to be identified by the book it contained. Each part of Aristotle's ''Physics'' is called a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Han Dynasty
The Han dynasty (, ; ) was an imperial dynasty of China (202 BC – 9 AD, 25–220 AD), established by Liu Bang (Emperor Gao) and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–207 BC) and a warring interregnum known as the ChuHan contention (206–202 BC), and it was succeeded by the Three Kingdoms period (220–280 AD). The dynasty was briefly interrupted by the Xin dynasty (9–23 AD) established by usurping regent Wang Mang, and is thus separated into two periods—the Western Han (202 BC – 9 AD) and the Eastern Han (25–220 AD). Spanning over four centuries, the Han dynasty is considered a golden age in Chinese history, and it has influenced the identity of the Chinese civilization ever since. Modern China's majority ethnic group refers to themselves as the "Han people", the Sinitic language is known as "Han language", and the written Chinese is referred to as "Han characters". The emperor was at the pinnacle of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemp
Hemp, or industrial hemp, is a botanical class of ''Cannabis sativa'' cultivars grown specifically for industrial or medicinal use. It can be used to make a wide range of products. Along with bamboo, hemp is among the fastest growing plants on Earth. It was also one of the first plants to be spun into usable fiber 50,000 years ago. It can be refined into a variety of commercial items, including paper, rope, textiles, clothing, biodegradable plastics, paint, insulation, biofuel, food, and animal feed. Although chemotype I cannabis and hemp (types II, III, IV, V) are both ''Cannabis sativa'' and contain the psychoactive component tetrahydrocannabinol (THC), they represent distinct cultivar groups, typically with unique phytochemical compositions and uses. Hemp typically has lower concentrations of total THC and may have higher concentrations of cannabidiol (CBD), which potentially mitigates the psychoactive effects of THC. The legality of hemp varies widely among countrie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Gottlob Keller
Friedrich Gottlob Keller (born 27 June 1816 in Hainichen, Saxony; died 8 September 1895 in Krippen, Saxony) was a German machinist and invention, inventor, who (at the same time as Charles Fenerty) invented the pulp (paper), wood pulp process for use in papermaking. He is widely known for his wood-cut machine (used for extracting the fibres needed for pulping wood). Unlike Charles Fenerty, F.G. Keller took out a patent for his wood-cut invention. Early life Keller spent his childhood and youth working for his father as a weaver (occupation), weaver and heddle-maker in Hainichen, Saxony (north-eastern Germany). But he was unhappy in this occupation since his interest was in machines. Keller carried with him an "idea-book", where he jotted down different kinds of machines. He had subscriptions to many of the leading publications on machines, and was well read in the sciences of mechanics. In his late years he recalled an article he read in his youth about the work of the French mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Fenerty
Charles Fenerty (January 1821 – 10 June 1892), was a Canadian inventor who invented the wood pulp process for papermaking, which was first adapted into the production of newsprint. Fenerty was also a poet (writing over 32 known poems). Early life Fenerty was born in Upper Falmouth, Nova Scotia. He was the youngest of three boys, all of whom worked for their father, a lumberman and farmer. During the winter months, the Fenertys would clear-cut the local forests for lumber, which they then transported to the family's lumber mill at Springfield Lake. The Fenertys shipped their lumber to the Halifax dockyards, where it was exported or used locally. The Fenertys had around of farmland; they shipped most of their produce to the markets in Halifax. As a young man, Fenerty began writing poetry; his first (known) poem, written when he was 17 years old, was titled "The Prince's Lodge" (later retitled as "Passing Away" and published in 1888). It described an abandoned, decaying home ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paper Mill
A paper mill is a factory devoted to making paper from vegetable fibres such as wood pulp, old rags, and other ingredients. Prior to the invention and adoption of the Fourdrinier machine and other types of paper machine that use an endless belt, all paper in a paper mill was made by hand, one sheet at a time, by specialized laborers. History Historical investigations into the origin of the paper mill are complicated by differing definitions and loose terminology from modern authors: Many modern scholars use the term to refer indiscriminately to all kinds of mills, whether powered by humans, by animals or by water. Their propensity to refer to any ancient paper manufacturing center as a "mill", without further specifying its exact power source, has increased the difficulty of identifying the particularly efficient and historically important water-powered type. Human and animal-powered mills The use of human and animal powered mills was known to Muslim and Chinese paperma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medieval Europe
In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages. Population decline, counterurbanisation, the collapse of centralized authority, invasions, and mass migrations of tribes, which had begun in late antiquity, continued into the Early Middle Ages. The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—most recently part of the Eastern Rom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle East
The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabian Peninsula, Arabia (including the Arabian Peninsula and Bahrain), Anatolia, Asia Minor (Asian part of Turkey except Hatay Province), East Thrace (European part of Turkey), Egypt, Iran, the Levant (including Syria (region), Ash-Shām and Cyprus), Mesopotamia (modern-day Iraq), and the Socotra Governorate, Socotra Archipelago (a part of Yemen). The term came into widespread usage as a replacement of the term Near East (as opposed to the Far East) beginning in the early 20th century. The term "Middle East" has led to some confusion over its changing definitions, and has been viewed by some to be discriminatory or too Eurocentrism, Eurocentric. The region includes the vast majority of the territories included in the closely associated definition of Western Asia (including Iran), but without the South Caucasus, and additionally includes all of Egypt (not just the Sina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samarkand
fa, سمرقند , native_name_lang = , settlement_type = City , image_skyline = , image_caption = Clockwise from the top:Registan square, Shah-i-Zinda necropolis, Bibi-Khanym Mosque, view inside Shah-i-Zinda, Sher-Dor Madrasah in Registan, Timur's Mausoleum Gur-e-Amir. , image_alt = , image_flag = , flag_alt = , image_seal = Emblem of Samarkand.svg , seal_alt = , image_shield = , shield_alt = , etymology = , nickname = , motto = , image_map = , map_alt = , map_caption = , pushpin_map = Uzbekistan#West Asia#Asia , pushpin_map_alt = , pushpin_mapsize = 300 , pushpin_map_caption = Location in Uzbekistan , pushpin_label_position = , pushpin_relief = 1 , coordinates = , coor_pinpoint = , co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Talas
The Battle of Talas or Battle of Artlakh (; ar, معركة نهر طلاس, translit=Maʿrakat nahr Ṭalās, Persian: Nabard-i Tarāz) was a military encounter and engagement between the Abbasid Caliphate along with its ally, the Tibetan Empire, against the Chinese Tang dynasty. In July 751 AD, Tang and Abbasid forces met in the valley of the Talas River to vie for control over the Syr Darya region of central Asia. According to Chinese sources, after several days of stalemate, the Karluk Turks, originally allied to the Tang Dynasty, defected to the Abbasid Army and tipped the balance of power, resulting in a Tang rout. The defeat marked the end of the Tang westward expansion and resulted in Islamic control of Transoxiana for the next 400 years. However, direct Muslim Arab control ended in 821 when power shifted to the Tahirid dynasty, a culturally Arabized Sunni Muslim dynasty of Persian Dehqan origin. Then the Turkic Ghaznavids took power in 977. Islamic control ended in 1124 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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