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Cuprammonium Rayon
Cuprammonium rayon is a rayon fiber made from cellulose dissolved in a cuprammonium solution, Schweizer's reagent. It is produced by making cellulose a soluble compound by combining it with copper and ammonia with caustic soda. The solution is passed through a spinneret and the cellulose is regenerated in hardening baths that remove the copper and ammonia and neutralize the caustic soda. Cuprammonium rayon is usually made in fine filaments that are used in suit jacket linings as well as lightweight summer dresses and blouses, sometimes in combination with cotton to make textured fabrics with slubbed, uneven surfaces. The fabric is commonly known by the trade name "Bemberg", owned by the J.P. Bemberg company. The fabric may also be known as "cupro" or "cupra". It is also known as "ammonia silk" on Chinese fashion retail websites. History Cuprammonium rayon was invented in 1890. Swiss chemist Matthias Eduard Schweizer (1818–1860) discovered that cellulose dissolves i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Cupra Lining Fabric
Brown is a color. It can be considered a composite color, but it is mainly a darker shade of orange. In the CMYK color model used in printing and painting, brown is usually made by combining the colors orange and black. In the RGB color model used to project colors onto television screens and computer monitors, brown combines red and green. The color brown is seen widely in nature, wood, soil, human hair color, eye color and skin pigmentation. Brown is the color of dark wood or rich soil. In the RYB color model, brown is made by mixing the three primary colors, red, yellow, and blue. According to public opinion surveys in Europe and the United States, brown is the least favorite color of the public; it is often associated with fecal matter, plainness, the rustic, although it does also have positive associations, including baking, warmth, wildlife, the autumn and music. Etymology The term is from Old English , in origin for any dusky or dark shade of color. The first re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Bulb
Electric light is an artificial light source powered by electricity. Electric Light may also refer to: * Light fixture, a decorative enclosure for an electric light source * ''Electric Light'' (album), a 2018 album by James Bay * Electric Light (poetry) ''Electric Light'' (Faber and Faber, 2001, ) is a poetry collection by Seamus Heaney, who received the 1995 Nobel Prize in Literature. The collection explores childhood, nature, and poetry itself. Part one presents translations and adaptations, o ..., a poetry collection by Irish poet Seamus Heaney, 2001 * "Electric Light" (song), a 2008 song by Infernal {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synthetic Fibers
Synthetic fibers or synthetic fibres (in British English; see spelling differences) are fibers made by humans through chemical synthesis, as opposed to natural fibers that are directly derived from living organisms, such as plants like cotton or fur from animals. They are the result of extensive research by scientists to replicate naturally occurring animal and plant fibers. In general, synthetic fibers are created by extruding fiber-forming materials through spinnerets, forming a fiber. These are called synthetic or artificial fibers. The word polymer comes from a Greek prefix "poly" which means "many" and suffix "mer" which means "single units". (Note: each single unit of a polymer is called a monomer). The first synthetic fibres Nylon was the first commercially successful synthetic thermoplastic polymer. DuPont began its research project in 1927. The first nylon, nylon 66, was synthesized on February 28, 1935, by Wallace Hume Carothers at DuPont's research facility a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupro
Cuprammonium rayon is a rayon fiber made from cellulose dissolved in a cuprammonium solution, Schweizer's reagent. It is produced by making cellulose a soluble compound by combining it with copper and ammonia with caustic soda. The solution is passed through a spinneret and the cellulose is regenerated in hardening baths that remove the copper and ammonia and neutralize the caustic soda. Cuprammonium rayon is usually made in fine filaments that are used in suit jacket linings as well as lightweight summer dresses and blouses, sometimes in combination with cotton to make textured fabrics with slubbed, uneven surfaces. The fabric is commonly known by the trade name "Bemberg", owned by the J.P. Bemberg company. The fabric may also be known as "cupro" or "cupra". It is also known as "ammonia silk" on Chinese fashion retail websites. History Cuprammonium rayon was invented in 1890. Swiss chemist Matthias Eduard Schweizer (1818–1860) discovered that cellulose dissolves in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfuric Acid
Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid (English in the Commonwealth of Nations, Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and hydrogen, with the molecular formula . It is a colorless, odorless, and Viscosity, viscous liquid that is Miscibility, miscible with water. Pure sulfuric acid does not occur naturally due to its Dehydration reaction, strong affinity to water vapor; it is Hygroscopy, hygroscopic and readily absorbs water vapor from the Atmosphere of Earth, air. Concentrated sulfuric acid is a strong oxidant with powerful dehydrating properties, making it highly corrosive towards other materials, from rocks to metals. Phosphorus pentoxide is a notable exception in that it is not dehydrated by sulfuric acid but, to the contrary, dehydrates sulfuric acid to sulfur trioxide. Upon addition of sulfuric acid to water, a considerable amount of heat is releas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extrusion
Extrusion is a process used to create objects of a fixed cross section (geometry), cross-sectional profile by pushing material through a Die (manufacturing), die of the desired cross-section. Its two main advantages over other manufacturing processes are its ability to create very complex cross-sections; and to work materials that are brittle, because the material encounters only compressive stress, compressive and shear stress, shear stresses. It also creates excellent surface finish and gives considerable freedom of form in the design process. Drawing (manufacturing), Drawing is a similar process, using the tensile strength of the material to pull it through the die. It limits the amount of change that can be performed in one step, so it is limited to simpler shapes, and multiple stages are usually needed. Drawing is the main way to produce wire. Metal Bar stock, bars and tube (fluid conveyance), tubes are also often drawn. Extrusion may be continuous (theoretically producin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drapery
Drapery is a general word referring to cloths or textiles (Old French , from Late Latin">-4; we might wonder whether there's a point at which it's appropriate to talk of the beginnings of French, that is, when it wa ... , from Late Latin ). It may refer to cloth used for decorative purposes – such as around windows – or to the trade of retailing cloth, originally mostly for clothing, formerly conducted by drapers. Drape Drape (draping or fabric drape) is the property of different textile materials describing how they fold, fall, or hang over a three-dimensional body. Draping depends upon the fiber characteristics and the flexibility, looseness, and Hand feel, softness of the material. Draped garments follow the form of the human body beneath them. Art In art history, drapery refers to any cloth or textile depicted, which is usually clothing. The schematic depiction of the folds and woven patterns of loose-hanging clothing on the human form, with ancient prototype ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degree Of Polymerization
The degree of polymerization, or DP, is the number of structural unit, monomeric units in a macromolecule or polymer or oligomer molecule. For a homopolymer, there is only one type of monomeric unit and the ''number-average'' degree of polymerization is given by \overline_n\equiv\overline_n=\frac, where \overline_n is the Molar mass distribution#Number average molar mass, number-average molecular weight and M_0 is the molecular weight of the monomer unit. The overlines indicate arithmetic mean values. For most industrial purposes, degrees of polymerization in the thousands or tens of thousands are desired. This number does not reflect the variation in molecule size of the polymer that typically occurs, it only represents the mean number of monomeric units. Some authors, however, define DP as the number of repeat units, where for copolymers the repeat unit may not be identical to the monomeric unit.Fried J.R. "Polymer Science and Technology" (Pearson Prentice-Hall, 2nd edn 2003), p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vereinigte Glanzstoff-Fabriken
Vereinigte Glanzstoff-Fabriken (VGF, United Rayon Factories) was a German manufacturer of artificial fiber founded in 1899 that became one of the leading European producers of rayon. During the first thirty years VGF cooperated closely with the British manufacturer Courtaulds and other companies to share technology and maintain prices by avoiding competition. It merged with the Dutch firm Enka in 1929 under the holding company Algemene Kunstzijde Unie (AKU), but the two retained their legal identities. AKU made significant investments in rayon production in the United States. The company suffered government interference in Nazi Germany (1933–45) and lost competitive strength during World War II, but partly recovered after the war with American assistance. In 1969 AKU merged with the Dutch manufacturer KZO to form AKZO, now part of AkzoNobel. Successor companies formed during various divestitures, mergers and acquisitions continue to be active in various related industries. Orig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silk
Silk is a natural fiber, natural protein fiber, some forms of which can be weaving, woven into textiles. The protein fiber of silk is composed mainly of fibroin and is most commonly produced by certain insect larvae to form cocoon (silk), cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm ''Bombyx mori'' reared in captivity (sericulture). The shimmering appearance of silk is due to the triangular Prism (optics), prism-like structure of the silk fibre, which allows silk cloth to refract incoming light at different angles, thus producing different colors. Harvested silk is produced by several insects; but, generally, only the silk of various moth caterpillars has been used for textile manufacturing. There has been some research into other types of silk, which differ at the molecular level. Silk is mainly produced by the larvae of insects undergoing holometabolism, complete metamorphosis, but some insects, such as webspinners and Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AkzoNobel
Akzo Nobel N.V., stylised as AkzoNobel, is a Dutch multinational corporation, multinational company which creates paints and performance coatings for both industry and consumers worldwide. Headquartered in Amsterdam, the company has activities in more than 150 countries. AkzoNobel is the world's third-largest paint manufacturer by revenue after Sherwin-Williams and PPG Industries. History AkzoNobel has a long history of mergers and divestments. Parts of the current company can be traced back to 17th-century companies. History and formation of Akzo Akzo was formed in 1969 as merger of Algemene Kunstzijde Unie (General Artificial Silk Union; AKU) and Koninklijke Zout Organon (Royal Salt Organon; KZO). The AKU was formed in 1929 when the Vereinigte Glanzstoff-Fabriken (est. 1899) and Nederlandse Kunstzijdefabriek (ENKA, est. 1911) merged, forming Algemene Kunstzijde Unie (AKU). The latter faced, amongst others, technical problems in the manufacturing of synthetic fibers. Its fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aachen
Aachen is the List of cities in North Rhine-Westphalia by population, 13th-largest city in North Rhine-Westphalia and the List of cities in Germany by population, 27th-largest city of Germany, with around 261,000 inhabitants. Aachen is located at the northern foothills of the High Fens and the Eifel Mountains. It sits on the Wurm (Rur), Wurm River, a tributary of the Rur (river), Rur, and together with Mönchengladbach, it is the only larger German city in the drainage basin of the Meuse. It is the westernmost larger city in Germany, lying approximately west of Cologne and Bonn, directly bordering Belgium in the southwest, and the Netherlands in the northwest. The city lies in the Meuse–Rhine Euroregion and is the seat of the Aachen (district), district of Aachen ''(Städteregion Aachen)''. The once Celts, Celtic settlement was equipped with several in the course of colonization by Roman people, Roman pioneers settling at the warm Aachen thermal springs around the 1st cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
