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Cordura
Cordura is a brand of synthetic fiber-based fabrics used in products such as luggage, backpacks, trousers, military wear, and performance apparel. Cordura was developed and trademarked by E.I. du Pont de Nemours and Company (DuPont) in 1929; it is currently owned by Invista, a subsidiary of Koch Industries. Overview DuPont introduced Cordura as a type of rayon, a semi-synthetic fiber made from natural sources of regenerated cellulose. Development In 1948 DuPont claimed its 'Cordura' high-tenacity rayon was "as strong as mild steel yet able to stand up under repeated flexing":”Du Pont Digest” (advertisement), Notre Dame Scholastic, Vol 89 No. 21, 9 April 1948, 7. “DuPont scientists were working to improve on the properties of rayon…when, in 1928, a rubber company asked for a rayon yarn that would be stronger than cotton for tire cords. The problem was given to a team of organic, physical, and analytical chemists, chemical and mechanical engineers and physicists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nylon
Nylon is a family of synthetic polymers characterised by amide linkages, typically connecting aliphatic or Polyamide#Classification, semi-aromatic groups. Nylons are generally brownish in color and can possess a soft texture, with some varieties exhibiting a silk-like appearance. As Thermoplastic, thermoplastics, nylons can be melt-processed into fibres, Thin film, films, and diverse shapes. The properties of nylons are often modified by blending with a variety of additives. Numerous types of nylon are available. One family, designated nylon-XY, is derived from diamines and dicarboxylic acids of carbon chain lengths X and Y, respectively. An important example is nylon-6,6 (). Another family, designated nylon-Z, is derived from amino acid, aminocarboxylic acids with carbon chain length Z. An example is nylon-[6]. Nylon polymers have extensive commercial applications, including uses in textiles and fibres (such as apparel, flooring and rubber reinforcement), molded components fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Cordura Garment
Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The term ''blue'' generally describes colours perceived by humans observing light with a dominant wavelength that's between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called the Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective. Blue has been an important colour in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultramar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cellulose Fiber
Cellulose fibers () are fibers made with ethers or esters of cellulose, which can be obtained from the bark, wood or leaves of plants, or from other plant-based material. In addition to cellulose, the fibers may also contain hemicellulose and lignin, with different percentages of these components altering the mechanical properties of the fibers. The main applications of cellulose fibers are in the textile industry, as chemical filters, and as fiber-reinforcement composites, due to their similar properties to engineered fibers, being another option for biocomposites and polymer composites. History Cellulose was discovered in 1838 by the French chemist Anselme Payen, who isolated it from plant matter and determined its chemical formula. Cellulose was used to produce the first successful thermoplastic polymer, celluloid, by Hyatt Manufacturing Company in 1870. Production of rayon ("artificial silk") from cellulose began in the 1890s, and cellophane was invented in 1912. In 1893, ... [...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] |
Denim
Denim is a sturdy cotton warp-faced textile in which the weft passes under two or more Warp (weaving), warp threads. This twill weave produces a diagonal ribbing that distinguishes it from cotton duck. Denim, as it is recognized today, was first produced in Nîmes, France. Denim is available in a range of colors, but the most common denim is Indigo dye, indigo denim in which the Warp (weaving), warp thread is dyed while the weft thread is left white. As a result of the warp-faced twill weaving, one side of the textile is dominated by the blue warp threads, and the other side is dominated by the white weft threads. Jeans fabricated from this cloth are thus predominantly white on the inside. Denim is used to create a wide variety of garments, accessories, and furniture. Etymology ''Denim'' originated as a contraction of the French phrase ('Serge (fabric), serge from Nîmes'). History Denim has been used in the United States since the mid-19th century. Denim initially gained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Layered Clothing
Layered clothing is the wearing of multiple garments on top of each other, often for warmth. Layers Often, clothing combines two adjacent layers, as in the case of warm undergarments that provide both comfort and insulation. Layered clothing usually consists of three layers. They are identified as follows: * The inner layer provides comfort by keeping the skin dry. Also called ''base layer'' or ''first layer''. The purpose of the inner layer is to draw sweat away from the skin to the outer layers to make them feel warmer. If a piece of clothing does not transfer moisture well, it is not strictly an inner layer garment but simply a mid-layer garment. Wool has a combination of wicking and water-repelling properties. and is highly odour-resistant. * The mid layer or insulating layer provides additional insulation. Mid layer materials includes wool, which provides insulation and has the capacity to absorb moisture. Synthetic fiberfill, such as polyester fiber, is used similarl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denier (unit)
Textile fibers, Thread (yarn), threads, yarns and fabrics are measured in a multiplicity of units. * A fiber, a single filament of natural material, such as cotton, linen or wool, or artificial material such as nylon, polyester, metal or mineral fiber, or human-made cellulosic fibre like viscose, Modal, Lyocell or other rayon fiber is measured in terms of linear mass density, the weight of a given length of fiber. Various units are used to refer to the measurement of a fiber, such as: the #Denier, denier and #Tex, tex (linear mass density of fibers), #S or super S number, super S (fineness of wool fiber), worsted count, woolen count, #Linen count, linen count (wet spun) (or Number English (Ne)), #Units, cotton count (or Number English (Ne)), Number metric (Nm) and #Yield, yield (the reciprocal of denier and tex). * A yarn, a spun wikt:agglomeration, agglomeration of fibers used for knitting, weaving or sewing, is measured in terms of cotton count and yarn density. * Thread, usuall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyester
Polyester is a category of polymers that contain one or two ester linkages in every repeat unit of their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include some naturally occurring chemicals, such as those found in plants and insects. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are used extensively in clothing. Polyester fibers are sometimes spun together with natural fibers to produce a cloth with blended properties. Cotton-polyester blends can be strong, wrinkle- and tear-resistant, and reduce shrinking. Synthetic fibers using polyester have high water, wind, and environmental resistance compared to plant-derived fibers. They are less Fireproofing, fire-resistant and can melt when ignited. Liquid crystalline polyesters are among the first industrially used liquid crystal polymers. They are used for their mechanical propert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JanSport
JanSport is an American brand of backpacks and collegiate apparel, now owned by VF Corporation, one of the world's largest apparel companies. JanSport is the world's largest backpack maker. Nearly half of all small backpacks sold in the United States are produced by JanSport and its sister brand The North Face, also owned by VF Corporation. History Murray Pletz (who changed his name to Murray McCrory in the early 1980s), an industrial design student, designed a backpack that used aluminum in its flexible frame. In January of 1966, Murray Pletz bought his girlfriend, Jan Lewis, a $180 sewing machine to sew the backpack. Pletz entered the finished backpack project in a design contest sponsored by the Aluminum Company of America and won the prize. Using the contest award money, JanSport was founded in 1967 in Seattle, Washington, United States by Murray Pletz, his future wife (they married two years later) Janis "Jan" Lewis (for whom the company is named), and his father Norman Pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastpak
Eastpak is an American worldwide lifestyle brand founded in Boston, Massachusetts, specializing in the design, development, manufacturing and worldwide marketing and distribution of a range of products including bags, backpacks, travel gear and accessories. In 1952, the company began as Eastern Canvas Products USA, Inc., producing bags and packs for the U.S. military before focusing on the consumer market in 1976 under the brand name Eastpak. It is part of the VF Corporation brand portfolio. History Founding Eastpak was founded in 1952 by Bernard Godfrey of Newton, Mass, as Eastern Canvas Products USA Inc. He was later joined by his son, William, and a third partner, Monte Goldman, and began by specializing in safety equipment for the U.S. Army. However, the company's direction changed dramatically when Goldman's son, Mark Goldman, joined the company in 1976. He transformed the company's retail product line into a consumer brand and launched the first line-up of bags and packs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-ray
An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays. Roughly, X-rays have a wavelength ranging from 10 Nanometre, nanometers to 10 Picometre, picometers, corresponding to frequency, frequencies in the range of 30 Hertz, petahertz to 30 Hertz, exahertz ( to ) and photon energies in the range of 100 electronvolt, eV to 100 keV, respectively. X-rays were discovered in 1895 in science, 1895 by the German scientist Wilhelm Röntgen, Wilhelm Conrad Röntgen, who named it ''X-radiation'' to signify an unknown type of radiation.Novelline, Robert (1997). ''Squire's Fundamentals of Radiology''. Harvard University Press. 5th edition. . X-rays can penetrate many solid substances such as construction materials and living tissue, so X-ray radiography is widely used in medical diagnostics (e.g., checking for Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
