Velcro is the brand name of the first commercially marketed fabric hook-and-loop fastener, invented in 1948 by the Swiss electrical engineer George de Mestral. De Mestral patented Velcro in 1955, subsequently refinding and developing its practical manufacture until its commercial introduction in the late 1950s.
The word ''Velcro'' is a portmanteau of the two French words ''velours'' and ''crochet'', or "hook".
Hook-and-loop fasteners consist of two components: typically, two lineal fabric strips (or, alternatively, round "dots" or squares) which are attached (e.g., sewn, adhered, etc.) to the opposing surfaces to be fastened. The first component features tiny hooks; the second features even smaller and "hairier" loops. When the two faces are pressed together, the hooks catch in the loops and the two pieces fasten or bind temporarily. When separated, by pulling or peeling the two surfaces apart, the velcro strips make a distinctive "ripping" sound.
The first Velcro sample was made of cotton, which proved impractical and was replaced by Nylon and polyester. Velcro fasteners made of Teflon loops, polyester hooks, and glass backing are used in aerospace applications, e.g. on space shuttles.
Variations on the standard Velcro hook and loop fasteners include hooks on both faces, buttons, zippers, laces, and buckles.
George de Mestral's patent expired in 1978, but the term ''Velcro'' is a registered trademark in most countries. Generic terminology for these fasteners includes "hook and loop", "burr" and "touch" fasteners. However the Velcro brand is an example of a genericized trademark as its brand name has become the generic term in many languages. The Velcro company headquarters is in Manchester, New Hampshire, USA.
The hook-and-loop fastener was invented in 1941 by Swiss engineer, Georges de Mestral who lived in Commugny, Switzerland. The idea came to him one day after returning from a hunting trip with his dog in the Alps. He took a close look at the burrs (seeds) of burdock that kept sticking to his clothes and his dog's fur. He examined them under a microscope, and noted their hundreds of "hooks" that caught on anything with a loop, such as clothing, animal fur, or hair. He saw the possibility of binding two materials reversibly in a simple fashion, if he could figure out how to duplicate the hooks and loops.
Originally people refused to take him, and the idea, seriously when he took his idea to Lyon, which was then a center of weaving. He did manage to gain the help of one weaver, who made two cotton strips that worked. However the cotton wore out quickly, so de Mestral turned to synthetic fibers. He settled on nylon as being the best synthetic, which had several advantages. Nylon doesn’t break down, rot, or attract mold, and it could be produced in threads of various thickness. Nylon had only recently been invented, and through trial and error he eventually discovered that, when sewn under hot infrared light, nylon forms hooks that were perfect for the hook side of the fastener. Though he had figured out how to make the hooks, he had yet to figure out a way to mechanize the process, and to make the looped side. Next he found that nylon thread, when woven in loops and heat-treated, retains its shape and is resilient; however, the loops had to be cut in just the right spot so that they could be fastened and unfastened many times. On the verge of giving up, a new idea came to him. He bought a pair of shears and trimmed the tops off the loops, thus creating hooks that would match up perfectly with the loops in the pile.
Mechanizing the process of weaving the hooks took eight years, and it took another year to create the loom that trimmed the loops after weaving them. In all, it took ten years to create a mechanized process that worked. He submitted his idea for patent in Switzerland in 1951 and the patent was granted in 1955. Within a few years he obtained patents and began to open shops in Germany, Switzerland, Great Britain, Sweden, Italy, the Netherlands, Belgium, and Canada. In 1957 he branched out to the textile center of Manchester, New Hampshire in the United States. Columnist Sylvia Porter made the first mention of the product in her column ''Your Money's Worth'' of August 25, 1958, writing "It is with understandable enthusiasm that I give you today an exclusive report on this news: A 'zipperless zipper' has been invented — finally. The new fastening device is in many ways potentially more revolutionary than was the zipper a quarter century ago." A Montreal firm, Velek, Ltd., acquired the exclusive right to market the product in North and South America, as well as in Japan, with American Velcro, Inc. of New Hampshire, and Velcro Sales of New York, marketing the "zipperless zipper" in the United States.
De Mestral obtained patents in many countries right after inventing Velcro as he expected a high demand immediately. Partly due to its appearance, though, Velcro's integration into the textile industry took time. At the time, Velcro looked like it had been made from leftover bits of cheap fabric, and thus was not sewn into clothing or used widely when it debuted in the early 1960s. It was also viewed as impractical.
Velcro got its first break when it was used in the aerospace industry to help astronauts maneuver in and out of bulky space suits. However, this reinforced the view among the populace that Velcro was something with very limited utilitarian uses. The next major use Velcro saw was with skiers, who saw the similarities between their costume and the astronauts, and thus saw the advantages of a suit that was easier to don and remove. Scuba and marine gear followed soon after. After seeing astronauts storing food pouches on walls, children's clothing makers came onboard. As Velcro only became widely used after NASA's adoption of it, NASA is popularly — and improperly — credited with its invention.
Later improvements included strengthening the filament by adding polyester.
In 1978 de Mestral's patent expired, prompting a flood of low-cost imitations from Taiwan, China and South Korea onto the market. Today, the trademark is the subject of more than 300 trademark registrations in over 159 countries. George de Mestral was inducted into the national inventors hall of fame for his invention. He once offered some advice to Velcro executives:
"If any of your employees ask for a two-week holiday to go hunting, say yes."
The big breakthrough George de Mestral made was to think about hook-and-eye closures on a greatly reduced scale. Hook and eye fasteners have been common for centuries, but what was new about Velcro was the scale of the hooks and eyes. Shrinking the hooks led to the two other important differences. Firstly, instead of a single-file line of hooks, Velcro has a two-dimensional surface. This was needed, because in decreasing the size of the hooks, the strength was also unavoidably lessened, thus requiring more hooks for the same strength. The other difference is that Velcro has indeterminate match-up between the hooks and eyes. With larger hook and eye fasteners, each hook has its own eye. On a scale as small as that of Velcro, matching up each of these hooks with the corresponding eye is impractical, thus leading to the indeterminate matching.
Besides being used as a generic term for hook and loop fasteners, the word "Velcro" has also become a verb, as in "Velcroed", which means to be attached by Velcro. It has been used as such since approximately 1972.
Velcro is strong enough that a two inch square piece is enough to support a person. The strength of the bond depends on how well the hooks are embedded in the loops, how much surface area is in contact with the hooks, and the nature of the force pulling it apart. If Velcro is used to bond two rigid surfaces, e.g. auto body panels and frame, the bond is particularly strong because any force pulling the pieces apart is spread evenly across all hooks. Also, any force pushing the pieces together is disproportionally applied to engaging more hooks and loops. Vibration can cause rigid pieces to improve their bond. Full-body Velcro suits have been made that can hold a person to a suitably covered wall.
When one or both of the pieces is flexible, e.g. a pocket flap, the pieces can be pulled apart with a peeling action that applies the force to relatively few hooks at a time. If a flexible piece is pulled in a direction parallel to the plane of the Velcro surface, then the force is spread evenly as it is with rigid pieces.
Three ways to maximize the strength of a bond between the two flexible pieces are:
Shoe closures can resist a large force with only a small amount of Velcro. This is because the strap is wrapped through a slot, halving the force on the bond by acting as a pulley system (thus gaining a mechanical advantage), and further absorbing some of the force in friction around the tight bend. This layout also ensures that the force is parallel to the Velcro strips.
Velcro has several deficiencies: it tends to accumulate hair, dust, and fur in its hooks after a few months of regular use. The loops can become elongated or broken after extended use. Velcro often becomes attached to articles of clothing, especially loosely woven items like sweaters. Additionally, the clothing may be damaged when one attempts to remove the Velcro, even if they are separated slowly. The tearing noise made by unfastening Velcro makes it inappropriate for some applications. For example, a soldier hiding from the enemy would not want to alert the enemy to his or her position by opening a Velcro pocket. It also absorbs moisture and perspiration when worn next to the skin, which means it will smell if not washed.
Textiles can contain chemicals or compounds, e.g. dyes, that may be allergenic to sensitive populations. Velcro products have been tested according to the Oeko-tex certification standard which imposes limits on the chemical content of textiles to address the issue of human ecological safety.
Velcro held together a human heart during the first artificial heart surgery, and it is used in nuclear power plants and army tanks to hold flashlights to walls. Cars use it to bond headliners, floor mats and speaker covers. It is used in the home when pleating draperies, holding carpets in place and attaching upholstery, among many other things. It closes backpacks, briefcases and notebooks, secures pockets, and holds disposable diapers, and diaper covers for cloth diapers, on babies. It is an integral part of the game tag rugby, is used in surfboard leashes and orthopaedic braces.
NASA makes significant use of Velcro. Each space shuttle has ten thousand inches of a special Velcro made of Teflon loops, polyester hooks, and glass backing. Velcro is used everywhere, from the astronauts' suits, to anchoring equipment. In the near weightless conditions in orbit, Velcro is used to temporarily hold objects and keep them from floating away. A Velcro patch is used inside astronauts' helmets where it serves as a nose scratcher. During mealtimes astronauts use trays that attach to their thighs using spring and Velcro fasteners.
The US Army is another big user. It uses Velcro fasteners on combat uniforms to attach name tapes, rank insignia, shoulder pockets for unit patches, skill tabs, and recognition devices, such as the infrared (IR) feedback American flag. They also had a silent version of Velcro developed for use with Army soldier uniforms, as the ripping sound could betray a soldier's position. A new version was created which reduced the noise by over 95%. The manufacturing process to create this noiseless Velcro is, however, a military secret. There have been some failed uses for Velcro as well. One such failure was a worm collar that consisted of a cylindrical strip that fishers were supposed to slip over their live bait. The Velcro was supposed to snag in the teeth of striking bass. Another failure was a strap-on device for impotent men.
Television show host David Letterman immortalized this during the February 28, 1984 episode of Late Night with David Letterman on NBC. Letterman proved that with enough Velcro a man could be hurled against a wall and stick, by performing this feat during the television broadcast. This put Velcro in the national spotlight.
Velcro jumping goes beyond David Letterman, though. Amusement companies rent Velcro walls and jumpsuits for $400-$500 a day. It was also done on a regular basis in pubs in both New York and New Zealand, where it is a competition to see how high a person can get their feet above the ground. Jeremy Bayliss and Graeme Smith of the Cri Bar and Grill in Napier, New Zealand, started it after seeing American astronauts Velcroed to walls during space flights. They created their own equipment for the "human fly" contests, and sold it to several others in New Zealand.
The game moved to the U.S. after Sports Illustrated published a story on it in 1991. Adam Powers and Stephen Wastell of the Perfect Tommy's bar in New York city read of the game, and soon became the United States distributor of Human Bar Fly equipment. Velcro wall-jumping now exists in dozens of New Zealand bars and is said to be one of the favorite bar activities there.
Besides self-propulsion, dwarf tossing has become a popular bar sport in some locations. Instead of jumping, midgets are thrown by normal-sized people. This has occasionally attracted the ire of human rights groups, although many of the dwarfs have claimed themselves as participants in the enjoyment of the game.
The advantages of this new Velcro are that it is more durable (it does not wear down over time), is eight times stronger, and makes no noise when fastened or unfastened. However it is thicker and bulkier, which limits some of its applications. It also is not as flexible as Velcro.
Heavy duty variants (e.g., "Dual Lock" by 3M) feature mushroom shaped stems on each face of the velcro, providing an audible snap when the two faces mate. A strong adhesive backings adheres each component to its substrate.
Velcro has become part of a recurring joke in various media in which it is claimed that modern humans would be unable to invent it, and that it is in fact a form of advanced technology. For example, K claims in ''Men in Black'' that Velcro was originally alien technology, and a 2002 ''Star Trek Enterprise'' episode features Velcro as being given to modern society by Vulcans in 1957. As a tongue in cheek reference, one of the Vulcans in the episode was named Mestral, after Velcro's actual inventor. More recently one of the characters in the 2004 film ''Garden State'' made a vast fortune from inventing silent Velcro. Sacha Baron Cohen's character Bruno wears a "Velcro" suit in the movie of the same name (which causes him to have everything made of cloth to attach to himself, consequently leading to disastrous results and ultimately causes the loss of his job).
That Velcro has entered popular culture is also evidenced by its use as a verb, as in "He velcroed his shoes." meaning to fasten the shoes with Velcro.
Category:Swiss inventions Category:Brand name materials Category:Textile closures Category:1941 introductions
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This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
name | Pete Yorn |
---|---|
background | solo_singer |
birth name | Peter Joseph Yorn |
born | July 27, 1974, Montville, New Jersey, United States |
instrument | VocalsGuitarHarmonicadrums |
genre | RockSinger-songwriter |
years active | 2000–present |
label | Columbia, Rhino, Vagrant, Warner Brothers (France), Trampoline |
associated acts | Minibar |
website | peteyorn.com |
notable instruments | }} |
After experiencing this taste of success, Yorn released his 2001 LP debut, entitled ''musicforthemorningafter'', which went gold on the strength of the album's lead single, "Life on a Chain." Rolling Stone Magazine named Yorn one of "Ten [artists] to Watch in 2001" and gave the album a favorable four-star rating.
Yorn went on to release the 2003 album ''Day I Forgot'' which has sold over 300,000 copies to date and scored a third radio hit with the song "Come Back Home."
In 2006, Yorn released his third album, ''Nightcrawler''. Nightcrawler was named one of the top 20 records of 2006 by Paste magazine.
Guitarist Peter Buck of the band R.E.M. has made appearances on several Pete Yorn recordings, including instrumentation on the single version of "Strange Condition" and a number of songs from the ''Day I Forgot'' LP. Yorn has worked with producers R. Walt Vincent, Brad Wood, and Ken Andrews of Failure and Year of the Rabbit, in addition to several other producers including Scott Litt, Butch Walker and Sonic Youth producer Don Fleming.
Yorn has shared bills with the Dave Matthews Band, R.E.M., Crowded House, Foo Fighters, Weezer, Coldplay, The Dixie Chicks, Semisonic, and Sunny Day Real Estate, among others.
Yorn's song, "Lose You" can be heard just before the ending credits of the episode "Simple Explanation" on the Fox show ''House, MD''.
In September 2006, in an interview with silentuproar.com, Yorn elaborated on his true intentions behind the trilogy, remarking that it was at least partially a conscious trilogy but wasn't meant to be taken too seriously: "I didn't mean like a ''Star Wars'' trilogy where it's one story at all." Yorn expressed that the "trilogy" was more of a diary of sorts; a person gaining new life experiences and simply commenting on them in linear order. "So it's a sort of continuing analysis of those topics, and the ''Nightcrawler'' LP would represent a later phase," Yorn said.
According to several sources, Yorn has been writing and recording a respectable amount of new material to be released in 2009 (It's 2011 now); namely two new records. The producers are Mike Mogis (Bright Eyes) and Frank Black (from Pixies). Two new songs have been released for download on various fan pages that are expected to be included on the new albums; "Sans Fear" and "Shotgun," respectively.
Yorn appears on Canadian artist Matthew Good's 2009 album ''Vancouver'' performing backing vocals.
"Can't Hear Anyone," a song that Yorn wrote during the Nightcrawler sessions, was recently used for a Mercedes-Benz commercial and was released as a digital single on March 31, 2009.
Columbia Records released his Mike Mogis-produced album, entitled Back & Fourth on June 23, 2009.
Yorn toured with Coldplay as an opening act through summer 2009 and collaborated with actress/musician Scarlett Johansson to record a project entitled "Break Up." Pete's brother Rick is Scarlett's agent. The album was released on September 15, 2009, and its first single—"Relator"—was released digitally on May 26, 2009. The record has since gone Platinum in France.
Yorn released a self titled album on September 28, 2010. This record was released by Vagrant Records, and produced by Frank Black of The Pixies. It received a favorable 8/10 stars in Spin magazine and 4/5 stars in Mojo. He toured the US and Canada in support of this record Feb 14-April 17, 2011.
Year !! Album !! Billboard 200 | US !! FR !! CH !! RIAA Certification | ||||
2001 | ''musicforthemorningafter'' | 111| | - | - | Gold |
2003 | ''Day I Forgot''| | 18 | - | - | - |
2006 | ''Nightcrawler (album)Nightcrawler'' || | 50 | - | - | - |
2009 | ''Back and Fourth (Pete Yorn album)Back and Fourth'' || | 32 | - | - | - |
2009 | ''Break Up (album)Break Up'' (with Scarlett Johansson) || | 41 | 18 | 58 | - |
2010 | ''Pete Yorn (album)Pete Yorn'' || | 66 | - | - | - |
Year | Title | Chart Positions | Album | ||
!width="86" | !width="86" | Adult Top 40 | |||
2001 | "Life on a Chain" | ''musicforthemorningafter'' | |||
2001 | "For Nancy ('Cos It Already Is)" | ''musicforthemorningafter'' | |||
2002 | "Strange Condition" | ''musicforthemorningafter'' | |||
2003 | ''Day I Forgot'' | ||||
2003 | "Crystal Village" | ''Day I Forgot'' | |||
2006 | |||||
2007 | |||||
2009 | |||||
2009 | |||||
2010 | ''Pete Yorn'' |
Yorn's Back & Fourth touring band was:
Pete Yorn's Nightcrawler era touring band was Minibar, hailing from Britain and including the following members:
Pete Yorn's former backing band went by the name Dirty Bird and includes the following members:
Pete Yorn's "eternal bandmates":
Category:1974 births Category:American folk guitarists Category:American folk singers Category:American harmonica players Category:American rock guitarists Category:American rock singers Category:Columbia Records artists Category:Living people Category:People from Montville, New Jersey Category:Syracuse University alumni Category:Musicians from New Jersey Category:American rock singer-songwriters Category:The Minus 5 members
de:Pete Yorn es:Pete Yorn fr:Pete Yorn it:Pete Yorn no:Pete Yorn pt:Pete Yorn ru:Йорн, Пит sv:Pete Yorn uk:Піт ЙорнThis text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
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