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Velcro IP Holdings LLC, [2] [4] [5] trading as Velcro Companies and commonly referred to as Velcro (pronounced / ˈ v ɛ l k r oʊ /), [1] is a British privately held company, founded by Swiss electrical engineer George de Mestral in the 1950s. It is the original manufacturer of hook-and-loop fasteners, which de Mestral invented. [2]
Hook-and-loop fasteners, commonly known as Velcro (a genericized trademark), hook-and-pile fasteners or touch fasteners are versatile fastening devices that allow two surfaces to be repeatedly attached and detached with ease. Invented in the mid-20th century, they are widely used in clothing, accessories, and various industrial and consumer ...
US Army Sustainment Center of Excellence patch ceremony, 2009. Embroidered patches were first adopted by United States military units, with some crude, unofficial examples found on soldiers’ uniforms from the War of 1812, 1845 Mexican War, and the Civil War (1861–65) Unit identifications, also known as shoulder sleeve insignia (or SSI) is a relatively new component of the modern military ...
These SSI are primarily foliage green, light brown, and black, though a few patches also feature red and maroon colors for some details. Unlike previous patches, the ACU SSI are velcro-backed, designed to attach to the velcro pockets on the shoulder of the uniform, instead of being sewn on. This makes them easier to remove and replace.
The adhesive is applied to either one or both of the materials being bonded. The pieces are aligned and pressure is added to aid in adhesion and rid the bond of air bubbles. Common ways of applying an adhesive include brushes, rollers, using films or pellets, spray guns and applicator guns (e.g., caulk gun). All of these can be used manually or ...
In 2007, researchers from the University of Akron and Rensselaer Polytechnic Institute announced they had developed a form of flexible, reusable gecko tape using carbon nanotubes to create microscopic synthetic setae and spatulae capable of supporting a shear stress of 32 N/cm 2, which is four times the strength of a gecko's foot.
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