The history of bulletproof vest development

• Body armor, a crucial component of personal protective equipment, has evolved from metal armor protection plates to non-metallic synthetic materials and from pure synthetic materials to composite systems that include metal armor plates, ceramic protective sheets, and synthetic materials. Human armor's earliest forms date back thousands of years. Primitive peoples wore belts made of woven natural fibers to shield their chests from injury. The advancement of human armour was compelled by the development of weapons. Body armor made in America began to be made with the same silk used in Japanese medieval armor as early as the late 1800s. Congress in the United States became aware of body armor following the 1901 assassination of President William McKinley.Although this type of body armor can protect against low-velocity pistol bullets (bullet speed is 122 m/s), it cannot protect against rifle bullets. Thus, in World War I, body armor made of natural fiber fabrics and steel plates appeared. Thick silk clothing was once the main component of body armor. Silk, however, quickly deteriorated in the trenches. This flaw, coupled with silk's limited ballistic resistance and high cost, caused silk body armor to be ignored by the U.S. Ordnance Department during World War I and failed to become popular. In World War II, the lethality of shrapnel increased by 80%, and 70% of the wounded died from torso injuries. Participating countries, especially the United Kingdom and the United States, began to spare no effort in developing body armor.

  
  

  The British Army was the first to successfully design a bulletproof vest made of three high-manganese steel plates in October 1942. 23 different kinds of body armor were put through testing and formally approved in the US in 1943. During this time, special steel was the primary bulletproof material utilized in body armor. The U.S. Army successfully created a bulletproof vest in June 1945 using high-strength nylon and aluminum alloy. The M12 infantry body armor model is this one. Among them was nylon 66, a recently developed synthetic fiber at the time known by its scientific name, polyamide 66 fiber. Its specific gravity is 1.14 g/(cm)3, its breaking strength (gf/d: grams force/denier) is 5.9-9.5, and its initial modulus (gf/d) is 21-58. Its strength is nearly twice that of cotton fiber. During the Korean War, the US military was equipped with T52 all-nylon body armor made of 12 layers of ballistic nylon, while the Marine Corps was equipped with the M1951 hard "Duolong" fiberglass bulletproof vest, which weighed 2.7 to 3.6 kilograms. between. Bulletproof vests made of nylon can provide soldiers with a certain degree of protection, but they are bulky and can weigh up to 6 kilograms. In the early 1970s, the American DuPont Company successfully developed Kevlar, a synthetic fiber with ultra-high strength, ultra-high modulus, and high temperature resistance, and it was quickly applied in the field of bulletproofing. The emergence of this high-performance fiber has greatly improved the performance of soft textile body armor, and also greatly improved the comfort of body armor. The U.S. military was the first to use Kevlar to make body armor and developed two models, light and heavy.

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• The first known use of bulletproof vests was to thwart assassins in Ireland in the middle of the 19th century. Though they were not always a welcomed addition to the uniform, they are now standard life-saving equipment for police officers. Jim Ritter, a Seattle police officer, has further information about this "Flashback." Before bulletproof vests were developed, law enforcement officials around the country had to live in constant fear of being shot or killed by armed criminals while performing their duties. A particular kind of vest was created in the late 1920s; it was a gentleman's vest with woven-in steal straps. It was incredibly heavy, quite unpleasant, and very unuseful. The inventor was so confident that this would save the lives of police officers, he would actually wear the vest and have a police officer fire into it, saving his life. It was an instant success.”

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  Our company have these helmet like as follows:
  

  
  

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• Military Full Protection Jungle Bulletproof Jacke
  Conform to NIJ Standard-0101.06
  Level IIIA is threat tested against .357, 9mm, 45acp, .44 magnum
  Water-resistant panel cover with heat-sealed seams
  Lightweight 4-way stretch ripstop shell fabric

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• High Protection Level Ballistic Vest with Molle system Specification
  Lightweight 4-way stretch ripstop shell fabric
  Complementary lightweight spacer mesh liner for improved airflow
  Front and back plate pocket for optional level IIIA, III, IV hard plates
  With a variety of equipment bags

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• Quick-release Multi-functional Bulletproof Vest for Police
  Level IIIA is threat tested against .357, 9mm, 45acp, .44 magnum
  Water-resistant panel cover with heat-sealed seams
  Lightweight 4-way stretch ripstop shell fabric
  Complementary lightweight spacer mesh liner for improved airflow

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• New design Multi-functional Bulletproof Vest Specification
  Conform to NIJ Standard-0101.06
  Level IIIA is threat tested against .357, 9mm, 45acp, .44 magnum
  Water-resistant panel cover with heat-sealed seams
  Lightweight 4-way stretch ripstop shell fabric
  Complementary lightweight spacer mesh liner for improved airflow
  Front and back plate pocket for optional level IIIA, III, IV hard plates
  

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  Bulletproof Vest like those made by
  Choweyarmor company are examples
  of the latest materials being employed in its production.
  
  

• The new body armor is primarily composed of Kevlar fiber fabric, with a layer of bulletproof nylon fabric. With a median weight of 3.83 kg, the lightweight body armor is made of six layers of Kevlar cloth. Following its commercialization, Kevlar's superior all-around qualities led to its rapid adoption in body armor by numerous nations' armed forces. Due to the popularity of Kevlar, Twaron, and Spectra, as well as their use in body armor, soft body armor comprised of high-performance textile fibers has become more and more common. Its application scope is not limited to the military field, and has gradually expanded to Police and political circles. But for high-speed bullets, especially bullets fired from rifles, pure soft body armor is still insufficient. To this end, people have developed soft and hard composite body armor, using fiber composite materials as reinforcing panels or inserts to improve the overall bulletproof capability of the body armor. To sum up, the development of modern body armor has gone through three generations: the first generation is hard body armor, which mainly uses special steel, aluminum alloy and other metals as bulletproof materials.