Is bullet proof clothing helpful and should it be made? Over the years the world has used bullet proof clothing to protect many people. It’s mainly used in military and police regimes. Bulletproof vests are mainly used on a daily basis by these forces. These vest are a type of modern light armor specifically designed to protect vital organs from gunfire. Some vest are specifically made to defend from knives. These are called ballistic vest, which specify in protection from stabbings with knives. Some people feel the need to ban guns and armor. Mainly because there have been many accidents that have happened with guns.
Even though these events have happened, armor and weapons shouldn’t be banned. Without these items the police and military couldn’t have proper protection to accomplish their jobs. Over the centuries, different cultures have developed body armor to use during combat situations. Some of these groups are the Mycenaean’s who came from the sixteenth century B. C. Persians and Greeks came around the fifth century B. C. They all used different types of materials to create the pieces to their protective body armor. Now in the 21st century many types of bulletproof clothing are being made.
Many of these items including trench coats, full three piece suits, and even regular shirts and pants. A company called Aspetto sells custom bullet proof clothing like. It was founded by a person named Heider and is co-run by Robert Davis. They offer the ability to customize and choose what type of clothing people would like to wear that’s also bullet proof. Many request come from the government and certain organizations. Especially people that can afford this type of material in their clothes. These people want to look good while staying protected so they most like get dress attire and fancy wears. Polly Mostendz)
Polly Mostendz asked Haider what types of styles were made. “They asked us to develop some styles that integrate ballistics to protect the stomach, heart and lungs,” Haider says. “We’ve created several possibilities so far. Because it’s all silk, the protective material is almost like a tape. It holds the weight of the ballistics, but it allows the jalabiya to retain the fluid movement of silk. ” “Mail armor is made with strings or wires of iron, steel, or brass and was developed as early as 400 B. C. near the Ukrainian city of Kiev. ”(ARTstor digital library)
Scale and lamellar were both used in 1600 B. C. “Both scale and lamellar armor were taken over by the Scythians and the Greeks. Greek armor was a wraparound of reinforced quilts with wide shoulder flaps; its lower part was a skirt of loose strips, or pteryges. A cuirass, or thorax, of hammered bronze plates realistically embossed to portray the muscles of a naked torso was also worn to protect chest and back. Greek body armor was completed by bronze greaves, that is, a covering for the lower legs, and by a round ox hide shield. Helmets were designed to enclose the entire head; in their perfected form only a Y-shaped opening for eye-slits and for breathing was left.
Sometimes, as in China, the scales were sewn into cloth pockets. ”(Funk & Wagnall) Bulletproof vest consists of a panel, a vest-shaped sheet of advanced plastics polymers that is composed of many layers of either Kevlar, Spectra Shield, or, in other countries, Twaron (similar to Kevlar) or Bynema (similar to Spectra). The layers of woven Kevlar are sewn together using Kevlar thread, while the nonwoven Spectra Shield is coated and bonded with resins such as Kraton and then sealed between two sheets of polyethylene film. (Wetherill) To make Kevlar, the polymer poly-para-phenylene terephthalamide must first be produced in the laboratory.
This is done through a process known as polymerization, which involves combining molecules into long chains. The resultant crystalline liquid with polymers in the shape of rods is then extruded through a spinneret (a small metal plate full of tiny holes that looks like a shower head) to form Kevlar yarn. The Kevlar fiber then passes through a cooling bath to help it harden. After being sprayed with water, the synthetic fiber is wound onto rolls. The Kevlar manufacturer then typically sends the fiber to throwstersf, who twist the yarn to make it suitable for weaving.
To make Kevlar cloth, the yarns are woven in the simplest pattern, plain or tabby weave, which is merely the over and under pattern of threads that interlace alternatively. Unlike Kevlar, the Spectra used in bulletproof vests is usually not woven. Instead, the strong polyethylene polymer filaments are spun into fibers that are then laid parallel to each other. Resin is used to coat the fibers, sealing them together to form a sheet of Spectra cloth. Two sheets of this cloth are then placed at right angles to one another and again bonded, forming a nonwoven fabric that is next sandwiched between two sheets of polyethylene film.
The vest shape can then be cut from the material. While Spectra Shield generally does not require sewing, as its panels are usually just cut and stacked in layers that go into tight fitting pouches in the vest, a bulletproof vest made from Kevlar can be either quilt-stitched or box-stitched. Quilt-stitching forms small diamonds of cloth separated by stitching, whereas box stitching forms a large single box in the middle of the vest. Quilt-stitching is more labor intensive and difficult, and it provides a stiff panel that is hard to shift away from vulnerable areas.
Box-stitching, on the other hand, is fast and easy and allows the free movement of the vest. To sew the layers together, workers place a stencil on top of the layers and rub chalk on the exposed areas of the panel, making a dotted line on the cloth. A sewer then stitches the layers together, following the pattern made by the chalk. Next, a size label is sewn onto the panel. The shells for the panels are sewn together in the same factory using standard industrial sewing machines and standard sewing practices. The panels are then slipped inside the shells, and the accessories—such as the straps—are sewn on.
The finished bulletproof vest is boxed and shipped to the customer. Bulletproof vests undergo many of the same tests a regular piece of clothing does. The fiber manufacturer tests the fiber and yarn tensile strength, and the fabric weavers test the tensile strength of the resultant cloth. Nonwoven Spectra is also tested for tensile strength by the manufacturer. Vest manufacturers test the panel material (whether Kevlar or Spectra) for strength, and production quality control requires that trained observers inspect the vests after the panels are sewn and the vests completed.
