nylon

Nylon is commonly referred to as a synthetic polymer compound of polyamide . This is a typical example of a common polymer compound. Wallace Hume Carothers (1896-1937), a professor at Harvard University and scouted in DuPont , was first created in 1935 . Japanese style at the time of the early introduction of Korea It is called ' Nairong ', ' Nairok ' or 'Nail Long', which are pronounced, and are often called this name. Nowadays, it tends to be used mainly for strong and tough products like a backpack .

There is a theory that the name was taken from New York ( New York ) and London ( Lon don), but this is not true and is a new word created through an internal contest.

Nylon is a material that has a similar texture of thermal detection . Structurally, the polymer is connected to several amide bonds.[1] Nylon is the first commercial synthetic polymer, and has become synonymous with synthetic fibers.

The first production was in 1935 , but it was widely distributed during World War II , when it began to be introduced as a military material.[2] First, it was used to replace the silk used in parachutes and body armor . It was so successful that it was used not only for its original purpose of cloth, but also for tires , ropes, and other military equipment.

As an aside, the developer, Wallace Carothers , was not recognized for his usefulness at the time of development, and suffered from depression due to family affairs, and committed suicide by eating cyanide in 1937 without seeing the mass production of nylon . Afterwards, his bereaved family received some recognition for his nylon patent rights and received money. After World War II, when DuPont was celebrating with nylon, his colleagues lamented that it was a 'self-congratulatory party with no one to celebrate'.

The most famous thing for the initial nylon was the stockings of women . When stockings were made in nylon in 1939, this became a sensational popularity. It was a huge success, with 39 million people sold. When the nylon stocking supply is greatly reduced during the Second World War, the process of finding and finding a desperate stocking effort and substitute for women is also a cross -section that shows the times of the United States and Europe.

In modern times , it is also used for screws , gears , and other mechanical parts that do not require great strength . However, the nylon used here is MC (Mono Cast) nylon, which is slightly different from the nylon used in clothing. Mechanical strength is superior to other engineering plastics, wear resistance, and self-lubrication[3] , It has chemical resistance. It is widely used in these parts, clasps, and sheaths along with fiber products such as Kevlar and Zylon . Most tactical knife sheaths are made of this material because wear resistance and self-lubrication are important.[4] However, these seemingly good physical properties are ultimately plastic, so it is inevitable that they will lose strength and become brittle if exposed to ultraviolet rays, a common weakness of polymer composites. Therefore, it is mainly used in areas that are less likely to be exposed to sunlight, such as gears and nuts.

Nylon fibers are divided into "nylon 6,6", nylon 6, nylon 12, and "nylon 6,10", depending on the combination of polymerized atoms. Nylon is the first type of nylon 6 and 6 and is the most common type. Nylon 6 types are mainly used for mechanical parts, and in fact, only 6 types of nylon are not used for mechanical parts, and nylon 6 and 6 are used more than nylon 6 for auto parts, and they are mainly used by adding glass fiber (glass fibers) to nylon. In addition, there are several deformed polyamide fibers, including Nylon 11/12, and even biodegradable nylon (nylon 4) or bulletproof nylon. The main ingredient is nylon.

Nylon has the advantage of being tough and having excellent oil resistance and abrasion resistance. For example, a children's science book published in the late 1980s included an exaggerated explanation for children's understanding, saying, "It is a fiber thinner than spider silk and stronger than steel," which shows the physical properties of nylon. Of course, even nylon fibers can be easily cut with ordinary scissors. In any case, its physical properties are stronger than steel. Taking advantage of this property, it is commonly used as a covering for high-quality wires .

Since it is a synthetic fiber, it is treated as cheap by some people, but it is also an advantage that it is relatively inexpensive compared to natural fibers. And depending on the manufacturing process, the unique gloss comes out quite well.

However, the disadvantage is that it has poor ventilation and is vulnerable to contamination such as oil stains and discoloration. Discoloration may occur not only when exposed to direct sunlight but also when thoroughly rinsed during washing. Washing at temperatures higher than 40 degrees Celsius may cause discoloration, so avoid washing.[5] Therefore, it is best to rinse thoroughly and store in a well-ventilated, shady place. In the first place, it is easily yellowed by nitrogen oxide in the atmosphere, so strictly speaking, it is not a fiber that can prevent fundamental yellowing, so it is better to purchase white nylon assuming that it is inevitable if worn for a long time .[6]

Nylon itself is not waterproof. However, like other fibers, it can be made waterproof when other types of fibers are blended or coated.

In addition, nylon can cause less fire when the fire is on fire, but due to the nature of melting and sticking to the fire, it can cause a major damage to the skin. It was broadcast on the 39th Escape Number One (broadcast on April 29, 2006). So be careful near the fire. This problem is similar to all the clothes made of synthetic fibers, and the opinion that it is not recommended to wear leggings when boarding the aircraft is also the reason for the characteristics of aircraft accidents that are risk of fire in the event of an accident.

Kolon , the name of a corporate group in Korea, is a combination of the first and last letters of 'Korea Nylon' ( KO rea ny LON ), the predecessor of Kolon Industries, the group's parent company .

Many types of nylon emit harmful substances when burned, usually containing hydrogen cyanide (the toxic component of cyanide). It also contains other harmful substances, so don't burn it carelessly.

Nylon was very popular for women's stockings from the beginning , but during World War II, the demand for nylon was enormous for military purposes such as parachutes, so stocking production decreased and supply became difficult.[7] It is said that women who used stockings felt burdened by exposing their bare skin, so they began shaving or removing hair on their legs. Nylon and female hair removal , the history of hair removal . They even went one step further and painted their legs as if they were wearing stockings. Women who painted their legs during World War II . It is said that the same women often recognized that they were paint rather than stockings, but men could hardly tell the difference. In cases where paint wasn't enough, they even painted it with gravy. There's even an episode where a woman like this was told that neighborhood dogs followed her around when she went out.

The lack of nylon stockings continued until the war, and some women who were patient with stocking shortages caused various social problems such as theft of stockings and assaults in front of the store from September 1945 to early 1946 .[8] Consumers pointed out DuPont's shortage of stockings, but DuPont scratched people's inside by blaming others for being the cause of hoarding . Eventually, the problem continued to be a non -national company that monopolized the nylon patent, and in 1951, the antitrust lawsuit crisis, and DuPont, which had a white flag, opened the nylon patent.

English words nylon primarily refers to polyamide synthetic fibers, but also means stockings, a representative nylon clothing. It is an official content listed even in English dictionary, not slang . The stockings are now made by adequately mixing with other synthetic fibers with other synthetic fibers that are not made of nylon.

Meanwhile, as the US and Japanese empire began to friction in earnest, Japan banned exports of fabrics to the United States , but the United States had sufficiently replaced the fabrics as nylon was developed and settled. And from then on, the Japanese Empire will deepen the full -fledged militarism and madness.

There is a conspiracy theory that DuPont, who developed nylon , made cannabis a drug for the purpose of eliminating the natural fiber burlap (hemp fiber) , the only competitor to compete with Nylon.[9]

Nylon has already been used for clothing such as stockings since the 1940s, but it was used in the mainstream fashion world that Prada began to use nylon in 1984. The famous luxury brand is not a rare and luxurious material, but a nylon, but it may feel like it is in shape, but in reality it is very popular because it is practical even with a good design. Details are Prada documentation.

Nylon, meanwhile, was also used for firearms, and Nylon 66 , produced by Remington , introduced Nylon Zietel-101.

There are nylon guitars that use nylon as strings .

It was used as a fabric for comfort clothing from the Korean War to the Vietnam War.
It protected from grenades, mortars, and artillery fragments, but could not block pistol bullets. Then, with the invention of Kevlar, it was retired from the front line.

It is also used as a one-piece dress .