The hottest late spring of China's Nylon industry

2022-09-22
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Chinese nylon industry: late spring

experts at the appraisal meeting investigated the performance and promotion value of Liheng nylon new device

as the world's first synthetic fiber, the development history of nylon is far less vigorous than its invention history. For a long time, caprolactam anti-dumping has objectively had an adverse impact on the supply of raw materials in the domestic nylon industry, but also psychologically eroded the industry's will to innovate and the driving force of technological progress. It is gratifying that the project of "high-performance slicing device and process technology for high-speed spinning of nylon 6 with a single line daily output of 200 tons" passed the appraisal recently, which has not only taken an important step in promoting the upgrading of China's Nylon industrial chain, but also let people see the vitality and explosive power of the nylon industry after a long period of boredom

as the earliest synthetic fiber in the world, the development history of nylon is far less vigorous than its invention history. Only 1. From the perspective of scale, according to the analysis of 2010 data, China's chemical fiber output reached 30.9 million tons, including 25.13 million tons of polyester and 1.618 million tons of nylon

nylon with excellent wear resistance and strength, good moisture absorption and elasticity has not been developed as it should - this is the consensus of industry insiders for a long time. Besides the serious shortage of raw material caprolactam, the bottleneck restricting the development of the industry lies in the lack of large-scale engineering technology and equipment. For a long time, caprolactam anti-dumping has objectively had an adverse impact on the supply of raw materials in the domestic nylon industry, but also psychologically eroded the industry's will to innovate and the driving force of technological progress. It is gratifying that the project of "high-performance slicing device and process technology for high-speed spinning of nylon 6 with a single line daily output of 200 tons" that passed the appraisal in these two days has not only taken an important step in promoting the upgrading of China's Nylon industrial chain, but also let people see the vitality and explosive power of the nylon industry after a long period of boredom

slow development

on October 27th, 1938, under the painstaking research of the research team of karouses, a scientist of DuPont, the world's first synthetic fiber polyamide 66 fiber was born. DuPont named this synthetic fiber nylon. Soon, DuPont built a workshop and officially produced the first batch of nylon products in the intermediate laboratory in 1938. Then in 1941, polyester was industrialized worldwide, and nylon 6 was industrialized in the same year

nylon is the fastest-growing market in the central and southern United States during the Second World War, so it was first used to make parachutes and other military products. After the war, nylon was converted to civilian clothing and hosiery, which was popular all over the world. In the 1960s, the output of nylon once ranked first among synthetic fibers. However, since then, polyester and polyester have come from behind, especially the localization of high-capacity polyester engineering technology and equipment has made the development of domestic polyester and polyester prosperous

with the changes of the world situation and the development of the industry, China has become the world's largest producer of nylon filament and the world's major importer of nylon raw materials. In recent years, China's Nylon output has been growing at a double-digit rate every year. As the raw material of nylon fiber, nylon 6 chips, especially for high-performance and high-quality nylon fiber, Kingstar high tech, which specializes in the production of high-frequency fatigue testing machine nylon 6 chips, have been dependent on imports for a long time. For example, in 2010, the import volume was 805000 tons, amounting to more than US $2 billion. The development pace of domestic nylon chips has seriously lagged behind the development of fibers, which has become the bottleneck of the healthy development of the nylon industry

the domestic nylon industry has experienced a long period of time from a few tons to dozens of tons per day of single track production capacity, which requires a lot of investment costs and a long construction cycle. In the 1990s, the domestic nylon 6 chip polymerization device introduced in a complete set, with low output (15 tons/day), high energy consumption and poor quality, could not meet the requirements of modern nylon enterprises, and was gradually eliminated in the market competition. As of 2009, this kind of method requires maintenance personnel to have considerable knowledge and skills. Although the maximum single line output of domestic existing nylon 6 polymerization plant reaches 75 tons per day, the quality cannot meet the needs of high-performance differentiated nylon filament

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