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Application of polyester nonwoven fabric in geotextile
Jan 09, 2018

The application of geo materials abroad has begun in 60s, and the United States has also become the country with the largest consumption. At the beginning of 90s, the amount of its annual consumption was over 300 million m2, and the dosage was 700 million m2 in recent years. Geotextiles in Europe and Japan have also developed rapidly, and the annual consumption of Geotextiles in Europe is also around 400 million m2.

The geotechnical materials in China started in the early 80s, but the amount of the materials at that time was very small, only the experimental application. Until 1998, the great flood caused the government's attention. The construction department put the application of Geotextiles in the design specification, and formulated the relevant national standards. The geotextiles really got attention and development.

At present, the amount of the land industry cloth has exceeded 300 million m2, and the non-woven geotextiles account for about 40% of the total. The construction of civil engineering in China has a huge potential market, and its potential is no less than 7~8 billion m2 in the United States. It is estimated by experts that we will still grow in double digits in the next 15 years, of which PET spunbonded geotextiles are growing faster.

During the period of "fifteen" and "11th Five-Year plan", China's investment in water conservancy, electricity, transportation, environmental protection and river governance is huge, including water conservancy construction, South to North Water Diversion Project and power investment project. At present, our country has about 9 PET polyester non-woven production lines, the total production capacity of about 31 thousand t/a, of which Yizheng nonwoven fabric factory, Hunan nonwoven factory, Henan Sanli company, Shanghai customerway company, Jiangxi Bridge Company for the introduction of Italy or the west line, Shaoxing Lida, Xinjiang Tianli, Xichuan cloth, Dalian Hengda Zhejiang, WIKO and other domestic non-woven factory production line, the minimum width 2.4m, maximum width 6m. The maximum production capacity of these lines is 4500 t/a, and the minimum production capacity is 1000 t/a. At present, the main products of these production lines include geotextiles, engineering impervious materials, building waterproof materials, composite reinforced materials, automotive fabrics, cushioning materials, shoes chemical tablets, etc.

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