play a key role On June 19, the 900,000 disaster relief tents urgently purchased by the Ministry of Civil Affairs of the People's Republic of China had completed their production tasks, one day earlier than the original schedule. Textile enterprises producing tents are concentrated in Zhejiang, Jiangsu, Hubei, Tianjin, Beijing, Henan, Shaanxi and other provinces and cities. The production of tents is time-critical and the number is huge, which is unprecedented in the history of disaster relief in China. The tent production enterprises that are responsible for the production of tents have drove full horsepower, worked overtime and overtime, and are competing for every second. They gave up all holidays and completed the production tasks on schedule, quality and quantity. Li Guimei, deputy secretary-general of the China Industrial Industry Association, told reporters that tents are special materials for emergency rescue and disaster relief. China's usual reserves are around 180,000. During the earthquake relief, the disaster area urgently needed nearly 900,000 tents to resettle the affected people. The Ministry of Civil Affairs has arranged a total of 75 enterprises to produce tents that are badly needed in the disaster areas. This time, the production of tents for the disaster-stricken areas caused a shortage of tent fabrics due to the urgent task and heavy consumption. The China Industry Association recommends that production companies use light box cloth as an alternative to tent cloth. The industry is small but indispensable The main part of the tent is its fabric, which belongs to the tent canvas category. China is a big country producing tents, mainly for export. According to statistics from relevant departments, China produced a total of 1,083,000 tons of tarpaulin in 2007, a year-on-year increase of 27.11%. Among them, the output of tarpaulins for cars and tents was 342,000 tons. Tents can be divided into tourist tents, disaster relief tents, advertising tents, car tents, military tents and so on. The tent fabrics are mostly polyester taffeta, nylon rain cloth, PVC waterproof Oxford cloth and membrane materials. Generally, polyester industrial yarn or polyester staple fiber is used as the raw material, and after weaving into a fabric, it is finished according to different requirements. Such as PVC or polyurethane coating, silicone impregnation and finishing, sunshade requires UV-resistant finishing, etc. Generally, it is a double-layer design, and the inner layer is compounded with a coating material, and a PU sticker is added. The tents currently produced generally have good functions of resistance to stretching, rain, and ultraviolet rays.