polyester needle punched nonwoven fabric Manufacturers

Sew knit polyester cloth before application and waterproof layer, should check the current status of the roof at the grass-roots level to ensure that the roof with no moisture, no freezing, smooth and clean, no loose grain protrusion, even other blocking some impurities, waterproof system of the cohesive force for don't need the waterproof work must carry on the protection of areas, use brush, broom to clean up the surface dust, Or other loose attachment, for the corner, gap joints, water outlet, out of the pipeline need to apply waterproof system, the need for separate treatment work in advance, the use of a layer of basic coating to add appropriate size of stitched polyester cloth to add a layer of basic coating, Next, I will talk to you about the construction process of sewing polyester cloth to help you have a deeper understanding of sewing polyester cloth.

The anti-seepage geomembrane plays an important role in the waterproof work of embankments and upright dams. Since the end of the last century, it has been widely used, especially in the waterproof work of granular formations.

The geomembrane is damaged during transportation and on-site construction, which changes the destruction mechanism of the geomembrane and affects its anti-permeability and stress performance. The composite geomembrane uses hot melt technology to bond the membrane to the cloth. The bilateral geotextile can effectively protect the geomembrane from damage. However, in the process of manufacturing and building connection, hot melt technology will inevitably cause thermal burns and defects of the soil membrane, which has the hidden danger of preventing penetration.

A one-kilometer-long diversion canal with an impermeable geomembrane was built. After tests, the head of the canal drained 1000m3, and only 50m3 was lost at the canal end. 950m3 of water can be directly used for farmland irrigation.

The construction quality control of composite geomembrane includes the quality control of raw materials and the quality control of the construction process.

The composite geomembrane is formed by heating one side or both sides of the film in the far-infrared drying box, and pressing the geotextile and the geomembrane together by means of guide rollers.