What Raw Materials: The main raw materials of PVC tarp include polyvinyl chloride (PVC) resin, plasticizers, stabilizers, and high-strength fabric. Among them, the upper and lower layers of PVC film are made of PVC resin and endow the coating with waterproof and weather-resistant properties. Plasticizers (such as phthalate or eco-friendly plasticizers) enhance flexibility, stabilizers (such as calcium-zinc stabilizers) are used to improve anti-UV and aging-resistant, while high-strength tarpaulin provides tear-resistant support. The overall structure ensures the wear-resistant, durable and eco-friendly characteristics of the tarpaulin.
In terms of environmental protection, traditional PVC materials have been controversial due to the presence of possible heavy metal stabilizers. Nowadays, with the update and development of technology, the industry is gradually adopting non-toxic and harmless additives and recyclable PVC materials to reduce environmental impact and conform to the current trend of green manufacturing.
Primary Lamination (Semi-finished Product): Base mesh fabric and PVC bottom film are initially bonded through the pre-heating roller to form a semi-finished composite.
Main Lamination (3-Layer Bonding): The semi-finished product then passes through the main heating roller, where the PVC top film is laminated onto the base layer under controlled temperature and pressure, completing the 3-layer structure (top film + mesh + bottom film).
Embossing Process: The laminated material is guided over embossing roller to imprint the customer-specified texture/pattern onto the surface.
Cooling & Setting: The embossed fabric passes through a cooling unit (chilled rollers or air cooling) to stabilize the PVC coating and lock in the texture.
Finishing & Packaging: The final product is automatically wound into rolls at the re-winding station, inspected for quality, and packaged for shipment.
Diverse Applications in Tents
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