Tarpaulins are usually made by combining fabric with a waterproof coating or membrane. Here is how tarpaulins are made:
Choosing a base fabric material: Tarpaulins are usually made of materials such as cotton, polyester, or nylon. These materials are not inherently waterproof, so they need to be specially treated.
Coating treatment:
PVC coating: A common waterproof coating method is to coat the surface of the base fabric with polyvinyl chloride (PVC) to form a strong waterproof membrane. This coating is wear-resistant, durable, and can effectively repel water.
PU coating: Polyurethane (PU) coating is thinner and lighter than PVC and is often used for tarpaulins that need to remain breathable. PU coating is often used in outdoor sportswear, tents, etc.
Silicone coating: Another common coating is silicone, which can provide very good waterproofing while maintaining the softness and durability of the fabric.
Lamination process: Some tarpaulins are made by laminating a waterproof membrane directly to the base fabric. This membrane is usually a thin, transparent material, such as polyethylene or TPU film, which can provide excellent waterproof performance.
Heat pressing: After the coating or membrane is laminated, the fabric is usually heat pressed to ensure that the waterproof coating or membrane is firmly attached to the fabric surface.
Surface treatment: The surface of the waterproof fabric may be treated with additional treatments, such as a layer of UV protectant or antibacterial coating, to improve its protective performance.
Waterproof fabrics are waterproof, wear-resistant and durable, and are widely used in outdoor equipment, raincoats, tents, awnings and other products.
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