What is An Anti-wicking Tarpaulin?

At present, coated PVC tarpaulin is more and more widely used in the field of application, including leisure field tents, awnings, membrane structure materials, etc., and the market demand is very large. However, with the improvement of people's living standards, the performance requirements for outdoor tarpaulins are also getting higher and higher.

At present, the tarpaulins on the market basically have no anti-wicking function. The tarpaulin is used outdoors and is exposed to the sun and rain. If the base fabric has no anti-wicking function, the rainwater will seep into the tarpaulin along the yarn. One is to affect the appearance of the product, and the other is to affect the service life of the product. Rainwater seeps into the inside of the tarpaulin, which will destroy the joint fastness between the base fabric and PVC, thereby greatly reducing the service life of the product. Therefore, more and more customers have put forward anti-wicking requirements for tarpaulins. However, there are relatively few enterprises capable of producing tarpaulins with high hydrophobicity. The market is currently in a good situation where demand exceeds supply, and the profit margin of products is larger than that of ordinary tarpaulins.

Ⅰ. Coated PVC tarpaulin is made of high-strength polyester as base fabric

Lay polyvinyl chloride (PVC) resin on the surface of the base fabric, add plasticizer (synthetic vegetable ester) and other various processing aids, and plasticize and calender by calendering with four rollers. Coated PVC tarpaulin has waterproof, cold resistance and other properties, and its breaking strength and tear elongation are much better than traditional tarpaulins. It is the mainstream product in the modern tarpaulin market. Coated PVC tarpaulins are mostly used in outdoor environments and are often exposed to the sun and rain. Once it rains, the rain will be in the gaps on the surface of the holes between the fibers of the PVC base fabric, resulting in a "wicking effect", which will destroy the bonding fastness between the base fabric and PVC, which not only destroys the external aesthetics of the tarpaulin, but also greatly reduces the service life of the tarpaulin.

There are two main ways to reduce the wicking effect of the base fabric. One is to increase the hydrophobicity of the surface of the mesh. Most existing manufacturers use this method, and the other is to increase the hydrophobicity of the silk thread. Obviously, it is far more effective to increase the hydrophobicity from the raw material itself than to only increase the hydrophobicity on the surface. For this reason, the chemical fiber departments of many companies have optimized the spinning process on the basis of their own equipment, and have successfully developed anti-wicking polyester yarns with good hydrophobic properties. The anti-wicking tarpaulin is a new type of product that some companies' plastic departments have made on the basis of integrating the successful experience of developing transparent films and anti-wicking materials, after technical transformation and formula adjustment.

Ⅱ. Innovation of coated PVC tarpaulin

  • A new type of oil agent has been developed to enhance the hydrophobicity of the fiber and improve the anti-wicking effect of coated PVC tarpaulin products.

  • Developed a thermal bonding process, which effectively improved the overall stability and peel strength of PVC-coated tarpaulin products.

  • The product industry chain is easy to cooperate with the production, and the cost is low.

The anti-wicking tarpaulin has the advantages of good anti-wicking effect and good transparency, which ensures that the service life of the product will not be affected by the phenomenon of wicking during use. It has great competitiveness in the field of PVC coated tarpaulins and is widely used. It is used in indoor and outdoor ceiling materials, pool materials and other fields.