Canvas quality characteristics

Canvas quality characteristics:

A. The dyed and hardened tarpaulin must undergo a lot of washing operations to remove as much as possible the surface active elements such as dispersants, lubricants, detergents and so on of the canvas surface debris to prevent the effective reaction of these promoters. Affect the waterproof performance of the waterproofing agent.

B. In the research of dyeing formula, the integration of waterproof cloth should be fully considered, the hue of the page is easy to change, and the hue of the tarp usually becomes darker; therefore, in the process of color matching by technicians, the hue of the dyed canvas cannot be used as a reference. , Otherwise the canvas color will exceed the standard, which will affect the uniformity of canvas cloth;

For this reason, it is necessary to design the appropriate pigment composition and prepare a series of canvas placement preparations before the production of the product: that is, the laboratory samples, the workshop samples, and the warehouse enlarge samples; at the same time, be careful: the canvas is placed Prior to this, the locomotive must be kept clean and tidy, the tarpaulin equipment, machinery and operating conditions must be routinely operated, and the canvas workshop personnel must be in place to ensure the high quality and efficiency of tarpaulin production from all aspects. In the process of preparing rain-proof cloth, pay attention to the page order of chemical raw materials, namely: tarpaulin→canvas→tarpaulin to prevent precipitation; and pay attention to the use of buckets in chemical tanks, and prohibit metal buckets to prevent PVC rain-proof cloths The stability is affected. Special attention should be paid to that once the rain cloth is configured, it should be used up within 24 hours, otherwise the rain cloth agent will solidify and become unusable, causing loss. The waterproof integration of pure nylon waterproof canvas, whether it is canvas dyed products, as for organic silicon cloth, has a strong dense mesh structure, which has high stability, and the smooth surface of the product just after the factory has certain limitations; therefore, through After analysis and comparison, the organic fluorine waterproofing agent F820 was finally selected. A good collection agent added a layer of strength to the fabric surface.