Presswork is a kind of coated product with pattern or texture, feel and apparent party level.
According to the different production processes, embossing boards can be divided into hot embossing boards and cold embossing boards. The production principle of hot embossing is that after the steel strip is coated with a plastic sol, it needs to be heated at a specific temperature in the solidifying furnace, also known as activation. After being out of the furnace, before completely cooling, embossing rolls with convex and concave patterns on the surface will be used. The coating plate rolls out the pattern, and then cools to normal temperature immediately after rolling, which forms a layer of concave-convex pattern on the surface of the steel strip. The convex-back deformation of the embossing only occurs in the organic coating, and the main types of patterns are leather, wood or reticulation. Polyvinyl chloride (PVC) plastic sol film is often used for hot embossing, and the thickness of organic film is generally between 100 and 250 um in production.
Cold embossing is to use embossing roll to roll coating plate to make the coating concave and convex along with the substrate. This process is usually carried out at room temperature. The production of cold-embossed veneer requires the use of coatings with good processability, such as polyester coatings, whose production cost is lower than that of hot-embossed veneer.
The embossed board has beautiful appearance, high surface hardness and strong corrosion resistance. As the surface area of the embossed substrate increases, it is conducive to the transmission of sound and heat.