Wood grain treatment is a conversion process in which an powder coating is applied to aluminum alloy material, and then a wood grain transfer printing equipment or wood grain rolling brush machine are used to form a wood grain decorative effect on the coated surface. Wood grain aluminum profiles not only have the inherent characteristics of metal, but also reflect the decorative effect of wood grain. Especially in the modern decoration market that emphasizes environmental protection and energy conservation, it has formed a popular trend. Wood grain square tube aluminum profile is an aluminum alloy profile that simulates wood texture, combining the advantages of wood and aluminum, possessing the natural beauty of wood and the durability of aluminum. This material is mainly used for building decoration, such as doors and windows, furniture, flooring, etc. Among them, heat transfer printing of wood grain is the most crucial step. It transfers the wood grain pattern to the sur…