Iterative advancements in PVC coating technology, with breakthroughs in surface finishing processes that mimic metal and wood grain.
Jan 19,2026
PVC lamination technology has undergone years of iterative development, evolving from a basic hot-pressing lamination process to a high-precision, multi-functional surface treatment technique. In the early stages, lamination relied on manual adjustment of temperature and pressure, often leading to issues such as bubbles and wrinkles. With the introduction of automated equipment—such as the aluminum-core blade automatic laminating machine developed by Lushang New Materials in Guangrao County—through the use of pressure-adjusting components and a recycling system, both the uniformity and adhesion strength of lamination have been significantly improved, enabling the machine to meet the processing requirements of substrates with varying thicknesses.
In terms of breakthroughs in surface treatment technologies, the imitation-metal and imitation-wood-grain techniques stand out particularly. The imitation-metal process employs modified ASA resin combined with PVC co-extrusion technology, directly incorporating metallic pigments into plastic particles to create a metal-like surface layer that is scratch-resistant and corrosion-resistant. This approach effectively addresses common issues associated with traditional co-extrusion processes, such as bright streaks and brittleness. For example, plastic doors and windows featuring an imitation-metal texture utilize silver-dollar-shaped aluminum powder with a particle size ranging from 20 to 50 μm, combined with high-gelatinous powders and additives, to achieve a balance between metallic luster and surface hardness. The cost of this process is more than 30% lower than that of aluminum-clad plastic processes.
The wood-grain imitation process leverages digital printing technology to break through the limitations of traditional roller-based sampling. Using high-precision print heads, multiple layers of wood-grain pigment are applied sequentially, faithfully reproducing the annual rings and intricate grain patterns of natural wood. For instance, PVC wood-grain films employ an innovative digital process that supports small-batch customization, with color differences between batches controlled within ΔE≤1.5. These films are widely used in integrated door, wall, and cabinet renovations, serving as a cost-effective alternative to high-priced solid wood materials. Such technological breakthroughs enable PVC-coated products to combine environmental friendliness with aesthetic appeal, making them an important choice in the field of architectural decoration.