Introduction to Color Branded Paper

Color Branded Paper (also known as hot-coated paper) is a special type of artistic paper made by blending bleached chemical wood pulp and SWP pulp. It features rich colors and a smooth, firm texture. Its core feature is that the SWP fibers melt after hot stamping, causing the color to darken. When heated by a hot stamping machine, the paper surface will present concave or convex dark patterns, creating a three-dimensional printing effect. This process can produce a wood-engraving fire-imprint texture without ink and is mainly applied in high-end gift box packaging, wine box packaging, bestseller covers and decorative paintings

The production of color-coated paper requires the control of the amount of SWP pulp used, and the drying temperature should not exceed 115℃ to preserve the heat-coated performance. Hot-dip plates are usually made of engraved zinc plates (which are less costly) or copper plates (which are more durable). The covers of books such as "Collected Anecdotes of the Qing Dynasty" use this type of paper to achieve pattern color changes through the hot-dip process, endowing the works with a unique texture. As a polyolefin chemical fiber, the low melting point characteristic of SWP pulp is the core material support for the heat-changing function of color-coated paper