Embossed Decorative Film with Gloss Differential for Texture Visibility

The patent applies local quality by creating a surface with non-uniform gloss distribution. The key innovation is the gloss differential between the valleys (lower gloss) and peaks (higher gloss) of the embossed pattern. This local variation in gloss properties allows the texture to be visible while maintaining overall low glare, as the human eye perceives the contrast between glossy and matte areas rather than the absolute gloss level.

The patent transitions from controlling only the glossiness parameter to controlling the spatial distribution of gloss across the surface. By introducing the dimension of spatial variation in gloss properties through embossing, the solution simultaneously achieves low overall glare (through low average gloss) and high texture visibility (through local gloss contrast).

The patent makes the embossed texture visible by creating local gloss differences across the surface. The valleys of the embossed pattern have lower gloss while the peaks have higher gloss, creating visual contrast that makes the texture recognizable. This local quality variation transforms the embossed surface from a uniformly matte appearance to one with discernible texture patterns.

The patent applies the principle of optical property changes (analogous to color changes) by utilizing gloss as the varying property. The differential reflection characteristics between glossy peaks and matte valleys create visual contrast, similar to how color differences create visual contrast. This allows the embossed texture to be clearly perceived through optical property variation rather than relying solely on geometric shape.

The patent resolves this contradiction by creating local gloss variations through embossing while maintaining a relatively smooth base surface for printing. The printing is performed on the smooth valleys of the embossed pattern, ensuring good print quality, while the embossed peaks create local gloss differences that reduce overall glare. This local quality approach allows both smooth printing surfaces and glare reduction to coexist.

The patent applies preliminary action by forming the embossed pattern on the substrate before applying the print layer. This sequence ensures that the printing surface (the valleys) is already prepared with the appropriate topography and gloss characteristics, allowing high-quality printing to be achieved on a pre-formed smooth surface that also contributes to glare reduction through the overall embossed structure.