October 16, 2026 | Industry Notes
One fridge model sells as a base version with flat white panels and as a premium series with embossed texture — a gap of thousands in retail price built on a few dozen in material cost. What the premium buys is "feel", and feel is something a pair of rolls can press into steel. Here is how embossed texture is made, where its value is, and how to choose it.
The flow is short: the steel is galvanized and coated first, then the finished painted coil passes between a pair of emboss rolls whose engraved pattern presses into the film. The decisive step is the roll engraving: depth, density and angle of the grain all live on the roll, and changing the roll changes the pattern. Depth is set by roll gap and pressure, by part — 0.06–0.08 mm for side panels, 0.15 mm for liners. Too shallow and there is no depth to the look; too deep and the grain flattens in forming while the film stress-cracks.
| Grain | Character | Typical application |
|---|---|---|
| Orange peel | Full grain, strongest flaw-hiding | Fridge side and back panels — the volume leader |
| H-pattern | Fine straight grain, refined look | Premium fridge / AC side panels |
| Velvet | Low gloss, soft touch | Doors and decorative panels |
| Granite print | Stone print under clear coat | Chest freezer doors, small-appliance shells |
Color completes the texture: whites expose gloss variation most, dark tones expose depth consistency most. Send a physical sample — we match the roll against it and strike off a sample panel.
One is volume: an exclusive roll face carries engraving and changeover cost, and a custom pattern needs enough tonnes to pay for itself — the standard grains (orange peel, H, velvet) are on the shelf. Two is thickness: embossing is plastic deformation of the metal, and thick substrate resists it — appliance emboss substrate normally stays under 0.6 mm, finished panels from 0.3 mm. Send the idea first; we propose from existing rolls and quote within 24 hours.
