Technical Specifications 6 of 7
Material Properties
PNG has no physical material properties. It has no weight, thickness, hardness, flexibility, temperature limit, coating, texture, chemical resistance, or durability because it is a digital image format.
Material properties belong to the blank or stock selected for production. The same PNG may produce different results across materials because surface color, composition, coating, texture, absorbency, reflectivity, and heat response affect the process.
Digital information versus material information
| PNG can describe | PNG does not describe |
|---|---|
| Pixel color samples | Material color or actual printed color |
| Transparency information | Whether a substrate is transparent or opaque |
| Pixel dimensions | Product dimensions or printable area |
| Optional color metadata | Coating, ink, transfer, or adhesion compatibility |
| Optional physical pixel intent | Heat, pressure, laser, or chemical tolerance |
Compatibility must therefore be validated as PNG artwork plus production method plus machine plus material plus product.