Material and structure
Double-sided pure black core layer: the whole body is made of dyed
black pulp, the color of the front and back sides is uniform and
deep, without white exposure.
High-weight substrate: the thickness is usually 250-400g/m², with
high stiffness, good toughness and strong tear resistance.
Surface treatment: matte and glossy. The matte surface is delicate
and soft; the glossy surface is coated and polished to present a
mirror effect.
Physical properties
Strong stability: excellent folding resistance, not easy to break
after repeated bending; low expansion rate, not easy to deform
under temperature and humidity changes.
Printing adaptability: high surface smoothness, compatible with
offset printing, hot stamping, UV printing and other processes,
accurate color reproduction.
