Non-barrier co-extruded black and white film

Non-barrier co-extruded black and white film is a polyethylene (PE) film formed by combining a light-shielding layer and a light-shielding layer through a co-extrusion process. It is mainly used in basic light-shielding, moisture-proof and low-cost packaging scenarios. It achieves a visual effect of white on the outside and black on the inside through a multi-layer structure design. The outer white layer reflects light and reduces heat absorption, while the inner black layer completely avoids light. It is suitable for fields that do not require high oxygen/humidity blocking performance but have core requirements for light blocking.