Product Description
Anti-block additives for film applications, functional additives that prevent film layers from sticking together during processing, storage, and use. Film blocking occurs when smooth polymer surfaces come into intimate contact and adhere through molecular interaction, making separation difficult and potentially damaging film surfaces. These anti-block additives incorporate finely divided mineral particles that create microscopic surface roughness, reducing the contact area between film layers and preventing adhesion. West African film producers rely on anti-block technology to ensure their products can be easily unwound, separated, and processed on converting and packaging equipment. The additives are particularly important for polyethylene and polypropylene films used in packaging applications where multiple film layers contact each other during winding, storage, and use. Proper anti-block selection balances blocking prevention with other requirements including clarity, where excessive anti-block can cause haze, and printability, where some anti-block types may affect ink adhesion.
Application
Additives and fillers for plastics processing