BOPP Film Anti-blocking Silica

Product Specification

Feature

Efficient anti‑blocking performance : Specially designed precipitated silica for BOPP films, forms micro‑protrusions on film surface, reduces contact area between film layers, effectively eliminates blocking issue during winding, storage and high‑temperature aging. Excellent transparency & low haze : Optimized particle size and pore structure, minimizes haze increase; preserves high clarity and gloss of BOPP film, meets requirements for high‑transparent packaging films. Good slip property coordination : Works well with slip agents, delivers balanced anti‑blocking and slipping effect; avoids excessive friction or film surface defects during high‑speed film production and converting process. Superior dispersibility in polypropylene matrix : Low agglomeration silica powder, easy to disperse evenly inside PP resin during masterbatch extrusion. No large particles, fish‑eyes or surface spots on finished BOPP film. High thermal stability : Resists high temperature during extrusion and film stretching process, no decomposition, discoloration or volatile substances; adapts to BOPP high‑speed biaxial stretching production conditions. Controlled particle size distribution : Narrow particle distribution, prevents over‑large particles from causing film rupture or pinholes; ensures stable film mechanical properties. High purity with low impurities : Strictly controlled coarse particles, heavy metals and volatile content; no negative impact on printing, metallizing and laminating post‑processing performance of BOPP film. Wide applicability : Suitable for food‑grade packaging BOPP, printing‑grade BOPP, metallized BOPP, cigarette packaging film and other biaxially oriented polypropylene film types. Consistent batch‑to‑batch performance : Stable oil absorption, particle size and moisture indicators; guarantees stable masterbatch quality and uniform film performance in continuous mass production. Complete supporting documents : COA, MSDS, food contact compliance certificates and technical application guidelines are provided; supports masterbatch manufacturers for formula tuning and scale‑up production.