This custom printed clear window stand-up zipper moisture-proof PET packaging bag uses high-transparency PET as the base, combined with a PE heat-sealing layer to form a dual moisture-proof system. Cold-press sealing technology limits water vapor permeability to below 0.5g/24h, significantly outperforming ordinary plastic packaging. The window area features fog-free PET film for 360° clear product display, contrasting with the matte bag body to enhance premium food packaging aesthetics.
The trapezoidal stand-up bottom structure supports 2kg of contents, maintaining stable display in convenience stores and gourmet supermarkets. The zipper teeth adopt a non-slip design with optimized opening resistance of 1.2N, balancing airtightness and user experience. It supports Pantone color matching, laser engraving, and 3D embossed logos or QR code anti-counterfeiting for brand differentiation. Offering 5 standard bag styles (flat bottom, octagonal seal, side gusset) and 10+ capacity options—from coffee bean sample packs to family-sized portions—the EU AP-certified material is recyclable, with packaging design optimization advice provided to help brands achieve both functionality and sustainability.