Attribute	Description
Material Structure	Outer Layer: BOPET film (12-125μm) with high tensile strength and UV resistance 1 . Middle Layer: Aluminum foil (7-9μm) for oxygen/moisture barrier 3 . Inner Layer: CPP heat-sealable layer for airtight closure 3 .
Interchangeable Sleeves	Removable outer sleeves with seasonal themes (spring/summer/autumn/winter), secured via slot-and-tab system 5 . Compatible with QR code integration for dynamic marketing 1 .
Barrier Performance	- OTR: ≤3 cm³/m²·24h - WVTR: ≤1.5 g/m²·24h - UV light blocking: 100% via aluminum layer 3 .
Customization	Pantone-matched sleeve printing (CMYK+2 spot colors), holographic foiling, and embossed logos 1 3 .
Sustainability	Recyclable BOPET/CPP materials; sleeves use FSC-certified paperboard for eco-friendly replacement 5 .

Parameter	Details	Standards
Bag Dimensions	250g: 180x250mm 500g: 220x300mm 1kg: 280x400mm (flat-bottom gusseted design) 3 5	Customizable
Sleeve Compatibility	Universal sleeve size: ±2mm tolerance for seamless fitting across all seasonal designs 5 .	ISO 2768-1
Seal Strength	≥4.5 N/15mm (CPP layer); heat-sealing temperature range: 120-150°C 3 .	ASTM F2029
Printing Resolution	1440 dpi with scratch-resistant inks; supports variable data printing for batch-specific QR codes 1 .
Reusability	Sleeves withstand ≥10 replacement cycles without tearing; inner bag resealable zipper (5,000+ cycles) 5 .
Certifications	FDA, EU REACH, and BRCGS packaging standards for global export compliance 3 5 .