Category	Specifications & Details
Material Structure	Multi-layer laminate: Typically PET (outer for printability) / Metallized Film (barrier) / PE (inner sealant) . The metallized layer is often aluminum coating (e.g., VMPET) for high barrier properties.
Sealing & Construction	3-side heat seal (≥5mm width) for leak-proof integrity . Tri-seal design ensures strong seams.
Barrier Performance	Moisture Barrier: WVTR (Water Vapor Transmission Rate) is typically low, e.g., <0.5 g/m²/day (ASTM E96) . Oxygen Barrier: OTR (Oxygen Transmission Rate) is also low, e.g., <0.5 cm³/m²/day·atm (ASTM D3985) . UV Protection: Blocks >99% UV light (280–400nm) .
Metallized Coating	Aluminum coating (e.g., vacuum metallized PET or VMPET) provides excellent light and gas barrier . It is more flexible and cost-effective than full aluminum foil .
Printing & Customization	Supports high-definition rotogravure printing . Customizable elements: logos, QR codes, batch dates, product information .
Physical Durability	Puncture & Tear Resistant . Seal strength: Typically ≥25 N/15mm (ASTM F88) .
Dimensions & Capacity	Bag Width: Customizable (common range: 50–200 mm for floss packages) . Load Capacity: Suitable for various quantities of dental floss (e.g., 10–100 units).
Compliance & Safety	Food Safety: Complies with FDA 21 CFR and EU 10/2011 for food contact . Heavy Metals: Typically <0.1ppm (RoHS compliant) .
Production & Logistics	MOQ: 5,000–10,000 pieces (custom designs) . Packaging Format: Rolls of 50–100 bags/pallet. Lead Time: 15–25 days (FOB Shenzhen/Qingdao)

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