When customizing tea bags for e-commerce, it is necessary to take into account "high barrier moisture resistance + puncture and tear resistance".  Through the selection of composite materials, structural design and process optimization, transportation losses can be reduced.

1.  Anti-bursting design: To cope with compression and friction during transportation

Material selection: Prioritize the use of composite structures with nylon (PA) layers, such as PA/PE, BOPP/PA/PE.  The nylon layer can provide ultra-high puncture resistance (> 8 N/mm), and the tear strength is 40% higher than that of traditional PE films.

Thickness adaptation: Adjust according to the shape of the tea leaves.  The recommended thickness for loose tea is 60-80μm, and for compressed tea cake packaging, it should be 80-100μm to prevent damage during transportation due to squeezing.

Process enhancement: The bag opening adopts a heat-sealing + reinforcement line design, with the sealing strength reaching ≥ 30N /15mm, reducing the risk of tearing during express delivery sorting.

Ii.  Moisture-proof design: The core to lock in the dryness of tea

Barrier property requirement: Select high moisture barrier composite structures, such as BOPP/VMCPP (moisture permeability 0.3g /m² · 24hr) or PET/AL/CPP (moisture permeability 0.2g /m² · 24hr), to prevent moisture and mold during transportation.

Auxiliary protection: Each bag is equipped with food-grade desiccant (matching 5-10g according to bag capacity), and the outer packaging box is added with a waterproof inner film to double block moisture.

Sealing design: It adopts a dual seal of zipper and heat seal.  The zipper needs to pass 50 opening and closing tests without failure to ensure that it can still be effectively sealed after being opened by consumers.

Iii.  Customized optimization for e-commerce

Printing process: Soy-based ink is selected for printing, with color fastness meeting the standard, avoiding color fading due to friction during transportation, and also conforming to food contact safety standards.

Structural adaptation: Design a three-dimensional bottom or self-standing structure to enhance the stability of packaging stacking and reduce deformation due to compression during transportation.  The corners are designed with rounded corners to reduce the damage rate.