Cross border e-commerce express bags are plastic or paper bags used for packaging and transporting cross-border e-commerce goods, and their quality requirements mainly include the following aspects:

1. 耐破裂性：快遞袋應具備足夠的抗撕裂和抗破裂性能，能夠承受運輸過程中的擠壓、摩擦和外力沖擊，避免袋子破裂導致商品丟失或損壞。

1. Burst resistance: The express delivery bag should have sufficient tear and burst resistance, and be able to withstand compression, friction, and external impact during transportation, to avoid bag breakage causing loss or damage to the goods.

2. 強度和承載能力：快遞袋應具備足夠的強度和承載能力，能夠承受包裹商品的重量，防止袋子在運輸過程中破裂或損壞。

2. Strength and load-bearing capacity: The courier bag should have sufficient strength and load-bearing capacity to withstand the weight of the packaged goods and prevent the bag from cracking or damage during transportation.

3. 密封性：快遞袋應具備良好的密封性能，能夠有效防止包裹商品在運輸過程中受潮、進水或外部灰塵的侵入。

3. Sealing: The courier bag should have good sealing performance, which can effectively prevent the packaged goods from being affected by moisture, water, or external dust intrusion during transportation.

4. 透明度：快遞袋的透明度要求適當，能夠清晰顯示袋內的商品信息和標簽，方便快遞企業和海關對包裹的檢查和識別。

4. Transparency: The transparency requirement for express delivery bags is appropriate, which can clearly display the product information and labels inside the bag, making it convenient for express delivery companies and customs to inspect and identify the package.

5. 環保性：快遞袋應符合環境保護要求，盡量選擇可循環利用、可降解或可回收的材料制成的袋子，減少對環境的影響。

5. Environmental friendliness: Express bags should meet environmental protection requirements, and bags made of recyclable, biodegradable, or recyclable materials should be chosen as much as possible to reduce their impact on the environment.

6. 印刷質量：如果快遞袋需要印刷商品信息、條形碼等內容，印刷質量應清晰、耐磨、不易褪色，以便于識別和跟蹤。

6. Printing quality: If the express delivery bag needs to print product information, barcodes, and other content, the printing quality should be clear, wear-resistant, and not easy to fade, for easy identification and tracking.

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