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1. Substrate pretreatment ‌Paper selection‌ A three-layer composite structure is used, the core layer is high-strength kraft paper, and the outer layer is selected according to the needs of 120-200g/...

What are the process flow of paper- plastic composite bags?

2025-03-03
The core principle of woven packaging bags is to form a three-dimensional mesh structure through the plastic processing of polymer materials and warp and weft weaving technology and finally make a pac...

The principle of woven packaging bags.

2025-03-03
1. Material type selection ‌Paper-bottomed bag‌ It adopts a three-layer kraft paper structure, with the outer layer being bleached wood pulp paper (120-200g/m²). It has better air permeability than wo...

How to choose packaging for building materials

2025-03-03