Core characteristics and industry application analysis of paper plastic bags
1、 Definition and Material Structure
Paper plastic bag (paper plastic composite bag) is a composite packaging container that combines paper and plastic woven materials. It is usually made by laminating multiple layers of kraft paper and polypropylene (PP) woven cloth, and combines the printability of paper with the waterproof and tear resistance of plastic. Common styles include square bottom valve pockets, flat bottomed large open pockets, etc., suitable for mechanized filling and sealing needs.
2、 Functional characteristics
Durability: The surface woven fabric is made of thickened PP material (≥ 150g/m 2), and the inner layer is made of composite waterproof kraft paper, which is resistant to aging and UV rays and suitable for long-term outdoor storage.
Moisture proof and Leak proof: Sealed through heat sealing or sewing processes, it can effectively block moisture and dust, and is suitable for materials such as chemical powders, building materials, and cement that are prone to moisture.
Load bearing capacity: Optimized structural design supports static load-bearing of 1-2 tons, and can withstand high-frequency forklift handling in dynamic transportation environments