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The function and requirements of the composite layer of the composite packaging bag

The composite packaging bag takes a typical three-layer structure composite flexible packaging material as an example. The function and requirements of the outer substrate (surface layer) are shown in the following tableThe role of the outer substrateRequireeffectMechanical strengthTensile, tear-resistant, impact-resistant, friction-resistantBarrierMoisture proof, gas barrier, fragrance retention, UV protectionstabilityLight resistance, oil resistance, organic resistance, heat resistance, […]

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Composite packaging bag material classification

1. Classification of packaging bag compounding process:At present, composite materials for packaging bags are classified according to processing methods, mainly as follows:①Dry coating organic solvent adhesive compound packaging bag material②Wet coating inorganic adhesive composite packaging bag material③Extrusion film laminated composite packaging bag material④Multilayer co-extrusion composite packaging bag material⑤Hot solvent coating composite packaging bag material⑥Solvent-free composite […]

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The Complete Analysis of Heat Sealing Failure of Composite Packaging Bag

1. The type, thickness and quality of the heat seal material have the most direct influence on the heat seal strength. Common heat sealing materials for composite packaging include CEP, LPPE, CPP, OPP, EVA, hot melt adhesive and other ion-exchange resin coextrusion or blending modified films. The thickness of heat seal material is generally 20-80 […]

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How to produce composite packaging bags

Composite packaging bags are made of a variety of raw materials, such as OPP, PE, composite film and so on. The process is very cumbersome. It goes through: ordering, engraving, printing, compounding, drying, bag cutting, quality inspection, warehousing, and delivery. Composite packaging bag bag shape: side seal, bottom seal, middle seal, three-side seal, eight-side seal, […]

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How to choose a composite packaging bag manufacturer

In daily life, the demand for composite packaging bags is very large. For food factories, the composite packaging bags used come from different businesses, enterprises or factories. For merchants, the composite packaging bag can be directly customized by the manufacturer, and only in this way can reduce the procurement cost to the greatest extent. Many […]

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Customization Unpacked: Essential Knowledge for Composite Packaging Bag

Introduction In the ever-evolving world of packaging, Composite Packaging Bags have emerged as a versatile and efficient solution. For businesses looking to stand out, customization is key. This article provides an overview of essential knowledge for those interested in customized composite packaging bags. What are Composite Packaging Bags? Composite packaging bags are multi-layered solutions that […]