The environmental protection standards for paper-plastic composite bags mainly involve three dimensions: material safety, pollution control in the production process, and product recyclability. Specifically, they include the following key requirements:

1. Material safety and hygiene standards

Residual solvent limit

According to GB8946-2013 "General Technical Requirements for Plastic Woven Bags", the total residual solvent content of paper-plastic composite bags must be ≤5mg/m², and benzene solvents must not be detected.

Food contact safety

Paper-plastic composite bags that come into direct contact with food must comply with GB9683 "Hygiene Standards for Composite Food Packaging Bags" to ensure that the materials are non-toxic and have no risk of chemical migration, and must pass GB/T5009.119-2003 testing for harmful substances such as diaminotoluene.

2. Environmental control of the production process

VOCs emission limits

Volatile organic compounds (VOCs) during the production process must comply with the "Printing Industry Air Pollutant Emission Standard" (GB41616-2022) and the "Synthetic Resin Industry Pollutant Emission Standard" (GB31572-2015), for example, the emission limit of non-methane total hydrocarbons is ≤50mg/m³.

Prohibited Substances List

The use of hazardous substances such as polyvinyl chloride (PVC), azo dyes, and phthalate plasticizers is prohibited, in compliance with HJ2539-2014 "Technical Requirements for Environmental Labeling Products".

3. Product Recyclability and Degradability Requirements

Recycling labels and classification

The recycling mark must be marked according to GB/T16288, and the material composition (such as PP/PE+kraft paper) must be clearly stated to facilitate recycling and separation.

Biodegradable material alternatives

Some environmentally friendly paper-plastic composite bags use degradable plastics (such as PLA) or water-based adhesives and must pass OK Compost or GB/T20197-2006 certification with a biodegradability rate of ≥15%.

IV. International Certification and Special Scenario Requirements

Pharmaceutical industry: must comply with FDA and EU CE certification and pass GMP cleanliness testing.

Dangerous goods packaging: must pass UN certification and provide dangerous goods packaging performance sheet.

Sustainable Forest Management: Using FSC certified kraft paper to ensure that the raw materials come from sustainable forests.

V. Corporate Responsibility and Extended Requirements

Clean production: Enterprises must pass ISO14001 environmental management system certification and implement the "Clean Production Evaluation Index System for the Packaging Industry".

Carbon footprint management: Some companies are required to disclose carbon emissions data throughout their product life cycle to comply with EU REACH regulations.

Summarize

The environmental standards system for paper-plastic composite bags is centered around China's national standards (GB), integrating international regulations such as EU REACH and the FDA to establish comprehensive environmental management and control throughout the entire supply chain, from raw materials to waste. Its core goals are to reduce hazardous substances, enhance recyclability, and minimize production pollution, ultimately achieving a green transformation of packaging materials.