Composite Packaging Bags GB4806 Food Contact Materials Report
Date：2026-05-22 10:06:50 Classification
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Composite Packaging Bags GB4806 Food Contact Material Report
I. Product Scope Definition
Composite packaging bags refer to food packaging bags made of two or more materials (such as plastic, aluminum foil, paper, etc.) bonded together with adhesives. Common types include:
Vacuum bags: Vacuum packaging for meat and aquatic products
Retort pouches: Packaging for cooked foods that can be cooked at high temperatures
Stand-up pouches: Standing packaging for liquids and sauces
Aluminum foil composite bags: Packaging for nuts, tea, and snacks
Three-side seal bags/back seal bags: General packaging for various foods
II. Applicable Standards
Composite packaging bags involve multiple GB 4806 series standards:
| Standard Number | Standard Name | Application Instructions
| GB 4806.7 | Plastic Materials and Articles | Plastic Substrate in Composite Layers
| GB 4806.8 | Paper and Paperboard Materials and Articles | Composite Structures Containing Paper Bases
| GB 4806.9 | Metal Materials and Articles | Packaging Containing Aluminum Foil Structures
| GB 4806.10 | Coatings and Paints | Printing Coatings, Inks
| GB 4806.11 | Rubber Materials and Products | Elastomers such as Sealing Rings
III. Main Test Items
1. Sensory Indicators
Immersion solution color, turbidity, sediment
Odor detection
2. General Migration Test
Total migration (distilled water, 4% acetic acid, 95% ethanol, isooctane simulant)
Special migration test under high temperature conditions
3. Heavy Metals and Specific Substances
Potassium permanganate consumption
Heavy metals (as lead)
Specific monomer residues
4. Additive-Specific Tests
Plasticizers (DBP, BBP, DEHP, etc.)
Total residual solvents and benzene solvents
Specific migrating substances in adhesives
IV. Certification Process
1. Document Preparation — Provide product formula, structural description, and intended food contact type
2. Sample Submission — Determine test conditions (temperature, time, simulant) based on actual application
3. Laboratory Testing — According to GB Testing according to methods 5009.156 and GB 31604 series
4. Report Issuance — Upon passing the test, a CMA/CNAS accredited test report will be obtained (DEZEW Testing CNAS Registration No.: L8083)
5. Compliance Labeling — The words "For Food Contact Use" will be labeled on the packaging or instructions.
V. Precautions
Composite structures require full evaluation: Each layer of material must meet the corresponding standard requirements.
Clear usage conditions: Temperature (refrigeration/room temperature/cooking), contact time, and food type directly affect the selection of test conditions.
Ink migration risk: Ink component migration must be evaluated on the printing surface in contact with food.
Solvent residue: Solvent residues such as ethyl acetate need to be closely monitored in dry lamination processes.
Certification cycle: Typically 5-7 working days.
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