Aluminium Foil 6.5 μm for Lamination to Paper and Direct Food Contact

The production of Aluminium Foil 6.5 μm begins with the selection of high-purity food-grade aluminum ingots, which are melted and rolled into aluminum coils several millimeters thick. These coils are then repeatedly rolled thin using a cold rolling mill until they approach Aluminium Foil 6.5 μm for food-contact; At this stage the error must be controlled to within 0.2µm to be considered acceptable. Rolled aluminum foil is hard and brittle, its flexibility is soft and requires an annealing furnace to restore. Next, the surface is cleaned of rolling oil with a food-grade cleaning agent, and then high-temperature drying to ensure it is clean and residue-free. It is then cut into neat, barless small rolls according to lamination requirements. Finally safety indicators such as thickness, uniformity, and heavy metal content are checked; Only those that pass the test can be used for paper lamination.

These certificates are its "safety passes," especially for export; None of them can disappear. There are three main types of credentials to focus on. The first type is the Food Contact Safety Certificate, the most basic "entry-level certificate." Both Aluminium Foil 6.5 μm and the finished composite must meet the relevant food contact standards: aluminum foil for domestic sale or use must comply with National Standard GB 4806.7-2016, and composite packaging as a whole must comply with GB 4806.8-2016. These two standards regulate aluminum and paper products for food contact, respectively, clearly specifying leaching limits for heavy metals like lead, cadmium, and mercury, as well as indicators like evaporation residues and formaldehyde migration, to ensure no harmful substances are released and food They contaminate. Target market standards for export must be met: aluminum foil must be FDA certified for the United States, and overall composite packaging must meet FDA requirements for food contact products; For the EU it must comply with (EC) No 1935/2004, and both aluminum foil and paper must pass REACH testing to ensure that harmful substances do not cross EU borders; For Japan, aluminum foil must meet the JIS Z 1650 standard, and composite packaging must meet the JIS Z 0603 standard. Japan has very strict hygiene requirements for food contact products, with more detailed testing. The second type is a quality management system certification, typically ISO 9001 . This certification indicates that the manufacturer has strict control processes at every step, from purchasing and producing aluminum foil raw materials to paper lamination and finished packaging, thus stabilizing product quality. You won’t find the composite packaging you buy this time sticky and stiff, but it is prone to delamination and softening the next time you buy it. There is also HACCP food safety management system certification, especially for food-related products. It focuses on controlling food safety risks during the manufacturing and lamination processes, such as preventing contamination of aluminum foil and paper by dust and oil during processing, and avoiding harmful residues of adhesives used for lamination. The third type is a third-party testing report, essentially a "health check" of a product. Reliable manufacturers actively seek testing from authoritative third-party organizations such as SGS, BV, and Intertek. The report also includes information on physical, chemical and hygiene properties of aluminum foil as well as laminated packaging peel strength (ensuring aluminum foil and paper separate easily), temperature resistance, and oil resistance. Whether delivered to domestic food factories or exported overseas, this report provides greater credibility and reassurance to consumers.

Aluminium Foil 6.5 micron and paper composite products must leverage the advantages of both aluminum foil and paper by adapting to different food packaging situations and export requirements. It comes in two main categories: finished packaging of composite rolls and packaging of end products made from composite rolls. First, let’s discuss the complete packaging of composite rolls. Although the composite roll is stronger than Aluminium Foil 6.5 μm alone, protection is needed. The most common combination is "paper core + moisture-proof film + corrugated cardboard box": the composite roll is rolled in a paper core, wrapped with a dense moisture-proof plastic film to prevent moisture and dust accumulation during transport and storage; It is then placed in a customized corrugated cardboard box, with cardboard or foam reinforcement inside to prevent collision and deformation during transport, as well as damage to the composite layer. For exported composite rolls, the cardboard box is treated for moisture and puncture resistance, and printed in English with product information, specifications, certification marks, as well as shipping labels such as "Handle with Care," "Keep Dry," and "Recyclable," meeting international shipping requirements. Let's talk about food packaging made from it. Packaging methods vary according to the needs of different foods: when packaging bread and pastries, the composite roll material is made in paper bags or boxes, with the aluminum foil side facing the food to keep it ungreased and fresh. The paper side faces outwards, allowing beautiful brand designs and product information to be printed, making it convenient to carry and display. When packaging cooked foods and braised dishes, the composite roll material is made in sealed bags or lunch boxes. The aluminum foil layer separates air and prevents oxidation, while the paper layer increases rigidity, prevents handling burns, and allows for direct microwave heating (note the need to choose a microwave-safe adhesive). The composite roll material is used as a gift box liner or small packaging bag when packaging tea and coffee. The aluminum foil layer increases shelf life by isolating light and oxygen, while the paper layer enhances the texture and environmental friendliness of the packaging. 6.5 Micron Aluminium Foil for food-contact materials are made into stand-up pouches or zipper bags when packaging snacks (such as biscuits and nuts). The aluminum foil layer traps and prevents moisture, the paper layer provides good printing results, and the zipper design allows consumers to reuse the pouches again and again. Various overseas markets have specific requirements for end product packaging. The EU market, for example, requires packaging to be recyclable, so biodegradable paper and environmentally friendly adhesives are chosen. The U.S. market has strict requirements for nutrition labels and ingredient descriptions on packaging, and printed products must comply with FDA regulations. Markets in Japan and Korea emphasize sophistication of packaging and use composite roll materials to create small gift boxes or individual packages to enhance product quality.

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