1. Durability: Packaging materials should be strong and resistant to damage during transportation and handling. 2. Flexibility: Packaging materials should be able to conform to different shapes and sizes of products. 3. Lightweight: Packaging materials should be lightweight to minimize shipping costs and reduce environmental impact. 4. Moisture resistance: Packaging materials should protect products from moisture and humidity. 5. Temperature resistance: Packaging materials should be able to withstand extreme temperatures without degrading or affecting the product. 6. Transparency: Packaging materials should allow visibility of the product inside, especially for retail packaging. 7. Barrier properties: Packaging materials should provide a barrier against oxygen, light, and other external factors that can degrade the product. 8. Recyclability: Packaging materials should be recyclable or made from recycled materials to promote sustainability. 9. Printability: Packaging materials should have the ability to be printed on for branding, product information, and marketing purposes. 10. Safety: Packaging materials should be non-toxic and safe for both the product and the consumer. 11. Cost-effectiveness: Packaging materials should be affordable and cost-effective for manufacturers and retailers. 12. Shelf life extension: Packaging materials should help extend the shelf life of the product by providing protection against spoilage and deterioration. 13. Ease of use: Packaging materials should be easy to handle, open, and close for both manufacturers and consumers. 14. Customizability: Packaging materials should be customizable to meet specific product requirements and branding needs. 15. Eco-friendliness: Packaging materials should be environmentally friendly, biodegradable, or compostable to reduce waste and pollution.