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Corrugated Boxes: Structure, Types and Applications

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Structure and Manufacturing: Corrugated boxes consist of inner, outer and middle layers with fluted structure
Boxes can have single, double or triple wall configurations
Flute types range from A (36 flutes/foot) to F (128 flutes/foot)
Production involves heating paper to 338°F and bonding flutes to liners
Types and Features: Slotted boxes come in regular, half, overlap, center and divider designs
Telescope boxes have separate body and cover sections
Rigid boxes consist of end panels and central body
Folder boxes include single piece, five-panel and tray designs
Double cover boxes feature interchangeable telescopic covers
Materials and Properties: Liners made from Kraft, test papers, chip or waste-based materials
Mullen test measures burst strength in pounds
Edge Crush Test evaluates vertical compression resistance
Various coatings available for protection and branding
Over 70% of corrugated materials are recyclable
Applications: Widely used in food, office supplies and e-commerce
Essential for shipping electronics, healthcare and batteries
Popular in automotive and publishing industries
Customizable for branding and environmental protection
Cost-effective and reusable shipping solution