Definition:
From a design perspective, a tray-style folding carton is a folding carton where the lid sits on the largest surface of the box, featuring a relatively low profile. Structurally, it is formed by folding a single sheet of cardboard around the box base, with the surrounding cardboard folded at right angles or oblique angles to create the main box shape. The corners are sealed through interlocking or adhesive bonding, while the base undergoes minimal structural changes-the primary structural modifications occur at the box body.
Forming Methods:
Primarily includes assembly forming, interlocking forming, adhesive bonding forming, and combined forming. Assembly forming may be supplemented with interlocking or bonding; interlocking forming varies by interlock position, such as side panel-end panel interlocking, end panel-side panel interlocking, or flap interlocking; adhesive bonding forming includes web corner bonding and flap bonding; combined forming integrates multiple methods.
Lid Structures:
Varieties include clamshell, swing-top, snap-on, push-to-seal, and drawer-style lids. Clamshell designs feature separate disc-shaped box bodies and lids, with the lid slightly larger than the body-commonly used for apparel and footwear packaging. Drawer-style lids are tubular while box bodies are disc-shaped, each formed independently.
Features and Applications:
Disc-shaped folding cartons offer a large base load surface and extensive visibility of contents upon opening, facilitating consumer selection and purchase. They are primarily suited for packaging footwear, apparel, food, and gift items.
