A packaging envelope bag based on corrugated cardboard - corrugated paper envelope bag

Corrugated Paper Envelope Bag is a packaging envelope made from corrugated cardboard, consisting of a fluted (wavy) inner layer sandwiched between flat linerboards. It combines lightweight design, shock absorption, and cost-effectiveness, widely used for shipping protection, e-commerce logistics, and document mailing, especially for items requiring impact resistance.

Structure & Materials:

• Corrugated Core: Wavy paper layer (common flute types: A/B/C/E) bonded to linerboards, creating a cushioning air gap.

• Linerboards: Typically kraft paper, recycled paper, or high-strength paper, optionally laminated or coated for water resistance.

• Closure: Self-adhesive strips, snap buttons, or stitched seams for secure sealing.

Applications:

• Logistics: Packaging fragile items like electronics, small appliances, or glassware.

• Document Mailing: Pressure-sensitive files (contracts, certificates, samples).

• E-Commerce: Lightweight alternative to boxes for small-item shipping.

• Industrial Use: Temporary protective packaging for machinery parts or instruments.