envelope-greeting card packaging|simple packaging

This is a simple flat product package, sealing end can take glue sealing way.

Simple package design features:
1 Simple structure, forming into a flat.
2 Opening is simple, usually use glue sealing, also can use cellophane tape sealing.
3 Commonly used file express parcel for the many courier companies.
4 Four sided sealing and opening structure, front face with tuck tab. 

The advantages and usages of simple package:
1 Production cost is low, easy to use.
2 Often used as file or knitwear, scarf product packaging.
3 Pile up does not occupy space, convenient for transportation.