Flat or square bags have the following characteristics:

1) there are five printing layouts, plus, back, left and right sides and bottom. With the traditional vertical bag, self-reliance bag or at the bottom of the stand up bag not the same, different place is flat bag department is very smooth and with no heat sealing side, the text or pattern to show flat out; To allow the product manufacturer or designer to have sufficient space to play and describe the product.:

2) composite of flexible packaging materials, can through permeable through oxygen barrier property of different materials, combined with play different blocking material, and plastic packaging than ordinary paper bag can more protection products.:

3) flat bag/square bag, standing on the goods, square and flat, standing stable, can be omitted plus packaging materials.:

4) in order to satisfy the customer's friendliness, the flat bag/square bag can be attached with the zipper and zipper, etc.