https://www.cnbagsfactory.com/product/summer-gift-bag/ The surface of white cardboard has good flatness, smooth and uniform surface, And is not prone to fuzzing, blistering, or rough surface, Which can ensure the accuracy and precision of printing. The color purity of the paper surface is high, The fiber structure is excellent, And it has relatively uniform ink absorption and good folding resistance. Therefore, It compared with other paper bags, The quality of white cardboard bags is more stable, And they are not easily affected by external interference, deformation, or yellowing. It can maintain the quality and appearance of printed materials for long-term storage and use.