How to achieve a comeback of square bottom paper bag machine in the fourth quarter?

Entering the fourth quarter of 2025, although the market is facing a complex inspection environment, with the deepening implementation of plastic restriction regulations nationwide, the use of non degradable plastic bags is strictly restricted. Multiple provinces and cities have successively introduced stricter plastic product ban schedules, forcing traditional plastic bag production enterprises to transform or add paper bag production lines, directly driving the strong demand for bottom paper bag production equipment. The square bottom paper bag machines in the packaging market have indeed experienced a counter trend upward trend.

The Rongjian Fangdi paper bag machine uses environmentally friendly roll paper bags such as kraft paper, yellow paper, food coated paper, medical paper, etc. The paper rolls undergo processes such as piercing holes, edge gluing, color coding to determine length (or fixed length), raw material forming into tubes, fixed length pulling, folding the bottom, bottom gluing, forming, etc. The finished paper bags are sorted and fully automated in one go. The models include: square bottom 190, 330, 450, 450b, 550, etc. The paper bag width is 220-550mm, the bag bottom width is 90-180mm, the paper thickness is 60-160g/m, and the maximum diameter of the paper roll can reach 1200mm.