Enter2025In the fourth quarter of 2025, despite the complex inspection environment faced by the market,With the deep - implementation of the plastic restriction order nationwide, the use of non - degradable plastic bags is strictly restricted. Many provinces and cities have successively issued more stringent schedules for banning plastic products, forcing traditional plastic bag production enterprises to transform or add paper bag production lines, which directly drives the strong demand for square - bottom paper bag production equipment.The square - bottom paper bag machines in the packaging market have indeed witnessed a reverse upward trend.

Rongjian TechnologySquare - bottom paper bag machine, which uses environmentally friendly rolled paper bags such as kraft paper, yellow paper, food laminated paper, medical paper and other paper rolls. Through processes such as perforation, gluing the paper edge, color - mark length determination (or fixed length), forming the raw material into a tube, length - determined pulling and breaking, bottom folding, bottom gluing, forming, etc., the finishing of the finished paper bags is completed automatically at one time.ModelThere are:Square - bottom190,330,450,450b,550etc. The width of the paper bag is220 - 550mm, the width of the bag bottom is90 - 180mm, the paper thickness is60 - 160g/m, and the maximum diameter of the paper roll can reach1200mm.