What Machines Are Used To Make Paper Bags?2025 New

The production modes of paper bags are mainly divided into manual production and machine production. There are significant differences in the equipment matching and production processes required under the two modes, and a comprehensive selection must be made based on the production scale, specific product types and cost budget.

1. What equipment is needed for handmade production?

The manual production process primarily involves a "printing machine + slitting machine + manual folding" workflow, with the specific equipment combination adjusted based on the selected printing process. If a flexographic printing machine is used to print paper, the process must follow the logic of "printing first, then slitting": first, the pattern is printed on a whole roll or large-format paper using a flexographic printing machine. The advantage of a flexographic printing machine is that it can adapt to a variety of paper materials and has a fast printing speed, making it suitable for batch printing of simple patterns; after printing, a slitting machine is required to cut the large-format paper into single pieces that meet the unfolded size of the paper bag. The slitting machine can ensure cutting accuracy and reduce paper waste by adjusting parameters. After the paper is cut, it must be die-cut by machine.Finally, manual assembly operations such as folding the side, sealing the bottom, and stringing the paper bag are completed.

If you choose an offset printing press, the process needs to be adjusted to "slitting before printing": Since offset printing presses are more suitable for fine printing on single sheets of paper, capable of presenting more delicate color gradations and complex patterns, you must first use a slitting machine to cut the original paper into a standard size suitable for the offset printing press, and then feed the slit single sheets into the offset printing press to complete the printing;After the paper is cut, it must be die-cut by machine. the paper also needs to rely on manual folding, gluing and other processes to finally be made into paper bags. However, the limitations of the manual assisted mode are quite obvious. Manual assembly efficiency is low, and the consistency of the finished product is easily affected by manual operation. It is more suitable for production scenarios with small batches and personalized needs, and it is difficult to quickly meet the delivery needs of large-scale orders.

2.What Equipment is Required for Machine Production?

Machine production is categorized into two core equipment types: roll-fed paper bag machines and sheet-fed paper bag machines, depending on the paper form and product positioning. The core advantage of roll-fed paper bag machines lies in their integrated production process. They can directly use roll paper as raw material, eliminating the need for pre-cutting the paper into individual sheets, significantly simplifying the pre-production process. More importantly, roll-fed paper bag machines integrate the printing unit directly into the production line. Once the paper enters the machine, all processes—printing, creasing, folding, and gluing—are completed in one go, eliminating the cost and space of a separate printing press. However, due to its integrated design, the printing unit's functionality is relatively basic, making it difficult to achieve complex color overlays and intricate patterns. It is more suitable for producing general-purpose paper bags with simple patterns and less demanding appearances, such as supermarket shopping bags and takeout bags. These products typically have high order volumes and are cost-conscious. The high efficiency of roll-fed paper bag machines can significantly improve production efficiency and profit margins.

Sheet Fed Paper Bag Machines focus more on the production of high-end paper bags. They require a single sheet of paper as raw material and must be used with a variety of auxiliary equipment according to the texture and appearance requirements of the paper bag. For example, if the durability and waterproofness of the paper bag need to be improved, a film can be first applied to the surface of the single sheet of paper using a laminating machine; if the high-end texture of the paper bag needs to be enhanced, a hot stamping machine can be used to print metallic patterns or text on the paper, or an embossing machine can be used to press texture lines on the paper surface; if a delicate printing effect is required, an offset printing machine can be used to complete the preliminary fine printing process. The addition of these auxiliary equipment can give paper bags a differentiated advantage in appearance and texture, effectively increasing the added value of the product, thereby obtaining higher pricing space in the terminal market and significantly improving profit margins. Therefore, sheet-fed paper bag machines are more suitable for the production of mid-to-high-end paper bags, such as branded clothing bags, cosmetic bags, gift bags, and other products that have high requirements for appearance and texture.

Therefore, the selection of equipment for making paper bags needs to be considered in conjunction with production methods and product positioning: Manual production relies on a flexographic or offset printing press paired with a slitting machine, suitable for small-batch personalized production. In mechanized production, roll-fed paper bag machines are suitable for efficiently producing low-cost, general-purpose paper bags, while sheet-fed paper bag machines paired with auxiliary equipment can create high-value-added products. Companies can choose the appropriate equipment combination based on their order size, product positioning, and profit targets.