The Sanitary Napkin Production Machine is a key piece of equipment in the SAP absorbent core processing section of a sanitary napkin production line. This SAP Sheet C-Folding and Festooning Machine is primarily responsible for C-folding, stacking, and buffering the SAP sheets. Using a dual-station continuous operation structure, the machine stably folds and neatly forms the SAP sheets at high speed, providing consistently sized and orderly arranged core materials for subsequent compounding, cutting, and forming processes. The entire machine utilizes a servo control system to achieve precise control of folding pitch, conveying speed, and stacking height, maintaining the structural integrity and absorption performance stability of the SAP in a high-speed production environment. It is suitable for the continuous production needs of mid-to-high-end sanitary napkins.

1. Dual-Station Structure

The SAP Sheet C-Folding and Festooning Machine adopts a dual-station synchronous operation design, allowing for alternating folding and stacking operations without stopping the machine. At the designed speed, the equipment can operate stably at 230–260 meters per minute, an increase of approximately 30% in production capacity compared to a single-station structure. The dual-station layout effectively distributes the load, reducing the risk of mechanical fatigue during continuous high-speed operation.

2. Precise Folding

The equipment optimizes the folding path for the characteristics of SAP sheets, supporting a folding material width range of 135–260 millimeters, with a folding size deviation controllable within ±1 millimeter. Through servo synchronous control and guiding structures, it ensures edge alignment and interlayer flatness of the SAP sheets during high-speed folding, providing a stable size foundation for subsequent core formation.

3. High-Speed Stability

Under normal working conditions, the Sanitary Napkin Production Machine maintains a stable operating speed in the range of 180–250 meters per minute, with a maximum design speed of up to 300 meters per minute. The entire machine uses a full servo drive system with a response time of less than 10 milliseconds, effectively reducing the risk of stretching and misalignment of the SAP structure caused by high-speed start and stop.

4. Controllable Tension

The equipment is configured with an independent tension control module, suitable for SAP rolls with a maximum unwinding diameter of Φ1200 millimeters. During operation, the tension fluctuation range can be controlled within ±3%, helping to prevent wrinkling, tearing, or uneven density of the SAP sheets during the folding and stacking stages, improving the consistency of the absorbent core.

5. System Integration

The SAP Sheet C-Folding and Festooning Machine can be interconnected with the entire Sanitary Napkin Production Machine production line, supporting raw material adaptation for SAP sheet widths of 85–120 millimeters. The entire machine supports OEM and ODM configuration schemes, making it easy to adjust parameters according to different product specifications, improving production line compatibility and expandability.

1. Daily Use Sanitary Napkins

On the daily-use sanitary napkin production line, this equipment is used for continuous C-folding and buffering and stacking of SAP absorbent sheets. Through stable pitch output, the folded SAP core material is accurately delivered to the compounding station, effectively ensuring consistent absorption area size for each product, suitable for high-speed continuous mass production.

2. Night Use Sanitary Napkins

Considering the wider core and higher absorbency requirements of night-use sanitary napkins, the SAP Sheet C-Folding and Festooning Machine can adjust the folding width and stacking height to achieve stable output of multi-layer SAP sheets. The equipment operates under low tension conditions, which helps maintain a uniform core structure and improves the leak-proof performance of the finished product at night.

3. Ultra-Thin Series

In the production of ultra-thin sanitary napkins, this Sanitary Napkin Production Machine precisely controls the folding thickness and stacking density of the SAP sheets, ensuring uniform distribution of the core material even under reduced thickness conditions. The folded SAP can directly enter the hot pressing or compounding process, reducing secondary finishing steps and improving production cycle stability.

4. High Absorbency Type

When used for high-absorbency sanitary napkins, the equipment can orderly stack multiple layers of SAP sheets at a set pitch, facilitating subsequent quantitative control of the core material. The stable folding and conveying process helps ensure consistent distribution of absorbent material, reducing variations in absorption performance between product batches.

Q: Is this equipment only suitable for SAP sheets?

A: The equipment is primarily designed for SAP sheet structures and is compatible with SAP sheets and some non-woven absorbent materials. Under the premise of meeting the material's flexibility and strength requirements, a certain range of material compatibility can be achieved through parameter adjustment, but process verification is required before actual production.

Q: Is the SAP structure easily damaged during high-speed operation?

A: Within the normal process parameter range, the equipment operates through low-tension control and a servo synchronization system. Tension fluctuations are controlled within a small range, effectively reducing the risk of stretching and damaging the SAP sheet structure during high-speed operation, making it suitable for long-term continuous production.

Q: Does it support integration with existing sanitary napkin production lines?

A: The SAP Sheet C-Folding and Festooning Machine uses standard industrial communication interfaces and can be linked with mainstream sanitary napkin production machine control systems for signal synchronization, facilitating integration into existing production lines and achieving synchronized production cycles.

Q: Is parameter switching complicated?

A: The equipment uses a human-machine interface for parameter settings. Multiple sets of process parameters can be preset for different SAP specifications. When changing product models, simply calling the corresponding recipe completes the switch, reducing adjustment time and improving production efficiency.

Q: Does it support customized configurations?

A: The equipment supports OEM and ODM customization solutions. The structural configuration and control logic can be adjusted according to the customer's SAP width, production speed, and factory layout requirements, making it suitable for sanitary napkin manufacturers of different scales.