Understand the manufacturing procedures and key production considerations for stand-up pouches.

Release date:

2022-11-28 09:38

Source:

　　I. Production Procedures

　　1. Preparation: Install the transverse heat-sealing blade, the bottom heat-sealing blade, and the reinforced heat-sealing blade; also install the perforation device.

　　2. Feed the film, set the EPC, and align the bag edge with the pattern.

　　3. Adjust the bottom heat-sealing blade, enter the length dimension, and ensure the blade is aligned and level; use the upper blade as the reference for adjustment. Verify that the circular hole is perfectly round. Set up the photoelectric sensor.

　　4. Install the bottom film and adjust it to the center fold. Punch holes in the bottom film.

　　5. Adjust the transverse heat seal to align the heat-seal blade with the print position.

　　6. Adjust the reinforced heat-sealing block and apply additional pressure at the intersection of the four layers.

　　7. Adjust the cutting blade and the edge‑trimming device.

　　8. Verify and adjust the position of the bottom‑side perforation and the bottom‑side heat‑seal location. Confirm and adjust the positions of the transverse heat‑seal blade and the reinforcing heat‑seal block. Verify the heat‑seal strength and adjust the heat‑seal temperature.

　　II. Key Production Points

　　1. The tension of the base film must not be too high. Excessive tension will cause the circular holes on the underside to deform. Typically, the tension should be maintained at 0.05–0.2 MPa.

　　2. Use a higher pressure and lower temperature for the first set of heat-sealing knives, and maintain normal temperature and pressure for the second and third sets.

　　3. Adjust the spring pressure of the heat-sealing block to zero, allowing only the self-weight of the heat-sealing device to exert force.

　　4. Silicone rubber plates typically use a hardness of 50°; when the sealing area is relatively small, a 70° plate is employed.

　　5. During heat sealing, if the bottom circular hole is made elliptical, the waiting time can be extended by 100 minutes.

　　6. The bag-making speed is typically 50–100 bags per minute.

　　We hope the information provided above by the stand-up pouch editor has been helpful to you.

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