Solution to several major problems of heat sealing of composite packaging bags

Solution to several major problems of heat sealing of composite packaging bags

1. composite packaging bags are widely used in modern industrial and commercial fields, and their heat sealing process is very important to ensure product quality and storage safety. However, in the actual operation process, the heat sealing of composite packaging bags often encounter some problems and challenges. This article will delve into the solutions to these common problems to help companies optimize their production processes and improve product quality.

The common problems in the heat sealing of 2. composite packaging bags (I) heat sealing is not firm heat sealing is not firm is one of the common problems in the production of composite packaging bags, mainly for the sealing is easy to crack or leak. This problem is often caused by insufficient heat sealing temperature, too short heat sealing time or material quality problems. To solve this problem, it is necessary to adjust the heat sealing temperature and time, while ensuring that high-quality materials are used.

The (II) thermal cover is uneven. The thermal cover is uneven and wrinkled at the seal. This may be due to damage or deformation of the heat seal mold. To solve this problem, it is necessary to regularly check and replace the damaged heat sealing mold to ensure the smoothness of the heat sealing process.

(III) heat seal misalignment Heat seal misalignment is manifested as the seal position deviates from the predetermined position. This is usually caused by inaccurate positioning of the packaging bag or improper adjustment of the heat sealing equipment. In order to solve this problem, it is necessary to optimize the positioning system of the packaging bag and adjust the heat sealing equipment accurately.

3. problem-solving strategies (I) solutions for heat sealing is not firm 1. adjust the heat sealing temperature: according to the nature of the packaging material, adjust the heat sealing temperature appropriately to ensure that the heat sealing process fully melts the material and improves the sealing firmness.

2. Extend the heat sealing time: under the premise of ensuring production efficiency, extend the heat sealing time appropriately to ensure the integrity of the heat sealing process.

3. Check the quality of materials: ensure that the quality of the packaging materials used is qualified, and avoid the use of inferior or expired materials.

(II) Solution for uneven hot cover 1. Replace the heat sealing mold: regularly check the integrity of the heat sealing mold, and replace it in time if it is damaged.

2. Adjust the heat sealing pressure: adjust the heat sealing pressure appropriately to ensure the smoothness of the material during the heat sealing process.

(III) Solution for heat sealing dislocation 1. Optimize the positioning system: Improve the positioning system of the packaging bag and improve the positioning accuracy of the packaging bag during the heat sealing process.

2. Adjust the heat sealing equipment: accurately adjust the heat sealing equipment to ensure the accurate heat sealing position.

4. preventive measures and daily maintenance (I) preventive measures 1. Regularly maintain and inspect the equipment to ensure that the equipment is in good condition.

2. Select high-quality packaging materials and heat-sealing films to ensure product quality.

3. Regularly train and guide employees to improve their operational skills and sense of responsibility.

(II) daily maintenance 1. Regularly check the integrity of the heat sealing mold, and replace the damaged mold in time.

2. Regularly check the electrical system and sensors of the equipment to ensure its normal operation.

3. Keep the equipment clean and avoid dust and impurities affecting the production quality.

5., it is of great significance to summarize the problem solving of the heat sealing link of composite packaging bags for improving product quality and production efficiency. Enterprises should take corresponding solutions and preventive measures according to their own situation to ensure the normal operation of the heat sealing link. At the same time, enterprises should also strengthen staff training, improve their operational skills and sense of responsibility, and lay a solid foundation for the long-term development of enterprises.

Cut three samples with a length of 250 mm from one PJ V-ribbed belt, and mark a marking line with a spacing of 100mm at the middle position of the PJ V-ribbed belt. When more than three samples cannot be taken from one PJ V-ribbed belt, samples can be cut from the same batch of PJ V-ribbed belt, but must be indicated in the report. 7.4.2 High temperature resistance test method
Place the sample at 100 ℃ ± 2 ℃ for 96 h ± 1 h and then take it out. After standing at laboratory temperature for more than 2h, bend it along a cylinder with a diameter of 20 mm at a contact angle of at least 90 °.