Reducing the breakage rate is a key concern during PE bag production. Here are some tips to help reduce the breakage rate:
Optimize material selection:
Select PE material with sufficient thickness, toughness, and impact resistance. Avoid using recycled materials or fillers, as these may reduce the overall quality of the bag.
Consider adding an appropriate amount of toughening or impact-resistant agents to improve the material's toughness.
Increasing heat seal strength:
During the PE film manufacturing process, add an appropriate tackifier or tackifying masterbatch to improve the heat seal strength between films.
Optimize heat sealing process parameters such as heat sealing temperature, heat sealing pressure, heat sealing time, and cooling time to achieve optimal heat sealing results. Ensure the heat sealing temperature is set between the film's melting point and decomposition temperature to avoid temperatures that are too low or too high, which may result in poor heat sealing.
Avoid the effects of gases:
Excessive gas in the product or excessive weight may cause the PE bag to break during transportation or storage. Therefore, vacuum packaging technology can be considered to reduce the impact of gases on PE bags.
Monitoring the Cold Resistance of Packaging Materials:
Cold resistance is a key performance indicator of flexible plastic packaging materials. By selecting appropriate resin raw materials, improving packaging material processing, adding an appropriate amount of plasticizer, and choosing packaging materials with good low-temperature resistance, the cold resistance of packaging bags can be effectively improved, preventing an increase in bag breakage rates in low-temperature environments.
Comprehensive Physical Property Testing:
Do not overlook comprehensive physical property testing of packaging bags, such as tensile strength, tear strength, and dart impact. These performance tests help ensure that PE bags possess sufficient strength and durability under normal use conditions.
Standardized Operating Procedures:
During the production process, ensure that employees follow standardized operating procedures to prevent PE bag damage caused by improper operation. For example, during the filling and sealing process, ensure standardized operation when filling food to avoid contamination of the sealed area, which could affect seal strength.
Quality Control and Testing:
Establish a strict quality control system to monitor and test every step of the production process. Defective products detected should be promptly screened and processed to prevent them from entering the market.
Equipment Maintenance and Updates:
Regularly maintain and service production equipment to ensure proper operation and extend its service life. For older equipment, consider replacing or upgrading it to improve production efficiency and product quality.
The implementation of these measures can effectively reduce the breakage rate of PE bags, improve product quality, and reduce production costs.
