The selection of instant noodle paper tube sealing film requires comprehensive consideration of multiple factors such as sealing performance, production efficiency, and cost control. The material of the paper tube is relatively special, which not only effectively blocks moisture to keep the dough crispy, but also adapts to the fast operating rhythm of the production line. At present, multi-layer composite materials are widely used as a solution in the industry, and the combination of PET aluminum plated film and PE heat sealing layer has achieved a good balance between barrier properties, economy, and production efficiency. The aluminum plating layer of this structure can effectively block light and oxygen, while the PE layer ensures reliable heat sealing effect. It is recommended to control the thickness in the range of 50-70 microns to balance sealing strength and cost control. 

In actual production, the size of the sealing film needs to be precisely matched with the inner diameter of the paper tube, and a slight interference fit design is usually used to ensure the sealing effect. It is recommended to set the heat sealing temperature within the range of 130-150 degrees Celsius, which can ensure a firm seal and prevent damage to the paper tube coating due to high temperature. For high-speed production lines, special attention should be paid to the thermal conductivity rate of materials to ensure effective sealing can be achieved in an instant. At the same time, the trace amounts of oil and fat contained in the dough and the environment of the packaging also need to be tested for material compatibility in advance to avoid permeation problems caused by long-term contact. 

On the premise of ensuring basic functions, considering the user experience appropriately can enhance the product's favorability. The preset tear line design can make the opening process smoother, while the partial tear open design provides the convenience of repeated sealing. Printing design can cleverly combine transparent windows with metallic textured areas to display product content while maintaining functional integrity. From a cost perspective, it is recommended to use standard specifications of aluminum plated film for large-scale production to reduce procurement costs. For mid to high end product lines, it can be upgraded to full aluminum foil composite materials to achieve better preservation effects. 

Regardless of which option is chosen, it is necessary to ensure that the materials comply with national food safety standards, and it is recommended to cooperate with suppliers for sufficient sample testing to verify the sealing effect under actual production line conditions before bulk procurement. A suitable sealing film can not only effectively extend the shelf life of products, but also reflect the brand's emphasis on quality in subtle details, which is a carefully designed aspect in instant noodle packaging. 

Leadtra Packaging specializes in the research, development, production, and sales of aluminum foil packaging products such as aluminum foil sealing films and sealing gaskets. The products have strong sealing and barrier properties, excellent tear resistance, and have an experienced design and development team that can quickly provide customers with product sealing solutions. If you are interested in or have any questions about us, please feel free to call us for consultation.