The back-seal pouch features a heat-sealed seam on the back, ensuring the integrity of the front printing design. This type of pouch effectively lowers packaging material costs, using approximately 40% less material and very cheap. Back-seal pouches are widely used in the potato chip industry
Premade back seal pouches are pre-manufactured bags that are filled with products and then heat-sealed at the top. This method is ideal for businesses looking for a straightforward, efficient packaging solution. Premade bags offer consistency in size and quality, making them perfect for small to medium-sized operations that require reliable and easy-to-use packaging options.
For larger-scale operations, using rollstock on an automated packaging machine is a highly efficient option. The machine wraps the product with the film and simultaneously forms the bag, streamlining the packaging process. This method allows for high-speed production and flexibility in bag size and design, making it suitable for businesses with high-volume packaging needs and a focus on operational efficiency.
The most cost-effective option for back seal pouches is the two-layer plastic composite, typically PET/PE. This combination offers basic protection and durability, making it a popular choice for everyday packaging needs without breaking the budget.
For enhanced barrier properties, three-layer pouches incorporating a VMPET layer are ideal. The additional VMPET layer provides superior protection against moisture and oxygen, ensuring the product’s freshness and extending its shelf life.
Combining kraft paper with PE creates a two-layer pouch that offers a natural, eco-friendly appearance. This option is perfect for brands looking to emphasize sustainability while still providing adequate protection for their products.
Adding a VMPET layer between kraft paper and PE enhances the barrier properties of the pouch. This three-layer structure combines the rustic look of kraft paper with the advanced protection of VMPET, making it suitable for premium products.
For pouches requiring printed designs, an additional PET layer can be added to the kraft paper, VMPET, and PE structure. This four-layer configuration allows for high-quality printing while maintaining excellent barrier properties and a natural look.
Choose the best bag style for your products. The packaging bag is not only a storage container, but also an advertisement for marketing.
In the food industry, packaging not only serves to protect and preserve products but also plays a crucial role in ensuring consumer safety. Back seal pouches are a popular choice for food packaging due to their versatility and efficiency. However, one of the most critical aspects of these pouches is their compliance with food contact safety standards.
The innermost layer of back seal pouches is typically made from polyethylene (PE), a material renowned for its safety and suitability for direct food contact. PE is a non-toxic, inert material that does not react with food substances, ensuring that the contents remain uncontaminated and safe for consumption. This makes PE an ideal choice for the heat-seal layer in back seal pouches, providing a secure and reliable seal while maintaining the integrity of the food inside.
PE’s safety credentials are backed by rigorous testing and certification processes, ensuring that it meets stringent food safety regulations. This compliance is essential for maintaining consumer trust and meeting the legal requirements of various markets around the world. By using PE as the inner layer, manufacturers can confidently assure their customers that their products are packaged in materials that are both safe and effective.
Moreover, the use of PE in back seal pouches offers additional benefits such as excellent moisture resistance and durability. These properties help to extend the shelf life of food products, keeping them fresh and appealing for longer periods. The material’s flexibility also allows for easy handling and storage, making it a practical choice for both manufacturers and consumers.
Some features can make the bag easier for consumers to use such as zipper,spout and hang hole.
