Why Sandwich Packaging Should Be Evaluated for Opening as Well as Sealing / REACH & RoHS Food Packaging Plastic Films Manufacturer | Der Yiing Plastic Co.,Ltd.

FreshPeel Easy Open Sandwich Bags — Features and Applications application and film materials

FreshPeel Easy Open Sandwich Bags — Features and Applications application and film materials

Why Sandwich Packaging Should Be Evaluated for Opening as Well as Sealing

Explore how FreshPeel side tabs and a retained lower wrapper support sandwich opening and handling, and what to test before launch.


Sandwich packaging needs to protect the product before sale and allow convenient access when it is eaten. Those requirements should be evaluated together. A pack that seals reliably can still be difficult to use if the starting point for opening is unclear or the wrapper tears unpredictably.

A Defined Opening Point Improves Usability

FreshPeel is DY’s easy-open triangular sandwich packaging design. Side pull tabs help open the upper section, while the lower wrapper remains around the sandwich as a handhold. The design is identified by Taiwan utility model reference M519623.

A defined opening point gives users a place to apply force without a separate tool. The retained lower wrapper also helps reduce direct hand contact with the sandwich during eating.

The Bag Must Fit the Filled Product

Sandwich dimensions and filling height affect how easily the product can be loaded and how the finished pack holds its shape. The film structure and seals must work with the packing method as well as the opening design.

Convenience stores, bakeries, takeaway outlets and school food services may have different packing and display arrangements. A trial using the actual sandwich is more informative than judging an empty bag.

Check Pull Tabs and Remaining Coverage

Evaluate tab accessibility, opening force and tear direction with filled samples. After the upper section is removed, check whether the lower wrapper provides the intended grip and coverage. Artwork should leave the opening points easy to identify.

Presentation and Protection Still Need to Work Together

A transparent area can show the sandwich contents, while printed areas support product identification. The final design must also suit food-contact conditions, refrigerated handling and the required shelf life. Easy opening should be confirmed alongside seal integrity rather than treated as a substitute for it.

Use Sample Packs to Confirm the Complete Experience

Provide DY with product dimensions, packing equipment, display conditions, graphics and expected volume. Checking loading, sealing, transport and opening in one evaluation helps identify adjustments before the pack is introduced into routine production.


Why Sandwich Packaging Should Be Evaluated for Opening as Well as Sealing | Packaging Plastic Films OPP & PET Films Manufacturer for Industrial Use | Der Yiing Plastic Co.,Ltd.

Located in Taiwan since 1991, DY ADVANCED MATERIALS INC. has been a plastic films and bags manufacturer. Their main plastic packaging films, including Heat Sealable Films, Straw Overwrap Films, Coextruded Multi-Layer Films, Vacuum Bags, Banding Films, Sandwich Bags, Release Films, Ant-Fog Films and Anti-Bacterial Films, which are ISO 9001, ISO 22000, REACH and RoHS certified.

DY brings 35 years of experience in film materials and processing applications. Formulation and structure design, coextrusion, coating and application testing support packaging films and functional materials. Key series include coextruded films, PVA-coated high-barrier films, heat-insulating cooling films and sandwich bags, with custom specifications evaluated for product and process requirements. Film materials expertise since 1991, combining materials R&D, precision processing and custom development for packaging and functional materials.

DY has been offering customers flexible packaging OPP and PET films, both with advanced technology and 35 years of experience, DY ensures each customer's demands are met.