Zipper Bag

Resealable closure × repeated use × convenient design for storage and freshness

Zipper bag product image (illustrative)

A zipper bag features a resealable press-to-close strip at the opening. Two interlocking plastic tracks allow the bag to be opened and closed multiple times without damaging the packaging. It is not a specific structure but a feature added to various bag types, such as stand-up pouches or three-side seal bags.

Main Structure and Sealing Method
  • The zipper strip is heat-sealed to the inner side near the top edge. The bag itself may be three-side seal, stand-up, or even gusseted, but a wider flat edge is reserved to accommodate the zipper. The strip is attached to the film before the bag is formed. Many zipper bags add an easy-tear seal above the zipper to ensure initial freshness, allowing consumers to tear off the seal before first opening.
Features and Advantages
  • Zipper easy-tear bags offer user-friendly design. The resealable strip lets consumers close the package after opening to prevent moisture, oxidation, or spills, extending shelf life. The easy-tear opening allows quick access without scissors. The combined design keeps the zipper area clean and durable, enhancing quality and hygiene.
Common Applications
  • Suitable for dry foods (nuts, coffee beans, dried fruit), household goods, pet food, frozen vegetables, milk powder, protein powder, and other products that require multiple uses or freshness.
Thomson Value-Added Services
  • We provide various zipper styles—single, double, self-locking, slider—along with color and printing options. Tear-line precision and durability are tested, and anti-contamination layers or zipper positions can be adjusted according to product needs.
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