A resealable pouch is a soft packaging bag equipped with a special sealing device at the opening, allowing consumers to easily reseal it multiple times after the first opening to preserve the contents. It perfectly addresses the pain points of traditional packaging, such as the contents being prone to moisture, spoilage, spillage, or flavor loss once opened, significantly enhancing the convenience of use and the freshness retention of the product. It is not merely a protective shell for the product, but also a key tool for actively improving user experience, maintaining product quality, and strengthening brand image. In a highly competitive market, providing a resealable feature is rapidly transforming from a "plus point" to a "necessity".
Depending on the different sealing mechanisms, they can be classified into the following categories:
Mechanism: It opens and closes through two interlocking raised edges and grooves.
Advantages: Simple and intuitive operation, good sealing performance, relatively low cost.
Applications: The most widely used, commonly found in snacks, dried fruits, coffee, pet food, etc.
Mechanism: There is a pre-pressed cover strip inside the bag opening. It is torn open when opening and pressed back to its original position when sealing.
Advantages: It can provide a nearly full-width opening, facilitating pouring; the seal is smooth.
Applications: Cheese, sauces, wipes, medical supplies.
Mechanism: The bag body is equipped with a hard suction nozzle with a lid, which opens and closes by screwing or lifting the lid.
Advantages: Easy to pour and control the flow rate, excellent sealing performance.
Applications: Liquid beverages, laundry detergent, engine oil, seasonings.
Mechanism: It is sealed through two overlapping strips with hooks and loops.
Advantages: Reusable.
Disadvantages: The airtightness of the seal is relatively poor.
Applications: Some toys, stationery, or products with low requirements for airtightness.
Resealable Pouch is usually made with a multi-layer composite film structure to balance the requirements of printing, protection and sealing.
Outer layer: PET or BOPP, providing excellent printing surface, mechanical strength and wear resistance.
Middle layer (barrier layer): Depending on product requirements, VMPET (aluminum-coated film), AL (aluminum foil) or EVOH may be used to provide oxygen barrier, moisture-proof and light-protective properties.
Inner layer (heat sealing layer): PE or CPP, providing good heat sealing performance to ensure the firm adhesion of the bag's edge and zipper area.
Key point: The zippers or covers are firmly bonded to the inner material through heat pressing during the bag-making process.
The Resealable Pouch has an extremely wide range of applications, especially suitable for all products that need to be used in multiple sessions:
Food and beverages: potato chips, nuts, candies, biscuits, coffee beans/powder, cereal, pet food, jelly, sauces, etc.
Daily care products: washing powder, washing capsules, wipes, masks, shampoo refill packs.
Medicine and health care: medicine packages, nutritional supplements, disinfection cotton pads.
Industrial products: hardware parts, electronic components, chemical products.
Ultimate convenience: It perfectly addresses the problem that traditional packaging cannot be properly preserved once opened.
Maintain product freshness: It effectively prevents the contents from getting damp, oxidized, or spoiled, thereby reducing waste.
Enhance brand loyalty: The thoughtful design can significantly improve the user experience, thereby increasing the rate of repeat purchases.
Increase product value: Functionally stronger packaging can support higher product pricing.
Higher cost: Components such as zippers and flaps, as well as more complex bag-making processes, will increase production costs.
More complex structure: When designing, the compatibility between the zipper and the bag body, the sealing reliability, and the filling method need to be comprehensively considered.
Environmental issues: The use of multi-layer composite materials along with additional plastic components (such as zippers) makes recycling more difficult. The industry is exploring the use of a single recyclable material (such as a fully PE structure) to manufacture Resealable Pouches.
Core Function. With an integrated sealing system, it ensures that the package can be effectively sealed after each use.
Effectively prevents contents from getting damp, oxidizing, absorbing odors or deteriorating, especially suitable for products that need to be used in portions, significantly extending the shelf life after opening.
Simple and intuitive opening and closing operation, no need for additional tools (such as clips, sealers), enhancing user experience.
By better preserving the product, it reduces waste caused by dampness or deterioration.
Can be combined with other packaging forms (such as stand-up pouches, kraft paper bags, aluminum foil bags) to form a more comprehensive packaging solution.
