Ziplock Pouches: Innovative Resealable Packaging Methods

Jan 4, 2024

What is Ziplock Pouch?

Ziplock pouch is flexible plastic packaging bag with a resealable zipper closure, commonly used for storing and preserving a variety of items, like foods, and beverages.

The zipper seal allows the contents to be enclosed securely and protects them from moisture, dust, or spills.

Ziplock pouches offer simple yet effective packaging for keeping foods fresher for longer. Their airtight seal and resealable design provide ideal containment and storage.

With their versatility and user-friendly features, ziplock pouches have become one of the most common packaging solutions utilized across many industries and applications.

Types of Zippers in Packaging

Several types of zippers can used in packaging, such as PTC zippers, slider zippers, velcro zippers, and front zippers, each designed for specific applications and preferences.

Press to Close (PTC) Zipper

The press-to-close zipper is a normal type of zipper closure that is commonly used on stand-up zipper pouches, they are easy to use and can zip together when pressed, and don’t require pulls.

For press-to-close (PTC) zippers used on stand-up pouches, the material of the zipper tracks needs to match the inner layer of the pouch itself in order to properly bond together. The innermost film determines the compatible zipper material.

stand up pouch with zipperFor example, in a typical stand-up confectionery pouch with an outer structure of PET/AL/PE, the inner layer of PE dictates that the PTC zipper must also be made of polyethylene (PE) to fully fuse and integrate with the bag lining.

The retort pouches with zipper with the structure of PET/AL/NY/PP, its inner polypropylene (PP) sealant film determines that the integrated PTC zipper must also be made from polypropylene.

Ensuring material conformity between the inner pouch layer and PTC zipper is crucial to attaining a seamless composite unit. Mismatching polymers would prevent adequate adhesion and risk compromising the seal integrity.

Slider Zipper

Slider zippers have a sliding mechanism that allows for easy opening and closing, feature a plastic pull tab that slides along the zipper track to open and close it. They are commonly used in resealable bags for snacks, frozen foods, pet food, and more.silder zipper pouches

The slider zipper is easy to open and close with the slider mechanism which is more convenient than the press-to-close zipper. The slider can be fully opened to allow wide access to contents. Silder zipper may provide a stronger seal than other zipper types when fully closed.

Pouches that incorporate slider zipper closures commonly feature multi-material constructions such as PET/AL/NY/PE, PET/PE, or BOPP/PE.

Velcro Zipper

Velcro zipper is a type of closure that is an alternative to traditional zippers. Instead of a sliding zipper mechanism, it uses two strips of velcro (hook and loop fastener) to seal the pouch. One strip is sewn on each overlapping side.

velcro zipper pouchesTo open, the strips are pulled apart. To close, they are pressed together so the hooks and loops adhere in place.

The velcro strips can be peeled open or pressed closed using one hand, it is the most convenient choice for zipper types.

But velcro zipper may not seal as tightly as other types of zipper. Velcro strips could potentially peel off over time with heavy use. Closure feels less “clean” than a zipper.

Pouches utilizing velcro zippers commonly feature multilayer constructions such as PET/AL/NY/PE, PET/PE, or BOPP/PE.

Front Zipper

The front zipper closure is located on the front-facing side of the pouch, as opposed to being on the top.

With the zipper on the face/front, it creates more of a “bag” look compared to a top-zip style.

Many top-zip pouches suffer from the top portion tearing off during the initial opening process. This not only damages the functional hang hole used for shipping/display but can also remove important branding elements printed in that top header space.

Front Zipper PouchesThe front-zip design elegantly addresses this common issue. By repositioning the zipper closure to the front face rather than the top edge. This prevents the zipper area and top header from separating entirely from the main pouch body. The front-zip approach keeps both the hang mechanism intact without compromising printed logos/labels.

The front-zip configuration therefore offers a robust solution that protects not only the functional elements but also the visual identity markers critical for maintaining brand equity and a positive user experience. It effectively avoids the top-tearing problem plaguing many top-zip designs.

Double Track Zipper

Double-track zipper bags are a resealable plastic bag that features two separate zipper tracks. The double zipper bags are designed for added security, durability, and ease of use. The double zipper tracks run parallel to each other, allowing the user to seal the bag by sliding the zipper across both tracks.

These two zipper tracks provide an extra layer of sealing, reducing the likelihood of leaks or spills, and enhancing the overall integrity of the closure.

Double track zipper pouches are versatile and can be used for storing food, snacks, small items, or organizing belongings during travel.

Child Resistant Zipper

Child Resistant Zipper is designed to help prevent young children from easily opening or accessing its contents. Child-resistant zippers are more difficult for small hands to operate compared to standard zippers.

child resistant pouchesChild resistant zipper Pouches often have locking mechanisms, double zipper pulls, or adhesive flaps that make them harder to grasp, pull, and open than a standard zipper. The designs add an extra layer of difficulty.

Zippers undergo testing where young children attempt to open the pouch within 5 minutes. If a certain percentage cannot open it, the design meets safety standards for child resistance.

The child-resistant pouches are commonly used to package over-the-counter drugs, vitamins/supplements, chemicals, batteries, and other items that could be dangerous if ingested by young kids. Proper child-proof packaging helps prevent accidental ingestion.

By making the zipper more challenging to operate, it helps deter young kids from accessing potentially dangerous contents in the pouch like medications, chemicals, or batteries that could cause poisonings if ingested.

Benifits of Ziplock Resealable Packaging Bags?

Ziplock pouches afford a wide variety of benefits including:

  • Freshness
    The ziplock resealable bags allow you to better preserve the freshness of food items by minimizing exposure to air each time you open the bag. The resealable seal helps keep food fresher, and longer.
  • Portion control
    You can easily reseal part-used bags to save leftovers or portion out snacks without waste. This helps control food portions and prevents spoilage of unused portions.
  • Convenience
    Ziplock pouches provide easy, one-handed opening and closing without the need for clips or ties. This makes them very convenient for on-the-go snacking directly from the bag.
  • Reclosability
    The zipper mechanism allows many reuse cycles, unlike regular plastic bags which generally cannot be resealed. This reduces plastic waste.
  • Household Products

Ziplock resealable packaging bags help extend freshness, reduce waste, and provide convenience and easy storage or portioning of items. Their reclosable design brings many advantages over regular plastic bags.

What Ziplock Resealable Pouches Used For?

Ziplock resealable pouches are employed for various purposes due to their versatility, convenience, and their sealable nature, effectively preventing product spillage.

Their ability to create an airtight seal makes them particularly advantageous for maintaining the freshness and integrity of edible products.

The secure closure not only safeguards against spills but also helps preserve the quality and flavor of the contents, making these resealable packaging bags a reliable choice for packaging various food items.

  • Food Items: Retort food, frozen food…
  • Pet Food
  • Coffee and Tea
  • Snacks and Confectionery
  • Household Products

ziplock resealable packaging pouch offers convenient packaging and storage for foods and more thanks to their resealable and leakproof design.

How to Choose the Right Zippered Pouches?

Choosing the right zippered pouch for your products may be a challenge.

  • It’s crucial to evaluate key attributes like your product’s required shelf life needed in packaging. Short or long-term storage needs will dictate material choices.
  • The quality of zippered pouches is a most important point.
  • Transparency levels must suit your branding goals – clear or opaque options available.
  • Carefully consider preservation timelines – whether days, weeks or longer term – and choose barrier materials and construction matching your product’s stability parameters.
  • Request samples to test things like barrier properties, seal strength, print compatibility, and appearance against your intended use and branding aesthetic. This offers real-world performance insights.
  • Engage suppliers early for guidance matching proven pouch formulations with preservation needs. Learn how material properties like permeability, puncture resistance, etc. impact shelf life.

5 Types of Ziplock Pouches Packaging

There are several types of ziplock pouches packaging designed to cater to different needs and industries. Some common types include:

  1. Stand-Up Ziplock Pouches:
    The stand-up pouch with ziplock has a gusseted bottom that allows it to stand upright, providing a convenient and attractive display for retail packaging.The stand-up pouches with zipper at the top of the pouch allow consumers to easily open and reclose the pouch, maintaining the freshness and integrity of the contents.
    stand-up ziplock pouches
  2. Flat Bottom Ziplock Pouches:
    The box-like structure of flat bottom pouch with zipper allows it to stand upright on store shelves, providing a stable and attractive display, and the zipper at the top to easy to open and close for consumers.Flat-bottom ziplock pouches are versatile and suitable for various products, including snacks, coffee, pet food, and other dry goods.

    The box-like shape accommodates a larger volume of product while maintaining a sleek appearance.

  3. 3-side Seal Ziplock Pouches:
    3-Side Seal Ziplock Pouches come in different sizes, widely suitable for snacks, candies, nuts, powders, and more.The combination of the 3-side seal and Ziplock closure offers a balance of secure packaging and user-friendly resealability.
  4. Quad Seal Ziplock Pouches:
    Quad-seal ziplock pouches are sealed on all four sides, creating a more stable structure when filled with the product. This design provides added strength and durability.

    Quad seal pouches with zipper are versatile and can be used for packaging various products such as coffee, snacks, pet food, and more.
    quad seal ziplock pouches

  5. Kraft Paper Ziplock Pouches:
    Kraft paper ziplock pouches are known for their natural and unbleached appearance, contributing to a more organic and environmentally conscious aesthetic.

    Similar to standard ziplock pouches, kraft paper ziplock pouches include a resealable zipper at the top allowing consumers to easily open and reclose the pouch, maintaining the freshness of the contents.

    Kraft paper ziplock pouches are versatile and can be used for packaging a variety of products such as organic snacks, coffee, tea, dried fruits, and more.
    kraft paper ziplock pouches

Other Values that can be Added in Zipper Pouches

Zipper pouches can integrate multiple supplementary traits to deliver added worth, maximize store visibility, and augment the consumers’s engagement:

  • Tear notches: make it easier for consumers to open the packaging without the need for scissors or other cutting tools.
  • Laser scoring: a precision technique used in packaging to create controlled and precise cuts or score lines on zipper pouches.
  • Clear windows: transparent or translucent sections incorporated into the pouches, allow consumers to see the contents inside without opening the packaging and attract consumers with visually appealing displays.
  • Hanging holes: strategically placed perforations or openings designed to accommodate a hanging mechanism, allowing the pouch to be displayed on hooks or pegs in retail environments, enhancing the visibility and accessibility of products on store shelves.
  • Handle: convenient and functional features that make it easier for consumers to carry and transport packaged products.
  • Valves: one-way degassing valves integrated into the packaging. Are commonly used in the packaging of products like coffee, where the release of gases, specifically carbon dioxide, is crucial for preserving freshness and preventing the pouch from bursting.
  • Shapes: zipper pouches can come in various shapes to accommodate different products, enhance branding, and cater to consumer preferences.
  • Matte/gloss effects: the surface finish in matte or glossy effects plays a significant role in influencing the visual appeal, perceived quality, and overall branding of the product.

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