{"id":3369,"date":"2026-02-11T15:35:13","date_gmt":"2026-02-11T08:35:13","guid":{"rendered":"https:\/\/hadupack.com\/?post_type=product&p=3369"},"modified":"2026-09-28T15:41:35","modified_gmt":"2026-09-28T08:41:35","slug":"tui-zipper","status":"publish","type":"product","link":"https:\/\/hadupack.com\/en\/san-pham\/tui-zipper\/","title":{"rendered":"What is a zipper bag?"},"content":{"rendered":"

<\/p>\n

What is a zipper bag?<\/strong><\/em><\/span><\/h2>\n

Zipper bags, or zip-lock bags, are a type of packaging made primarily from plastic film, using a pre-designed zipper closure that can be opened and closed multiple times. They are classified into three main types: regular zipper bags, document zipper bags, and concealed zipper bags.<\/span><\/p>\n\n\n\n
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\u25c6<\/span>Learn more:<\/span><\/p>\n

    \n
  1. https:\/\/hadupack.com\/san-pham\/tui-chong-tinh-dien\/<\/strong><\/em><\/a><\/span><\/li>\n
  2. https:\/\/hadupack.com\/san-pham\/tui-niem-phong\/<\/a><\/span><\/li>\n
  3. https:\/\/hadupack.com\/san-pham\/tui-pe-day-keo\/<\/a><\/span><\/li>\n<\/ol>\n

    The selected materials include various types of plastics such as PVC, PET\/PA\/CPP composite film, and PE. The production process includes high-frequency welding, sewing, and gravure printing.<\/span><\/p>\n\n\n\n
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    In terms of applications, ordinary zipper bags are widely used for packaging daily necessities and storing clothing accessories, document zipper bags are specially designed for stationery, and stand-up pouches are suitable for packaging food that requires high temperature and heat resistance.<\/span><\/p>\n\n\n\n\n
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    Modern manufacturing companies often have Class 100,000 cleanrooms and ERP traceability systems to ensure that products meet food packaging standards.<\/span><\/p>\n\n\n\n
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    Application Areas<\/strong><\/em><\/span><\/h3>\n

    Each type of product has specific applications in different industries:<\/span><\/p>\n

      \n
    1. Food packaging: Stand-up zip bags can hold liquid soups and semi-solid seasonings, while maintaining a tight seal after sterilization at 135\u2103<\/span><\/li>\n
    2. Stationery manufacturing: Zip document bags are equipped with labeling slots for subject classification, suitable for storing books, exercise books, and other school supplies<\/span><\/li>\n
    3. Industrial packaging: Customized PVC zip bags are used to protect precision parts from dust, and the surface can be printed with company logos and warning signs<\/span><\/li>\n
    4. Household hygiene: Zip-sealed packaging is used for wet wipes (such as kitchen cleaning wipes, antibacterial toilet wipes, and quick-drying wipes after exercise), and some brands use lightweight biodegradable zip bags (such as PLA+PBAT composite packaging).<\/span><\/li>\n<\/ol>\n\n\n\n
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      Classification and Structure<\/strong><\/em><\/span><\/h3>\n

      According to differences in application scenarios, it can be divided into three basic types:<\/strong><\/em><\/span><\/p>\n

        \n
      1. Ordinary zipper bags: Made of transparent or frosted plastic film, including subtypes such as zipper bags with zippers and frosted zipper bags, suitable for packaging clothing accessories and storing daily necessities.<\/span><\/li>\n
      2. Document zipper bags: Designed for A4-sized documents, using a double-mesh structure to improve durability, equipped with a viewing window and a smooth zipper system, suitable for students’ test paper classification and management needs.<\/span><\/li>\n
      3. Self-standing zipper bags: Achieve self-standing functionality by folding the bottom, mainly used for packaging powdered food, equipped with a high-temperature-resistant composite film to adapt to 121\u2103 sterilization processing.<\/span><\/li>\n<\/ol>\n\n\n\n
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        Materials and production processes<\/strong><\/em><\/span><\/h3>\n
          \n
        1. The main products incorporate a combination of multiple processing technologies: High-frequency welding technology: Uses a high-frequency electric field to induce thermal motion in PVC molecules, achieving seamless bonding of the bag body, with welding strength of up to 50N\/15mm.<\/span><\/li>\n
        2. Multilayer composite process: Improves puncture resistance through the PA layer, enhances heat-sealing performance through the CPP layer, and provides a printing substrate through the PET layer.<\/span><\/li>\n
        3. Stitch reinforcement process: Uses double stitching at the bag opening and metal zipper ends, enabling the opening and closing service life to exceed 5000 cycles.<\/span><\/li>\n<\/ol>\n\n\n\n
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          Product Features<\/strong><\/em><\/span><\/h3>\n

          Functional specifications meet diverse usage needs:<\/span><\/p>\n

            \n
          1. Sealing performance: A dual-track zipper design is adopted, with a water vapor transmission rate <5g\/(m2\u00b724h), and an oxygen transmission rate <15cm3\/(m2\u00b724h\u00b70.1MPa)<\/span><\/li>\n
          2. Visual presentation: The matte surface treatment can make the haze value exceed 90%, ensuring content visibility while protecting privacy<\/span><\/li>\n
          3. Weather resistance: Maintains flexibility in low-temperature environments, with elongation at break >250%<\/span><\/li>\n<\/ol>\n\n\n\n\n\n\n\n
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            Production Standards<\/strong><\/em><\/span><\/h3>\n

            Large-scale manufacturing enterprises implement strict quality control processes:<\/span><\/p>\n

              \n
            1. Environmental control: The air cleanliness of the production workshop reaches Class D (Class 100,000) according to ISO 14644-1, and the number of dust particles is \u22643,520,000\/m\u00b3.<\/span><\/li>\n
            2. Inspection system: Equipped with gas chromatographs to detect solvent residues (total <5mg\/m\u00b2) and electronic tensile testing machines to test heat-seal strength (>35N\/15mm)<\/span><\/li>\n
            3. Traceability management: Raw material batch tracking is carried out through an ERP system to ensure that products meet food-contact standards.<\/span><\/li>\n<\/ol>\n\n\n\n
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              Zipper bags offer many benefits, including:<\/strong><\/em><\/span><\/h3>\n
                \n
              1. Keeping food fresh: Ziplock bags with zippers help minimize food’s exposure to air each time you open the bag, helping to preserve freshness better. The resealable closure helps keep food fresh for longer.<\/span><\/li>\n
              2. Portion control: You can easily reseal partially used bags to store leftovers or divide snacks into smaller portions without waste. This helps control portion sizes and prevents unused food from spoiling.<\/span><\/li>\n
              3. Convenience: Zipper bags are easy to open and close with one hand, without needing clips or ties. This makes them extremely convenient for taking snacks directly from the bag.<\/span><\/li>\n
              4. Resealability: The zipper design allows for repeated use, unlike ordinary plastic bags, which often cannot be resealed. This reduces plastic waste.<\/span><\/li>\n
              5. Household use: Ziplock bags with zippers help extend shelf life, reduce waste, and provide a convenient and easy way to store or portion food. Their resealable design offers many advantages over ordinary plastic bags.<\/span><\/li>\n<\/ol>\n\n\n\n
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                What are Ziplock bags with zippers used for?<\/strong><\/em><\/span><\/h3>\n

                Resealable Ziplock bags are used for many different purposes thanks to their versatility, convenience, and ability to provide an airtight seal, effectively helping to prevent food from spilling. They create a seal that is particularly beneficial for maintaining the freshness and quality of food.<\/span><\/p>\n

                The secure seal not only prevents spills but also helps maintain the quality and flavor of the food inside, making these resealable bags a reliable choice for packaging a wide variety of foods.<\/span><\/p>\n

                Cooked food, frozen food\u2026 Pet food coffee and tea snacks and confectionery household goods Resealable self-sealing bags provide convenient packaging for food and other items thanks to their resealable and leak-resistant design.<\/span><\/p>\n

                Contact BiNa Vietnam Joint Stock Company soon for guidance on choosing a packaging bag formulation proven to suit your storage needs. Understand how material properties such as permeability and puncture resistance affect shelf life.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

                What is a zipper bag? Zipper bags, or zip-lock bags, are a type of packaging made primarily from plastic film, using a pre-designed zipper closure that can be opened and closed multiple times. They are classified into three main types: regular zipper bags, document zipper bags, and concealed zipper bags. \u25c6Learn more: https:\/\/hadupack.com\/san-pham\/tui-chong-tinh-dien\/ https:\/\/hadupack.com\/san-pham\/tui-niem-phong\/ https:\/\/hadupack.com\/san-pham\/tui-pe-day-keo\/ … <\/p>\n

                Continue reading “What is a zipper bag?”<\/span><\/a><\/p>\n","protected":false},"featured_media":3393,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_cat":[155],"product_tag":[],"class_list":["post-3369","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-bao-bi-nhua"],"yoast_head":"\nWhat is a zipper bag? - BINA VI\u1ec6T NAM<\/title>\n<meta name=\"description\" content=\"What is a zipper bag? 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