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China Suppliers Resealable Zipper Snack Package Ziplock Bag Factory - Durable and Heat-Sealed for Freshness

Our manufacturing process starts with precision extrusion using advanced film-blowing machines in our China factory, which transform polymer pellets into consistently thin films ranging from 50 to 200 μm in thickness. These films are then expertly cut to specific dimensions through sophisticated die-cutting systems. For a personalized touch, we offer optional rotary printing units that apply custom graphics using food-grade inks before the cutting stage. To ensure superior sealing, we utilize heat-sealing technology at temperatures between 140-160°C, effectively bonding bag edges and incorporating interlocking zip tracks made from compatible polymers like HDPE for improved closure integrity. Our commitment to quality is evident through rigorous control protocols that verify over 5,000 open/close cycles using automated testing rigs, guaranteeing mechanical reliability across a wide temperature range from -20°C to 60°C. As trusted suppliers in the industry, we pride ourselves on delivering high-quality products tailored to meet our customers' needs.

    Product Description

    Item Custom PE Packaging Bag Resealable Food Storage Zip lock bag
    Material EP, EPP, EPC etc.
    Size from 5 to 70cm customized as request
    Thickness from 0.025-0.25mm customized as request
    colors Any color available
    Bag Type Zipper bag, self sealing bag, flat pocket,etc.
    Feature
    • 1. Moistureproof, waterproof, insect proof, mildew proof, non-toxic and tasteless, strong flexibility, convenient sealing, very durable;
    • 2. It can be reused;
    • 3. All kinds of patterns and words can be printed, and the printing content can be customized;
    • 4. Good transparency and sealing performance;
    • 5. Zipper seal design, good sealing, neat edge sealing, bookbinding air hole;
    • 6. No peculiar smell, tight seal, good leak proof, but it is not recommended to pack liquid;
    • 7. Environment friendly and degradable.
    sample available for free but shipping cost as your side
    Design free design or by customer's artwork
    Application Bedding bags, shopping bags, gift bags, storage bags, waterproof bags, jewelry bags, general packaging, food bags, cosmetics bags, clothing bags, daily necessities bags, digital packaging,etc
    Certificate Export license,ISO, Health Certificate,,FORM A,CO,SGS
    TradeTerms EXW/FOB/C&F/CIF
    Note If you have any bags request, do not hesitate to send an inquiry.We will reply to you at first time.

    Product Features

    Zipper storage bags represent an innovative packaging solution crafted from polymer materials like low-density polyethylene (LDPE). These self-sealing containers combine material science with practical design, featuring inherent non-toxicity, odorless composition, and exceptional optical clarity that maintains 90%+ light transmission. The molecular structure of LDPE grants remarkable tear resistance (typically 3-5N/mm² tensile strength) while preserving material flexibility, achieving optimal balance between durability and pliability. Chemically inert properties ensure compatibility with various stored contents, creating an effective barrier against oxygen infiltration.

    Frequently Asked Questions

    Q: What materials are used to manufacture these resealable storage bags?
    These bags are manufactured using high-quality polymer materials such as PE, PPE, CPE, and low-density polyethylene (LDPE), which provide excellent durability and flexibility.
    Q: Can I customize the sizes, colors, and printing patterns?
    Yes, custom sizes are available ranging from 5 to 70cm, and the thickness can be adjusted from 0.025 to 0.25mm. You can print any color, custom patterns, or text. Free design services are also available based on customer artwork.
    Q: Are these zip lock packaging bags suitable for liquid storage?
    Although these bags feature a tight, leak-proof zipper seal, it is not recommended to use them for packaging liquids. They are primarily designed for solid items, food storage, cosmetics, clothing, and daily necessities.
    Q: What certifications do these packaging bags hold?
    Our products are certified to international standards and hold Export Licenses, ISO, Health Certificates, FORM A, CO, and SGS certifications.
    Q: Are these zip lock bags reusable and environmentally friendly?
    Yes, these bags are designed to be highly durable and reusable. They are environmentally friendly, non-toxic, tasteless, and degradable.
    Q: Can I get free samples before placing an order?
    Yes, samples are available free of charge. However, the shipping costs will be on the customer's side.

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