Core Features
Made from PE raw materials, these bags have a square bottom for stability, allowing them to stand upright after filling. They are widely used in export trade, industrial packaging, food storage, and logistics.
Sizes: Common sizes include 30×45cm, 40×50cm, and 50×60cm.
Functions: The bags offer excellent sealing, effectively blocking moisture and dust, preventing the contents from becoming damp, clumping, or oxidizing. Suitable for long-distance sea freight and warehousing.
Application Scope
Product Advantages
Square bottom design improves space utilization and reduces transportation and warehousing costs.
Suitable for long-distance cross-border transportation, moisture-proof and pressure-resistant, protecting goods intact.
Meets common foreign trade packaging standards and can meet export customs declaration and commodity inspection requirements.
Supports mass production, high cost-performance ratio, and long-term stable supply.
Customization Services
Size Customization: Adaptable to various cartons/drums/ton bags, square bottom for stable standing and convenient filling.
Material Thickness: 3-25 microns available, thickened for increased load-bearing capacity and good sealing.
Printing Customization: Single-color/multi-color printing, supports LOGO, batch number, warning text, and specifications.
Functions: Moisture-proof, dust-proof, anti-static, light-proof, anti-fog, heat-sealable, reinforced edge sealing.
Frequently Asked Questions
Q: What are the applicable scenarios for flat-mouth square-bottom inner film bags?
A: Our customers mostly use these inner film bags for food, hardware, electronic components, powder granules, and chemical raw materials.
Q: What is the difference between these and ordinary flat bags?
A: Our inner film bags have a heat-sealed, square bottom for greater stability and neater packing.
Q: Can it be heated or refrigerated?
A: High-temperature heating is not recommended. Regular refrigeration and freezing are fine.
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