Industry Pain Points Solved 1. Sealing & Material Loss: Traditional ton bags with loose liner bags are prone to liner shifting, edge gaps and poor heat sealing during lifting, stacking and transportation, causing fine powder leakage, material waste and on-site dust pollution, which fails to meet clean production standards. 2. Avoid Moisture & Contamination Risks: Ordinary liners have weak barrier performance. Humid air, rainwater and external impurities easily penetrate the bag body during warehousing and transit, leading to material damp deterioration, agglomeration and quality depreciation, especially harmful for chemical, food and mineral raw materials. 3. Operational Efficiency: Separate inner bags require manual alignment, nesting and fixing, which is time-consuming and labor-intensive. The loose liner is easy to fold and bulge during filling, affecting loading capacity and automatic filling efficiency, restricting factory packaging throughput. 4. Durability & Safety Hazards: Conventional inner liners are thin and low-toughness, easy to be punctured by woven bag texture or sharp materials. Broken liners cause sudden material leakage during handling, bringing potential safety risks and logistics accidents.   Core Selling Points 1. Integrated Formed Liner, Zero Displacement & Leak-proof: Adopts one-piece integral forming process with no splicing gaps. The inner film closely fits the outer woven bag, effectively avoiding liner sliding, wrinkling and falling off. It achieves 100% anti-leakage for fine powder and ultra-fine particles, eliminating material loss and dust pollution. 2. High Barrier & Moisture-proof Performance: Made of high-density thickened PE inner film with excellent water-proof, moisture-proof and anti-oxidation properties. It isolates external moisture, air and dirt thoroughly, keeping packed materials dry, clean and stable in chemical properties, greatly extending material storage life. 3. Time & Labor Saving, High Efficiency: Integrated inner and outer bag design requires no manual lining nesting. It supports fully automatic filling and quick loading, greatly shortening packaging time, reducing labor costs and improving overall production and logistics efficiency. 4. Superior Toughness & Puncture Resistance: The formed inner film features uniform thickness, high tensile strength and strong tear resistance. It withstands extrusion, friction and sharp particle piercing during stacking, lifting and long-distance transportation, ensuring intact packaging and safe cargo handling. 5. Customizable & Wide Compatibility: Supports customized size, load capacity (500kg–2000kg), spout top/bottom discharge and UV-resistant treatment. Applicable for chemicals, minerals, grain, feed, building materials and other bulk materials, meeting diverse industrial packaging and logistics scenarios. 6. Cost-effective & Eco-friendly: Durable structure allows repeated use after cleaning, reducing long-term packaging costs. The materials comply with international environmental and safety standards, with low pollution and high recyclability, fitting green industrial development requirements.