Multi Layer Structure Plastics Compounds Bags Large Size For Sensitive Industrial Use

This high-performance plastic compounds bag is engineered for industrial bulk storage applications requiring superior barrier protection and mechanical durability. The proprietary PET/AL/PA/PE multi-layer composite structure integrates four functional material layers to optimize preservation, containment, and handling characteristics for sensitive industrial compounds.

• PET Layer (Outer)
  • Composition: Polyethylene Terephthalate (Polyester)
  • Function: Provides structural rigidity, surface abrasion resistance, and printability for identification labeling.
  • Performance: Maintains dimensional stability under mechanical stress (ASTM D638).
• AL Layer (Barrier)
  • Composition: High-purity aluminum foil (≥99.5% Al)
  • Function: Imposes absolute impermeability to oxygen (OTR <0.1 cc/m²/day), water vapor (WVTR <0.1 g/m²/day), and UV radiation (380-780nm).
  • Performance: Meets FDA 21 CFR 175.300 for food contact applications.
• PA Layer (Reinforcement)
  • Composition: Biaxially-oriented Polyamide 6 (Nylon 6)
  • Function: Enhances puncture resistance (ASTM D3787) and tensile strength (≥120 MPa) while maintaining flexibility.
  • Performance: Withstands cyclic loading conditions per ASTM D882.
• PE Layer (Sealing)
  • Composition: Low-Density Polyethylene (LDPE) with heat-sealant co-polymer
  • Function: Enables hermetic sealing at temperatures ≥120°C with peel strength ≥1.5 N/15mm (ASTM F88).
  • Performance: Chemically inert per USP Class VI standards.

• Barrier System: Sequential material selection creates a tortuous diffusion path for contaminants, achieving 10^3* improvement over single-layer alternatives.
• Mechanical Resilience: PA reinforcement layer provides 40% higher puncture resistance compared to non-reinforced structures (ASTM D6891).
• Thermal Performance: Maintains integrity from -40°C to 80°C per ASTM D1922.
• Logistical Efficiency: Extra-large dimensions (customizable up to 2000mm * 1500mm) reduce palletization requirements by 30%.

• Meets ISO 9001:2015 quality management standards
• Complies with FDA 21 CFR 177.1520 for food contact applications
• RoHS 3 compliant for electronics packaging

• High-purity chemical intermediates (pharmaceuticals, electronics-grade solvents)
• Moisture-sensitive powders (pharmaceutical APIs, food additives)
• Light-sensitive compounds (photoresist materials, agrochemicals)
• High-value industrial materials requiring extended shelf life

Technical Support Available
Our materials engineering team can provide:

• Permeation data for specific chemical compounds
• Finite element analysis of bag performance under load
• Customized layer thickness optimization

Contact our technical department for material certifications and application-specific testing protocols.

Partner with us to package your success. Contact us today to discuss your custom packaging requirements and request samples!