PET Chips FIBC

Updated: 2026-07-23

Overview

Polyester chip ton bags, also called Flexible Intermediate Bulk Containers (FIBCs), are engineered for the textile and packaging industries. These 90x90x120cm bags withstand 5:1 safety factor loads, making them ideal for international shipping of polymer raw materials. The standard design includes a laminated PE inner layer to prevent moisture absorption, critical for maintaining polyester chip quality. Modern versions incorporate conductive threads for static dissipation (Type C FIBCs) when handling flammable materials. Their cubic shape optimizes container space utilization, with 20-22 bags fitting in a 20ft container. Custom printing options allow for brand visibility and material tracking throughout the supply chain.

Structure and Working Principle

Constructed from 150-200gsm woven PP fabric, these bags feature tubular lifting loops rated for 2,000kg working load. The bottom discharge spout (typically 45cm diameter) allows controlled material flow, while optional duffle-top closures prevent contamination. The 0.08mm PE liner is heat-welded to create a hermetic seal against humidity. The bag's strength comes from circular weaving technology, creating 10x10 to 14x14 threads per inch mesh. Critical stress points like loops and seams undergo double-stitching with UV-resistant polyester thread. Advanced designs include cross-corner lifting for better weight distribution and collapsible frames for empty bag storage efficiency.

Key Features

1. Moisture Barrier: The laminated liner maintains polyester chip IV value by limiting moisture regain below 0.4% during transit. 2. Anti-static Options: Type D FIBCs with carbon fiber threads safely dissipate charges below 6mJ ignition energy. 3. Logistics Optimization: Stackable design with reinforced base allows 3-high palletization, reducing warehouse footprint. Specialized variants include vented bags for off-gassing applications and FDA-compliant white liners for food-contact PET. UV stabilization additives provide 12-month outdoor storage capability without significant degradation. High-visibility warning strips and multilingual safety symbols enhance workplace compliance.

Application Areas

Primary users include PET bottle manufacturers (60% of demand), polyester fiber producers (30%), and engineering plastic compounders (10%). In the textile industry, they transport semi-dull and bright polyester chips between polymerization plants and spinning facilities. Emerging applications include recycled PET (rPET) flake packaging, where blue-colored bags differentiate post-consumer content. The chemical industry utilizes them for PTA and MEG co-packaging systems. In export markets, UN-certified designs meet IMDG Code requirements for marine transport of polymer materials.

Maintenance and Precautions

Inspect bags for tears before each use, especially around lifting loops. Clean with compressed air—water washing damages the moisture barrier. Store empty bags folded in dry conditions away from rodents. Never exceed the 1,000kg payload limit despite the 5:1 safety factor. For hazardous material transport, ensure proper grounding of Type C/D bags during filling and emptying. Use only undamaged bags for food-grade applications, replacing liners after 3-5 uses. Dispose of worn bags through authorized PP recycling channels to meet environmental regulations.

B2B Procurement Guide

Verify supplier certification (ISO 21898, JIS Z1651) and request material certificates for PP fabric and PE liner. For export markets, confirm compliance with destination country regulations—EU requires REACH SVHC testing, while North America needs FDA 21 CFR compliance statements. Order lead times range from 15-30 days for standard designs, longer for custom sizes or printing. MOQs typically start at 5,000 units, with price breaks at 20,000+ quantities. Consider purchasing 5-10% extra as contingency for transit damage. Sample testing should include 48-hour humidity exposure and dynamic loading tests.