FIBC Customization

Opening Structure

Structure	Open Top	Spout Top	Filling/Discharge Spout
Specification	Inlet size is determined by bag dimensions/Customizable	Length: 1000MM/Customizable	Diameter: 500MM/Customizable
Structural Features	Full-top spout, a large-area opening with reinforced edges	Top-sewn fill spout with identical circumference, featuring large opening area and drawstring closure	Circular top fill spout with drawstring seal, optionally covered by square flap
Characteristics	Full-top spout with maximized opening area increases filling speed by 50%+, but offers poor dust containment, non-stackable, and risks material spillage	Fast-fill spout with dust skirt reduces particle leakage rate. stackable, compatible with most filling systems, yet has weaker seal integrity	Restricted-diameter spout ensures excellent seal (leak-proof and deformation-resistant), allows multi-layer stacking, but limits material flow rate due to narrower inlet
Applications	Open-top bulk bag with reinforced lifting loops, designed for bulk loading of construction aggregates (sand/gravel), scrap metals, or sanitizable-grade bags for pharmaceutical/food industries	Sealed bulk bag with dust-proof liner and sift-proof seams, suitable for cement, talcum powder, or contamination-sensitive materials (precious metal powders, electronic-grade silicon)	Bottom-discharge bulk bag with spout fitment , optimized for automated filling systems and high-precision unloading of leak-sensitive materials

Inner Structure of the Bag

Structure	Baffle	PE Liner	Aluminum foil liner
Specification	Size is determined by bag dimensions/Customizable	Size is determined by bag dimensions/Customizable	Size is determined by bag dimensions/Customizable
Structural Features	Longitudinal baffles symmetrically positioned at four inner corners, with multiple elongated slots (3+ openings per baffle) for material flow control	PE liner adopts a bag-type configuration precisely matching the Bulk bag’s outer woven PP bag profile. it ensures complete wall contact post-filling	Top-fill spout design facilitates material loading, while the optional bottom discharge outlet integrates leak-proof seals (e.g., butterfly valve/duffle flap) for closed-state
Characteristics	Internal baffles significantly enhance FIBC structural integrity, preventing over-deformation under internal pressure during loading. This facilitates compact stacking in transport/storage, improving space utilization and reducing logistics costs. Requires additional PP/PE materials ,may restrict material flow during filling	Excellent flexibility and low-temperature resistance. Chemically inert to most acids/alkalis, lower cost than foil liners. Poor barrier properties compared to Aluminum foil; High thermal deformation risk	Provides 100% oxygen/light barrier and microbial protection, extending shelf life. Stable performance from low to high temperature. Prone to puncture. Vulnerable to acid/alkali corrosion. Higher production cost than PE liners."
Applications	Baffle-reinforced bulk bags with cubic design maintain structural integrity for heavy and high-density materials, ideal for multi-layer stacking and long-haul transport with safety factors	Food-grade bulk bags with PE liners protect grains/powders from moisture and contamination, featuring sift-proof seams for flour/starch/non-hygroscopic chemicals offering cost-effective moisture protection	Comparable to PE liners but suitable for materials requiring higher sealing performance

Other Structures

PE Coating (Customizable)

PE lamination process applies polyethylene resin through extrusion coating equipment to uniformly cover the bulk bag fabric surface.
Key benefits include: Enhanced waterproofing; Moisture barrier protection for hygroscopic materials like grains/chemicals; Increased tensile strength and Abrasion resistance; Smooth surface with lower material residue.
Leak-Proof Fiber Tape

The leak-proof fiber tape for bulk bags are made of specially processed high-absorbency fiber materials, featuring soft texture and excellent elasticity. These strips are typically installed at vulnerable leakage points such as seams and opening edges of the bulk bags.
Key functions include:
Leakage prevention: Effectively containing materials to ensure safety and cleanliness during transportation/storage
Structural reinforcement: Strengthening weak areas to enhance overall sealing and durability
Risk reduction: Minimizing cargo loss and environmental contamination risks compared to non-reinforced bags
Label Printing

We can customize labels in various colors according to your requirements. The printed textures remain sharp, and the quality withstands frequent loading/unloading operations.
Document Pocket Variants

Available configurations: Sewn-in document pouch; Flip-top weatherproof pocket; Hermetic seal pocket.

Summary of Product Models

The diagram above presents the reference for our standard FIBC (Flexible Intermediate Bulk Container) models (e.g., the UQ-1, UB-1 series, etc.). If you already have a long - term used model or specific fixed structural requirements, please feel free to let us know directly. For those seeking customized solutions tailored to specific application scenarios (such as loading/unloading methods, load - bearing requirements, space adaptation, etc.), we can provide exclusive customization services based on your needs — covering structural design, raw material selection, and production process — to help achieve efficient adaptation for your application scenarios.

Summary Table of Product Customization

Product name	FIBC/Bulk Bag/Jumbo Bag/Ton Bag/Big Bag
Main Material	virgin PP granules
Bag Types	U-panel / Square / Circular / Anti-static FIBC
Colors	White / Black / Yellow / Customized
Dimension	110110120CM/Customized
Filling Spout	Full open-top / Filling skirt spout/ Filling spout
Bottom	Flat bottom / Cross bottom lift loops / # style bottom lift loops / Discharge spout
Lifting Loop	Semi-loops / Right-angle 4-loop / Cross-over 4-loop / Double cross loops
Lifting Band	No lifting band / Single band / Double bands / Triple bands
G.W.	1KG-6KG (Customizable)
PE coating/ Liner	Uncoated / PE coating / PE liner / Aluminum foil liner / Leak-proof fiber tape
SWL	500KG-800KG
Label/Printing	logo printing customized (5-color process: Red, Green, Yellow, Blue, Black)
Document Pocket	Open-top pouch / Sealable document pouch
MOQ	5000pcs
Production Capacity	3million pcs/month
Delivery Time	7-30 days after deposit
Samples	1 free sample (shipping excluded)

Product Advantages

Premium Raw Materials

We exclusively choose virgin high-quality polypropylene (PP) as base material, the exceptional properties form the foundation for superior bulk bag performance.
High-Tensile Drawstrings

Our drawstrings feature enhanced strength and abrasion resistance, ensuring durability under frequent loading/unloading operations without breakage.
Durable Loops

From material selection, we meticulously choose high-strength, high-toughness premium fiber materials to ensure each loop possesses exceptional load-bearing capacity, providing solid protection for cargo transportation safety.
Weaving Precision

Utilizing advanced precision circular weaving equipment, we achieve an extremely fine weave with uniform and regular fabric texture. Every inch of the fabric surface shows unparalleled refined texture.
Stitching Quality

With a team of experienced sewing workers, our stitches are dense and even, with precise needle spacing control. This not only enhances the overall strength of loops but also demonstrates unmatched craftsmanship.

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Yantai Hengchang Packaging Co., Ltd.