Custom-Designed Nickel Sulfate FIBC Bag With Tailored Spouts PE Liner And Printing

FIBC Customization Starts with Packaging-Process Requirements

Customizing a nickel sulfate FIBC involves more than changing its dimensions or printed artwork. The structure should be determined by the customer’s filling equipment, material condition, storage environment, handling method, and target filling volume.

The basic requirement-to-configuration relationship is:

• Different filling equipment → adjust the filling spout;
• Different material-protection requirements → adjust the PE liner;
• Different storage and batch-identification requirements → adjust the printing;
• Different handling methods → adjust the lifting loops;
• Different filling volumes → adjust the bag dimensions.

The current 93 × 93 × 105 cm configuration with a specified 1000 kg load can be used as a reference. The final design should be confirmed against the customer’s operating conditions.

1. Customize the Filling Spout for the Equipment

The current configuration uses a Ø45 × 60 cm top filling spout with a 25 cm tie. It is intended for packaging processes where a flexible spout is fitted over a filling pipe or material outlet.

The following information is needed:

• Outside diameter of the equipment outlet;
• Required overlap length;
• Gravity, screw, pneumatic, or another filling method;
• Target filling rate;
• Venting or dust-extraction requirement;
• Tie, clamp, heat seal, or another closing method;
• Separate equipment connection for the PE liner.

The filling-spout diameter and length can be adjusted to the equipment interface. Where more controlled dust containment is required, an enclosed connection should also be considered rather than relying only on a longer spout.

2. Customize the PE Liner for Material Protection

The current bag contains a 200 × 340 cm PE liner with an approximate thickness of 90 μm. It works with the 180 g/m² externally coated body to create an outer structural layer and an inner material-isolation layer.

Liner requirements should be based on:

• Powder, crystalline, or granular material condition;
• Particle size and flowability;
• Sensitivity to environmental humidity;
• Friction against the liner during filling and discharge;
• Tying, heat sealing, or another closing method;
• Defined moisture-barrier, cleanliness, or electrostatic requirements;
• Connection of the liner to the filling and discharge spouts.

Liner thickness alone does not define the moisture performance of the complete package. Extended storage, sea transportation, or high-humidity conditions also require confirmation of closure integrity and packaging validation.

3. Customize Printing for Storage and Batch Identification

The current configuration supports one-side, three-color printing and includes an external document pocket and production-information label. For nickel sulfate packaging, printing can support both brand identification and warehouse traceability.

Printing details may include:

• Company name and logo;
• Product name;
• Batch number;
• Net weight and packaging specification;
• Production date;
• Handling and storage marks;
• Customer-specified colors;
• Barcode or QR-code position;
• Front, back, or side printing area;
• Document-pocket and label position.

Artwork, color references, text direction, and bag orientation should be approved before production. The printed information should remain visible after filling and should not be obscured by lifting loops, folds, or pallets.

Dangerous-goods labels, electrostatic FIBC markings, or regulated transportation marks should only be applied when supported by the relevant classification, certification, and test results.

4. Customize the Lifting Loops for the Handling Method

The current bag uses four 7 cm wide cross-bottom lifting belts positioned along the corners, with an approximately 45 cm loop height. This structure is intended for processes using four lifting points.

Confirm:

• Forklift, hook, lifting beam, or another handling method;
• Fork width and spacing;
• Whether all four loops can be engaged simultaneously;
• Required loop height;
• Whether cross-bottom belts are required;
• Interaction between the lifting belts and discharge spout;
• Expected transfer frequency;
• Restricted aisles or lifting clearance.

The lifting-loop configuration should be evaluated together with bag dimensions, specified load, bottom construction, and handling equipment. The current production sheet does not state a separate belt breaking-strength value, so lifting performance should not be inferred from the 7 cm belt width alone.

5. Customize Bag Dimensions for the Filling Volume

The required bag dimensions should be determined from the target filling weight and material bulk density:

The current finished dimensions are 93 × 93 × 105 cm, with a specified load of 1000 kg. Powder, crystals, and different particle-size distributions may require different effective volumes for the same target weight.

Dimension customization should also consider:

• Required filling headspace;
• Lateral expansion after filling;
• Pallet length and width;
• Warehouse vertical clearance;
• Filling-equipment outlet height;
• Truck or container internal dimensions;
• Side-by-side placement;
• Possible interference between the pallet and discharge spout.

Final dimensions should be confirmed using material data, a structural drawing, and an actual filling sample where necessary.

Requirement-to-Configuration Mapping

Reference Configuration

Custom Development Process

Requirement Collection

The customer provides material properties, target weight, equipment-interface dimensions, pallet size, storage conditions, and transportation information. Defined moisture or electrostatic requirements should include target performance or test criteria.

Structural Matching

The bag volume is determined from material bulk density, followed by selection of the filling and discharge spouts, liner, lifting belts, coating, and printing structure.

Drawing and Sample Approval

Confirm the dimensional drawing, spout direction, lifting-belt position, artwork, and label location. A sample bag can be produced for equipment connection and trial filling where required.

Testing and Revision

Fabric, seams, lifting belts, and finished-bag testing should be confirmed according to the order. Issues identified during interface or filling trials should be corrected before mass production.

Mass Production

Production begins after the drawing, sample, and artwork have been approved. Dimensions, structure, printing, and packing method are inspected against the final order specification.

Custom Requirement Checklist

Before requesting a quotation, provide:

• Nickel sulfate form, particle size, bulk density, and moisture condition;
• Target net weight and permitted tolerance;
• Filling-equipment outlet diameter and installation height;
• Filling rate and dust-control method;
• Downstream-equipment inlet size and discharge method;
• Pallet and warehouse-position dimensions;
• Forklift-fork dimensions and lifting method;
• Expected storage environment and duration;
• Transportation method and transfer frequency;
• PE-liner thickness and closure requirements;
• Printing colors, content, and batch-identification format;
• Required testing or certification.