1% UV Additive Nickel Sulfate FIBC Bag With 2% Anti-Static Additive

1% UV Additive Nickel Sulfate FIBC Bag With 2% Anti-Static Additive

Product Description

This nickel sulfate FIBC bag is manufactured with 1% UV additive and 2% anti-static additive in the PP woven material. It is intended for packaging processes involving filling, internal transfer, warehouse storage, and logistics transportation.

The two additives address different operating conditions. The UV additive is associated with sunlight and ultraviolet exposure, while the anti-static additive is associated with electrostatic charge that may develop during powder flow, filling, friction, and discharge. The stated 1% and 2% values are formulation ratios and do not represent a defined outdoor lifetime, surface-resistance value, or electrostatic FIBC classification.

When Is a 1% UV Additive Required?

PP woven material may change gradually when continuously exposed to sunlight and ultraviolet radiation. The 1% UV additive is relevant where the package may experience short or intermittent sunlight exposure, including:

• Temporary waiting in a sheltered outdoor area after filling;
• Movement through outdoor passages between production and storage areas;
• Sunlight exposure during truck or container loading and unloading;
• Storage near warehouse windows or skylights;
• Short exposure to an open environment during transportation.

UV requirements should not be determined only by whether the bag is described as being used indoors or outdoors. Cumulative exposure time, local sunlight conditions, covering method, and storage duration should also be considered.

The specification does not provide a UV-ageing standard, test duration, or strength-retention result. The 1% formulation therefore should not be used to claim a fixed outdoor service life or long-term uncovered storage.

When Is a 2% Anti-Static Additive Required?

Nickel sulfate powder or small particles may generate electrostatic charge through material flow, filling, friction, and discharge. The specified 2% anti-static additive should be evaluated particularly under the following conditions:

• Powder enters the bag through a pipeline, screw conveyor, or gravity system;
• High-speed filling produces continuous friction against the liner;
• The production area has low relative humidity;
• Filled bags undergo frequent movement or contact with conveyor equipment;
• Material flows continuously through the bottom discharge spout;
• The customer specifies electrostatic-control requirements for the package.

The 2% anti-static additive does not by itself establish a Type B, Type C, or Type D classification, and it does not prove suitability for a flammable or explosive environment. IEC 61340-4-4:2018 covers the classification, testing, labelling, and safe use of FIBCs and liners in explosive atmospheres. Finished-bag testing and a site-specific risk assessment are therefore required for combustible dust, flammable vapour, or hazardous-area applications. IEC 61340-4-4:2018

Packaging Conditions and Configurations to Confirm

Main Specifications

Application Conditions

Filling

Before filling, confirm whether the material is supplied as powder, crystals, or granules, together with the filling rate, conveying method, and ambient humidity. Where material flows rapidly through a pipeline, screw conveyor, or filling spout, verify the actual surface resistance and electrostatic test results associated with the 2% anti-static formulation.

The PE liner may also participate in charge accumulation. Its material, thickness, installation method, and performance in combination with the outer bag should be assessed.

Internal Transfer

During movement between conveyors, pallets, forklifts, and production areas, the bag may rub against equipment surfaces. Where the production environment is dry or the package is moved frequently, confirm whether the electrostatic configuration meets the site requirements.

If the transfer route includes an outdoor passage, confirm the actual sunlight exposure time rather than assuming that 1% UV additive permits long-term outdoor use.

Warehouse Storage

For indoor storage, check whether the warehouse contains windows, skylights, strong ultraviolet light sources, or high-temperature areas. Bags stored near natural-light openings may still receive continuous exposure.

The expected storage period should also be documented. For longer storage, confirm UV-ageing data, changes in outer-bag strength, liner condition, and the retention of electrostatic properties under the actual environment.

Logistics and Transportation

Confirm whether the bags will undergo outdoor waiting, port transfer, container transportation, or repeated loading and unloading. Sunlight exposure usually occurs during loading, unloading, and temporary waiting, while electrostatic concerns may arise when the material is discharged or transferred into downstream equipment.

For sea transportation, container humidity and condensation should be assessed separately. UV and anti-static additives do not replace liner closure, moisture-control packaging, or container condensation management.

Five Conditions to Confirm Before Ordering

1. Indoor or Outdoor Use

State whether the package remains indoors or passes through an outdoor filling area, loading platform, port, or temporary storage area. Provide the estimated sunlight exposure period.

2. Expected Storage Period

Confirm the expected time between filling and discharge. Short internal transfer and extended storage involve different UV-ageing, electrostatic-retention, and liner requirements.

3. Powder Filling Method

Specify whether gravity filling, screw conveying, pneumatic conveying, or another method is used. Filling rate, equipment connection, and ambient humidity should also be provided.

4. Anti-Static Requirement

Clarify whether an anti-static additive is sufficient or whether the project requires a specified surface resistance, FIBC electrostatic type, or third-party report. For hazardous areas, provide the area classification and risk-assessment conditions.

5. Transportation and Handling Process

Describe whether the bags are moved by forklift, pallet, conveyor, or lifting equipment and whether the route involves sea freight, port transfer, repeated handling, or outdoor waiting.