Knowing When To Use A Polyethylene Liner

Posted on - 30th March 2021

Working with sensitive materials and chemical can often create the need to protect the product from even the smallest defects.

Polyethylene liners are useful bag-lining tools used for that purpose across countless industries such as food and pharmaceutical companies. They will be applicable in any job with sensitive bulk materials as a liner for FIBC or bulk bags.

For our latest blog, Centurion Packaging will tell you everything you need to know about polyethylene liners.

Polyethylene Liners Explained

These liners are flexible plastic that is designed to line a bulk bag and add an extra layer of protection for any application. Poly liners will protect your bulk container and the products inside, which is particularly useful to prevent any leaks from occurring plus prevent contaminants such as dust and moisture from seeping inside the containers. Liners also make woven sacks nearly impenetrable in many scenarios just make sure you have the correct size liner that is properly secured at the top once the bag is filled to stop material, moisture and oxygen transfer rate loss.

When Is The Best Time to Use Polyethylene Liners for Bulk Bags?

Bulk containers have individual strands of polypropylene interlaced which creates a durable, lightweight, flexible fabric weave that is useful for the storage and transport of important substances. Without the liner, issues can occur, so here are the instances where is crucial to have a poly liner -

Use of Chemicals - Bulk bags do not last forever, as they are susceptible to natural wear and tear like any other material. Having said this, they are designed with a long lifespan if properly maintained, which is where poly liners come into play. Certain chemicals can speed up bag deterioration with liners protecting against rapid corrosion.

Fine Powder Containment - Fine powders can leak through the body and seams of a bulk container while it’s being filled and manoeuvred. No matter the industry using woven polypropylene sacks, product shrinkage means inaccurate measurements or lost profits. Polyethylene liners keep chemicals and powders safe inside the container until it’s time to get them back out.

Industries with Sensitive Operations - Companies that handle sensitive consumables such as food and certain pharmaceutical products in bulk containers, need to ensure the contents remain entirely pure from start to finish. Poly liners add a strong safeguard to make sure no mistakes are made during production.

Get in Touch With Any Questions

If you have any questions about bulk bags or poly liners, please do not hesitate to contact us today.

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