Valve sacks are block-bottomed sacks that come with a practical valve system that facilitates efficient and controlled filling of a dry product, reducing spillage and waste during packaging. Valve sacks are perfect for plastic granules, powders, pigments, compounds, and foodstuffs. In this article, we’ll explain the advantages of valve sacks for easy filling and handling.
Polythene valve sacks feature a unique automated valve closure mechanism that provides a secure seal for the product that is initiated by the internal pressure of the product within the sack. This design safeguards your contents from moisture ingress, dust, and contamination throughout the supply chain process, so that they arrive with your customer in perfect condition. The automatic self-sealing mechanism of valve sacks means that once the sack is filled, the valve closes automatically, creating an airtight seal that maintains the integrity of the goods. The valve can be internal or feature an external tuck-in section.
One of the benefits of using valve sacks for dry goods – especially polythene valve sacks – is their superb moisture resistance. This is essential for hydro-sensitive products, such as cement, that are transported in open top lorries or stored outside while awaiting use. By keeping rain, moisture, and humidity out, valve sacks prolong the shelf life of the product and avoid damage.
Valve sacks also provide a barrier against dust and biological contaminants, which is critical for industries where product purity is essential, such as agriculture, chemical processing, food processing, and pharmaceuticals. The valve seal keeps the product pristine during transportation and storage, sustaining the highest standards of safety and quality.
Conventional packaging methods usually require additional sealing equipment to secure the contents of the bag, which can be labour-intensive and costly. Valve sacks streamline and simplify the packaging process, saving time, space, and money in the pack house.
Bulk valve sacks are designed with ease of handling in mind, and are typically lighter and more flexible than other FIBC bags. This makes them easier and safer to manoeuvre manually, or by machine, during the filling, handling, and transportation chain. This reduces the physical strain on your employees and customers, and minimises the risk of injury.
The uniform shape and size of most valve sacks makes them easy to manage during transportation and in the warehouse. Whether stacked directly on warehouse shelves or secured onto pallets, valve sacks can be neatly stacked without the risk of toppling over, leading to better storage efficiency and warehouse organisation.
Many modern valve sacks are manufactured from sustainable materials, with recycled paper valve sacks now available with similar strength and performance characteristics to their polythene equivalents. The efficient design of valve sacks also minimises waste material during the packaging process. With no requirement for additional materials (e.g. ties, straps, or staples) to secure and sealing your bags, valve sacks offer a complete solution with minimal waste – benefiting the environment and reducing your packaging costs.
To find out more about our range of valve sacks and packaging solutions, please get in touch with the team at Cliffe Packaging today by clicking here.
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