Woven polypropylene is a remarkable material with exceptional strength and flexibility, which is why it’s the material of choice for bulk bags. However, some products need additional protection from moisture, air and light. Foil inner liners – the gold standard for the best possible product protection – are the perfect addition to bulk bags.
These specialised liners offer a complete seal; a high-protection barrier that will keep materials in perfect condition from the time they are placed in the bulk bag until they arrive at their destination. Their ability to be customised to fit any bulk bag shape or size is what gives them their versatility and makes them an ideal choice for a variety of applications and industries.
Custom Bulk Bags (CBB) is a leading manufacturer and supplier of FIBCs in South Africa. We produce 3.5 million bulk bags a year – all of which can safely hold between 500kg and 2000kg each. Our products are used by various industries to store and transport a range of materials in bulk volumes.
The production of foil liners
Foil liners are more than just a sheet of aluminium. They are an advanced packaging solution made up of several layers. They have a thin layer of aluminium foil at their centre, which is encased in different plastic polymer films, like nylon (PA) or polyethylene (PE). The liner’s barrier qualities are a result of its multi-layered design.
Each liner is an impermeable barrier to moisture, light and air. The aluminium foil serves as the main barrier, while the plastic layers offer strength, flexibility, and resistance to punctures. This guarantees that your products are totally sealed off from the outside world. This physical structure creates several concrete advantages, each with a vital practical use:
1. The best barrier against moisture – A foil liner forms an almost flawless barrier against water vapour. For hygroscopic materials – items that easily collect moisture from the air – this is vital. To stop caking, clumping, and deterioration, industries that handle dairy powders, fine chemicals, and agricultural products can use foil liners. The foil liner guarantees that the substance retains its chemical composition, flowability, and consistency by keeping moisture out.
2. The best light and oxygen barrier – Certain items may oxidise, deteriorate, or lose their efficacy when exposed to oxygen and ultraviolet (UV) light. This is especially true for foods, nutrients, and chemicals that are sensitive to light. The liner’s aluminium coating keeps the contents from deteriorating in the sun or reacting with the surrounding air. For goods that are stored outside or exposed to different light levels while in transit, this function is priceless.
3. Improved management of cross-contamination – Cross-contamination must be avoided when working with food-grade or agri-grade items. A foil liner’s hermetically sealed construction guarantees that the product is totally sealed off from the outside world. This offers a sterile, clean inside container that keeps the product free of contaminants, including bacteria, particulates, and undesirable odours. Strict food safety and legal compliance requirements require this degree of protection.
4. Long-term storage with an extended shelf life – Foil liners offer a considerably longer shelf life as they keep out light, oxygen, and moisture. This is especially advantageous for expensive powdered goods or anything that must be kept in storage for a long time. In the long term, foil liners are a cost-effective option since they minimise waste and protect a business’s bottom line by maintaining the product’s freshness, potency, and physical qualities.
5. Adaptability to any type of bulk bag – Foil liners aren’t a universally applicable option. From simple square-bottom FIBCs to more intricate designs with spouts or baffles, they can be completely tailored to meet any bulk bag size or form. This guarantees that the liner fits the bag precisely, removing any wrinkles or folds that can weaken the barrier or trap product. Maximum product protection, a snug fit, and ease of filling and discharging are all guaranteed by this customisation.
Custom Bulk Bags is your go-to source for the best product security
To stand out in the marketplace and to remain competitive, you need to make sure your products are safe and protected. CBB is aware that our clients often need more than a simple bulk bag for their operations. Being a well-known supplier in South Africa, we are committed to providing complete bulk packaging solutions with various inner liners.
We can assist you in giving your products this extra layer of protection throughout storage and transportation, guaranteeing that they reach their destination undamaged. Our foil liners help you protect your goods and your brand reputation. Please contact us today for more information about our bulk bags or to get a free consultation.
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Custom Bulk Bags is a major South African manufacturer of woven polypropylene bags for various industries, including mining, chemicals and agriculture. We are a Level 2 B-BBEE supplier that falls under the ownership structure of Deneb Investments Limited. For more information on our products, contact sales@custombulkbags.co.za.
