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As various global markets continue to evolve, the packaging industry needs to stay ahead of the curve. This means that the bulk bag sector has needed to remain innovative in order to cater to the changing needs of customers. Custom Bulk Bags (CBB) is a leading manufacturer and supplier of bulk bags in South Africa. 

We design and produce a wide range of these products for various industries, including mining, agriculture and chemicals. Our bulk bags are highly-tailored to suit your specific needs, so we hold a thorough consultation with prospective customers before starting production to ensure that we deliver the most innovative bulk bags possible.

Most people may think that bulk bags are simple products that require little-to-no change at all. However, over the years, these products have been continually refined to deliver more benefits, such as increased load capability, safety, flexibility and sustainability. Here are several recent innovations in the bulk bag industry.

What you need to know before approaching a bulk bag supplier

Innovations in the manufacturing facilities

Firstly, a groundbreaking design is only possible if the machinery and equipment are able to successfully produce the bulk bag. While automated machinery speeds up processes and ensures better precision, there is still no replacement for manual inspection and quality control. CBB adheres to a strict quality control process to ensure that all bulk bags meet international standards for quality, production and safety.

We keep our manufacturing facility clean and up-to-date, which not only improves standards but also safety for employees who work there. These simple processes are highly important for ethical and safe practices. CBB uses tried-and-tested production methods that guarantee durable and capable bulk bags are delivered to the customer.

Innovations in bag materials and design

Bulk bags are normally made from woven polypropylene fabric, which is extremely lightweight, durable and flexible. However, it sometimes needs to undergo additional processes to give the fabric additional properties, such as water resistance, flame retardation and UV protection.

These qualities come from specific chemicals that are sprayed onto the fabric or mixed into the polypropylene resin during the early stages of production. Depending on the needs of the customer and their storage facilities, these qualities can elongate the shelf life of products and ensure that there is no wastage during shipping and storage.

When storing dry materials, such as powders or grains, you need to ensure that moisture cannot enter the bag and spoil the product within. This is especially important in humid regions or during the rainy season. Splash-proofing is highly recommended in these instances. Similarly, if your product is flammable or being stored in really hot and dry conditions, then flame retardant fabric is necessary.

If you store your bulk bags in direct sunlight, it can slowly degrade the polypropylene fabric and make it brittle. This is a serious safety concern, so consider ordering bulk bags with UV protection added. Speak to your bulk bag supplier about the various options available that will enhance the storage process and extend the shelf life of both products and bulk bags.

How do you know if a bulk bag has been tampered with?

Innovations in security and sustainability

Security is a major concern in the logistics industry. How can you ensure that your products remain safe during transport and storage? Luckily, bulk bags can be ordered with tamper-proof seals and attachments. Some of these designs prevent the bags from being opened during shipping while others simply let you know if your materials have been tampered with en route. 

As with most industries, sustainability is a growing practice in the bulk bag sector. Fortunately, bulk bags are already recyclable since they are made from plastic. CBB aims to further enhance sustainability by reducing waste as far as possible. Offcuts from the manufacturing process are sent back to the extrusion facility where they are turned into polypropylene tapes once again.

CBB encourages customers to reuse their bulk bags, as long as they are closely inspected before being filled. If there are any loose threads or signs of strain on the lifting loops or fabric walls, then the bag will need to be recycled. Feel free to consult with one of our experts to get additional guidance on use. For more information about our bulk bags, please contact us today. 


Custom Bulk Bags is a leading South African manufacturer of woven polypropylene bags for various industries, such as mining, chemicals and food. We are able to produce over 3.5-million bulk bags per year, keeping our customers in stock at all times. Our bags adhere to the highest levels of quality as a result of our stringent in-house testing and quality control programmes.

Custom Bulk Bags holds ISO 9001 certification and we currently have a number of UN-certified designs. We are a Level 3 B-BBEE manufacturer and supplier and fall under the ownership structure of Deneb Investments Limited. For more information on our products, contact Follow us on Facebook for our latest news and industry insights.