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Table of Content
Milk Powder Packaging: Why It’s Important & What You Should Know
The Best Milk Powder Packaging Solutions
How to Evaluate the “Best” Packaging Solution for Your Needs
Making Informed Packaging Decisions
Milk powder’s interaction with air means that careful handling and appropriate storage are key to maintaining its freshness and taste.
This is exactly why systems like a milk powder packaging machine and other solutions matter so much. By design, milk powder packaging helps to preserve the quality of the powder and ensure that it maintains its integrity.
In this article, we’ll look into some of the most reliable milk powder packaging solutions as well as how best to work with them.
Milk powder may seem straightforward to handle at first. However, its chemical and physical properties make it quite sensitive to many things - including and especially environmental solutions.
This means that without the right milk powder packaging process, it would be impossible to maintain the quality of the product overall. In time, the milk powder spoils and won’t be able to last long.
Before looking into the right methods for packaging of milk powder, let’s understand the sensitivities of this product.
Milk powder is known to be hygroscopic. This means that the material quickly absorbs moisture from around it.
In fact, even the smallest amounts of moisture will cause the milk powder material to clump and cake. Free-flowing properties eventually erode, making the powder very challenging to handle overall.
Contact with oxygen can cause milk powder to oxidize. This is especially true for powders with a high content of fats. As oxidation occurs, the powder’s flavor is lost, and even its nutrients degrade. The powder loses its freshness, meaning that proper packaging needs to be added to the milk powder end production line if you hope to transport it over long distances.
Like many other products, extreme and frequent exposure to temperature swings can cause milk powder to condensate - even inside packaging products.
For a lot of people, proper milk powder packaging is just about the containment. But, it’s much more than that. From choosing a milk powder packaging machine to selecting the right milk powder packaging bag, the entire process comes with several objectives - including:
Product Protection and Integrity
It’s important to protect the powder from exposure to environmental elements to preserve its taste, quality, and nutrients.
Shelf-Life Extension
Ideal packaging also focuses on maintaining the stability of the milk powder over time. It does this by limiting exposure to the elements and heat.
Food Safety and Contamination Prevention
Even the most basic milk powder packaging bag options provide a clean barrier that cuts down on the risk of microbial contamination and ensures compliance with laws.
Ease of Transportation and Storage
Your milk powder packaging line supports proper stacking, handling, and transportation across supply chains, ensuring that manufacturers can meet their customers’ needs.
Convenience for End Users
Everyone wants to be safe and convenient. By engaging the right milk powder packaging line, you’re able to address the concerns of both industrial and retail customers.
Now that we have a good intro to milk powder packaging and what it aims to achieve, let’s examine some of the most prominent solutions available for the packaging of milk powder today.
When you look into most industrial dairy supply chains - those across Europe, Asia, and North America, particularly - you’ll find that most bulk powdered milk products are packaged using multi-wall kraft paper bags that come with an inner polyethylene (PE) liner.
Without a doubt, these are the most prominent options for anyone looking to get a milk powder packaging bag. And, there are several reasons for this.
Multi-wall kraft paper bags are built using different layers of solid kraft paper that deliver impressive strength, durability, and an ability to resist tearing.
The process used to make these papers leaves you with long, sturdy fibers that can easily support heavy loads - anywhere between 20 and 25 kg for industrial milk powder sacks. Thanks to this structural integrity, these bags are ideal in environments where bulk bags are:
Transported across warehouses
Stacked and loaded on pallets
Moved across long distances
While the kraft paper optimizes strength, we all know that paper alone doesn’t do well against oxygen or moisture. This is why the inner PE liner is so important.
Polyethylene liners can bolster the bag’s resistance to humidity and moisture, preventing the powder from spoiling or caking.
The liner also prevents oxygen entry, allowing the powder to stay nutritious and last long.
This intricate combination of Kraft’s strength and PE’s barrier protection allows you to get the most out of your milk powder packaging bag.
In areas like Europe and North America, packaging materials that come in contact with food need to meet some strong safety requirements.
With a food-grade inner liner and a kraft paper bag, manufacturers can comply with these standards while still combining material benefits to create the right packaging fit.
Compared to several other packaging materials, kraft paper bags are relatively affordable, light, and easier to produce. This makes them very economical, especially for high-volume industrial use.
The bags can be made with:
Valve closures for quick and automated filling
Printable surfaces where you can add branding and other information
Block or square bottoms for stability in stacking
Multi-wall kraft paper outer bags are a more sustainable choice because kraft paper is made from renewable resources and is widely recyclable in many markets. Using paper as the main outer structure reduces reliance on plastic and can lower the overall environmental footprint compared with fully plastic packaging. The strong kraft construction also helps prevent tearing and product loss during transport, which reduces waste across the supply chain.
It’d be impossible to mention packaging solutions without shedding light on a milk powder packaging machine. And when it comes to these tools, the FBP-3W pinch bag sealer machine is in a league of its own.
Here, we have a machine capable of top-edge folding, pinching, heating, and sealing. With an AC 380/50 voltage and 7.5 KW in gross power output, the machine adopts photoelectric combined technology, allowing you to program it and automatically finish multiple packaging processes.
The FBP-3W milk powder packaging machine is also very efficient, with a sealing mechanism that ensures a sift-proof build and very strong closures. A 0.6 MPa rating for air pressure and 3500×950×1800 mm in external dimensions ensures that you get a moisture-proof, dust-proof, and mold-free packaging that removes the risk of contamination for your milk powder.
As an added bonus, this milk powder packaging machine actually works very well with kraft paper bags and other packaging options that come with inner PE films. It works by first sealing the inner bag, then folding the bag opening to a 90-degree angle. Once done, the bag is heated, the pinching and sealing processes are carried out.
Another impressive option among milk powder packaging machines, the FBC-2/2D packaging machine is an automatic paper-plastic compound bag machine that is mostly used in packaging 10-50KG milk powder.
The machine comes with a conveyor that allows you to seamlessly integrate it into different milk powder end production line sequences. From there, you can easily automate your packaging process and improve its efficiency. For milk powder export or local production, this machine optimizes processes significantly.
The FBC-2/2D boasts between 5.5 and 6.5 KW of power, depending on the option you choose. You also get 4.5 KW in heating power, a temperature range of 0.400 ℃, and 0.6 Mpa in air pressure. As for compatibility, the machines work with kraft milk powder packaging paper bag types, as well as paper-plastic composite bags and paper-plastic woven composites with inner PE linings.
The open-mouth bagging machine is an industrial packaging tool that allows you to fill pre-made bags that have an open top with your milk powder. Once the filling is done, the bag is sealed and closed with a separate closing system.
With the right open-mouth bagging machine, you will be able to work with multi-wall kraft paper bags, woven polypropylene bags, and even plastic bags. They’re reliable milk powder packaging machine options because they work well with heavy bags (anything between 20 and 25 kg), are comparable with paper-based packaging, and are very accurate with filling.
Finally, we have the palletizer. Unlike most of the other machines we’ve covered, the palletizer works at the end of the packaging line. Its job is to automatically stack bags, cartons, and cases onto pallets in a stable, preset pattern.
For your cartons and milk powder packaging paper bag options, a palletizer significantly improves efficiency and consistency in high-volume production environments. You can choose between conventional palletizers that stack products one layer at a time, or robotic palletizers that work with robotic arms to pick and place items.
For milk production, palletizers mostly come in after bag filling and sealing. However, in some cases, you can use them after metal detection and weight checks.
So, we’re now aware of the best milk powder packaging solutions available. But, at this point, you probably know that there’s no universal solution that works for everything.
At the end of the day, the “best” solution for packaging of milk powder will depend on several factors - from the characteristics of your powder product to your objectives and the conditions of your operation.
Today, there are different characteristics of milk powders. You have products that vary in usage, composition, and application requirements. There are also differences in ideal storage conditions, fat content, handling processes, and more, all of which have massive effects on packaging performance needs.
Add all of this to the fact that regulatory requirements vary based on environment, and you’ll find that being intentional with your milk powder packaging line is critical. Whether it’s the choice of a milk powder packaging machine or a milk powder packaging bag, you need to tailor your choices to your priorities.
As we mentioned, different milk powder types need their own custom packaging options.
For instance, whole and skimmed milk powders have different sensitivities to oxidation. On the other hand, we all know that baby formula needs to follow very strong hygiene and safety standards.
If you’re working with industrial-use milk powder, then you need to focus on bulk handling efficiency. But, for consumer milk products, manufacturers tend to focus on aesthetics and usability.
Your packaging option needs to align with where and how you intend to sell the milk powder. By understanding the right conditions, you can maintain the right performance.
How long do you want your milk powder to last? You will need to seriously consider this in developing your packaging solutions.
For instance, if you want customers to be able to store your milk powder for long, you need to ensure that your milk powder packaging bag can withstand environmental factors. On the other hand, short-cycle products can allow for some trade-offs on the performance side.
We’re seeing an increasing influence of environmental considerations on packaging decisions. This means that companies need to consider their sustainability objectives as well as their need to maintain product quality and safety from production to consumption.
We should also mention that your choice of a milk powder packaging solution needs to be supported by proper testing and data validation. Conduct lab tests, pilot runs, and trials to help confirm that your packaging solutions meet your needs and can perform under the most extreme conditions.
This way, you’re able to reduce risk, preserve the quality of your products, and show compliance with appropriate laws. At the end of the day, the “best” milk powder packaging solutions will require a holistic view that considers all important factors.
Due to the nature of the product, there are several important factors that you need to consider when choosing your packaging solutions for milk powder. However, we’d always recommend focusing on preserving the quality of the product, making it safe and reliable for consumers, and following all regulations.
To learn more about the best packaging solutions for milk powder, feel free to reach out to us at Hualian Machinery. We’ll be more than happy to help you out.
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