Sack Kraft Paper Academy
We all know that choosing the right kraft paper for your customers and their needs is not always easy and the process itself has its own mysteries. It needs a lot of attention and expertise to produce packaging of good quality - a paper sack that can withstand difficulties during storage, transportation and handling. Luckily, you are not alone in this, we are here to share with you our knowledge and expertise through our Mondi Sack Kraft Paper Academy!
The importance of paper properties
Did you know that specific paper properties can affect and improve the quality of your paper sacks? The paper itself can have an impact on your sack, even if the converting part was done flawlessly. Do not forget that the proper storage of the reel is also vital for converting.
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Sack drying time
Tips & tricks on the proper paper reel storage and sack drying after converting.
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De-aeration of the sack
The de-aeration is important for fast filling and efficiency. Learn how this is measured and how the right paper can improve it.
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Mechanical strength of paper
Various paper properties can influence the strength of the paper and 1-ply sack. Understand the important properties to help you choose the right paper.
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Testing methods for paper
Our R&D and Bag Application Centre are at your service for any tests you need. See the available tests we offer.
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Mechanical strength of sack
Paper properties, such as elongation and TEA, can influence the strength of a multi-layer paper sack. Learn what to avoid and how to choose the right paper.
Converting tweaks to improve sack quality
Did you know that some simple tweaks in converting can help you improve the quality of your sacks? Choosing the right valve type, paying attention to your glue type and always doing a quality control might sound as crystal clear, but do not forget that even the smallest action can have a big impact!
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Different perforation types
Under valve perforation, full surface perforation and high porous paper. Learn what is the best solution and how to avoid mistakes in converting.
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Sack construction
Stepped end and flush cut constructions and their differences. Learn how and when to use each construction.
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Valve types
Internal, sealable external and external valves. Learn more about their differences and how to ensure good quality.
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Quality control
Quality control is important. Learn what you should check in every stage of the converting process.
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Gluing in sack production
Starch glue, dispersion and hot melt glue. Learn more about the different types of glue and when to use them.
Our products
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Extensible sack kraft paper
Ad/Vantage High Strength and High Strength Plus are extensible papers with outstanding strength properties and excellent runnability. The high porous qualities Ad/Vantage Select, Ad/Vantage Speed E White and our one-ply solution Ad/Vantage One combines exceptional strength with excellent runnability.
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Flat sack kraft paper
Our Flat Sack Kraft Paper portfolio includes Ad/Vantage Kraft in white and brown grades with fit-for-purpose properties. These grades offer excellent runnability on high-speed converting machines, while their optimal combination of strength and high stiffness is ideal for open mouth bag applications.
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Semi extensible sack kraft paper
Our Semi Extensible range includes Ad/Vantage Semi Extensible in white and brown grades. Ad/Vantage Speed and Ad/Vantage Speed White are high porosity grades for fast and dust-free filling. These grades offer high tensile energy absorption, excellent runnability on high-speed converting lines and selected grades are available in wet strength quality.
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Soluble valve bag
As part of our re/solve portfolio, SolmixBag is our white one-ply bag that dissolves during the mixing process. Drop the closed bag into the mixer, add water and it will integrate with your product.
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