How to Examine a Mail Bag

How to Examine a Mail Bag


  1. Edges

A common occurrence in mailbags is the edges splitting when packing goods. This can interfere with the packing process and ultimately creates additional costs and waste.

With our mailing bags, in the sealing and cutting process of the production line, our machines use an extremely hot blade that melts the polythene film whilst simultaneously cutting and securely sealing the mailing bag in reference to its size.

With this you can be ensured that your product will not fall out the bag during transit resulting in lost property and unsatisfied consumers.


TO TEST: Attempt to tear the bag from the edge, gradually increasing the strength in order to test the resistance.


  1. Odour/Smell


A common complaint is an unpleasant odour that a mailing bag gives off, especially for people who sell clothing. Polythene is made from polymer pellets, melted to high temperature and blown into moulded polythene film. The problem occurs with mailbags made from recycled materials that are not contaminants free, thus the unpleasant odour.

Our mailbags are aimed to reduce this unpleasant odour by using recycled material that is contaminate free. Because the bags are melted, there is still a possible chance that there may be a slight odour, but nothing that is unpleasant on the nose such as a smoky burnt smell.


TO TEST: Smell the bag internally and externally.


  1. Glue Stickiness


The adhesive strip on a mailbag can also be a significant issue that affects the efficiency of packaging. Some users may choose to use tape to secure their parcels as they may be concerned about the security of the goods inside. However, this in turn can increase expenses with the need to use tape to pack goods.


With our mail bags we can ensure once the self-adhesive strip is peeled, sealed and settled, the bag is permanently closed and concealed; requiring the bag to be ripped in order to attain the goods. This reduces the cost of purchasing extra tape and increases the speed, efficiency and productivity. We recommend storing the bags 13-21°C for optimum performance.


TO TEST: Simply peel off the self-adhesive strip off and seal the bag. Begin to attempt opening the bag from the lip until it tears to test adhesive strength.


SR Mailing | Sustainable eCommerce Packaging
SR Mailing | Sustainable eCommerce Packaging
  1. Transparency


The Transparency of a mail bag can also be of concern to a supplier. If the bag is transparent, it significantly increases the risk of tampering during transit. This can result in loss revenue and ultimately an unsatisfied customer.

Our mailing bags are produced using co-extrusion technology. During the process of blowing polythene film, most suppliers compress two layers of polythene film into one; however we compress three layers of polythene film into one. This ensures the bag is 100% opaque and provides high confidentiality during transit, reducing the risk of tampering.


TO TEST: Place an item inside of the bag and flash a light on top to see whether you can see what is inside. Alternatively ask a friend to see.


  1. Strength and Resistance


It is important for mail bags to withstand rough handling. It is common knowledge that many courier drivers are rough when dispatching and delivering goods. This can increase the chances of damaging the goods inside, or even items disappearing in transit due to easily torn mailbags.

As mentioned above, our mailbags are produced using co-extrusion technology, compressing three layers of polythene film into one layer. This results in extremely robust and durable bags, able to withstand rough handling. Furthermore, the bags are designed to be 100% moisture resistant in addition to being puncture and tear proof; additionally providing that extra security, confidentially and making the bag tamper evident.


TO TEST: Begin to tear the bag, gradually increasing the strength to test the durability and resistance to rough handling.