Poly Postal Packaging is a
leading manufacturer and
supplier of polythene and
If you want to be sure that you are doing your part in helping the environment, then these are the mailing bags for you. This very popular range of grey oxo-biodegradable mailing bags are manufactured in our 3 layer co-extruded film. To ensure that your labels stick to the outside of the mailing bags we have extruded the outer surface in a 100% virgin layer and low slip. The polythene film is manufactured from at least 25% post consumer waste and are also 100% Oxo-biodegradable*.
All our grey printed warning notice mailing bags are 45mu in thickness, which is classed as lightweight-mediumweight use. The bags come with a child safety suffocation warning notice printed on them. The inside of the bags are black so that you cannot see through the film. The high specification of grey film has been chosen to give the best performance to weight ratio, whilst reducing your postage costs, but ensuring delivery of your products in good condition. With a unique grade of hot melt glue used for sealing the mailing bags, once they are sealed you will have to rip the mailing bags open to get at the contents. Our grey printed warning notice mailing bags can be addressed and accept labels, stamps and pens/biro.
* The term ‘Oxo-biodegradable’ is a hybridisation of two words, oxidation and biodegradable. It clearly defines a two step process initiated by an additive called 'Reverte' to degrade the polythene film and make it available for biodegradability within the environment when a bag has finished its useful life, usually within a set time period depending on the % added. 1% would trigger in around 6-8 months.
The additive is designed specifically to address the issue of plastic waste that gets into the environment and cannot be realistically collected. It has been used in numerous PE and PP applications for many years and now.
Advice & Usage Guide
Use; The bags will arrive folded or laid flat in an outer Carton. Once you unpack the mailing bags, simply slide or drop your product into the mailing bag. The best method for sealing the mailing bag is to then lay it on a flat surface, lip/glue facing up. Peel off the release tape from the lip which covers the glue and then fold the lip over onto the body of the bag. We strongly advise that you only fold the lip over to where it naturally wants to fold to and no further. If you fold the lip right over and seal it, lets say half way down the bag, then there is a chance that the glue will not form a perfect bond and the bags could come open. We specially treat the mailing bags in the direct area where the lip folds over to as this helps with the bond formed by the glue migrating into the film.
Storage; We recommend that mailing bags with Permanent Tape are stored at a temperature of 15 - 20 degrees and 50% relative Humidity. If the ambient temperature falls to less than zero - 5 degrees then you should ensure that you have a means of warming the mailing bags in use. This because the very cold temperature hardens the glue and so it takes longer to form a bond with the film.
Extra Padding?; If you feel that you could do with a bit more protection for your products in transit due to them being fragile or delicate, then why not try our bubble inserts with these mailing bags. You don’t even need to buy the same qty to match as you can pick and use when you feel you need to using bubble lining when shipping your goods! Alternatively we stock bubble wrap and boxes.
Size in mm: 350 x 500 + Lip +/- tolerance
Size in inches: 14 x 20 + Lip +/- tolerance
Opening: on the 350mm side
Glue: Permanent Hot Melt x 1 Strip on the lip
Thickness of the Poly: 45mu/45microns/180 gauge
Qty Per Box/Pack: 500 approx in 50's
Weight Per Bag: Approx 16 grams +/-
Environmental Impact: These bags are 100% Oxo-Biodegradable.
See here for details of our Environmental Policy
Royal Mail Postal Category: Large Letter (depending on thickness of contents)
Free Sample? - Sure, just ask. Telephone 01522 300591, E-mail us direct, use our Get In Touch page, or use Live Chat.