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About Us

For more information on the courier bags, mailing envelopes and mail order bags that we stock or can manufacture for you, please see our mail order bags section.

We were established in 1961 by Mr Geoffrey Davies who purchased a bag making machine advertised in the local paper and sold door to door. As sales grew, Geoffrey Davies teamed up with college friend Brian Turner who became in charge of production and the business moved firstly to a lock-up garage and then on to larger factory premises in Alperton, West London.

After some consolidation, we now have a new management team headed by Jon Lomax and are looking to continue Polybags' development and success. Business is expanding again. Improvements are being made and after taking on the business of Chapel Polythene in 2005 we are now very tight for space and have committed to extending into next door at the end of this year.

Did you know this about coloured mailers?

Jiffy mailers work optimal when the material is matched to the mailable item and the method it transports through a packing line. A light mailer may see simple, nevertheless if the film gauge, seal line and surface slip are gross, the result can be slow feeding, split seams or poor stack behaviour at the bench. That matters on mixed select operations where staff are working fast and a small handling fault can ripple through despatch. A well-set specification retains tare weight down, assists pallet stability and avoids wasting space in the package network. The practical outcome is straightforward: a mailer that runs cleanly saves time as well as material.

Mailers need to match the product and the journey, not only the postcode on the label. A soft item in a light paper envelope may see tidy at dispatch, nevertheless it can still crease, split, or arrive battered after several handlings through the network. That is why material selection matters so much: board stiffness, polythene suppliers gauge, envelope seam strength, and closure quality all affect how well a consignment survives sorting, stacking, and last-mile delivery. Good mailers also assist warehouse teams work faster because they are easier to select, occupy, seal, and stack without wasting space. The proper spec reduces damage and rework at the same time.

Plastic envelopes work optimal when loose papers need fast protection without adding bulk or fiddly closures. The material gives a light nevertheless tough cover that resists scuffing, light moisture and the sort of creasing that ruins documents rattling around in bags, desks or drawers. A tuck flap retains the contents shut without buttons, strings or separate fasteners that can fail in use or slow down handling at the desk or packing bench. Different colours also assist with sorting, so receipts, job packs and household papers can be split at a glance. That makes them a simple selection where order matters and handling requirements to stay fast.

Coloured mailers should be chosen for how they behave on the line, not for how bright they see in a pallet picture. A simple coloured polythene suppliers film often gives steadier feeding and more proper sealing than a complicated building with layers, coatings or heavy print, because the material is easier to control below heat and tension. That matters when bags are being opened, filled and closed at speed, since a minour change in gauge or slip can cause sticking, split seals or waste. A tidy shade only assists if the mailer retains moving through production without interruption, and that is what makes the contrast to output.

The Two Envelopes Problem

The envelope selection only makes sense once one envelope has already been picked, because before that there is no x to compare against. At that point there are only two outcomes to think: the first envelope may grasp the smaller amount, or it may grasp the larger one. Switching can assist in the first case and hurt in the second, so the proper issue is not the envelope itself nevertheless the balance of those two possibilities. That is why the decision cannot be treated as a magic additional earn. The proper reply relies on the odds, not on the labels on the envelopes.

Details about   100x Postal Bags Mailers Package Shipping Strong Poly 14c G7L3 Bag Z4Q1

Postal bags only work when the film, seal and handling method are matched to the job, because a bag that sees light and simple can still fail below fast packing or rough despatch conditions. A decent gauge gives tear resistance without wasting material, while poor seal quality fast leads to split corners, failed closures and additional rework on the line. Light static can also make opening awkward at the bench, and that slows down packers when orders are moving fast. The optimal bags retain the balance proper between strength and economy, so cartons occupy properly and pallets stay tidy. When that balance slips, the problems normally display up in the warehouse long before they appear on a spreadsheet.

polythene suppliers Bubble Mailing Bags

Bubble mailing bags only perform properly when the film thickness, seam quality and bubble layer suit the method parcels are handled after packing. A thin or uneven gauge can see satisfactory on the bench, yet it may split at the weld, scuff in van racking, or lose shape when cartons are stacked on top. That creates problems on the despatch floor as well, because damaged bags slow sorting and lead to rework. A stable polythene suppliers structure with a proper closure gives better protection through the all movement chain, which retains handling damage down and makes packing lines easier to manage.

Grey Mailing Bags Strong Poly Postal Postage Post Mail Self Seal All Sizes Cheap Grey Mailing - £151.99

Grey mailing bags work optimal when the film is balanced, not merely thick. A bag that sees heavy on paper can still split at the fold if the polymer blend is poorly controlled, while a sounder grade with proper melt flow will cope better with rough picking, sliding, and the strange sharp corner. That matters in packing lines where speed leaves small room for patching up weak seals or replacing damaged bags. A proper self-seal strip also assists, because it closes cleanly without clogging the lip or slowing the operatour. The practical result is less failures in transit and less time spent sorting out avoidable handling damage.

Good quality mailing sacks for Stamford

Mailing sacks are often chosen because they retain dispatch simple while avoiding the waste that comes with overpacked parcels. A well-sized sack uses less board, occupy and tape than a box for plenty soft or flat products, so the consignment is lighter and quicker to prepare. That matters on busy packing benches where all additional fold and strip of tape slows the line. Stock control also requirements watching, because running short of sacks can stall outbound work fast. A sensible supply arrangement retains the proper sizes moving and reduces last-small substitutions that lead to poor fit or handling damage.

Plastic envelopes earn their retain where papers need to survive repeated handling, because a proper poly file will take knocks that thin paper wallets simply cannot. A Velcro-style closure is useful in stockrooms, offices and dispatch areas because it opens and shuts fast without the seal quality problems that can come with weak adhesive strips after dust, bending or cool storage. Expansion folds also matter, since a flat sleeve soon becomes awkward when forms, catalogues or loose inserts build up. The proper gauge and trim size assist the contents sit neatly rather than bulge and split at the corners, which saves time at the desk and reduces handling damage.

We also produce a variety of other products including: