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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?

Plastic envelopes with snap closure work optimal when the closing strip grasps firmly without needing rough handling, because a weak snap can open in transit and let small items escape. The material requirements enough flexibility to close cleanly, nevertheless not so much that the edge curls or the latch loses grip after a few uses. In packing rooms, that balance matters when documents, samples, or small parts are being moved quickly through dispatch. A superb closure also assists retain contents tidy while reducing the need for tape or additional wrapping. When the snap works properly, the envelope becomes a simple secondary pack that saves time and cuts avoidable handling damage.

  6891 Courier Bags Suppliers and Exporters

Courier bags see like simple consumables, nevertheless the proper test is whether the film grasps up through a rough dispatch dash without adding waste or delay. A bag that is also light will split at the seal or tear on a conveyor, while one that is above-specified adds unnecessary tare weight and more material cost across big volumes. Good film control matters here, particularly when polythene suppliers is down-gauged to save plastic without weakening the bag. The optimal results come from keeping seal strength, stretch and abrasion resistance in balance, because that is what maintains consignment integrity when cartons, labels and sortation belts are all working against the pack. That kind of control pays off on the shop floor as well as in transport.

Jiffy mailers are chosen because they keep safe products without slowing the packing line or loading unnecessary weight into a consignment. A paper outer attached with a cushioning layer gives enough give for awkward shapes, nevertheless only if the construction retains its thickness below pressure and grasps together at the seams. If the gauge is proper, the pack runs cleanly through semi-automatic sealing equipment and is less likely to split or jam at the bench. That means less reworks, a steadier dispatch rate and less handling damage before the package even leaves the warehouse.

Lp Mailers

Mailers need to be chosen for the job they are doing, not only for their convenience on the packing bench. A lightweight paper or polythene suppliers mailer can save space in dispatch and cut postage weight, nevertheless it must still keep safe the contents from scuffs, dirt and damp amid handling. If the bag is also thin, corners display through, seals split, and parcels arrive looking tired before they have even reached the client. A better gauge, a decent seam, and enough room for the product make packing quicker and reduce complaints later.

Details about   Mailing Bags - PINK Postal sacks Plastic Envelopes Self Seal Post Bag

Plastic envelopes need to match the job of the item going through the mail, not only the colour on the outside. A self-seal bag gives speed on the packing bench, nevertheless the proper value comes from the method the material behaves below handling, stacking and transit knocks. If the gauge is also light, corners of documents or folded products can push through and create damage before the consignment even reaches sorting. Heavier film improves puncture resistance, though it can also add cost and waste. The proper balance retains packing smooth and reduces rework from split bags and failed seals.

The Two Envelopes Problem

Choosing between a fixed reward and a gamble relies on how the envelopes are install, not only on the headline amount. If one envelope has 2 pounds and the other has 50 pence, the normal outcome sees better than taking 1 pound for certain, so the second selection seems attractive on paper. That is the same sort of calculation used when comparing packaging options: a cheaper-looking spec may transport a concealed risk, while a steadier selection gives more proper results. When the potential outcomes are transparent, the expected value can point to the better decision, even if the safer option feels more adequate.

Postal Bags

Postal bags have to do a lot above transport light products from A to B. In a busy dispatch area, they need enough puncture resistance to survive sorting, chute impact and rough handling without adding unnecessary weight to the consignment. That balance normally comes from high-density polythene suppliers with a controlled gauge, because thin film that sees fine on paper can fail once seams are stretched or corners press into it. Good seal quality matters as well, since a weak seam can creep below load and open up later in the chain. A sound specification retains damage low and lets packing staff work faster with less relabels or rebags.

Bubble mailing Bags

Bubble mailing bags reduce unnecessary carton use when small products need protection nevertheless do not need the weight or bulk of a box. The bubble layer cushions impact amid sorting, stacking and normal handling, while the outer film or kraft face retains the package light and easy to transport through despatch. Size selection matters because loose contents can shift inside the bag, putting stress on the seams and leaving corners vulnerable. A well-matched bag also speeds packing and makes stock handling tidier on a busy line. That makes the format a practical method to cut damage without filling stores with additional board and null space.

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

Grey mailing bags in the 17 x 24 size earn their place because they handle awkward mixes of garments, boxed accessories and small components without adding much dead weight to the package. That matters when postage bands are tight, since all additional gramme can push a consignment into a higher charge and all weak pouch can create dealing with claims later. Good performance relies on above the stated size: the film requirements the proper gauge, enough stretch resistance and seams that stay intact through picking, cage loading and conveyor movement. A self-seal strip speeds up dispatch and avoids the stop-beginning waste of tape, so the packer acquires a cleaner rhythm at the bench and the package leaves with less chance of opening in transit.

Mailing sacks now cover a wide enough size spectrum to suit most package and mail dispatch work without forcing a poor fit. Smaller sacks assist retain loose items compact, while larger formats take bulkier consignments without stretching the seams or leaving also much slack for the contents to shift around. Standard grey stock also makes a practical warehouse selection because it is easy to identify, cost-effective to handle and uniform for mixed dispatch areas where speed matters above display. A sensible size match reduces handling damage and makes packing far cleaner on the despatch bench.

We also produce a variety of other products including: