Sealing & resealing bags

Buy from an extensive range of sealable and resealable bags, including grip seal bags, zip seal bags and self-seal bags.

Sealing and resealing bags are...

• Reusable polythene bags that can be opened and closed
• Designed for multiple use - open and close as many time as you like!
• Bags that can be sealed by a variety of means, including self-seal bags

Self-seal bags are...

• Manufactured with an integral sealing strip, located along the bag opening, to allow for easy opening and closure
• Also known as minigrip bags, mini-grip bags, gripper bags, grippa bags and resealable bags
• Ideal for securing bag contents and avoiding leakage or contamination
• Available in a variety styles to suit a range of uses, from storage bags to carrier bags
• Available in clear polythene with or without labels - to make a note of bag contents and help retrieval
• Available in variety of coloured opaque polythene - e.g. red, green, blue or black - to help with item storage and colour-coded retrieval
• Also available in more specialist polythene, from heavy duty grip seal bags to anti-static grip seal bags
• Sometimes referred to as zip seal bags. However…

Advice from the web on grip seal bags

Grippa bags rely on proper film quality, not only a tidy appearance on the shelf. If extrusion wanders, the polythene suppliers can come off gauge and the bag beginnings to behave badly at the filling stage, with uneven opening, awkward handling and weak seal areas that split also easily below load. A transparent, ribbed stop assists as well because stock staff can spot contents fast at the select-face, which speeds up dispatch and reduces sorting mistakes. Once the material beginnings changing from batch to batch, the contrast shows up in stiffness and handling long before the case reaches the pallet. Good control at film making stage saves trouble later.

Zip Seal Bags Large Sale

Zip seal bags are a sensible selection when a product requirements to be closed fast without moving into a more costly pack format. The material has to match the job, because film gauge affects strength, seal quality affects security, and the opening size affects how easily the bag can be filled on a busy packing line. A bag that is also thin may split amid transport or storage, while one that is also stiff can slow operatours down and take up more room in secondary packing. Picking the proper specification retains the flow proper and reduces avoidable handling damage.

Gripper bags work well on packing lines because the closure is fast, visible and easy to check without slowing the shift. The pressed mouth grasps lightweight shopping products, spares and mixed kits securely enough for secondary packing, while still letting an operative confirm the count or contents at a glance. That matters where benches are busy and all additional movement adds waste. The format also behaves neatly in storage, since closed bags stack and box better than loose film or tied bundles. Used on the proper line, it cuts handling time without making the pack more awkward to manage.

Write on grip seal bags

Write-on grip seal bags earn their place because they combine fast identification with simple, proper packing. The transparent film lets stock be checked at a glance, while the write-on panel cuts out additional labels when products need coding, batch notes or dates on the part itself. That saves time on the packing bench and assists retain the select-face tidy. The seal also gives a repeatable close without heat sealing equipment, which suits small runs and mixed lines where speed matters above like kit. A plain polythene suppliers building retains the bag light and easy to handle, so there is less waste in transit and less clutter in storage.

100 Gripwell Plastic packaging supplierble Heavy Duty Grip Seal Bags 8" x 12" These Bags are 75 Micron / 300 Gauge :- Far Stronger than Normal 40 Micron Bags

Heavy duty grip seal bags are the better selection when small metal or plastic parts have awkward edges that would fast damage lighter film. Screws, clips and terminals transport around amid picking, kitting and bench work, and repeated contact with the bag wall can soon label, gouge or split a thin pouch. A stronger gauge gives better puncture resistance and grasps together through repeated opening and closing, which matters when stock is counted, checked and repacked several times before dispatch. That additional strength retains components contained and makes the bag a more proper part of the handling chain.

Coloured grip seal bags make sorting faster in a small stores area because the tint gives staff an immediate visual clue before any label is read. That matters when fixings, sample packs and returned parts all see alike in size and shape, since colour can retain stock in separate streams and cut down on mix-ups at the select face. The benefit is even clearer in poor light, where a tinted bag stands out better than small print or small labels. The bag still requirements sound polythene suppliers and an even gauge, though, because a weak patch or poor rib will let stock escape before the seal has done its job.

small black grip seal bags

Black grip seal bags only perform properly when the film specification suits the packing job rather than only the colour on the roll. A bag for small components requirements enough gauge to stand up to punctures, rubbing and hurried handling at a bench or dispatch table, while still opening cleanly and closing without fuss. If the film is also stiff, operatours waste time fighting it; if it is also light, splits and pollution soon follow. A sensible material selection retains the flow moving and avoids dead time caused by rejects.

Labelled grip seal bags assist control mixed stock because the write-on area retains identification tied to the contents instead of a loose tag. In warehouses and assembly areas, that makes batch notes, part numbers and grasp instructions easy to add at the point of packing, before items are moved or stacked. The bag is then less likely to be gross for something similar on a busy select face, and there is no separate label to curl, drop off or acquire covered by dust. For small components, fixings and repair kits, that simple marking surface reduces sorting work later and assists retain stock rotation tidy. The practical earn is less picking errours and less time spent hunting through unidentified bags.

packaging supplierble bags suit praline-coated pecan halves because the pack has to transport proper weight without losing shape or seal quality. A co-extruded polythene suppliers structure with a sensible gauge gives enough stiffness for shelf display and secondary packing, while keeping tare weight below control across a full consignment. The coating on the nuts creates the handling headache, since fine sugar and fat residues can interfere with closure tracks and leave the opening area messy. A superb press-seal or slider assists the bag survive repeated use, and the barrier has to slow moisture enough to keep safe the crunch. That trade-off is normally worth it when the pack requirements to see tidy, close properly, and grasp up through the supply chain.

Self seal bags speed up packing when the adhesive strip closes cleanly and grasps through the trip from bench to despatch. A line that relies on these bags can transport small parts, samples, or paperwork without reaching for tape or additional clips, which retains secondary packing tidy and cuts down on handling steps. The proper earn comes when the bag is the proper size for the contents, because that makes counting simpler and assists prevent items being mixed up in a tote or tray. When the seal is consistent, the job transports faster without creating avoidable rework.

Zip seal bags are…

• Manufactured with a metal zip fastener or zip seal, making them…
• A more premium bag than a grip seal bag
• Used for storing important documents, such as art portfolios or school project work
• Ideal for use as a wallet for conference delegates or for exhibition attendees
• Also known as zip bags, ziplite bags or zipper bags

Sealable, resealable and self-sealable - there's more than one way to seal a bag

Sealable bags

Any plastic bag that can be sealed shut can be described as a sealable bag.

The sealing process can be carried out by any means, including a bag tie or clip (e.g. a sandwich bag with a twist tie), an adhesive strip, either external (e.g. sealing any bag with cellotape) or internal (e.g. as with a mailing bag), an internal self-seal strip (e.g. as with a minigrip bag) or by heat sealing with an external sealer (e.g. as with vacuum bags).

So any plastic bag that is designed with a seal can be called a sealable bag. However, not all sealable bags can be called resealable bags.

Resealable bags

Only bags where the seal can be reused can be classified as resealable bags. Some bags, such as mailing bags, feature a single-use seal that can't be reused without tearing open the bag itself and thus rendering it useless. Mailing bags are a very convenient way of sending post - thanks to their integral adhesive seal - but, because their seal is strong enough to keep the mail contents secude until the bag is cut or ripped open by the recipient, then a mailing bag is not a resealable bag, although it is a sealable bag.

Self-seal bags

Not every sealable bag be called a self-seal bag. This monicker is reserved only for bags that can be sealed closed without using any external sealing accessory - including adhesive tape, clips or bag ties - and without the use of a heat sealer to melt the polythene and seal the bag.

The most popular types of resealable bags are grip seal bags. These bags, which are sometimes known as mini-grip bags, gripper bags or grippa bags, feature an integral seal that runs along the top of the bag.

The seal contains a male (single) and female (double) ridge of plastic on opposite sides of the bag opening. When the seal is squeezed gently between thumb and forefinger, the male ridge fits snuggly into the female ridges to close the bag. This seal protects the contents of the bag from moisture, dirt and other external contaminants.

It can be used over and over again, which means the grip seal bag is a sealable bag, a self-seal bag and a resealable bag.

This handy bag is available in a huge range of sizes, made from clear, coloured or black polythene, with or without labels to make handy notes on the bag and with specialist options including antistatic bags - to keep electrical components safe - and specimen bags with accompanying record cards - perfect for hospitals, doctors' surgeries and police stations.

Methods of sealing plastic bags

The most common ways of sealing a polythene bag are by:

Sealing the bag with ties or clips. Fasten any bag shut with a plastic clip or twist shut with a tie. A popular method of sealing food bags for domestic use (e.g. clip a packet of frozen peas shut before placing in freezer, twist a sandwich bag closed for a packed lunch etc.)

Sealing the bag with a built-in adhesive flap. Some bags such as mailing bags are manufactured with a flap opening, where the flap contains a built-in adhesive strip attached along its length. Simply remove the cover from the adhesive and press the flap down to seal.

Sealing the bag with a built-in grip or zip seal. A range of bags are available with an integral strip that seals shut either by squeezing the seal together (grip seal) or pulling closed (zip seal). Very handy for regular use as they can be used over and over, these bags also provide great protection from moisture, dirt etc.

Sealing the bag with a heat sealer. If you really want to seal your bag shut tight this is the method for you. A heat sealer will bond two pieces of plastic when placed together in the sealer and the sealer is closed shut. A one-time seal, this method of sealing bags is popular for vacuum packing food.

Where to buy sealing and resealing bags

Resealable bag manufacturers and suppliers include:

Ziplock Bags
The home of ziplock bags online, this website features everything you need on ziplock, zipper, ziplite, grip seal and all self-seal bags. With a huge range of products at great prices and free delivery within the UK, this is the number one ziplock website out there.
www.ziplockbags.co.uk

Self Seal Bags
Specialists in self-seal bags, this website stocks a huge range of resealable bags from grip seal to mini grip and ziplock to ziplite. Packed with loads of useful information to help you choose the right bag for you, with free delivery to UK addresses.
www.self-seal-bags.co.uk

Plastic Self Seal Bags
Discount Self Seal Bags is the place to go to get resealable plastic bags at discount prices. Also features loads of useful information on self-seal bags, including a handy buying guide to make sure you pick the right sort of resealable bag for you.
www.discountselfsealbags.co.uk

Minigrip Bags
A website loaded with information on minigrip bags - aka grippa bags - and all types of self-sealing bags, with list of the best places to buy them online. Features a useful guide to anti-static self-seal bags, what they are used for and how they work.
www.minigrip-bags.co.uk

Zip Seal Bags
Zip Seal Bags contains loads of great information on zip seal bags and other types of self-seal polythene bags and eco-friendly alternatives. It also features a handy list of online zip seal bag retailers.
www.zipsealbags.co.uk

Antistatic Bags
Antistatic bags is the number one website dedicated to antistatic bags. Containing a wealth of information on antistatic packaging and how it works, along with details of where to buy it at the best possible prices.
www.antistatic-bags.co.uk

Resealable Bags
Resealable-Bags is a division of Polybags Ltd, the UK's number one polythene manufacturer, that specialises in resealable bags. Offering an unrivalled range of resealable bags and other polythene packaging at the best prices online.
www.resealable-bags.co.uk

Research & Resources

For plenty more information on sealing and resealing bags, including the manufacturing process, types of self-seal bags available and their many uses, please visit:

PlasticBags.uk.com: Browse through a huge range of self seal bags websites or, if you are a manufacturer, list your products for free on this online directory specialising in self seal bags and other plastic packaging.

PackagingKnowledge: The UK packaging industry's number one website contains huge amounts of information and in-depth articles on self seal bags.

Goldstork: This free online directory features specially selected information and hand-picked features on a range of self seal bags and resealable bags.

What is static electricity?

Every object in the world - ourselves included - is made of atoms, which are in turn made of protons, neutrons and electrons. While neutrons have no charge, protons are positively charged and electrons are negatively charged.

In normal circumstances, the number of protons and electrons in an atom balance each other out, meaning that atoms have no charge. However, when two items rub together or separate, the electrons contained within these items can move from atom to atom or even from item to item, thus giving the atoms a positive or negative charge.

If the items involved in this situation are made from a material that does not conduct electricity - an insulator - then this charge can not move. The result is static electricity.

How do antistatic self-seal bags work?

If any static electricity comes into contact with an antistatic self-seal bag, rather than pass through the bag and risk damaging the electrical components inside the bag, the electricity passes around the bag and dissipates before it can make contact with the components, thus removing the possibility of damage.