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…

Common uses for waste bags

140gauge Heavy Duty Black Sacks Case 200

Heavy duty black sacks earn their place when waste is rough, fat and hard on thinner film. At 140g, this sort of sack has enough gauge to cope with broken board, strapping offcuts and mixed warehouse debris without turning split loads into a daily nuisance. The black polythene suppliers does above conceal contents, because carbon black assists with light resistance and can proper the material amid conversion if the blend is well controlled. That matters on the shop floor, where a bag that creases badly or tears at the fold line creates additional handling and more mess. A sack that grasps together properly saves time, reduces secondary bagging and retains disposal moving.

Biodegradable bin liners are only as useful as the method they handle dirty waste once the bag is in service. A liner for nappies has to be robust enough to pull from the roll cleanly, grasp its shape when loaded, and seal away smells without splitting at the tie point or around the bottom seam. That means the film gauge and material blend matter only as much as the label on the pack. In a nursery or shared household, a liner that tears amid removal creates additional mess and additional handling, so a properly manufactured bag saves time and retains the bin area saner.

Rubble bags see simple, nevertheless they can still punish a small vehicle if they are loaded carelessly. A stack of twenty bags filled with broken brick, plaster and concrete creates a heavy, awkward consignment that shifts as soon as the car brakes or corners. If the bags are weak, split seams and sharp rubble edges fast spread dust and loose debris across the boot or trailer, which then becomes a cleaning job as well as a handling problem. Even where the load sits low, the additional weight can make suspension bottom out above speed bumps and let the wheels grasp the arches, so the method of loading matters as much as the bag itself.

High quality waste sacks need more view than plenty buyers give them, because shredded waste behaves badly in storage and handling. Small, sharp parts settle unevenly, which means a weak sack can split long before it reaches the bin lorry or the skip. A better-grade sack grasps its shape, takes the load without tearing at the gusset, and copes with the rough edges that come from paper, film, or normal office shredding. Good gauge control matters here, as thin film can see fine on a roll nevertheless fail as soon as the sack is lifted. A sack that retains its integrity reduces mess, shortens cleanup, and cuts the risk of claims from damaged loads.

Rubbish bags only work well when the film, gauge and seal are matched to the job, because a bag that sees robust in the hand can still split once it meets sharp waste, heavy offcuts or wet contents. Thin polythene suppliers is fine for light office waste, nevertheless production waste and mixed skips need a tougher blend and a proper bottom seal, otherwise the bag tears amid lifting and the mess ends up on the floor or in the truck. Stock control matters also, since the gross bag in the gross area slows down waste handling and creates avoidable handling damage. A sensible bag selection saves labour and retains disposal tidier.

Black Refuse Sacks – Economy

Coloured waste sacks are often chosen for sorting waste at origin, because alternative colours make it easier to separate streams before they stop up mixed together. That matters in warehouses, schools, hospitality sites, and production areas where transparent handling rules save time and reduce pollution. A black sack may conceal the contents, nevertheless a coloured sack can signal food waste, normal waste, or recyclables at a glance, which assists staff put the proper material in the proper place. The selection also affects stock control, since easy visual identification cuts the chance of bags being used for the gross job. Good colour coding retains assortment tidier and waste handling more tidy.

Waste Bags & Bin Liners

Bin liners have to match the bin and the waste stream, or they become more trouble than they save. A small pack of compostable liners for an 18 litre caddy is useful in kitchens and food-prep areas where wet scraps, tea bags, and peelings can soften normal film and lead to splits. The material requirements enough toughness for filling and lifting, nevertheless it also has to smash down in the proper recycling or composting system, which means the specification matters as much as the bag size. Poor fit wastes time, while the proper liner retains the bin cleaner and makes disposal tidier.

Bins & Bin Bags

Bin bags do far more work than simple liner roles recommend, because the proper film has to cope with sharp waste, wet contents and rough handling without splitting on the method to the kerb or the skip. Gauge matters here: also light and the sack tears below point load, also heavy and material is wasted on normal kitchen waste. Good seal quality and decent tear resistance assist, nevertheless so does matching the bag size to the bin so the rim does not overstretch the film. A bag that fits properly also stays tidier in storage and is less likely to snag amid fitting, which makes daily waste handling easier.

Black sacks cause immediate problems in garden waste assortments because they conceal what is inside and can contaminate a load that should be clean green material. Collection crews normally need to reject a wheeled bin if black sacks are found, since the contents cannot be checked fast and securely at the kerbside. That creates additional handling for the operatour and delays for the household, while the bin may remain unemptied until the gross material is removed. Clear sorting at origin retains the service moving and avoids a wasted assortment round.

Waste Bags

Waste bags need to match the job, because the gross film strength or gauge leads to split sacks, messy skips, and avoidable handling time. A light-duty bag may cope with dry office waste, nevertheless heavier mixed waste, offcuts, or kitchen material requirements a tougher polythene suppliers grade with better puncture resistance and a sensible seal. Bag size matters as much as strength, since an overfilled sack puts strain on the seams and makes lifting awkward. Stock control also plays a part, because the proper format has to be on offer where waste is created. Good specification cuts spillage, reduces replacement bags, and retains disposal routines tidy.

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

What people are searching for about waste bags

Heavy duty black sacks are judged by how they cope with messy waste, not by what the label says. In a kitchen or back-of-house area, a sack has to take wet scraps, broken cartons, sharp packaging edges and the strange bit of glass without splitting at the seam or shoulder. That means the polythene suppliers requirements proper gauge control and enough toughness to resist point loading when the bag is dragged, tied off or dropped into a larger container. A 30" x 45" size normally gives a superb balance between capacity and handling, so the load stays manageable rather than bulging into an awkward shape. When the film is manufactured properly, daily waste removal stays tidy and far less likely to turn into a spill or housekeeping problem.

Biodegradable bin liners fit awkwardly into composting if the gross product is chosen, because a liner that sees green on the shelf may still behave like normal plastic in use. A proper compostable sack requirements enough strength to transport kitchen waste without splitting, nevertheless it also has to smash down in the proper conditions, which means moisture, heat and time all matter. In a three-bin set-up, liners should assist retain fresh material tidy in the first stage without leaving fragments behind when the compost is turned. Poor spec selection leads to pollution and additional sorting later, so the cleaner option is the one that matches the disposal route, not only the label.

Rubble bags need to be judged on their load behaviour, not on any novelty scent or eye-catching label. For builders' waste, garden clearances and mixed site debris, the bag has to cope with sharp edges, abrasive fragments and awkward shapes without splitting at the seams or tearing where it is lifted. A light bag might see fine on the shelf, nevertheless weak film or poor stitching shows up fast once bricks, plaster and broken timber are chucked in. Good handling also matters, because a bag that is easy to occupy, tie and transport saves time at the point of use. The practical selection is the one that survives proper site abuse and retains mess below control.

Waste Sacks & Liners

Waste sacks need to be matched to the job, because the gross gauge or bag size leads to splits, leaks and additional cleaning work. A thin economy sack may suit light normal waste, nevertheless heavier mixed waste requirements a stronger polythene suppliers film and a better seal so the load does not put stress on the sides and base. Bin shape matters also, since pedestal, square and swing bins all grasp the bag differently and can pull on weak points amid removal. Picking a sack with the proper capacity and dimensions saves time at the point of change and retains the bin itself cleaner.

  6785 Rubbish Bags Suppliers and Exporters

Rubbish bags need the proper balance of film strength, gauge and roll format if they are going to work properly in stores, warehouses and at home. A bag that is also thin splits in handling and causes leaks, while one that is above-specified wastes resin and pushes up packing costs for no proper earn. Roll winding also matters, because poor tension makes dispensing awkward and can damage the edge of the film. Being transparent about the target market assists the maker determine whether the product should favour low cost, higher puncture resistance or an easier shopping presentation. A sensible specification reduces complaints and returns.

Heavy Duty Refuse Sacks

Heavy duty waste sacks need to cope with far above light kitchen waste, and that beginnings with the film itself. A sack manufactured from recycled farm waste can still be tough enough for mixed household and garden loads if the gauge and sealing are proper, because sharp stems, damp leaves and awkward offcuts fast expose weak material. Double sealing assists stop leaks along the sides and base, which matters when waste is wet or has been standing for a while. That sort of strength gives better confidence at the point of occupy and reduces split bags on the method to the bin.

Polybags Bin Liners

Bin liners do above grasp waste, and a superb spec beginnings with the proper gauge and fit rather than a vague one size promise. A bag that is also thin will split at the rim or below mixed office waste, while one that is also loose folds down into the bin and causes mess on removal. Easy-open packs also matter in storage and on the shop floor, because a badly finished bundle wastes time and leads to damage before the liner is even used. A proper liner should pull cleanly, grasp its shape in the bin, and make disposal quicker with less handling trouble.

Do I need to bring bin bags?

Bin bags in a cabin need a simple supply and a transparent disposal route, otherwise waste builds up fast and staff stop up dealing with loose waste. A small issue can become a smell problem, a hygiene problem, or only additional handling damage if leaking bags are left for also long. Two bins outside the cabin assist separate normal waste from recycling, which is easier on housekeeping and better for stock control of consumables. Good waste handling also relies on utilising the proper bag gauge for the job, so thin bags do not split below mixed waste. A tidy system reduces mess and retains the cabin workable.

18x29x38 Black Sacks Medium duty

Black sacks are often chosen because they conceal mixed waste, nevertheless the proper value lies in how the gauge and film blend cope with rough handling. A medium duty sack requirements enough stretch to take uneven loads without splitting when lifted from a floor bin or dragged across a concrete yard. If the film is also thin, corners of broken packaging and sharp offcuts soon cause rejects and mess on the assortment round. A better-manufactured sack grasps shape, retains contents out of sight, and reduces the chance of double-bagging at the point of use. That saves time in the bin store and retains waste moving with less fuss.

Reusable garden waste bags give a simple reply when loose clippings, leaves and prunings need collecting without tearing through thin liners. A bag manufactured with the proper gauge of woven or strengthened material can stand up to damp waste, rough edges and repeated handling far better than a single-use sack, so it retains its shape amid filling and lifting. That matters in the garden, nevertheless it also matters in storage and dispatch, because a stronger bag is less likely to be returned as damaged stock. The trade-off is transparent: a tougher bag normally costs more, yet it reduces waste and gives better service life.

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.