Hot Water Bottle Seal? All Answers

Some hot water bottles may come with repair kits, while others require the purchase of a few basic supplies.

This method works best for small holes. For larger holes, buying a new hot water bottle is a better solution.

Fill the hot water bottle and apply gentle pressure to find the leak. Observe the spot where the water is coming from and mark the spot with a permanent marker.

Dry the hot water bottle. Hang it somewhere to air dry for at least 48 hours without removing the cap to ensure the inside is moisture-free.

Cut a piece of the patch material that came with the hot water bottle, or cut a patch from a bicycle inner tube repair kit. Make sure the patch is large enough to cover the entire leak along with the perimeter around the leak.

Apply a thin layer of rubber cement to the leak area. Spread it out as thinly as possible. Also apply a thin coat to the back of the rubber patch. Allow the glue to partially dry.

Cracked water bottles are a huge pain and can leave you with lots of unexpected messes to clean up. The best you can do is just buy a new one, but if you find yourself in a bind there are a couple of options. If you are looking for a longer term solution, apply some silicone sealant to the problem area. If you’re looking for a quick fix, use waterproof tape instead. Avoid using super glue as it’s not food safe and probably won’t work as well.

Hot water bottles can be dangerous and cause burns if not cared for or used properly. Please read our guide below on how to fill, use and care for your hot water bottle.

HOW TO FILL YOUR HOT WATER BOTTLE SAFELY

1. Do not use boiling water when filling your hot water bottle. Once the water has boiled, let it sit for a few minutes before filling your bottle. Filling a bottle with boiling water can cause splashes that can cause burns.

2. When filling your bottle, hold the bottle neck in an upright position and fill slowly to avoid water splashing back.

3. Fill your bottle no more than two-thirds full at a time.

4. ALWAYS deflate the bottle by gently lowering it onto a flat surface until water appears at the opening.

5. Tighten the plug sufficiently to ensure there is no leakage. Finger tight should be sufficient.

6 Hot water bottles should always be filled by a responsible adult.

HOW TO USE YOUR HOT WATER BOTTLE SAFELY

1. DO NOT sit, lie or put undue pressure on your hot water bottle.

2. To avoid burns, use a cover on your bottle and do not leave it in contact with any area of ​​the body for more than 20 minutes.

3. Only use a hot water bottle to warm up your bed. Take it out before you get in. This will help prevent accidental burns.

4. The use of hot water bottles by babies is not recommended and children should be supervised.

5. Elderly people and people with sensitive skin or reduced sensation should use hot water bottles with caution.

6. Hot water bottles can be dangerous and cause burns if not filled, cared for or used properly.​

7. Please follow the instructions.

8. All of our bottles are made from natural rubber, so be careful if you have a latex allergy.

HOW TO CARE FOR YOUR HOT WATER BOTTLE

1. DO NOT fill your bottle from a faucet or other home water system as this may prematurely degrade the product.

2. When using or storing your bottle, avoid contact of the bottle with hot surfaces and contact with oil and grease.

3. When you are not using your bottle, empty it completely and store with the stopper removed in a cool, dry and dark place – NOT in the drying cabinet as the temperature fluctuations from boilers or water tanks will affect the bottle or near a radiator , under the sink where chemicals can affect the quality of the bottle or where it is exposed to sunlight.

4. Don’t put anything on top of your bottle when storing it.

5. Check your bottle thoroughly, including the stopper, the first time you use it. Then check it regularly for wear, damage and leaks. Do not use if concerned.

QUALITY

1. All our bottles are manufactured to British Safety Standard 1970:2012 and are guaranteed against manufacturing defects.

2. It is advisable to replace your rubber bottle every 2 years to ensure you are always using a bottle that is in good condition and safe. Rubber naturally deteriorates over time and this natural process can be affected by the way it is stored and used.

Please also see our picture guides below.

Please also read our safe hot water bottle buyer’s guide. If you have any questions or would like more information about the content written here, please contact us at [email protected]

Even a small leak is a big problem. Leaking caps are a problem whether they occur when your plastic bottles are being stored, shipped or placed on the retail shelf for sale. Fortunately, there are steps you can take to reduce the incidence of leaky packaging. Let’s break down some possible reasons why a cap leak occurs (and what you can do to prevent it).

5 ways to get leak-proof plastic bottles

Apply proper torque when capping bottle caps

One of the most common reasons for cap leakage is capping with either too much or too little torque. Each type of plastic bottle cap has a specific specified torque range to ensure a proper seal. Installing a cap with a torque outside of this range is a potential cause of future product leakage.

The reason undertorque can cause cap leaks is simple – the cap’s soft liner material is probably not sealing tight enough to prevent future leaks. Too much torque causes other problems. If you apply too much torque, the cap can strip the threads in the cap and cause the fastener to loosen. Excessive torque can also fold the cap liner inside the cap, allowing for product leakage.

The solution to these problems is two-fold: identify the correct torque and test your containers. Your packaging supplier’s engineering team can provide recommended tightening torques for your closures. There are also general industry standards. For example, a 28mm cap would typically use about 15 inch pounds of force.

Even if you follow manufacturer recommendations and industry standards, you should always test your plastic bottles and caps to be sure. A benchtop tool tester allows you to test any product bottle and closure combination. Once sealed, allow your containers to sit under slight pressure for 24 hours to ensure they are tightly sealed and not leaking.

Securely attach induction seals to plastic bottles

Another potential source of plastic bottle leakage is an improperly applied induction seal. An induction seal is arguably the best way to seal a plastic bottle for just about any type of product. These plastic inserts require an electromagnetic pulse to excite the molecules enough to heat the induction seal and attach it to the opening of the plastic bottle. However, improper use will pose problems.

As with the torque problem, too much or too little heat can cause leakage problems. Too short a sealing time will not fully and correctly apply the induction seal. Too long a sealing time will burn the seal, which can create pinholes in the liner that allow product leakage.

Just like with caps, manufacturers of induction seals can provide usage recommendations. However, you should still test potential sealing areas to ensure your bottles are properly secure. Once you’ve applied your induction seal, lay the bottle on its side for 24 hours to test. You can also do 10 trial seals at different levels to get a good range of potential leaks. By adding weight to the bottles standing on their sides, the security of the induction seals can be tested even further.

Avoid product and chemical intolerance

Some plastics and chemicals just don’t mix well. Harsh chemicals like acetone and fuel additives can damage your bottles and caps if you don’t use compatible materials.

Fortunately, packaging engineers are a great source of material compatibility information. These experts can tell you which closure liners are best for your fill products, especially if your chemicals are more aggressive.

Even with these recommendations, you should test your plastic bottle and closure combination to ensure your fill product is not causing packaging problems. By heating the filled bottles in a test oven, all chemical processes caused by aggressive chemicals are accelerated. This process will give you a better idea of ​​how your product may affect the cap liner.

Make sure the cap threads match the neck of your plastic bottle

A cap thread mismatch can definitely cause leakage problems in plastic bottles. There are different thread types for plastic bottle caps, but some caps are a better fit for certain types of neck finish. For example, a standard 38-400 cap has a single thread, while the 410 and 415 models have additional threads.

This potential for mismatched closures and vials is why groups like the Closure Manufacturers Association have standardized certain specifications. You can work with Pipeline Packaging to obtain specification drawings and ensure your cap threads match those on the bottle neck. Also see Pipeline Packaging’s Cap and Neck Finish Measurement and Compatibility Guide for more information.

Consider the possible stacking pressure on top of the plastic bottle

Even if your caps fit your plastic bottles perfectly, too much pressure on the bottle can cause problems in the future. Too much weight falling on the bottle creates pressure in your container. This overpressure stresses the weakest point of your package, which is usually the closure seal. Therefore, this pressure can cause the cap to leak or even burst completely.

As you might expect, you want to make sure that no pressure or weight on the bottle will break the seal. This problem often occurs when the corrugated boxes that bottles are shipped and stored in are not properly designed to take the weight of your containers, especially when there are pallet loads that are stacked two or three high. Pipeline Packaging can help you test bottles and cartons – especially in humid conditions.

Invest in leak-proof plastic bottles and caps for your products

When trying to find ways to prevent your closures from leaking, your packaging supplier can be one of your greatest assets. At Pipeline Packaging, our team can work with you to find the right closures for your containers. We can also perform packaging testing to identify potential issues before they become a costly problem.

Please provide the product model number (or a photo of the product) and details of the required replacement parts to [email protected]. Our team will continue to support you from there. The list of available spare parts and details can be found here.

Selected replacement parts are available from our Thermos® Shop-in-Store in Takashimaya Department Store, Section B1 Household.

The humble hot water bottle can provide some much-needed comfort and warmth on those cold winter nights, but people are urged to be extra careful at the risk of burning themselves.

A four-year-old Queensland boy suffered burns to his legs after an outdated hot-water bottle he was carrying on his lap ruptured and hot water was spilled on his leg, ABC reports.

His mother told the ABC she never thought to check the condition of the bottle, which she kept in a fluffy sleeve for years.

Up to 200 Australians are hospitalized each year for severe hot water bottle burns, according to the Australian Competition and Consumer Commission.

It urges people to phase out their hot water bottle every 12 months.

Burns can be caused if the bottle bursts or leaks when the vessel is filled or if it is left on any part of the body for more than 15 minutes.

In a warning pamphlet, the ACCC states, “By the time you feel the pain of this type of (slower) burn, the damage is done.”

Camera Icon ACCC hot water bottle safety checklist. Credit: Australian Competition and Consumer Commission

SAFETY TIPS

DO

Always use a cover around the bottle to avoid contact burns.

Only use a hot water bottle to warm the bed. Remove the bottle before going to bed.

NOT

Never use a hot water bottle where babies or children could come into contact with it.

Never use a damaged hot water bottle.

Never use a hot water bottle in a bed equipped with an electric blanket.

Never lean, roll or lie on a hot water bottle.

Never put a hot water bottle in a microwave or oven.

STORAGE

DO

Remove the stopper and fasten it to the neck with a string.

Attach the hot water bottle to a hanger and hang it upside down in a closet to dry.

NOT

Never store the bottle with water in it or in a place where it may come into contact with sunlight, household chemicals or grease. They can cause the bottle to spoil and become weak before the next use.

Source: ACCC.

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Hot water bottles prove very useful when it’s cold and are a popular choice for relieving pain. However, prolonged exposure has been found to trigger erythema ab igne — also known as hot water bottle rash. There is evidence of a link between health status and cancer. So does this mean that we should stop using them?

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Prolonged exposure to hot water bottles has been found to induce erythema ab igne

What is erythema ab igne?

Erythema ab igne is a skin condition that occurs with prolonged exposure to heat (eg, pressing a hot water bottle on an area of ​​skin).

It is characterized by patchy skin and some people complain of mild itching and a burning sensation.

Other types of heat sources can also cause the condition, such as B. Repeated exposure to heated car seats and placing a laptop on the thigh.

What does the research say

A study conducted by researchers at the University of Basel Dermatology Clinic, Switzerland, focused on erythema ab igne and the use of laptops.

The case report involved a boy who presented to the emergency department with markings on one of his thighs. The researchers also conducted a literature search for studies of similar cases in a review of the topic.

Posted on October 31, 2019

It’s that time of year again when the cold weather has rolled in and the trusty hot water bottle is out! Here at The Hot Water Bottle Shop we love hot water bottles (obviously), but it’s important to remember that as cute and cuddly as they may be, they can pose a risk of serious injury if not used with care .

Delia Rickard, Deputy Chair of the Australian Competition and Consumer Commission, has written a great article on using your personal heating products safely:

“Hot water bottles look harmless but can cause severe burns or scalds if used incorrectly, unsafely or incorrectly.

Burns can occur when filling the bottle, if the bottle bursts or leaks, or if a bottle filled with hot water comes into direct contact with the skin.

Rubber products spoil, so you’ll need to replace your bottle regularly – every winter or every two years, depending on how often you use it and how well you store it.

Tips for using hot water bottles safely

Examine your hot water bottle carefully. Throw it away if there are signs of leakage or if it looks cracked, damaged, or brittle. An easy way to check for leaks is to fill the bottle with cold water first.

Avoid injury by waiting for the hot water to cool slightly before filling the bottle, and be careful not to overfill.

Lying down, lying down, sitting or pressing on a hot water bottle can cause it to burst. Therefore, take the bottle out of bed before getting in.

Use a cover to relieve pain or wrap the bottle in a towel to avoid direct skin contact. Do not leave the bottle on any part of the body for too long as burns may gradually occur. [At The Hot Water Bottle Shop we recommend that a hot water bottle always comes with a case].

[Remember to always follow the British Standard 1970:2012 instructions on how to fill, use and store your hot water bottle for a quick guide on how to fill, use and care for your hot water bottle care for your hot water bottle

Safe use of wheat bags or heat packs

Microwavable wheat bags or heat packs are another great way to keep warm, but they also come with their own instructions for use.

Wheat bags can pose a fire hazard if used incorrectly. They have been linked to fires if placed under bedding and can catch fire in the microwave if heated for too long.

How to seal plastic bottles with induction sealing from MHO Containers

Many food products, such as condiments, require foil seals to lock in freshness, prevent product leakage and protect products from tampering. For example, our empty spice jars are sold with lids and foil seals.

But you might be wondering: How do you actually seal plastic bottles? How do we attach the sealing film to the bottle?

The answer is simple: heat induction.

Induction sealing is the process of using induction heating to create a permanent bond between the foil seal and the plastic container. The result is a tamper evident closure that is airtight and secure.

How does induction sealing work?

In induction sealing, a foil sheet is placed under the cap of a bottle or jar. A heating head from an induction sealing machine is then placed over the cap and heated without contact.

This is completely non-contact as contact heat would likely melt the lid and glass.

The head creates an electromagnetic field that heats the foil under the lid. When the foil is heated, a coating on the underside of the liner melts. This molten sub-layer then combines with the pressure of the closed lid to form a hermetic or airtight seal.

Ultimately, the foil liner adheres to the bottle or jar and must be removed before the product can be used by the customer. For this reason, it is often referred to as a tamper evident or tamper evident seal.

Do you need an induction sealer to seal bottles?

Yes, you do an induction seal to properly stick the foil seal.

Luckily, portable heat induction devices are fairly affordable, which would be a good investment for any small business, small spice company, or DIY enthusiast looking to expand.

How do you test induction seals?

Testing foil seals can be difficult without a high tech seal tester. However, there are a few methods you can use to test your seal for leaks, including:

Visual Check – Make sure the seal sits flush on the top of the bottle. Look for gaps or places where the liner has folded back, creating an opening.

Make sure the seal sits flush on top of the bottle. Look for gaps or places where the liner has folded back, creating an opening. Squeeze Test – If the seal passes a visual check, try to gently squeeze the bottle. The seal should remain in place with no movement. Squeezing the bottle will reveal if the liner is not properly bonded in some places.

– If the seal passes a visual inspection, try to gently squeeze the bottle. The seal should remain in place with no movement. Squeezing the bottle will reveal if the liner is not properly bonded in some places. Flip Test – You can also try turning the bottle upside down, which is especially useful when dealing with a liquid. This will reveal possible leaks.

Finally, if the seal does not adhere properly, you can remove the failed seal and repeat the heat induction process.

What are the advantages of foil seals?

Foil seals offer numerous benefits to food and beverage brands, cosmetics companies, and many other consumer goods companies. For example foil seal:

Inspire consumer confidence – Foil-sealed bottles for food or cosmetics immediately increase brand awareness. The perception of the quality, safety and freshness of your product will increase.

Foil-sealed bottles for food or cosmetics immediately increase brand awareness. The perception of the quality, safety and freshness of your product will increase. Product Your Products – On a number of products, an airtight seal seals in freshness and prevents leakage.

For a number of products, an airtight seal seals in freshness and prevents leakage. Help comply with regulations – Some consumer products require security seals. This type of seal can help you comply with all food safety regulations.

Shop our foil sealed jars and condiment containers

MHO Containers offers a comprehensive range of wholesale bottles, jars and plastic containers. Our foil sealed spice bottles include screw caps and foil tops. All you need is an induction heater to seal it properly.

step 2

Hold the neck of the bottle over a clean can to allow the can to catch dripping wax for easier cleaning. This method works well for sealing plastic bottles used in dry-content crafts like sand art or homemade bath salts. If you’re using wax to seal a project with liquid contents, you’ll need to spend more time layering the wax to create a bridge over the liquid in the bottle neck.

Pen 55 share 57 shares

Pete started a new job last year which results in him drinking a lot of water. Since there are no water wells where he works, he takes a liter jug ​​of water with him every day. He used a plastic bottle (which isn’t great…you know, BPA and stuff), so he mentioned he wanted a stainless steel bottle. Being the nice woman that I am, I bought him a stainless steel gallon water bottle for Valentine’s Day. Of course I took a plain white one. Why? Because right now, the hot trend is to decorate the water bottle with stickers.

I told Pete that as soon as he opened it, and it wasn’t even an hour later when he grabbed the stack of brewery stickers we’ve accumulated on our travels.

It’s a great way to take your favorite trips with you. Many hikers decorate themselves with hiking stickers and then take the water bottle with them on their next hike. Jetsetters buy stickers in gift shops. Nothing stops you.

Use stickers to decorate your water bottle

Affiliate links are included in this post and Drugstore Divas may earn a small commission if you use them.

This is the basic overview of what to do. See the end of the post for more tips on applying your decals and caring for the bottle after decorating.

Get a stainless steel water bottle.

The brand doesn’t matter, and neither does the color, to be honest. Just make sure it’s easy. Anyone who already has a design isn’t really going to fit.

Start grabbing stickers in your favorite places. Pete wanted to decorate his with brewery stickers and it was super easy for us. We have a lot of breweries in Wilmington, NC so it’s easy to collect stickers this way. We also stop at breweries when we’re on vacation, such as the Sierra Nevada Brewery in Asheville.

Then simply attach the stickers to the water bottle in any way you like.

Pete’s water bottle is a gallon, so it’s huge and has plenty of surface space. That means he can put a lot of stickers on it. If you have a smaller bottle, you may need to be a little more picky.

Tips for stickers on water bottles

When you go to the trouble of decorating your water bottle with stickers, you want to preserve your creation. So check out our water bottle sticker tips.

Best Water Bottle to Apply Stickers:

Any stainless steel bottle will work. Be sure to choose stainless steel over plastic because the stickers are easy to remove from stainless steel.

The most popular drinking bottles made of stainless steel are:

You could also get a generic stainless steel water bottle, although we found one of these brands to keep water and ice colder than generic brands we tried.

Are there special stickers for water bottles?

Vinyl decals are the best option for a water bottle because vinyl decals do not fade. You can also make your own using a vinyl cutting machine, allowing you to fully personalize your decals.

If you don’t want that, there are countless small companies that will make you custom vinyl decals. Visit the Personalized Vinyl Decals section on Etsy and you can easily create your own decals.

You can use traditional stickers and decals, but you run the risk of these fading from the water bottle if left in the sun or water dripped on them. I had this with my old water bottle. When I first applied the sticker it was a giant band logo on a rectangle. Eventually it became a plain white rectangle.

Stickers with a white background are not as pretty as stickers with a transparent background. Transparent means that the image is printed in the center and the edges around it are transparent. This way you only see the image, not a lot of white space. If your decals have a white background, you can trim the edges.

To put stickers on a water bottle:

You should first clean your water bottle and make sure it is free of dust or dirt. Soap and water can leave soapy residue and this film can ruin your project. So, it’s best to put isopropyl alcohol on a dry cloth and wipe down your water bottle with it.

This should go without saying, but be sure to read the literature that came with your bottle to make sure isopropyl alcohol is safe for your water bottle. We are not responsible if anything happens to your bottle.

Then wipe the bottle with a paper towel. Do not use a cloth as these can leave fibers behind.

Peel off the backing of the sticker to reveal the adhesive. Start by sticking one end of the sticker onto the bottle, then slowly work your way to the other end, taking care to smooth out any air bubbles along the way.

If you get an air bubble, you can point a hair dryer at the bubble and then use your fingers to push the bubble out of the rim. You can also put a tiny pinhole in the blister. The latter shouldn’t really affect your decal, but it’s not my preferred method as I would fix the hole.

How to protect stickers on water bottles:

When you go to the trouble of decorating your water bottle with stickers, you want to protect it.

Hand wash your bottle only. Do not wash your bottle in the dishwasher even if it is dishwasher safe. The bottle might be, but your stickers probably aren’t.

Try to keep your bottle out of the sun or rain when using stickers instead of vinyl stickers. The items may fade the decal.

You could use a food safe clear epoxy to cover the decals. I can’t stress this enough: it has to be food safe or food grade. If not, don’t use it to seal your decals. Don’t use ModPodge. While this would be great for applying stickers to a canvas, it is adhesive and not food safe.

Buy water bottle stickers online:

My mother is the biggest sticker collector. She uses them to decorate her clipboard, not a water bottle.

She gets a lot of these from the national park visitor centers, which are basically a gift shop for the park. You can buy travel stickers online at the following stores:

Free Water Bottle Stickers:

To make your life easier, I am listing the free travel stickers that I can find below:

Remove stickers from water bottles:

To remove the sticker, start at a corner (or end if it’s a circle) and pull until the entire sticker is removed.

If any glue remains, you can easily remove it with Goo and glue remover.

Wash your bottle with isopropyl alcohol on a dry cloth to remove any cleaner residue, then wipe the isopropyl alcohol off with a clean paper towel.

More ways to decorate your water bottle:

If you’re looking for other ways to decorate your water bottle, check out our Paint Pour Water Bottle tutorial post.

Have you decorated your water bottle with stickers? Let us know in the comments!

Great posts to keep reading:

Top for storing liquid in a bottle

This article is about bottle caps. For the Nestlé candy, see Bottle caps (candy). For the cap game, see Pogs

“Bottletop” redirects here. For other uses, see Bottletop (disambiguation)

A bottle stopper or bottle stopper is a closure for the top opening of a bottle. A cap is sometimes colorfully decorated with the content brand logo. Plastic caps are used for plastic bottles while plastic-backed metal is used for jars; Plastic toe caps are usually made from PE or PP,[1] while metal toe caps are usually made from either steel or aluminium.[2] Plastic caps may have a spout. Flip-top closures like flapper closures allow controlled dispensing of dry products. Plastic bottle caps are often made of a different plastic than the bottle.

A cork is another type of closure for the top of a bottle.

Types [ edit ]

Caps were originally designed to be squeezed over and around the top of a glass bottle to grip a small flange on the bottle neck.

bottle caps[edit]

The crown cork was patented by William Painter on February 2, 1892 (US Patent 468,258). It had 24 teeth and a cork stopper with a paper backing to prevent contact between the contents and the metal cap. The current version has 21 teeth. A bottle opener is usually used to open these bottles.

The height of the crown cap was reduced in the 1960s and specified in the German DIN 6099 standard. This also defined the “twist-off” bottle cap now used in the United States, Canada and Australia. This cap crimps around a screw thread instead of a flange and can be removed by twisting the cap by hand, eliminating the need for an opener.

The “flip-top,” “swing-top,” or “Grolsch” style consists of a plastic or ceramic plug held in place by a set of wires. Before the invention of the crown cork, this was the predominant method of sealing bottles containing carbonated liquids.

An opened “Flip Top” bottle

A pair of bottles with flip top caps

Other types[ edit ]

screw cap [ edit ]

Plastic screw caps for bottles.

Screw caps are the most common bottle caps. They are easily applied with a variety of automated equipment or can be applied by hand. However, the application torque of fasteners must be controlled for the fasteners to function properly in the field. Closures must be applied tightly enough to maintain a seal and resist closure detachment, but not so tight that the end user cannot remove the closure. They are often found on beers like Coors or Bud Light.

Screw caps were originally an internally threaded design. Hyman (Himan) Frank of William Frank & Sons, Inc., Pittsburgh, PA has patented a glass bottle/jar having an internal thread immediately below a tapered seat gasket seat. On August 6, 1872 he received the patent US 130208 A.

Closure lining materials [ edit ]

Foamed Polyethylene (F217) [ edit ]

Commonly used with plastic screw caps. F-217 is a soft polyethylene foam core covered top and bottom with firm clear polyethylene and comes in .050 inch thickness. F217 has become the industry standard due to its universal compatibility, resilient, compressible seal, cleanliness (no pulp dust), and economy. F217 liners have excellent chemical resistance and a low moisture transfer rate. F217 has good taste and odor retention.

Plastisol[edit]

Plastisol is the standard liner material used in metal closures for vacuum packaging glass bottles and jars. Plastisol is an incorporated mass, usually a dispersion of PVC resins in plasticizers. It forms a strong, self-adhesive seal in the closures. Plastisol liners are used in metal twist-off and metal fully threaded screw closures for use on hot-packed foods where maintaining a vacuum is essential.

Self-adhesive liners (PS 22) [ edit ]

Styrene foam coated on bottom with torque-activated adhesive. Pressure-sensitive inner seals adhere to plastic or glass bottles with normal tightening torque. Pressure sensitive liners are supplied crimped into closures and adhere to the bottle finish when the closure is applied. Self-adhesive liners stick to the container because one side is coated with pockets of adhesive. When the closure is applied to the container, the pockets of adhesive between the closure and the finish of the bottle or jar tear. The pressure sensitive liners then adhere to the bottle or jar and stay in place when the cap is removed. No additional equipment is required. The closures are supplied with a standard liner as the backing. This material requires a dry land area on the bottle and is therefore only suitable for use with dry products such as vitamins, foods and medicines.

Polyseal cone liners [ edit ]

Molded from low-density polyethylene, Polyseal cone liners form on the inside of the bottle neck, creating a leak-proof seal that protects against flashback and product evaporation. These closures are excellent for use with acidic products and essential oils and are recommended for use on glass bottles only.

Linerless Designs – Land Seal (Crab Claw) [ edit ]

A popular general purpose linerless sealing mechanism that can be used on almost any bottle. The design typically features a .045 inch molded inner flange that, when applied with normal application torque, compresses to about half its thickness while sealing against the bottle lip. The liner creates a watertight seal with a bottle with a minimum 0.065 inch wide sealing surface free of nicks, burrs, or imperfections. Available in popular dispenser caps, this strapless mechanism has the advantage of being easier and cheaper to manufacture.

Promotional purposes[edit]

Soda companies primarily use caps for promotional purposes. A message is printed on the inside of the cap and people with the right message can win a prize. Because the bottle must be purchased to determine the message and win, people usually buy more of the drink to increase their chances of winning. Some companies print interesting facts, riddles, or games on the inside of caps.

A longstanding promotion by the Coca-Cola company was the MyCokeRewards program, launched in 2006. Most caps have an alphanumeric code that can be entered for points on their website.

In popular culture[edit]

William Saroyan portrait in Yerevan composed of plastic bottle caps.

One of the more prominent uses of the traditional metal bottle cap in popular culture is its use in the Fallout series of video games. In the series’ post-apocalyptic America, bottle caps – usually shortened to simply “caps” – were adopted as a de facto currency by the various races of the Wasteland. Although official currencies are used by some of the more developed factions, bottle caps are essentially a universal medium of trade throughout the rest of the country, to the point that the discovery of a working bottle cap press threatens to destabilize the economy.[3]

See also[edit]

References[ edit ]