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Uses and Types of Bottles

6/27/2012 4:26:05 PM | by Anonymous

Bottles

Bottles are very common items and can be found almost everywhere. They come in various shapes and sizes and can be made of many different materials. Despite the variety of shapes, all bottles have a neck that is narrower than the body and a mouth which can be covered by a cap or a cork. The materials used to make bottles are usually glass, clay, aluminium and plastic. Typical applications of bottles are to store liquids such as milk, water, beer, wine, oil and almost any liquid substance. Bottles that make use of a cap usually have threads on their mouth as well as the cap having thread on the inner side that would be screwed onto the mouth. Other types of bottles that do not make use of these types of caps can have a cap that simply pop open.

 

Bottles have been around for thousands of years with the earliest examples appearing in Crete, Rome and China. It is believed that the first bottles were used around 1,500 B.C. Previously, before development and invention of new materials; bottles were made of clay which was followed by glass bottles. Making bottles out of glass were one of the first few discoveries in the history of bottles. The liquid that is to be stored in a bottle is normally related to the material used to make it. Many countries also have laws that require bottles made of certain materials to be recycled to prevent environmental pollution and save cost. One can determine the content of the bottles simply by looking at it and identifying the material used to make it. Certain materials used to make bottles may not be ideal to hold all different types of liquids. For example stainless steel cannot be used to make bottles for holding hot coffee or tea as it is a good conductor of heat and it would cause scalding if touched when there is a hot liquid inside. Also, bottles made of plastic should not be used to contain hot liquids as it could affect their structure causing them to lose form. Another disadvantage of making bottles out of plastic is that they cannot be easily recycled and are not degradable, thus could harm the environment.

 

Types of Bottles

Plastic Bottles

These types of bottles are present in almost all parts of the world and are in abundance. Many manufacturers use these bottles to contain soft-drinks, oils and many other household liquids. Plastic is an ideal material for manufacturers to make bottles from as it is cheap and easily available. The process to manufacturing plastic bottles is inexpensive thus not rendering manufacturers much production cost. However, using plastic bottles can have harmful effect on the environment if not disposed off properly. Plastic is not a biodegradable material thus it can cause pollution if disposed off simply into the environment. Despite the advantages, there are some disadvantages as well to using plastic bottles.

 

Baby Bottles

Baby bottles are usually made out of plastic so that they do not break in situations where the baby might throw or drop them. Some baby products that are stored in these bottles require to be heated before they can be fed to the baby, therefore these bottles should be heat resistant. An example of a plastic that is used to make these bottles and is heat resistant is PP-5. It is able to resist heat thus not releasing any harmful substances into the food whilst heating.

 

Aluminium Bottles

These bottles are ideal as they do not break and can be resealed easily. They also are fairly resistant to heat which makes them ideal to store cold drinks.

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