Today, plastic bags are an essential part of modern living. They can be found on every continent and in every country. We use them on a daily basis for a number of different reasons, be it packaging or storing. They are now the most commonly used way for us to protect goods and produce.

They are comprised of two identically sized sheets, usually rectangular in shape that have been bonded together on three sides. Most plastic bags are manufactured from resins such as polythene and polyethylene. The actual density varies depending on the use of the end product. Generally, they are no more than two hundred and fifty microns in thickness.

Plastic bags can be made in a variety of sizes, shapes, and strengths depending upon their use. The larger sized bags usually have handles that have been cut into the top portion of the sheets to enable easy carrying, others may have the ability to be sealed to keep produce fresh.

Lately, plastic bags have developed a bad image due to environmental concerns, but this is unfounded. They actually use fewer raw materials in their manufacture than other forms of packaging such as cartons or boxes. Unwanted bags can also be recycled or even burnt in a process to create energy from waste products.

When considering the effect of plastic bags on the environment it is imperative to understand that compared to paper bags, they require less energy in the manufacturing process as well as when they are transported. An important aspect is also the fact that most plastic bags have the ability to be reused many times due to their strength.

Without plastic bags our lifestyles would be very different. Today we demand fresh food throughout the year. It is plastic packaging that helps to deliver this requirement. They help to prevent the spread of unwanted bacteria and diseases. We also use them to line our garbage bins to stop unwanted smells and liquids escaping. Our bathroom items mostly come in plastic packaging – soaps, creams, and similar items are kept in the best condition by using such protective coverings. Plastic bags are also used by us to transport our weekly shopping needs from stores back to our homes.

It is not just kitchen and bathroom items that are protected by plastic bags. Most “white” goods are also kept safe in this manner. Whenever we buy a new DVD or CD it will come with plastic packaging, as does almost all computer items. They help to protect against scratches, and damage caused by water and dust. Without plastic, our cherished technological equipment would not last long.

Plastic bags and packaging materials are also crucial to various industries. In health care centers and hospitals they are in indispensable way to give the highest standards of hygiene. All medical instruments and medications will have some form of plastic packaging to ensure full cleanliness. In agriculture plastic bags are also used to keep fertilizers and seeds safe from the elements.

Melinda Stockton is a packaging professional with over fifteen years experience in the packaging industry. Find out more on poly bags by visiting her company website about packaging products.