Plastic bags are an essential aspect of twenty first century life. There is no country in the world that doesn’t use them. They have become vital for all our packaging and storing needs. Without them it would be difficult for us to maintain our demands for fresh foods and safely protected goods.

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.

A wide variety of shapes, sizes, and strengths can be had. The smallest can have an area of a few centimeters, while the biggest can be many meters in size. If the bags have been designed to carry products they will usually have a couple of handles cut into the sides. Others can be sealed to protect what they contain.

Today environmental concerns are at the top of many people’s minds. There are individuals that claim plastic bags are detrimental to the environment. This is not exactly correct. In their manufacturing process a lesser volume of material is used than with other packaging materials such as cartons or boxes. Also they have the added quality of being able to be burnt for energy production and can often be recycled.

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.

Today they are commonly used in our lives with a wealth of different applications. If we look in our kitchens we can see many different uses. Our garbage bins are lined with plastic bags and our fridges are full of foodstuffs that are kept fresh by plastic packaging that also prevents the spread of food borne illnesses. The bags we carry our groceries home in are also made from plastic, as are the bags used for bathroom items such as soap and beauty products.

Apart from bathroom and kitchen items there are many other uses for plastic bags in our homes. When we buy a DVD or CD they will mostly come in a protective plastic cover, as do the machines we play them on. This helps to prevent damage from scratches, dust, and water. Without plastic packaging these items may not make it back to our homes safely.

Many industries also require plastic packaging materials. Modern health care would be very different without the cleanliness and hygiene standard that plastic packing ensures. Nobody would want to see medical instruments that are not kept clean and protected from contamination! Farming also requires such a provision to ensure that seeds and fertilizers are kept dry and safe.

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