Depending on the material used to make the non woven ba […]
Depending on the material used to make the non woven bags, some contain plastic some do not. Most of the the non woven bags are made of Polypropylene (PP), polyester(PET) resins and they are all petroleum based. These are better alternative to single use plastic bags but still it contains plastic and it is not biodegradable. However, there is this new type of material called Poly-lactic Acid (PLA). It is derived from fermented corn starch and it is completely biodegradable. With presence of certain microbe and the right temperature, it will be degraded to CO2 and H2O. It can be used as compost and it is a renewable resource. Common use of PLA material are 3D printing filaments and some cutlery. It can also be used to make nonwoven fabric bags. It has almost all the same features as PP and PET, definitely a better option.
A reusable shopping bag, sometimes called bag-for-life in the UK, is a type of shopping bag which can be reused many times; this is an alternative to single-use paper or plastic bags. It is often made from fabric such as canvas, woven synthetic fibers, or a thick plasticthat is more durable than disposable plastic bags, allowing multiple use.
Reusable shopping bags are a kind of carrier bag, which are available for sale in supermarkets and apparel shops. Some reusable bags have been found to contain high amounts of lead. Moreover, they require more energy to produce than common plastic shopping bags; one reusable bag requires the same amount of energy as an estimated 28 traditional plastic shopping bags or eight paper bags. "If used once per week, four or five reusable bags will replace 520 plastic bags a year",
according to Nick Sterling, research director at Natural Capitalism Solutions.A study commissioned by the United Kingdom Environment Agency in 2005 but never published found that the average cotton bag is used only 51 times before being thrown away.
In some cases reusable bags need to be used over 100 times before they’re better for the environment than single-use plastic bags.