These films are made by blending an additive to provide an oxidative and then a biological mechanism to degrade them, this typically takes 3 months to 2 years in the environment with adequate exposure to oxygen. Degradation is a two stage process, first the plastic is converted by reaction with oxygen (light, heat and/or stress accelerates the process but is not essential) to low molecular-weight fragments that water can wet and then these smaller oxidized molecules are biodegraded i.e. converted into carbon dioxide, water and biomass by micro-organisms. This is similar to the breakdown of woody plant material where it is broken down and forms a humus component improving the soil quality. If put in an in-vessel composting system this type of plastic will rapidly break down but it is not currently marketed as compostable.
Pros
1. Much cheaper than starch-based plastics
2. Made with normal machinery and can be used in high speed machines.
3. Materials are well known.
4. Does not compete against food production.
5. These films look, act and perform just like their non-degradable counterparts during their programmed service-life but then break down when discarded.
6. They are certified non-toxic, and safe for food-contact .
Cons
1. Degradation depends on access to air.
2. Not designed to degrade in landfill but can be safely landfilled. Will degrade if oxygen is present and will NOT emit methane in landfill.
3. They are not suitable for PET or PVC.
4. Precise rate of degradation/biodegradation cannot be predicted but will be faster than nature’s waste’s such as straw or wood and much faster than normal plastic.
5. Like normal plastics they are made from a by-product of oil or natural gas.
6. If mixed with other plastics for recycling the recycling process is compromised.
Shrink Film
Stretch Film
Agricultural Film
Vacuum Pouches
Wicketed Bags
Bubble Wrap
VCI Films, Covers & Bags
Pallet Covers & Liners
Mailing Bags
Shrink Wrapping Machines
Stretch Wrapping Machines
Vacuum Packaging Machines
Lets get in touch. Send us a message:
#11/3, VG Complex, Herohalli Cross, Vishwaneedam Post, Magadi Main Road, Bengaluru 560091, Karnataka, India
Email: mukund@vgpack.com
Mobile: 7483994577
Ph: 080 23282733
Working Hours / Working Days:
09:30 A.M. to 06.00 P.M. / Monday to Saturday