date:Feb 20, 2019
e same chemical building blocks used by plastics made from fossil fuels. Others use various advanced biochemical methods to produce new polymers otherwise not made from fossil fuel sources.
Packaging for natural foods can use innate features of its component materials to bring those products to consumers: Transparent films give the consumer direct visual information about the product; the permeability of resins can be fine-tuned to pass beneficial gases into packages of natural product and to d