(Yes, it's the stuff that insulates your jackets.) It's also one of the most widely accepted forms of plastic in curbside recycling programs, though the amount of useable material available for new products after breaking down this plastic is relatively small. When it's not being used to manufacture containers, you might recognize it by another name: polyester. Usually accompanied by the letters "PETE" or "PET," this resin is generally used for soda bottles and other containers for edible and non-edible goods. The "Resin Identification Code" uses seven numbers to identify the type of synthetic material used to manufacture the container, with the higher numbers representing less commonly used plastics. The American Society of Plastics Industry first began using numbers inside the recycling symbols on plastic containers in 1988 as a way to assist with sorting them. Originally designed as an inverted triangle, the symbol was later rotated to the pyramid-like orientation commonly used now. Each arrow of the design represents one of the steps in the recycling process: collecting the recyclable goods after use, breaking them down and reforming them, and then packaging new products in the containers.
The universal recycling symbol-three folded arrows that form a triangle, with the head of one arrow pointing to the tail of the next-was created in 1970 by University of Southern California student Gary Anderson as part of a contest tied to the very first Earth Day. An International Symbol With An Earthy Origin From the recycling symbol itself to what those numbers on plastic containers actually mean, there's a lot you can learn from your trash before it becomes someone else's treasure. When it comes to the last part of that familiar three-”R” mantra, most people know enough to separate certain items from the rest of their garbage, but much of our modern recycling routine remains a mystery. Earth Day is here again, serving as an annual reminder of the need to reduce, reuse, and recycle our way to a better planet.
0 kommentar(er)
