Experts chase options for chasing arrows

Published: November 13, 2012 6:00 am ET

Related to this story

Topics Blow Molding, Recycling

PITTSBURGH (Nov. 13, 2:45 p.m. ET)  — A panel of experts gave insights on sustainability at the SPE Blow Molding Conference, and while everyone agreed on the importance of going green, they all had different ideas on how to get there.

The most divisive issue was the resin identification code.

The RIC — a number, one through seven, inside a chasing-arrow symbol — appears on the bottom of plastic packaging. The Society of the Plastics Industry Inc. developed the code in 1988 as a way to help recyclers identify and sort plastics, but it inadvertently became an ineffective public education tool. In 2008, SPI charged standards-setting organization ASTM International with fixing it.

“What we have is a system that was well-intentioned but doesn’t work the way it was intended,” said Thomas Pecorini, a research fellow at Kingsport, Tenn.-based Eastman Chemical Co. who serves as the technical contact and chairman of ASTM’s D20.95.01, the subcommittee in charge of the RIC.

The current RIC has many problems, Pecorini said. Sorting lines at recycling facilities move too quickly for sorters to make use of the codes. The resin categories are too broad and don’t take into account additives or variations that would inhibit recycling.

The public misunderstands the symbols’ meaning and use: the RIC was never intended for the general public, but municipal recycling facilities thought the code was neat and decided to use it for recycling education. Consequently, people assume that the presence of a code means an item will be recycled, he said.

Sometimes, people use the code to spread misinformation about plastics; for example, the idea that “all sevens are evil” often pops up in the “blogosphere” and mainstream media, Pecorini added. A No. 7 designates “other” plastics that don’t fit into Nos. 1-6 — PET, high density polyethylene, PVC, low density PE, polypropylene and polystyrene, respectively.

“In short, the resin ID codes are a mess,” he joked.

But just changing the RIC isn’t that simple.

“It would be a lot easier to do this starting fresh rather than changing something that’s 25 years old,” Pecorini said.

Currently, 39 states have legally adopted the RIC, so eliminating or adding new numbers or descriptors could be in violation of state laws. While those states are considering changing their laws to reflect changes in the code, it would literally take 30-plus legislative acts to do so, he said.

ASTM is working on changes within the system. One suggestion is to change the chasing arrows to a solid triangle, which would hopefully prevent the public from assuming an item could be recycled, he said.

Adding new numbers might be out of the question, but an identifier could be added to note incompatible variants and No. 7 packages could include the material designation, he said.

There’s also the issue of recycling education.

For companies that want to boost their sustainability image, recyclability has been the easiest and lowest-cost claim to make, said Mylinda Jacobsen, purchasing manager at recycler Envision Plastics Industries LLC.

Companies have taken advantage of consumers not knowing the difference between “recyclable” and “recycled content,” she added.

However, the consumer is changing. “The reality is, we can no longer rely on consumer acceptance of recyclability claims,” Jacobsen said.

Consumers aren’t concerned with chasing arrows; they want printed instructions on how and what to recycle and are more interested in seeing recyclability information on a package than calories, fat or sugar content, she said, citing a study by an undisclosed market research firm.

The public wants a simple system — ideally, something that tells them what items go in the bin and what items don’t — but that can be more difficult than it sounds, Percorini said, adding that recycling isn’t regulated nationally, so accepted items vary by municipality.

During the discussion portion of the panel, the audience threw out its own solutions for identifying materials, ranging from adding quick-response codes to labels to requiring resin makers to put markers in the material that would allow sorters to see the exact makeup of a material.

Jacobsen agreed markers are a good idea, but because contamination is such a big problem at municipal recycling facilities, there also needs to be more work on an ID system.

The ASTM committee has made progress on the RIC and has passed ballots on some issues, he said. The committee is also looking for more representation from converters, he added.

Another speaker on the panel was Surendra Agarawl, the leading plastics adviser at Creative Group of Industries, a custom injection and blow molder based in Mumbai, India. His presentation focused on packaging redesign as a key way to reduce material and improve sustainability.

Thomas Gallagher, Pittsburgh-based technical and innovation manager with Braskem SA of São Paulo, discussed the firm’s success with its sugarcane-based “Green PE.”

The Society of Plastics Engineer’s annual blow molding conference was held Oct. 9-10 in Pittsburgh.


Experts chase options for chasing arrows

Published: November 13, 2012 6:00 am ET

Post Your Comments

Back to story

More stories


Recycling group releases shrink sleeve label guidelines

September 26, 2014 4:02 pm ET

A post-consumer plastics recycling trade group is out with a set of recommendations to help guide the packaging industry on the use of shrink sleeve...    More


Recycling rates continuing to climb for EPS used in transport packaging

September 25, 2014 11:28 am ET

Recycling of the expanded polystyrene used in transport packaging continues to rise, extending what has now been a years-long push even higher.    More


PRE taking the first steps to increase PET tray recycling

September 25, 2014 10:33 am ET

A set of new guidelines covering design-for-recycling for PET trays has been published by Plastics Recyclers Europe (PRE), the Brussels-based trade...    More


Blow molder wraps up expansion project

September 24, 2014 4:48 pm ET

Blow molder Apex Plastics recently invested $1.5 million in expansion projects for future growth.    More


Recycling equipment maker Vecoplan opens tech center in Germany

September 24, 2014 3:25 pm ET

Vecoplan AG recently held a grand opening of its 17,000-square-foot technology center in Bad Marienburg, Germany, equipped with more than 25 machines ...    More

Market Reports

Plastics in Mexico - State of the Industry Report

This report analyzes the $20 million dollar plastics industry in Mexico including sales of machinery & equipment, resins and finished products.

Our industry analysis highlights macro industry trends and micro trends faced by companies that do business in Mexico. The report also provides key industry statistics and forecasts to anticipate future industry expansion.

Learn more

Plastics Caps & Closures Market Report

The annual recap of top trends and future outlook for the plastics caps & closures market features interviews with industry thought leaders and Bill Wood’s economic forecast of trends in growing end markets. You will also gain insight on trends in caps design, materials, machinery, molds & tooling and reviews of mergers & acquisitions.

Learn more

Injection Molders Market Report & Ranking 2014

This special package contains our 132-page 2014 Market Report on the Injection Molding segment and our exclusive 2014 RANKINGS database of 500+ Injection Molders for a discounted package price.

Learn more

Upcoming Plastics News Events

January 14, 2015 - January 14, 2015Plastics in Automotive

February 4, 2015 - February 6, 2015Plastics News Executive Forum 2015

June 2, 2015 - June 3, 2015Plastics Financial Summit - Chicago 2015

September 16, 2015 - September 18, 2015Plastics Caps & Closures - September 2015

More Events