Blog

Hello and happy Friday! Oh boy do I have a treat for you!

As some of my more diligent followers know, I have not been blogging about my work on recycling thermoforms because of other marketing obligations. That being said, it just so happens that I got to kill two birds with one stone: I was given the task of writing my very own white paper on the state of recycling clamshells and blisters in America for our outgoing marketing piece for August! How cool is that! It took a lot of work, but to be honest, once I started, it sort of just flowed out of me. Perhaps researching issues around recycling thermoforms for almost a year allowed for the easy transmission of information. This report is probably the most technical piece I have ever written, aside from my senior thesis on our secular age, capitalism, and the Frankfurt school. If anyone is interested, let me know, only two people have ever read this masterpiece; my professor and myself! Ha!

So yea, I am pretty proud of this report because it summarizes why thermoforms are not really recycled in America and what we as an industry can do to change it. While I intend on presenting this report to different publications for further exposure in addition to putting it on our website and using it for our marketing, I thought I would share it with you, my packaging and sustainability friends, first! There are some tweaks I still intend on making, and I would love any feedback you can surmise! Also, we still need to put the bells and whistles on it so it looks like a “real” white paper.

Again, this recycling report is a compilation of my research on recycling with suggestions for our industry.

Check it out!!! Oh, and I apologize but all the footnotes can only be displayed as end notes...

 

Hello! Sorry I didn’t post yesterday! I am now a new resident of the West Loop, Chicago. Moving yesterday was a total debacle: movers came early, I didn’t have enough boxes, I got lost on the way to my new place and ended up too far West for one’s own good, and then I got locked out of my new place and had to call a lock smith. Fun times…

Well I’m back and ready to talk about recycling in America!

Where were we?

Two days later I arrived to the office anticipating the results of our RPET samples’ “test” to determine if our RPET is “read” like bottle-grade PET. Here’s the thinking: If our RPET moves through the MRF’s optical sorting technology like PET bottles, then we would have some leverage to approach our suppliers of post consumer regrind PET with and suggest they accept bales of PET bottles with our RPET thermoforms in the mix. It’s worth a shot, right? I swear, as this recycling initiative moves forward it keeps changing. For those of you who are new to my blog or have not followed the narrative, these are some possible solutions to finding a way to recycle thermoformed packaging:

1. Integrate our RPET thermoforms into the existing PET bottle recycling infrastructure. This is large scale and regionally a-specific.
2. Work with our supplier of PCR PET to create a pilot program that works as follows:

• We would work with WM to designate a bale for PET bottles AND RPET thermoforms (either just our packages, so we could certify the integrity of the resin feedstock, or all RPET thermoforms, which may get a little messy depending on which domestic/international markets said material is originating from);
• This bale would sit at WM collecting PET bottles and RPET thermoforms until full;
• This mixed bale of RPET thermoforms and PET bottles would be purchased by our material supplier who would clean, grind, and extrude the mixed bale to create sheets for us to thermoform;
• We would ensure that we would buy this mixed thermoform and bottle-grade RPET sheet, providing security for the material supplier to engage in this initiative;
• We would test this mixed sheet with our machines and see what the output is.

1. Create a new end market for low-grade, mixed rigid plastic packaging, as is the case in some communities on the East and West coasts where all plastic, once the PET bottles and HDPE jugs are removed for recycling, are collected for reprocessing. Sometimes this reprocessing manifests itself in lumber applications and sometimes this low-grade plastic mix is sold to international markets for WTE or perhaps feedstock for resin production.

So yeah…don’t really know what the best approach is…any suggestions?

Now that we have recapped, let us return to December 1^st, 2009.

Upon arrival to the office I shot my contact at WM the following email:

Good day!

I hope you had a lovely Thanksgiving weekend.

I just wanted to drop you a quick email inquiring into the status of our samples’ analysis via optical sorting. At your earliest convenience, please let me know if you have received the status of said analysis.

Thanks again for your time; I owe you lunch!

Best,

Chandler Slavin

Later that day I received the following response:

Hi Chandler,

Thanks for the note, yes, it was a nice Holiday break. I will reach out to my contact and our Grayslake plant manager this week to see if there's any update. The big issue as I think you know is on the buyer's end....even if WM can accept and sort your PET material, the buyer's of PET typically only recover the bottle grades, any other plastic is typically discarded. 

TICK TOCK.

Tune in tomorrow to learn more about recycling in America!

Goooooood day! I finally finished my report on Extended Producer Responsibility/Product Stewardship. Look out for it at www.dordan.com under the sustainability tab!

Let us resume our clamshell recycling initiative narrative:

The next day I arrived to the office feeling much better having received Robert’s insightful email. I felt as though my journey of discovering an end-of-life market for thermoformed packaging was slowly making progress. I had established that if our RPET packages are “read” like PET bottles via the MRF’s optical sorting technology, we could integrate our RPET packages into this recycling infrastructure. I also learned that we could develop a new market for mixed rigid plastic packaging post-consumer (that is, non-bottle grade plastic material), as is often the case in CA. I wonder which would be more cumbersome…Ha!

To my surprise, I received an email from the Environmental Director at Starbucks, responding to the email I sent yesterday.

Chandler,

Thanks for the email.

I am traveling in Los Angeles this afternoon and won’t return until Friday evening. I will be in the office next week, so please feel free to give me a call at your convenience. The best time to catch me is between 7:30 and 8:00 on weekdays, before meetings start up.

Cheers!

GROOOOOVVVVVVYYYYYYY. It looks like I may get my interview after all! My father, who is also coincidently the owner of Dordan, told me “not to hold my breath” about actually getting to speak with the Environmental Director of Starbucks. Not to be a jerk, but I love proving him wrong, at least for the better.

And another beneficial development: I had several responses to the discussion I started on greenerpackage.com about trying to recycling non-bottle PET thermoforms. The most insightful was from the Association of Postconsumer Plastic Recyclers, who I discussed briefly in an earlier post.

Check it out:

The Plastic Recyclers Viewpoint...

Posted on behalf of the Association of Postconsumer Plastic Recyclers (APR):

Back when the world was younger and more uniform, there was one fairly simply defined PET resin used for 2 liter soft drink bottles. PET makes an excellent 2 liter soft drink bottle. Then more packagers wanted to use PET bottles for other products with other needs. The result today is that the PET used for bottles encompasses a range of molecular weights and potential additives.

Thermoformed packaging made from PET may use similar resin as is used for bottles or may use even lower molecular weight (lower IV) plastic. The technical needs for thermoformed packaging are not necessarily the same as for bottle packaging. There is an overlap in IV ranges used for bottles and for thermoformed sheet. Does the potential for IV difference preclude recycling the two forms together? No. End use markets dictate how significant are the differences for recycled plastics from different first uses. Are there additive conflicts? Unlikely, but not assuredly.

So why the reluctance to include thermoforms with PET bottles? There are at least two current reasons. First, the risk of serious contamination is great. A thermoform of non-PET can visually look like PET and be a huge problem. Think inclusion of PVC with the PET. This problem has been a showstopper in North America. In China, hand sorting can overcome the problem if the resin code is accurate. The second problem is a materials handling problem. Crushed thermoforms do not behave like crushed bottles. They do not “fly” the same in autosorting equipment and they do not bale the same. If bales are made too dense, the material does not process as efficiently as it should. Adjusting to the differences takes time and effort.

Does this mean PET thermoforms cannot be recycled? No. Thermoforms are recyclable, once we get through the growing pains of special needs and critical mass. Would sustainability be better served by switching all thermoforms to a different material? Probably not as non-PET, non-polyolefin resins are even more problematic in being accommodated in existing collection and sorting systems.

So why are multiple resins used? In some cases that decision is for aesthetic or performance reasons. Usually, economics dominate. And sometimes tradition keeps on happening. As has been the case for bottles, there does seem to be a gravitating by decision makers to a few resins. The challenge is to develop the infrastructure that allows for efficient handling and sorting to useful resin categories and then to develop markets for those categories.

This response was written by Dave Cornell, Technical Director for APR. For more info on the Association of Postconsumer Plastic Recyclers, including published Design for Recyclability Guidelines, www.plasticsrecycling.org

Posted November 19, 2009

Radical! Design for Recyclability Guidelines, eh? Sounds right up my alley. Time to do some more research!

Tune in tomorrow to learn more about recycling in America!

Happy Monday! I am already on my second cup of joe and not feeling too perky. Ug! I hope everyone is feeling a little more motivated than I…

Shall we resume our recycling narrative?

The next day I arrived to find an email waiting from Robert Carlson of the CA EPA. This is in response to the email I sent updating him on the status of my clamshell recycling initiative. It is jammed packed with goodness so enjoy! Thanks Robert!

Chandler,

First I wanted to address the issue of collecting rigid plastics for recycling (providing the source for PVC contamination). I’m not terribly aware of the recycling infrastructure in your part of the country, but here in California, most jurisdictions do in fact accept mixed plastics. A lot of jurisdictions moved away from the 3-bin system which often took only beverage containers to a single-stream approach to recycling where you dump all recyclables into a single bin and it’s sorted at the MRF. Where I live, the city picks up 1-7 plastics of any kind for recycling then sorts later. So…this situation is one that would introduce a PVC bottle or clamshell into a stream where it could be confused for PET or some other plastic for that matter (even paper). Also, if there are commercial recycling centers/retail bins etc…an errant PVC container may find its way into the bin and be sent with the rest for recycling. Some of the plastics that are collected do get separated and disposed of, but others are sent to be recycled as a low-grade plastic mixture that’s often used in plastic lumber applications where it’s mixed with sawdust or something and used for fencing or benches or sometimes decking.

Second, you idea about having consumers separate their goods from its packaging before they leave the store and deposit it into appropriate bins for recycling is a good one. It is in fact being done in Europe and I believe parts of Canada (don’t quote me on that) where they have EPR programs in place. If you do in fact pursue that option I would LOVE to follow it since it’s an approach that we think would allow a high level of recovery while maintaining a clean stream. BUT of course it introduces the problem of financing and retail acceptance (they don’t always want to put bins in their stores…particularly in the front where everybody can see them) not to mention changing the consumer’s behavior to unwrap their product in the store instead of at home where they are accustomed to doing it. The other issue I’ve heard is related to returns (often you’re required to return the product in its original packaging). Not that these are issues that can’t be addressed, but they would need to be though about and dealt with somehow. Again…VERY exciting and if you go that way, I’d love to watch or be more involved somehow.

Third, as I think I’ve mentioned before, Pyrolosis may be the best option for you and if it works and meets your goals and expectations, then by all means pursue it. It’s not really an option for us (in California) right now, but who’s to say what will happen in the future? Keep me updated on it if you go that direction.

Fourth, your assumption that your PET clamshells should be compatible with the PET bottle stream is correct. If you could somehow guarantee a certain level of cleanliness (both free of food/product contamination as well as free from various other resin contamination) then it should in fact be compatible. From what I understand, Starbucks first had a University test the recycling process of corrugated containers with their cups and proved that they did in fact work. Then they started piloting the project, collecting the cups and sending them to be mixed into a real-life recycler with corrugated. The recycler is then sending samples of the finished board for testing to be sure it meets the same specs as recycled board with NO cups. This recycler though is known for being able to take and separate ANYTHING so they may not work for everybody, but it’s a foot in the door. People can see that it can be done and it won’t degrade the product. Then it’s a matter of finding the contamination level that other recyclers are comfortable with and making the stream clean enough for them (that’s the next step). If you were collecting at retail, you’d have some control over stream cleanliness. Of course, if PVC were banned…it’s help your cause immensely as well as you’d no longer have to deal with recyclers worrying about PVC messing up the clamshell stream.

I’m busy dealing with synthetic turf field issues and recycled paper issues at the moment, plus of course my usual EPR related issues. Meetings, reports, dealing with lobbyists!! My life is busy in a boring way!!

Whew!!! That was a marathon of an email, huh?!?! 

We’ll have to chat again soon, but maybe next time parceled out into smaller portions. I’m a number of years out of college and not as mentally nimble as you are anymore!! God…getting old at 30! That’s terrible!!

Maybe if you have any specific questions about any of these topics, we can get together on the phone so that we can discuss a bit more casually rather than having to get everything down in an email.

Take care…gotta go to yoga now and relax my brain for a few moments!

Robert

Tune in tomorrow for some feedback from the Environmental Director of Starbucks! Good luck getting through the rest of the day!

Cheers!

After sending out several emails to contacts in different organizations (who wish to remain anonymous), I received the following information about non-bottle PET recycling. Hopefully you will find this information as valuable as I did in my journey to discover why PET clamshells, blisters, trays and components are not recycled in most American communities.

Quick answers:

1. Including blister packs into PET bottle recyclate is unlikely to be good idea;
2. Clear PET trays might be technically okay to be mixed in with PET bottles – but there is a sorting problem due to PVC;
3. PET trays/clamshells/blister packs could be sorted out of the residual mixed plastics waste to make an rPET grade – although this may prove to be more restricted in markets than bottle recyclate.

PET types

Blister packs that aren’t PVC generally use a copolymer of PET called PET-G or PETG. This is softer and tougher than standard PET and can’t crystallize, so is used for some PET films and thin sheet applications because the manufacturing is easier (even though the material is a bit more expensive). ?Some clamshells and trays use PET-G, but most will use standard PET identical to that used for bottles. All ovenable frozen food trays use crystallized PET as they need to stay rigid at high temperature – this is chemically identical to bottle grade, but most frozen food trays are pigmented anyway?

PET-G can be a problem in PET recycling. A little bit probably would never be noticed, but if significant sources of PET-G were going to be used as feedstock for any particular process, this would have to be fully tested in trials by the re-processor and the end-users – recyclate for use in bottles (made by injection stretch blow molding) might not be able to accept much PET-G without quality problems, but a recyclate intended for trays or clamshells (made by sheet extrusion and thermoforming) might be fine.

PVC Issue

Getting PET packages recycled also depends on the confidence and cost of being able to extract the PET from the commingled plastics without excessive PVC contamination, which degrades at PET processing temperatures (causes yellowing, black specks and may affect food-contact status)

Since clear PVC is widely used in these sort of packages as well as PET and the two are visually indistinguishable except by inspection of the plastics code (if present) then manual pre-sorting and final checking won’t be feasible based on container shape as it is for bottles. Therefore the automatic sorting would have to start from a very high contamination level– this increases the difficulty of getting to a low enough level of PVC content.

With PET bottle recycling, it is already a little difficult to keep PVC low enough, as PVC gets into the bottle stream anyway in the form of labels and cap liners – if you tried to include trays etc, then only a few PVC packs would need to sneak through the sort process to downgrade a batch.

Hence, recyclers are hesitant to include PET clamshells, trays etc with sorted PET bottles because they might end up with lower incomes despite the higher volumes.

All this means to me that it is more sensible to try to get PET clamshells and trays from the mixed plastics fraction (after already removing bottles) and finding a market for that quality of rPET, rather than trying to sort bottles and clamshells/trays together. This is the approach being tested by WRAP (Nextek are running a project for them).

Okay…so based on this insight, it is more feasible to create a new end-market for mixed rigid plastic material than to try and integrate our PET packages into the existing PET-bottle recycling infrastructure…

That’s all for today folks; I think we should all let this information sink in. Tune in tomorrow for more discoveries about recycling in America!