Interesting, thanks.One of my first jobs out of high school was working on a huge printing press that printed those bags. Next to us was the machines that cut the rolls we printed. They used the same poly film from extrusion to cut unprinted bags for garbage cans as we used to print grocery bags. (Not the black garbage bags, I don’t know what film that is) That was a number of years ago, I’m sure there are changes in poly composition now. We had two main types, the poly, and high density. The high density was our favorite because you’d put one roll on the press and it’s go for 2 hours. Often grocery store orders were for 10 million plus, so that’s a lot of bags. I think it was only recently that that film was added to the recyclables.
I feel they didn't pack the bags the same, or they were more generous with the number of bags they would use. And/or maybe the quality was better.as I said maybe it’s my age but somehow my family got along fine with them in the 60s/70s.