Editor's Note: We received this email from IRgA member Tom Taubenheim, and confirmed with Macgoulds that they in fact carry these bags.
For the past roughly 15 years, we ordered the plastic 4 mil self-sealing blueprint mailing bags from a company formerly called Quick Wrap Bags who later changed their name to Planpack a few years ago. We tried to order, call and email with no response. They apparently went out of business recently. I verified this with the brother of the Quick Wrap Bags owner who runs Macgoulds, a competitor to Planpack. They are located in Vernon Hills, IL.
Anyway, I spent the last few days trying to find a new supplier for these bags that we order about 15,000 at a time, multiple times a year. If other repro shops are like me, they use this type of bag and are now or soon to be trying to reorder with no success. I just happened to stumble across the Macgoulds website but they were listed about 30 or 40 down the list on Google.
http://www.macgoulds.com/blueprint-shipping-bags/
Tom Taubenheim
President, A/E Graphics