Moleskine covers contain PVC?

I don’t own a moleskine so I can’t verify it, but Joe from engraveyourbook.com claims that he had a ‘organic chemistry test’ done on a piece of the cover that informed him that it was composed of vinyl (PVC).

PVC fumes are highly toxic to breathe in and are also damaging to laser engravers’ innards. So if you are in the business of laser-engraving them, you may want to hold off until the safety (or toxicity) is verified.

Note that having a laser-engraved moleskine is probably not so bad, just wash it off to make sure there’s no dust left.

[note: if you have a moleskine, you can try 'pulling' a corner. If it stretches, its almost certainly vinyl.]

Filed under: arduino,random — by ladyada, posted July 11, 2008 at 9:50 pm


Try Adafruit's new iPhone & iPad app for makers! Circuit Playground! "Incredibly handy for anyone working in electronics. Perfect for engineers and non-engineers alike."
Looking for engineers, makers and the builders of dreams? Try our Adafruit job boards.
Join our weekly Adafruit SHOW-AND-TELL at 9:30pm ET every Saturday night! Then at 10pm, ASK-AN-ENGINEER with Ladyada and the Adafruit team!

4 Comments

  1. I would like to note that PVC itself is not toxic–even fine PVC powders pose little to no threat. Rather, the fumes and smoke from burning PVC may contain toxic compounds.

    (This isn’t a contradiction, but is instead more of a clarification…)

    Comment by ccarlson — July 12, 2008 @ 6:49 am

  2. thanks for the clarification. for some reason i thought that since the fumes were not so good, that dust particles were not too hot either, but now i remember that its actually chlorine gas not particulate matter that’s toxic.

    either way, the final product is safe, its the process that isnt too awesome.

    Comment by ladyada — July 12, 2008 @ 10:24 am

  3. Here’s the scoop on lasering moleskines:

    Moleskine covers have PVC in them. PVC (aka Polyvinyl Chloride, aka vinyl) gives off chlorine gas when burned (lasered). However, when chlorine gas mixes with hydrogen (like in the air) it creates vaporized Hydrochloric acid. There is air in your laser (obviously), thus the reaction happens as soon as the material is lasered. It will be corrosive to the inside of your laser, especially the lens (since the lens is closest to the engraving surface).

    There’s a way to check for the PVC (chlorine) content of any material, check online for a cool video that goes into checking for chlorine for laser material.

    Comment by Pete B — July 27, 2009 @ 7:57 pm

  4. Hi !

    I m a laser etcher. I m looking for the “cool video that goes into checking for chlorine for laser material” mentioned above !

    mail to : sarl.mrbeam@gmail.com

    Thx

    Comment by Mr Beam — December 23, 2009 @ 7:52 am

RSS feed for comments on this post.

Sorry, the comment form is closed at this time.

www.flickr.com
adafruit's items Go to adafruit's photostream
www.flickr.com
items in Adafruits More in Adafruits pool