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  • What is Prryolidone?

    Does anybody know what Pyrrolidone is? I think it is used in inks and fountain solutions. I have not seen it on any MSDS sheets. If it is used in our industry it must less than 1% volume of the product so it doesn't have to be listed on an MSDS sheet.

  • #2
    Answer - Prrolidone,

    A reactive solvent of UV resins used in UV Printing Inks.

    Regards, Alois

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    • #3
      Is this stuff save to use in food,Pharmaceutical, and cosmetic packaging?

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      • #4
        I think it is spelled pyrrolidone. Try Google.

        Al

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        • #5
          Interesting that pyrrolidone is on the UE REACH list

          Candidate List table - ECHA


          Pyrrolidone page link Candidate List table - ECHA

          We have never had pyrrolidone in our facility. Many manufacturers use it in inks and fountain solutions. Does any of the Fogra approved chemistry have Pyrrolidone in them? I would bet so.

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          • #6
            Isn't pyrrolidone a decoupler. Using it at high concentration say over 40% it has the ability to turn polymers and plastics into a goo. At very low concentration say under 1% over a few months it will make most types of polymers hard and brittle and or gooie. This would help in the explanation of seals going bad in the German press fogra post.
            Last edited by Sustainable; 02-08-2012, 09:39 AM.

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            • #7
              Originally posted by Sustainable View Post
              Isn't pyrrolidone a decoupler. Using it at high concentration say over 40% it has the ability to turn polymers and plastics into a goo. At very low concentration say under 1% over a few months it will make almost types of polymers hard and brittle and or gooie. This would help in the explanation of seals going bad in the German press fogra post.
              Sustainable very good point on the seals. I checked with our chemistry and wash supplier. They informed me that the EU REACH information is on our MSDS sheets.

              EU REACH (ECHA) - Substances of Very High Concern None of the components in this product are listed.

              This means that there are no EU REACH Substances of Very High Concern in the product.

              I will certainly continue to buy our press rooms supplies from BestChem & Supply. Knowing that they meet EU REACH Specifications along with all of the US MSDS regulations makes me feel pretty good about our choice of suppliers.

              Thank you Sustainable

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              • #8
                If this is the case (which I don't doubt), what does it do to the rubber in the rollers???

                Al

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                • #9
                  Originally posted by Al Ferrari View Post
                  If this is the case (which I don't doubt), what does it do to the rubber in the rollers???

                  Al
                  Al I think that the roller manufacturer should step in on this.

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                  • #10
                    Is this the same as 1 OCTYL-2-PYRROIDONE Cas#2687-94-7 ?

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                    • #11
                      Originally posted by Lukew View Post
                      Is this the same as 1 OCTYL-2-PYRROIDONE Cas#2687-94-7 ?

                      MSDS information for 2687-94-7


                      MSDS for 872-50-4 http://www.phy.duke.edu/research/pho...yrrolidone.pdf

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                      • #12
                        Ok so not the same chemical. That is good news.
                        Our fountain solution has 1 OCTYL-2-PYRROIDONE Cas#2687-94-7 at less than 2%

                        Even if a fountain solution did have pyrroidone in it at a very low % , once the fount is mixed with water at its correct % the actual amount of pyrroidone in the system/press would be very minimal.

                        Although if it is in roller washes that could be cause of concern

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                        • #13
                          Originally posted by Al Ferrari View Post
                          If this is the case (which I don't doubt), what does it do to the rubber in the rollers???

                          Al
                          Al there will not be any responses to this. It is a catch 22 for both the wash supplier and the roller manufacturer. Since they both already know what it does they cannot comment.
                          Now lets look at it in a different way maybe they honestly don't know. If this is the case then they are ignorant of their product and cannot recommend a wash and roller compound that is compatible. Either way the printer ends up paying for wash that can eat up his rollers or buy rollers that will be eaten up by the wash.

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                          • #14
                            Originally posted by Lukew View Post
                            Ok so not the same chemical. That is good news.
                            Our fountain solution has 1 OCTYL-2-PYRROIDONE Cas#2687-94-7 at less than 2%

                            Even if a fountain solution did have pyrroidone in it at a very low % , once the fount is mixed with water at its correct % the actual amount of pyrroidone in the system/press would be very minimal.

                            Although if it is in roller washes that could be cause of concern
                            Lukew is this a Fogra approved fountain solution?

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                            • #15
                              Originally posted by Lukew View Post
                              Ok so not the same chemical. That is good news.
                              Our fountain solution has 1 OCTYL-2-PYRROIDONE Cas#2687-94-7 at less than 2%

                              Even if a fountain solution did have pyrroidone in it at a very low % , once the fount is mixed with water at its correct % the actual amount of pyrroidone in the system/press would be very minimal.

                              Although if it is in roller washes that could be cause of concern
                              Lukew
                              Octyl or Methyl they are equally nasty and both exhibit the same reproductive troubles.

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