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fine lines breaking up on press?!?

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  • Katelynn Corrigan
    Hello, We were having a frustrating plate problem and ended up throwing in the towel for the day. It s a buisness stationary suite which uses some fairly, but
    Message 1 of 18 , Jun 9, 2010
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      Hello,

      We were having a frustrating plate problem and ended up throwing in the towel for the day.

      It's a buisness stationary suite which uses some fairly, but not terribly, small sizes of Bodoni (or a similar, high contrast modern face.) Some characters- actually, it's worst on glyphs like "/" and "#", and lightly-less-than-worst on caps like "N"- are breaking down on press after a few dozen impressions.  It is happening most dramatically on the business card, which is being printed on 90 lb Crane's Crest cover.  (There were NO problems with this same size and style type on the letterhead, oddly.)

      The plates (Nyloprint, high relief) were initially burned ganged up, on two large scraps of plate material. When the "/" and a "N" on the business card went wavy, I reburnt it by itself, thinking that perhaps I hadn't dried the original one long enough, or forgot to post expose it, or something. I burnt it for an extra 30 seconds, was very careful that it was not overwashed, and thought everything would be fine. However, the same problem repeated itself. We burnt the plate a third time- this time with a five minute exposure and deliberate under-washing (a nice 'pool' of polymer around the type area) to be extra safe. On the first few proofs, it looked great. However, again, after a few dozen, the lines are breaking down.

      The plate maker is a Jet, about 10 years old. The bulbs and starters are only a few months old. The vinyl cover sheet is also new. The brushes were replaced last year.  The water was changed today.

      I think part of the problem is (of course) the amount of impression I'm giving the type (oh, we've also tried soft packing vs hard packing too- problem doesn't go away) but this is a big money job and it needs to scream letterpress from across the state line, apparently. Not my aesthetic, but it's how the bills get paid. Its sure going to look silly if I have to kiss this part of the card when the other 3 passes on it are punched through, that's for sure.

      I'm really hoping to be able to figure this out and not have to tell the designer that I can't print type that small, because I know I should be able to. I'm out of ideas at the moment. If anyone has any suggestions, I'd be happy to have something to start with tomorrow morning.

      Thank you,

      -Katey






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    • Peter Fraterdeus
      I d definitely increase the post-exposure... Really hard to say other than that. It can be absolutely maddening. The fall back would be to send out for Mag
      Message 2 of 18 , Jun 9, 2010
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        I'd definitely increase the post-exposure...

        Really hard to say other than that. It can be absolutely maddening.

        The fall back would be to send out for Mag plates!

        Good luck!!

        Peter

        On 9 Jun 2010, at 7:54 PM, Katelynn Corrigan wrote:



        Hello,

        We were having a frustrating plate problem and ended up throwing in the towel for the day.

        It's a buisness stationary suite which uses some fairly, but not terribly, small sizes of Bodoni (or a similar, high contrast modern face.) Some characters- actually, it's worst on glyphs like "/" and "#", and lightly-less-than-worst on caps like "N"- are breaking down on press after a few dozen impressions.  It is happening most dramatically on the business card, which is being printed on 90 lb Crane's Crest cover.  (There were NO problems with this same size and style type on the letterhead, oddly.)

        The plates (Nyloprint, high relief) were initially burned ganged up, on two large scraps of plate material. When the "/" and a "N" on the business card went wavy, I reburnt it by itself, thinking that perhaps I hadn't dried the original one long enough, or forgot to post expose it, or something. I burnt it for an extra 30 seconds, was very careful that it was not overwashed, and thought everything would be fine. However, the same problem repeated itself. We burnt the plate a third time- this time with a five minute exposure and deliberate under-washing (a nice 'pool' of polymer around the type area) to be extra safe. On the first few proofs, it looked great. However, again, after a few dozen, the lines are breaking down.

        The plate maker is a Jet, about 10 years old. The bulbs and starters are only a few months old. The vinyl cover sheet is also new. The brushes were replaced last year.  The water was changed today. 

        I think part of the problem is (of course) the amount of impression I'm giving the type (oh, we've also tried soft packing vs hard packing too- problem doesn't go away) but this is a big money job and it needs to scream letterpress from across the state line, apparently. Not my aesthetic, but it's how the bills get paid. Its sure going to look silly if I have to kiss this part of the card when the other 3 passes on it are punched through, that's for sure.

        I'm really hoping to be able to figure this out and not have to tell the designer that I can't print type that small, because I know I should be able to. I'm out of ideas at the moment. If anyone has any suggestions, I'd be happy to have something to start with tomorrow morning.

        Thank you,

        -Katey


        Peter Fraterdeus
        Exquisite letterpress takes time™ 

        IdeasWords : Idea Swords
        Communication Strategy
        Semiotx.com  @ideaswords

      • Ed Inman
        Yes I agree with what Peter says. But I also suspect you may be simply hitting it too hard. Small type--especially just an isolated line or two, will not need
        Message 3 of 18 , Jun 9, 2010
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          Yes I agree with what Peter says. But I also suspect you may be simply hitting it too hard. 
          Small type--especially just an isolated line or two, will not need as much impression strength to print well and deboss the card stock as will a large solid area. Nor will it require as much ink as a large solid area will.
          For this reason you may find it to your advantage to print any large solids and small type in two separate runs from two separate plates even if both are the same color--reducing the impression strength on the smaller elements.
          Ed


          -----Original Message-----
          From: Peter Fraterdeus
          Sent: Jun 9, 2010 8:09 PM
          To: PPLetterpress@yahoogroups.com
          Subject: Re: [PPLetterpress] fine lines breaking up on press?!?



          I'd definitely increase the post-exposure...

          Really hard to say other than that. It can be absolutely maddening.

          The fall back would be to send out for Mag plates!

          Good luck!!

          Peter

          On 9 Jun 2010, at 7:54 PM, Katelynn Corrigan wrote:



          Hello,

          We were having a frustrating plate problem and ended up throwing in the towel for the day.

          It's a buisness stationary suite which uses some fairly, but not terribly, small sizes of Bodoni (or a similar, high contrast modern face.) Some characters- actually, it's worst on glyphs like "/" and "#", and lightly-less-than-worst on caps like "N"- are breaking down on press after a few dozen impressions.  It is happening most dramatically on the business card, which is being printed on 90 lb Crane's Crest cover.  (There were NO problems with this same size and style type on the letterhead, oddly.)

          The plates (Nyloprint, high relief) were initially burned ganged up, on two large scraps of plate material. When the "/" and a "N" on the business card went wavy, I reburnt it by itself, thinking that perhaps I hadn't dried the original one long enough, or forgot to post expose it, or something. I burnt it for an extra 30 seconds, was very careful that it was not overwashed, and thought everything would be fine. However, the same problem repeated itself. We burnt the plate a third time- this time with a five minute exposure and deliberate under-washing (a nice 'pool' of polymer around the type area) to be extra safe. On the first few proofs, it looked great. However, again, after a few dozen, the lines are breaking down.

          The plate maker is a Jet, about 10 years old. The bulbs and starters are only a few months old. The vinyl cover sheet is also new. The brushes were replaced last year.  The water was changed today. 

          I think part of the problem is (of course) the amount of impression I'm giving the type (oh, we've also tried soft packing vs hard packing too- problem doesn't go away) but this is a big money job and it needs to scream letterpress from across the state line, apparently. Not my aesthetic, but it's how the bills get paid. Its sure going to look silly if I have to kiss this part of the card when the other 3 passes on it are punched through, that's for sure.

          I'm really hoping to be able to figure this out and not have to tell the designer that I can't print type that small, because I know I should be able to. I'm out of ideas at the moment. If anyone has any suggestions, I'd be happy to have something to start with tomorrow morning.

          Thank you,

          -Katey


          Peter Fraterdeus
          Exquisite letterpress takes time™ 

          IdeasWords : Idea Swords
          Communication Strategy
          Semiotx.com  @ideaswords



        • heytrollop
          I had a similar problem when I used some older plates (old before I exposed them). I eventually just got fresh plates and everything was fine. I also had a
          Message 4 of 18 , Jun 9, 2010
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            I had a similar problem when I used some older plates (old before I exposed them). I eventually just got fresh plates and everything was fine.
            I also had a bride who wanted heavy impression. sigh.

            Raven

            --- In PPLetterpress@yahoogroups.com, Katelynn Corrigan <crazyprettybird@...> wrote:
            >
            >
            > Hello,
            >
            > We were having a frustrating plate problem and ended up throwing in the towel for the day.
            >
            > It's a buisness stationary suite which uses some fairly, but not terribly, small sizes of Bodoni (or a similar, high contrast modern face.) Some characters- actually, it's worst on glyphs like "/" and "#", and lightly-less-than-worst on caps like "N"- are breaking down on press after a few dozen impressions. It is happening most dramatically on the business card, which is being printed on 90 lb Crane's Crest cover. (There were NO problems with this same size and style type on the letterhead, oddly.)
            >
            > The plates (Nyloprint, high relief) were initially burned ganged up, on two large scraps of plate material. When the "/" and a "N" on the business card went wavy, I reburnt it by itself, thinking that perhaps I hadn't dried the original one long enough, or forgot to post expose it, or something. I burnt it for an extra 30 seconds, was very careful that it was not overwashed, and thought everything would be fine. However, the same problem repeated itself. We burnt the plate a third time- this time with a five minute exposure and deliberate under-washing (a nice 'pool' of polymer around the type area) to be extra safe. On the first few proofs, it looked great. However, again, after a few dozen, the lines are breaking down.
            >
            > The plate maker is a Jet, about 10 years old. The bulbs and starters are only a few months old. The vinyl cover sheet is also new. The brushes were replaced last year. The water was changed today.
            >
            > I think part of the problem is (of course) the amount of impression I'm giving the type (oh, we've also tried soft packing vs hard packing too- problem doesn't go away) but this is a big money job and it needs to scream letterpress from across the state line, apparently. Not my aesthetic, but it's how the bills get paid. Its sure going to look silly if I have to kiss this part of the card when the other 3 passes on it are punched through, that's for sure.
            >
            > I'm really hoping to be able to figure this out and not have to tell the designer that I can't print type that small, because I know I should be able to. I'm out of ideas at the moment. If anyone has any suggestions, I'd be happy to have something to start with tomorrow morning.
            >
            > Thank you,
            >
            > -Katey
            >
            >
            >
            >
            >
            > _________________________________________________________________
            > Hotmail is redefining busy with tools for the New Busy. Get more from your inbox.
            > http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_2
            >
          • Gerald Lange
            Raven Yeah, that was my initial reaction too. Any raw material over a year old is a bit suspect. You need to keep your stock fresh. And toss or recyle the
            Message 5 of 18 , Jun 9, 2010
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              Raven

              Yeah, that was my initial reaction too. Any raw material over a year old
              is a bit suspect. You need to keep your stock fresh. And toss or recyle
              the scraps.

              Though you can revive raw photopolymer and old processed plates with a
              carbon dioxide bath. Build a sealed box with wire shelving and load the
              bottom of it with dry ice. You'll be pleasantly surprised. Not a new
              idea, it's how they did it initially, way back when before photopolymer
              plates were considered disposable.

              Though this particular question may very well be just be the commonplace
              situation of too small a point size of an inappropriate typeface under
              an impression that is simply too extreme. Maybe go to a professional
              platemaker and see if the results are different. Or go to mounted copper
              photomechancial engravings, as they will hold isolated elements like
              fine lines or dots, far better than photopolymer in this regard.

              Gerald
              http://BielerPress.blogspot.com



              On 6/9/10 8:48 PM, heytrollop wrote:
              > I had a similar problem when I used some older plates (old before I exposed them). I eventually just got fresh plates and everything was fine.
              > I also had a bride who wanted heavy impression. sigh.
              >
              > Raven
              >
              > --- In PPLetterpress@yahoogroups.com, Katelynn Corrigan<crazyprettybird@...> wrote:
              >
              >>
              >> Hello,
              >>
              >> We were having a frustrating plate problem and ended up throwing in the towel for the day.
              >>
              >> It's a buisness stationary suite which uses some fairly, but not terribly, small sizes of Bodoni (or a similar, high contrast modern face.) Some characters- actually, it's worst on glyphs like "/" and "#", and lightly-less-than-worst on caps like "N"- are breaking down on press after a few dozen impressions. It is happening most dramatically on the business card, which is being printed on 90 lb Crane's Crest cover. (There were NO problems with this same size and style type on the letterhead, oddly.)
              >>
              >> The plates (Nyloprint, high relief) were initially burned ganged up, on two large scraps of plate material. When the "/" and a "N" on the business card went wavy, I reburnt it by itself, thinking that perhaps I hadn't dried the original one long enough, or forgot to post expose it, or something. I burnt it for an extra 30 seconds, was very careful that it was not overwashed, and thought everything would be fine. However, the same problem repeated itself. We burnt the plate a third time- this time with a five minute exposure and deliberate under-washing (a nice 'pool' of polymer around the type area) to be extra safe. On the first few proofs, it looked great. However, again, after a few dozen, the lines are breaking down.
              >>
              >> The plate maker is a Jet, about 10 years old. The bulbs and starters are only a few months old. The vinyl cover sheet is also new. The brushes were replaced last year. The water was changed today.
              >>
              >> I think part of the problem is (of course) the amount of impression I'm giving the type (oh, we've also tried soft packing vs hard packing too- problem doesn't go away) but this is a big money job and it needs to scream letterpress from across the state line, apparently. Not my aesthetic, but it's how the bills get paid. Its sure going to look silly if I have to kiss this part of the card when the other 3 passes on it are punched through, that's for sure.
              >>
              >> I'm really hoping to be able to figure this out and not have to tell the designer that I can't print type that small, because I know I should be able to. I'm out of ideas at the moment. If anyone has any suggestions, I'd be happy to have something to start with tomorrow morning.
              >>
              >> Thank you,
              >>
              >> -Katey
              >>
            • Scott Rubel
              Could it be defective plate chemistry, where it just will not get hard enough? If the first impressions are pleasing and then it breaks down, then it just must
              Message 6 of 18 , Jun 9, 2010
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                Could it be defective plate chemistry, where it just will not get hard enough? If the first impressions are pleasing and then it breaks down, then it just must be the hardness of the plate.

                That's barring any other chemical situation, like if the plates are getting moist somehow, even from freakishly high humidity.

                The only way to know is have a set of plates made by someone else, or order new plate stock, I guess.

                How awful. Sorry this this happening.

                --Scott

                On Jun 9, 2010, at 5:54 PM, Katelynn Corrigan wrote:



                Hello,

                We were having a frustrating plate problem and ended up throwing in the towel for the day.

                It's a buisness stationary suite which uses some fairly, but not terribly, small sizes of Bodoni (or a similar, high contrast modern face.) Some characters- actually, it's worst on glyphs like "/" and "#", and lightly-less-than-worst on caps like "N"- are breaking down on press after a few dozen impressions.  It is happening most dramatically on the business card, which is being printed on 90 lb Crane's Crest cover.  (There were NO problems with this same size and style type on the letterhead, oddly.)

                The plates (Nyloprint, high relief) were initially burned ganged up, on two large scraps of plate material. When the "/" and a "N" on the business card went wavy, I reburnt it by itself, thinking that perhaps I hadn't dried the original one long enough, or forgot to post expose it, or something. I burnt it for an extra 30 seconds, was very careful that it was not overwashed, and thought everything would be fine. However, the same problem repeated itself. We burnt the plate a third time- this time with a five minute exposure and deliberate under-washing (a nice 'pool' of polymer around the type area) to be extra safe. On the first few proofs, it looked great. However, again, after a few dozen, the lines are breaking down.

                The plate maker is a Jet, about 10 years old. The bulbs and starters are only a few months old. The vinyl cover sheet is also new. The brushes were replaced last year.  The water was changed today. 

                I think part of the problem is (of course) the amount of impression I'm giving the type (oh, we've also tried soft packing vs hard packing too- problem d oesn't go away) but this is a big money job and it needs to scream letterpress from across the state line, apparently. Not my aesthetic, but it's how the bills get paid. Its sure going to look silly if I have to kiss this part of the card when the other 3 passes on it are punched through, that's for sure.

                I'm really hoping to be able to figure this out and not have to tell the designer that I can't print type that small, because I know I should be able to. I'm out of ideas at the moment. If anyone has any suggestions, I'd be happy to have something to start with tomorrow morning.

                Thank you,

                -Katey


              • Ed Inman
                When it s plastic vs. iron guess which one wins (LOL). -----Original Message----- From: Scott Rubel If the first impressions are pleasing and then it breaks
                Message 7 of 18 , Jun 9, 2010
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                  When it's plastic vs. iron guess which one wins (LOL).


                  -----Original Message-----
                  From: Scott Rubel
                  If the first impressions are pleasing and then it breaks down, then it just must be the hardness of the plate.

                • Gerald Lange
                  Generally, when it is a photpolymer plate mounted on an appropriate base versus a photomechanical plate mounted on wood, it would be the former, hands down.
                  Message 8 of 18 , Jun 10, 2010
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                    Generally, when it is a photpolymer plate mounted on an appropriate base versus a photomechanical plate mounted on wood, it would be the former, hands down. Who makes iron plates? And what is it in the chemistry that would actually make one think photopolymer plate material is plastic?

                    Gerald
                    http://BielerPress.blogspot.com

                    On 6/9/10 10:48 PM, Ed Inman wrote: When it's plastic vs. iron guess which one wins (LOL).


                    -----Original Message-----
                    From: Scott Rubel
                    If the first impressions are pleasing and then it breaks down, then it just must be the hardness of the plate.


                  • Peter Fraterdeus
                    I assume Ed refers to the press... iron, steel, ya know... P ... Peter Fraterdeus Exquisite letterpress takes time™ http://slowprint.com/ IdeasWords : Idea
                    Message 9 of 18 , Jun 10, 2010
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                      I assume Ed refers to the press...  iron, steel, ya know...

                      P

                      On 10 Jun 2010, at 2:44 AM, Gerald Lange wrote:



                      Generally, when it is a photpolymer plate mounted on an appropriate base versus a photomechanical plate mounted on wood, it would be the former, hands down. Who makes iron plates? And what is it in the chemistry that would actually make one think photopolymer plate material is plastic?

                      Gerald
                      http://BielerPress.blogspot.com

                      On 6/9/10 10:48 PM, Ed Inman wrote:
                      When it's plastic vs. iron guess which one wins (LOL).


                      -----Original Message----- 
                      From: Scott Rubel 
                      If the first impressions are pleasing and then it breaks down, then it just must be the hardness of the plate.

                      Peter Fraterdeus
                      Exquisite letterpress takes time™ 

                      IdeasWords : Idea Swords
                      Communication Strategy
                      Semiotx.com  @ideaswords

                    • Studio On Fire
                      The one thing that jumped out at me in your problem description for printing very fine details was two words: High Relief. We ve battled with high relief
                      Message 10 of 18 , Jun 10, 2010
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                        The one thing that jumped out at me in your problem description for printing very fine details was two words: High Relief. 

                        We've battled with high relief material before only finding a solution in moving to a low relief material. You are battling trying to hold a fine detail high atop a thick subsurface. Decrease the height of that subsurface by moving to a thinner plate material and you gain some dimensional stability. You can still print low relief plate with your high relief base, just add a layer of press board behind your base to build up the height.

                        Ben Levitz
                        Studio On Fire

                        beastpieces.com // studioonfire.com

                      • Christian Morrison
                        We had this problem occasionally too. We normally use PrintTight KF95 but have recently added EF95 to our plate stock. The EF material, while quite a bit
                        Message 11 of 18 , Jun 10, 2010
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                          We had this problem occasionally too. We normally use PrintTight KF95 but have recently added EF95 to our plate stock. The EF material, while quite a bit softer in "shore" than KF, renders fine lines and dots very well. We now run .25pt hairlines regularly with no washing out or shifting on the plate. Everything you're doing sounds right, but I think it's worth it to check out the exposure using a stouffer scale or whatever calibrating scale you use, and then try a sheet of EF.

                          Good luck,

                          Christian

                          --- In PPLetterpress@yahoogroups.com, Katelynn Corrigan <crazyprettybird@...> wrote:
                          >
                          >
                          > Hello,
                          >
                          > We were having a frustrating plate problem and ended up throwing in the towel for the day.
                          >
                          > It's a buisness stationary suite which uses some fairly, but not terribly, small sizes of Bodoni (or a similar, high contrast modern face.) Some characters- actually, it's worst on glyphs like "/" and "#", and lightly-less-than-worst on caps like "N"- are breaking down on press after a few dozen impressions. It is happening most dramatically on the business card, which is being printed on 90 lb Crane's Crest cover. (There were NO problems with this same size and style type on the letterhead, oddly.)
                          >
                          > The plates (Nyloprint, high relief) were initially burned ganged up, on two large scraps of plate material. When the "/" and a "N" on the business card went wavy, I reburnt it by itself, thinking that perhaps I hadn't dried the original one long enough, or forgot to post expose it, or something. I burnt it for an extra 30 seconds, was very careful that it was not overwashed, and thought everything would be fine. However, the same problem repeated itself. We burnt the plate a third time- this time with a five minute exposure and deliberate under-washing (a nice 'pool' of polymer around the type area) to be extra safe. On the first few proofs, it looked great. However, again, after a few dozen, the lines are breaking down.
                          >
                          > The plate maker is a Jet, about 10 years old. The bulbs and starters are only a few months old. The vinyl cover sheet is also new. The brushes were replaced last year. The water was changed today.
                          >
                          > I think part of the problem is (of course) the amount of impression I'm giving the type (oh, we've also tried soft packing vs hard packing too- problem doesn't go away) but this is a big money job and it needs to scream letterpress from across the state line, apparently. Not my aesthetic, but it's how the bills get paid. Its sure going to look silly if I have to kiss this part of the card when the other 3 passes on it are punched through, that's for sure.
                          >
                          > I'm really hoping to be able to figure this out and not have to tell the designer that I can't print type that small, because I know I should be able to. I'm out of ideas at the moment. If anyone has any suggestions, I'd be happy to have something to start with tomorrow morning.
                          >
                          > Thank you,
                          >
                          > -Katey
                          >
                          >
                          >
                          >
                          >
                          > _________________________________________________________________
                          > Hotmail is redefining busy with tools for the New Busy. Get more from your inbox.
                          > http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_2
                          >
                        • Ed Inman
                          By iron I was simply referring the relative strength of a press vs. the strength of a plate (and the ability of the former to cause damage to the latter if
                          Message 12 of 18 , Jun 10, 2010
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                            By "iron" I was simply referring the relative strength of a press vs. the strength of a plate (and the ability of the former to cause damage to the latter if too much pressure is used). 
                            Not trying to argue superiority of one type of plate over another. 
                            Ed


                            -----Original Message-----
                            From: Gerald Lange
                            Sent: Jun 10, 2010 2:44 AM
                            To: PPLetterpress@yahoogroups.com
                            Subject: Re: [PPLetterpress] fine lines breaking up on press?!?



                            Generally, when it is a photpolymer plate mounted on an appropriate base versus a photomechanical plate mounted on wood, it would be the former, hands down. Who makes iron plates? And what is it in the chemistry that would actually make one think photopolymer plate material is plastic?

                            Gerald
                            http://BielerPress.blogspot.com

                            On 6/9/10 10:48 PM, Ed Inman wrote:
                            When it's plastic vs. iron guess which one wins (LOL).


                            -----Original Message-----
                            From: Scott Rubel
                            If the first impressions are pleasing and then it breaks down, then it just must be the hardness of the plate.




                          • Katherine Bridges
                            I don t know who makes your film, but I ve found that certain jobs require slightly different exposure strengths on the imagesetter. In particular, one regular
                            Message 13 of 18 , Jun 10, 2010
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                              I don't know who makes your film, but I've found that certain jobs require slightly different exposure strengths on the imagesetter. In particular, one regular business card client at PKE used tiny Bauer Bodoni type and required a slightly lower exposure setting to make sure those tiny serifs showed up & had enough support to stay on the plate without warping. Nyloprint plates are typically great at holding small details, so perhaps this would help.


                              Kat Bridges
                            • Steve Robison
                              Maybe it was the famous reference to plastics in the movie The Graduate that has us all brainwashed,but as an FYI footnote to Gerald s previous comment, note
                              Message 14 of 18 , Jun 10, 2010
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                                Maybe it was the famous reference to "plastics" in the movie The Graduate that has us all brainwashed,but as an FYI footnote to Gerald's previous comment, note that some polymers are plastics, but certainly not all.

                                Polymer just refers to macromolecules that have long strings of repeating structural units.

                                For example, DNA, nucleic acid and proteins are all polymers and are some of the basic building blocks of life.

                                Some naturally occurring polymers are shellac, amber, rubber and cellulose, all formed as part of the process and interaction of DNA and certain proteins.

                                Some synthetic polymers are polyethylene, polystyrene, polypropylene, polyacrylonitrile, silicone, synthetic rubber, bakelite, neoprene, nylon, PVB, PVC, etc, many of them known commonly as "plastics"

                                Photopolymer is a particular polymer that hardens when exposed to ultraviolet light, which makes it a wonderful substance for relief printing using a photographic process.

                                But as previously mentioned, fine detail can only be held up by the atoms in the molecules underneath that fine detail, and sometimes the hardened photopolymer is not quite up to the task even if perfectly processed.

                                Low relief plates, crisper initial images, better exposure times, better washouts will all help.. But if after all of that fails, try stronger molecules under the fine detail, like copper plates mounted on a steel base,for example. Notice I didn't say copper mounted to a wood base, since the irregularities of wood do not always have the fine tolerances needed for ultra fine detail. But copper on a solid base cut to fine tolerance works well, and copper will hold fine detail better than zinc or magnesium.

                                So if photopolymer doesn't cut it after perfect processing, then think copper on a steel base as a possible alternative...giving you a sturdier molecular advantage. That's the way they used to do it for fine detail in the 1800's with great success, and those methods still work today...they're just less enviro friendly and sometimes a bit costlier...but not always. :-)

                                Anyway, good luck with your efforts and results, remembering that there's always more than one way to put an image on to or in to a piece of paper...

                                Best wishes,

                                --Steve

                                Steve Robison
                                The Robison Press
                                Belmont, CA
                                (about 25 miles south of San Francisco and 30 miles north of San Jose
                                robisonsteve@...

                                --- On Thu, 6/10/10, Gerald Lange <Bieler@...> wrote:

                                From: Gerald Lange <Bieler@...>
                                Subject: Re: [PPLetterpress] fine lines breaking up on press?!?
                                To: PPLetterpress@yahoogroups.com
                                Date: Thursday, June 10, 2010, 12:44 AM























                                Generally, when it is a photpolymer plate mounted on an appropriate
                                base versus a photomechanical plate mounted on wood, it would be the
                                former, hands down. Who makes iron plates? And what is it in the
                                chemistry that would actually make one think photopolymer plate
                                material is plastic?



                                Gerald

                                http://BielerPress.blogspot.com



                                On 6/9/10 10:48 PM, Ed Inman wrote:




                                #yiv1557694848 {font-family:Geneva, Arial, Helvetica, sans-serif;font-size:10pt;font-family:arial, sans-serif;background-color:#ffffff;color:black;}#yiv1557694848 p{margin:0px;}
                                When it's plastic vs. iron guess which one wins (LOL).





                                -----Original
                                Message-----


                                From: Scott Rubel


                                If the first impressions are pleasing and then it breaks down, then it
                                just must be the hardness of the plate.
                              • Peter Fraterdeus
                                Thanks Steve, I always appreciate your calming and well informed influence ;-) Cheers! Peter ... Peter Fraterdeus Exquisite letterpress takes time™
                                Message 15 of 18 , Jun 10, 2010
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                                  Thanks Steve, I always appreciate your calming and well informed influence ;-)

                                  Cheers!

                                  Peter

                                  On 10 Jun 2010, at 3:14 PM, Steve Robison wrote:

                                  > Maybe it was the famous reference to "plastics" in the movie The Graduate that has us all brainwashed,but as an FYI footnote to Gerald's previous comment, note that some polymers are plastics, but certainly not all.
                                  >
                                  > Polymer just refers to macromolecules that have long strings of repeating structural units.
                                  > ...
                                  > So if photopolymer doesn't cut it after perfect processing, then think copper on a steel base as a possible alternative...giving you a sturdier molecular advantage. That's the way they used to do it for fine detail in the 1800's with great success, and those methods still work today...they're just less enviro friendly and sometimes a bit costlier...but not always. :-)
                                  >
                                  > Anyway, good luck with your efforts and results, remembering that there's always more than one way to put an image on to or in to a piece of paper...
                                  >
                                  > Best wishes,
                                  >
                                  > --Steve
                                  >

                                  Peter Fraterdeus
                                  Exquisite letterpress takes time™
                                  http://slowprint.com/

                                  IdeasWords : Idea Swords
                                  Communication Strategy
                                  Semiotx.com @ideaswords
                                • Ed Inman
                                  For what it s worth: Encyclopedia Britannica describes photopolymer as a plastic precursor which polymerizes to an insoluble plastic when exposed to light.
                                  Message 16 of 18 , Jun 10, 2010
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                                    For what it's worth:
                                    Encyclopedia Britannica describes photopolymer as a "plastic precursor" which "polymerizes to an insoluble plastic when exposed to light."
                                    http://www.britannica.com/EBchecked/topic/458119/photopolymer-process

                                    And dictionary.com defines photopolymer as "a polymer or plastic that undergoes a change in physical or chemical properties when exposed to light."
                                    http://dictionary.reference.com/browse/photopolymer

                                    Not that I suppose that really proves anything. But I do know if you hand a photopolymer plate to any 10 year old and ask them what it's made of they will tell you "plastic." So sue me (LOL).

                                    Ed

                                    -----Original Message-----
                                    >From: Steve Robison <robisonsteve@...>
                                    >Maybe it was the famous reference to "plastics" in the movie The Graduate that has us all brainwashed,but as an FYI footnote to Gerald's previous comment, note that some polymers are plastics, but certainly not all.
                                  • bielerpr
                                    I use steel-backed plates. In that case, I suspect that your ten year old would more likely say metal or iron or something similar since that is primarily what
                                    Message 17 of 18 , Jun 11, 2010
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                                      I use steel-backed plates. In that case, I suspect that your ten year old would more likely say metal or iron or something similar since that is primarily what they are, physically, visually, and thus the most obvious. Interestingly, a client brought her son in a couple of weeks ago and showed him around, his reply when asked what he thought this might be (a processed photopolymer plate) was, "something from a computer." Smart kid. He also correctly described metal type as "letters," and type cases as "drawers."

                                      Gerald
                                      http://BielerPress.blogspot.com


                                      >
                                      > Not that I suppose that really proves anything. But I do know if you hand a photopolymer plate to any 10 year old and ask them what it's made of they will tell you "plastic." So sue me (LOL).
                                      >
                                      > Ed
                                      >
                                      > -----Original Message-----
                                      > >From: Steve Robison <robisonsteve@...>
                                      > >Maybe it was the famous reference to "plastics" in the movie The Graduate that has us all brainwashed,but as an FYI footnote to Gerald's previous comment, note that some polymers are plastics, but certainly not all.
                                      >
                                    • Peter Fraterdeus
                                      I d agree 100% with Ben here. I switched to the thinner K95(?) quite a while ago for the same reason! Peter Slowprint.com / Semiotx.com google voice 1 563 223
                                      Message 18 of 18 , Jun 11, 2010
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                                        I'd agree 100% with Ben here.
                                        I switched to the thinner K95(?) quite a while ago for the same reason!

                                        Peter

                                        Slowprint.com / Semiotx.com
                                        google voice 1 563 223 8231

                                        From iPhone plz excuse brevity!

                                        On Jun 10, 2010, at 6:44 AM, Studio On Fire <levitz@...> wrote:

                                        The one thing that jumped out at me in your problem description for printing very fine details was two words: High Relief. 

                                        We've battled with high relief material before only finding a solution in moving to a low relief material. You are battling trying to hold a fine detail high atop a thick subsurface. Decrease the height of that subsurface by moving to a thinner plate material and you gain some dimensional stability. You can still print low relief plate with your high relief base, just add a layer of press board behind your base to build up the height.

                                        Ben Levitz
                                        Studio On Fire
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