Inline Varnish Coating

[aqazi81]

We are installing an old 6 color Heidelberg SM 102. Our plan is to print varnish on the 6th printing Unit Inline with the 4/5 process colors, is it possible to print varnish inline on a dedicated printing unit?

 

[Data]

Yes

 

[The Heidelberg Guy]

Yes!

 

[turbotom1052]

there was varnish long before there was inline aqueous coating

 

[aqazi81]

Any tips and tricks for it.......because we r trying it for the 1st time....

 

[nitin77416]

I am also interested in this , we have five col machine we are also doing online coating of varnish . but we are facing problem if their is lots of work of colors.

 

[turbotom1052]

inline varnishing on top of 4/c process can be a handful for someone without experience. You need to run enough varnish to keep it from getting contaminated by the other inks but not so much as to cause problems with setoff and sticking together. always remember not to exceed the recomended total ink percentage for the particular stock you are running. Remember that inline varnish adds 100% to your total ink. If there is enough money in the job id suggest that you begin by offline varnishing the job after youve allready printed and allowed the sheet to dry. This will allow you to get a feel for laying down the right amount of varnish. It might be wise to invest in an ink film thickness guage until such time when you can judge just how much varnish your laying down. Once you feel comfortable with offline varnishing you can try an inline job. Be sure your powder is working properly, run the job in small lifts, and air out the sheets a bit after the ink has begun to set. Be extra careful in handling the wet sheets. You need to be gentle with the handling the printed loads. I try to leave the freshly printed load in the delivery until the very last minute. If a feeder load needs to be changed and blankets need to be cleaned allow the freshly printed sheets to remain unmoved in the delivery until the very last minute. This is usually easiest to do on a gloss coated sheet. Satin coated sheets and matte coated sheets require a little more care in handling. Certain smooth surfaced uncoated sheets can be very prone to problems when inline varnishing. Its really not rocket science once you get the hang of it and learn the limits of the process. Good luck and let us know how you make out.

 

[aqazi81]

Thanx Turbotom for your tips.... I will keep these things in mind... press is in cleaning process at the moment and then a week for installing....

 

[ballykea]

Heidelberg 102 zp

Just bought 102ZP and having trouble locating total impression count on console? any ideas?
thanks

 

[Data]

If you are able to print i cant see any problems with press varnish. Nitin youre post makes no sense, although if you mean you are printing more colours than units thus running the sheet through two or three times? Then its down to the minimum amount of spray to stop set off, basic printing experience.

I'm sorry but i find it somewhat surprising that people with multi-colour presses are asking for basic help.

 

[Hters]

Just bought 102ZP and having trouble locating total impression count on console? any ideas?
thanks

CP Tronic?

Ters.