Problems with printing - General Printing Topics - uksignboards.com

General Printing Topics

Problems with printing

Posted by Neil Kelly on April 15, 2011 at 4:16 pm

Hi i was wondering if anyone has come across this problem and what the fix might be its only started to happen recently we print on a mimaki cjv30-130 and we are getting these random dark lines they seem to be on the peaks of the raised vinyl as it come through the printer normally at the beginning of the run before the take up rollers start to pull. is this a commen fault or can it be avoided.

any tips would be appreciated.

Thanks Ned 🙂

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Dermot Howard replied 13 years ago 4 Members · 5 Replies
5 Replies

David Rowland

Member
April 15, 2011 at 4:21 pm

you might be overcooking the vinyl

the uneveness is due to quick change from cold to hot and if too hot it will cause the vinyl to lift

drop the temp

dave
Neil Kelly

Member
April 15, 2011 at 4:32 pm

Thanks that make a lot of sense what temp should we be set at…
Andrew Fleming

Member
April 16, 2011 at 2:47 pm

Neil

All vinyls are different, I have the same machine and mainly run md3 and md5 and they are both different temps, try you settings down to 35 35 and 50
David Rowland

Member
April 16, 2011 at 5:57 pm

only way to find out… test test test

try knocking it back by 5 degreees first
Dermot Howard

Member
April 16, 2011 at 6:09 pm

I get the very same peoblem from time to time, it is the temp, and I find sometimes a roll that is not rolled tight

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