1) At the start of your post, you showed a picture of your so-called "Splody Dots" on paper. NOW show an image of the same area on the plate.
2) When you re-test pH, write a capital letter and a line, reasonable size.
I strongly suggest you re-test and try to show an image, not a "Splody Dot".
Have seen your Paper Salesman about this problem? OJI Paper are a top-class manufacturer of Paper in Japan.
Your reading is in the Alkaline pH area. Your next task is - show a picture of the...
Welcome back - curiosity,
Are you using TopKote manufactured by OJI Paper of Japan?
if so what GSM?
What makes you think that this paper is causing you problems?
Using the Hydrion Colour Chart Display - I read pH 6 which is Neutral.
My choice is products from Varn.
Back to the Topic.
Most all Coated Papers use PCC (Precipitated Calcium Carbonate) Coatings, so it remains
a Pressroom problem to minimise the impact this coating plays during the process putting
Ink onto Paper. The main control is F.S...
Washing Roller Train Technique - Use a high quality "Miscible Roller/Blanket Wash" -- important! for the final
rinse - USE just "Hand Warm Water" !!!!!
Let use see a pic. of the same area on the Plate, this is the second time I've asked you!
also, show pics of any...
I can remember during my apprenticeship! - The Compositor Apprentices being sent to look for " Along Stand"
the Pressroom Apprentices sent for a "Tin of Tartan Ink" and many others I can't remember, I must be getting old !!!
I'm posting 2 PDFs that I hope will help you. In my opinion many of the posts regarding problems you encounter, in the end, ALL relate to On Press Problems that the Press crew don't understand or unable to rectify, so passing the problem back to Pre-press.
1) I would also...
A constant refrain from Digital Printers is 1) Problems with Wavy Paper.
You all have a poor understanding of Paper Problems and Papermaking, I'm posting
a PDF which I hope you will find of interest and value.
Alith and fellow Lithographers,
Clarification: As describe by Alibyan, the ultimate tool is "Blanket Height Gauge" but the Mechanics of Cylinder Pressure Settings
on modern Offset Presses provide via the Blanket Cylinder eccentric bearing to and away from the Impression Cyl...