pacificiam
Well-known member
Dear All,
Its serious issue we are facing on uncoated paper, that ink is gets accumulated on impression cylinder while printing other side.
We did lot of R&D on ink. We tried different ink on uncoated substrate. But result is not satisfactory.
Ink accumulated on impression cylinder after every 3k-4k sheets. It create problem likes hickey/ picking/pilling on previously printed area. It also results in production loss.
Following action we took to avoid or minimize it.
Please suggest any other method to avoid this or any chemical to apply on cylinder to minimize this problem.
Also suggest property of ink that need to be check.
PS : Paper pH is 5.5
Its serious issue we are facing on uncoated paper, that ink is gets accumulated on impression cylinder while printing other side.
We did lot of R&D on ink. We tried different ink on uncoated substrate. But result is not satisfactory.
Ink accumulated on impression cylinder after every 3k-4k sheets. It create problem likes hickey/ picking/pilling on previously printed area. It also results in production loss.
Following action we took to avoid or minimize it.
- Changed the ink
- Used rough side 1st for printing.
- Used smooth side 1st for printing.
- Kept sheets for more that 48hrs for drying.
- Print on another side as soon as completion for 1st side. Time is less than 2hrs.
Please suggest any other method to avoid this or any chemical to apply on cylinder to minimize this problem.
Also suggest property of ink that need to be check.
PS : Paper pH is 5.5