We recently changed paper brands on our cover stock due to customer demands for Brightness. Since we started using this new paper (International Paper Carolina 10PT C1S UL-94) We have had slower turn times and more offset and poor rub resistance. We have tried adding 2% drier both graphix and cobalt, extra teflon, and different inks from Kohl Madden and Flint Group. We are looking for 8 to 12 hour turn around time. We run alot of solids on the felt side of the covers we run and 4 to 5 colors on the gloss side. This is 2 pass work for us and a must use this new paper. We have had the vendor in and and outside sourse (ink Rep) Vendor pretty much said it is thier standard paper no changes but the ink rep tested the paperand found that it had a highe Ph than our older paper.
Should we re-evaluate our water or still look for different ink. Our regular process ink is a Kohl Madden which we might change anyway.
Any Ideas?
Should we re-evaluate our water or still look for different ink. Our regular process ink is a Kohl Madden which we might change anyway.
Any Ideas?