tacky printing paper sticks like brick

[turbotom1052]

i would suggest in addition to all that was mentioned that you try not to exceed the total ink density that the paper manufacturer suggests. when printing 4/c process that toal ink density can be adjusted in your pre press dept. are you printing 4/c process in 2 passes on your press? you can usually get away with over 200% total ink density but id still be careful when approaching the total ink density recomended if you will be overprinting a heavy ink film on subsequent passes.