Analisa Perbedaan Nilai Porosity (Air Permeability) Offset Paper Dan Copy Pap…

ABSTRAK Porosity is defined as the amount of air (ml/min) that can be passed through from one side of the paper to the other. Paper porosity also affects the drying process and porosity needs to be maintained to make it easier to adjust printer ink and make it easier to vacuum feed on printing and copying machines. In the paper industry, there are two types of paper, that are offset paper and …