FIGURE 24-46 (A) This paper has only sparse fibers and no fillers at all: It would be unacceptable as paper for writing or printing. But this is paper for a tea bag, so high porosity and permeability are advantageous. (B) This notebook paper has many more fibers per square centimeter than the paper of tea bags, but they are difficult to see because so much filler, whitener, and dye have been added.