Voids-containing synthetic paper

Abstract

Voids-containing synthetic paper has similar properties of natural paper: lightness, softness, etc, due to containing a large number of fine voids made in stretching process. These are useful for handling and printing. At the same time it is excellent in water resistance, dimensional stability due to moisture adsorption, surface smoothness, etc.
Therefore, practical uses of it have been developed in recent years as base material for recording paper, etc.
However, voids-containing synthetic paper has some disadvantages: inferior in stiffness, surface strength and productivity than those of other film-base synthetic paper. Multi-layer filming process is applicable to these problems. Mor over, it is necessary to give proper surface treatments for printing, transfering, copying and so on.