Properties of Hollow Sphere Pigment (HSP) and Its Application for Gravure Paper

Abstract

The application of HSP to gravure paper was investigated, following to bi-toko region reported last year. It is well known that gravure paper needs the paper surface smoothness and the compressibility to keep away from missing dots, for example, as to binders, gravure coated paper had been given the compressibility by means of using latex with low glass transition temperature and of avoiding to contain starch.
In this report, through optimizing HSP's ability giving drastic paper surface smoothness, it was examined that the performance of some formulation including HSP to which latex with high glass transition point relatively and/or starch were introduced.
As a result, the papers coating their formulation showed less missing dots, remarkable development of stiffness and blocking resistance compared with the traditional formula. And furthermore, by finishing at higher temperature and lower pressure, the coated paper with HSP weren't given only smoothness but high compressibility against without HSP, resulting in better gravure printability.