High ash content absorbent paper for the decorative laminating industry and a process for preparing the same

Claim 1

A HIGH ASH CONTENT ABAORBENT PAPER FOR THE DECORATIVE LAMINATING INDUSTRY WHICH IS LIGHTFAST CONSISTING OF AN INTERFELTED FIBROUS WEB CONTAINING FROM ABOUT 30% TO ABOUT 70% OF CELLULOSIC FIBERS, FROM ABOUT 70% TO ABOUT 30% RESPECTIVELY OF FILLER PARTICLES, FROM ABOUT 0.1% TO ABOUT 1% BASED ON THE FILLER AND FIBER CONTENT OF THE PAPER OF A MUCILAGINOUS SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF GUAR GUM, METHYLATED GUAR GUM, SODIUM ALGINATE, AND MANNOGALACTAN, AND FROM ABOUT 0.3% TO ABOUT 1.5% BASED ON THE FIBER AND FILLER CONTENT OF THE PAPER OF A RESIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENEIMINE, MELAMINE FORMALDEHYDE,AND UREA MELAMINE RESINS, SAID FILLER PARTICLES CONTAINING FROM ABOUT 20% TO ABOUT 40% OF SILICEOUS FILLER PARTICLES HAVING A SIZE OF FROM ABOUT 2 MICRONS TO ABOUT 8 MICRONS DIAMETER AND A REFRACTORY INDEX BELOW 2.3 AND FROM ABOUT 10% TO ABOUT 25% OF OPACIFYING FILLER PARTICLES HAVING A SIZE OF LESS THAN 1 MICRON DIAMETER, A REFRACTORY INDEX ABOVE 2.3 AND A COATING THEREON OF ALUMINUM HYDROXIDE TO IMPART LIGHTFASTNESS THERETO.