PROCESS FOR THE PREPARATION BY PAPER TECHNIQUES OF A SHEET MATERIAL WITH IMPROVED MACHINE RETENTION, SHEET MATERIAL OBTAINED AND ITS APPLICATION IN PARTICULAR IN THE FIELD OF PRINTING WRITING, PACKAGING AND COATINGS

摘要

PROCESS FOR THE PREPARATION BY PAPER TECHNIQUES OF A SHEET MATERIAL WITH IMPROVED MACHINE RETENTION, SHEET MATERIAL THUS OBTAINED AND ITS APPLICATION IN PARTICULAR IN THE FIELD OF WRITING PRINTING, PACKAGING AND COATINGS. P THE INVENTION RELATES TO A PROCESS FOR THE PREPARATION BY PAPER TECHNIQUES OF A SHEET MATERIAL. /P P THIS MATERIAL INCLUDES FIBERS, AN ORGANIC BINDER, A NON-BINDING MINERAL FILLER AND A FLOCCULATING AS WELL AS VARIOUS CLASSIC ADJUVANTS, THIS PROCESS IS CHARACTERIZED BY THE FACT THAT THE MINERAL LOAD AND THE BINDER ARE PREVIOUSLY FLOCCULATED BEFORE BEING INCORPORATED IN THE FIBROUS SUSPENSION. /P P THE MATERIAL PREPARED FOR RETAIN IMPROVED MINERAL FILLERS AND PHYSICAL CHARACTERISTICS AND CAN BE USED AS PRINT-WRITE MEDIUM, COATING MEDIUM, PACKAGING MEDIUM OR FOR OBTAINING COMPLEXES FOR INDUSTRIAL OR FOOD USE.