PROCEDURE FOR THE PRODUCTION OF CONTINUOUS PAPER BANDS PRESENTING CF OR CB LAYERS FOR PRESSURE SENSITIVE RECORD PAPERS.

摘要

A PROCESS FOR THE ELABORATION OF PAPER BANDS IS DESCRIBED CONTAINING A CF LAYER FOR PRESSURE SENSITIVE RECORD PAPER. TO ENSURE A COMPLETE DIMENSIONING, THE PAPER BAND (1) IS SUBMITTED TO THE DIMENSIONING OR CLASSIFICATION BETWEEN MASSES AND THE COLOR INK (4) CONTAINING COLOR ACCEPTORS, REAGENT WITH A COLORED DISPOSITION, ARE REITIVE WITH A COLORED DISPOSITION. THE PAPER BELT (1) IS GUIDED BETWEEN TWO TRANSFER ROLLERS (2.2 '') SEPARATED BY A SPACE OR ADJUSTED TO THE MINIMUM PRESSURE. ONE OF THE TRANSFER ROLLERS IS APPLIED VOLUMETRICALLY IN THE COATING INK (4) PREVIOUSLY DOSED BY MEANS OF A SURFACE-DRIVEN OR ROTATING PROFILE SCRAPER, FORMING THE LAYER (4 '') CF ON ONE SIDE OF THE PAPER BAND (1). THE OTHER TRANSFER ROLLER APPLIES AT THE SAME TIME A SOLUTION (5) PREVIOUSLY DOSE VOLUMETRICALLY ON THE OTHER SIDE OF THE PAPER BAND, ALSO BY MEANS OF A SURFACE-DRIVEN AND ROTATED PROFILED SCRAPER. THE AMOUNT OF THE REACTIVE COLOR PIGMENT IN THE DRY CF COAT IS INCLUDED BETWEEN 3.5 AND 5 G / M2.