POLISHING DOCTOR FOR PAPER CALENDER

摘要

Disclosed is a polishing doctor blade (7) for resurfacing the surface of a metal calendering roll (2) while in operation, comprising a working surface containing an abrasive material harder than the surface material of the calendering roll (2). A resilient pressure roll (3, 5) presses against the metal calendering roll (2) to form a press nip(s). Guide rolls (4) are provided to continuously pass a paper web (1) through the nip(s).