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1. (WO1998048996) METHOD FOR MAKING A CALENDER ROLL AND THERMOPLASTIC SHEETS OR FILMS OBTAINED BY CALENDERING WITH SUCH A ROLL

Pub. No.:    WO/1998/048996    International Application No.:    PCT/FR1998/000781
Publication Date: Fri Nov 06 00:59:59 CET 1998 International Filing Date: Sat Apr 18 01:59:59 CEST 1998
IPC: B29C 59/04
C25F 3/00
F16C 13/00
Applicants: GUIAL
BEZIER, Bernard
Inventors: BEZIER, Bernard
Title: METHOD FOR MAKING A CALENDER ROLL AND THERMOPLASTIC SHEETS OR FILMS OBTAINED BY CALENDERING WITH SUCH A ROLL
Abstract:
The invention concerns a method for making a calender roll whereby after etching the roll (4). superficial metal layer, in particular made of copper, the roll etched metal surface is gated by being subjected to an anode oxidation. Preferably, the roll (4) superficial layer is produced by electroplating, the anode oxidation being carried out in an electrolytic solution (6) derived from the electroplating step. The calender roll is used to obtain, by calendering a thermoplastic resin, a sheet or film comprising at least one matt surface which is more particularly used for making disposable absorbent hygienic articles.