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1. 发明公开

EP4011625A1 A METHOD FOR PRINTING A RIBBON 有权
公开(公告)号：EP4011625A1
公开(公告)日：2022-06-15
申请号：EP21212399.6
申请日：2021-12-03
申请人： Menphis S.p.A.
发明人： MENIN, GILBERTO
IPC分类号： B41F16/02 , D06B11/00 , B41M5/035
摘要： A method for printing a ribbon, comprising the steps of:
- feeding a ribbon (1) along a feeding path (X),
- impregnating said ribbon (1) with a predetermined amount of acidic or alkaline solution thereby obtaining an impregnated ribbon (2),
- feeding a first tape (4) and a second tape (5) consisting of a plastic material on which at least one dye layer (6, 6') comprising pigments of acidic and/or reactive pigments, or pigments of basic colors, is applied,
- coupling the impregnated ribbon (2) to the first and second tapes (4, 5) consisting of a plastic material, defining a multi-layer belt (7),
- making two continuous and parallel weld seams (A) at respective side edges (7') of the multi-layer belt (7),
- advancing the multi-layer belt (7) along a vaporization path (V) where the multi-layer belt (7) is heated on both sides, so as to vaporize at least partially the predetermined amount of acidic or alkaline solution for activating the reaction of the dyes with the impregnated acidic or alkaline solution and obtaining a migration of the dyes from the dye layer (6, 6') towards the ribbon (1) forming a printed ribbon (8),
- making two continuous cutting lines (B), parallel to the two continuous weld seams (A), so as to trim the side edges (7') of the multi-layer belt (7),
- decoupling the multi-layer belt (7).

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