B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/108, 117/112
B05D 3/02 (2006.01) B05C 9/14 (2006.01) B05D 7/20 (2006.01)
Patent
CA 1258996
METHOD AND APPARATUS FOR COLOURING POLYMER-INSULATED WIRE Abstract of the Disclosure In a method and apparatus for colouring polymer-insulated wire, the wire is guided through a solvent reservoir to dissolve surface contaminants and etch the surface of the insulation, and passed between opposed wiping surfaces to wipe surface contaminants from the wire. The wire is then passed through a hot air duct to evaporate solvent remaining on its surface. The dried wire is guided through a solvent-based colourant reservoir to coat it with colourant and passed against a wiping surface to wipe excess colourant from its surface. The coated wire is passed through a hot air duct to evaporate some of the solvent in the colourant, and through a cold air duct to form a surface skin on the colourant before it passes over a guide wheel. The surface skin prevents adherence of the colourant to the guide wheel. The coated wire is passed by a spraying device which intermittently sprays solvent-based colourant on the wire to band encode it. The band-encoded wire is passed through a hot air duct to evaporate some of the solvent in the bands of colourant, and through a cold air duct to form a surface skin on the bands of colourant before they pass over a guide wheel. The surface skin prevents adherence of the bands of colourant to the guide wheel. The method and apparatus are useful for reclaiming polymer-insulated wire with off-standard or undesired colouration. - i -
527615
Baxter Gordon D.
Garner John N.
Grant James C.
Junkin Charles William
Superior Essex Communications Llc
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