D - Textiles – Paper – 06 – M
Patent
D - Textiles, Paper
06
M
D06M 11/83 (2006.01) C23C 18/16 (2006.01) C23C 18/20 (2006.01) C23C 18/28 (2006.01) C23C 18/32 (2006.01)
Patent
CA 2255646
Monofilaments of a yarn to be coated with electroless nickel are pretreated with an acid and a surfactant to render the monofilament surfaces water wettable and not substantially mechanically degraded. The pretreated yarns is passed through an electroless nickel coating bath under little or no tension so that the electroless nickel can coat all of the monofilament surfaces substantially uniformly. The nickel coated yam then can be coated with electrolytic metal such as copper in an electrolytic metal plating step, as desired.
On effectue le prétraitement de monofilaments d'un fil devant être recouvert de nickel chimique avec un acide et un tensioactif afin que les surfaces des monofilaments soient mouillables par l'eau et ne subissent pas une importante dégradation mécanique. On fait passer le fil prétraité dans un bain de revêtement de nickel chimique sous une faible tension ou sans tension de sorte que le nickel chimique puisse recouvrir pratiquement uniformément toutes les surfaces des monofilaments. Le fil recouvert de nickel peut être ensuite revêtu de métal électrolytique tel que le cuivre au cours d'une étape de galvanoplastie, suivant les cas.
Burke Thomas F.
Cawston John D.
Hoover Merwin F.
Stearns Thomas H.
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
Micro-Coax Inc.
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