发明公开
- 专利标题: COLOR CONTROL OF TRIVALENT CHROMIUM DEPOSITS
- 专利标题(中): COLOR CONTROL三价铬矿
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申请号: EP13749579申请日: 2013-02-05
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公开(公告)号: EP2815002A4公开(公告)日: 2015-10-14
- 发明人: HINGLEY STACEY , TOOTH RICHARD , CLARKE TERENCE
- 申请人: MACDERMID ACUMEN INC
- 专利权人: MACDERMID ACUMEN INC
- 当前专利权人: MACDERMID ACUMEN INC
- 优先权: US201213398111 2012-02-16
- 主分类号: C25D3/06
- IPC分类号: C25D3/06 ; C25D21/12
摘要:
A method of adjusting and controlling the color of trivalent chromium deposits is provided. The method includes the steps of: (a) measuring the color of a trivalent chromium deposit standard; (b) adding one or more color enhancing additives to a trivalent chromium electrolyte; (c) contacting the substrate with the trivalent chromium electrolyte containing the one or more color enhancing additives to deposit trivalent chromium on the substrate; (d) measuring the color of the color-enhanced trivalent chromium deposit; (e) comparing the color of the color-enhanced chromium deposit to that of the standard; and (f) if necessary, adjusting the amount of the one or more color enhancing additives added to the trivalent chromium electrolyte if the color of the color-enhanced chromium deposit is outside of a desired optical variation from that of the standard color-enhanced chromium deposit. The color of the trivalent chromium deposit may be measured using a spectrophotometer.
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