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    • 10. 发明授权
    • Chemical treatment of treading surfaces
    • 踩踏表面的化学处理
    • US5842815A
    • 1998-12-01
    • US752564
    • 1996-11-21
    • Philip Anthony Curtis
    • Philip Anthony Curtis
    • B08B3/08C09K13/00
    • B08B3/08C09K13/00
    • A chemical solution for neutralizing treading surfaces includes a neutralizing agent such as an alkaline silicate neutralizing solution, a suitable dyestuff (non-indicator dye) and a masking agent (indicator dye) for masking the true color of the dyestuff. The masking agent becomes colorless at a pH of 7.0 or greater. The chemical solution is applied to a suitable treading surface, such as a ceramic tile floor, a suitable time after an acid treatment solution of hydrofluoric acid and nitric acid has been applied to the treading surface. Use of the indicator dye in combination with the non-indicator dye in the chemical solution yields a strongly visible color change which distinguishes the areas that have been sufficiently supplied with neutralizing solution from those that have not been sufficiently supplied with the neutralizing solution.
    • 用于中和踩踏表面的化学溶液包括中和剂,例如碱性硅酸盐中和溶液,合适的染料(非指示剂染料)和掩蔽剂(指示剂染料),用于掩蔽染料的真实颜色。 掩蔽剂在pH7.0以上变为无色。 将化学溶液施加到合适的踩踏表面,例如瓷砖地板,在氢氟酸和硝酸的酸处理溶液已经施加到踩踏表面之后的合适时间。 在化学溶液中使用指示剂染料与非指示剂染料组合产生强烈可见的颜色变化,其区分已经充分供应中和溶液的区域与尚未充分供应中和溶液的区域。