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process for the catalytic treatment of a substrate in the plating strömfri
process for the catalytic treatment of a substrate in the plating strömfri
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机译:镀层str u00f6mfri中对基材进行催化处理的方法
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摘要
There is disclosed a novel process for catalyzation for trapping of a catalyst metal involved with the adhesion of an electroless plating to a substrate. The process is carried out by employing neither the sensitizing-activating method nor the catalyst-accelerator method. Specifically, in forming an electroless plating on the surface of a non-conductive substance as a substrate, the surface of the non-conductive substance is coated with a treatment liquid containing at least chitosan or a chitosan derivative before the steps of catalyzation and electroless plating to form a hydrophilic coating film on the surface of the non-conductive substance.
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