| 摘要 |
A variety of etching bath-based demetallizing processes for making various products involve immersing a web of metal-containing material in a bath of aqueous etchant. The metal-containing material is protected by a pattern of etch-resistant material during the demetallizating process to form functional features having a function in the product in the metal-containing material when the web has been demetallized. The metal-containing material is also protected by a pattern of etch-resistant material over areas of the metal-containing material that serve no function in the product, but rather function in one or more ways to improve the chemical milling process, such as, for example, by extending the etchant bath life, preventing excessive heat generation in the etchant bath, maintaining the etchant bath stable and controllable, increasing web rigidity, and imparting predetermined flex characteristics to the web.
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