Pre-Etch Pattern Transfer

教程：蚀刻前图样转移（感光 vs 拓印）

type:tutorial · level:intermediate · material:copper · variant:chloride · scale:decorative-object · equipment:hand-tools · stage:patternmaking

标签：蚀刻,图样转移,耐蚀漆,感光膜,对位

对铜板蚀刻，可用拓印把纹样落到金属，再描以耐蚀沥青漆；更精确的做法是贴感光膜、用图文胶片曝光显影。拓印法适合手作单件、无需设备；感光法适合精细批量。两者都要求图样与工件严格对位。

For copper etching, rub the pattern onto metal then coat with acid-resistant asphalt; more precise is photosensitive film exposed through a film positive. Rubbing suits one-off handwork with no gear; photosensitive suits fine batches. Both demand strict pattern alignment. ---