染蓝幻灯片制作方法与工艺很多,各有千秋。怎样制作出一张高质量的染蓝幻灯片,基本上都围绕着解决一个中心问题——怎样使白字上不挂蓝。这也是一个比较难解决的问题。许多同志总结了不少办法,归纳起来就是:底稿纸要白,而且越白越好;字 Dyed blue slide production methods and processes are many, each has its advantages and disadvantages. How to make a high-quality blue dye-slides, basically around a solution to a central issue - how to make the white on the blue. This is also a more difficult problem to solve. Many comrades summed up many ways, summed up as follows: the manuscript paper to be white, and the more white the better; word