- Jul 8, 2007I received a set of Atkin plans from Pat. The plans were very high
quality and easy to read. Black lines on white paper. Other plans I
have received from other sources have been blue line( blue prints).
These blue line plans are very light and hard to read. My understanding
is that they are developed on the paper by an ammonia process. The
paper yellows over time.
What process is used by Atkin plans to reproduce drawings where the
lines are black and of such high quality?
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