Whoe, I've been out of touch...
I retired in 2002 but ammonia was the cheapest and fastest. IF you had decent ventilation. I had a 'fluid' type machine that I was glad to have because we started out with an ammonia machine with a kitchen hood over it. I think I really got some lung damage from breathing that anhydrous ammonia and changing the jug that it bubbled through was really murder.
Anyway, the 'Xerox', black lines, large format printers are all great, but they are more expensive per copy, no matter how many copies or quantity you have.
And I've been trying to find out, if plain, old fashioned offset printing is as economical as it used to be if you don't get all the 'Cruise brochure' quality and just print a couple of colors on plain stock. I think the silk screen idea is pretty cool.
Guys; Ammonia based blueprinting is still very much in existence. Most every remote design/build construction job in the world is using it out on the jobsite. Why, because their need is volatile and limited to small number of sheets at any time. And, those blueprinting operations are outside the purview of EPA and everyone else. But, I'm sure it is on the decline.
I have another idea about a source that I need to research a bit. I'll get back to you.
I retired in 2002 but ammonia was the cheapest and fastest. IF you had decent ventilation. I had a 'fluid' type machine that I was glad to have because we started out with an ammonia machine with a kitchen hood over it. I think I really got some lung damage from breathing that anhydrous ammonia and changing the jug that it bubbled through was really murder.
Anyway, the 'Xerox', black lines, large format printers are all great, but they are more expensive per copy, no matter how many copies or quantity you have.
And I've been trying to find out, if plain, old fashioned offset printing is as economical as it used to be if you don't get all the 'Cruise brochure' quality and just print a couple of colors on plain stock. I think the silk screen idea is pretty cool.