0
Back in the days people needed something to produce several copies of a document quickly. This can be done using a contact print process on light-sensitive sheets, often negatives.
In 1861 Alphonse Louis Poitevin found that ferro-gallate in gum is light sensitive. A coating of this chemical on a paper or linen was used to reproduce an image from a translucent document. Light however turned the document permanent blue and the process was unable to reproduce color or shades of grey.
The "Blue Prints" was therefore at that time blue sheets with light lines.
Still curious? Ask our experts.
Chat with our AI personalities
Rafa
Ross
EzraAdd your answer:
Earn +20 pts
How can you tell the difference between a lithograph and print?
A lithograph is a print too, produced from the lithography process and a metal plate. It is the only process to produce prints, so there are no non-lithograph prints to compare lithographs with. Some prints were made from engraved templates centuries ago, and this method is still used for stamps, but nor for prints anymore.
A document in portrait prints are what?
A document in portrait print:
How did lithography revolutionize printmaking?
Prints became quick and cheap
Her name was Lola and she was a showgirl not at the Copacabana but at what sleazy Berlin nightclub?
The Blue Angel
Who is colin paynton?
colin paynton is an english artist, best known for his woodblock prints of wildlife, birds, and landscapes. he is now known as colin see-paynton as he changed/ altered his name when he got married.
