Guiding dots in photogravure?????
Publicado: 03 Dic 2010 08:00
The recess printed stamps in the 19th century often had guiding dots in the corners of the design. These dots were meant to guide the rocking in of the molette with the positive image sticking out.
In photogravure the step-and-repeat machines were supposed to have been adjusted automatically before duplicating the image so the stamp images would have their proper positions everywhere in the printing cylinder eventually without any extra corrections at all... That is what we are told by the printers and all persons dealing with stamp production so far!
But what if we repeatedly meet little dots in the corners of our stamps????
to be continued ....
In photogravure the step-and-repeat machines were supposed to have been adjusted automatically before duplicating the image so the stamp images would have their proper positions everywhere in the printing cylinder eventually without any extra corrections at all... That is what we are told by the printers and all persons dealing with stamp production so far!
But what if we repeatedly meet little dots in the corners of our stamps????
to be continued ....
