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Tonal intaglio printing  
 

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Pillar Of The Community
Canada
4131 Posts
Posted 04/11/2015   4:56 pm  Show Profile Bookmark this reply Add lithograving to your friends list  Get a Link to this Reply
This is what Scott Catalog has on a couple of the issues we've
been discussing here.



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Valued Member
United Kingdom
244 Posts
Posted 09/19/2015   07:57 am  Show Profile Bookmark this reply Add 65170 to your friends list  Get a Link to this Reply
I have been looking back at this thread and note that Lithograving asks what 'Dry Offset' is. As this question appears not to have been answered, I will!

Harrison printed a series of Postal Orders by means of the dry offset printing process in 1987 and John Walker, the Director of Design and Origination at the company during that period, states: "This process was chosen due to the unique nature of the inks used. The inks were fugitive, i.e. chemical and water soluble (hence dry offset which does not use water) to avoid any possibility of fraudsters removing or altering any hand written data." Chris Matthews, the engraver, added: "Dry offset is a bit like a ‘John Bull' printing kit, i.e. not able to show subtle detail, so has to be more crudely drawn; this is why I prefer intaglio!"

Hope this helps. GLENN
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Pillar Of The Community
Canada
4131 Posts
Posted 09/21/2015   1:04 pm  Show Profile Bookmark this reply Add lithograving to your friends list  Get a Link to this Reply
Thanks for the info Glenn.

I also found out a bit about dry offset.

From the Encyclopaedia Britannica


Quote:
Dry offset, also called Letterset, or Indirect Relief Printing, offset printing process combining the characteristics of letterpress and offset.
A special plate prints directly onto the blanket of an offset press, and the blanket then offsets the image onto the paper.
The process is called dry offset because the plate is not dampened as it would be in the offset lithography process.

The process was developed by the U.S. Bureau of Engraving and Printing to produce long runs of tax stamps and savings bonds.


Which jives basically with Michel's introduction
regarding printing methods.
The German castles definitives where originally printed letterpress (typography) but some values were
printed/reprinted in the late 1980s via letterset.




Here is a link for pics of a Heidelberg Rotary Letterset or Dry Offset Press, Model KRZ - Germany

http://www.howardironworks.org/coll...rz-1964.html
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Pillar Of The Community
Netherlands
577 Posts
Posted 09/25/2017   07:05 am  Show Profile Bookmark this reply Add Galeoptix to your friends list  Get a Link to this Reply



Kyokushiki or screenless photogravure in japanese:









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