Digital printing by Label Art for the 4 colours of the picture!
Flexography for the phosphorescence.
Unlike in traditional printing there is NO impact - no touchable plate or cylinder from which either directly or indirectly ink get transferred to stamp paper!
It is all virtual, digital - bit and bytes - in the computer just as it is in our laser printers or inkjets!
And as all have experienced at times, the printer spits a load of rubbish on our papers as well.
The thermal printers in the dispensing machines may just as well deform their output or produce any administrative rubbish.... At times keen collectors found ways of having these machines do what they like
The paper of the SOAR's is coated and the coating has optical brightening agents. I.e. under the UV-lamp the paper reacts white/bluish.
As said before there are THREE different types of paper surfaces found so far.
A "varnished" one, one with a tree-like pattern and one with a set of thin vertical lines. This all can be seen when observing the surface under an small angle! A 4th type can be considered the one with nothing in the surface to be seen.
Alas, I am not yet able to get these differences made visible.
The "perforation" is a kiss-die cut we know from our self-adhesive coil or booklet stamps. They are even quite like the ones for these stamps! Several versions of the SOAR kiss-die cuts do resemble those of the Birds of Wild Flowers self-adhesives !
At least TWO different types of kiss-die cuts are known for the SOAR's. I will deal with this later on.
The Waterways SOAR's only have ONE type of kiss-die cut.
The Waterways produced by the Philatelic Bureau with 3 phosphorescent bars. Same date, same code!
3 phosphorescent bars for stamps on the first day! Philatelic Bureau code as well.
Printed on "varnished" paper.
https://www.labelsandlabeling.com/news/latest/woelco-label-a ... -ccl-label
22 Jan 2016 Woelco, Label Art and Label Art Digital added to CCL Label
In addition, CCL has acquired Label Art and Label Art Digital, privately owned companies with common shareholders, based in Dublin, Ireland. Label Art is a pressure-sensitive label producer with a focus on healthcare and specialty customers in Ireland and the UK. Label Art Digital is described as Ireland's first and largest digital label manufacturer. The first digital press was installed in 2005 and a second press was installed in 2010 to meet demand for digital print.