Wire structures in stamp paper!

[Rein]

Several Swiss definitives series have a variety of types of paper but also of their orientations! In the Swiss context this has to do with use of the two different recess printing presses! The 1936 Goebel press [SSR I] or the 1950 WIFAg press [SSR II].

Printed on the Goebel:





Symmetrical paper wire and a vertical direction of paper!

to be continued ...

[Rein]

Several Swiss definitives series have a variety of types of paper but also of their orientations! In the Swiss context this has to do with use of the two different recess printing presses! The 1936 Goebel press [SSR I] or the 1950 WIFAG press [SSR II].

Printed on the WIFAG:





Symmetrical paper wire and a horizontal direction of paper!

to be continued ...

[Otin]

Rein:
Concerning the 20c aerial Swiss stamps, what you call crosses do not belong to paper structure bur to indented paper similar to our "papel rayado" in San Martín con punto. In other words, it is the geriffeltes papier.
José

[Rein]

Rein:
Concerning the 20c aerial Swiss stamps, what you call crosses do not belong to paper structure but to indented paper similar to our "papel rayado" in San Martín con punto. In other words, it is the geriffeltes papier.
José

José,

yes, the gum is broken!
But the cross is the watermark!



saludos, Rein

[Otin]

Rein,
I thought you were rferring to the indents in the wire side of the stanp for in Argentine stamps the gum is broken with circles which together look like hexagons while on Swiss stamps such indents have a square section.
And as a Swiss collector I know the cross watermarl can be found on both positions. Sorry for the mistake.
José

[Otin]

Rein,
What can you tell me about the "anhlich vergé papier" in Swiss current series of 1941 Historische Bilder?
José

[Rein]

Rein,
What can you tell me about the "ahnlich vergé papier" in Swiss current series of 1941 Historische Bilder?
José

José,

I do not know it myself but it vaguely reminds me of something that has to do with either the contra cylinders or the wiping off the ink... It is NOT the paper itself! And it also reminds me of the everlasting search by philatelist for Black Tulips...

saludos, Rein

[Rein]

The problem with the philatelic literature on the paper aspects of stamps is that the terms used reflect the knowledge of hand-made paper in the early 20-th century.

In a German philatelic Forum I had a vehement discussion about the use of the term "genetztes Papier"!

http://www.bdph.de/forum/showthread.php ... tes-papier

This term was used ONCE in the German literature to describe the paper used for the Tunis Parcel stamps of 1943. It turned out to be just a clearly visible linen-binding or GRANULADO as it is called here! This in contrast with another printing of the same stamp that was a bit more opaque and did not show the wire structure!



When Stamp Collectors make up up their own fantasy terms without having the faintest idea about paper making the philatelic world winds up with terms that stay with us for ever!

to be continued ...

[Rein]

Recent changes in paper wire structures had been noticed by me in the early 1970-ies in UK stamps!




Here still the "old" twill-binding in 1968!

to be continued ...

[Rein]

Recent changes in paper wire structures had been noticed by me in the early 1970-ies in UK stamps!




Here still the "old" twill-binding in 1968!

to be continued ...jpg[/img]

Here still the

[Rein]

What can you tell me about the "ahnlich vergé papier" in Swiss current series of 1941 Historische Bilder?
José

The term "vergé" or "laid paper" is - as I stated above - a term from the hand-made paper period!

http://en.wikipedia.org/wiki/Laid_paper

Laid paper is a type of paper having a ribbed texture imparted by the manufacturing process. In the 19th century its use diminished as it was largely supplanted by wove paper. Laid paper is still commonly used by artists as a support for charcoal drawings.

In pre-mechanical papermaking (from the 12th century into the 19th century), the laid pattern was produced by the wire sieve in the rectangular mold used to produce single sheets of paper. A worker would dip the mold into a vat containing diluted linen pulp, then lift it out, tilt it to spread the pulp evenly over the sieve, and, as the water drained out between the wires, shake the mold to lock the fibers together. In the process, the pattern of the wires in the sieve was imparted to the sheet of paper.[1]

Modern papermaking techniques use a dandy roll to create the laid pattern during the early stages of manufacture, in the same way as applying a paper watermark. While in the wet state, the paper stock (a dilute dispersion of the cellulose fibers in water) is drained on a wire mesh to de-water the stock. During this process, a dandy roll with a laid mesh pattern is pressed into the wet stock, displacing the cellulose fiber.[2] This pattern has to be applied at a particular stock consistency; otherwise the pattern will be lost as the fiber flows back while the stock moves past the dandy (too wet), or fiber will pick out of the stock (too dry), causing surface disruption. As the fiber is displaced, localized areas of higher and lower density are produced in a laid pattern, and the pattern is also created on the paper's surface. The pattern is therefore apparent both as one looks through the sheet and as one views its surface. Applying the laid pattern as a mechanical emboss would not create the laid pattern effect on the look-through, as this is only achieved by watermarking techniques.

The traditional laid pattern consists of a series of wide-spaced lines (chain lines) parallel to the shorter sides of the sheet—or, in machine-made paper, running in the machine direction—and more narrowly spaced lines (laid lines) which are at 90 degrees to the chain lines.

In short - in modern paper techniques - it is just a type of Watermark!

to be continued ...

[Rein]

http://es.wikipedia.org/wiki/Papel_verjurado

Papel verjurado

El papel verjurado (denominado también como papel vergueteado y papel listado) es una elaboración especial del papel de buena calidad que se caracteriza en su acabado por la aparición de unas leves marcas transversal de grosor variable en su superficie, visibles incluso al trasluz. Estas líneas son causadas por un cilindro de filigrana (red metálica) que lleva alambre durante la fabricación del papel. La denominación puede provenir del idioma catalán que pasa al francés como: papier vergé, es por esta razón por la que se denomina también papel vergé. Se trata de un papel elaborado según un método antíguo de elaboración que en el siglo XIX se substituyó por el papel vitela. En la actualidad se emplea en la elaboración de libros de edición limitada y en material de soporte gráfico para las obras de Bellas Artes.

Historia

En la era pre-industrial de la fabricación del papel, es decir en el periodo que va desde el siglo XII al XIX los papeles verjurados se producían mediante un alambre que se encontraba arrollado al cilindro que al presionar la pasta del papel producía este patrón característico de ondulación sobre la superficie del papel. Dicho patrón era de líneas paralelas en sentido transversal a la hoja de papel (vergueteado), se denominaba a la forma verjurada. En los procesos más modernos de elaboración de papel el verjurado se imita mediante la insercción de una marca de agua especial que se aplica en el proceso de prensado y elaboración de las hojas de papel. Su uso suele ser indicativo de un empleo de papel de buena calidad, que suele ser más resistente.

to be continued ....

[Rein]

What the above statements imply is that there is no such thing as laid paper! At least not in the post-hand-made paper period! For classical philatelists this is cursing in the church!

What they can see and interprete as "laid" is at the most a type of watermark! But usually it is just the visual effect on the eye of some of the horizontal threads in the wire. What is called in Argentina "rayado" is such an effect! There is nothing in the watermark it self that causes that effect!

The UK stamps



clearly "show" a horizontal laid structure if you ask an English stamp collector!

to be continued ..

[Rein]

The stamp papers for the 1970-ies UK postage stamps are all coming form the paper mills that belong to the printing house of Harrison and Sons!

The Dutch definitives series of 1969 "Queen Juliana Regina" started to get printed on Harrison & Sons phosphorescent HS1630/7% paper in 1971! Within a few years 1971-1975 the types of gum changed enormously and this can be documented by Dutch stamps!

It was the late 1972 Charity issue with photographs of the Queens grandchildren to got me on the track of classifying the Harrison & Sons papers in 1973!

I will return to this subject later! But what is utmost curious is that no UK collector has ever paid attention to a classification of the H&S base papers - all they did was classifying the phosphorescent coatings and all-over phosphors!





you may see the bluish gum with vertical white stripes/lines!

to be continued ....

[Rein]

It reminds of the Argentina "TELA" but as you can draw more than 2 sets of blue lines it is more likely an example of the multilayer paper wire!

to be continued ...