AT44532B - Process for the production of grids on thin membranes. - Google Patents
Process for the production of grids on thin membranes.Info
- Publication number
- AT44532B AT44532B AT44532DA AT44532B AT 44532 B AT44532 B AT 44532B AT 44532D A AT44532D A AT 44532DA AT 44532 B AT44532 B AT 44532B
- Authority
- AT
- Austria
- Prior art keywords
- grids
- production
- thin membranes
- collodion
- desc
- Prior art date
Links
Landscapes
- Printing Methods (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von Rastern auf dünnen Häutchen.
Die vorliegende Erfindung bezieht sich auf ein Verfahren zur'Herstellung von Rastern durch Druck auf dünnen Häutchen. Es ist bereits bekannt, Kornraster auf Gelatinehä. utchen zu drucken, indessen ist das Verfahren nur im Wege des Tiefdrucks ausgeführt worden, bei welchem die Herstellung gleichmässig hoher Punkte bezw. Linien nicht möglich ist und bei weichem auch das Abheben von der geätzten Platte mit besonderer Sorgfalt geschehen muss. Auch Golatinohautchen sind für die Verwendung solcher Raster als photographische Raster nicht geeignet, indem die Gelatine nicht genügend rein in der Durchsicht und zu lichtschwach ist. Nach vorliegender Erfindung wird an Stelle von Gelatine Kollodium in Vorschlag gebracht.
Kollodiumhäute zeigen aber, wenn sie aus einer zu starken Lösung hergestellt worden, eine Struktur. Diese Struktur, die fUr das blosse Auge wenig sichtbar ist, macht sich jedoch bei der Verwendung von reinen Kollodiumhäuten als Raster sehr störend bemerkbar, Eine 2%ige Lösung von Kollodium ergibt nach Übergiessen einer Platte
EMI1.1
auf dieses Häutchcn ohne weiteres Linien mittels Buchdruck aufgetragen werden können.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of grids on thin membranes.
The present invention relates to a method for producing screens by printing on thin membranes. It is already known to use grain raster on gelatine skin. utchen to print, however, the process has only been carried out by way of gravure printing, in which the production of uniformly high dots respectively. Lines is not possible and with soft the lifting from the etched plate must be done with special care. Golatino skins are also unsuitable for the use of such grids as photographic grids, since the gelatine is not sufficiently pure when viewed through and too faint. According to the present invention, collodion is proposed instead of gelatin.
However, collodion skins show a structure if they are made from a solution that is too strong. This structure, which is hardly visible to the naked eye, is, however, very disturbing when using pure collodion skins as a grid. A 2% solution of collodion results after pouring over a plate
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lines can easily be applied to this skin by means of letterpress printing.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT44532T | 1909-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT44532B true AT44532B (en) | 1910-10-25 |
Family
ID=3564200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT44532D AT44532B (en) | 1909-04-10 | 1909-04-10 | Process for the production of grids on thin membranes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT44532B (en) |
-
1909
- 1909-04-10 AT AT44532D patent/AT44532B/en active
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