DE848912C - Process for the production of a lacquer coating on film strips consisting of cellulose derivatives - Google Patents

Process for the production of a lacquer coating on film strips consisting of cellulose derivatives

Info

Publication number
DE848912C
DE848912C DEP22746D DEP0022746D DE848912C DE 848912 C DE848912 C DE 848912C DE P22746 D DEP22746 D DE P22746D DE P0022746 D DEP0022746 D DE P0022746D DE 848912 C DE848912 C DE 848912C
Authority
DE
Germany
Prior art keywords
production
cellulose derivatives
lacquer coating
film strips
strips consisting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEP22746D
Other languages
German (de)
Inventor
Horst Theilemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RETHETO FILMPFLEGEANSTALT THEI
Original Assignee
RETHETO FILMPFLEGEANSTALT THEI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RETHETO FILMPFLEGEANSTALT THEI filed Critical RETHETO FILMPFLEGEANSTALT THEI
Priority to DEP22746D priority Critical patent/DE848912C/en
Application granted granted Critical
Publication of DE848912C publication Critical patent/DE848912C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C11/00—Auxiliary processes in photography
    • G03C11/08—Varnishing, e.g. application of protective layers on finished photographic prints
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Description

Verfahren zur Herstellung eines Lacküberzuges auf aus Zellulosederivaten bestehenden Filmbändern Zusatz zum Patent 807 892 und machen sich somit nach wie vor bei der direkten Betrachtung bemerkbar. Im projizierten Bild dagegen sind sie %:erschwunden. Vor dem Auf tragen des Lacküberzuges werden die Strahlen an den Steilwänden der Risse und Kratzer total reflektiert, wodurch diese naturgemäß auf der Leinwand als schwarze Streifen erscheinen. Nach dem Aus-.gleichen der Risse durch den Lack kann keine Totalreflektion der Strahlen mehr auftreten, zum mindesten keine spürbare, so, daß im projizierten Bild diese schwarzen Streifen und Linien nicht mehr auftreten können. Damit ist aber dieser Cbelstand, auf den es entscheidend ankommt, beseitigt.Process for the production of a lacquer coating on film tapes consisting of cellulose derivatives. Addition to patent 807 892 and are therefore still noticeable when viewed directly. In the projected image, however, they are%: disappeared. Before applying the lacquer coating, the rays are totally reflected on the steep walls of the cracks and scratches, which naturally appear as black stripes on the canvas. After the cracks have been leveled out by the lacquer, total reflection of the rays can no longer occur, at least no noticeable one, so that these black stripes and lines can no longer appear in the projected image. This, however, removes this problem, which is crucial.

Gegenüber dem Verfahren nach Patent 807 892, bei dem die Kratzer und Risse wirklich beseitigt werden, zeigt dieses Verfahren den Unterschied, daß es nur die optische Auswirkung der Risse und Kratzer in der Projektion beseit i gt. Es ist daher zweckmäßig, dieses Verfahren nur dann anzuwenden, wenn eine tatsächliche Entregnung und Regenerierung nicht möglich ist, weil die Blankseite irgendwie vorbehandelt oder präpariert ist.Compared to the method according to patent 807 892, in which the scratches and cracks are actually removed, this method shows the difference that it only eliminates the optical effect of the cracks and scratches in the projection. It is therefore useful to only use this method to be used if actual de-rain and regeneration are not possible because the blank side is somehow pretreated or prepared.

Dem Lack können auch Farbstoffe zugesetzt werden, um farbige oder Schwarzfilme zu erzeugen, 7. B. Spritgrün IV, Zaponechtviolett und Zapon- Dyes can also be added to the paint in order to produce colored or black films, 7. B. Spritgrün IV, Zaponechtviolet and Zapon-

Claims (1)
DEP22746D 1948-11-26 1948-11-26 Process for the production of a lacquer coating on film strips consisting of cellulose derivatives Expired DE848912C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP22746D DE848912C (en) 1948-11-26 1948-11-26 Process for the production of a lacquer coating on film strips consisting of cellulose derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP22746D DE848912C (en) 1948-11-26 1948-11-26 Process for the production of a lacquer coating on film strips consisting of cellulose derivatives

Publications (1)

Publication Number Publication Date
DE848912C true DE848912C (en) 1952-09-08

Family

ID=7368870

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP22746D Expired DE848912C (en) 1948-11-26 1948-11-26 Process for the production of a lacquer coating on film strips consisting of cellulose derivatives

Country Status (1)

Country Link
DE (1) DE848912C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245729B (en) * 1959-05-19 1967-07-27 Gevaert Photo Prod Nv Process for the optical brightening of coated paper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245729B (en) * 1959-05-19 1967-07-27 Gevaert Photo Prod Nv Process for the optical brightening of coated paper
DE1245729C2 (en) * 1959-05-19 1974-06-20 Gevaert Photo Prod Nv Process for the optical brightening of coated paper

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