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Seams without superposition

 

Welding without superposition is the most accurate system for joining vinyl film bands to manufacture:- Frontal projection screens- Rear-projection screens- Rear-illuminated cycloramas- Light diffusers- Scenic and decorative backdrops
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Seams without superposition are almost invisible at an observation distance of a few metres.Avoiding the overlapping of the layers with the film for frontal projections is qualitatively very important to obtain planar and uniform projection surfaces ...
... but it becomes indispensable with film for rear projections, the backlighting makes the duplication of film layers visually unacceptable.Welding without superposition is carried out with the same method for all films for frontal and rear projections ...

... but its visibility varies depending on the type of projection, frontal in this case in which the films RNV - Nevada, RAR - Arizona and RNO - Notturno are compared ...
Welding without superposition is the most accurate system for joining vinyl film bands to manufacture:- Frontal projection screens- Rear-projection screens- Rear-illuminated cycloramas- Light diffusers- Scenic and decorative backdrops
... or rear projection, the materials are the same as the previous photograph.The visibility of the seam also depends on the pigmentation of the film, its thickness, its embossing and the brightness of the projection.
It is used for the manufacturing of
Frontal projection screens
Rear-projection screens
Rear-illuminated backdrops
Ghiaccio transparent backdrops
Decorative vinyl backdrops
Characteristics
the cold welding without overlaps allows to get some junctions that are nearly invisible at a distance of observation of few meters
custom realization of backdrops with virtually unlimited size
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