Differenze tra le versioni di "Translations:Galalite/5/en"

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Versione attuale delle 23:59, 14 ott 2020

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Definizione del messaggio (Galalite)
La galalite non ebbe però un grande successo e venne rapidamente abbandonata con l'avvento della [[celluloide]]. La sua porosità infatti la rende fortemente igroscopica, con la tendenza ad espandersi con l'umidità, il che comporta problemi di stabilità meccanica. Ancora peggiore, sempre per questa caratteristica, la sua resistenza all'inchiostro, che tende a produrre macchie permanenti. Inoltre l'immersione in acqua (anche solo per poche ore) comporta una espansione (fino al 10%) ed un ammorbidimento del materiale, con conseguenze distruttive in quanto ad una successiva asciugatura questo perderà la forma originale. Infine con il tempo il materiale tende a presentare delle screpolature (in genere si presentano per lunghe esposizioni alla luce e si ritiene siano causate dalle variazioni di umidità subite) che sono solo apparentemente superficiali e non possono essere rimosse.
TraduzioneHowever, galalith was not very successful and was quickly abandoned with the advent of [[celluloid]]. Its porosity in fact makes it strongly hygroscopic, with the tendency to expand with humidity, which leads to problems of mechanical stability. Even worse, again for this characteristic, its resistance to ink, which tends to produce permanent stains. In addition, immersion in water (even for just a few hours) involves an expansion (up to 10%) and a softening of the material, with destructive consequences as a subsequent drying it will lose its original shape. Finally, with time the material tends to present cracks (usually they occur for long exposure to light and are believed to be caused by changes in moisture) that are only apparently superficial and can not be removed.

However, galalith was not very successful and was quickly abandoned with the advent of celluloid. Its porosity in fact makes it strongly hygroscopic, with the tendency to expand with humidity, which leads to problems of mechanical stability. Even worse, again for this characteristic, its resistance to ink, which tends to produce permanent stains. In addition, immersion in water (even for just a few hours) involves an expansion (up to 10%) and a softening of the material, with destructive consequences as a subsequent drying it will lose its original shape. Finally, with time the material tends to present cracks (usually they occur for long exposure to light and are believed to be caused by changes in moisture) that are only apparently superficial and can not be removed.

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