Modifiche

Nowadays almost all pens are made in some kind of plastic resin, more or less shiny or resistant depending on the implementation. The evolution of technology also allows the creation of colorful plastics, whose brilliance and variety of colors has little to envy to [[celluloid]]. However, all of these are fully automated industrial productions, with a very low production cost, regardless of how someone can call them "precious". The celluloid long production times and the impossibility of its processing by injection mold, made it a much more espensive material, and this is also why there was a return to it in recent years, as a distinctive feature of some luxury pens.

Nowadays almost all pens are made in some kind of plastic resin, more or less shiny or resistant depending on the implementation. The evolution of technology also allows the creation of colorful plastics, whose brilliance and variety of colors has little to envy to [[celluloid]]. However, all of these are fully automated industrial productions, with a very low production cost, regardless of how someone can call them "precious". The celluloid long production times and the impossibility of its processing by injection mold, made it a much more espensive material, and this is also why there was a return to it in recent years, as a distinctive feature of some luxury pens.

<noinclude>

<noinclude>

==Notes==

==Notes==