AltecGreen
May 16th, 2013, 02:48 PM
On FPB in a Brandon thread, a discussion broke out on how vintage celluloid patterns might have been made.
I dug up these two movies that show how celluloid acetate is made. The process for celluloid nitrate is similar.
Cellulose nitrate and cellulose acetate are made as a paste/dough rather than as a liquid. By coloring slabs of the paste and rolling/cutting and then stacking, various patterns can be made.
The following two videos are from Mazzucchelli. They were one of the last makers of celluoid nitrate in Italy and still make celluloid acetate for many applications.
The first video (http://www.mazzucchelli1849.it/eng/video.php)is Mazzucchelli's own video that show their process. This video is a bit flaky and it might not load the first time. If the video shows just white, try again.
This is another video that shows the making of a camo pattern celluloid acetate.
http://youtu.be/-dieDZJbBhs
I dug up these two movies that show how celluloid acetate is made. The process for celluloid nitrate is similar.
Cellulose nitrate and cellulose acetate are made as a paste/dough rather than as a liquid. By coloring slabs of the paste and rolling/cutting and then stacking, various patterns can be made.
The following two videos are from Mazzucchelli. They were one of the last makers of celluoid nitrate in Italy and still make celluloid acetate for many applications.
The first video (http://www.mazzucchelli1849.it/eng/video.php)is Mazzucchelli's own video that show their process. This video is a bit flaky and it might not load the first time. If the video shows just white, try again.
This is another video that shows the making of a camo pattern celluloid acetate.
http://youtu.be/-dieDZJbBhs