Traditional Culture Encyclopedia - Photography major - When did gelatin dry printing technology come out?

When did gelatin dry printing technology come out?

Since the invention of collodion photography, people have been exploring a better coating material A that can be used "dry" after coating, so as to get rid of all kinds of inconvenience when using collodion. 19 in the 1970s, this wish finally came true. A gelatin dry printing process came out.