cellulose acetate base การใช้

• From the late 1930s to the 1980s, microfilms were usually printed on a cellulose acetate base, which is prone to tears, vinegar syndrome, and redox blemishes.
• Microfilm with a cellulose acetate base ( popular through the 1970s ) is frequently subject to vinegar syndrome, redox blemishes, and tears, and even preservation standard silver halide film on a polyester base can be subject to silvering and degradation of the emulsion all issues which affect the quality of the scanned image.