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Photo paper structure introduction
May 28, 2018

Photo paper is divided into four to five layers:


1. The base of paper base is fiber paper base that meets a top quality standard. The photographic paper base must be white in color, uniform in texture, and not easily deformed. Paper bases have different thickness standards.


2, yttrium oxide layer. A thin layer of yttrium oxide is added to the photographic paper base to fill the small defects of the photographic paper base and increase the whiteness of the photographic paper.


3. A photographic paper with a resin layer is provided with a polyethylene resin layer on the yttrium oxide layer to prevent the chemical liquid from entering the paper base when the photographic paper is washed. A photographic paper without a polyethylene resin layer is referred to as a paper-based photographic paper, and a photographic paper with a polyethylene resin layer is referred to as a plastic photographic paper.


4, emulsion layer.


5, photographic paper surface protection layer


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