Traditional Culture Encyclopedia - Photography and portraiture - 6 inch Le Kai Bai Sheng portrait glossy paper weight
6 inch Le Kai Bai Sheng portrait glossy paper weight
Photographic paper, also known as photographic paper, photographic paper and photographic paper, is divided into three categories according to the way of outputting images, namely silver salt photographic paper, inkjet photographic paper and printing photographic paper in the traditional sense. At present, photographic paper is widely used in professional image output fields such as wedding photography and children photography. There are also home office advertising materials, menus, business cards, resumes and various public areas.
Photographic paper is divided into four to five layers:
1, the paper base is a fiber paper base that meets the quality standards. The paper base of photographic paper must be white in color, uniform in texture and not easily deformed. Paper base has different thickness standards.
2. Barium oxide layer. A thin layer of barium 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. For photographic paper with resin layer, add a polyethylene resin layer on the barium oxide layer to prevent chemical liquid from entering the paper base when washing photographic paper. Photographic paper without polyethylene resin layer is called paper-based photographic paper, and photographic paper with polyethylene resin layer is called plastic-coated photographic paper.
4. Photosensitive emulsion layer.
5, photographic paper surface protection layer.
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