How big is G200A6 photographic paper?

G200A6 photographic paper is 105* 148mm. 6 inches is102 *152 mm.10 *15 is 100* 150. 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.

Main classification

Photographic paper is divided into three categories according to the way of outputting images. Silver salt photographic paper is a traditional photographic paper, which has certain wet strength, acid and alkali resistance, high stiffness and folding resistance. Paper is coated with photosensitive emulsion, and its image can be preserved for a long time after illumination and chemical development.

On the barium base paper made of high-quality photographic base paper, a coating made of barium sulfate and alum glue is evenly coated, then a photographic emulsion made of gelatin and silver halide is coated, and then a protective film is coated on the emulsion coating. By changing the ratio of silver halide to gelatin in photographic emulsion, controlling curing conditions and adding sensitizing pigments, printing papers with different sensitivities were obtained.

According to the different types of photosensitizers in the coating emulsion, it is divided into different types of printing paper. For example, monochrome printing paper includes slow photosensitive printing paper, bromine printing paper, chlorine bromine printing paper and so on. Color printing paper is made by coating three kinds of photochromic silver salt emulsions on base paper or barium base paper.