2. The material of 2.PP paper is similar to the photographic paper developed in the photo studio. The material is slightly thinner and covered with a waterproof film, which is suitable for advertising posters and commercial posters.

3. The commonly used materials for posters are: non-woven fabrics, spun silk fabrics, PP paper (commonly known as stickers) and photographic paper.

4. Non-woven fabrics are thick, granular, three-dimensional, not afraid of folding and curling, and can recover quickly. Silk cloth is smooth, light, soft and vertical, which is suitable for wedding ceremony posters.

5. The material of photo paper is similar to that of photo studio, but it is thicker and covered with a waterproof film, which is suitable for making animation posters, high-precision digital life photos and so on.