What's the difference between digital photography background paper and background paper?

What is the difference? Mainly the differences in materials and colors.

Different materials directly affect the reflective characteristics of the surface and also affect the color relatively.

Good background paper is positive in color and not easy to fade. Some domestic low-end paper is not good in color, gray, not gorgeous and poor in paper quality.

And draw surreal paper with relatively cheap PP paper.

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No, the change of coating directly affects its reflective characteristics and naturally affects the color. So there is a change.

You said it was a stunt, and it hasn't changed. Let me ask you, how long do you stay in the studio every year? How many movies have you made? How many kinds of background paper have you used?