You should use paper with small amounts of printing. Old envelopes are good for this reason.

你可以使用少量的印刷纸张造纸，旧信封就是很好的原材料，彩纸和少量报纸也可以。

youdao

You should use paper with small amounts of printing. Old envelopes are good for this reason. Colored paper also can be used, as well as small amounts of newspaper.

你可以使用那些有少量印刷痕迹的纸张造纸，旧信封就是很好的原材料，彩纸和少量报纸也可以。

youdao