パルプ紙とか洋紙も酸性であんまつよくないはず。昔の海外の雑誌とかすぐボロボロになるもんね。和紙はかなり丈夫。
Mastodon is the best way to keep up with what's happening.
Follow anyone across the fediverse and see it all in chronological order. No algorithms, ads, or clickbait in sight.