Permanent inks: inks which do not fade.
耐久墨：不会褪色的油墨。
Permanent inks: Inks which do not fade. Also called Lightfast inks.
耐久墨：不会褪色的油墨。亦称耐光油墨。
"Tattoo inks today are permanent because of the fact that the dye molecules are too big for your body's immune system to take away," explained Anthony Lam, another team member.
另一团队成员安东尼·拉姆解释说：“如今的纹身墨水之所以是永久性的，就是因为其染料分子太大，导致人体免疫系统无法将其去除。”
Again, let the inks air dry for as long as it takes to make a permanent bond.
再次，让油墨干燥的空气，只要它采取做一个永久债券。
Modern writing inks usually contain ferrous sulfate with a small amount of an acid; on paper they darken and bond becoming permanent.
现代写字用的墨水通常包括了硫酸亚铁和少量的酸；写在纸上，颜色会越来越深，且能保持永不褪色。
Modern writing inks usually contain ferrous sulfate with a small amount of an acid; on paper they darken and bond becoming permanent.
现代写字用的墨水通常包括了硫酸亚铁和少量的酸；写在纸上，颜色会越来越深，且能保持永不褪色。
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