5 sentences

1. 这种染料是从蓝草中提取的。

   zhè zhǒng rǎn​liào shì cóng lán​cǎo zhōng tí​qǔ de.

   This dye is extracted from indigo plants.

   Source: Dong Chinese Dictionary

2. 这种天然染料不会伤害皮肤。

   zhè zhǒng tiān​rán rǎn​liào bù huì shāng​hài pí​fū.

   This natural dye does not harm the skin.

   Source: Dong Chinese Dictionary

3. 古人常采涅石作为黑色染料。

   gǔ​rén cháng cǎi niè shí zuò​wéi hēi​sè rǎn​liào.

   Ancient people often used alum shale as a black dye.

   Source: Dong Chinese Dictionary

4. 茜草的根部可以提取出天然的红色染料。

   qiàn cǎo de gēn​bù kě​yǐ tí​qǔ chū tiān​rán de hóng​sè rǎn​liào.

   Natural red dye can be extracted from the roots of madder.

   Source: Dong Chinese Dictionary

5. 这件衣服洗掉了染料，露出了布料的本色。

   zhè jiàn yī​fu xǐ diào le rǎn​liào, lù​chū le bù​liào de běn​shǎi.

   The dye washed out of the garment, revealing the original color of the fabric.

   Source: Dong Chinese Dictionary