Gram negative bacteria (e. g. Cyanobacteria) are decolorized, and may be counterstained with other dyes, such as safranin, carbol fuchsin, neutral red.

革兰氏阴性菌(如蓝细菌)则会褪色，但可以被其他染料复染，如碱性藏红、品红或中性红。

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Main products: special dye inkjet colorants, textile coloring dyes, colored dyes special high-grade paper, plastics, dyes and other dyes and polymer materials.

染料化学部-喷墨打印专用染料色浆、纺织着色染料、高档纸张专用着色染料、塑胶染料及高分子材料染料等。

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Other machines usually detect the bases by attaching fluorescent dyes to them and using a camera.

其他机器通常通过附加检测荧光染料，对他们使用相机的基础。

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Batik is dyed by proud craftspeople who draw designs on fabric using dots and lines of hot wax, which resists vegetable and other dyes and therefore allows the artisan to colour selectively by soaking the cloth in one colour, removing the wax with boiling water and repeating if multiple colours are desired.

UNESCO: Culture

Other big brands were accused of using poor dyes or having bad colour quality.

ECONOMIST: Foreign brands encounter a new form of protectionism

"There's lead acetate in hair dyes, lead in lipsticks, formaldehyde and 1, 4-dioxane in baby shampoos and other shampoos, " said Lisa Archer, co-founder and former director of the Campaign for Safe Cosmetics and current director for the environmental group Friends of the Earth.

CNN: Consumer advocates lead push for 'green' cosmetics