牙膏为什么各种颜色条分得开?

2025-04-06 04:15:35

推荐回答（3个）

回答1：

原理就是牙膏是从后面装进去，然后把后面封口，生产时按照比例不同颜色的灌进去即可，因为近似固体并不会混合颜色的，挤出来的就是分开颜色的彩色牙膏，具体看图便明白了：
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回答2：

原理就是牙膏是从后面装进去，然后把后面封口，生产时按照比例不同颜色的灌进去即可，因为近似固体并不会混合颜色的

回答3：

牙膏的各种不同成分的颜色不同，有的绿有的白而且不管怎么挤来挤去都分得开。