I have used a blog format for open ended topics. Each of these includes a comment section so industry professionals can talk about their experiences and voice their opinions.
Toxicology This topic warrants a separate discussion. The early plastics colourist’s palette was dominated in the yellow, orange, red part of the colour spectrum by cadmium and lead containing pigments. Both types produce bright, opaque full-shade colours. Cadmium shades are slightly cleaner, brighter and cover a wider part of the colour spectrum, extending into greener
Pigment Levelling through Nucleation Nucleating additives increase the polymer’s crystallization temperature and its rate of crystallization. This can improve physical properties, control warpage and improve processing speed. Clarifiers are nucleating additives that also generate optical property improvements. Nucleants are commonly used, especially in PP, to confer those benefits. All pigments consist of particles, which provide
How the high performance pigment palette for polyolefins changed over time These have not changed A laboratory producing custom colours for all types of polyolefin convertors needs a base range of pigments that will be problem free in most applications. When establishing a core pigment palette aimed at high performance polyolefin applications, the key properties
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