COLOUR EQUIPMENT [SPECTROPHOTOMETER]
On this occasion we would like to talk about our Colour Equipment, a reflection spectrophotometer used to measure colour.
What is a reflection spectrophotometer for?
A reflection spectrophotometer allows colour measurement in the CIELAB space of solid samples, pastes, granules… in a few seconds. In this way, we can easily obtain the colour coordinates of the product or compare it with another reference product.
Q: What is the CIELAB colour space?
A: It is the most widely used space and units for colour determination.
L* a* b* are coordinates that define a colour, these coordinates can be represented in the chromatic circle and in this way the representation of the colour would be visual, we could define each one of them as
L* = Luminosity.
a* = Colour tendency to red (positive) or green (negative).
b* = Colour tendency to yellow (positive) or blue (negative).
P: And what are its real applications?
R: We use it for:
– Analyze the samples at reception and see variations in chlorine with our previous samples
– Analyse the different colour intensity in pigments, practically imperceptible to the human eye.
– To determine the whiteness of a product, which is essential for a wide variety of applications
And all these applications can be combined with our climatic chamber, to see how climatic and ageing variations affect the colour of our products.