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  1. PCE Instruments UK
11 November 2019

Colour Analysis of Plastics with Spectrophotometers

The tabletop spectrometers of the PCE-CSM 3x series from PCE Instruments are used for diverse applications in colour measurement, measuring the colour of plastics and determining the colour difference values to ensure colour consistency of different batches, components and coloured plastic products.

Ever-increasing demands in terms of product quality, as well as the necessity to communicate objectively determined colour values throughout the complete production process and supply chain, make colour spectrometers indispensable tools.

With spectrometers from PCE Instruments, material samples of various compositions can be measured, including solid, powdery and pasty samples, as well as liquids.

Whether samples are opaque, transparent or translucent, the spectrometers can be used for reflectance measurements, as well as transmittance measurements. Essential readings can be obtained with spectrometers through standard light source selection, UV light addition, utilisation of different interchangeable measuring apertures, SCI and SCE mode activation and measuring of geometries d / 8 and d / 0.

The spectrometers do not only provide the colour coordinates from colour spaces such as CIE Lab, LCh, Munsell or s-RGB but also determine the colour differences based on several colour difference formulas like Eab, Euv, E94, Ecmc or E99. The spectrometers can also measure chromaticity values, opacity, whiteness, yellowness, metamerism and also provide spectral reflectance and transmittance curves.

Efficient software allows for numerical and graphical documentation and evaluation of readings, ensuring reliable and clear communication through standardised and globally recognised colour values. With all these possibilities, spectrometers are not only ideal to ensure that quality requirements throughout the complete production process are met, they are also an essential tool in research and development, as well as the analysis of formulae, evaluating raw materials, additives and polymers, as they help to reliably determine the colour of a plastic product throughout its complete life cycle. Its colour is an essential characteristic of quality.

For more information, please visit our website.

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