TECHNOLOGY | COLOUR MEASUREMENT
SpectraVision’s Tools SV software component
allows the user to simply assess captured data
Image: Datacolor
cannot effectively provide accurate and repeatable measurements. This involves the ability to separate colours from multi-coloured patterns and to identify shadows in textured material. Currently, such complex samples are being measured visually, which is subjective. Datacolor has developed SpectraVision, which enables manufacturers to perform repeatable colour measurements for multi-coloured and/or textured materials, to meet this need. It combines a hyperspectral spectrophotometer with formulation and quality control software to measure, formulate, analyse, report, communicate, and visualise accurate colour results. The company says Spectra- Vision provides masterbatchers and compounders with a number of benefits. These include: improve- ment of product quality with objective colour evaluation; increase in efficiency by reducing the steps to match colour; reduction in cost and waste due to fewer batch corrections; and faster and more accurate colour formulation based on digital measurement data. The company says the device creates 31 digital images of the sample through 31 filters. These filters are used to identify colours and exclude the shadows or any other detail, allowing an objective measurement of the object for the ‘true colour’. SpectraVision’s Tools SV software component allows the user to assess the captured data with a variety of features. These include: creating colour collections for ease of management; automatically separating colours for greater efficiency; calculat- ing coverage factor for correct colour ratios in the final product; and honing assessments with quality parameters, including separation method adjust- ments, masking tools and border size. Shareable
28 COMPOUNDING WORLD | July 2018
files are then created for each imaged colour region. User defined fields and other data can be exported for reporting. The company adds that future developments include leveraging the spectral data from SpectraVision to improve the colour formulation process.
Challenging parts Meanwhile, HunterLab has developed the Aeros spectrophotometer. This colour measurement device features auto height positioning, a rotating sample platform providing a large sample measure- ment area, large touch-screen display, and smart communications through the company’s EasyMatch Essentials colour quality control software. The company says Aeros is well suited to
measuring the colour of irregularly shaped and textured product samples, such as pellets. Its automatic height positioning determines the distance between sensor and sample, then automatically adjusts for optimal measurement. Non-contact measurement also eliminates possible contamination of either sensor or sample, and so reduces clean-up time. In operation, the samples are simply placed in the Aeros instrument and measured by automatic rotation beneath the Smart Sensor – the company says that 35 measurements can be taken over 27.5 square inches (70cm2 sample in just five seconds.
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CLICK ON THE LINKS FOR MORE INFORMATION: �
www.xrite.com �
www.pantone.com �
www.konicaminolta.eu �
www.datacolor.com �
www.hunterlab.com
www.compoundingworld.com
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