Colour measurement of PET bottles and preforms
Across various product groups, plastic bottles and preforms play an important role in marketing a company’s product. Their unique designs, shapes and colours have been developed to appeal to consumers in the best possible way, to present the products they contain appropriately and to increase recognition value.
Plastic bottles and preforms differ in size, shape and colour. Like all plastic products, they can be opaque, translucent or transparent. Colour measurement requirements can go beyond transmission and reflectance measurement of spectral data to include CIE L*a*b* colour, yellowness index, haze and other appearance related properties.
Our solutions for your products:
Vista
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Colour & Haze
Simultaneous measurement of colour in transmission and haze. -
Enough space for samples
Large transmission shaft for many sizes and types of cuvettes, vials and foils. -
Integrated QC software
The EasyMatch QC Essentials quality control software is integrated into the device and provides all the required colour indices, colour numbers and metrics.
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Full spectrum
Illumination range of 400-700 nm and long-life LED combination module -
Smart user interface
Your measurement results can be easily transferred to existing LIMS or SPC systems. -
Easy to use and precise
Simple "one touch" measurement reduces training time, optimizes the workflow and increases your productivity.
UltraScan VIS
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Reflection
Measuring apertures with 25.4 mm and 9.35 mm provide the prerequisite for precise measurement results in reflection. -
Transmission
Large transmission compartment with 100 mm depth for measurements in total and regular transmission to determine colour/opacity. -
Construction & function
The device complies with the internationally recognized colour measurement standards of ASTM, DIN and ISO.
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10 nm resolution
With a true optical resolution of 10 nm, the UltraScan VIS offers high accuracy for measurements on liquids and solutions. -
CIE-recommended measuring range
The UltraScan VIS covers the wavelength range from 360 nm to 780 nm recommended by the CIE. -
Robust
Solid construction with optical bench and protected transmission range thanks to sliding cover.
Application example:
Opaque and transparent preforms Preforms are injection-molded and then stretch-blown into the shape of plastic bottles, jugs and other containers. They are used to package beverages, detergents, spices and numerous other consumer products. Managing the colour of these preforms is the first step in ensuring consistent colour quality of the final product they become. Preforms come in a range of sizes, shapes and colours. They can be opaque, translucent or transparent and therefore require different measurement techniques depending on the type of sample. Opaque preforms are not penetrated by light and are best measured using a reflectance meter with a diffuse d/8° spherical geometry....
Further information for you on this topic:
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Vista brochure
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UltraScan VIS brochure
HunterLab worldwide:
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Europe / Middle East / Africa
HunterLab Europe GmbH
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Dr.-August-Einsele-Ring 15
82418 Murnau
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+49 8841 9464
Your local partner:
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Headquarters, North / South America
Hunter Associates Laboratory, Inc.
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11491 Sunset Hills Road
Reston, VA 20190-5280
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+1 571 470 6028
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Asia-Pacific
HunterLab Asia Limited -
Flat E, 13F Leahander Centre,
28 Wang Wo Tsai Street,
Tsuen Wan,
New Territories,
Hong Kong -
+852 2406 1723
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