Pet bottle preforms

 

Color measurement of PET bottles and preforms

 

Across different product groups, plastic bottles and preforms play an important role in marketing a company's product. Their unique designs, shapes and colors are designed to best appeal to consumers, appropriately present the products they contain and increase recognition.


Plastic bottles and preforms differ in size, shape and color. Like all plastic products, they can be opaque, translucent or transparent. Color measurement requirements can extend beyond transmission and reflectance measurement of spectral data to include CIE L*a*b* color, yellowness index, haze and other appearance-related properties.

Our solutions for your products:

Vista

Standard-compliant testing of color and haze

    Spectral color measurement on transparent and translucent samplesIncludes all common color numbers/indicesUSB connection for keyboard, barcode reader or data carrierComprehensive QC software integrated or external via PC (both also possible as ER version)Long-lasting LED technologyIntelligent user interface and data management
Find out more about the Vista. Request a quote!

UltraScan VIS

Color measurement of opaque and translucent samples

    Precise spectrophotometer with 10 nm resolution Output of CIE/ASTM color values and other indices and color number diffuse/8° measurement geometry Comprehensive QC software externally via PC (also possible as ER version)
Find out more about the UltraScan VIS. Request a quote!

"Farbmessung an 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 color of these preforms is the first step in ensuring consistent color quality of the final product they become.

Preforms come in a range of sizes, shapes and colors. They can be opaque, translucent or transparent and therefore require different measurement techniques depending on the sample type.


Opaque preforms are not penetrated by light and are best measured using a reflectance meter with a diffuse d/8° spherical geometry.


Translucent preforms allow light to pass through, regularly but also diffusely, so that objects on the other side cannot be clearly distinguished. Both reflective and transmissive measurement modes work well depending on the light transmittance of the sample.


Transparent preforms allow light to pass through with little or no interruption or distortion, allowing objects on the other side to be clearly seen. These preforms can easily be measured in transmission.


Please note: Which method is used must always be checked individually.

Suitable measuring devices for the application


    UltraScan VIS for opaque, transparent and translucent preformsVista for transparent and translucent preforms


Talk to us, we will be happy to advise you!

Further information for you on the topic:

Vista brochure

UltraScan VIS brochure

Would you like to find out more about color measurement of preforms and PET bottles?

We help you maintain the quality standards for your product and offer your customers a consistent visual appearance. Fill out the form or contact us by email or telephone, we look forward to hearing from you!

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