Optical and visual properties

We measure the optical properties of packaging materials, technical films and agricultural films using standardised methods and other suitable physical measurement procedures. In recent years, applications have included the quantitative evaluation of the transparency of lidding films for food trays, the privacy effect of opaque films for window coatings, the light-protection properties of coloured films or films with a transparent UV blocker, and the infrared transmission of greenhouse films.

Food packaging: checking optical properties

For food packaging, optical properties are more than a question of appearance. They also matter for how well the packaging performs. If you want to test the optical properties of your films precisely, we are the right partner. Below you will find which optical properties we can test, which test procedures are available and more on innoform-testservice.de.

Optical properties: testing with different measurement techniques

Several tests can be used to determine the properties of your material with regard to optical characteristics. Tests in this area include, for example:

• Optical density testing
• Light density measurement on films
• Gloss measurement
• Opacity measurement
• Determination of haze

Our testing service therefore offers test procedures for measuring the optical properties of packaging materials, technical films and agricultural films, using standardised and accredited methods as well as other suitable physical measurement procedures. In recent years they have been used, for example, for the quantitative evaluation of the transparency of lidding films for food trays, the privacy effect of opaque films for window coatings, the light-protection properties of coloured films or films with a transparent UV blocker, and the infrared transmission of greenhouse films.

Accredited quality for testing optical properties

As an established partner for testing optical properties, Innoform Testservice has all the test procedures needed to test to standard and under accreditation. A list of the standards underlying our optical tests, and many other test standards, can be found on our website. That way you can be sure that your films or other test objects meet all legal requirements. We keep developing our test standards and test parameters for optical properties and can adapt them to customer requirements, so that we always examine your products using current standards and practical parameters.

Questions about testing optical properties? Request information now!

Testing the optical properties of food packaging yields a lot of information that can be of interest to you as a manufacturer. Whether you want to test optical density or need support with gloss measurement, if you need an expert in testing optical properties, the accredited Innoform Testservice is a competent partner. We support you with our know-how from many years of experience and help you analyse optical properties. If you are not sure which area of optical testing applies, which standard is current or which test conditions should be observed, we are happy to help – contact us. Our friendly and competent team is at your disposal.

Your contact person

Matthias Böhne

+49 441 94986-11
matthias.boehne@innoform.de

Relevant test methods

• Permeation
• Mechanical properties