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PACKAGING PET Packaging for Dairy Industry PET containers must have distinctive form and color to create product identity and build product recognition on the store shelves. In addition to the aesthetic reasons for choosing a particular color, functional considerations are of vital importance: vitamins in dairy products must be protected from the harmful effects of light, and the colors and additives in the PET container must be homogenously distributed in order to provide maximum protection. Excellent distribution Homogenous distribution of the colorant throughout the PET bottle is an absolute must. Otherwise, both product integrity and aesthetics will be compromised. Streaks and swirls may appear in the preform, resulting in high scrap rates during the blowing process, which can lead to production problems and increased costs. HOLLAND COLOURS NV Halvemaanweg 1 I 7323 RW Apeldoorn I The Netherlands T + 31(0)55-368 0700 I F + 31(0)55-366 2981 firstname.lastname@example.org I www.hollandcolours.com PACKAGING Preserving vitamins Both natural and artificial light can cause the essential vitamins and nutrients to deteriorate in dairy products. Exposure to light can also adversely affect flavor. The severity of these effects depends on the composition of the dairy product itself, the intensity, duration and wavelength of the light. In the UV and visible spectrum the damage is caused by wavelengths up to 550 nm, especially between 380 nm and 550 nm. Since clear PET bottles only offer protection up to 320nm, light-absorbing additives and protective colors, most often titanium dioxide (TiO2 ), are therefore essential. The graph shows the effectiveness of TiO2 for wavelengths above 380 nm. 100 90 80 70 60 Transmission [%] 50 40 30 20 10 0 300 320 340 360 380 400 420 440 460 480 500 550 Wavelength [nm] 1.6% TiO2 3.2% TiO2 4.8% TiO2 Uncoloured PET Holland: email@example.com Mexico: firstname.lastname@example.org United Kingdom: email@example.com Indonesia: firstname.lastname@example.org Hungary: email@example.com China: firstname.lastname@example.org USA: email@example.com Japan: firstname.lastname@example.org Canada: email@example.com Great colors, great protection Dairy product packaging should do more than simply protect the product. It should also promote sales with attractive designs and eye-catching colors. Holcoprill With its specially designed colorants for dairy packaging, Holland Colours has developed a system for coloring PET containers that assures outstanding protection and homogenous color distribution with a range of truly dynamic opaque colors designed specifically for the dairy industry. The protection provided varies from color to color, as indicated on the accompanying graph, and can be supplemented with light- absorbing additives to provide protection for products such as flavored milk and yogurt. Light protection of some colors developed by Holland Colours 60 50 40 Transmission [%] 30 20 10 0 300 350 400 450 500 550 600 650 700 750 Wavelength [nm] Light Brown Red Brown PACKAGING Global partner in coloring Holland Colours’ global presence and professional technical service assures trouble-free coloring wherever your production facility is located. Our state of the art color laboratories are equipped with the latest color-matching technology. With its wide range of processing and lab equipment, Holland Colours can support its partners with valuable analytical data to assist in developing higher quality end products. Holland Colours’ colorants for PET packaging are functional and dynamic, helping you build your desired brand identity. What you get with Holland Colours is a global sales and service network providing the highest quality products and service. For more information on our line of colorants for PET dairy packaging, please contact the nearest Holland Colours location or visit our website: www.hollandcolours.com Disclaimer The information contained in this brochure has been prepared for promotional purposes and should only be used for guidance. This information should not be considered as a guarantee under any circumstances. Holland Colours makes no warranty, expressed or implied, and assumes no legal liability or responsibility for the accuracy, completeness or usefulness of any information contained herein. If additional information is required, please contact your local Holland Colours sales representative.
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