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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
info@hollandcolours.com 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: info@hollandcolours.com Mexico: mexico@hollandcolours.com
United Kingdom: uk@hollandcolours.com Indonesia: surabaya@hollandcolours.com
Hungary: szolnok@hollandcolours.com China: china@hollandcolours.com
USA: richmond@hollandcolours.com Japan: japan@hollandcolours.com
Canada: canada@hollandcolours.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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