Cosmetic packaging
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EVAL™ EVOH adds valuable function to cosmetic packaging
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OPPOriented polypropylene
OPET
OPA
EVAL™ E
EVAL™ F
LDPELow density polyethylene
Kuraray Co., Ltd. is the world leader in EVOH (ethylene vinyl-alcohol copolymer)
production and development. An EVAL™ layer thickness of only a few microns offers
a superior barrier against oxygen, fragrance and contamination, and due to its
chemical resistance reduces scalping and permeation of valuable ingredients. Highly
functional as an inside barrier layer, EVAL™ is also easy-to-print, and when used
outside provides transparent high gloss and anti-static properties. EVAL™ helps
extend product shelf life, and assure that cosmetic products reach the customer
with their quality and properties intact.
Aroma Essence Solvents
Outer layer
Regrind
Tie
Tie
Inner layer
EVAL™ EVOH
Oxygen Contamination
“1 mm of EVAL™ provides about the same gas barrier properties
as a 10 metre thickness of LDPE.”
Oxygen permeation through various polymers
Typical co-extruded multilayer structure
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Bringing value and quality to the customer, intact Prolonging formula integrity
The barrier properties provided by EVAL™ work in both directions. Gas barrier properties
keep oxygen out, avoiding the tainting or degradation of sensitive components in the
product formula. The effective shelf life can usually be extended, avoiding waste and
generating savings in distribution.
At the same time, the chemical and aroma barrier properties keep volatile and valuable
ingredients inside the package where they belong, making sure product value and
quality reach the consumer intact.
Oxygen permeation through EVAL™ EVOHGrade Et.Cont.
(mol%)Density*1
(g/cm³)MFR*2
(g/10min)Tm (°C)
Tg*3 (°C)
OTR*4 (cm³.20µm/m².day.atm)
Application
F101B 32 1.19 1.6 183 69 0.4 tube, bottle, vial, filmF171B 32 1.19 1.8 183 57 0.4 tube, bottle, vial, filmT101B 32 1.17 1.7 183 69 0.5 thermoformed jar, potH171B 38 1.17 1.7 172 53 0.7 filmE105B 44 1.14 5.7 165 53 1.5 tube, film
*1: 20°C *2: 190°C, 2160g *3: dry *4: OTR, 20°C, 65% RH (ISO 14663-2)
Prolonging packaging integrity
As formula ingredients become more sophisticated, they can be more senstive but also
more aggressive. Especially with certain oils, mascara and hair dye products,
ingredients can permeate through plastic packaging, damaging the printing and
outward appearance of the product.
An internal layer of EVAL™ works as an effective barrier to product permeation and
scalping, protecting appearance and extending the effective shelf life and possible
distribution time of the product.
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The widest range of grades
Using Kuraray technology, a variety of EVAL™ grades has been developed specifically
for different methods of production and secondary processing of cosmetic packaging.
Co-extruded or laminate-based tube, blow moulded bottle or vial, even transparent
thermoformed cup or jar, there is an EVAL™ reference with the perfect balance of
required properties. The result is world’s widest available range of EVOH grades.
EVAL™ M type has the lowest ethylene content available, and provides the highest barrier for
automotive and flexible applications.
EVAL™ L type has a very low ethylene content and is suitable as an ultra-high barrier grade in flexible,
bottle and sheet applications.
EVAL™ F typeoffers superior barrier performance with long-term run stability, and is widely used as
the standard grade for blow-moulded bottles and vials, both co-extruded and laminate-
based tubes, as well as flexible and fuel barrier applications. Specific versions exist for
coating and pipe applications.
EVAL™ T type was specially developed to obtain reliable layer distribution in thermoforming, and has
become the industry standard for multilayer sheet and thermoformed flexible applications.
EVAL™ J type offers thermoforming results even superior to those of T, and can be used for unusually
deep-draw or sensitive sheet-based applications.
EVAL™ C type can be used for high-speed co-extrusion coating and cast flexible applications.
EVAL™ H type combines high-barrier properties and long-term run stability and thermoformability.
The higher ethylene content allows easier processing and longer running times on older
co-extrusion equipment, especially for blown flexible structures.
EVAL™ E typehas a higher ethylene content that allows for greater flexibility and even easier processing.
EVAL™ G type has the highest ethylene content, making it the best candidate among standard EVAL™
grades for stretch and shrink film applications.
M
L
H
F T J
C
24 mol%
25
26
27 mol%
28
29
30
31
32 mol%
33
34
35 mol%
36
37
38 mol%
39
40
41
42
43
44 mol%
45
46
47
48 mol%
49
50
G
E
EVAL™ grade selection guide
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Technical barrier properties
Flavour adsorption of plastics n-Butyl acetate (Fruity odour) Ethyl acetate (Fruity odour)
Amount Ratio Amount Ratio
Name Thickness (mm) Surface area (m²) (ppm) (ppm/m²) (ppm) (ppm/m²)
EVAL™ F grade 15 1.13 160 140 <50 <40
PET 12 1.19 70 60 <50 <40
PA 25 0.71 620 870 <50 <40
PP 60 0.37 610 1,650 <50 <40
LLDPE 30 0.70 390 560 <50 <40
LDPE 60 0.36 420 1,170 <50 <40
EVA 60 0.36 560 1,560 <50 <40
Various plastic films were dipped into an Ethanol solution containing 0.1% flavour
Aroma permeation of various structures (Days to Leakage)
Aroma permeability of various structures
Structure Thickness (µm) Vanilla Menthol Piperonal Camphor
PET/EVAL™ F/PE 12/15/50 15 25 27 >30
OPP/EVAL™ F/PE 18/15/50 30 >30 27 >30
PET/EVAL™ F 12/15 >30 >30 30 >30
ONY/EVAL™ F 15/15 2 >30 27 30
PET/PE 12/50 2 16 5 >30
ONY/PE 15/50 2 20 5 28
PET/PVDC/PE 12/2/50 7 >30 6 30
BOPP/PVDC/PE 18/2/50 6 2 1 13
PET/PVDC/PE 20/2 5 6 1 7
Structure Allyl sulfide Acetic acid Ethyl phenyl Acetate
Beta pinene Ethyl Acetate Menthol
HDPE/NY/EVA - 32µm <0.08 920 9.9 <0.99 30 9.9
HDPE/EVOH/EVA - 32µm
<0.75 35 >2 <0.99 4.3 <0.99
LDPE/NY/EVOH/NY/LDPE - 36µm
/ / >2 <0.99 5 <0.99
PP/PET/PP - 25µm / / >9.9 >90 >5 >0.99
BOPP/PVDC - 25µm <6.8 1980 <9.9 <90 340 /
Gas chromatography; mg/m².day - 23°C - 75% RH
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Flavour Permeability
Structure D-Limonene Unit
EVAL™ F101B - 20µm 45.8 mg/m².d
EVAL™ E105B - 20µm 55.5 mg/m².d
HDPE - 20µm 1,220.10³ mg/m².d
LDPE - 20µm 1,510.10³ mg/m².d
EVA (5% VAc) - 20µm 1,880.10³ mg/m².d
EVA (7% VAc) - 20µm 2,240.10³ mg/m².d
PP - 20µm 1,500.10³ mg/m².d
Measuring conditions 20°C-65%RH
High gloss and anti-static for exterior use
For complete reliability and cost optimisation, the EVAL™ barrier is normally
added as a very thin interior layer in a multilayer co-extruded structure. However,
there are advantages to using EVAL™ on the exterior of the package as well.
EVAL™ can usually be printed without special surface treatment. It is transparent,
and when used on the outer surface of a tube, vial or jar offers an attractive high
gloss finish.
Since EVAL™ also has good anti-static properties, external layers also tend to
avoid dust build-up when displayed on store shelves.
Although less absolutely reliable than an interior layer, EVAL™ is abrasion
resistant and when used outside will still provide barrier properties to the package.
For very senisitive formulas, two layers can be used, one for exterior gloss and
printability, and the other as an optimised functional barrier layer.
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EVAL™ applications in cosmetic packaging
EVAL™ used in flexible applications
Barrier flexible structures are usually used for the production of laminate tubes.
Although they have a visible seam, they provide an alternative to co-extruded tubes.
Flexible structures can also be used for pouches or inner liners for dispensers, or lami-
nated to completely new materials to provide functional barrier to innovative packaging.
The advantagesEVAL™ resins used in flexible applications:
• Make for an excellent oxygen and fragrance barrier.
Typical applications Typical structure (in/out)
Cosmetic creamsToothpasteSkin care agentsShower cream
PE/tie/EVAL™/tie/PE
PE/regrind/tie/EVAL™/tie/PE
EVAL™ used in co-extruded tube applications
Co-extruded plastic tubes offer an attractive appearance, avoiding visible back seams.
Although flexible and easy to squeeze, they return to their original shape and normally
do not require additional external packaging. A thin interior EVAL™ layer provides func-
tional barrier properties to the entire structure.
The advantagesEVAL™ resins used in tube applications:
• Prevent oxygen from penetrating the package and ensures that the
substances and the active agents of the cosmetics are kept inside the package.
• Make for an outstanding aroma barrier to prevent the outward diffusion
of the perfumes.
• Are flexible and easy to squeeze.
• Allow very low scalping and permeation of the ingredients.
• Provide glossiness when used as an outside layer.
• Can be printed with high-quality graphics to increase the visibility and
the attractiveness of the package.
• All-plastic structure for better appearance, reduced outer packaging, and easier
disposal at end of life.
Processing method- Tube co-extrusion
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• Ensure preservation of cosmetic agents and fragrances inside the package
• Can be left transparent and can be easily printed with high-quality graphics.
• Provide reliable barrier properties during processing, filling and transport.
Processing method- Co-extrusion cast and blown film
Typical applications Typical structure (out/in)
ShampooRefreshment towelsToothpaste
PE/tie/EVAL™/tie/PE
PE/tie/EVAL™/tie/PE/PE
EVAL™ used in blow moulded bottle and vial applications
Cosmetic packaging has to provide product preservation without any loss of quality of
the product. Moreover, the quality and attractiveness of the package itself is becoming
increasingly important. Cosmetic packaging does not only have to keep oxygen out,
it also has to ensure that the active agents of the cosmetics are well preserved inside.
Even when the product is in use, the package has to avoid that perfumes or other
fragrances alter or lose their performance.
The advantagesEVAL™ resins used in bottle applications:
• Provide an excellent barrier against oxygen and fragrances.
• Offer resistance to the chemical ingredients of the cosmetic products.
• Keep the fragrances and the cosmetic agents inside the package,
even when the product is in use.
Processing method- Co-extrusion blow moulding
Typical applications Typical structure (in/out)
Perfume bottlesCosmetic creams PP/regrind/tie/EVAL™
PE/regrind/tie/EVAL™PP/regrind/tie/EVAL™/tie/PPPE/regrind/tie/EVAL™/tie/PP
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A one millimetre thickness of EVAL™
EVOH has about the same gas barrier
properties as ten metres of LDPE. With
such high performance, EVAL™ layers of
only a few microns can add real func-
tion to multilayer structures. Barrier
performance previously only available
from metal or glass can thus be added
to lighter weight structures based on
other recyclable and energy recoverable
plastics, or renewable resources like PLA
and paperboard.
Reducing wasteAlthough packaging development tends to
focus specifically on EVAL™’s functional
barrier properties, EVAL™ helps conserve
resources and avoid waste throughout a
product’s life cycle. Reducing waste, and
thus avoiding the loss of all resources in-
vested in the production and distribution
of fresh food, is the best way to reduce
environmental impact.
More function, less packagingWhen used in packaging, EVAL™ layers
of just a few microns allow to use fewer
resources while providing valuable barrier
function. Optimised portion size and light
weight help improve the efficiency of
storage, transport and display. Extended
freshness and the protection of quality
help reduce waste, conserving resources.
Recyclable and recoverableEVAL™ EVOH is recyclable, and is com-
monly used in regrind structural layers
rigid food packaging such as bottles, cups
and trays. It can also be used for post-
consumer recycling, and will not disrupt
polyolefin or PET recycling streams.
EVAL™ has excellent and safe energy
recovery properties, often reducing the
amount of extra fuel necessary for energy
generation from the thermal disposal of
sorted waste. Under perfect combustion,
the few microns of EVAL™ in a package
emit only small amounts of CO² and
water vapour.
In addition to ISO 9001:2000, EVAL
Europe nv is compliant with ISO 14001:
2004 and ISO/TS16946 standards.
More info at www.eval.eu
Environmental benefits of EVAL™ resins
The best way to reduce impact on the environment is to minimiseboth product and packaging waste. EVAL™ EVOH resins can help,providing valuable function often while reducing the total amountof packaging. This generates savings by conserving resources,improving efficiency and avoiding waste, often throughout theentire life cycle of the product.
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Kuraray has been manufacturing and
marketing ethylene vinyl-alcohol co-
polymers (EVOH) under the name
EVAL™ since 1972, and remains the
world leader in EVOH production and
market development.
EVAL™ is one of Kuraray’s core
businesses and is produced globally in
Japan, the USA and Europe. The sales
and technical development of EVAL™ is
supported by specialised local teams in
each region.
Building better barriersEVAL™ resins help conserve resources
at all stages of the product life cycle
and help reduce waste. EVAL™ is widely
used as a functional gas and flavour/
aroma barrier in food, cosmetic and
health care packaging, and as a gas,
solvent and odour barrier in con-
struction, industrial, agricultural and
automotive fuel system applications.
Introducing Kuraray and EVAL™
Kuraray Co., Ltd. was established in 1926 in Kurashiki, Japan, for the industrial manufacture of chemical fi bres. As the world’s largest producer of vinyl acetate monomer (VAM) derivatives, Kuraray has long been a leader in high gas barrier technology and development. Today the Kuraray Group consists of about 70 companies, employing around 7,000 people worldwide.
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EVAL™ the world’s leading EVOH
Europe
EVAL Europe nv (Antwerp, Belgium)
Capacity: 24,000 tons/year
Europe’s first and largest EVOH production facility
Kuraray America Inc. (Houston, Texas, USA)
EVAL Company of America (Pasadena, Texas, USA)
Capacity: 35,000 tons/year
The world’s largest EVOH production facility
Asia-Pacific
Kuraray Co. Ltd. (Okayama, Japan)
Capacity: 10,000 tons/year
The world’s first EVOH production facility
NOTICE
The information, specifications, procedures, methods and recommen-
dations herein are presented in good faith, are believed to be accurate
and reliable, but may well be incomplete and/or not applicable to all
conditions or situations that may exist or occur. No representation,
guarantee or warranty is made as to the completeness of said infor-
mation, specifications, procedures, methods and recommendations
or that the application or use of any of the same will avoid hazards,
accidents, losses, damages or injury of any kind to persons or
property or that the same will not infringe patents of others or give
desired results. Readers are cautioned to satisfy themselves as to the
suitability of said information, specifications, procedures, methods
and recommendations for the purpose intended prior to use.
Contact
EVAL Europe nv
Haven 1053
Nieuwe Weg 1 - Bus 10
B-2070 Zwijndrecht (Antwerp)
Belgium
Telephone +32 3 250 97 33
Fax +32 3 250 97 45
www.eval.eu
EVAL™ resins are produced worldwide under unified Kuraray product
and quality specifications.
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Singapore
TokyoOkayama
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