EVAL FOLDER COSMETIC.pdf, page 11 @ Preflight ( EVAL ... - cosmetics.pdf · EVAL™ EVOH adds...

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)


The world’s largest EVOH production facility

Asia-Pacific

Kuraray Co. Ltd. (Okayama, Japan)


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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TokyoOkayama


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