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Overview
3.
In depth discussion:
WET WIPES & COSMETIC
PACKAGING PRODUCTS
(September 21st, 2007)
next stage:
4.
5.
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In depth discussion: vacuum packing and
MAP (modified atmosphere packaging)
(October 22nd, 2007)
In depth discussion: cold-seal and
countline flow-pack
(November 23rd, 2007)
also available on our internet site
www.neophane.it
Neophane welcomes
Maurizio Perodo
to the Commercial Team of
Neophane S.p.A
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Overview n°3, 09/21/07 - page 2/12
Overview N° 3
Sept. 21st, 2007
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WET WIPES &
COSMETIC PACKAGING
PRODUCTS
Overview n°3, 09/21/07 - page 3/12
The packaging
The packaging field, is a heterogeneous sector that has different
branches. Each branch has unique and critical characteristics. To
face these differences, Neophane studies a multiplicity of
structures, always keeping in mind the principal functions of a
pack:
- to contain the product
- to protect it from mechanical damage
- to assure a suitable barrier to gas and other vapour
- to prevent or to delay the degradation of the product
- to present and promote the product
The multi-layer materials are produced combining the different
properties of each material, in order to optimise cost,
performance and machinability.
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To make the right choice in terms of materials, it is essential to have
a deep understanding of all raw materials involved with the
process (not only the film, but also inks and adhesives), as well as
that of the final product to be packed, knowledge obtainable only
long experience and cooperative partnerships with suppliers and
customers.
Overview n°3, 09/21/07 - page 4/12
The different types of films
The materials normally used for the wrapping of wet wipes and cosmetics
are:
-
Polyester
-
Paper
-
Alu
- Polyethylene
Most of the packaging in common use, are constructed with combinations
of these materialsPolyester: excellent support for printing, thanks to its dimensional
stability when heated, it can be considered as the leading film used in
this sector, thanks to its good barrier properties and its chemical
inertia. Sometimes, it is replaced by co-extruded polypropylene.
Paper: used as printing support, in lamination with other films, it is used
for wet wipes single-dose wrapping, as well as for talcum powder and
soap tablets (in this case with application of hot-melt adhesives).
Aluminium: used in lamination with plastic films, when the success of the
final product is contingent on water vapour and gas resistance.
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Polyethylene: used in lamination for its sealing and water vapour barrier
properties.
Overview n°3, 09/21/07 - page 5/12
WET WIPES
Packaging for the wet wipe sector, is a
significant percentage of Neophane’s sales,
in Italy as well as in other European areas.
This is an expanding sector in, as it has well
identified some of the conveniences
required by the modern life, with more and
more diversified products.
Applications:
- household
- personal care and hygiene
- industrial
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Overview n°3, 09/21/07 - page 6/12
DUPLEX STRUCTURES
These structures are composed of two different layers of films and
are produced in two phases:
1) printing + in-line lamination and
2) slitting
STRATIGRAPHY
µm
PET
g/m²
12
16,80
Inks (coverage 100%) – chemical resistance
1
1,00
Adhesive (high performances and chemical resistance)
2
2,60
60÷70
55,20÷64,40
LDPE SP (also white)
PROPERTIES: wide sealing range with excellent performance (either in
terms of force or hot-tack, as well as in presence of pollutants); high
resistance to chemical attack and good barrier to gas and humidity;
excellent printability (up to 9 colours). For certain personal care lines, the
PET film is substituted by matt BOPP film, giving a soft touch sensation.
PROPERTIES
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METHOD
UNIT
VALUE
TOLLERANCE
ADHESION STRENGTH
ASTM 904-98
N/15mm
> 2,0
≥ 2,0
SEAL STRENGTH
T: 140°C / P: 4bar / t: 0,5sec.
Range: 105÷160°C
ASTM 88-05
N/15mm
> 15,0
≥ 15,0
Dynamic C.O.F. sealing film
ASTM D1894-01
-
< 0,40
≤ 0,40
BARRIER PROPERTIES
WV tr.
O2 tr.
ASTM F1249
ASTM D3985
g/m²/24h
cm³/m²/24h
< 40,0
< 100,0
≤ 40,0
≤ 100,0
Overview n°3, 09/21/07 - page 7/12
DUPLEX STRUCTURES - continued
STRATIGRAPHY
µm
PET
g/m²
12
16,80
Inks (coverage 100%) – chemical resistance
1
1,00
Adhesive (high performances and chemical resistance)
2
2,60
50÷75
47,00÷70,50
PE-
EVOH-PE (also white)
PROPERTIES: with regard to the previous structure, the EVOH
layer guarantees an excellent barrier to gas and improved water
vapour. All the other performance parameters remain largely
unchanged, with only a minimum difference in the sealing range.
PROPERTIES
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METHOD
UNIT
VALUE
TOLLERANCE
ADHESION STRENGTH
ASTM 904-98
N/15mm
> 2,0
≥ 2,0
SEAL STRENGTH
T: 140°C / P: 4bar / t: 0,5sec.
Range: 115÷160°C
ASTM 88-05
N/15mm
> 10,0
≥ 10,0
Dynamic C.O.F. sealing film
ASTM D1894-01
-
< 0,40
≤ 0,40
BARRIER PROPERTIES
WV tr.
O2 tr.
ASTM F1249
ASTM D3985
g/m²/24h
cm³/m²/24h
< 10,0
< 2,0
≤ 10,0
≤ 2,0
Overview n°3, 09/21/07 - page 8/12
TRIPLEX STRUCTURES
These structures are composed by three different layers of films
and are produced in three phases:
1) printing
2) lamination and
3) slitting.
STRATIGRAPHY
µm
g/m²
PET
12
16,80
Inks (coverage 100%) – chemical resistance
1
1,00
Adhesive (high performances and chemical resistance)
2
2,60
12
32,40
2
2,60
50÷75
47,00÷70,50
AL
Adhesive (high performances and chemical resistance)
PE-
EVOH-PE (also white)
PROPERTIES: the aluminium layer, guarantees the best possible
barrier to gas and water vapour, in addition to preserving the product
avoiding aroma loss.
PROPERTIES
METHOD
UNIT
VALUE
TOLLERANCE
ASTM 904-98
ASTM 904-98
N/15mm
N/15mm
> 2,0
> 3,0
≥ 2,0
≥ 3,0
SEAL STRENGTH
T: 140°C / P: 4bar / t: 0,5sec.
Range: 105÷160°C
ASTM 88-05
N/15mm
> 10,0
≥ 10,0
Dynamic C.O.F. sealing film
ASTM D1894-01
-
< 0,40
≤ 0,40
ASTM F1249
ASTM D3985
g/m²/24h
cm³/m²/24h
< 0,5
< 0,5
≤ 0,5
≤ 0,5
ADHESION STRENGTH
PET // AL
AL // PE
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BARRIER PROP. WV tr.
BARRIER PROP. O2 tr.
Overview n°3, 09/21/07 - page 9/12
TRIPLEX STRUCTURES – continued
Valid alternatives to the use of aluminium, more economical and
easier availability, without relinquishing good barrier performance.
The relative performance values are:
metallised PET
PET +Ink + Ad. +
METHOD
UNIT
VALUE
TOLLERANCE
ASTM 904-98
ASTM 904-98
N/15mm
N/15mm
> 1,5
> 2,0
≥ 1,5
≥ 2,0
SEAL STRENGTH
T: 140°C / P: 4bar / t: 0,5sec.
Range: 105÷160°C
ASTM 88-05
N/15mm
> 10,0
≥ 10,0
BARRIER PROP. WV tr.
BARRIER PROP. O2 tr.
ASTM F1249
ASTM D3985
g/m²/24h
cm³/m²/24h
< 1,0
< 1,5
≤ 1,0
≤ 1,5
METHOD
UNIT
VALUE
TOLLERANCE
ASTM 904-98
ASTM 904-98
N/15mm
N/15mm
> 0,8
> 2,0
≥ 0,8
≥ 2,0
SEAL STRENGTH
T: 140°C / P: 4bar / t: 0,5sec.
Range: 105÷160°C
ASTM 88-05
N/15mm
> 10,0
≥ 10,0
BARRIER PROP. WV tr.
BARRIER PROP. O2 tr.
ASTM F1249
ASTM D3985
g/m²/24h
cm³/m²/24h
< 8,0
< 8,0
≤ 8,0
≤ 8,0
MET(↑) PET + Ad. + PE
ADHESION STRENGTH
PET // met PET
PET // PE
or
PVDC PET
PET +Ink + Ad. +
PVDC(↑) PET + Ad. + PE
ADHESION STRENGTH
PET // PVDC PET
PET // PE
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Overview n°3, 09/21/07 - page10/12
SPECIAL STRUCTURES
Structures suitable for wet wipes wrapped in single-dose: this packaging
guarantees excellent barrier and sealing, in addition to easy opening.
STRATIGRAPHY
µm
Inks (coverage 100%) – chemical and scratch resistances
g/m²
2
2,00
45
50,00
Adhesive (high performances and chemical resistance)
2
2,60
AL
8
21,60
Adhesive (high performances and chemical resistance)
2
2,60
35
32,20
PAPAER
LDPE SP
Structures suitable for bar soaps:
STRATIGRAPHY
µm
Inks (coverage 100%) – chemical, alkali, and scratch resistances
WHITE CAVITATED BOTH SIDE TREATED PP
STRATIGRAPHY
2,00
40
25,40
g/m²
12
16,80
Inks (coverage 100%) – chemical and alkali resistances
1
1,00
Adhesive (high performances and chemical resistance)
2
2,60
45
50,00
4
20,00
PAPER
HOT-MELT
STRATIGRAPHY
MAT BOPP
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2
µm
PET
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g/m²
µm
g/m²
20
18,20
Inks (coverage 100%) – chemical and alkali resistances
1
1,00
Adhesive (high performances and chemical resistance)
2
2,60
30
27,00
CAST PP
Overview n°3, 09/21/07 - page11/12
Overview
Next step on October 22nd, 2007
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VACUUM packing and MAP
(modified atmosphere packaging)
also available on our Internet site
www.neophane.it since Oct. 22nd