Version 2a
18/12/2007
ViPrint™ Clear 434 Product Datasheet
Description
VitasheetGroup’s Polyethylene Terephthalate (PET) is a super clear copolymer used extensively for the packaging
industry. It has excellent clarity, coupled with the stiffness similar to Polycarbonate. It also has good gas permeation
properties.
The ViPrint Clear range is designed for printing and boxing applications. It keeps its printing ability for a long period
thanks to the naturally high surface tension of APET. The ViPrint Clear 434 takes the best of PETG and APET. It has the
external characteristics of PETG (Sealability, easy cutting…) thanks to its external PETG layer while its APET core reduce
the global cost of the sheet.
Applications
Boxing, printing, promotion.
Key Features
Certification/Approvals
The following approvals are available (depending on colour)
on request:
Food: European Legislation 2002/72/EC.
Toy: standards EN 71 part 3.
ROHS: European Legislation 2002/95/EC.
Printing
Screen printing and Offset Litho printing.
Conversion
Guillotine cutting : Can be cut on traditionnal printing
guillotine with double-edged blade
Creasing : Cold and hot creasing technique can be used
depending on the thickness.
Welding : Different techniques can be used to weld film to
Viprint (Thermal, Ultrasonic, Hot Gas).
Gluing : Viprint can be glued with PUR glue or hot melt
Physical properties
Properties
Density #
Izod
(Unnotched)
Impact
Strength
Tensile
Strength
Elongation
at Break
Modulus of
Elasticity
Vicat
Softening
Point
Water
Vapour
Transmissio
n Rate
Permeability
CO2
Permeability
O2
#
Product Availability
Colour
Clear.
Finish
Gloss G 33 (Sand finish G 34 is available for 3 T order
minimum).
Thickness
0.3 mm to 0.6 mm.
Sheet Size Specifications
Gauge
0.3 to 0.6 mm
Sheet sizes
Width
Length
680/820 mm
520/1200 mm
Unit
g/cm3
Standard
ISO 1183
Method
-
Value
1.31
kJ/m 2
ISO 180
1U at 23oC
MPa
ISO 527
50 mm/min
25-30
%
ISO 527
50 mm/min
200-250
MPa
ISO 527
50 mm/min
20003000
ISO 306
A120/oil
70-80
ASTM
F372
6
ASTM
D1434
30-49
ASTM
D1434
5-10
o
C
2
g/m /24h
50
3
cm .mm/2
2
4.m .atm
cm 3.mm/2
4.m 2.atm
The density quoted should only be used as a guide. This value can change
depending upon the type and quantity of pigments or additives used.
Additional Information
General Description
PET is a thermoplastic polyester (not to be confused with unsaturated polyesters mainly used for composite structures:
boats, car body parts,....).
o
Polyester resins are extremely sensitive to humidity, and combined with high temperature conditions (> 70 C), the
polymer chains are broken down by hydrolysis.
They are different type available and a brief description of each is given below:
PET (also known as PETP and PETE)
PET can be found in two molecular states:
- Amorphous (transparent with low heat resistance).
- Crystallised (opaque with high heat resistance).
APET
Amorphous PET: Has excellent transparency due to the lack crystallisation. Ideally temperature conditions should be
o
kept below 120 C to prevent crystallisation.
CPET
The foil is sold amorphous but crystallises (due to the presence of a nucleating agent) in the mould while
thermoforming, which can be very difficult to control. The crystallisation gives the product high temperature resistance
and high stiffness.
GPET
This is a copolyester (grafted with a second glycol) that has the advantage of being completely amorphous and never
crystallises.
Chemical Resistance
APET shows a good resistance to aqueous solutions of salts, acids and alkalis. It also has good resistance to most
solvents, alcohols, fats and oils, although very limited resistance to ketones.
Manufacturing Tolerances
The tolerances below should only used as a general guide, as embossing and temperature can have an influence.
SHEET GAUGE
GAUGE
WIDTH
0.3 to .40 mm
±7%
± 1 mm
SHEET LENGTH
LENGTH
Up to 1200 mm
± 5 mm
VitasheetGroup
Charta House
30 - 38 Church Street
Staines
TW18 4EP
www.vitasheetgroup.com
0.41 to 0.6 mm
±4%
± 1 mm