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PACKAGING NEWS
Cor-Pak®
VCI Antistatic Stretch Film
Antistatic
materials are of special importance in packaging. Poor electrical
conductivity of plastics causes a lot of problems during production,
handling and use. The insulative property of plastic materials means
that friction or separating two plastic sheets may lead to the creation
of a charge. Dust and dirt may settle between the stretch film layers.
This may lower cling properties. Cortec's new Cor-Pak®
VCI Antistatic Stretch Film meets the requirements for antistatic
film under MIL-B-81705C, Type II, and has a surface resistivity
of 109-1011 ohms/sq and a static decay of <2 seconds. The biggest
advantage of Cor-Pak®
VCI Antistat Stretch Film is the combination of antistatic and VCI
properties, providing long-lasting multimetal protection. Cor-Pak®
VCI Cushion This new product was developed specially for packaging
of sensitive electronics parts, such as circuit boards, motherboards,
etc. Cor-Pak®
VCI Foam combines:
- Protection
from corrosion damage
- Protection
from physical damage (cushioning)
- ESD protection
Construction
of the VCI foam is quite simple: Cortec's VCI-126 or VCI-125 film
is laminated to closed-cell polyethylene foam (1/18" or 1/16" thickness).
No adhesive is needed for lamination. Additional benefits include:
- Durability
and reusability
- Heat-sealability
- Non-abrasiveness
- Water resistivity
- Resistance
to most solvents and chemicals
Military Packaging
- MilCorr
A recent military document provides a more detailed definition of
packaging: "The processes and procedures used to protect material
from deterioration and damage. It includes cleaning, drying, preserving,
packaging, marking and unitization." Now, let's have a quick
quiz. To preserve, let's say a military vehicle, what properties
of the packaging material are desired? Let's name the most important:
ultra strength, corrosion protection, UV protection, flame retardancy,
superior shrink characteristics, . . . How many products do we need
to obtain all three requirements immediately? The answers are numerous
if you don't ask Cortec Corporation to help answer your problem.
We can solve this task with just one product - MilCorr Shrink Film.
This new composite film has everything you need - ultimate strength
characteristics, powerful multimetal VCI, ultraviolet and a flame
retardant package. MilCorr was specifically designed to meet the
most stringent military requirements. Of course, you can use it
for "civil" applications, such as mothball preservation
of industrial equipment, export packaging, heavy equipment, recreational
vehicles (boats, snowmobiles), etc. This new tan film is available
in sheeting and tubing with a thickness from 10 to 12 mils (250-300
microns).
Cor-Pak®
Cocooning Stretch Film
A new low cost
procedure to wrap metal coils in a rolling position with bore/eye
horizontal is now operational. The process utilizes a semi-automatic
stretch wrapper and Cortec's unique Cor-Pak®
Cocooning Stretch Film, specifically designed for applications requiring
a strong yet soft film. It is now possible to cocoon-wrap coils
fast and efficiently with packaging that conforms to the metal product.
To properly protect eye horizontal coils against corrosion and handling
damage, several packaging components are required. And ID insert
to protect the bore/eye, ID edge protector to prevent handling damage
when lifting, sidewall protection to avoid damage from C-hook or
equivalent when moving coils, and OD protector to prevent edge cuts
during wrapping and stacking of coils. However, the manual placement
of these necessary components negated goals for reduced labor and
investment costs. Cortec developed corrosion protection with each
of these required components. VCI-350 A and B contained for fiberboard
and corrugated, VCI-357 saturation coating for laminated edge protection,
VCI-126 films for ID tubes and edge wraps, EcoWeave®
where strength is required, and even VCI plastic corrugated for
converting as warranted.
Cocoon Wrap
Method
Most manufacturers
of stretch wrap equipment offer various size and speed units in
their semi-automatic line to cocoon wrap coils. They can either
furnish blocker rollers used to roll the coil during wrapping or
install over an existing blocker roll system. These wrappers are
available with an articulating wrapper arm to move in and out for
coil placement and removal. Cost for the wrapper only with 12-18
rpm would approximate $20,000 US and compatible blocker rolls would
be about $15,000 US installed, depending upon desired accessories.
These relatively low costs for mill equipment are what make this
packaging method available universally. Cortec's high-performance
Cor-Pak®
Cocooning Stretch Film is designed for maximum strength and holding
force with superior corrosion protection. For the Cocoon Wrap method,
trials found that other characteristics were required leading to
the developed of the unique Cor-Pak®
Cocooning Stretch Film. This innovative film maintains the same
advantages as regular Cortec stretch film. It also conforms exceptionally
well to the curvature of the coil and adheres to prevent slippage
and zippering of the film.
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