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Dupont - Tyvek (R) Films
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| Stock Symbol DD
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PO Box 80728
Wilmington, DE (USA) 19880
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| Fax: |
800.203.0013 |
| Toll Free: |
800.448.9835 |
| Company Description |
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Dupont Tyvek (R) $32 Billion sales, utilized sterile packaging medical devices, protective apparel garmets, envelopes, covers barriers for new homes. Tyvek (R) water resistant, breathable, protects bacterial contamination, sterilization compatible. |
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| TYVEKŪ
DuPont TyvekŪ has introduced new
dimensions of protection, security and safety in a wide variety of
industries, including protective apparel, construction, envelopes, medical
packaging and graphics.
Made from very fine, high-density
polyethylene fibers, TyvekŪ brand protective material offers all
the best characteristics of paper, film and fabric in one material. This
unique balance of properties, which cannot be found in any other
material, makes TyvekŪ lightweight yet strong; vapor-permeable, yet
water-, chemical-, puncture-, tear- and abrasion-resistant. TyvekŪ
is also low-linting, smooth and opaque.
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| Flash Spinning and Bonding Process

TyvekŪ is formed by a fully integrated
process using continuous and very fine fibers of 100 percent
high-density polyethylene that are randomly distributed and
nondirectional. These fibers are first flash spun, then laid as a web on
a moving bed before being bonded together by heat and pressure - without
the use of binders, sizers or fillers. By varying both the lay-down
speed and the bonding conditions, DuPont technicians can engineer the
flashspun sheet to meet market needs, such as soft- and hard-structure
TyvekŪ. |
TyvekŪ Soft and Hard Structure
TyvekŪ soft structure is designed
specifically for those textile applications where drape, hand and soft
feel are of prime importance, such as limited-use protective garments.
TyvekŪ hard structure can supplant traditional paper by offering
superior tear resistance and lighter weight. It is ideal for envelopes and
graphics applications.
A variety of finishing techniques,
including embossing, corona treatment (to improve adhesion of printing
inks and coatings), anti-static treatment and softening for drapability,
allow the product to be fine-tuned to the specific needs of end-users.
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Major Markets
- Construction - One of the most popular
and widely known applications of TyvekŪ is in the construction
industry, where it is used to increase air and water resistance,
helping to lower heating and cooling costs in buildings and providing
better protection against water and moisture intrusion. The unique
qualities of TyvekŪ help stop air flow through wall cavities; help
hold out bulk water and wind-driven rain; and allow moisture vapor to
escape from inside walls. The result is a more comfortable,
energy-efficient building with far fewer chances for damage from
degradation effects.
- Medical Packaging - TyvekŪ is used in
virtually every form of sterile medical packaging. That's because
TyvekŪ delivers an optimum balance of bacteria penetration
resistance, tear strength, puncture resistance and clean peel, as well
as compatibility with existing and emerging sterilization methods.
- Protective Apparel - Garments made of
TyvekŪ are either used for hazardous environments or for general,
non-hazardous, industrial use. Examples of uses for hazardous
environments include protection against water-based acids, bases,
salts and splashes of certain liquids, such as pesticides and
herbicides.
- Envelopes - The unique composition of
TyvekŪ results in virtually the strongest envelope available
offering superior protection from punctures, tears and moisture.
Remarkably light, TyvekŪ envelopes can help to save on mailing costs.
- Graphics - Among the first graphic
products manufactured from hard-structure TyvekŪ were outdoor
advertising posters and banners; labels; tags; and schoolbook covers
applications that benefit from its water, abrasion and tear
resistance. Today, many more graphics uses have been found for TyvekŪ,
such as highly durable maps and guidebooks; chemical container labels;
workshop manuals; race numbers for marathon runners; and frozen food
labels.
- Covers - Because TyvekŪ is water
resistant, yet breathable, it is ideal for car, boat and camper
covers. The unique nonwoven structure of TyvekŪ protects against acid
rain and salt spray by holding out more water than cotton, polyester
or cotton/polyester covers; however, because it is breathable, it also
allows trapped moisture to escape, helping to prevent rot and mildew.
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