 |
PICVD Coating Technology
Manufacturing News Center
Abstract-- Plastic containers with a gas barrier and chemical resistance.
(sidebar: The PICVD applied silicon dioxide layer on the
inside of a PET bottle prevents the ingress of oxygen and the egress
of carbon dioxide that would affect the taste of the product.)
Because of their manifest benefits as packaging materials, many manufacturers
have converted from glass and metal packaging to plastics. Plastics do
not, however, have the barrier to gases or the chemical resistance of
glass. As a result, there has been a continuous search for ways to improve
the barrier properties of plastics to accommodate more and more sensitive
products or to increase the shelf life of products already packed in plastic
containers. Product areas that require a better barrier include carbonated
beverages (soft drinks and beer), fruit juice, cosmetics, chemicals and
pharmaceuticals. There is a desire, for example, to pack many more products
in PET because of its transparency and brilliance - similar to glass,
but lighter to handle and unbreakable. PET does not, however, have the
barrier to oxygen and carbon dioxide demanded by many products. A 50-nm
internal coating of silicon dioxide applied by the PICVD process can provide
this necessary oxygen barrier to protect the contents and increase the
shelf life of the products.
|
The PICVD applied silicon dioxide layer
on the inside of a PET bottle prevents the ingress of oxygen and the
egress of carbon dioxide that would affect the taste of the product.
|
Due to the numbers involved and the economics, it is not possible to
ship PET containers around the country for coating. The
coating process has to be applied in or at least close to the blow
molding plant. SCHOTT HiCotec already has experience in the design and
construction of PICVD plants and the integration of these plants into
commercial production. In order to meet the requirements for the coating
of PET bottles, SCHOTT HiCottec has concluded an exclusive joint development
in the food and beverage area with SIG
Corpoplast, a leading manufacturer of high-volume two-stage machinery
for the blow molding of PET containers. The result is a barrier coating
machine that reflects the complementary expertises of both companies.
The first machine, which can coat 10,000 PET containers per hour, will
be delivered to the lead customer in the spring of 2003. In the process,
the internal surface of the bottle is coated, which has many benefits.
A better barrier on PET containers is an essential for further growth
in the industry and the transparent PICVD coating meets all the requirements
without detracting from one of the essential properties of PET - its clarity.
In addition, the silicon dioxide is non-toxic and does not affect the
recyclability of the PET.
The PICVD (Plasma Impulse Chemical Vapor Deposition) coating significantly
reduces the penetration of oxygen or the loss of carbon dioxide through
plastic packages and thus permits
a significant increase in the shelf life of the contents.
About Schott HiCotec:
SCHOTT HiCotec designs and builds complete coating plants that can be
integrated into the production lines of its customers.
SCHOTT HiCotec, a division of SCHOTT Spezialglas GmbH is a specialist
company in the field of coatings initially developed for glass. More recently
this same coating technology has been successfully applied to enhance
the properties of a number of commercially important plastic materials.
The company's program includes the complete development of the required
technology - from first sample to industrial-scale production, as well
as the design and construction of coating machines.
Schott
Brochure "Barriercoating" pdf.file
SCHOTT GLAS
Hattenbergstr. 10
55122 Mainz
Germany
+49 (0)6131/66-0 +49 (0)6131/66-2000
E-Mail: info@schott.com
SCHOTT HiCotec
A Business Segment of SCHOTT Spezialglas GmbH
Hattenbergstrasse 10
55122 Mainz
Germany
Tel.: +49 (0)6131/66-46454 Fax.: +49 (0)6131/66-46491
E-Mail: info.hicotec@schott.com
WE WANT YOUR FEEDBACK.
Did you find this material interesting?
Do you want more information of this type?
Comment via FEEDBACK
What related topics would you like to see covered?
What additional information on this topic would you find useful?
Source: SCHOTT HiCotec
Copyright - Unless otherwise stated all contents of this web site are
© 1998/2004- JOBWERX.COM. - All Rights Reserved. For permission to reproduce
any contents of this web site, please advise our Syndication department:
Log onto HELP
Discover
the Great Deals
from top brand name manufacturers. Click Here for deals
Jobwerx
makes no representation as to the accuracy of information transmitted
herein.
coating for PET bottles, Barrier Coating Technology,
PET Packaging, Drinks Packaging, plastic materials, PET containers, barrier
coating machine, coating of PET bottles, packaging materials, blow molding
plant, recyclability of the PET, recycling PET
|
|
|
