Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > VTT has developed a fully recyclable coating for food & pharmaceuticals

Abstract:
VTT Technical Research Centre of Finland has developed an environmentally-friendly packaging coating solution. Especially suitable for food and pharmaceutical packaging, the coating offers a new method for manufacturing fully recyclable, thin, light and air-tight packaging materials.

VTT has developed a fully recyclable coating for food & pharmaceuticals

Finland | Posted on March 24th, 2010

Developed using the atomic layer deposition (ALD) method, the coating has excellent gas permeation resistance and as such it is particularly suitable for food and pharmaceutical products. The ALD technology, which was developed in Finland in the 1970s, has been utilised mainly in microelectronics to date.

ALD facilitates the manufacture of packaging materials which are thinner, lighter and better sealed than traditional barrier materials. Barrier materials have the ability to prevent molecules from penetrating the packaging, which is important when protecting the product from humidity, drying or oxidation.

The barrier ability can be created without an aluminium film, the traditional barrier material which affects recyclability. For packaging technology, this creates an opportunity to manufacture fully recyclable packages that use fewer raw materials. The amount of aluminium can be reduced 500-1,000-fold compared to current medicine blister packs. The use of aluminium affects the pack's recyclability, and its manufacture requires a lot of energy.

ALD coatings are thin, conformal and pinhole-free and they closely follow the contours of the coated material. Their thickness can be adjusted to the accuracy of one atomic layer. Thanks to the thinness of the film (approx. 25 nanometres), the protective layer is bendable and flexible. Thin bio-based packaging materials produced using this technology have gas permeability properties similar to those of existing dry food packages and pharmaceutical blister packs.

By using ALD coating, different functions can be integrated in the packaging material, such as properties which prevent water, oxygen, humidity, fats and aromas from permeating the packaging and protect the surface from stains and bacterial growth.

ALD thus provides savings on raw material and transport costs, as the amount of packaging material can be reduced. For example, chocolate wrappers can now be made without the aluminium-coated paper, if the carton wrap is treated with the ALD coating method.

Other thin film methods can also produce thin coatings; however, their gas permeability is higher and the material is stiffer and breaks easily. With these competing methods, comparable gas permeation resistance is possible only if thicker films are used.

The ALD technology can improve the humidity tolerance and performance of bio-polymers, reducing the need for oil-based plastics.

Developed in Finland in the 1970s, the ALD (Atomic Layer Deposition) reactor is a device for the chemical composition of thin films. It can produce a film with the accuracy of one atomic layer. The basic materials of aluminium oxide coating are usually trimethyl aluminium and water. To date, the method has been used as a part of the manufacturing process of technical products in semiconductor industry.

####

About VTT Technical Research Centre
VTT Technical Research Centre of Finland is the biggest multitechnological applied research organisation in Northern Europe. VTT provides high-end technology solutions and innovation services.

From its wide knowledge base, VTT can combine different technologies, create new innovations and a substantial range of world class technologies and applied research services thus improving its clients' competitiveness and competence.

Through its international scientific and technology network, VTT can produce information, upgrade technology knowledge, create business intelligence and value added to its stakeholders.

For more information, please click here

Contacts:
Tel: +358 20 722 111
Fax: +358 20 722 7001


Ali Harlin
Professor
+358 20 722 6386

Terhi Hirvikorpi
Research Scientist
+358 20 722 7555

Copyright © VTT Technical Research Centre

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Detecting small metallic contaminants in food via magnetization: A practical metallic-contaminant detecting system using three high-Tc RF superconducting quantum interference devices (SQUIDs) July 29th, 2015

Controlling phase changes in solids: Controlling phase changes in solids July 29th, 2015

Short wavelength plasmons observed in nanotubes: Berkeley Lab researchers create Ludinger liquid plasmons in metallic SWNTs July 28th, 2015

'Seeing' molecular interactions could give boost to organic electronics July 28th, 2015

Thin films

Iranian Scientists Create Best Conditions for Synthesis of Gold Nanolayers July 23rd, 2015

ORNL researchers make scalable arrays of 'building blocks' for ultrathin electronics July 22nd, 2015

Industrial Nanotech, Inc. Introduces Ultra Thin High Performance Thermal Insulation Film for Cooling Personal Electronic Devices July 21st, 2015

Imec Makes Steady Progress on Perovskite Photovoltaic Module reaching a Record 11 Percent Conversion Efficiency July 16th, 2015

Products

Aculon Launches NanoProof Series for PCB Waterproofing July 20th, 2015

Philips Introduces Quantum Dot TV with Color IQ™ Technology from QD Vision: Manufacturer is first to offer quantum dot displays for both TVs and monitors June 30th, 2015

Dais Analytic Unveils New Version of Aqualyte Membrane Technology: Updates to the Basis of the Company's Industry-Changing Nanotechnology Designed to Strengthen Position in Global Air, Energy, and Water Markets June 26th, 2015

Industrial Nanotech, Inc. Announces Launch of Heat Shield(TM) EPX4 Thermal Insulation and Chemical Resistant Coating June 12th, 2015

Academic/Education

Deben reports on the use of their CT500 in the X-ray microtomography laboratory at La Trobe University, Melbourne, Australia July 22nd, 2015

JPK reports on the use of SPM in the Messersmith Group at UC Berkeley looking at biologically inspired polymer adhesives. July 21st, 2015

Renishaw adds Raman analysis to Scanning Electron Microscopy at the University of Sydney, Australia July 9th, 2015

Oxford Instruments’ TritonXL Cryofree dilution refrigerator selected for the Oxford NQIT Quantum Technology Hub project June 30th, 2015

Announcements

Detecting small metallic contaminants in food via magnetization: A practical metallic-contaminant detecting system using three high-Tc RF superconducting quantum interference devices (SQUIDs) July 29th, 2015

Controlling phase changes in solids: Controlling phase changes in solids July 29th, 2015

Short wavelength plasmons observed in nanotubes: Berkeley Lab researchers create Ludinger liquid plasmons in metallic SWNTs July 28th, 2015

'Seeing' molecular interactions could give boost to organic electronics July 28th, 2015

Food/Agriculture/Supplements

Detecting small metallic contaminants in food via magnetization: A practical metallic-contaminant detecting system using three high-Tc RF superconducting quantum interference devices (SQUIDs) July 29th, 2015

QuantumSphere Completes State-of-the-Art Nanocatalyst Production Facility: Now Positioned to Capitalize on Commercial Validation and JDA with Casale, SA July 25th, 2015

3D-printed 'smart cap' uses electronics to sense spoiled food July 20th, 2015

Environmentally friendly lignin nanoparticle 'greens' silver nanobullet to battle bacteria July 13th, 2015

Environment

Laboratorial Performance of Nanocomposite Membrane Improved in Water Purification July 28th, 2015

Nanosorbents Reduce Amount of Heavy Metals in Petrochemical Wastewater July 23rd, 2015

Nanopaper as an optical sensing platform July 23rd, 2015

Iranian Scientists Use Gas Sensor to Detect Hydrogen July 14th, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project