Featured Research

from universities, journals, and other organizations

Packaging Where Nothing Sticks

Date:
September 17, 2007
Source:
Fraunhofer-Gesellschaft
Summary:
Shaking and tapping is often the only way to get the last drop of ketchup out of the bottle. But in future, even this final drop will slide out easily onto the barbecued steak -- thanks to a special coating on the packaging. We all know the problem with ketchup or mayonnaise: No matter how we shake or tap the bottle, some of the content refuses to come out. In some cases, up to 20 percent is left in the packaging when it is dumped in the trash can. This is not only annoying for consumers, but also poses difficulties when recycling.

A new type of packaging -- pictured is a bottle of ketchup -- will reduce the left-over traces by at least half. On the left is a conventional bottle, on the right a coated one.
Credit: Copyright Fraunhofer IVV

Shaking and tapping is often the only way to get the last drop of ketchup out of the bottle. But in future, even this final drop will slide out easily onto the barbecued steak – thanks to a special coating on the packaging.

We all know the problem with ketchup or mayonnaise: No matter how we shake or tap the bottle, some of the content refuses to come out. In some cases, up to 20 percent is left in the packaging when it is dumped in the trash can. This is not only annoying for consumers, but also poses difficulties when recycling: The leftovers first have to be removed from the packaging, which is expensive, time-consuming, and uses a great deal of water. If the products in question are pharmaceuticals, chemicals or pesticides, the rinsed-out leftovers also have to be disposed of in a suitable manner.

A joint project by the Fraunhofer Institutes for Process Engineering and Packaging IVV in Freising and for Interfacial Engineering and Biotechnology IGB in Stuttgart, together with Munich University of Technology and various industrial partners, sponsored by the BMBF, will put an end to this dilemma. “We are developing packaging materials that reduce left-over traces to half or less,” says Dr. Cornelia Stramm, head of the Functional Films business field at the IVV.

The researchers apply thin films, no more than 20 nanometers thick, to the inside surface of the packaging. “We make the coatings from a plasma of the type already familiar from neon lamps,” explains IGB scientist Dr. Michaela Müller. “It is done by placing the plastics into a vacuum. We introduce gases into this vacuum chamber and ignite them by applying a voltage. We can deposit different coatings with defined properties on the surface of the packaging, depending on the proportions of electrons, ions, neutrons and photons in this luminous gas mixture.” The first samples of this new packaging already exist: They will be presented to the public for the first time at K2007, the international trade fair for plastics and rubber, to be held in Düsseldorf on October 24 through 31 (Stand E91, Hall 3).

The research scientists at the IGB are now working to optimize the coatings applied – improving properties such as adhesive strength. “The coatings must not change the properties of the materials. They must remain capable of being industrially processed to form bottles, tubes, or stand-up pouches of the kind typically used for liquid soap,” insists Müller. Her fellow scientists at the IVV are taking a closer look at the coatings produced: How resistant are they to mechanical stress? How do they react to temperature fluctuations, or to contact with acids and alkalis?

In about two to three years, Stramm hopes, the bottles could be freely yielding their last drop of ketchup to consumers.


Story Source:

The above story is based on materials provided by Fraunhofer-Gesellschaft. Note: Materials may be edited for content and length.


Cite This Page:

Fraunhofer-Gesellschaft. "Packaging Where Nothing Sticks." ScienceDaily. ScienceDaily, 17 September 2007. <www.sciencedaily.com/releases/2007/09/070909213942.htm>.
Fraunhofer-Gesellschaft. (2007, September 17). Packaging Where Nothing Sticks. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2007/09/070909213942.htm
Fraunhofer-Gesellschaft. "Packaging Where Nothing Sticks." ScienceDaily. www.sciencedaily.com/releases/2007/09/070909213942.htm (accessed August 1, 2014).

Share This




More Matter & Energy News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) — British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
7 Ways to Use Toothpaste: Howdini Hacks

7 Ways to Use Toothpaste: Howdini Hacks

Howdini (July 30, 2014) — Fresh breath and clean teeth are great, but have you ever thought, "my toothpaste could be doing more". Well, it can! Lots of things! Howdini has 7 new uses for this household staple. Video provided by Howdini
Powered by NewsLook.com
Amid Drought, UCLA Sees Only Water

Amid Drought, UCLA Sees Only Water

AP (July 30, 2014) — A ruptured 93-year-old water main left the UCLA campus awash in 8 million gallons of water in the middle of California's worst drought in decades. (July 30) Video provided by AP
Powered by NewsLook.com
Smartphone Powered Paper Plane Debuts at Airshow

Smartphone Powered Paper Plane Debuts at Airshow

AP (July 30, 2014) — Smartphone powered paper airplane that was popular on crowdfunding website KickStarter makes its debut at Wisconsin airshow (July 30) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins