water

New printer uses water instead of ink

Saturday, February 22, 2014 by: J. D. Heyes
Tags: water-jet printer, ink, rewritable paper

eTrust Pro Certified

Most Viewed Articles
Popular on Facebook
CDC issues flu vaccine apology: this year's vaccine doesn't work!
Biologist explains how marijuana causes tumor cells to commit suicide
Depopulation test run? 75% of children who received vaccines in Mexican town now dead or hospitalized
BAM! Chipotle goes 100% non-GMO; flatly rejecting the biotech industry and its toxic food ingredients
Companies begin planting microchips under employees' skin
U2's Bono partners with Monsanto to destroy African agriculture with GMOs
NJ cops bust teenagers shoveling snow without a permit
Russia throws down the gauntlet: energy supply to Europe cut off; petrodollar abandoned as currency war escalates
McDonald's in global profit free fall as people everywhere increasingly reject chemically-altered toxic fast food
Chemotherapy kills cancer patients faster than no treatment at all
Why flu shots are the greatest medical fraud in history
600 strains of an aerosolized thought control vaccine already tested on humans; deployed via air, food and water
Italian court rules mercury and aluminum in vaccines cause autism: US media continues total blackout of medical truth
Flu vaccine kills 13 in Italy; death toll rises
The 21 curious questions we're never allowed to ask about vaccines
Vicious attack on Dr. Oz actually waged by biotech mafia; plot to destroy Oz launched after episode on glyphosate toxicity went viral
Orthorexia Nervosa - New mental disorder aimed at people who insist on eating a clean diet
Whooping cough outbreak at Massachusetts high school affected only vaccinated students

Delicious
(NaturalNews) Soon, if Chinese researchers are successful, the world's printers won't use environmentally unfriendly ink - they will use water.

Many people find it much more difficult to read from a brightly lit computer screen. For them, there is nothing like the feel of paper in hand. Plus, printing stories, reports or other items allows you the freedom to move away from your brightly lit screen and take your printed copy with you or relax somewhere while reading.

But that presents a dilemma, especially if you're environmentally savvy and in tune. Up to 40 percent of office documents are printed merely for one-time use, which means that a lot of resources - paper and expensive ink - can be wasted or, at best, used very inefficiently. That makes this an area ripe for change.

According to the tech site Gizmodo, there is a solution on the horizon:

Chinese researchers say they may have come up with just the thing to ease the conscience and lower the cost of reading documents on paper. They've created a jet printer that uses water instead of ink and a complimentary reusable paper that changes color while it's moist.

"We all know we are facing many problems. Three major problems are the energy crisis, global warming and ecological and environmental deterioration," said Sean Zhang, a Jilin University chemistry professor and coauthor of a study on the innovation, which was published in the journal Nature Communications in late January. "All of these three problems are caused by one main factor: deforestation. Excess paper consumption contributes greatly to deforestation."

Water activates rewritable paper

The U.S. Environmental Protection Agency says Americans generated some 70 million tons of paper and paperboard refuse in 2011. Total world consumption of paper amounted to about 400 million metric tons in 2012, estimates the Swedish Forest Industries Federation.

But now, Zhang maintains that he and his team are devising a way to dramatically reduce that amount of consumption using water-jet rewritable paper, which can be printed upon and then erased a number of times.

The researchers say the paper is made with dyes that are invisible when dry but reveal colors when wet. Water, therefore, serves as the primary activator for the dye, opening previously closed and colorless molecules when water triggers coloration.

Testing has shown that each sheet of the special paper can be reused as many as 50 times. The researchers used a standard desktop printer whose ink cartridge they had filled with plain water.

The technology was also demonstrated using a water-filled pen; it temporarily recorded handwriting in the same manner using the same colorization principle.

"So far, we've already achieved four different colors and the prints can last for 22 hours," Zhang says. "The quality of the water-jet printing is comparable with ink-jet printing."

'We also solve the problem of paper waste'

In their research paper, the team said they hope to make improvements to what has already been accomplished.

"The legibility and resolution of our current water-jet prints seem good enough for general reading purpose, and we are confident to improve further the colour intensity and evenness of our rewritable media," they wrote.

Because the paper is reusable, and water is much cheaper than ink, the research team said that water-jet printers should only carry about 1 percent of the cost per page of traditional ink-jet printers.

Also, the researchers have run toxicity tests and have found that the water-reactive dyes do not pose safety risks, though extended exposure testing using mice is currently underway.

"Even though we are in the electronics stage... people prefer hard-copy reading," Zhang said, according to Gizmodo. With the water-based printing system, "we are not only saving a lot of money, we also solve the problem of paper waste."

Sources:

http://www.gizmodo.com.au

http://www.geekosystem.com

http://www.scmp.com

Join over four million monthly readers. Your privacy is protected. Unsubscribe at any time.
comments powered by Disqus
Take Action: Support NaturalNews.com by linking back to this article from your website

Permalink to this article:

Embed article link: (copy HTML code below):

Reprinting this article:
Non-commercial use OK, cite NaturalNews.com with clickable link.

Follow Natural News on Facebook, Twitter, Google Plus, and Pinterest

Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...

GET SHOW DETAILS
+ a FREE GIFT

Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.