Toyota: Static electricity for less polluting paints

Toyota just announced that it has developed a new type of car painting equipment. According to the manufacturer, the new technology used could reduce CO2 emissions.

New Toyota car painting process

Your carbon footprint spans so many areas of daily life that certain areas are easily overlooked. When it comes to automobiles, you might think of tailpipe emissions, vehicle production, and even tire wear emissions, but that’s really just the tip of the iceberg.

If the step that corresponds to painting vehicles seems simple enough… the process also produces CO2.

To counteract this, Toyota has developed a new way to reduce the impact on the process through a new airless paint sprayer.

Static electricity replaces air

As part of the newly introduced mechanism, static electricity replaces air. Deportation to closets, to scrap, even to recreation…. ! conventional air atomizers used for painting car bodies.

“This airless sprayer is the first of its kind in the world and has an application efficiency of over 95% (ie the amount of paint adhered to the body in relation to the amount sprayed). So this is an absolute record, the usual yield is around 60 to 70%,” states the group.

Very good news for the planet: this innovation from the Toyota group should make it possible to reduce CO2 emissions by around 7%.

More effective recovery

A standard air paint sprayer uses aerodynamic force to force paint onto the vehicle body. The result is scattered paint particles that bounce off the surface and through the air. With the Airless system, Toyota has developed a way to use static electricity to move paint from the nozzle onto the vehicle’s surface.

When the paint flows through static electricity, it becomes charged in such a way that the particles are moved toward the vehicle body. This greatly reduces airborne paint particles. At the same time, the paint covers the body better.

Small production lines

This new technique could reduce the size of the recovery device located at the bottom of the paint booth (the spray cabinet). Therefore, painting lines can be more compact in the future.

The airless painting system is currently in use at the company’s plants in Takaoka and Tsutsumi, Japan.

Car painting: a very polluting context

The solvents contained in a large number of products, such as e.g. B. in body products, cause ozone pollution, are involved in the greenhouse effect and can damage the health of users. The European Directive 99/13/EG of March 11, 1999 was created to limit emissions of solvents and the VOCs (Volatile Organic Compounds) they contain. It concerns the reduction of emissions of organic compounds due to the use of volatile organic solvents in certain activities and installations.
These are the following products: Preparation and cleaning agents; sealants; prints and finishes; Topcoats and specialty products.

Our opinion, from

Even if this innovation will not revolutionize the world, it goes in the right direction: protecting the planet… and people’s lungs… badly abused in these times of coronavirus… And it’s finally good news in the World of automobiles…. who really needs that!

Source: Toyota, Cnet

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