The airbrush is a small, highly precise spray gun for applying paint. It was invented in 1879 by Abner Peeler, in Iowa, USA. This first airbrush used a hand-operated compressor, and the inventor patented it "for the painting of watercolors and other artistic purposes". However this first device was rather crude, being based on a number of spare parts in a jeweller's workshop such as old screwdrivers and welding torches. It took 4 years of further development before a practical device was developed. This was marketed by Liberty Walkup, who taught airbrush technique to American Impressionist master Wilson Irvine. The first modern type airbrush came along in 1893, presented by Thayer and Chandler art materials company at the World Columbian Exposition in Chicago, invented by Charles Burdick. This device looked like a pen and worked in a different manner to Peeler's device, being essentially the same as a modern airbrush. The most highly refined airbrushes today are manufactured in Japan, one of the most popular brands is Iwata. Aerograph, Burdick's original company, still makes and sells airbrushes in England.

For more a detailed academic study, the University of Wales Library holds a detailed PhD on Airbrush History. Likewise the Franklin Institute in Philadelphia retains a copy - authored by Dr. Andy Penaluna.

An airbrush works by passing a stream of fast moving (compressed) air through a venturi, which creates a local reduction in air pressure (suction) that allows paint to be pulled up from an interconnected reservoir at normal atmospheric pressure. The high velocity of the air atomizes the paint into very tiny droplets as it blows past a very fine paint-metering component. The paint is carried onto paper or other surface. The operator controls the amount of paint using a variable trigger which opens more or less a very fine tapered needle that is the control element of the paint-metering component. An extremely fine degree of atomization is what allows an artist to create such smooth blending effects using the airbrush.

The technique allows for the blending of two or more colors in a seamless way, with one color slowly becoming another color. Freehand airbrushed images, without the aid of stencils or friskets, have a floating quality, with softly defined edges between colors, and between foreground and background colors. A well skilled airbrush artist can produce paintings of photographic realism or can simulate almost any painting medium. Painting at this skill level involves supplementary tools, such as masks and friskets, and very careful planning.

Technique

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Airbrush Technique is the freehand manipulation of the airbrush, medium, air pressure and distance from the surface being sprayed in order to produce a certain predictable result on a consistent basis with or without shields or stencils. Airbrush technique will differ depending upon the type of airbrush being used, single action or double action.

Double action airbrush technique involves depressing the trigger on the top of the airbrush with the index finger to release air only, and drawing it back gradually to the paint release threshold. The most important procedural dynamic is to always begin with air only and end with air only. By observing this rule, precise control of paint volume and line width and character can be achieved. The single most important airbrush stroke consistently utilized by professionals is the dagger stroke.

Single action airbrush technique derives its name from the fact that only 1 action is required for operation. The single action of depressing the trigger releases a fixed ratio of paint to air. Achieving different line widths requires either changing the tip and nozzle combination or else adjusting the spray volume manually between spray width changes. The most important aspect of proper single action airbrush technique is to keep the hand moving before the trigger is depressed and after the trigger is released. This avoids the "bar bell" line.

Airbrushing for photo retouching

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Airbrushing has long been used to alter photographs in the pre-digital era. In skilled hands it can be used to help hide signs that an image has been extensively retouched or "doctored".

As a result of Stalin's purges, and later destalinization, many photographs of officials from the periods show extensive airbrushing, often entire people have been removed. The term "airbrushed out" has come to mean rewriting history to pretend that something was never there.

The term "airbrushed" or "airbrushed photo" has also been used to describe glamour photos in which a model's imperfections have been removed, or in which their attributes have been enhanced. The term has often been applied in a pejorative manner to describe images of unrealistic female perfection and has been particularly common in reference to pictures in Playboy magazine.

Using today's digital imaging technology, this kind of picture editing is now usually done with a raster image editor, which is capable of even more subtle work in the hands of a skilled touch-up artist. This technique is called photoshopping. (Also see photo manipulation.)

Spray guns

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The airbrush led to the development of the spray gun, a larger, more industrial type of paint applicator used for larger areas. Airbrushing itself started being used on cars in the 1940s to make hot rods, specialty cars and then spread to the general car repainting industry.

Many street artists use airbrushing to create names and pictures for tourists, such as around Jackson Square in New Orleans. In the mid-seventies, Panama City Beach, Florida was the airbrush capital of the world, with hundreds of artists painting custom T-shirts.

Painting techniques | Photographic techniques | Art materials

Spritzpistole | Aerografo | エアブラシ | Aerograf | Airbrush

Airbrush