Spray bottle

A spray bottle is a bottle that can squirt, spray or mist fluids. A common use for spray bottles is dispensing cool cleaners, cosmetics, and chemical specialties.

History

While spray bottles existed before the middle of the 20th century, they used a rubber bulb, which was squeezed; the quickly-moving air siphoned fluid from the bottle. The rapid improvement in plastics after World War II increased the range of fluids that could be dispensed, and reduced the cost of the sprayers because assembly could be fully automated.

The first major commercial plastic spray bottle was developed in 1947 when Dr. Jules Montenier, working with engineers from the Plax Corporation, invented a commercial use for the plastic bottle. His innovation was for “Stopette”, an underarm deodorant dispensed by squeezing the bottle. This one bottle created an explosion in the industry for the plastic bottle. "Stopette" and its patented container [ See US Patent No. 2,642,313 "Unitary container and atomizer for liquids http://www.freepatentsonline.com/REF2642313.html] became part of the national consciousness when "Stopette" became the primary sponsor of the popular gameshow "What's My Line?". For the first time, plastic was competing with glass for this type of packaging. [ [http://www.continentalpackagingsolutions.com/index.php?pageID=40 Continental Packaging Solutions ] ] ["American Plastic: A Cultural History", Jeffrey L. Meikle, 1995.]

The Drackett company, manufacturers of Windex glass cleaner, was a leader in promoting spray bottles. Roger Drackett raised soybeans, converted the soybeans to plastic using technology purchased from Henry Ford, and was an investor in the Seaquist company, an early manufacture of sprayers and closures. Initially, the brittle nature of early plastics required that sprayers be packaged in a cardboard box, and the sprayer inserted in the glass Windex bottle by the consumer. The cost of sprayers was also a factor; consumers would reuse the sprayers with bottle after bottle of glass cleaner. As plastics improved, and the cost of sprayers dropped, manufacturers were able to ship product with the sprayer already in the bottle.

In the late 1960s, spray bottles with trigger-style actuators appeared and quickly became popular, as it was less fatiguing to use. The original pump-style bottle remained more popular for applications like non-aerosol deodorants, where size was a factor, and repeated pumps were not required.

Modern spray bottles

Unlike the rubber bulb dispenser which primarily moved air with a small amount of fluid, modern spray bottles use a positive displacement pump that acts directly on the fluid. The pump draws liquid up a siphon tube from the bottom of the bottle, and the liquid is forced out a nozzle. Depending on the sprayer, the nozzle may or may not be adjustable, so as to select between squirting a stream, aerosolizing a mist, or dispensing a spray.

The dispensing is powered by the user's efforts in a spray bottle, as opposed to the spray can, in which the user simply actuates a valve, and product is dispensed under pressure, using a liquid that gasifies at room temperature and pressure such as propane/isobutane blends or Freon, or pressured gasses such as nitrous oxide or ordinary air.

See also

*Water gun
*Pesticide application

References

External links

* [http://science.howstuffworks.com/question673.htm How stuff works]