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In the late 1960s, spray bottles with trigger-style actuators appeared and quickly became popular, as this design 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.
Spray nozzles can have one or more outlets; a multiple outlet nozzle is known as a compound nozzle. Multiple outlets on nozzles are present on spray balls, which have been used in the brewing industry for many years for cleaning casks and kegs. [2] Spray nozzles range from those for heavy duty industrial uses to light duty spray cans or spray ...
Marjorie Joyner (née Stewart; October 24, 1896 – December 27, 1994) was an American businesswoman, hair care entrepreneur, philanthropist, educator, and activist.Joyner is noted for being the first African-American woman to create and patent a permanent hair-wave machine. [2]
Aerosol spray is a type of dispensing system which creates an aerosol mist of liquid particles. It comprises a can or bottle that contains a payload, and a propellant under pressure. When the container's valve is opened, the payload is forced out of a small opening and emerges as an aerosol or mist. Aerosol spray can
In the 1980s, a renewed trend for big hair, and the rise of glam rock and hair metal bands like Mötley Crüe and Cinderella resulted in the widespread use of hair spray in mainstream and alternative culture alike. [16] [17] [18] Aqua Net became synonymous with these trends during that decade. [19] [20] In the 1980s, Aqua Net was advertised by ...
Spray nozzle manufacturers all tabulate capacity based on water. Since the specific gravity of a liquid affects its flow rate, the values must be adjusted using the equation below, where Qw is the water capacity and Spg is the specific gravity of the fluid used resulting the volumetric flow rate of the fluid used Qf.
Intense pulsed light (IPL) is a technology used by cosmetic and medical practitioners to perform various skin treatments for aesthetic and therapeutic purposes, including hair removal, photorejuvenation (e.g. the treatment of skin pigmentation, sun damage, and thread veins) as well as to alleviate dermatologic diseases such as acne.
The suction carries the cut hair particles into the vacuum. The cutting head is lifted and placed over another section of hair, continuing around the head until all the hair is cut. Different spacers may be used to cut varying lengths, such as shorter hair at the nape of the neck and longer hair on the top of the head. [5]