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Brush

Tool with bristles used for cleaning, grooming, or applying liquid coatings

  • 6 min read
  • 4 chapters
  • 2 labs on Lably
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Etan J. Tal · CC BY-SA 3.0

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Lab · Class 6–12Painting & WatercolourLab · Class 12Semiconductors & Diodes

History

Brush manufacturing extends back to the Egyptians around 3500 BC, with rudimentary paint brushes made from split palm leaves and animal hair. These brushes were made by hand, where dry leaves and fibers would be tied to tree branches that served as the handle. The applications were for pottery decoration and tomb wall painting. In parallel, China also began the development of its own brushes around the same time. Most of the applications for brushes were for decorating, and the first writing brushes represent a variation in manufacturing. With over 120 processes, from selecting materials to finished products, to choose from, this expanded the capabilities of what a manufactured brush could do. The Huzhou ink brush reflects the culmination of the early brush manufacturing era as an established pioneer of writing tools.

During the renaissance, brushes became extremely specialized, and the round brush dominated this era. This is partly thanks to the documentation done at the time in Il libro dell'arte by Cennino Cennini. Flat brushes had not developed yet due to technological limitations in ferrule construction.

The 1700s is when the first mass-produced toothbrush was created. William Addis, following his imprisonment, was the first to pioneer drilling holes into a substrate to then secure ferrules with glue. The established manufacturing principle it follows is reminiscent of staple-set brush manufacturing that is used today.

The next major advancement was the utilization of metal ferrules in brush making. Using metal instead of regular animal hairs or organic fibers created a product which had superior durability and shape retention. This expanded the possible applications for brush products, and with more robust brushes, a new technique was developed to manufacture these products. Instead of using a wire or cord to secure the bristles to the base, now there would be a metal extrusion like a U-channel produced. The bristles would be inserted into the U-channel, and the metal extrusion would be crimped to hold the bristles in place. This mechanically secured way of holding brushes is seen widely today in industrial strip brushes. This prevented an issue at the time where moisture would get between the handle and brush, separating it.

The industrial revolution in the 18th and 19th centuries marked the mechanization and mass production turning point for brush manufacturing. In the 1850s, the first machines designed for drilling brush handles were patented. Anton Zahoransky is noted as the pioneer and founder of what would become brush-inserting machines.

When houses were first inhabited, homeowners used branches taken from shrubs to sweep up dirt, hence using the first brushes. In 1859, the first brush factory in America was set up in New York.

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