A bristle is a stiff
hair
Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals.
The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and ...
or
feather
Feathers are epidermal growths that form a distinctive outer covering, or plumage, on both avian (bird) and some non-avian dinosaurs and other archosaurs. They are the most complex integumentary structures found in vertebrates and an exa ...
(natural or artificial), either on an animal, such as a pig, a plant, or on a tool such as a
brush
A brush is a common tool with bristles, wire or other filaments. It generally consists of a handle or block to which filaments are affixed in either a parallel or perpendicular orientation, depending on the way the brush is to be gripped during u ...
or
broom
A broom (also known as a broomstick) is a cleaning tool, consisting of usually stiff fibers (often made of materials such as plastic, hair, or corn husks) attached to, and roughly parallel to, a cylindrical handle, the broomstick. It is thus a ...
.
Synthetic types

Synthetic materials such as
nylon
Nylon is a family of synthetic polymers characterised by amide linkages, typically connecting aliphatic or Polyamide#Classification, semi-aromatic groups.
Nylons are generally brownish in color and can possess a soft texture, with some varieti ...
are also used to make bristles in items such as brooms and sweepers. Bristles are often used to make
brushes
A brush is a common tool with bristles, wire or other filaments. It generally consists of a handle or block to which filaments are affixed in either a parallel or perpendicular orientation, depending on the way the brush is to be gripped during u ...
for cleaning purposes, as they are strongly abrasive; common examples include the
toothbrush
A toothbrush is a special type of brush used to clean the Human tooth, teeth, gingiva, gums, and tongue. It consists of a head of tightly clustered bristles, atop of which toothpaste can be applied, mounted on a handle (grip), handle which facil ...
and
toilet brush
A toilet brush is a tool for cleaning a toilet bowl.
Generally the toilet brush is used with toilet cleaner or bleach. The toilet brush can be used to clean the upper area of the toilet, around the bowl. However, it cannot be used to clean very ...
. The bristle brush and the scrub brush are common household cleaning tools, often used to remove dirt or grease from pots and pans. Bristles are also used on brushes other than for cleaning, notably paintbrushes.
Bristles are distinguished as ''
flagged'' (split, bushy ends) or ''unflagged;'' these are also known as ''
flocked
Flocking is the process of depositing many small fiber particles (called flock) onto a surface. It can also refer to the texture produced by the process, or to any material used primarily for its flocked surface. Flocking of an article can be per ...
'' or ''unflocked'' bristles. In cleaning applications, flagged bristles are suited for dry cleaning (due to picking up dust better than unflagged), and unflagged suited for wet cleaning (due to flagged ends becoming dirty and matted when wet). In painting, flagged bristles yield more even application.
[''Old-House Journal,'' May 1986]
p. 171
/ref>
Natural types
Bristles are found on pig
The pig (''Sus domesticus''), also called swine (: swine) or hog, is an omnivorous, domesticated, even-toed, hoofed mammal. It is named the domestic pig when distinguishing it from other members of the genus '' Sus''. Some authorities cons ...
breeds, instead of fur. Because the density is less than with fur, pigs are vulnerable to sunburn
Sunburn is a form of radiation burn that affects living tissue, such as skin, that results from an overexposure to ultraviolet (UV) radiation, usually from the Sun. Common symptoms in humans and other animals include red or reddish skin tha ...
. One breed, the Tamworth pig
The Tamworth is a British breed of domestic pig. It is the only red-coloured British pig. Its origins are unknown, but it appears to have developed near the town of Tamworth in south-eastern Staffordshire, close to Warwickshire border. It is on ...
, is endowed with a very dense bristle structure such that sunburn damage to skin is minimized. Animals named for their bristles include bristlebird
The bristlebirds are a family of passerine birds, Dasyornithidae. There are three species in one genus, ''Dasyornis''. The family is endemic to the south-east coast and south-west corner of Australia.Del Hoyo, J.; Elliot, A. & Christie D. (edito ...
s, the bristle-thighed curlew
The bristle-thighed curlew (''Numenius tahitiensis'') is a medium-sized shorebird that breeds in Alaska and winters on tropical Pacific islands.
It is known in Mangareva as ''kivi'' or ''kivikivi'' and in Rakahanga as ''kihi''; it is said to b ...
, the bristle-spined porcupine
The bristle-spined rat (''Chaetomys subspinosus'') is an arboreal rodent from the Atlantic forest in eastern Brazil. Also known as the bristle-spined porcupine or thin-spined porcupine, it is the only member of the genus ''Chaetomys'' and the ...
, and the Trinity bristle snail
The Trinity bristle snail (''Monadenia setosa'') is a species of medium-sized land snail, a terrestrial pulmonate gastropod mollusc in the family Monadeniidae.
Description
The Trinity bristle snail attains a body length of approximately 2.5&nb ...
.
Bristles also anchor worms to the soil to help them move.
See also
* Paintbrush
A paintbrush is a brush used to apply paint or ink. A paintbrush is usually made by clamping bristles to a handle with a ferrule. They are available in various sizes, shapes, and materials. Thicker ones are used for filling in, and thinner ones ...
* Bristle sensilla
Bristle sensilla are a class of mechanoreceptors found in insects and other arthropods that respond to mechanical stimuli generated by the external world. As a result, they are considered exteroceptors. Bristle sensilla can be divided into two m ...
- tactile hairs on insects
References
External links
Types of Bristle Materials Used for Brushes
{{Commons category, Bristle
Animal hair