A ballpoint pen, also known as a biro
(
British English
British English is the set of Variety (linguistics), varieties of the English language native to the United Kingdom, especially Great Britain. More narrowly, it can refer specifically to the English language in England, or, more broadly, to ...
), ball pen (
Hong Kong
Hong Kong)., Legally Hong Kong, China in international treaties and organizations. is a special administrative region of China. With 7.5 million residents in a territory, Hong Kong is the fourth most densely populated region in the wor ...
,
Indian,
Indonesian,
Pakistani
Pakistanis (, ) are the citizens and nationals of the Islamic Republic of Pakistan. Pakistan is the fifth-most populous country, with a population of over 241.5 million, having the second-largest Muslim population as of 2023. As much as ...
, and
Philippine English
Philippine English is a variety of English native to the Philippines, including those used by the media and the vast majority of educated Filipinos and English learners in the Philippines from adjacent Asian countries. English is taught ...
), or dot pen (
Nepali English and
South Asian English), is a
pen
PEN may refer to:
* (National Ecological Party), former name of the Brazilian political party Patriota (PATRI)
* PEN International, a worldwide association of writers
** English PEN, the founding centre of PEN International
** PEN America, located ...
that dispenses
ink (usually in paste form) over a
metal ball at its point, i.e., over a "ball point". The metals commonly used are
steel
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high Young's modulus, elastic modulus, Yield (engineering), yield strength, Fracture, fracture strength a ...
,
brass
Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, but copper typically has the larger proportion, generally copper and zinc. I ...
, or
tungsten carbide
Tungsten carbide (chemical formula: ) is a carbide containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering for use in in ...
. The design was conceived and developed as a cleaner and more reliable alternative to
dip pen
A dip pen is a writing instrument used to apply ink to paper. It usually consists of a metal nib (pen), nib with a central slit that acts as a capillary action, capillary channel like those of fountain pen nibs, mounted in a handle or holder, ofte ...
s and
fountain pens, and it is now the world's most-used
writing instrument
A writing implement or writing instrument is an object used to produce writing. Writing consists of different figures, lines, and or forms. Most of these items can be also used for other functions such as painting, drawing and technical drawing, ...
;
millions are manufactured and sold daily.
It has influenced art and
graphic design
Graphic design is a profession, academic discipline and applied art that involves creating visual communications intended to transmit specific messages to social groups, with specific objectives. Graphic design is an interdisciplinary branch of ...
and spawned
an artwork genre.
History
Origins
The concept of using a "ball point" within a writing instrument to apply ink to paper has existed since the late 19th century. In these inventions, the ink was placed in a thin tube whose end was blocked by a tiny ball, held so that it could not slip into the tube or fall out of the pen.
The first
patent
A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling discl ...
for a ballpoint pen was issued on 30 October 1888 to
John J. Loud, who was attempting to make a writing instrument that would be able to write "on rough surfaces—such as wood, coarse wrapping paper, and other articles" which
fountain pens could not. Loud's pen had a small rotating steel ball held in place by a socket. Although it could be used to mark rough surfaces such as leather, as Loud intended, it proved too coarse for letter-writing. With no commercial viability, its potential went unexploited,
and the patent eventually lapsed.
The manufacture of economical, reliable ballpoint pens as are known today arose from experimentation, modern chemistry, and the precision manufacturing capabilities of the early 20th century.
Patents filed worldwide during early development are testaments to failed attempts at making the pens commercially viable and widely available.
Early ballpoints did not deliver the ink evenly; overflow and clogging were among the obstacles faced by early inventors.
If the ball socket were too tight or the ink too thick, it would not reach the paper. If the socket were too loose or the ink too thin, the pen would leak, or the ink would smear.
Ink reservoirs pressurized by a piston, spring,
capillary action
Capillary action (sometimes called capillarity, capillary motion, capillary rise, capillary effect, or wicking) is the process of a liquid flowing in a narrow space without the assistance of external forces like Gravitation, gravity.
The effe ...
, and gravity would all serve as solutions to ink-delivery and flow problems.
László Bíró, a
Hungarian newspaper
A newspaper is a Periodical literature, periodical publication containing written News, information about current events and is often typed in black ink with a white or gray background. Newspapers can cover a wide variety of fields such as poli ...
editor (later a naturalized Argentine) frustrated by the amount of time that he wasted filling up fountain pens and cleaning up smudged pages, noticed that inks used in newspaper printing dried quickly, leaving the paper dry and smudge-free. He decided to create a pen using the same type of ink.
Bíró enlisted the help of his brother György, a dentist with useful knowledge of chemistry, to develop viscous ink formulae for new ballpoint designs.
Bíró's innovation successfully coupled viscous ink with a ball-and-socket mechanism that allowed controlled flow while preventing ink from drying inside the reservoir.
Bíró filed for a British patent on 15 June 1938.
In 1941, the Bíró brothers and a friend, Juan Jorge Meyne, fled Germany and moved to Argentina, where they formed "Bíró Pens of Argentina" and filed a new patent in 1943.
Their pen was sold in Argentina as the "Birome", from the names Bíró and Meyne, which is how ballpoint pens are still known in that country.
This new design was licensed by the British engineer
Frederick George Miles and manufactured by his company
Miles Aircraft
Miles was the name used for aircraft and associated businesses of British engineer Frederick George Miles, who, with his wife – aviator and draughtswoman Maxine Blossom Miles, Maxine "Blossom" Miles (née Forbes-Robertson) – and his brother ...
, to be used by
Royal Air Force
The Royal Air Force (RAF) is the Air force, air and space force of the United Kingdom, British Overseas Territories and Crown Dependencies. It was formed towards the end of the World War I, First World War on 1 April 1918, on the merger of t ...
aircrew as the "Biro". Ballpoint pens were found to be more versatile than fountain pens, especially in airplanes, where fountain pens were prone to leak.
Bíró's patent, and other early patents on ballpoint pens, often used the term "ball-point fountain pen".
Postwar proliferation

Following World War II, many companies vied to commercially produce their own ballpoint pen design. In pre-war Argentina, success of the Birome ballpoint was limited, but in mid-1945, the
Eversharp Co., a maker of
mechanical pencil
A mechanical pencil or clutch pencil is a pencil with a replaceable and mechanically extendable solid pigment core called a "lead" . The pencil lead, lead, often made of graphite, is not bonded to the outer casing, and the user can mechanically e ...
s, teamed up with
Eberhard Faber Co. to license the rights from Birome for sales in the United States.
In 1946, a Spanish firm, Vila Sivill Hermanos, began to make a ballpoint, Regia Continua, and from 1953 to 1957 their factory also made Bic ballpoints, on contract with the French firm
Société Bic.
During the same period, American entrepreneur
Milton Reynolds came across a Birome ballpoint pen during a business trip to
Buenos Aires
Buenos Aires, controlled by the government of the Autonomous City of Buenos Aires, is the Capital city, capital and largest city of Argentina. It is located on the southwest of the Río de la Plata. Buenos Aires is classified as an Alpha− glob ...
, Argentina.
Recognizing commercial potential, he purchased several ballpoint samples, returned to the United States, and founded the
Reynolds International Pen Company. Reynolds bypassed the Birome patent with sufficient design alterations to obtain an American patent, beating Eversharp and other competitors to introduce the pen to the US market.
Debuting at
Gimbels department store in New York City on 29 October 1945,
for US$12.50 each (1945 US dollar value, about $ in dollars),
"Reynolds Rocket" became the first commercially successful ballpoint pen.
Reynolds went to great extremes to market the pen, with great success; Gimbel's sold many thousands of pens within one week. In Britain, the
Miles-
(Harry) Martin pen company was producing the first commercially successful ballpoint pens there by the end of 1945.
Neither Reynolds' nor Eversharp's ballpoint lived up to consumer expectations in America. Ballpoint pen sales peaked in 1946, and consumer interest subsequently plunged due to
market saturation
In economics, market saturation is a situation in which a Product (business), product has become Diffusion_(business), diffused (distributed) within a Market (economics), market; the actual level of saturation can depend on consumer purchasing p ...
, going from
luxury good to
fungible
In economics and law, fungibility is the property of something whose individual units are considered fundamentally interchangeable with each other.
For example, the fungibility of money means that a $100 bill (note) is considered entirely equ ...
consumable
Consumables (also known as consumable goods, non-durable goods, or soft goods) are goods that are intended to be wikt:consume, consumed. People have, for example, always consumed food and water. Consumables are in contrast to durable goods. Dispos ...
.
By the early 1950s the ballpoint boom had subsided and Reynolds' company folded.
Paper Mate pens, among the emerging ballpoint brands of the 1950s, bought the rights to distribute their own ballpoint pens in Canada.
Facing concerns about ink-reliability, Paper Mate pioneered new ink formulas and advertised them as "banker-approved".
In 1954,
Parker Pens released "
The Jotter"—the company's first ballpoint—boasting additional features and technological advances which also included the use of tungsten-carbide textured ball-bearings in their pens.
In less than a year, Parker sold several million pens at prices between three and nine dollars.
In the 1960s, the failing
Eversharp Co. sold its pen division to Parker and ultimately folded.
Marcel Bich also introduced a ballpoint pen to the American marketplace in the 1950s, licensed from Bíró and based on the Argentine designs.
Bich shortened his name to Bic in 1953, forming the ballpoint brand
Bic now recognized globally.
Bic pens struggled until the company launched its "Writes First Time, Every Time!" advertising campaign in the 1960s.
Competition during this era forced unit prices to drop considerably.
In 2002, the Pakistani company Shaheen Group entered the pen market with the subsidiary Shaheen Ballpoints, as in Pakistan the ballpoint pen had a big demand but its quality was low. Shaheen had to compete with foreign companies that were in Pakistan for decades, such as Sayyed Engineers, Dollar Industries, Shahsons and Indus Pencils. The wholesale market bought their stocks in advance, but after six months the company had to pull their stocks due technical and marketing issues.
Production in China
Many industrial sites specialized in pen production were created in China. One important production site is the
Fenshui Township. Their ballpoint pen production started in 1974, when the Hangzhou Ballpoint Pen Factory initiated its production using
bamboo
Bamboos are a diverse group of mostly evergreen perennial plant, perennial flowering plants making up the subfamily (biology), subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family, in th ...
. The
Wengang Township has a long tradition of brush pen production, but all kinds of pens are produced, including ballpoint pens. In 2002, China's Pen Capital was constructed in
Wenzhou
Wenzhou; Chinese postal romanization, historically known as Wenchow is a prefecture-level city in China's Zhejiang province. Wenzhou is located at the extreme southeast of Zhejiang, bordering Lishui, Zhejiang, Lishui to the west, Taizhou, Zheji ...
, with an investment of ¥ 600 million.
AIHAO was one of the first companies to move to the industrial site. Their most famous product is the ball-point pen.
In the 2000s, China ballpoint pen production skyrocketed. In 2017, China produced 38 billion ballpoint pens per year, 80% of the global market. But the country had a problem in precision engineering the ballpoint pen tip, which had to be imported from Germany, Switzerland, and Japan for the cost of
¥ 120 million a year.
The subject was criticized by
western media
Western media is the mass media of the Western world. During the Cold War, Western media contrasted with Soviet media. Western media has gradually expanded into developing countries (often, non-Western countries) around the world.
History
T ...
. ''
Forbes
''Forbes'' () is an American business magazine founded by B. C. Forbes in 1917. It has been owned by the Hong Kong–based investment group Integrated Whale Media Investments since 2014. Its chairman and editor-in-chief is Steve Forbes. The co ...
'' argued that the lack of
IP protections were the cause of it, as the country wouldn't attract investments in innovation. ''
Financial Times
The ''Financial Times'' (''FT'') is a British daily newspaper printed in broadsheet and also published digitally that focuses on business and economic Current affairs (news format), current affairs. Based in London, the paper is owned by a Jap ...
'' argued that because of Chinese self-sufficiency policy, companies handled the entire
supply chain
A supply chain is a complex logistics system that consists of facilities that convert raw materials into finished products and distribute them to end consumers or end customers, while supply chain management deals with the flow of goods in distri ...
by themselves, thus creating inefficiency.
''
Hong Kong Economic Journal'' declared that "the day China can produce a 100% homemade ball pen will be the day it truly qualifies as a first-class industrial power".
Since 2011, the
Ministry of Science and Technology invested $8.7 million in the production of the tips. Beifa Group worked with
Taiyuan Iron & Steel Group (TISCO) with no success.
In 2016, the
Chinese Premier Li Keqiang complained on national television about the quality of Chinese pens.
In June 2016, TISCO produced the first national ballpoint pen. In November, TISCO's industry standard was approved by the China Metallurgical Standardization Research Institute and on 10 January 2017 the pens were officially announced. The achievement reached the front-page news, was discussed in talk shows and celebrated on social media.
Inks
Ballpoint pen ink is normally a paste containing around 25 to 40 percent dye. The dyes are suspended in a mixture of solvents and fatty acids.
The most common of the solvents are
benzyl alcohol
Benzyl alcohol (also known as α-cresol) is an aromatic alcohol with the formula C6H5CH2OH. The benzyl group is often abbreviated "Bn" (not to be confused with "Bz" which is used for benzoyl), thus benzyl alcohol is denoted as BnOH. Benzyl a ...
or
phenoxyethanol, which mix with the dyes and oils to create a smooth paste that dries quickly. This type of ink is also called "oil-based ink". The fatty acids help to lubricate the ball tip while writing. Hybrid inks also contain added lubricants in the ink to provide a smoother writing experience. The drying time of the ink varies depending upon the viscosity of the ink and the diameter of the ball.
In general, the more viscous the ink, the faster it will dry, but more writing pressure needs to be applied to dispense ink. But although they are less viscous, hybrid inks have a faster drying time compared to normal ballpoint inks. Also, a larger ball dispenses more ink and thus increases drying time.
The dyes used in blue and black ballpoint pens are
basic
Basic or BASIC may refer to:
Science and technology
* BASIC, a computer programming language
* Basic (chemistry), having the properties of a base
* Basic access authentication, in HTTP
Entertainment
* Basic (film), ''Basic'' (film), a 2003 film
...
dyes based on
triarylmethane and acid dyes derived from
diazo compounds or
phthalocyanine. Common dyes in blue (and black) ink are
Prussian blue
Prussian blue (also known as Berlin blue, Brandenburg blue, Parisian and Paris blue) is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts. It has the chemical formula . It consists of cations, where iron is in the oxidat ...
, Victoria blue,
methyl violet,
crystal violet, and
phthalocyanine blue. The dye
eosin
Eosin is the name of several fluorescent acidic compounds which bind to and from salts with basic, or eosinophilic, compounds like proteins containing basic amino acid residues such as histidine, arginine and lysine, and stains them dark red ...
is commonly used for red ink.
The inks are resistant to water after drying but can be defaced by certain solvents which include acetone and various alcohols.
Types of ballpoint pens

Ballpoint pens are produced in both disposable and refillable models. Refills allow for the entire internal ink reservoir, including a ballpoint and socket, to be replaced. Such characteristics are usually associated with designer-type pens or those constructed of finer materials. The simplest types of ballpoint pens are disposable and have a cap to cover the tip when the pen is not in use, or a mechanism for retracting the tip,
which varies between manufacturers but is usually a spring- or screw-mechanism.
Rollerball pens employ the same ballpoint mechanics, but with the use of water-based inks instead of oil-based inks. Compared to oil-based ballpoints, rollerball pens are said to provide more fluid ink-flow, but the water-based inks will blot if held stationary against the writing surface. Water-based inks also remain wet longer when freshly applied and are thus prone to "smearing"—posing problems to left-handed people (or right handed people writing
right-to-left
A writing system comprises a set of symbols, called a ''script'', as well as the rules by which the script represents a particular language. The earliest writing appeared during the late 4th millennium BC. Throughout history, each independen ...
script)—and "running", should the writing surface become wet.
Some ballpoint pens use a hybrid ink formulation whose viscosity is lower than that of standard ballpoint ink, but greater than rollerball ink.
The ink dries faster than a
gel pen to prevent smearing when writing. These pens are better suited for left-handed persons. Examples are the Zebra Surari,
Uni-ball Jetstream and
Pilot
An aircraft pilot or aviator is a person who controls the flight of an aircraft by operating its Aircraft flight control system, directional flight controls. Some other aircrew, aircrew members, such as navigators or flight engineers, are al ...
Acroball ranges. These pens are also labelled "extra smooth", as they offer a smoother writing experience compared to normal ballpoint pens.
Ballpoint pens with erasable ink were pioneered by the
Paper Mate pen company.
The ink formulas of erasable ballpoints have properties similar to
rubber cement
Rubber cement (cow gum in British English) is an adhesive made from elastic polymers (typically natural rubber, latex) mixed in a solvent such as acetone, hexane, heptane or toluene to keep it fluid enough to be used. This makes it part of the cla ...
, allowing the ink to be literally rubbed clean from the writing surface before drying and eventually becoming permanent.
Erasable ink is much thicker than standard ballpoint inks, requiring pressurized cartridges to facilitate inkflow—meaning they can also write upside-down. Though these pens are equipped with erasers, any eraser will suffice.
Ballpoint tips are fitted with balls whose diameter can vary from 0.28 mm to 1.6 mm. The ball diameter does not correspond to the width of the line produced by the pen. The line width depends on various factors like the type of ink and pressure applied. Some standard ball diameters are: 0.3 mm, 0.38 mm, 0.4 mm, 0.5 mm, 0.7 mm (fine), 0.8 mm, 1.0 mm (medium), 1.2 mm and 1.4 mm (broad). Pens with ball diameters as small as 0.18 mm have been made by Japanese companies, but are extremely rare.
The inexpensive, disposable
Bic Cristal (also simply "Bic pen" or "Biro") is reportedly the most widely sold pen in the world.
[''Phaidon Design Classics- Volume 2'', 2006 Phaidon Press Ltd. ][''Humble Masterpieces''](_blank)
– The Museum of Modern Art New York, 8 April – 27 September 2004. It was the Bic company's first product and is still synonymous with the company name. The Bic Cristal is part of the permanent collection at the
Museum of Modern Art
The Museum of Modern Art (MoMA) is an art museum located in Midtown Manhattan, New York City, on 53rd Street (Manhattan), 53rd Street between Fifth Avenue, Fifth and Sixth Avenues. MoMA's collection spans the late 19th century to the present, a ...
in New York City, acknowledged for its
industrial design
Industrial design is a process of design applied to physical Product (business), products that are to be manufactured by mass production. It is the creative act of determining and defining a product's form and features, which takes place in adva ...
.
Its hexagonal barrel mimics that of a wooden
pencil
A pencil () is a writing or drawing implement with a solid pigment core in a protective casing that reduces the risk of core breakage and keeps it from marking the user's hand.
Pencils create marks by physical abrasion, leaving a trail of ...
and is transparent, showing the ink level in the reservoir. Originally a sealed streamlined cap, the modern pen cap has a small hole at the top to meet safety standards, helping to prevent suffocation if children suck it into the throat.

Multi-pens are pens that feature multiple varying colored pen refills. Sometimes ballpoint refills are combined with another non-ballpoint refill, usually a mechanical pencil. Sometimes ballpoint pens combine a ballpoint tip on one end and touchscreen stylus on the other.
Ballpoint pens are sometimes provided free by businesses, such as hotels and banks, printed with a company's name and logo. Ballpoints have also been produced to commemorate events, such as a pen commemorating the 1963
assassination of President John F. Kennedy.
These pens, known as "advertising pens," are the same as standard ballpoint pen models, but have become valued among collectors.
Sometimes ballpoint pens are also produced as design objects. With cases made of metal or wood, they become individually styled utility objects.
Use of ballpoint pens in space
It is generally believed that gravity is needed to coat the ball with ink. In fact most ballpoint pens on the Earth do not work when writing upside-down because the Earth's gravity pulls the ink inside the pen away from the tip of the pen. However, in the microgravity environment of space a regular ballpoint pen can still work, pointed in any direction, because the capillary forces in the ink are stronger than non present gravitational forces.
The functionality of a regular ballpoint pen in space was confirmed by ESA astronaut Pedro Duque in 2003.
Technology developed by Fisher pens in the United States resulted in the production of what came to be known as the "Fisher
Space Pen". Space Pens combine a more viscous ink with a pressurized ink reservoir
that forces the ink toward the point. Unlike a standard ballpoint's ink container, the rear end of a Space Pen's pressurized reservoir is sealed, eliminating evaporation and leakage,
thus allowing the pen to write upside-down, in zero-gravity environments, and allegedly underwater. Astronauts have made use of these pens in outer space.
As an art medium

The ballpoint pen has proven to be a versatile
art medium for both professional artists and amateur
doodle
A doodle is a drawing made while a person's attention is otherwise occupied. Doodles are simple drawings that can have concrete representational meaning or may just be composed of random and abstract art, abstract lines or shapes, generally w ...
rs.
Low cost, availability, and portability are cited by practitioners as qualities which make this common writing tool a convenient art supply.
Some artists use them within
mixed-media works, while others use them solely as their medium-of-choice.
Effects not generally associated with ballpoint pens can be achieved. Traditional
pen-and-ink techniques such as
stippling
Stippling is the creation of a pattern simulating varying Grayscale, degrees of solidity or shading by using small dots. Such a pattern may occur in nature and these effects are frequently emulated by artists.
Art
In printmaking, stipple ...
and
cross-hatching can be used to create half-tones
or the illusion of form and volume.
For artists whose interests necessitate precision line-work, ballpoints are an obvious attraction; ballpoint pens allow for sharp lines not as effectively executed using a brush.
Finely applied, the resulting imagery has been mistaken for airbrushed artwork
and photography,
causing reactions of disbelief which ballpoint artist
Lennie Mace refers to as the "Wow Factor".
Famous 20th-century artists including
Andy Warhol
Andy Warhol (;''Random House Webster's Unabridged Dictionary''"Warhol" born Andrew Warhola Jr.; August 6, 1928 – February 22, 1987) was an American visual artist, film director and producer. A leading figure in the pop art movement, Warhol ...
, have utilized the ballpoint pen during their careers.
Ballpoint pen artwork continues to attract interest in the 21st century, with many
contemporary artists gaining recognition for their specific use of ballpoint pens as a medium. Korean-American artist
Il Lee has been creating large-scale, abstract artwork since the late 1970s solely with ballpoint pens.
Since the 1980s,
Lennie Mace creates imaginative, ballpoint-only artwork of varying content and complexity, applied to unconventional surfaces including wood and denim.
The artist coined terms such as "PENtings" and "Media Graffiti" to describe his varied output.
British artist
James Mylne has been creating photo-realistic artwork using mostly black ballpoints, sometimes with minimal mixed-media color.
The ballpoint pen has several limitations as an art medium. Color availability and sensitivity of ink to light are among concerns of ballpoint pen artists.
As a tool that uses ink, marks made with a ballpoint pen can generally not be erased.
Additionally, "blobbing" ink on the drawing surface and "skipping" ink-flow require consideration when drawing with a ballpoint pen.
Although the mechanics of ballpoint pens remain relatively unchanged, ink composition has evolved to solve certain problems over the years, resulting in unpredictable sensitivity to light and some extent of fading.
Manufacturing
The common ballpoint pen is a product of
mass production
Mass production, also known as mass production, series production, series manufacture, or continuous production, is the production of substantial amounts of standardized products in a constant flow, including and especially on assembly lines ...
, with components produced separately on assembly lines.
Basic steps in the manufacturing process include the production of ink formulas, molding of metal and plastic components, and assembly.
Marcel Bich (leading to
Société Bic) was involved in developing the production of inexpensive ballpoint pens.

Although designs and construction vary between brands, basic components of all ballpoint pens are universal.
The making of a ballpoint pen, specially the tip, is considered a work of
precision engineering
Precision engineering is a subdiscipline of electrical engineering, software engineering, electronics engineering, mechanical engineering, and optical engineering concerned with designing machines, fixtures, and other structures that have except ...
. Standard components of a ballpoint tip include the freely rotating "ball" itself (distributing the ink on the writing surface), a "socket" holding the ball in place, small "ink channels" that provide ink to the ball through the socket, and a self-contained "ink reservoir" supplying ink to the ball.
In modern disposable pens, narrow plastic tubes contain the ink, which is compelled downward to the ball by gravity.
Brass, steel, or tungsten carbide are used to manufacture the ball bearing-like points,
then housed in a brass socket.
The function of these components can be observed at a larger scale in the ball-applicator of roll-on antiperspirant. The ballpoint tip delivers the ink to the writing surface while acting as a "buffer" between the ink in the reservoir and the air outside, preventing the quick-drying ink from drying inside the reservoir. Modern ballpoints are said to have a two-year shelf life, on average.
A ballpoint tip that can write comfortably for a long period of time is not easy to produce, as it requires high-precision machinery and thin high-grade steel alloy plates. China, which produces about 80 percent of the world's ballpoint pens, relied on imported ballpoint tips and metal alloys before 2017.
Standards
The
International Organization for Standardization
The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries.
M ...
has published standards for ball point and roller ball pens:
; ISO 12756:1998: Drawing and writing instruments – Ball point pens – Vocabulary
; ISO 12757-1:1998: Ball point pens and refills – Part 1: General use
; ISO 12757-2:1998: Ball point pens and refills – Part 2: Documentary use (DOC)
; ISO 14145-1:1998: Roller ball pens and refills – Part 1: General use
; ISO 14145-2:1998: Roller ball pens and refills – Part 2: Documentary use (DOC)
Guinness World Records
* The world's largest functioning ballpoint pen was made by Acharya Makunuri Srinivasa in India. The pen measures long and weighs .
* The world's most popular pen is the
Bic Cristal, with the 100 billionth model sold in September, 2006. The Bic Cristal was launched in December 1950 and roughly 57 are sold per second.
See also
*
Gel pen
*
List of pen types, brands and companies
*
Retractable pen
*
Rollerball pen
*
Ballpoint pen knife
References
External links
Fascinating facts about the invention of the Ballpoint Pen by Ladislas Biro in 1935(archived 13 September 2019)
Laszlo Biro on Jewish.hu's list of famous Hungarians(archived 22 May 2013)
{{Authority control
American inventions
Argentine inventions
Hungarian inventions
Pens