introduction of pen

8/3/2019 Introduction of Pen

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INTRODUCTION OF PEN

While the idea of a ballpoint pen had been around for many years, it took three different

inventors and almost 60 years to develop this modern writing instrument. The first

patent for this invention was issued on October 30, 1888, to a man named John J. Loud.

His ballpoint pen consisted of a tiny rotating ball bearing that was constantly coated

with ink by a reservoir above it. While this invention worked, it was not well suited for

paper because it leaked and caused smearing. Two other inventors, Ladislas Biro and his

brother Georg, improved on Loud's invention and patented their own version, which

became the first commercially significant ballpoint pen. These pens still leaked, but not

as badly. They became popular worldwide, reaching the height of sales in 1944. The next

year another inventor, Baron Marcel Bich, finally solved the leakage problem and began

manufacturing Bic pens in Paris. Over the years, many improvements have been made

in the technology and quality of the various parts of the pen, such as the ink, the ball, the

reservoir, and the body.

The ballpoint pen was developed as a solution to the problems related to writing with a

fountain pen. Fountain pens require the user to constantly refresh the pen by dipping its

tip in ink. This is not necessary with a ballpoint pen because it is designed with its own

ink reservoir, which uses capillary action to keep the ink from leaking out. At the tip of

the pen is a freely rotating ball seated in a socket. Only part of this ball is exposed; the

rest of it is on the inside of the pen and is constantly being bathed by ink from the

reservoir. Pressing the tip of the pen on the writing surface causes the ball to roll. This

rolling action then transfers ink from the inside of the pen to the writing surface.

While different designs of ballpoint pens are available, many of the components are the

same. Common components include a ball, a point, ink, an ink reservoir or cartridge,

and an outer housing. Some pens are topped with a cap to prevent it from leaking or

having its point damaged. Other pens use a retractable point system for the same

reason. Here a small spring is attached to the outside of the ink reservoir, and when a

button is pushed, the point is either exposed or retracted. Still other varieties of

ballpoint pens have multiple ink cartridges, making it possible to write in different

colors using one pen. Other pens have refillable ink cartridges. One type of pen has a



pressurized cartridge that enables the user to write underwater, over grease, and in

space.

Raw Materials

A variety of raw materials are used for making the components of a ballpoint pen,

including metals, plastics, and other chemicals. When ballpoint pens were first

developed, an ordinary steel ball was used. That ball has since been replaced by a

textured tungsten carbide ball. This material is superior because it is particularly

resistant to deforming. The ball is designed to be a perfect sphere that can literally grip

most any writing surface. Its surface is actually composed of over 50,000 polished

surfaces and pits. The pits are connected by a series of channels that are continuous

throughout the entire sphere. This design allows the ink to be present on both the

surface and interior of the ball.

The points of most ballpoint pens are made out of brass, which is an alloy of copper and

zinc. This material is used because of its strength, resistance to corrosion, appealing

appearance, and ability to be easily formed. Other parts, like the ink cartridge, the body,

or the spring can also be made with brass. Aluminum is also used in some cases to make

the pen body, and stainless steel can be used to make pen components. Precious metals

such as gold, silver, or platinum are plated onto more expensive pens.

The ink can be specially made by the pen manufacturer. To be useful in a ballpoint pen,

the ink must be slightly thick, slow drying in the reservoir, and free of particles. These

characteristics ensure that the ink continues to flow to the paper without clogging the

ball. When the ink is on the paper, rapid drying occurs via penetration and some

evaporation. In an ink formulation, various pigments and dyes are used to provide the

color. Other materials, such as lubricants, surfactants, thickeners, and preservatives, are

also incorporated. These ingredients are typically dispersed in materials such as oleic

acid, castor oil, or a sulfonamide plasticizer.



A 1963 plastic and metal ballpoint pen commemorating the assassination of President

John F. Kennedy, Jr.

(From the collections of Henry Ford Museum & Greenfield Village.)

Until the advent of the computer, humans have scrambled to find writing instruments to

record story and song. The earliest scribbles were made with a burnt stick in sand. By

the fourth century B.C. , the Sumerians used wedge-shaped reed pens to cut pictorial

shapes into clay tablets. Eygptians painted hieroglyphics with brushes made from marsh

reeds and the ancient Chinese wrote with brushes of stiff hair. Ancient Greeks and

Romans sharpened stiff reeds to a point, resulting in chirography that was taut and

precise.

The quill pen, made from goose or swan feathers, was favored by writers for over 1,000

years. The soft quill was honed to a point, split at the tip to permit ink to flow freely, and

constantly resharpened. A monumental improvement over the quill pen was Joseph

Gillott's invention of the steel pen nib in the late nineteenth century, which required no

sharpening and could be separated from the pen body and changed as needed. Still, the

writer constantly dipped pen into ink, hoping to avoid drips.

Fountain pens store ink inside a reservoir within the pen, the nib thus supplied with a

constant stream of ink. Alonzo Cross featured a "stylographic pen" with an ink-

depositing needle point in the late 1860s, but blots and smears were still common.

However, the ballpoint pen virtually eradicated messes. Ballpoint pens manufactured

early in the century leaked, skipped, and dropped ink until 1950, when a new ink was

developed that made the ballpoint reliable.

Nancy EV Bryk



Plastics have become an important raw material in ballpoint pen manufacture. They

have the advantage of being easily formed, lightweight, corrosion resistant, and

inexpensive. They are primarily used to form the body of the pen, but are also used to

make the ink cartridge, the push button, the cap, and part of the tip. Different kinds of

plastics are used, based on their physical characteristics. Thermosetting plastics, like

phenolic resins, which remain permanently hard after being formed and cooled, are

typically used in constructing the body, cap, and other pieces. Thermoplastic materials

remain flexible. These include materials like high-density polyethylene (HDPE) and

vinyl resins, which can be used to make most of the pen components.

The ManufacturingProcess

Ballpoint pens are made to order in mass quantities. While each manufacturer makes

them slightly differently, the basic steps include ink compounding, metal component

formation, plastic component molding, piece assembly, packaging, labeling, and

shipping. In advanced shops, pens can go from raw material to finished product in less

than five minutes.

Making the ink

y 1 Large batches of ink are made in a designated area of the manufacturing plant.

Here workers, known as compounders, follow formula instructions to make

batches of ink. Raw materials are poured into the batch tank and thoroughly



mixed. Depending on the formula, these batches can be heated and cooled as

necessary to help the raw materials combine more quickly. Some of the larger

quantity raw materials are pumped and metered directly into the batch tank.

These materials are added simply by pressing a button on computerized controls.

These controls also regulate the mixing speeds and the heating and cooling rates.

Quality control checks are made during different points of ink batching.

S tamping and forming

y 2 While the ink is being made, the metal components of the pen are being

constructed. The tungsten carbide balls are typically supplied by outside vendors.

Other parts of the pen, such as the point and the body, are made using various

molds. First, bands of brass are automatically inserted into stamping machines,

which cut out thousands of small discs. The brass discs are next softened and

poured into a compression chamber, which consists of a steel ram and a spring-

backed ejector plunger. The steel ram presses on the metal, causing the plunger

to retract and forcing the metal into a die cast mold. This compresses the metal

and forms the various pen pieces. When the ram and plunger return to their

original positions, the excess metal is then scraped off and recycled. The die is

then opened, and the pen piece is ejected.y 3 The formed pieces are then cleaned and cut. They are immersed in a bath to

remove oils used in the molding process. After they emerge from the bath, the

parts are then cut to the dimensions of the specific pen. The pen pieces are next

polished by rotating brushes and cleaned again to remove any residual oils. The

ball can then be inserted into the point cavity.

Molding the housing

y 4 The plastic components of the pen are constructed simultaneously with the



other pen pieces. They can be produced by either extrusion or injection molding.

In each approach, the plastic is supplied as granules or powder and is fed into alarge hopper. The extrusion process involves a large spiral screw, which forces the

material through a heated chamber, making it a thick, flowing mass. It is then

forced through a die, cooled, and cut. Pieces such as the pen body and ink

reservoir are made by this method.

y 5 For pieces that have more complex shapes, like caps, ends, and mechanical

components, injection molding is used. In this process the plastic is heated,

converting it into a liquid that can then be forcibly injected into a mold. After itcools, it solidifies and maintains its shape after the die is opened.

I nk filling and assembly



y 6 After the components are formed, assembly can take place. Typically, the

ballpoint is first attached to the ink reservoir. These pieces are then conveyored

to injectors, which fill the reservoir with the appropriately colored ink. If a spring

is going to be present, it is then placed on the barrel of the reservoir.

F inal assembly, packaging, and shipping

y 7 The point and reservoir are then placed inside the main body of the pen. At this

stage, other components such as the cap and ends are incorporated. Other

finishing steps, such as adding coatings or decorations or performing a final

cleaning, are also done. The finished pens are then packaged according to how

they will be sold. Single pens can be put into blister packages with cardboard

backings. Groups of pens are packed into bags or boxes. These sales units are

then put into boxes, stacked on pallets, and shipped to distributors.

Q uality Control

The quality of pen components is checked during all manufacturing stages. Since

thousands of parts are made each day, inspecting each one is impossible. Consequently,

line inspectors take random samples of pen pieces at certain time intervals and check to

ensure that they meet set specifications for size, shape, and consistency. The primary testing method is visual inspection, although more rigorous measurements are also

made. Various types of measuring equipment are available. Length measurements are

made with a vernier caliper, a micrometer, or a microscope. Each of these differ in

accuracy and application. To test the condition of surface coatings, an optical flat or

surface gauge may be used.

Like the solid pieces of the pens, quality tests are also performed on the liquid batches of

ink. After all the ingredients are added to the batch, a sample is taken to the Quality Control (QC) laboratory for testing. Physical characteristics are checked to make sure

the batch adheres to the specifications outlined in the formula instructions. The QC

group runs tests such as pH determination, viscosity checks, and appearance

evaluations. If the batch is found to be "out of spec," adjustments can be made. For

instance, colors can be adjusted by adding more dye.



In addition to these specific tests, line inspectors are also posted at each phase of

manufacture. They visually inspect the components as they are made and check for

things such as inadequately filled ink reservoirs, deformed pens, and incorrectly

assembled parts. Random samples of the final product are also tested to ensure a batch

of pens writes correctly.

The Future

Ballpoint pen technology has improved greatly since the time of Loud's first patented

invention. Future research will focus on developing new inks and better designed pens

that are more comfortable and longer lasting. Additionally, manufacturers will strive to

produce higher quality products at the lowest possible cost. One trend that will continue

will be the development of materials and processes which use metals and plastics that

have undergone a minimum of processing from their normal state. This should

minimize waste, increase production speed, and reduce the final cost of the pens.

DEPARTMENTS USED IN PEN MANUFACTURING

Production department :

y for production and planning of Pen

y for purchasing raw material

y for design and technical support y h andling w ork

Human resource department:

y R ecruit ment, selection worker s for manufacturing. y P erfor mance, conduct and beh avior manage ment



y maintain Indu strial and employee relation s

Finance and accounting department:

y book kee ping procedure y C reating a balance sh eet and profit and loss account y W age s m anage ment of pa per.

Sales and marketing department : y F ocu s on th e C ustomer y onitor th e C ompetition y O wn th e Brand. y F ind & D irect O utside Vendor s. y C reate New Idea s. y

C ommunicate Internally. y anage a Budget. y U nder stand th e RO I.

S et th e S trategy, P lan th e Attack, and Execute

introduction of pen

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