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-About "Ask A Scientist!" -

On September 17th, 1998 the Ithaca Journal ran its first "Ask A Scientist!"
article in which Professor Neil Ashcroft , who was then the director of
CCMR, answered the question "What is Jupiter made of?" Since then, we have
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Previous Week's Question Published: 12 July, 2006 Next Week's Question

Mixture of dyes, pigments, liquids makes world more colorful
Question
How is ink made?
Ask your own question!

Question
Inks are colored liquids that are used to write or print onto surfaces
(paper, plastic, metal, glass, etc.) or objects such as boxes and bottles.
They have been used as long as people have been writing and drawing. They
may be white, black or any of the colors of the rainbow. Inks are used in
ballpoint pens, computer printers and huge printing presses that print
newspapers


Source: www.ccmr.cornell.edu/education/ask/?quid=1068


how is ink made


Ink - Wikipedia, the free encyclopedia

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** Ink **

From Wikipedia, the free encyclopedia
Jump to: navigation, search
For other uses, see Ink (disambiguation).
Bottles of ink from Germany.

*Ink* is a liquid or paste that contains pigments or dyes and is used to
color a surface to produce an image, text, or design. Ink is used for
drawing or writing with a pen, brush, or quill. Thicker inks, in paste
form, are used extensively in letterpress and lithographic printing.

Ink can be a complex medium, composed of solvents, pigments, dyes, resins,
lubricants, solubilizers, surfactants, particulate matter, fluorescers, and
other materials. The components of inks serve many purposes; the ink’s
carrier, colorants, and other additives flow and thickness of the ink and
its appearance when dry.

*Contents*

· 1 Types

· 1.1 Colorants

· 1.1.1 Pigments
· 1.1.2 Dyes

· 2 History
· 3 Health and environmental aspects
· 4 Writing and preservation

· 4.1 Carbon
· 4.2 Iron gall

· 5 Indelible ink
· 6 See also
· 7 References
· 8 Sources
· 9 Further reading
· 10 External links

*Types[edit]*

Magnified line drawn by a fountain pen.

Ink formulas vary, but commonly involve four components:

· Colorants
· Vehicles (binders)
· Additives
· Carrier substances

Inks generally fall into four classes:^[1]

· Aqueous
· Liquid
· Paste
· Powder

-Colorants[edit]-

Pigment inks are used more frequently than dyes because they are more
color-fast, but they are also more expensive, less consistent in color, and
have less of a color range than dyes.^[1]

Pigments[edit]

Main article: Pigment

Pigments are solid, opaque particles suspended in ink to provide color.^[1]
Pigment molecules typically link together in crystalline structures that
are 0.1–2 µm in size and comprise 5–30 percent of


Source: en.wikipedia.org/wiki/Ink

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