Already on ArticleSlash?

Forgot your password? Sign Up

The World of Dyes

Uday Patel

Visitors: 371

The first dyes were extracted from nature mostly plants. Their usage is going on in India for centuries. The first synthetic dye was made by William Perkin also called organic dyes these chemicals have been made into wide variety of colors since then. The basic function of these chemicals is to impart color to the substrate. Both natural and synthetic dyes perform this function. The pigments differ much from these organic substances and do not impart color to the substrate.

The organic dyes have totally replaced natural ones as they are economical and display wide array of colors. There are many types of these color imparting substances and they differ not only in color but the type of process they can be subjected to. Some of the types are: acid, basic, direct, reactive and sulfur dyes. The function and action differs a lot, hence some may be used to color food others for or clothing and some for hair. Actually the list is quite large and more development is taking place in the chemical industry.

These chemicals are subjected to may tests and regulation during and after manufacture. Food coloring agents have to be safe for human consumption and hence are tested vigorously for carcinogenicity and toxicity. Some coloring chemical used on fibers may cause allergies hence they are not used.

Acid, reactive and cold ones are most used on clothing fibers. Each is used in different substrate like cotton, silk, wool and nylon. Direct ones are used on leather besides fibers. Denim is colored by Vat dye that imparts characteristic color to jeans which we commonly wear. Some of these coloring agents function in presence of another agent and are mostly used in imparting special effects to fibers like cotton. Lot of specialization has taken place in case of manufacture with progress in technology. The manufacturing is a complex process with usage of intermediates, differing methods and technology.

The manufacturing units are spread all over the globe but major producers are in the developed countries. The consumption of coloring chemicals is continuously on the rise. Though useful some of the dyes are health hazards and can be used in limited quantities only.

Uday writes often on reactive and acid dye manufacturers in Gujarat in India. He also writes on dye intermediates used in the manufacture. Uday writes often on chemical inudstries of India.


Article Source:

Rate this Article: 
To Explore the World of Amusement Buy Disney World Tickets
Rated 4 / 5
based on 5 votes

Related Articles:

Solar Dyes Turn Skyscrapers Into Power Generators and Improve Solar Panels by ..

by: Linda A. (July 14, 2008) 

Itchy Scalp and Hair Dyes Why Your Hair Dye is Burning Your Scalp

by: Anne Cresacre (June 20, 2008) 
(Health and Fitness/Skin Care)

Can a World of Warcraft Warrior Survive in a Warhammer Online World?

by: B. Tru (October 04, 2008) 
(Gaming/Online Gaming)

World of Warcraft is a Living Breathing Online Adventure World

by: Christopher West (July 30, 2008) 
(Gaming/Online Gaming)

Appliance World And Home Theater - The World Of Electronic Goods!

by: David Faulkner (June 28, 2007) 
(Home Improvement)

Send Out Cards - Old World Ways and New World Technology Collide

by: Curt Johnson (August 14, 2008) 

Usain Bolt Success Secrets - Fastest Man in World, Olympic Gold Medalist, and ..

by: Paul Davis (August 20, 2008) 
(Self Improvement/Success)

A Revolution In Automotive World: Mercedes Benz World

by: June Thompson (January 25, 2011) 

The New World Order Agenda Part 3 - Globalization of Our World

by: Alberta Parish (September 27, 2008) 

To Explore the World of Amusement Buy Disney World Tickets

by: Ricky Samuel Martin (July 24, 2008) 
(Travel and Leisure/Destination Tips)