color pigments

There's a good primer on Wikipedia : http://en.wikipedia.org/wiki/Pigment

Thank you so much. Your information was just what I needed.

Where are you an art teacher and how did you get your credentials? This is stuff I learned in school as a child. No wonder our children can graduate high school and not even be able to read.

I'm sure there are quite a number of good references in Wiki, not to mention even the dictionary. I suppose you didn't learn basic research techniques either.

I must tell you your question has inflamed my wrath and added credence to a long held belief.

Shadetree may have offended your sensibilities but he's perfectly correct in his response and his tone.

An art TEACHER, no less, that doesn't know how paint pigments are made, and even worse, can't be bothered to do even a cursory search, is a disgrace and should be stripped of all their credentials.

Thank God someone is paying attention ! You're right on the money.

Easy now! Don't you remember: Those who can't, teach. No reason painting arts should be an exception.

interest, are you going to produce the pigments? or you wish to learn the history of art, color fineart?

I know a little, but you can ifnd them in art history textbook.

Hi Loana, and welcome. I don't know where you are but the others are correct in the fact that this is all common info for an art student, so a teacher should know it. Were you trained as an art teacher or did you just "get the job" on your experiences?

The reason I ask where you are from is because different methods are used in different countries. In most cases lead is still used as a pigment for yellow paint. Since you have access to the internet, and most likely a library, please look it up. It is all there. Or take a night course and use the knowledge to help your students the following day. Many school systems, in the US, will pay all or part of your continuing education if it pertains to your academic field. Best of luck.

Hi Loana,

The first pigments were made from various plant, mineral, and animal sources.

Look up indigo, mauve, carmine, "chrome yellow", and any other color that you can think of. Wikipedia has quite a lot of information on colors/dyes and where they came from. Just use Google!

Mike

Hi Loana

There is one yellow, namely Naples Yellow, that has a very strange origin. It is made by feeding cows only with Mangoes (In India) for extended times and then collecting the urine. This is then evaporated and the pigment left is a light yellow but very opaque. It can be mixed with blue with out getting a green. This is not easy to achieve and is a bit like mixing gunpowder. A bit more or less does matter. I assure you I am not taking the piss. What a hard word for such a soft color.

Now, back to the drawing board and teach them how to draw first. It is good training for the eyes and is a gift for life.

Don't worry about the shade color of a tree yet, that is much more complex and can be a painful process.

You go and teach and learn at the same time. No damage done! Good luck, Ky.

I did a Google search with "make your own paint", there were hundreds of hits, that is an easy way for you to answer your own question. Try this link first:-

My wife has a fine arts degree and knows the history of pigments well. But one can be an qualified art teacher at the K-12 level in the US with a teaching degree that focuses more on student learning techniques and the schoolday practicum than on knowledge of the physical media.

I know someone who was intimidated by the idea of internet searching just a year ago and would not have thought to go to Wikipedia or Google. So congratulations to Loana Broadbent for trying to go one step further than her job description requires.

I believe one of the purposes of CR4 is to be an Engineering Embassy, to bring a little bit of Engineering to those who aren't trained in it. May all of our citizens realize how empiricism and knowledge of the physical layer of reality helps them to ensure the survival of the good parts of our civilizations, the extinction of the bad parts, and resist the marketers and the magical thinkers...

Yellow light is of the free quency of 560nm and is combination of red-green and also red-green and blue. This is also call RGB in commonly used in color combination development of color TV which is common in every one home.

Any mineral which has ability to absorb blue color and let red and green reflect back will be color yellow.

If blue is partially absorbed then we will have different shade of yellow as we see in nature.

IS this is enough explaination or we need to explain more

Google search is equal to raising one's hand to ask the teacher, congratulation for exceeding minimum expectations.

GOOD ONE !!!!!!!!!!

Funnier, even, is this comment from response # 19 (name too long):

There are good deal of literatures availabble.....

Gee, why is America in the crapper?

There are good deal of literatures availabble on inorganic colouring matter.

ferrous salts-green,copper,cobal salts-blue,chrome salts-yellow to orange and so on.you will find details on books on inorganic pigment manufacture as well refer colored metalic salts in inorganic chemistry.

sumarthandan@gmail.com

Hi， all,

it seems your relatives are all dedicated at art. anyone can suggest me some good art bbs, forum? pm to me

thanks

it seems none here know extra bbs about art as well as forum.

or them maybe too selfnish to talk out.

I suppose there is some linkage between art and engineering. In fact I think something that is well engineered is a thing of beauty.

In western cultures, however, the two are seldom mixed.

If I were interested in art for arts sake I would probably be chatting on a forum dedicated to the subject.

but when I read western science and culture history. I found no difficult that most of them both scienists and artists.

most of them are painter and engineers, or musician and sciensits. I can list many examples.

btw, any mathmatician out there? I hve some geometry problem wish to ask for help.

Yes I suppose you are right. In order to produce pleasing art it is necessary to have some idea of the science - and when science is done well it is a thing of beauty.

My previous statement must have been a pigment of my imagination.

doesnt matter,

when you know Davince, you will know beauty between science and art. when you know Enstain, you will know wonderful harmonious between science and music.

I wish there will be more artists come to join us. and can offer us more art forums

Dear Loana,

I am a Color Chemist for a very large chemical company and have worked with color pigments and dyes for over 22 years in plastics. Many of the colorants used in artist paste type formulations can be either inorganic or organic (synthesized chemicals). A very common yellow or red artist paste is based on cadmium sulfide - yellows & cadmium sulfoselenide - reds. There are also iron oxide reds and iron oxide yellows. These are typically much less intense in chroma Vs. the cadmium based colorants. Most inorganic colorants are based on ore - like iron ore or other types of ores mined from the ground. These ores are refined and sometimes chemically reacted with other ingredients to make the final chemical. There are a wide range of chemicals used in blue artist pastes. There are ultramarine pigments that are based on aluminum, sulfur, sodium and silicate which come from ore and are heat treated to form the final color pigment. There are also organic synthesized phthalocyanine pigments which are very complex organic type molecules that are man made and synthesized in a reactor. White pigments like Tio2 which is very common in coloring many white articles like paints, plastics, etc come from titanium ore which is then heat treated and processed to make Titanium dioxide.

A very good resource and website for you to check out is specad.org. This is the Society of Plastics Color and Appearance Organization and it has a wealth of information about colorants and how they evolved.

Regards,

Scott