Joined: 16 August 2005 Location: United States
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Posted: 09 January 2010 at 4:35am | IP Logged
Such natural coloring materials have been used and tested for centuries. Sure they can make a nice color, temporarily, but the color fades and changes quickly over time. Modern consumers demand much more from a dye than a quick, temporary bright color. You will notice that those nuts do not remain colored long, but decay and disappear rapidly leaving no colored trace of their existence.
The Mayan Blue with extraordinary weather and light reistant properties that lasted for centuries, was a "composite nano pigment" made with a natural indigo dye and Palygorskite, Magnesium Aluminum Silicate. Maybe you are right Waldo " there is nothing new under the sun" but we have to go to the "plenty of room at the botton" that Feynman mentioned talking abour the nano world.
We have to look at the "bottom" for changes in the "nano- leather-tech" of the future.
Joined: 22 August 2005 Location: United States
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Posted: 09 January 2010 at 1:59pm | IP Logged
Mayan Blue appears to me as being a pigment primarily and not a dye in the sence Ramachandran and Waldo were discussing! Pigments generally have much better light resistance than dyes. Really I think that a chemical's environmental properties are specific to the chemical and irrelevant to its origin, that is "natural" or "unnatural" . Natural origin bottulism toxin is 30K time more toxic that KCN that for some reason is considered artificial! Natural or Artificial is truelly BS since bulls by definition produce natural and mainly (but not all!) organic wastes!
David, Maya Blue is A NANO COMPOSITE, centuries old, is what the Material Sience is developming now , hybrids of organic and inorganic materials, that enhance each other good properties and compensate neutralizing their own disadvantages.
Joined: 22 August 2005 Location: United States
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Posted: 09 January 2010 at 9:50pm | IP Logged
A rose is a rose is a rose, but sometimes a pigment is called a lake! BlancFixe consists of an Aluminum Hydroxide-Barium sulfate inorganic media for pigments made out of organic dyes (lakes) that has been used for a long time, not quite as long as the Mayans, for lake manufacture before the term nano became so popular! Wether the naming of a collidal dimension rehelm product or structure is required to be able to describe it, is what chemists considered colloidal chemistry to be doing. Call it nano or colloid is not the important thing thing at all!
Joined: 28 September 2005 Location: India
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Posted: 10 January 2010 at 7:22am | IP Logged
We had seen good numder of paintings on the walls of ancient temples in India, painted with natural dyes, and are the juices from leaves and flowers. To my knowledge, if a research is carried out that will bring more details about them.
Helo Rama, how are you, long time no see. Welcome back.
You are right there are mony natural dyes worth taking a fresh new look at the, with new Nano eyes
You David get lost in the sementics and don't look at he principle, blue lake "pigment" will fade away under the harsh conditions the Maya Blue stood, take a look at the representacion on the link, very diifferent fronm a covalent/hydrogen bond link of a "chelate".
Joined: 28 September 2005 Location: India
Online Status: Offline Posts: 290
Posted: 11 January 2010 at 5:34am | IP Logged
Dear Zercas,
Thank you!
All thetheseys I was busy in reading the palm leaves manuscripts, paper manuscripts etc., related with Vedas and science behind them.
You might have heard the South Indians rituals are conducting fire sacrisacrifice offer herbal sticks in fire and create smoke and heat. I was asking myself several times what are these rituals and what made them to conduct these type of offerings. After searching myself for several days, I wanted to go in to this subject deeply and found many interesting reading.
I wished to post them here. It has around 31 Pictures and I don't know how to upload these pics in this forum.
Secondly, the Appendices are in PDF formt that also I wanted to upload. I am not an expert in computers and need assistance from some one to upload them in our forum.
Finally I wanted to find a way to encourage the herbal tanning which will bring back the life of Leather Industry.
If any one wish to do this I will try to help them.
According to Vedas, the vains in the leaves of a plant and the place where the vain rests/ lies has some resins, and the juices , the resins are converted in to milk and oil that will form as smoke and create NaNo rays when burnt will cure any diseases.
This same resin, if applied as tanning agent that will sit on the surface of the tanned skin, and when a man sits, the heat created by the human body when sit on the upholstry, create a vibrupholsteryt will penetrate through the skin.This wii cure the blood disorder which is resposible for most of thresponsibles.
For this you are to form a big net work and South America and Africa can give you more herbals.
With a aim to help others and to encourage the leather Industry and Herbal Gardens, this topic is discussed here.
I wish you people will rectify the mistakes if found and guide us in the right path.
Soon I will send my thesis to you in Word or PDF, which I request you to post them on my behalf.
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Leather Chemists : Leather Discussion
Topic: Natural Dyes
