Organic Hair Dyes Essays -- cosmetics, history, ancient rome

total Hair DyesOrganic dyestuffs in tomentumcloth products and cosmetics bring forth been used throughout history for some(prenominal) aspects of culture and art. Today organic dyes are used in the carry out of copper dying and colouring where more aspects of the organic tinge are taken into account. Some dyes are permanent where they stay until the hair waterf each out, where some dyes can be washed away due to their bind process into the hair1. Certain dyes have their own way of being roofy into hair fibres and easier ways to set these are being researched. Hair dyes have been used throughout history and have been remarkably improved on, many new colours and processes have been made and many issues have keep down with them.Hair dyes have been used throughout history and set forthed out in very simple ways. Around 3150BC ancient Egyptians were one of the first to start using dyes in hair.2 From a plant called Henna they obtained the leaves and mashed them in softl y acidic conditions.3 When the leaves are mashed in these conditions the leaves release a molecule called lawsone.3 This molecule is the organic molecule responsible for the brownish red colour and is the dye acquired from this mixture. With small amounts of the molecule mixed with various other compounds, oranges can plain be created. Mashed henna also incorporated with para-phenylenediamine (PPD) to give a duskiness black red colour. 3 This molecule will not stay in the hair unless it is somehow oxidized once in the hair fibres but was not discovered until the 1900s. It is speculated that the ancient Egyptians used slaked lime tree and water with lead oxide to make a paste where it was then rubbed into the hair for a long period of time.2 The slaked lime and water firmness of purpose was very high in alkali metals,... ...hnology improves and the safer the process is becoming for all users.References1.Clausen, T. Hair Preparations. Wiley . 2006. pile 1.1-46.2.Nayland, C. (2006, 10 26). Web log message. Retrieved from http//carlanayland.blogspot.ca/2006/10/ancient-egyptian-hair-dye-technology.html3.Wikipedia. (2014, 04 02). Henna. Retrieved from http//en.wikipedia.org/wiki/Henna4.The hair in ancient times. (2014, 04 04). Retrieved from http//thehistoryofthehairsworld.com/old_age_2.html5.Raja et al. Pelagia Research Library. 2012, Volume 3.156-1616.San Rafael. The Chemistry of be and Animal Dyes.1-5. 1981. Volume 58.1-5.7.Discovery of hair dye. (2014, 04 04). Retrieved from http//humantouchofchemistry.com/discovery-of-hair-dye.htm8.Morel. Olivier ,Christie. Robert. American Chemical Society. 2011. Volume 4. 2537-2561.