spp and its application in dye decolorization Project supervisor: Dr. R. Masalu Lab scientist: Mr. Chuwa INTRODUCTION: Due to rapid industrialization and urbanization‚ a lot of chemicals including dyes are manufactured and used in day-to-day life. Dyes are synthetic and aromatic molecular structural compounds. According to their dissociation in an aqueous solution‚ dyes can be classified as acid‚ direct reactive dyes (anionic)‚ basic dyes (cationic) and disperse dyes (nonionic). They are used
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Visual Arts Topic: Textile and Design Manipulation Topic: Tie Dye Time: 4 sessions x 30 mins each General Objective To be able to use appropriate materials to create designs on fabric by various tie dyeing techniques. Specific Objectives At the end of the lesson students should be able to: ✓ 1. Define Tie Dye ✓ 2. List materials needed for tie dyeing ✓ 3. Explain Tie Dye as a resist dyeing ✓ 4. Know different techniques and explain each of
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answer through your investigations: 1. Which fabric (a) cotton‚ a natural fiber and (b) rayon‚ a synthetic fiber is best dyed with mayana-alum dye combination? 2. Often‚ mordants are added to fix the dye onto the fabrics. These are usually inorganic oxides or salts which form colored complex with the dye. Which mordant is more suited for dyeing cotton with dye extracted from eggplant skins? 3. Which mordant is more suitable for dyeing a synthetic fiber with the synthetic extract from mangosteen
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Natural dyes Natural dyes are dyes or colorants derived from plants‚ invertebrates‚ or minerals. The majority of natural dyes are vegetable dyes from plant sources – roots‚ berries‚bark‚ leaves‚ and wood — and other organic sources such as fungi and lichens. Archaeologists have found evidence of textile dyeing dating back to the Neolithicperiod. In China‚ dyeing with plants‚ barks and insects has been traced back more than 5‚000 years.[1] The essential process of dyeing changed little over time
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well-done Chromatography of dyes will provide you with enough data to determine if a liquid mixture is heterogeneous or homogenous . In a learning activity you can separate and possibly identify food dyes in some drinks mixes and food colors. The effect of solvent polarity or the ability to separate and elute compounds will also be demonstrated. In this experiment you will need to use the equation Xcm/Acm=RF value. The length of A‚ is the length of the longest line of the food dye or food coloring. The
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In this experiment the objective is to separate dyes in washable markers to see how many different dyes are combined to create one color. The technique used to separate the dyes in this experiment is called chromatography. The materials used consisted of – 3 pieces of chromatography paper‚ a tall clear glass‚ water‚ table salt‚ 1 tsp. measuring spoon‚ an 8 oz. measuring cup‚ pencil‚ ruler‚ 6 washable markers‚ and paper towels. The markers used in this experiment have to be water soluble therefore
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Report ROOM NO: FE E309 EXPERIMENT NO : 8 TITLE : Thin Layer Chromatography of Food Dyes Submitted by Class Partners Instructor : Lyndsay Grover : BIOL 10000 lab. : Awatif Hagelamin : Farag Soliman Date lab performed : February 3‚ 2011 Date of submission : February 10‚ 2011 FENNELL CAMPUS HAMILTON‚ ONTARIO 1/3 Purpose: The purpose of this experiment was to observe the reactions of food dyes with thin layer chromatography paper in order to find the components of an unknown solution
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Methods: In this lab using the bag of FD&C dyes‚ bag of M&M’s‚ 2 packs of Kool-Aid ‚ and a pack of Clover Valley store brand food coloring I am going to place a drop of each dye at the bottom of the chromatography paper. For the experiment with the rubbing alcohol I also placed a drop of each dye‚ but used a paper coffee filter. In order to get the dye color extracted from the M&M’s and Kool-Aid I added a little additional water. After applying all of the dyes and allowing them to dry completely I placed
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Natural dyes are dyes or colorants derived from plants‚ invertebrates‚a or minerals. The majority of natural dyes are vegetable dyes from plant sources – roots‚ berries‚ bark‚ leaves‚ and wood — and other organic sources such as fungi and lichens. Archaeologists have found evidence of textile dyeing dating back to the Neolithic period. In China‚ dyeing with plants‚ barks and insects has been traced back more than 5‚000 years.[1] The essential process of dyeing changed little over time. Typically
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ARTICLE TRADITIONAL DYE PLANTS OF MANIPUR Sanjeev Rana Knitwear Department‚ National Institute of Fashion Technology Abstract Manipur is one of the richest states in plant biodiversity in the North Eastern states of India. Different ethnic groups‚ residing in Manipur before the introduction of the chemical dyes into the state‚ used the dyes extracted from the plants. Women in Manipur practice dyeing using varieties of plant leaves‚ flowers and tree barks. The natural dyes were obtained from
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