"Dyes and dolls by ducille" Essays and Research Papers

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    The Dye

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    Tie-dye is a modern term coined in the mid-1960s in the United States for a set of ancient resist-dyeing techniques‚ and for the products of these processes. The process of tie-dye typically consists of folding‚ twisting‚ pleating‚ or crumpling fabric or a garment and binding with string or rubber bands‚ followed by application of dye. The manipulations of the fabric prior to application of dye are called resists‚ as they partially or completely prevent the applied dye from colouring the fabric.

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    Dye Decolorization

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    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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    Tie Dye

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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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    Dye Solution

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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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    tie dye

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    to dye 3. 1 package RIT powder dye or 1/2 bottle RIT liquid dye 4. Rubber bands‚ string‚ or 2-inch wide strips of cloth for tying Instructions: 1. Gather the shirt into accordion-like folds‚ then fold the gathered fabric in half. Band tightly with cloth strips every 2 or 3 inches.   2. Before starting to dye‚ put on rubber gloves and prepare the dye bath. Dissolve 1 package RIT powder dye or 1/2 cup RIT liquid dye in about 2 gallons very hot water. For dark or bright colors‚ prepare dye bath

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    Food Dyes

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    the world and sometimes different bodies have different views on food color safety. In the United States‚ FD&C numbers (which indicate that the FDA has approved the colorant for use in foods‚ drugs and cosmetics) are given to approved synthetic food dyes that do not exist in nature‚ while in the European Union‚ E numbers are used for all additives‚ both synthetic and natural‚ that are approved in food applications. The food colors are known by E numbers that begin with a 1‚ such as E100 (turmeric)

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    Natural Dyes

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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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    Tie Dye

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    The earliest surviving examples of pre-Colombian tie-dye in Peru date from 500 to 800A.D. Their designs include small circles and lines‚ with bright colors including red‚ yellow‚ blue‚ and green.[4] Shibori includes a form of tie-dye that originated in Japan. It has been practiced there since at least the eighth century. Shibori includes a number of labor-intensive resist techniques including stitching elaborate patterns and tightly gathering the stitching before dyeing‚ forming intricate designs

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    Natural Dye

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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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    Chromatography of Dyes

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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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