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Would water be a suiable solvent for every dye?
-Cationic dyes (basic dyes) are soluble in polar solvents such as water, alcohols -Nonionic Fat-soluble dyes line metal-free azo and anthraquinone dyes are soluble in aromatic and aliphatic hydrocarbons. -Metal-complex dyes are normally soluble in alcohols, ketones, glycoethers
Why azo dyes are resticted for textile dyeing printing?
The azo dyes that are restricted for textile use have been so restricted because they cause skin hypersensitivity and allergies. Not all azo dyes are so restricted--there are eleven azo dyes that are approved for use in food.
How is salt used by the chemical industries?
as a feedstock in the manufacture of chlorine and caustic soda, which was used to make everything from soap, dyes, and dairy products to glass, pulp, and paper. Other uses included water conditioning
What are the uses of dyes?
clothing mugs mood rings
How is chemistry related to painting?
i know paint pigments are based on chemical compounds, that's why they have names like titanium white or cadmium yellow.
How does urea affect dyeing of fabrics?
Urea helps the dye penetrate the fabric. Moisture is an important component of the chemical reaction process with dyes, and urea helps draw moisture to the chemical reaction. Urea also helps to keep the fabric damp long enough for the reaction to occur.
What is definition of forest based dyes?
the definition is that dyes like colors in the forest like dyes were base
What the relevant between urea and textile?
Urea, a nitrogen-containing compound, is commonly used in the textile industry in dyeing and printing processes to fix dyes to fabrics. Urea can also be found in some textile finishes to improve fabric properties like softness and wrinkle resistance.
Why aromatic ring is present in all dyes structure?
Aromatic ring present in all dyes structure ,because its mainly based on radical and nucleophilic
Are Crayola markers water based?
Yes all crayola markers are water based but some are washable and some are not based on the dyes in them
What are the ratings and certificates for Gilmore Girls - 2000 One's Got Class and the Other One Dyes 3-4?
Gilmore Girls - 2000 One's Got Class and the Other One Dyes 3-4 is rated/received certificates of: Argentina:Atp
What types of synthetic dyes are there?
There are may types of dyes but these are the ones I know of. Acid dyes Azoic dyes Basic dyes Chrome dyes Mordant Developed dyes Direct dyes Disperse dyes Reactive dyes Sulphur dyes Vat dyes Raw fibres Velour cloth and furs Batik Tie dyeing BY MAX TURNER
What do you mean vegetarian red?
Red dyes are often made of insects. Carmine red, cochineal red, or natural red 4 are all made from insects, usually powdered beetles. Vegetarian red dye uses other resources. Use caution when selecting vegetarian dyes. Some vegetarian dyes, such as Red 2 and Red 40 are petroleum or coal based, and not considered all that healthy by some groups. Look for dyes that are vegetable or fruit based. Beets and pomegranates are sometimes used to make healthier vegetarian versions of these dyes.
What is a good and natural dye resist for dyeing fabric?
Wax is a traditional resist for water based fabric dyes.
What types of dyes are used for different textile fibers Why?
vat dyes acid dyes
How is fabric dyed in factories?
The textile materials are dyed or given color by means of various available dyes and pigments. There are various dyes such as reactive dyes,azoic dyes ,direct dyes,etc. The dyes are selected upon analyzing the properties of material to be dyed.
What is the science of pysanky or Ukrainian egg dying?
The shell of an egg is a protein-calcium carbonate matrix, with the outermost layer (cuticle) being mostly protein. Egg dyes, which are acid based, bind to the protein portions of the eggshell. Eggs can be dyed both with natural vegetable and animal based dyes, or with modern aniline dyes. These dyes are all acid dyes, meaning that the dye releases hydrogen anions in water. Beeswax is used to "write" designs on eggs. The area covered with wax is protected from the dye and will not change color. By using a series of waxings and dye baths, intricate designs can be created. Click on the links below for more detailed information.
