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Acid red 88 is an acid dye used to produce red woolen yarns.
An acid dye is a dye that is typically applied to a textile at low pH. They are mainly used to dye wool, not cotton fabrics.[1] Some acid dyes are used as food colorants,[2][3] and some can also be used to stain organelles in the medical field.
Acid dyes are anionic, soluble in water and are essentially applied from acidic bath. These dyes possess acidic groups, such as SO3H and COOH and are applied on wool, silk and nylon when ionic bond is established between protonated –NH2 group of fibre and acid group of dye. Overall wash fastness is poor although lightfastness is quite good. As dye and fibre contain opposite electrical nature, strike rate and uptake of acid dye on these fibres is faster; electrolyte at higher concentration is added to retard dye uptake and to form levelled shades. Acid generates cation on fibre and temperature helps to substitute negative part of acid with anionic dye molecules.[4]
^Booth, Gerald (2000). "Dyes, General Survey". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a09_073. ISBN 3527306730.
^Trowbridge Filippone, Peggy. "Food Color Additives". Archived from the original on April 5, 2015. Retrieved September 8, 2016.
^Klaus Hunger, ed. (2003), Industrial Dyes: Chemistry, Properties, Applications (in German), Weinheim: WILEY-VCH Verlag, pp. 276ff, ISBN 978-3-662-01950-4
^A K Roy Choudhary, “Textile Preparation and Dyeing”, Science Publishers, USA (2006)
An aciddye is a dye that is typically applied to a textile at low pH. They are mainly used to dye wool, not cotton fabrics. Some aciddyes are used as...
this category. Examples of aciddye are Alizarine Pure Blue B, Acid red 88, etc. Basic dyes are water-soluble cationic dyes that are mainly applied to...
effects such as stone washing and acid washing to be applied quickly, which is why clothing made with natural Indigo dye tends to be more expensive. The...
structures are carminic acid (in cochineal dyes), kermesic acid (in kermes dye) and laccaic acids (in lac dye). Carminic acid is extracted from the female...
lemon yellow azo dye primarily used as a food coloring. It is also known as E number E102, C.I. 19140, FD&C Yellow 5, Yellow 5 Lake, Acid Yellow 23, Food...
also been used as medicine (antiseptic, burn treatments) and as a dye. Picric acid was probably first mentioned in the alchemical writings of Johann Rudolf...
Acid Orange 7, also known as 2-naphthol orange is an azo dye. It is used for dyeing wool. It is produced by azo coupling of β-naphthol and diazonium derivative...
with basic dyes, while nylon and protein fibers such as wool and silk are dyed with aciddyes, and polyester yarn is dyed with dispersed dyes. Cotton is...
Trichrome staining is a histological staining method that uses two or more aciddyes in conjunction with a polyacid. Staining differentiates tissues by tinting...
is an organic compound and dye based on the xanthene tricyclic structural motif, formally belonging to triarylmethine dyes family. It is available as...
Acid red 88 is an azo dye. Due to its intense colour, solid samples appear almost black. It is used to dye cotton textiles red. A closely related acid...
orange shows red color in acidic medium and yellow color in basic medium. Because it changes color at the pKa of a mid strength acid, it is usually used in...
as a trade name by the Blackley-based dye manufacturer Levinstein Ltd, in marketing a range of acid wool dyes. In 1896 during the Fourth Anglo–Ashanti...
cosmetics. It is classified as a triarylmethane dye and is known under various names, such as FD&C Blue No. 1 or acid blue 9. It is denoted by E number E133 and...
Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The majority of natural dyes are vegetable dyes from plant sources—roots...
coordination complex of dye and ion is colloidal and can be either acidic or alkaline. Mordants include tannic acid, oxalic acid, alum, chrome alum, sodium...
sulfate, cetylpyridinium chloride etc. b) Acidic mordant : React with basic dyes e.g. picric acid, tannic acid etc. Direct Staining: Carried out without...
Acid Blue 25 (C20H13N2NaO5S) is an aciddye that is water-soluble and anionic and used for adsorption research. The structure is an anthraquinone. Acid...
5-amino-4-methoxy-2-toluenesulfonic acid with 6-hydroxy-2-naphthalene sulfonic acid in an azo coupling reaction. Allura Red AC is a popular dye used worldwide. Annual...
used to display it.) The generic name lists first the class of dye (aciddye, disperse dye, etc.), then its hue (e.g., orange), followed by a number assigned...
Sulphan Blue, Acid Blue 3, L-Blau 3, C-Blau 20, Patentblau V, Sky Blue, or C.I. 42051, is a sky blue synthetic triphenylmethane dye used as a food coloring...
cochineal dyes for textiles since at least 700 CE. Synonyms are C.I. 75470 and C.I. Natural Red 4. The chemical structure of carminic acid consists of...
Acid orange 20 (also Orange I) is an organic compound and an azo dye. It is one of the first water soluble dyes to be commercialized, and one of seven...
a pure acid is needed. Citric acid can be used in food coloring to balance the pH level of a normally basic dye.[citation needed] Citric acid is an excellent...
azo dye which can be used in a variety of food products, and is usually synthesized from aromatic hydrocarbons; it is stable to light, heat, and acid but...
Kermesic acid is an anthraquinone derivative and the main component of the red dye kermes (false carmine). The compound is the aglycone of carminic acid, the...
serving as a markers (or dyes, or tags, or reporters) for affine or bioactive reagents (antibodies, peptides, nucleic acids). Fluorophores are notably...
and fats, on the cloth and then dyeing it in cold dye-liquor. The great affinity of the silk fibre for basic and acid dyestuffs enables it to extract...
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