There is also a synthetic dye that has been named " amaranth " for its similarity in color to the natural amaranth pigments known as betalains.

This synthetic dye is also known as Red No. 2 in North America and E123 in the European Union.

A famous example of a bromine-containing organic compound that has been used by humans since ancient times is the fabric dye Tyrian purple.

The brominated indole indigo dye is produced by a medium-sized predatory sea snail, the marine gastropod Murex brandaris.

A dye-sublimation printer ( or dye-sub printer ) is a printer which employs a printing process that uses heat to transfer dye to a medium such as a plastic card, paper or canvas.

This tube is placed in a specially constructed apparatus so that it is totally surrounded by optical fibres to capture all light emitted once the dye is excited using a laser.

The carcinogenity of chromate dust is known for a long time, and in 1890 the first publication described the elevated cancer risk of workers in a chromate dye company.

The polycarbonate disc is coated on the pregroove side with a very thin layer of organic dye.

Then, on top of the dye is coated a thin, reflecting layer of silver, a silver alloy, or gold.

Maintaining a constant rate is essential to ensure proper size and spacing of the pits and lands burned into the dye layer.

As well as providing timing information, the ATIP ( absolute time in pregroove ) is also a data track containing information about the CD-R manufacturer, the dye used and media information ( disc length and so on ).

# Cyanine dye CD-Rs were the earliest ones developed, and their formulation is patented by Taiyo Yuden.

Phthalocyanine is a natively stable dye ( has no need for stabilizers ) and CD-Rs based on this are often given a rated lifetime of hundreds of years.

Unlike cyanine, phthalocyanine is less resistant to UV rays and CD-Rs based on this dye show signs of degradation only after two weeks of direct sunlight exposure.

However, phthalocyanine is more sensitive than cyanine to writing laser power calibration, meaning that the power level used by the writing laser has to be more accurately adjusted for the disc in order to get a good recording ; this may erode the benefits of dye stability, as marginally written discs ( with higher correctable error rates ) will lose data ( i. e. have uncorrectable errors ) after less dye degradation than well written discs ( with lower correctable error rates ).

# Azo dye CD-Rs are dark blue in color, and their formulation is patented by Mitsubishi Chemical Corporation.

Azo dye is also chemically stable, and Azo CD-Rs are typically rated with a lifetime of decades.

Azo is the most resistant dye against UV rays and begins to degrade only after the third or fourth week of direct sunlight exposure.

More modern implementations of this kind of dye include Super Azo which is not as deep blue as the earlier Metal Azo.

The quality of the disc is also not only dependent on the dye used, it is also influenced by sealing, the top layer, the reflective layer, and the polycarbonate.

Efficient energy transfer occurs between the encapsulated dye and nanotube — light is absorbed by the dye and without significant loss is transferred to the SWCNT.

Skeins and balls are generally sold with a yarn band, a label that describes the yarn's weight, length, dye lot, fiber content, washing instructions, suggested needle size, likely gauge, etc.

Crocheters generally ensure that the yarn for a project comes from a single dye lot.

A great variety of synthetic dyes have been developed since the synthesis of indigo dye in the mid-19th century ; however, natural dyes are also possible, although they are generally less brilliant.

In contrast with a dye, a pigment generally is insoluble, and has no affinity for the substrate.

Skeins and balls are generally sold with a yarn-band, a label that describes the yarn's weight, length, dye lot, fiber content, washing instructions, suggested needle size, likely gauge, etc.

Knitters generally ensure that the yarn for a project comes from a single dye lot.

A great variety of synthetic dyes have been developed since the synthesis of indigo dye in the mid-19th century ; however, natural dyes are also possible, although they are generally less brilliant.

In 1936, the German Agfa followed with their own integral tripack film, Agfacolor Neu, which was generally similar to Kodachrome but had one important advantage: Agfa had found a way to incorporate the dye couplers into the emulsion layers during manufacture, allowing all three layers to be developed at the same time and greatly simplifying the processing.

But more generally it is covalently bonded to a macromolecule, serving as a marker ( or dye, or tag, or reporter ) for affine or bioactive reagents ( antibodies, peptides, nucleic acids ).

Soda ash ( sodium carbonate ) is generally used to raise the pH and is either added directly to the dye, or in a solution of water in which garments are soaked before dyeing.

Colored smoke devices use a formula that consists of an oxidizer ( typically potassium chlorate, KClO < sub > 3 </ sub >), a fuel ( generally sugar ), a moderant ( such as sodium bicarbonate ) to keep the reaction from getting too hot, and a powdered organic dye.

Due to the potentially toxic nature of CN and the generally superior incapacitating qualities of oleoresin capsicum ( OC ) pepper spray in most situations, the early CN has been mostly supplanted in by all OC formulas in police use, although Mace Security International still retains a popular " Triple Action " formula combining CN, OC and an ultraviolet marker dye.

The primary source of dye, historically, has generally been nature, with the dyes being extracted from animals or plants.

Treatment of infants with the flashlamp pumped dye laser generally produces marked improvement in appearance.

Huito is semi-permanent, and it generally takes weeks for this black dye to fade.

Whilst it generally excites at 485 nm, and emits at 525 nm ( 552 / 636 nm in methanol ), the fluorescence of the dye is heavily dependent on the solvent used, and in some cases does not fluoresce at all.

Every year, women volunteer to become sexual tutors to boys who have reached maturity ; the name of their office changes from culture to culture, but they are generally furnished with some distinguishing marking, often the Mother's sacred color red ( red dye on the soles of the feet for the Mamutoi ; a red fringe among the Zelandonii ).

Typically used dye molecules generally have poorer absorption in the red part of the spectrum compared to silicon, which means that fewer of the photons in sunlight are usable for current generation.

A dye is a colored substance that has an affinity to the substrate to which it is being applied.

Acid dyes are water-soluble anionic dyes that are applied to fibers such as silk, wool, nylon and modified acrylic fibers using neutral to acid dye baths.

" Cold " reactive dyes, such as Procion MX, Cibacron F, and Drimarene K, are very easy to use because the dye can be applied at room temperature.

Originally, dye was applied by importers to hide stains on the shells caused when the nuts were picked by hand.

The sublimation name is applied because the dye transitions between the solid and gas states without going through a liquid stage.

Tiny heating elements on the head change temperature rapidly, laying different amounts of dye depending on the amount of heat applied.

Usually, a suitable dye, such as Giemsa, is applied after cells have been arrested during cell division by a solution of colchicine.

Dye line may refer either to a streakline: dye released gradually from a fixed location during time ; or it may refer to a timeline: a line of dye applied instantaneously at a certain moment in time, and observed at a later instant.

Rubber stamping, also called stamping, is a craft in which some type of ink made of dye or pigment is applied to an image or pattern that has been carved, molded, laser engraved or vulcanized, onto a sheet of rubber.

Carmine is the name given to the dye made from the dried bodies of the female cochineal, although the name crimson is sometimes applied to these dyes too.

Melo and Rondão write that woad was known " as far back as the time of the ancient Egyptians, who used it to dye the cloth wrappings applied for the mummies.

Melted wax ( Javanese: malam ) is applied to cloth before being dipped in dye.

In that identity, his guardians applied a brown dye patch on his back for a disguise which Krypto could burn off with his heat vision when he went into costume ; later, the Kents devised a pullcord-activated dye applicator and other methods which Krypto could use to switch to " Skip " and back without assistance.

A dampened brush was rubbed against a cake containing soap and black dye in equal proportions and applied to the lashes.

Where the paste mixture covers and permeates the cloth, dye applied later will not penetrate.

The fabric is then accordingly folded along the line and bound into one or more areas to which the dye is applied.

Bindings, which resist dye penetration, are applied to the threads in the desired patterns and the threads are dyed.

Dyes are applied to textile goods by dyeing from dye solutions and by printing from dye pastes.

The term " direct dye application " stems from some dyestuff having to be either fermented as in the case of some natural dye or chemically reduced as in the case of synthetic vat and sulfur dyes before being applied.