Examples of 'dye precursors' in a sentence
Meaning of "dye precursors"
dye precursors: Chemical compounds or substances that are used as ingredients in the production of dyes, which undergo chemical reactions to form the final colored product
How to use "dye precursors" in a sentence
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dye precursors
Another family of indicators is tetrazolium dye precursors.
Such oxidation dye precursors must also be harmless.
Also useful are mixtures of these dye precursors.
At least one of these dye precursors is typically present.
The dye precursors can be used alone or in combination.
One or more oxidation dye precursors and.
Dye precursors may also be used.
Oxidation dye precursors.
Oxidation bases and couplers may be used as oxidation dye precursors.
The oxidation dye precursors which are useable are known per se.
Oxidizing agents can activate oxidative dye precursors across a range of pH.
Suitable dye precursors and optional modifiers are described above.
It is already known practice to combine these dye precursors with bioheteropolysaccharides.
Phosphate dye precursors and use thereof for dyeing keratin fibers.
It is also contemplated that combinations of these various dye precursors may be used.
See also
The use of oxidation dye precursors is widespread in the field of hair dyeing.
The compositions of the invention can also contain other oxidation dye precursors.
This is advantageous as certain dye precursors are very unhealthy and very carcinogenic.
Said dye precursors mentioned in these documents are hereby incorporated herein by reference.
The dye precursor may be used alone or in combination with other dye precursors.
The dye precursors and oxidant employed in producing the dye compositions were fixed.
The lotion may contain organic solvents to assist in dissolving the dye precursors.
Oxidation dye precursors which can be used include oxidation bases and couplers.
Dyeing process employing indole dyes and oxidation dye precursors and dyeing agents employed.
These dye precursors are then oxidized, which combine to form larger molecules.
Small aromatic colourless dye precursors e . g.
The oxidation dye precursors used very particularly in accordance with the present invention are,.
Consequently, such compounds would not be expected to be useful as permanent hair dye precursors.
The Asian indigo dye precursors is more readily obtained.
In this invention, the color base composition may contain a wide variety of oxidation dye precursors.
Eligible electron donating dye precursors are chromogenic compounds, such as phthalide, leucauramine and fluoran compounds.
Other preferable color-developing compounds used in the present invention are electron donative dye precursors.
Likewise, with a CB printing ink typical dye precursors may be used.
Such coupled reaction systems frequently utilize hydrolysis or oxidation-reduction reactions to activate dye precursors.
The mixture was heated to 118°C to dissolve the dye precursors.
These compounds of formulas 1 and 2 are the essential dye precursors.
P-phenylene diamine and o-aminophenol are used as the dye precursors.
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