Photochemical and photocatalytic degradiation of an indigoid
daye : a case study of acid blue 74(AB74).
8,685,419 B2; L'Oreal, Paris, has been awarded a patent for a cosmetic composition that is comprised of, in an cosmetically acceptable medium, at least one colorant comprising an inorganic fibrous matrix with tunnels; and at least one organic dye compound incorporated at least partially in the tunnels; wherein at least 30% of the total weight amount of organic dye is included in the channels of the fibrous matrix, the organic dye compound is an indigoid
, and a weight ratio of organic dye compound to inorganic fibrous matrix is greater than or equal to 0.
Chemical (HPLC) analysis of 15 individually pigmented fossilised textile fragments showed the same mixtures of indigoid and indirubinoid components identified in the sediments (Figure 3e).
Identification of indigoid natural dyestuffs used in art objects by HPLC coupled to APCI-MS.
Identification of the coloring constituents of four natural indigoid dyes.
trunculus are species-specific and not related to ecology, as considered before, and that the dye had the chemical properties of indigoid pigments.
HPLC analysis of the natural scale insect, madder, and indigoid dyes.
The chemical composition of the indigoid dyes derived from the hypobranchial glandular secretions of Murex mollusks.
Dye plants include natural chromogenes such as indigoid
, anthraquinones, naphthaquinones, phenalones, anthocyanins, tannis, carotenoids and chlorophyll that allow the various pigment colours to be obtained .
Tailor-made solutions/segmentation Innovations and value-adding benefits Table 2: Color Index Numbers Are Related to Chromophores Chromophore CI Number Azo (CI 11XXX-35XXX) Triarylmethane (CI 42XXX-44XXX) Xanthene (CI 45XXX) Quinoline (CI 47XXX) Anthraquinone (CI 58XXX-72XXX) Indigoid
(CI 73XXX) Phthalocyanine (CI 74XXX) Inorganic (CI 77XXX)
Aryl hydrocarbon receptor response to indigoids
in vitro and in vivo.
Quantitative Assessment of Antioxidant Properties of Natural Colorants and Phytochemicals: Carotenoids, Flavonoids, Phenols and Indigoids